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Epigenetic and genetic dissections of UV-induced global gene dysregulation in skin cells through multi-omics analyses

Yao Shen; Milda Stanislauskas; Gen Li; Deyou Zheng; Liang Liu

Title:
Epigenetic and genetic dissections of UV-induced global gene dysregulation in skin cells through multi-omics analyses
Author(s):
Shen, Yao
Stanislauskas, Milda
Li, Gen
Zheng, Deyou
Liu, Liang
Date:
Type:
Articles
Department(s):
Systems Biology
Dermatology
Biostatistics
Volume:
7
Persistent URL:
Book/Journal Title:
Scientific Reports
Abstract:
To elucidate the complex molecular mechanisms underlying the adverse effects UV radiation (UVR) on skin homeostasis, we performed multi-omics studies to characterize UV-induced genetic and epigenetic changes. Human keratinocytes from a single donor treated with or without UVR were analyzed by RNA-seq, exome-seq, and H3K27ac ChIP-seq at 4 h and 72 h following UVR. Compared to the relatively moderate mutagenic effects of UVR, acute UV exposure induced substantial epigenomic and transcriptomic alterations, illuminating a previously underappreciated role of epigenomic and transcriptomic instability in skin pathogenesis. Integration of the multi-omics data revealed that UVR-induced transcriptional dysregulation of a subset of genes was attributable to either genetic mutations or global redistribution of H3K27ac. H3K27ac redistribution further led to the formation of distinctive super enhancers in UV-irradiated cells. Our analysis also identified several new UV target genes, including CYP24A1, GJA5, SLAMF7 and ETV1, which were frequently dysregulated in human squamous cell carcinomas, highlighting their potential as new molecular targets for prevention or treatment of UVR-induced skin cancers. Taken together, our concurrent multi-omics analyses provide new mechanistic insights into the complex molecular networks underlying UV photobiological effects, which have important implications in understanding its impact on skin homeostasis and pathogenesis.
Subject(s):
Gene expression
Genetic regulation
Squamous cell carcinoma
Dermatology
Epigenetics
Publisher DOI:
https://doi.org/10.1038/srep42646
Item views
41
Metadata:
text | xml
Suggested Citation:
Yao Shen, Milda Stanislauskas, Gen Li, Deyou Zheng, Liang Liu, , Epigenetic and genetic dissections of UV-induced global gene dysregulation in skin cells through multi-omics analyses, Columbia University Academic Commons, .

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