Influence of variations in CCL3L1 and CCR5 on tuberculosis in a northwestern Colombian population

J Infect Dis. 2011 Jun 1;203(11):1590-4. doi: 10.1093/infdis/jir145.

Abstract

We investigated the association of polymorphisms in CCR5, the major human immunodeficiency virus (HIV)-1 coreceptor, and copy number of its potent ligand CCL3L1 with tuberculosis in 298 individuals from Colombia. The CCR5-HHD haplotype, a known genetic determinant of increased susceptibility to HIV-AIDS, and a high copy number of CCL3L1, a known genetic determinant of enhanced CCL3/CCL3L1 chemokine expression, each associated with presence of tuberculosis. Furthermore, CCR5-HHD was associated with higher CCR5 gene and surface expression. These results substantiate the strong link between the pro-inflammatory effects of CCR5 and its ligands with active tuberculosis and suggest that chemokine-chemokine receptor genetic determinants may influence tuberculosis in addition to HIV/AIDS.

Publication types

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

MeSH terms

  • Adult
  • Case-Control Studies
  • Chemokines, CC / genetics*
  • Colombia / epidemiology
  • Female
  • Gene Dosage
  • Haplotypes
  • Humans
  • Linkage Disequilibrium
  • Logistic Models
  • Male
  • Middle Aged
  • Polymorphism, Genetic
  • Receptors, CCR5 / genetics*
  • Tuberculosis / epidemiology
  • Tuberculosis / genetics*

Substances

  • CCL3L1 protein, human
  • Chemokines, CC
  • Receptors, CCR5