CD11c depletion severely disrupts Th2 induction and development in vivo

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Abstract

Although dendritic cells (DCs) are adept initiators of CD4+ T cell responses, their fundamental importance in this regard in Th2 settings remains to be demonstrated. We have used CD11c - diphtheria toxin (DTx) receptor mice to deplete CD11c+ cells during the priming stage of the CD4+ Th2 response against the parasitic helminth Schistosoma mansoni. DTx treatment significantly depleted CD11c+ DCs from all tissues tested, with 70-80% efficacy. Even this incomplete depletion resulted in dramatically impaired CD4+ T cell production of Th2 cytokines, altering the balance of the immune response and causing a shift toward IFN-γ production. In contrast, basophil depletion using Mar-1 antibody had no measurable effect on Th2 induction in this system. These data underline the vital role that CD11c+ antigen-presenting cells can play in orchestrating Th2 development against helminth infection in vivo, a response that is ordinarily balanced so as to prevent the potentially damaging production of inflammatory cytokines. © 2010 Phythian-Adams et al.

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APA

Phythian-Adams, A. T., Cook, P. C., Lundie, R. J., Jones, L. H., Smith, K. A., Barr, T. A., … MacDonald, A. S. (2010). CD11c depletion severely disrupts Th2 induction and development in vivo. Journal of Experimental Medicine, 207(10), 2089–2096. https://doi.org/10.1084/jem.20100734

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