The impact of caspase-12 on susceptibility to candidemia.

Journal Article

Candida is one of the leading causes of sepsis, and an effective host immune response to Candida critically depends on the cytokines IL-1β and IL-18, which need caspase-1 cleavage to become bioactive. Caspase-12 has been suggested to inhibit caspase-1 activation and has been implicated as a susceptibility factor for bacterial sepsis. In populations of African descent, CASPASE-12 is either functional or non-functional. Here, we have assessed the frequencies of both CASPASE-12 alleles in an African-American Candida sepsis patients cohort compared to uninfected patients with similar predisposing factors. African-American Candida sepsis patients (n = 93) and non-infected African-American patients (n = 88) were genotyped for the CASPASE-12 genotype. Serum cytokine concentrations of IL-6, IL-8, and IFNγ were measured in the serum of infected patients. Statistical comparisons were performed in order to assess the effect of the CASPASE-12 genotype on susceptibility to candidemia and on serum cytokine concentrations. Our findings demonstrate that CASPASE-12 does not influence the susceptibility to Candida sepsis, nor has any effect on the serum cytokine concentrations in Candida sepsis patients during the course of infection. Although the functional CASPASE-12 allele has been suggested to increase susceptibility to bacterial sepsis, this could not be confirmed in our larger cohort of fungal sepsis patients.

Full Text

Duke Authors

Cited Authors

  • Rosentul, DC; Plantinga, TS; Scott, WK; Alexander, BD; van de Geer, NMD; Perfect, JR; Kullberg, BJ; Johnson, MD; Netea, MG

Published Date

  • March 2012

Published In

Volume / Issue

  • 31 / 3

Start / End Page

  • 277 - 280

PubMed ID

  • 21706251

Electronic International Standard Serial Number (EISSN)

  • 1435-4373

Digital Object Identifier (DOI)

  • 10.1007/s10096-011-1307-x

Language

  • eng

Conference Location

  • Germany