title: 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.
authors.affiliation: Department of Anesthesia, Stanford University School of Medicine, Stanford, CA 94305, USA.
authors.forename: Hong-Hsing
authors.initials: HH
authors.lastname: Liu
authors.forename: Yajing
authors.initials: Y
authors.lastname: Hu
authors.forename: Ming
authors.initials: M
authors.lastname: Zheng
authors.forename: Megan M
authors.initials: MM
authors.lastname: Suhoski
authors.forename: Edgar G
authors.initials: EG
authors.lastname: Engleman
authors.forename: David L
authors.initials: DL
authors.lastname: Dill
authors.forename: Matt
authors.initials: M
authors.lastname: Hudnall
authors.forename: Jianmei
authors.initials: J
authors.lastname: Wang
authors.forename: Rosanne
authors.initials: R
authors.lastname: Spolski
authors.forename: Warren J
authors.initials: WJ
authors.lastname: Leonard
authors.forename: Gary
authors.initials: G
authors.lastname: Peltz
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology; D015153:Blotting, Western; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D016207:Cytokines / Q000096:biosynthesis; D003713:Dendritic Cells / Q000276:immunology; D004797:Enzyme-Linked Immunosorbent Assay; D005786:Gene Expression Regulation / Q000235:genetics* / Q000276:immunology*; D006801:Humans; D007113:Immunity, Innate / Q000235:genetics* / Q000276:immunology; D018950:Lipopolysaccharide Receptors / Q000235:genetics*; D007959:Lymphocyte Culture Test, Mixed; D051379:Mice; D020411:Oligonucleotide Array Sequence Analysis; D020641:Polymorphism, Single Nucleotide; D060888:Real-Time Polymerase Chain Reaction; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D016207:Cytokines; D018950:Lipopolysaccharide Receptors