Spatially clustered loci with multiple enhancers are frequent targets of HIV-1 integration

Nat Commun. 2019 Sep 6;10(1):4059. doi: 10.1038/s41467-019-12046-3.

Abstract

HIV-1 recurrently targets active genes and integrates in the proximity of the nuclear pore compartment in CD4+ T cells. However, the genomic features of these genes and the relevance of their transcriptional activity for HIV-1 integration have so far remained unclear. Here we show that recurrently targeted genes are proximal to super-enhancer genomic elements and that they cluster in specific spatial compartments of the T cell nucleus. We further show that these gene clusters acquire their location during the activation of T cells. The clustering of these genes along with their transcriptional activity are the major determinants of HIV-1 integration in T cells. Our results provide evidence of the relevance of the spatial compartmentalization of the genome for HIV-1 integration, thus further strengthening the role of nuclear architecture in viral infection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Base Sequence
  • CD4-Positive T-Lymphocytes / metabolism*
  • CD4-Positive T-Lymphocytes / virology
  • Cell Nucleus / genetics*
  • Cell Nucleus / metabolism
  • Cell Nucleus / virology
  • Chromatin / genetics
  • Chromatin / virology
  • Enhancer Elements, Genetic*
  • HIV Infections / genetics
  • HIV Infections / immunology
  • HIV Infections / virology
  • HIV-1 / genetics*
  • HIV-1 / physiology
  • Humans
  • Nuclear Pore / genetics
  • Nuclear Pore / virology
  • Promoter Regions, Genetic / genetics
  • Transcription, Genetic
  • Virus Integration / genetics*

Substances

  • Chromatin