期刊
BIOLOGICAL PSYCHIATRY
卷 59, 期 5, 页码 434-439出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.biopsych.2005.07.041
关键词
LIM; PDZ; brain; expression; prefrontal; EMSA
Results of recent DNA microarray analyses of postmortem brains of patients with schizophrenia revealed that expression of the PDZ and LIM domain 5 gene (PDLIM5) is increased. In the present study, we examined whether polymorphisms in PDLIM5 are associated with schizophrenia. We screened for mutations in PDLIM5 in 24 Japanese patients with schizophrenia and evaluated the associations of the identified polymorphisms with schizophrenia in a Japanese case-control population (total samples, 278 schizophrenia patients and 462 control subjects). Expression of PDLIM5 was quantified by real-time quantitative polymerase chain reaction (PCR) in postmortem prefrontal cortex of 34 schizophrenia patients. Electrophoretic mobility shift assay (EMSA) was performed to examine whether a polymorphism influences nuclear protein binding. We identified 27 polymorphisms in PDLIM5 and found associations between polymorphisms (rs2433320 and rs2433322) in the 5' region of the gene and schizophrenia (p = .004). Real-time quantitative PCR revealed that these polymorphisms influenced gene expression (p = .007). An EMSA showed that the different tales of the rs2433320 polymorphism bound differently to nuclear proteins. These results suggest that PDLIM5 might play a role in genetic susceptibility to schizophrenia.
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