Cis-regulatory architecture of human ESC-derived hypothalamic neuron differentiation aids in variant-to-gene mapping of relevant complex traits

Nat Commun. 2021 Nov 19;12(1):6749. doi: 10.1038/s41467-021-27001-4.

Abstract

The hypothalamus regulates metabolic homeostasis by influencing behavior and endocrine systems. Given its role governing key traits, such as body weight and reproductive timing, understanding the genetic regulation of hypothalamic development and function could yield insights into disease pathogenesis. However, given its inaccessibility, studying human hypothalamic gene regulation has proven challenging. To address this gap, we generate a high-resolution chromatin architecture atlas of an established embryonic stem cell derived hypothalamic-like neuron model across three stages of in vitro differentiation. We profile accessible chromatin and identify physical contacts between gene promoters and putative cis-regulatory elements to characterize global regulatory landscape changes during hypothalamic differentiation. Next, we integrate these data with GWAS loci for various complex traits, identifying multiple candidate effector genes. Our results reveal common target genes for these traits, potentially affecting core developmental pathways. Our atlas will enable future efforts to determine hypothalamic mechanisms influencing disease susceptibility.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Differentiation / genetics
  • Cell Line
  • Chromosome Mapping
  • Gene Expression Regulation, Developmental*
  • Gene Regulatory Networks*
  • Genome-Wide Association Study
  • Human Embryonic Stem Cells / physiology*
  • Humans
  • Hypothalamus / cytology
  • Hypothalamus / embryology*
  • Multifactorial Inheritance
  • Neurons / physiology*
  • RNA-Seq
  • Regulatory Elements, Transcriptional / genetics