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Subsets with restricted immunoglobulin gene rearrangement features indicate a role for antigen selection in the development of chronic lymphocytic leukemia.
Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Genetics and Pathology.
Department of Oncology, Radiology and Clinical Immunology. Enheten för onkologi. (Lymfom-GE)
Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Genetics and Pathology. (Lymfom-GE)
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2004 (English)In: Blood, ISSN 0006-4971, Vol. 104, no 9, 2879-85 p.Article in journal (Refereed) Published
Abstract [en]

Pseudohypoaldosteronism type I (PHA1) is a condition associated with salt wasting leading to dehydration, hypotension, hyperkalemia, and metabolic acidosis. Sporadic cases and two familial forms, one autosomal dominant and one autosomal recessive form, have been described. The autosomal dominant or sporadic form manifests milder salt wasting that remits with age. Mutations in the gene encoding the mineralocorticoid receptor (MR) have been identified in patients with the autosomal dominant inheritance. However, recent studies suggest that the autosomal dominant and sporadic forms are genetically heterogeneous and that additional genes might be involved. We report on the study of 15 members of a Swedish five-generation family with the autosomal dominant form of PHA1. Interestingly, neuropathy was found in two of five affected individuals. A novel heterozygous nonsense mutation C436X in exon 2 was identified in the index patient by linkage analysis, PCR, and direct sequencing of the MR gene. Analysis of the family demonstrated that the mutation segregated with PHA1 in the family. It is unclear whether the neuropathy is associated with the mutation found. Our results together with previously published data suggest that loss-of-function mutations of the MR gene located at 4q31.1, commonly are associated with the autosomal dominant form of PHA1.

Place, publisher, year, edition, pages
2004. Vol. 104, no 9, 2879-85 p.
Keyword [en]
Adult, Aged, Aged; 80 and over, Amino Acid Sequence, B-Lymphocyte Subsets/classification/immunology/*pathology, Complementarity Determining Regions/genetics, Epitopes; B-Lymphocyte/*immunology, Female, Gene Rearrangement; B-Lymphocyte/*immunology, Gene Rearrangement; B-Lymphocyte; Heavy Chain/genetics/immunology, Gene Rearrangement; B-Lymphocyte; Light Chain/genetics/immunology, Humans, Leukemia; B-Cell; Chronic/etiology/*immunology, Male, Middle Aged, Receptors; Antigen; B-Cell/genetics/immunology, Research Support; Non-U.S. Gov't, Sequence Alignment
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Cancer and Oncology
Identifiers
URN: urn:nbn:se:uu:diva-70015PubMedID: 15217826OAI: oai:DiVA.org:uu-70015DiVA: diva2:97926
Available from: 2005-08-18 Created: 2005-08-18 Last updated: 2011-01-12

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Tobin, GerardThunberg, UlfKarlsson, KarinMurray, FionaLaurell, AnnaEnblad, GunillaSundström, ChristerSöderberg, OlaRosenquist, Richard

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Tobin, GerardThunberg, UlfKarlsson, KarinMurray, FionaLaurell, AnnaEnblad, GunillaSundström, ChristerSöderberg, OlaRosenquist, Richard
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Department of Genetics and PathologyDepartment of Oncology, Radiology and Clinical Immunology
Cancer and Oncology

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