Title

Epigenetic-genetic chromatin footprinting identifies novel and subject-specific genes active in prefrontal cortex neurons

UMMS Affiliation

Department of Psychiatry; Program in Bioinformatics and Integrative Biology

Publication Date

2019-04-10

Document Type

Article

Disciplines

Amino Acids, Peptides, and Proteins | Biochemistry, Biophysics, and Structural Biology | Bioinformatics | Cell and Developmental Biology | Cells | Computational Biology | Genetic Phenomena | Integrative Biology | Neuroscience and Neurobiology | Systems Biology

Abstract

Human prefrontal cortex (PFC) is associated with broad individual variabilities in functions linked to personality, social behaviors, and cognitive functions. The phenotype variabilities associated with brain functions can be caused by genetic or epigenetic factors. The interactions between these factors in human subjects is, as of yet, poorly understood. The heterogeneity of cerebral tissue, consisting of neuronal and nonneuronal cells, complicates the comparative analysis of gene activities in brain specimens. To approach the underlying neurogenomic determinants, we performed a deep analysis of open chromatin-associated histone methylation in PFC neurons sorted from multiple human individuals in conjunction with whole-genome and transcriptome sequencing. Integrative analyses produced novel unannotated neuronal genes and revealed individual-specific chromatin "blueprints" of neurons that, in part, relate to genetic background. Surprisingly, we observed gender-dependent epigenetic signals, implying that gender may contribute to the chromatin variabilities in neurons. Finally, we found epigenetic, allele-specific activation of the testis-specific gene nucleoporin 210 like (NUP210L) in brain in some individuals, which we link to a genetic variant occurring in < 3% of the human population. Recently, the NUP210L locus has been associated with intelligence and mathematics ability. Our findings highlight the significance of epigenetic-genetic footprinting for exploring neurologic function in a subject-specific manner.

Keywords

ChIP-seq, H3K4me3, brain, histone

DOI of Published Version

10.1096/fj.201802646R

Source

FASEB J. 2019 Apr 10:fj201802646R. doi: 10.1096/fj.201802646R. [Epub ahead of print] Link to article on publisher's site

Journal/Book/Conference Title

FASEB journal : official publication of the Federation of American Societies for Experimental Biology

Comments

Full author list omitted for brevity. For the full list of authors, see article.

Related Resources

Link to Article in PubMed

PubMed ID

30970224

Share

COinS