期刊
VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY
卷 124, 期 1-2, 页码 1-18出版社
ELSEVIER
DOI: 10.1016/j.vetimm.2007.12.006
关键词
defensins; antimicrobial peptides; innate immunity; birds
Modulation of defensin expression may be one way to improve animal health and to reduce zoonotic diseases. Defensins are small, cationic, and amphipathic cysteine-rich antibiotic peptides found in plants, insects, mammals and birds. Whereas alpha- and theta-defensins appear to be absent in birds, several beta-defensins have been isolated from avian heterophils. In addition, beta-defensins were found to be constitutively or inducibly expressed at mucosal surfaces of the respiratory, intestinal and urogenital tracts. In this review the current knowledge of the defensin repertoire of birds, their tissue-specific expression, regulation and corresponding biological functions are described. (c) 2008 Elsevier B.V. All rights reserved.
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