Journal article

DOCK8 Drives Src-Dependent NK Cell Effector Function

Conor J Kearney, Stephin J Vervoort, Kelly M Ramsbottom, Andrew J Freeman, Jessica Michie, Jane Peake, Jean-Laurent Casanova, Capucine Picard, Stuart G Tangye, Cindy S Ma, Ricky W Johnstone, Katrina L Randall, Jane Oliaro

The Journal of Immunology | AMER ASSOC IMMUNOLOGISTS | Published : 2017

Abstract

Mutations in the dedicator of cytokinesis 8 (DOCK8) gene cause an autosomal recessive form of hyper-IgE syndrome, characterized by chronic immunodeficiency with persistent microbial infection and increased incidence of malignancy. These manifestations suggest a defect in cytotoxic lymphocyte function and immune surveillance. However, how DOCK8 regulates NK cell-driven immune responses remains unclear. In this article, we demonstrate that DOCK8 regulates NK cell cytotoxicity and cytokine production in response to target cell engagement or receptor ligation. Genetic ablation of DOCK8 in human NK cells attenuated cytokine transcription and secretion through inhibition of Src family kinase activ..

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