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Cd14 SNPs regulate the innate immune response.

ABSTRACT: CD14 is a monocytic differentiation antigen that regulates innate immune responses to pathogens. Here, we show that murine Cd14 SNPs regulate the length of Cd14 mRNA and CD14 protein translation efficiency, and consequently the basal level of soluble CD14 (sCD14) and type I IFN production by murine macrophages. This has substantial downstream consequences for the innate immune response; the level of expression of at least 40 IFN-responsive murine genes was altered by this mechanism. We also observed that there was substantial variation in the length of human CD14 mRNAs and in their translation efficiency. sCD14 increased cytokine production by human dendritic cells (DCs), and sCD14-primed DCs augmented human CD4T cell proliferation. These findings may provide a mechanism for exploring the complex relationship between CD14 SNPs, serum sCD14 levels, and susceptibility to human infectious and allergic diseases.

SUBMITTER: Liu HH

PROVIDER: S-EPMC3341513 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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Cd14 SNPs regulate the innate immune response.

Liu Hong-Hsing HH Hu Yajing Y Zheng Ming M Suhoski Megan M MM Engleman Edgar G EG Dill David L DL Hudnall Matt M Wang Jianmei J Spolski Rosanne R Leonard Warren J WJ Peltz Gary G

Molecular immunology 20120323 2

CD14 is a monocytic differentiation antigen that regulates innate immune responses to pathogens. Here, we show that murine Cd14 SNPs regulate the length of Cd14 mRNA and CD14 protein translation efficiency, and consequently the basal level of soluble CD14 (sCD14) and type I IFN production by murine macrophages. This has substantial downstream consequences for the innate immune response; the level of expression of at least 40 IFN-responsive murine genes was altered by this mechanism. We also obse ...[more]

PMID: 22445606

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