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Science. 1993 Apr 23;260(5107):547-9.

Development of TH1 CD4+ T cells through IL-12 produced by Listeria-induced macrophages.

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  • 1Department of Pathology, Washington University School of Medicine, St. Louis, MO 63110.

Abstract

Development of the appropriate CD4+ T helper (TH) subset during an immune response is important for disease resolution. With the use of naïve, ovalbumin-specific alpha beta T cell receptor transgenic T cell, it was found that heat-killed Listeria monocytogenes induced TH1 development in vitro through macrophage production of interleukin-12 (IL-12). Moreover, inhibition of macrophage production of IL-12 may explain the ability of IL-10 to suppress TH1 development. Murine immune responses to L. monocytogenes in vivo are of the appropriate TH1 phenotype. Therefore, this regulatory pathway may have evolved to enable innate immune cells, through interactions with microbial pathogens, to direct development of specific immunity toward the appropriate TH phenotype.

PMID:
8097338
[PubMed - indexed for MEDLINE]
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