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QKI6B mRNA levels are upregulated in schizophrenia and predict GFAP expression
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.ORCID iD: 0000-0003-3459-0451
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology. IBENS, Dept Biol, Paris, France..
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
Univ Gothenburg, Sahlgrenska Acad, Dept Psychiat & Neurochem, Inst Neurosci & Physiol, Gothenburg, Sweden.;Univ Oxford, John Radcliffe Hosp, Nuffield Dept Clin Neurosci, Dept Neuropathol, Oxford, England..
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2017 (English)In: Brain Research, ISSN 0006-8993, E-ISSN 1872-6240, Vol. 1669, 63-68 p.Article in journal (Refereed) Published
Abstract [en]

Schizophrenia is a highly heritable disorder with a heterogeneous symptomatology. Research increasingly indicates the importance of the crucial and often overlooked glial perturbations within schizophrenia. Within this study, we examined an isoform of quaking (a gene encoding an RNA-binding protein that is exclusively expressed in glial cells), known as QKI6B, and a prototypical astrocyte marker, glial fibrillary acidic protein (GFAP), postulated to be under the regulation of QKI. The expression levels of these genes were quantified across post-mortem brain samples from 55 schizophrenic individuals, and 55 healthy controls, using real-time PCR. We report, through an analysis of covariance (ANCOVA) model, an upregulation of both QKI6B, and GFAP in the prefrontal cortex of brain samples of schizophrenic individuals, as compared to control samples. Previous research has suggested that the QKI protein directly regulates the expression of several genes through interaction with a motif in the target's sequence, termed the Quaking Response Element (QRE). We therefore examined if QICI6B expression can predict the outcome of GFAP, and several oligodendrocyte-related genes, using a multiple linear regression approach. We found that QKI6B significantly predicts the expression of GFAP, but does not predict oligodendrocyte-related gene outcome, as previously seen with other QKI isoforms. (C) 2017 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 1669, 63-68 p.
Keyword [en]
Schizophrenia, Glia, Astrocytes, qPCR, ANCOVA, Regression
National Category
Neurosciences
Identifiers
URN: urn:nbn:se:uu:diva-334037DOI: 10.1016/j.brainres.2017.05.027ISI: 000406729700007PubMedID: 28552414OAI: oai:DiVA.org:uu-334037DiVA: diva2:1159277
Available from: 2017-11-22 Created: 2017-11-22 Last updated: 2017-11-22Bibliographically approved

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Farnsworth, B.Radomska, K.J.Jazin, E.Emilsson, L.S.

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