Lymphoid fibrosis occurs in long-term nonprogressors and persists with antiretroviral therapy but may be reversible with curative interventions

J Infect Dis. 2015 Apr 1;211(7):1068-75. doi: 10.1093/infdis/jiu586. Epub 2014 Oct 24.

Abstract

Human immunodeficiency virus (HIV) replication causes lymphoid tissue (LT) fibrosis, which causes CD4(+) T-cell depletion. It is unknown whether people who spontaneously control HIV replication have LT fibrosis. We measured LT fibrosis and CD4(+) T cells in 25 HIV controllers, 10 noncontrollers, 45 HIV-positive individuals receiving therapy, and 10 HIV-negative individuals. Controllers had significant LT fibrosis and CD4(+) T-cell depletion, similar to noncontrollers, but the so-called Berlin patient (in whom HIV infection was cured) had near normal LT. Thus, LT fibrosis occurs in all HIV-infected subjects, and current therapy does not reverse it. Reversal of fibrosis during a curative intervention suggests that ongoing low-level virus production may maintain LT fibrosis.

Keywords: HIV; HIV controllers; fibrosis.

Publication types

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

MeSH terms

  • Adult
  • Anti-Retroviral Agents / therapeutic use*
  • Biopsy
  • CD4 Lymphocyte Count
  • CD4-Positive T-Lymphocytes / virology
  • Cohort Studies
  • Disease Progression
  • Female
  • Fibrosis
  • HIV Infections / complications*
  • HIV Infections / drug therapy
  • HIV Infections / pathology
  • HIV Infections / virology
  • HIV Long-Term Survivors
  • HIV-1 / drug effects
  • HIV-1 / physiology*
  • Humans
  • Longitudinal Studies
  • Lymphoid Tissue / pathology*
  • Male
  • Middle Aged
  • Rectum / pathology
  • Virus Replication

Substances

  • Anti-Retroviral Agents