The 32-base pair deletion of the chemokine receptor 5 gene (CCR5-Delta32) is not associated with primary sclerosing cholangitis in 363 Scandinavian patients

Tissue Antigens. 2006 Jul;68(1):78-81. doi: 10.1111/j.1399-0039.2006.00604.x.

Abstract

CCR5 is a chemokine receptor expressed on T-cells and macrophages. A 32-base pair deletion in the chemokine receptor 5 gene (CCR5-Delta32) leads to a non-functional receptor. Conflicting evidence exists whether this deletion is associated with primary sclerosing cholangitis (PSC). We genotyped the CCR5-Delta32 variant in 363 PSC patients and 366 controls. No significant increase in the Delta32 allele frequency was detected in the PSC patients compared to controls (12.7% vs 10.7% OR = 1.22, 95% CI [0.88, 1.68], P = 0.23). Survival analysis did not reveal any significant effects from CCR5-Delta32 genotypes on disease progression. Thus, in this study (power > 90%, given OR = 2, alpha = 0.05), we were unable to replicate previous findings and our results do not support an involvement of CCR5-Delta32 in either PSC susceptibility or progression.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alleles
  • Base Pairing
  • Case-Control Studies
  • Cholangitis, Sclerosing / etiology*
  • Confidence Intervals
  • Disease Progression
  • Female
  • Gene Deletion*
  • Gene Frequency
  • Genetic Predisposition to Disease
  • Humans
  • Male
  • Odds Ratio
  • Receptors, CCR5 / genetics*
  • Scandinavian and Nordic Countries / epidemiology

Substances

  • Receptors, CCR5