Developmental regulation and individual differences of neuronal H3K4me3 epigenomes in the prefrontal cortex
Authors
Cheung, IrisShulha, Hennady P.
Jiang, Yan
Matevossian, Anouch
Wang, Jie
Weng, Zhiping
Akbarian, Schahram
Student Authors
Yan JiangUMass Chan Affiliations
Program in Bioinformatics and Integrative BiologyDepartment of Biochemistry and Molecular Pharmacology
Department of Psychiatry
Document Type
Journal ArticlePublication Date
2010-04-28Keywords
Adolescent; Adult; Aged; Antigens, Nuclear; Cell Count; Child; Child, Preschool; Chromatin Assembly and Disassembly; *Epigenesis, Genetic; Gene Expression Profiling; *Gene Expression Regulation, Developmental; Genome; Histones; Humans; Infant; Lysine; Methylation; Middle Aged; Nerve Tissue Proteins; Neurons; Prefrontal Cortex; RNA, Messenger; Young AdultLife Sciences
Medicine and Health Sciences
Neuroscience and Neurobiology
Metadata
Show full item recordAbstract
Little is known about the regulation of neuronal and other cell-type specific epigenomes from the brain. Here, we map the genome-wide distribution of trimethylated histone H3K4 (H3K4me3), a mark associated with transcriptional regulation, in neuronal and nonneuronal nuclei collected from prefrontal cortex (PFC) of 11 individuals ranging in age from 0.5 to 69 years. Massively parallel sequencing identified 12,732-19,704 H3K4me3 enriched regions (peaks), the majority located proximal to (within 2 kb of) the transcription start site (TSS) of annotated genes. These included peaks shared by neurons in comparison with three control (lymphocyte) cell types, as well as peaks specific to individual subjects. We identified 6,213 genes that show highly enriched H3K4me3 in neurons versus control. At least 1,370 loci, including annotated genes and novel transcripts, were selectively tagged with H3K4me3 in neuronal but not in nonneuronal PFC chromatin. Our results reveal age-correlated neuronal epigenome reorganization, including decreased H3K4me3 at approximately 600 genes (many function in developmental processes) during the first year after birth. In comparison, the epigenome of aging (>60 years) PFC neurons showed less extensive changes, including increased H3K4me3 at 100 genes. These findings demonstrate that H3K4me3 in human PFC is highly regulated in a cell type- and subject-specific manner and highlight the importance of early childhood for developmentally regulated chromatin remodeling in prefrontal neurons.Source
Proc Natl Acad Sci U S A. 2010 May 11;107(19):8824-9. Epub 2010 Apr 26. Link to article on publisher's siteDOI
10.1073/pnas.1001702107Permanent Link to this Item
http://hdl.handle.net/20.500.14038/33148PubMed ID
20421462Related Resources
Link to Article in PubMedae974a485f413a2113503eed53cd6c53
10.1073/pnas.1001702107