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  • 1.
    Ahlgren, Kerstin M
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Fall, Tove
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Molecular epidemiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Landegren, Nils
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Grimelius, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Molecular and Morphological Pathology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    von Euler, Henrik
    Sundberg, Katarina
    Lindblad-Toh, Kerstin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Genomics. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Lobell, Anna
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Hedhammar, Åke
    Andersson, Göran
    Hansson-Hamlin, Helene
    Lernmark, Åke
    Kämpe, Olle
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Lack of evidence for a role of islet autoimmunity in the aetiology of canine diabetes mellitus2014In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 9, no 8, p. e105473-Article in journal (Refereed)
    Abstract [en]

    AIMS/HYPOTHESIS:

    Diabetes mellitus is one of the most common endocrine disorders in dogs and is commonly proposed to be of autoimmune origin. Although the clinical presentation of human type 1 diabetes (T1D) and canine diabetes are similar, the aetiologies may differ. The aim of this study was to investigate if autoimmune aetiology resembling human T1D is as prevalent in dogs as previously reported.

    METHODS:

    Sera from 121 diabetic dogs representing 40 different breeds were tested for islet cell antibodies (ICA) and GAD65 autoantibodies (GADA) and compared with sera from 133 healthy dogs. ICA was detected by indirect immunofluorescence using both canine and human frozen sections. GADA was detected by in vitro transcription and translation (ITT) of human and canine GAD65, followed by immune precipitation. Sections of pancreata from five diabetic dogs and two control dogs were examined histopathologically including immunostaining for insulin, glucagon, somatostatin and pancreas polypeptide.

    RESULTS:

    None of the canine sera analysed tested positive for ICA on sections of frozen canine or human ICA pancreas. However, serum from one diabetic dog was weakly positive in the canine GADA assay and serum from one healthy dog was weakly positive in the human GADA assay. Histopathology showed marked degenerative changes in endocrine islets, including vacuolisation and variable loss of immune-staining for insulin. No sign of inflammation was noted.

    CONCLUSIONS/INTERPRETATIONS:

    Contrary to previous observations, based on results from tests for humoral autoreactivity towards islet proteins using four different assays, and histopathological examinations, we do not find any support for an islet autoimmune aetiology in canine diabetes mellitus.

  • 2.
    Al-Amin, Rasel A.
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology. Science for Life Laboratory, SciLifeLab, Science for Life Laboratory, SciLifeLab.
    Johansson, Lars
    Division of Translational Medicine & Chemical Biology, Department of Medical Biochemistry & Biophysics, Karolinska Institutet.
    Landegren, Nils
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab. Department of Medicine (Solna), Karolinska University Hospital, Karolinska Institutet.
    Löf, Liza
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Molecular tools. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Abdurakhmanov, Eldar
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Biochemistry.
    Blokzijl, Andries
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Molecular tools. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Svensson, Richard
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmacy. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Lönn, Peter
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Molecular tools. Dept. Of Immunology, Genetics and Pathology,.
    Söderberg, Ola
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Molecular tools. Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
    Kamali-Moghaddam, Masood
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Molecular tools. Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
    Danielson, U. Helena
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Biochemistry. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Artursson, Per
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmacy. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Lundbäck, Thomas
    Division of Translational Medicine & Chemical Biology, Department of Medical Biochemistry & Biophysics, Karolinska Institutet.
    Landegren, Ulf
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Molecular tools. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Target Engagement-Mediated Amplification for Monitoring Drug-Target Interactions in SituManuscript (preprint) (Other academic)
    Abstract [en]

    It is important to determine the localization of drugs or drug candidates at cellular and subcellular resolution in relevant clinical specimens. This is necessary to evaluate drug candidates from early stages of drug development to clinical evaluation of mutations potentially causing resistance to targeted therapy. We describe a technology where oligonucleotide-conjugated drug molecules are used to visualize and measure target engagement in situ via rolling-circle amplification (RCA) of circularized oligonucleotide probes (padlock probes). We established this target engagement-mediated amplification (TEMA) technique using kinase inhibitor precursor compounds, and we applied the assay to investigate target interactions by microscopy in pathology tissue sections and using flow cytometry for blood samples from patients, as well as in commercial arrays including almost half of all human proteins.  In the variant proxTEMAtechnique, in situ proximity ligation assays were performed by combining drug-DNA conjugates with antibody-DNA conjugates to specifically reveal drug binding to particular on- or off-targets in pathological tissues sections. In conclusion, the TEMA methods successfully visualize drug-target interaction by experimental and clinically approved kinase inhibitors in situ and with kinases among a large collection of arrayed proteins. 

  • 3.
    Albrecht, Inka
    et al.
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Wick, Cecilia
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Hallgren, Asa
    Karolinska Inst, Dept Med Solna, Expt Endocrinol, SE-17176 Stockholm, Sweden..
    Tjarnlund, Anna
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Nagaraju, Kanneboyina
    Childrens Natl Med Ctr, Med Genet Res Ctr, Washington, DC 20010 USA..
    Andrade, Felipe
    Johns Hopkins Univ, Sch Med, Dept Med, Baltimore, MD 21205 USA..
    Thompson, Kathryn
    Childrens Natl Med Ctr, Med Genet Res Ctr, Washington, DC 20010 USA..
    Coley, William
    Childrens Natl Med Ctr, Med Genet Res Ctr, Washington, DC 20010 USA..
    Phadke, Aditi
    Childrens Natl Med Ctr, Med Genet Res Ctr, Washington, DC 20010 USA..
    Diaz-Gallo, Lina-Marcela
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Bottai, Matteo
    Karolinska Inst, Inst Environm Med, Unit Biostat, SE-17176 Stockholm, Sweden..
    Nennesmo, Inger
    Karolinska Inst, Dept Lab Med, SE-17176 Stockholm, Sweden..
    Chemin, Karine
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Herrath, Jessica
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Johansson, Karin
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Wikberg, Anders
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Ytterberg, A. Jimmy
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden.;Karolinska Inst, Dept Med Biochem & Biophys, SE-17176 Stockholm, Sweden..
    Zubarev, Roman A.
    Karolinska Inst, Dept Med Biochem & Biophys, SE-17176 Stockholm, Sweden..
    Danielsson, Olof
    Linkoping Univ, Fac Hlth Sci, Dept Clin & Expt Med, Div Neurol, Linkoping, Sweden..
    Krystufkova, Olga
    Charles Univ Prague, Fac Med 1, Inst Rheumatol, Prague, Czech Republic.;Charles Univ Prague, Fac Med 1, Dept Rheumatol, Prague, Czech Republic..
    Vencovsky, Jiri
    Charles Univ Prague, Fac Med 1, Inst Rheumatol, Prague, Czech Republic.;Charles Univ Prague, Fac Med 1, Dept Rheumatol, Prague, Czech Republic..
    Landegren, Nils
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Karolinska Inst, Dept Med Solna, Expt Endocrinol, SE-17176 Stockholm, Sweden..
    Wahren-Herlenius, Marie
    Karolinska Inst, Dept Med Solna, Expt Rheumatol Unit, SE-17176 Stockholm, Sweden..
    Padyukov, Leonid
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Kämpe, Olle
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Karolinska Inst, Dept Med Solna, Expt Endocrinol, SE-17176 Stockholm, Sweden..
    Lundberg, Ingrid E.
    Karolinska Inst, Dept Med Solna, Theumatol Unit, SE-17176 Stockholm, Sweden..
    Development of autoantibodies against muscle-specific FHL1 in severe inflammatory myopathies2015In: Journal of Clinical Investigation, ISSN 0021-9738, E-ISSN 1558-8238, Vol. 125, no 12, p. 4612-4624Article in journal (Refereed)
    Abstract [en]

    Mutations of the gene encoding four-and-a-half LIM domain 1 (FHL1) are the causative factor of several X-linked hereditary myopathies that are collectively termed FHL1-related myopathies. These disorders are characterized by severe muscle dysfunction and damage. Here, we have shown that patients with idiopathic inflammatory myopathies (IIMs) develop autoimmunity to FHL1, which is a muscle-specific protein. Anti-FHL1 autoantibodies were detected in 25% of IIM patients, while patients with other autoimmune diseases or muscular dystrophies were largely anti-FHL1 negative. Anti-FHL1 reactivity was predictive for muscle atrophy, dysphagia, pronounced muscle fiber damage, and vasculitis. FHL1 showed an altered expression pattern, with focal accumulation in the muscle fibers of autoantibody-positive patients compared with a homogeneous expression in anti-FHL1-negative patients and healthy controls. We determined that FHL1 is a target of the cytotoxic protease granzyme B, indicating that the generation of FHL1 fragments may initiate FHL1 autoimmunity. Moreover, immunization of myositis-prone mice with FHL1 aggravated muscle weakness and increased mortality, suggesting a direct link between anti-FHL1 responses and muscle damage. Together, our findings provide evidence that FHL1 may be involved in the pathogenesis not only of genetic FHL1-related myopathies but also of autoimmune IIM. Importantly, these results indicate that anti-FHL1 autoantibodies in peripheral blood have promising potential as a biomarker to identify a subset of severe IIM.

  • 4.
    Bremer, Hanna D.
    et al.
    Swedish Univ Agr Sci, Dept Clin Sci, SE-75007 Uppsala, Sweden..
    Landegren, Nils
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Karolinska Inst, Karolinska Univ Hosp, Dept Med Solna, Stockholm, Sweden..
    Sjöberg, Ronald
    KTH Royal Inst Technol, Sch Biotechnol, Affin Prote, SciLifeLab, SE-17121 Solna, Sweden..
    Hallgren, Åsa
    Karolinska Inst, Karolinska Univ Hosp, Dept Med Solna, CMM, L8 01, SE-17176 Stockholm, Sweden..
    Renneker, Stefanie
    Euroimmun AG, D-23560 Lubeck, Germany..
    Lattwein, Erik
    Euroimmun AG, D-23560 Lubeck, Germany..
    Leonard, Dag
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Eloranta, Maija-Leena
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Rönnblom, Lars
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology.
    Nordmark, Gunnel
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Nilsson, Peter
    KTH Royal Inst Technol, Sch Biotechnol, Affin Prote, SciLifeLab, SE-17121 Solna, Sweden..
    Andersson, Goran
    Swedish Univ Agr Sci, Dept Anim Breeding & Genet, SE-75007 Uppsala, Sweden..
    Lilliehöök, Inger
    Swedish Univ Agr Sci, Dept Clin Sci, SE-75007 Uppsala, Sweden..
    Lindblad-Toh, Kerstin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab. Broad Inst Harvard & MIT, Cambridge, USA..
    Kämpe, Olle
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Karolinska Inst, Karolinska Univ Hosp, Dept Med Solna, CMM, L8 01, SE-17176 Stockholm, Sweden.; Univ Bergen, Dept Clin Sci, N-5021 Bergen, Norway.;Univ Bergen, KG Jebsen Ctr Autoimmune Disorders, N-5021 Bergen, Norway.;Haukeland Hosp, Dept Med, N-5021 Bergen, Norway..
    Hansson-Hamlin, Helene
    Swedish Univ Agr Sci, Dept Clin Sci, SE-75007 Uppsala, Sweden..
    ILF2 and ILF3 are autoantigens in canine systemic autoimmune disease2018In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, article id 4852Article in journal (Refereed)
    Abstract [en]

    Dogs can spontaneously develop complex systemic autoimmune disorders, with similarities to human autoimmune disease. Autoantibodies directed at self-antigens are a key feature of these autoimmune diseases. Here we report the identification of interleukin enhancer-binding factors 2 and 3 (ILF2 and ILF3) as autoantigens in canine immune-mediated rheumatic disease. The ILF2 autoantibodies were discovered in a small, selected canine cohort through the use of human protein arrays; a method not previously described in dogs. Subsequently, ILF3 autoantibodies were also identified in the same cohort. The results were validated with an independent method in a larger cohort of dogs. ILF2 and ILF3 autoantibodies were found exclusively, and at a high frequency, in dogs that showed a speckled pattern of antinuclear antibodies on immunofluorescence. ILF2 and ILF3 autoantibodies were also found at low frequency in human patients with SLE and Sjogren's syndrome. These autoantibodies have the potential to be used as diagnostic biomarkers for canine, and possibly also human, autoimmune disease.

  • 5.
    Dalin, Frida
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Dermatology and Venereology. Karolinska Univ Hosp, Karolinska Inst, Dept Med Solna, Stockholm, Sweden..
    Adamus, Grazyna
    Oregon Hlth & Sci Univ, Casey Eye Inst, Ocular Immunol Lab, Portland, OR 97201 USA..
    Yang, Sufang
    Oregon Hlth & Sci Univ, Casey Eye Inst, Ocular Immunol Lab, Portland, OR 97201 USA..
    Landgren, Eva
    Karolinska Univ Hosp, Karolinska Inst, Dept Med Solna, Stockholm, Sweden..
    Palle, Josefine
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health, Pediatrics.
    Hallgren, Åsa
    Karolinska Univ Hosp, Karolinska Inst, Dept Med Solna, Stockholm, Sweden..
    Frost, Britt-Marie
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health, Pediatrics.
    Hugosson, Therese
    Lund Univ, Dept Clin Sci, Ophthalmol, Lund, Sweden..
    Landegren, Nils
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Karolinska Univ Hosp, Karolinska Inst, Dept Med Solna, Stockholm, Sweden..
    Eriksson, Daniel
    Karolinska Univ Hosp, Karolinska Inst, Dept Med Solna, Stockholm, Sweden..
    Andreasson, Sten
    Lund Univ, Dept Clin Sci, Ophthalmol, Lund, Sweden..
    Tabbara, Khalid F.
    Ctr Eye, Riyadh, Saudi Arabia..
    Kämpe, Olle
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Karolinska Univ Hosp, Karolinska Inst, Dept Med Solna, Stockholm, Sweden..
    Alimohammadi, Mohammad
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Dermatology and Venereology. Karolinska Univ Hosp, Karolinska Inst, Dept Med Solna, Stockholm, Sweden..
    Aryl Hydrocarbon Receptor-Interacting Protein-Like 1 in Cancer-Associated Retinopathy2016In: Ophthalmology (Rochester, Minn.), ISSN 0161-6420, E-ISSN 1549-4713, Vol. 123, no 6, p. 1401-1404Article in journal (Other academic)
  • 6.
    Dalin, Frida
    et al.
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Dermatology and Venereology.
    Adamus, Grazyna
    Yang, Sufang
    Landgren, Eva
    Palle, Josefine
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health.
    Hallgren, Åsa
    Frost, Britt-Marie
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health.
    Hugosson, Therése
    Landegren, Nils
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
    Eriksson, Daniel
    Andreasson, Sten
    Tabbara, Khalid F.
    Kämpe, Olle
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity.
    Alimohammadi, Mohammad
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Dermatology and Venereology.
    Aryl Hydrocarbon Receptor-Interacting Protein-Like 1 in Cancer-Associated Retinopathy2016In: Ophthalmology (Rochester, Minn.), ISSN 0161-6420, E-ISSN 1549-4713, Vol. 123, no 6, p. 1401-1404Article in journal (Refereed)
  • 7.
    Eriksson, D.
    et al.
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.;Metab & Diabet Karolinska Univ Hosp, Dept Endocrinol, Stockholm, Sweden..
    Bianchi, Matteo
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Landegren, Nils
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden..
    Nordin, Jessika
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Dalin, Frida
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Dermatology and Venereology. Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden..
    Mathioudaki, Argyri
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Eriksson, G. N.
    Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden..
    Hultin-Rosenberg, Lina
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Dahlqvist, Johanna
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Zetterqvist, H.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Karlsson, Andreas
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Hallgren, Anna
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Infectious Diseases. Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden..
    Farias, F. H. G.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Murén, Eva
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Ahlgren, Kerstin M.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Lobell, Anna
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Andersson, G.
    Swedish Univ Agr Sci, Dept Anim Breeding & Genet, Uppsala, Sweden..
    Tandre, Karolina
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Dahlqvist, S. R.
    Umea Univ, Dept Publ Hlth & Clin Med, Umea, Sweden..
    Soderkvist, P.
    Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden..
    Rönnblom, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Hulting, A. -L
    Wahlberg, J.
    Linkoping Univ, Dept Endocrinol, Dept Med & Hlth Sci, Dept Clin & Expt Med, Linkoping, Sweden..
    Ekwall, O.
    Univ Gothenburg, Sahlgrenska Acad, Dept Pediat, Inst Clin Sci, Gothenburg, Sweden.;Univ Gothenburg, Dept Rheumatol & Inflammat Res, Inst Med, Sahlgrenska Acad, Gothenburg, Sweden..
    Dahlqvist, P.
    Umea Univ, Dept Publ Hlth & Clin Med, Umea, Sweden..
    Meadows, Jennifer R. S.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Bensing, S.
    Metab & Diabet Karolinska Univ Hosp, Dept Endocrinol, Stockholm, Sweden.;Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden..
    Lindblad-Toh, Kerstin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab. Broad Inst MIT & Harvard, Cambridge, MA USA..
    Kämpe, Olle
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.;Metab & Diabet Karolinska Univ Hosp, Dept Endocrinol, Stockholm, Sweden..
    Pielberg, Gerli R.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Genomics.
    Extended exome sequencing identifies BACH2 as a novel major risk locus for Addison's disease2016In: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 286, no 6, p. 595-608Article in journal (Refereed)
    Abstract [en]

    BackgroundAutoimmune disease is one of the leading causes of morbidity and mortality worldwide. In Addison's disease, the adrenal glands are targeted by destructive autoimmunity. Despite being the most common cause of primary adrenal failure, little is known about its aetiology. MethodsTo understand the genetic background of Addison's disease, we utilized the extensively characterized patients of the Swedish Addison Registry. We developed an extended exome capture array comprising a selected set of 1853 genes and their potential regulatory elements, for the purpose of sequencing 479 patients with Addison's disease and 1394 controls. ResultsWe identified BACH2 (rs62408233-A, OR = 2.01 (1.71-2.37), P = 1.66 x 10(-15), MAF 0.46/0.29 in cases/controls) as a novel gene associated with Addison's disease development. We also confirmed the previously known associations with the HLA complex. ConclusionWhilst BACH2 has been previously reported to associate with organ-specific autoimmune diseases co-inherited with Addison's disease, we have identified BACH2 as a major risk locus in Addison's disease, independent of concomitant autoimmune diseases. Our results may enable future research towards preventive disease treatment.

  • 8.
    Eriksson, Daniel
    et al.
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden;Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden.
    Bacchetta, Rosa
    Stanford Univ, Dept Pediat, Sch Med, Div Stem Cell Transplantat & Regenerat Med, Stanford, CA 94305 USA.
    Gunnarsson, Hörður Ingi
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    Chan, Alice
    Univ Calif San Francisco, Dept Pediat, San Francisco, CA USA.
    Barzaghi, Federica
    IRCCS San Raffaele Sci Inst, San Raffaele Telethon Inst Gene Therapy, Pediat Immunohematol & Bone Marrow Transplantat U, Milan, Italy.
    Ehl, Stephan
    Univ Freiburg, Freiburg Univ Hosp, Ctr Chron Immunodeficiency, Fac Med, Freiburg, Germany.
    Hallgren, Åsa
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    van Gool, Frederic
    Univ Calif San Francisco, Ctr Diabet, San Francisco, CA 94143 USA.
    Sardh, Fabian
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    Lundqvist, Christina
    Univ Gothenburg, Sahlgrenska Acad, Inst Med, Dept Rheumatol & Inflammat Res, Gothenburg, Sweden.
    Laakso, Saila M.
    Univ Helsinki, Childrens Hosp, Helsinki, Finland;Helsinki Univ Hosp, Helsinki, Finland.
    Rönnblom, Anders
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Gastroenterology/Hepatology.
    Ekwall, Olov
    Univ Gothenburg, Sahlgrenska Acad, Inst Med, Dept Rheumatol & Inflammat Res, Gothenburg, Sweden;Univ Gothenburg, Sahlgrenska Acad, Inst Clin Sci, Dept Pediat, Gothenburg, Sweden.
    Mäkitie, Outi
    Univ Helsinki, Childrens Hosp, Helsinki, Finland;Helsinki Univ Hosp, Helsinki, Finland;Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden;Karolinska Univ Hosp, Dept Clin Genet, Stockholm, Sweden;Folkhalsan Inst Genet, Helsinki, Finland;Univ Helsinki, Helsinki, Finland.
    Bensing, Sophie
    Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
    Husebye, Eystein S.
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden;Univ Bergen, Dept Clin Sci, Bergen, Norway;Haukeland Hosp, Dept Med, Bergen, Norway;KG Jebsen Ctr Autoimmune Disorders, Bergen, Norway.
    Anderson, Mark
    Univ Calif San Francisco, Ctr Diabet, San Francisco, CA 94143 USA.
    Kämpe, Olle
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden;Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden;KG Jebsen Ctr Autoimmune Disorders, Bergen, Norway.
    Landegren, Nils
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    The autoimmune targets in IPEX are dominated by gut epithelial proteins2019In: Journal of Allergy and Clinical Immunology, ISSN 0091-6749, E-ISSN 1097-6825, Vol. 144, no 1, p. 327-330Article in journal (Other academic)
  • 9.
    Eriksson, Daniel
    et al.
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden;Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden.
    Bianchi, Matteo
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Landegren, Nils
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    Dalin, Frida
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Dermatology and Venereology. Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    Skov, Jakob
    Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
    Hultin-Rosenberg, Lina
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Mathioudaki, Argyri
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Nordin, Jessika
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Hallgren, Asa
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    Andersson, Goran
    Swedish Univ Agr Sci, Dept Anim Breeding & Genet, Uppsala, Sweden.
    Tandre, Karolina
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Dahlqvist, Solbritt Rantapaa
    Umea Univ, Dept Publ Hlth & Clin Med, Umea, Sweden.
    Soderkvist, Peter
    Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden.
    Rönnblom, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Hulting, Anna-Lena
    Wahlberg, Jeanette
    Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden;Linkoping Univ, Dept Endocrinol, Linkoping, Sweden;Linkoping Univ, Dept Med & Hlth Sci, Linkoping, Sweden.
    Dahlqvist, Per
    Umea Univ, Dept Publ Hlth & Clin Med, Umea, Sweden.
    Ekwall, Olov
    Univ Gothenburg, Sahlgrenska Acad, Inst Clin Sci, Dept Pediat, Gothenburg, Sweden;Univ Gothenburg, Sahlgrenska Acad, Inst Med, Dept Rheumatol & Inflammat Res, Gothenburg, Sweden.
    Meadows, Jennifer
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Lindblad-Toh, Kerstin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab. Broad Inst MIT & Harvard, Cambridge, MA USA.
    Bensing, Sophie
    Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden;Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
    Pielberg, Gerli
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Kampe, Olle
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden;Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden;KG Jebsen Ctr Autoimmune Dis, Bergen, Norway.
    Common genetic variation in the autoimmune regulator (AIRE) locus is associated with autoimmune Addison's disease in Sweden2018In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, article id 8395Article in journal (Refereed)
    Abstract [en]

    Autoimmune Addison's disease (AAD) is the predominating cause of primary adrenal failure. Despite its high heritability, the rarity of disease has long made candidate-gene studies the only feasible methodology for genetic studies. Here we conducted a comprehensive reinvestigation of suggested AAD risk loci and more than 1800 candidate genes with associated regulatory elements in 479 patients with AAD and 2394 controls. Our analysis enabled us to replicate many risk variants, but several other previously suggested risk variants failed confirmation. By exploring the full set of 1800 candidate genes, we further identified common variation in the autoimmune regulator (AIRE) as a novel risk locus associated to sporadic AAD in our study. Our findings not only confirm that multiple loci are associated with disease risk, but also show to what extent the multiple risk loci jointly associate to AAD. In total, risk loci discovered to date only explain about 7% of variance in liability to AAD in our study population.

  • 10.
    Eriksson, Daniel
    et al.
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden; Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden.
    Dalin, Frida
    Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    Eriksson, Gabriel Nordling
    Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
    Landegren, Nils
    Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    Bianchi, Matteo
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Hallgren, Åsa
    Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden.
    Dahlqvist, Per
    Umeå Univ, Dept Publ Hlth & Clin Med, Umeå, Sweden.
    Wahlberg, Jeanette
    Linköping Univ, Dept Endocrinol, Linköping, Sweden; Linköping Univ, Dept Med & Hlth Sci, Linköping, Sweden; Linköping Univ, Dept Clin & Expt Med, Linköping, Sweden.
    Ekwall, Olov
    Univ Gothenburg, Dept Pediat, Inst Clin Sci, Sahlgrenska Acad, Gothenburg, Sweden; Univ Gothenburg, Dept Rheumatol & Inflammat Res, Inst Med, Sahlgrenska Acad, Gothenburg, Sweden.
    Winqvist, Ola
    Karolinska Inst, Dept Med Solna, Stockholm, Sweden.
    Catrina, Sergiu-Bogdan
    Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
    Rönnelid, Johan
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Clinical Immunology.
    Hulting, Anna-Lena
    Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
    Lindblad-Toh, Kerstin
    Uppsala University, Science for Life Laboratory, SciLifeLab.
    Alimohammad, Mohammad
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Dermatology and Venereology.
    Husebye, Eystein S
    Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden; Univ Bergen, Dept Clin Sci, Bergen, Norway; Univ Bergen, Dept Med, Bergen, Norway; KG Jebsen Ctr Autoimmune Disorders, Bergen, Norway.
    Knappskog, Per Morten
    Univ Bergen, Dept Clin Sci, Bergen, Norway; Haukeland Hosp, Ctr Med Genet & Mol Med, Bergen, Norway.
    Pielberg, Gerli Rosengren
    Uppsala University, Science for Life Laboratory, SciLifeLab.
    Bensing, Sophie
    Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden; Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden .
    Kämpe, Olle
    Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, Ctr Mol Med, Stockholm, Sweden; Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden; KG Jebsen Ctr Autoimmune Disorders, Bergen, Norway.
    Cytokine Autoantibody Screening in the Swedish Addison Registry Identifies Patients With Undiagnosed APS12018In: Journal of Clinical Endocrinology and Metabolism, ISSN 0021-972X, E-ISSN 1945-7197, Vol. 103, no 1, p. 179-186Article in journal (Refereed)
    Abstract [en]

    Context: Autoimmune polyendocrine syndrome type 1 (APS1) is a monogenic disorder that features autoimmune Addison disease as a major component. Although APS1 accounts for only a small fraction of all patients with Addison disease, early identification of these individuals is vital to prevent the potentially lethal complications of APS1.

    Objective: To determine whether available serological and genetic markers are valuable screening tools for the identification of APS1 among patients diagnosed with Addison disease.

    Design: We systematically screened 677 patients with Addison disease enrolled in the Swedish Addison Registry for autoantibodies against interleukin-22 and interferon-α4. Autoantibody-positive patients were investigated for clinical manifestations of APS1, additional APS1-specific autoantibodies, and DNA sequence and copy number variations of AIRE.

    Results: In total, 17 patients (2.5%) displayed autoantibodies against interleukin-22 and/or interferon-α4, of which nine were known APS1 cases. Four patients previously undiagnosed with APS1 fulfilled clinical, genetic, and serological criteria. Hence, we identified four patients with undiagnosed APS1 with this screening procedure.

    Conclusion: We propose that patients with Addison disease should be routinely screened for cytokine autoantibodies. Clinical or serological support for APS1 should warrant DNA sequencing and copy number analysis of AIRE to enable early diagnosis and prevention of lethal complications.

  • 11. Landegren, Nils
    Autoantibodies Targeting a Collecting Duct-specific Water Channel in Tubulointerstitial NephritisManuscript (preprint) (Other academic)
  • 12.
    Landegren, Nils
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity.
    Biomarker Discovery in Tissue-specific Autoimmune Disease2015Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Autoimmune diseases encompass a diverse group of disorders that collectively affect 5% of the population. Despite large clinical variability, autoimmune disorders share a common etiology in that they all develop from immune responses against self. T-cell receptors and antibodies recognize distinct self-molecules and direct destructive effector mechanisms to the target organs. Characterization of autoimmune targets can help in the understanding autoimmune disease features and is of additional importance for subsequent use in clinical diagnosis.

    Rare monogenic disorder can provide an access to the study and understanding of mechanisms underlying common and more complex diseases. Autoimmune polyendocrine syndrome type 1 (APS1) is an autosomal recessive disorder caused by mutations in the AIRE gene, and is a valuable model of tissue-specific autoimmune disease. APS1 patients develop multiple autoimmune disease manifestations and display autoantibodies against the affected tissues.

    Recent development in protein array technology has opened a novel avenue for explorative biomarker studies in autoimmune disorders. Present-day protein arrays contain many thousands of full-length human proteins and enable autoantibody screens at the proteome-scale.

    In the current work I have utilized proteome arrays to perform a comprehensive study of autoimmune targets in APS1. Survey of established autoantigens revealed highly reliable detection of autoantibodies, and by exploring the full panel of 9000 proteins we further identified three novel, major autoantigens. Our findings revealed a marked enrichment for tissue-specific immune targets and further suggest that only a very limited portion of the proteome becomes targeted by the immune system in APS1. This work identifies prostatic transglutaminase 4 as novel male-specific autoantigen. In the mouse model of APS1 we could link TGM4 immunity with a tissue-destructive prostatitis, a compromised prostatic secretion of TGM4 and with defect in the establishment of central immune tolerance for TGM4. Our findings suggest prostate autoimmunity is a major manifestation in male APS1 patients with potential role in development of subfertility. In this doctoral work we also report on collecting duct autoantibodies in APS1 patients with interstitial nephritis and on the identification of aquaporin 2 as a collecting duct autoantigen. Collectively, the present investigations provide an overview-perspective on the autoimmune target repertoire in APS1 and identify novel autoimmune manifestations of the syndrome.

    List of papers
    1. Proteome-wide survey of the autoimmune target repertoire in autoimmune polyendocrine syndrome type 1
    Open this publication in new window or tab >>Proteome-wide survey of the autoimmune target repertoire in autoimmune polyendocrine syndrome type 1
    Show others...
    2016 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, article id 20104Article in journal (Refereed) Published
    Abstract [en]

    Autoimmune polyendocrine syndrome type 1 (APS1) is a monogenic disorder that features multiple autoimmune disease manifestations. It is caused by mutations in the Autoimmune regulator (AIRE) gene, which promote thymic display of thousands of peripheral tissue antigens in a process critical for establishing central immune tolerance. We here used proteome arrays to perform a comprehensive study of autoimmune targets in APS1. Interrogation of established autoantigens revealed highly reliable detection of autoantibodies, and by exploring the full panel of more than 9000 proteins we further identified MAGEB2 and PDILT as novel major autoantigens in APS1. Our proteome-wide assessment revealed a marked enrichment for tissue-specific immune targets, mirroring AIRE's selectiveness for this category of genes. Our findings also suggest that only a very limited portion of the proteome becomes targeted by the immune system in APS1, which contrasts the broad defect of thymic presentation associated with AIRE-deficiency and raises novel questions what other factors are needed for break of tolerance.

    Keywords
    autoimmune
    National Category
    Immunology in the medical area
    Identifiers
    urn:nbn:se:uu:diva-276128 (URN)10.1038/srep20104 (DOI)000368996700001 ()26830021 (PubMedID)
    Funder
    Swedish Research CouncilSwedish Research Council FormasTorsten Söderbergs stiftelseRagnar Söderbergs stiftelseNovo Nordisk
    Available from: 2016-02-09 Created: 2016-02-09 Last updated: 2018-01-10Bibliographically approved
    2. Transglutaminase 4 as a prostate autoantigen in male subfertility
    Open this publication in new window or tab >>Transglutaminase 4 as a prostate autoantigen in male subfertility
    Show others...
    2015 (English)In: Science Translational Medicine, ISSN 1946-6234, E-ISSN 1946-6242, Vol. 7, no 292, article id 292ra101Article in journal (Refereed) Published
    Abstract [en]

    Autoimmune polyendocrine syndrome type 1 (APS1), a monogenic disorder caused by AIRE gene mutations, features multiple autoimmune disease components. Infertility is common in both males and females with APS1. Although female infertility can be explained by autoimmune ovarian failure, the mechanisms underlying male infertility have remained poorly understood. We performed a proteome-wide autoantibody screen in APS1 patient sera to assess the autoimmune response against the male reproductive organs. By screening human protein arrays with male and female patient sera and by selecting for gender-imbalanced autoantibody signals, we identified transglutaminase 4 (TGM4) as a male-specific autoantigen. Notably, TGM4 is a prostatic secretory molecule with critical role in male reproduction. TGM4 autoantibodies were detected in most of the adult male APS1 patients but were absent in all the young males. Consecutive serum samples further revealed that TGM4 autoantibodies first presented during pubertal age and subsequent to prostate maturation. We assessed the animal model for APS1, the Aire-deficient mouse, and found spontaneous development of TGM4 autoantibodies specifically in males. Aire-deficient mice failed to present TGM4 in the thymus, consistent with a defect in central tolerance for TGM4. In the mouse, we further link TGM4 immunity with a destructive prostatitis and compromised secretion of TGM4. Collectively, our findings in APS1 patients and Aire-deficient mice reveal prostate autoimmunity as a major manifestation of APS1 with potential role in male subfertility.

    National Category
    Medical Biotechnology (with a focus on Cell Biology (including Stem Cell Biology), Molecular Biology, Microbiology, Biochemistry or Biopharmacy)
    Identifiers
    urn:nbn:se:uu:diva-258338 (URN)10.1126/scitranslmed.aaa9186 (DOI)000356390500008 ()26084804 (PubMedID)
    Funder
    Swedish Research CouncilSwedish Research Council Formas
    Available from: 2015-07-14 Created: 2015-07-13 Last updated: 2017-12-04Bibliographically approved
    3. Autoantibodies Targeting a Collecting Duct-specific Water Channel in Tubulointerstitial Nephritis
    Open this publication in new window or tab >>Autoantibodies Targeting a Collecting Duct-specific Water Channel in Tubulointerstitial Nephritis
    (English)Manuscript (preprint) (Other academic)
    National Category
    Health Sciences
    Identifiers
    urn:nbn:se:uu:diva-265273 (URN)
    Available from: 2015-10-26 Created: 2015-10-26 Last updated: 2016-01-13Bibliographically approved
  • 13.
    Landegren, Nils
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Karolinska Univ Hosp, Dept Med Solna, Stockholm, Sweden.
    Rosen, Lindsey B.
    NIAID, Lab Clin Immunol & Microbiol, NIH, 9000 Rockville Pike, Bethesda, MD 20892 USA.
    Freyhult, Eva
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cancer Pharmacology and Computational Medicine. Uppsala University, Science for Life Laboratory, SciLifeLab. Natl Bioinformat Infrastruct, Dept Med Sci, Uppsala, Sweden.
    Eriksson, Daniel
    Karolinska Inst, Karolinska Univ Hosp, Dept Med Solna, Stockholm, Sweden;Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden.
    Fall, Tove
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Molecular epidemiology.
    Smith, Gustav
    Lund Univ, Skane Univ Hosp, Dept Cardiol, Clin Sci, Lund, Sweden;MIT, Broad Inst Harvard, Program Med & Populat Genet, Cambridge, MA 02139 USA;Lund Univ, Ctr Diabet, Wallenberg Ctr Mol Med, Lund, Sweden.
    Ferre, Elise M. N.
    NIAID, Lab Clin Immunol & Microbiol, NIH, 9000 Rockville Pike, Bethesda, MD 20892 USA.
    Brodin, Petter
    Lund Univ, Skane Univ Hosp, Dept Cardiol, Clin Sci, Lund, Sweden;Karolinska Inst, Dept Womens & Childrens Hlth, Sci Life Lab, Stockholm, Sweden;Karolinska Univ Hosp, Dept Newborn Med, Stockholm, Sweden.
    Sharon, Donald
    Stanford Univ, Dept Genet, Sch Med, Stanford, CA 94305 USA.
    Snyder, Michael
    Lund Univ, Ctr Diabet, Wallenberg Ctr Mol Med, Lund, Sweden;Stanford Univ, Dept Genet, Sch Med, Stanford, CA 94305 USA.
    Lionakis, Michail
    NIAID, Lab Clin Immunol & Microbiol, NIH, 9000 Rockville Pike, Bethesda, MD 20892 USA.
    Anderson, Mark
    Univ Calif San Francisco, Ctr Diabet, San Francisco, CA 94143 USA.
    Kampe, Olle
    Karolinska Inst, Karolinska Univ Hosp, Dept Med Solna, Stockholm, Sweden;Karolinska Univ Hosp, Dept Endocrinol Metab & Diabet, Stockholm, Sweden;Univ Bergen, KG Jebsen Ctr Autoimmune Dis, Bergen, Norway.
    Comment on 'AIRE-deficient patients harbor unique high-affinity disease-ameliorating autoantibodies'2019In: eLIFE, E-ISSN 2050-084X, Vol. 8, article id e43578Article in journal (Other academic)
    Abstract [en]

    The AIRE gene plays a key role in the development of central immune tolerance by promoting thymic presentation of tissue-specific molecules. Patients with AIRE-deficiency develop multiple autoimmune manifestations and display autoantibodies against the affected tissues. In 2016 it was reported that: i) the spectrum of autoantibodies in patients with AIRE-deficiency is much broader than previously appreciated; ii) neutralizing autoantibodies to type I interferons (IFNs) could provide protection against type 1 diabetes in these patients (Meyer et al., 2016). We attempted to replicate these new findings using a similar experimental approach in an independent patient cohort, and found no evidence for either conclusion.

  • 14.
    Landegren, Nils
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Sharon, Donald
    Freyhult, Eva
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cancer Pharmacology and Computational Medicine.
    Hallgren, Åsa
    Uppsala University, Science for Life Laboratory, SciLifeLab.
    Eriksson, Daniel
    Uppsala University, Science for Life Laboratory, SciLifeLab.
    Edqvist, Per-Henrik
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Bensing, Sophie
    Wahlberg, Jeanette
    Nelson, Lawrence M
    Gustafsson, Jan
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health, Pediatrics.
    Husebye, Eystein S
    Anderson, Mark S
    Snyder, Michael
    Kämpe, Olle
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity.
    Proteome-wide survey of the autoimmune target repertoire in autoimmune polyendocrine syndrome type 12016In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, article id 20104Article in journal (Refereed)
    Abstract [en]

    Autoimmune polyendocrine syndrome type 1 (APS1) is a monogenic disorder that features multiple autoimmune disease manifestations. It is caused by mutations in the Autoimmune regulator (AIRE) gene, which promote thymic display of thousands of peripheral tissue antigens in a process critical for establishing central immune tolerance. We here used proteome arrays to perform a comprehensive study of autoimmune targets in APS1. Interrogation of established autoantigens revealed highly reliable detection of autoantibodies, and by exploring the full panel of more than 9000 proteins we further identified MAGEB2 and PDILT as novel major autoantigens in APS1. Our proteome-wide assessment revealed a marked enrichment for tissue-specific immune targets, mirroring AIRE's selectiveness for this category of genes. Our findings also suggest that only a very limited portion of the proteome becomes targeted by the immune system in APS1, which contrasts the broad defect of thymic presentation associated with AIRE-deficiency and raises novel questions what other factors are needed for break of tolerance.

  • 15.
    Landegren, Nils
    et al.
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity.
    Sharon, Donald
    Shum, Anthony K.
    Khan, Imran S.
    Fasano, Kayla J.
    Hallgren, Åsa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Kampf, Caroline
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology.
    Freyhult, Eva
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cancer Pharmacology and Computational Medicine. Uppsala University, Science for Life Laboratory, SciLifeLab.
    Ardesjo-Lundgren, Brita
    Alimohammadi, Mohammad
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Dermatology and Venereology.
    Rathsman, Sandra
    Ludvigsson, Jonas F.
    Lundh, Dan
    Motrich, Ruben
    Rivero, Virginia
    Fong, Lawrence
    Giwercman, Aleksander
    Gustafsson, Jan
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health, Pediatrics.
    Perheentupa, Jaakko
    Husebye, Eystein S.
    Anderson, Mark S.
    Snyder, Michael
    Kämpe, Olle
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity.
    Transglutaminase 4 as a prostate autoantigen in male subfertility2015In: Science Translational Medicine, ISSN 1946-6234, E-ISSN 1946-6242, Vol. 7, no 292, article id 292ra101Article in journal (Refereed)
    Abstract [en]

    Autoimmune polyendocrine syndrome type 1 (APS1), a monogenic disorder caused by AIRE gene mutations, features multiple autoimmune disease components. Infertility is common in both males and females with APS1. Although female infertility can be explained by autoimmune ovarian failure, the mechanisms underlying male infertility have remained poorly understood. We performed a proteome-wide autoantibody screen in APS1 patient sera to assess the autoimmune response against the male reproductive organs. By screening human protein arrays with male and female patient sera and by selecting for gender-imbalanced autoantibody signals, we identified transglutaminase 4 (TGM4) as a male-specific autoantigen. Notably, TGM4 is a prostatic secretory molecule with critical role in male reproduction. TGM4 autoantibodies were detected in most of the adult male APS1 patients but were absent in all the young males. Consecutive serum samples further revealed that TGM4 autoantibodies first presented during pubertal age and subsequent to prostate maturation. We assessed the animal model for APS1, the Aire-deficient mouse, and found spontaneous development of TGM4 autoantibodies specifically in males. Aire-deficient mice failed to present TGM4 in the thymus, consistent with a defect in central tolerance for TGM4. In the mouse, we further link TGM4 immunity with a destructive prostatitis and compromised secretion of TGM4. Collectively, our findings in APS1 patients and Aire-deficient mice reveal prostate autoimmunity as a major manifestation of APS1 with potential role in male subfertility.

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