期刊
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
卷 114, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dci.2020.103809
关键词
Goat; T cells; T lymphocytes; gamma delta T cells; Infectious diseases; Immunity
资金
- United States Department of Agriculture (USDA)-National Institute of Food and Agriculture -Animal and Food Research Institute (NIFA-AFRI) through the Animal Health and Well-Being program [2016-09379]
Goats are significant food animals with high adaptability. Infectious diseases can impact their productivity, while gamma delta T cells play important roles in immune responses. These cells respond to various infections and may have altered representation and function due to infection.
Goats are important food animals and are disseminated globally because of their high adaptability to varying environmental conditions and feeding regimes that provide them with a comparative advantage. Productivity is impacted by infectious diseases; this then contributes to societal poverty, food insecurity, and international trade restrictions. Since gamma delta T cells have been shown to have vital roles in immune responses in other mammals we reviewed the literature regarding what is known about their functions, distribution in tissues and organs and their responses to a variety of infections in goats. It has been shown that caprine gamma delta T cells produce interferon-gamma and IL-17, are found in a variety of lymphoid and nonlymphoid tissues and constitute a significant population of blood mononuclear cells. Their representation in tissues and their functional responses may be altered concomitant with infection. This review summarizes caprine gamma delta T cell responses to Brucella melitensis, Fasciola hepatica, Mycobacterium avium paratuberculosis, caprine arthritis encephalitis virus (CAEV), and Schistosoma bovis in infected or vaccinated goats. Caprine gamma delta T cells have also been evaluated in goats infected with M. caprae, Ehrilichia ruminantium, Haemonchus contortus and peste des petits ruminants (PPR) virus but found to have an unknown or limited response or role in either protective immunity or immunopathogenesis in those cases.
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