A functional map of genomic HIF1α-DNA complexes in the eye lens revealed through multiomics analysis

Autor: Joshua Disatham, Lisa Brennan, Daniel Chauss, Jason Kantorow, Behdad Afzali, Marc Kantorow
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: BMC Genomics, Vol 22, Iss 1, Pp 1-20 (2021)
Druh dokumentu: article
ISSN: 1471-2164
DOI: 10.1186/s12864-021-07795-9
Popis: Abstract Background During eye lens development the embryonic vasculature regresses leaving the lens without a direct oxygen source. Both embryonically and throughout adult life, the lens contains a decreasing oxygen gradient from the surface to the core that parallels the natural differentiation of immature surface epithelial cells into mature core transparent fiber cells. These properties of the lens suggest a potential role for hypoxia and the master regulator of the hypoxic response, hypoxia-inducible transcription factor 1 (HIF1), in the regulation of genes required for lens fiber cell differentiation, structure and transparency. Here, we employed a multiomics approach combining CUT&RUN, RNA-seq and ATACseq analysis to establish the genomic complement of lens HIF1α binding sites, genes activated or repressed by HIF1α and the chromatin states of HIF1α-regulated genes. Results CUT&RUN analysis revealed 8375 HIF1α-DNA binding complexes in the chick lens genome. One thousand one hundred ninety HIF1α-DNA binding complexes were significantly clustered within chromatin accessible regions (χ2 test p
Databáze: Directory of Open Access Journals
Nepřihlášeným uživatelům se plný text nezobrazuje