期刊
PSYCHIATRY RESEARCH
卷 112, 期 1, 页码 51-57出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/S0165-1781(02)00191-9
关键词
glycogen synthase kinase-3; peripheral tissue; mental disorder; tissue specificity; schizophrenia
类别
Glycogen synthase kinase-3 (GSK-3) is a highly conserved serine/threonine protein kinase that is involved in the signal transduction cascades of multiple cellular processes. GSK-3 has two isoforms, designated alpha and beta. GSK-3beta protein levels and GSK-3 enzyme activity have been reported to be reduced by over 40% in postmortem frontal cortex of schizophrenic patients. GSK-3 is also present in peripheral tissue such as lymphocytes. In this study we aimed to find whether the reduction in brain GSK-3beta measures is reflected in peripheral tissue of schizophrenic patients. Fresh lymphocytes from schizophrenic patients showed no difference in GSK-3alpha and GSK-3beta mRNA levels, GSK-3beta protein levels, or total GSK-3 (alpha+beta) enzyme activity compared with findings in control subjects. In addition, lymphocyte-derived cell lines from schizophrenic patients did not differ in their GSK-3beta protein levels from levels in normal control subjects. The results rule out the use of lymphocyte GSK-3 as a marker for central GSK-3 abnormalities in schizophrenia. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
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