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    • 57. 发明授权
    • Method of detecting mycoplasma infection in poultry and compositions
therefor
    • 家禽支原体感染检测方法及其组成
    • US5196514A
    • 1993-03-23
    • US489011
    • 1990-03-06
    • Alan P. AvakianStanley H. Kleven
    • Alan P. AvakianStanley H. Kleven
    • A61K39/00C07K14/30C07K16/12
    • C07K16/1253C07K14/30A61K39/00Y10S435/863
    • The present invention relates to the identification and purification of antigens from M. gallisepticum and M. synoviae and their use in serological assays. Cell proteins from these organisms that possess substantial immunoreactive responses with poultry antisera to the mycoplasma from which they are isolated in both the acute and convalescent stages of infection are identified. Of these immunogenic proteins, those that also lack immunogenic cross-reactivity with antisera to other poultry mycoplasmas and pathogens are identified. These species specific proteins are purified and incorporated into enzyme-linked immunosorbent assays (ELISAs). The resulting assays are able to detect sensitively and selectively both field or experimentally-induced M. gallisepticum or M. synoviae infection in poultry. A combination of these assays are incorporated into a diagnostic kit to allow the rapid, sensitive, and selective testing for and differentiation between M. gallisepticum and M. synoviae. This invention also provides anti-serum to these mycoplasma antigens and an immunoassay that employs this anti-serum to detect infection in poultry. Furthermore, a method to produce genetic clones that express the antigenic portions of the mycoplasma antigens is provided.
    • 本发明涉及鉴定和纯化来自烟曲霉和滑膜梭菌的抗原及其在血清学检测中的应用。 鉴定出来自这些生物体的细胞蛋白质,其具有与家禽抗血清相当的免疫反应性对支原体的敏感性,从支原体分离其在感染的急性期和恢复期。 在这些免疫原性蛋白质中,鉴定出与其他家禽支原体和病原体的抗血清也缺乏免疫原性交叉反应性的蛋白质。 这些物种特异性蛋白质被纯化并并入酶联免疫吸附测定(ELISA)中。 所得到的测定能够敏感地和有选择地检测野鸡或实验诱导的鸡只胆囊炎或家禽中的滑膜梭菌感染。 将这些测定法的组合并入诊断试剂盒中,以允许快速,灵敏和选择性检测烟曲霉和滑膜梭菌之间的鉴定和分化。 本发明还提供了对这些支原体抗原的抗血清和使用该抗血清检测家禽感染的免疫测定。 此外,提供了产生表达支原体抗原的抗原部分的遗传克隆的方法。