Epigenetic modulation of gene expression governs the brain's response to injury

详细信息    查看全文

• 作者：Roger P. Simon^a ; ^b ; ^{rsimon@msm.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：LPS ; lipopolysaccharide ; PcG ; polycomb group ; PRC ; polycomb repressive complex ; TLR ; toll-like receptor ; TrxG ; trithorax group
• 刊名：Neuroscience Letters
• 出版年：2016
• 出版时间：20 June 2016
• 年：2016
• 卷：625
• 期：Complete
• 页码：16-19
• 全文大小：742 K

文摘

Mild stress from ischemia, seizure, hypothermia, or infection can produce a transient neuroprotected state in the brain. In the neuroprotected state, the brain responds differently to a severe stress and sustains less injury. At the genomic level, the response of the neuroprotected brain to a severe stress is characterized by widespread differential regulation of genes with diverse functions. This reprogramming of gene expression observed in the neuroprotected brain in response to a stress is consistent with an epigenetic model of regulation mediated by changes in DNA methylation and histone modification. Here, we summarize our evolving understanding of the molecular basis for endogenous neuroprotection and review recent findings that implicate DNA methylation and protein mediators of histone modification as epigenetic regulators of the brain's response to injury.