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- W2026489741 abstract "Expression of the neuronal membrane glycoprotein M6a (GPM6A), the proteolipid protein (PLP/DM20) family member, is downregulated in the hippocampus of chronically stressed animals. Its neuroplastic function involves a role in neurite formation, filopodium outgrowth and synaptogenesis through an unknown mechanism. Disruptions in neuroplasticity mechanisms have been shown to play a significant part in the etiology of depression. Thus, the current investigation examined whether GPM6A expression is also altered in human depressed brain.Expression levels and coexpression patterns of GPM6A, GPM6B, and PLP1 (two other members of PLP/DM20 family) as well as of the neuroplasticity-related genes identified to associate with GPM6A were determined using quantitative polymerase chain reaction (qPCR) in postmortem samples from the hippocampus (n = 18) and the prefrontal cortex (PFC) (n = 25) of depressed suicide victims and compared with control subjects (hippocampus n = 18; PFC n = 25). Neuroplasticity-related proteins that form complexes with GPM6A were identified by coimmunoprecipitation technique followed by mass spectrometry.Results indicated transcriptional downregulation of GPM6A and GPM6B in the hippocampus of depressed suicides. The expression level of calcium/calmodulin-dependent protein kinase II alpha (CAMK2A) and coronin1A (CORO1A) was also significantly decreased. Subsequent analysis of coexpression patterns demonstrated coordinated gene expression in the hippocampus and in the PFC indicating that the function of these genes might be coregulated in the human brain. However, in the brain of depressed suicides this coordinated response was disrupted.Disruption of coordinated gene expression as well as abnormalities in GPM6A and GPM6B expression and expression of the components of GPM6A complexes were detected in the brain of depressed suicides." @default.
- W2026489741 created "2016-06-24" @default.
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- W2026489741 date "2015-07-01" @default.
- W2026489741 modified "2023-10-09" @default.
- W2026489741 title "Altered expression of neuroplasticity-related genes in the brain of depressed suicides" @default.
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- W2026489741 doi "https://doi.org/10.1016/j.neuroscience.2015.04.057" @default.
- W2026489741 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4457649" @default.
- W2026489741 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25934039" @default.
- W2026489741 hasPublicationYear "2015" @default.
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