Abundant binary promoter switches in lineage-determining transcription factors indicate a digital component of cell fate determination

Cell Rep. 2023 Nov 28;42(11):113454. doi: 10.1016/j.celrep.2023.113454. Epub 2023 Nov 16.

Abstract

Previous studies of the murine Ly49 and human KIR gene clusters implicated competing sense and antisense promoters in the control of variegated gene expression. In the current study, an examination of transcription factor genes defines an abundance of convergent and divergent sense/antisense promoter pairs, suggesting that competing promoters may control cell fate determination. Differentiation of CD34+ hematopoietic progenitors in vitro shows that cells with GATA1 antisense transcription have enhanced GATA2 transcription and a mast cell phenotype, whereas cells with GATA2 antisense transcription have increased GATA1 transcripts and an erythroblast phenotype. Detailed analyses of the AHR and RORC genes demonstrate the ability of competing promoters to act as binary switches and the association of antisense transcription with an immature/progenitor cell phenotype. These data indicate that alternative cell fates generated by promoter competition in lineage-determining transcription factors contribute to the programming of cell differentiation.

Keywords: AHR; CP: Molecular biology; CP: Stem cell research; GATA1; GATA2; RORC; antisense transcription; cell differentiation; divergent/convergent transcription; lineage determining; transcription factors.

Publication types

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

MeSH terms

  • Animals
  • Cell Differentiation / genetics
  • GATA1 Transcription Factor* / metabolism
  • GATA2 Transcription Factor / genetics
  • GATA2 Transcription Factor / metabolism
  • Humans
  • Mice
  • Promoter Regions, Genetic / genetics
  • Transcription Factors* / genetics
  • Transcription Factors* / metabolism

Substances

  • Transcription Factors
  • GATA1 Transcription Factor
  • GATA2 Transcription Factor