Expression of Duffy antigen receptor for chemokines (DARC) has no effect on HIV-1 acquisition or progression to AIDS in African Americans

Cell Host Microbe. 2009 May 8;5(5):411-3; author reply 418-9. doi: 10.1016/j.chom.2009.04.010.

Abstract

In Sub-Saharan Africa most individuals are homozygous for the DARC promoter mutation, -46T>C, abrogating DARC expression on erythrocytes. It was reported that -46C/C is associated with 40% increase in HIV-1 acquisition in a USA population and may account for 11% of HIV-1 burden in Africa. We determined -46T>C genotypes for HIV-1 infected and uninfected African Americans. We found no evidence that the DARC negative phenotype caused by -46C/C affects HIV infection or rates of progression to AIDS in people of African ancestry. The earlier result is likely due to population substructure that led to inflated associations with DARC -46C/C.

Publication types

  • Letter
  • Research Support, N.I.H., Extramural
  • Comment

MeSH terms

  • Black or African American / genetics*
  • Cohort Studies
  • Disease Progression*
  • Duffy Blood-Group System / genetics*
  • Duffy Blood-Group System / immunology
  • Gene Expression*
  • Genotype
  • HIV Infections / genetics*
  • HIV Infections / immunology
  • HIV Infections / pathology
  • HIV Infections / virology
  • HIV-1 / physiology*
  • Humans
  • Polymorphism, Single Nucleotide
  • Receptors, Cell Surface / genetics*
  • Receptors, Cell Surface / immunology

Substances

  • ACKR1 protein, human
  • Duffy Blood-Group System
  • Receptors, Cell Surface