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Review
. 2015 Jun 17:6:316.
doi: 10.3389/fimmu.2015.00316. eCollection 2015.

Type II NKT Cells in Inflammation, Autoimmunity, Microbial Immunity, and Cancer

Idania Marrero  1 , Randle Ware  1 , Vipin Kumar  1
Affiliations
Review

Type II NKT Cells in Inflammation, Autoimmunity, Microbial Immunity, and Cancer

Idania Marrero et al. Front Immunol. .

Abstract

Natural killer T cells (NKT) recognize self and microbial lipid antigens presented by non-polymorphic CD1d molecules. Two major NKT cell subsets, type I and II, express different types of antigen receptors (TCR) with distinct mode of CD1d/lipid recognition. Though type II NKT cells are less frequent in mice and difficult to study, they are predominant in human. One of the major subsets of type II NKT cells reactive to the self-glycolipid sulfatide is the best characterized and has been shown to induce a dominant immune regulatory mechanism that controls inflammation in autoimmunity and in anti-cancer immunity. Recently, type II NKT cells reactive to other self-glycolipids and phospholipids have been identified suggesting both promiscuous and specific TCR recognition in microbial immunity as well. Since the CD1d pathway is highly conserved, a detailed understanding of the biology and function of type II NKT cells as well as their interplay with type I NKT cells or other innate and adaptive T cells will have major implications for potential novel interventions in inflammatory and autoimmune diseases, microbial immunity, and cancer.

Keywords: CD1d; autoimmunity; cancer; inflammation; innate immunity; lipids; neutrophils; sulfatide.

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