4.6 Article

Altered gene expression of histone deacetylases in mood disorder patients

期刊

JOURNAL OF PSYCHIATRIC RESEARCH
卷 44, 期 5, 页码 263-270

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpsychires.2009.08.015

关键词

Major depression; Bipolar depression; Histone deacetylase; Leukocyte; Chromatin regulation; Gene expression

资金

  1. Japanese Ministry of Education, Culture, Sports, Science and Technology
  2. Japanese Ministry of Health, Labor and Welfare

向作者/读者索取更多资源

Chromatin remodeling such as changes in histone acetylation has been suggested to play an important role in the pathophysiology and treatment of mood disorders. In the present study, we investigated whether the expression of histone deacetylase (HDAC) genes are altered in mood disorder patients. We used quantitative real-time PCR to measure the mRNA levels of 11 HDACs (HDAC1-11) in peripheral white blood cells of major depressive disorder (MDD) and bipolar disorder (BPD) patients during depressive and remissive episodes and in the first-degree relatives of BPD patients. In addition, we investigated the effect of antidepressants and mood stabilizers on the mRNA levels of HDACs using mice. In MDD, the expression of HDAC2 and 5 mRNA was increased in a depressive state, but not in a remissive state, compared to controls. In BPD, the expression of HDAC4 mRNA was increased only in a depressive state, and the expression of HDAC6 and 8 was decreased in both depressive and remissive states compared to controls, whereas the first-degree relatives did not show any significant alteration in expression levels. Animal study showed that the expression of HDAC2 and 5 or HDAC4, 6 and 8 mRNAs in the mouse leukocytes were not affected by chronic treatment with antidepressants or mood stabilizers. Our data suggest that aberrant transcriptional regulation caused by the altered expression of HDACs is associated with the pathophysiology of mood disorders. (C) 2009 Elsevier Ltd. All rights reserved.

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