Human Gene Set: KIM_BIPOLAR_DISORDER_OLIGODENDROCYTE_DENSITY_CORR_DN


Standard name KIM_BIPOLAR_DISORDER_OLIGODENDROCYTE_DENSITY_CORR_DN
Systematic name M2109
Brief description Genes whose expression significantly and negatively correlated with oligodendrocyte density in layer VI of BA9 brain region in patients with bipolar disorder.
Full description or abstract Cytoarchitectural abnormalities have been described in the prefrontal cortex of subjects with schizophrenia, bipolar disorder and depression. However, little is known about the gene expression profiles associated with these abnormalities. Genome-wide expression profiling technology provides an unbiased approach to identifying candidate genes and biological processes that may be associated with complex biological traits such as cytoarchitecture. In this study, we explored expression profiles associated with the abnormalities by using publicly available microarray metadata and cytoarchitectural data from post-mortem samples of the frontal cortex from 54 subjects (schizophrenia, n=14; bipolar disorder, n=13; depression, n=12 and controls n=15). Correlation analysis between genome-wide expression levels and cytoarchitectural traits revealed that 818 genes were significantly correlated with a decrease in the number of perineuronal oligodendrocytes across all subjects. A total of 600 genes were significantly correlated with a decrease in density of calbindin-positive interneurons across all subjects. Multiple biological processes including cellular metabolism, central nervous system development, cell motility and programmed cell death were significantly overrepresented in both correlated gene lists. These findings may provide novel insights into the molecular mechanisms that underlie the cytoarchitectural abnormalities of perineuronal oligodendrocytes and calbindin-containing GABAergic interneurons in the prefrontal cortex of the major psychiatric disorders.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 18762803   Authors: Kim S,Webster MJ
Exact source Table 2S: correlation coefficient < 0
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Source species Homo sapiens
Contributed by Jessica Robertson (MSigDB Team)
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identifier namespace		 Human_NCBI_Gene_ID
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