期刊
SEMINARS IN IMMUNOLOGY
卷 26, 期 4, 页码 329-340出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.smim.2014.06.003
关键词
Helminths; Th2 cells; Wound repair; Macrophages; Eosinophils; IL-4R alpha
类别
资金
- Medical Research Council UK [MR/1001929/1, MR/K01207X/1]
- Wellcome Trust - Centre for Immunity, Infection and Evolution
- Medical Research Council [MR/J001929/1, MR/K01207X/1] Funding Source: researchfish
- MRC [MR/J001929/1, MR/K01207X/1] Funding Source: UKRI
Metazoan parasites typically induce a type 2 immune response, characterized by T helper 2 (Th2) cells that produce the cytokines IL-4, IL-5 and IL-13 among others. The type 2 response is host protective, reducing the number of parasites either through direct killing in the tissues, or expulsion from the intestine. Type 2 immunity also protects the host against damage mediated by these large extracellular parasites as they migrate through the body. At the center of both the innate and adaptive type 2 immune response, is the IL-4R alpha that mediates many of the key effector functions. Here we highlight the striking overlap between the molecules, cells and pathways that mediate both parasite control and tissue repair. We have proposed that adaptive Th2 immunity evolved out of our innate repair pathways to mediate both accelerated repair and parasite control in the face of continual assault from multicellular pathogens. Type 2 cytokines are involved in many aspects of mammalian physiology independent of helminth infection. Therefore understanding the evolutionary relationship between helminth killing and tissue repair should provide new insight into immune mechanisms of tissue protection in the face of physical injury. (C) 2014 The Authors. Published by Elsevier Ltd.
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