NON-ASSOCIATION OF MACROPHAGE PHAGOCYTOSIS AND OXIDANT STIMULATION WITH COMPLEMENT RESISTANCE AND COLICIN V-PRODUCTION BY AVIAN ESCHERICHIA-COLI

被引:2
作者
BOUNOUS, DI [1 ]
WOOLEY, RE [1 ]
BROWN, J [1 ]
机构
[1] UNIV GEORGIA,COLL VET MED,DEPT MED MICROBIOL,ATHENS,GA 30602
关键词
D O I
10.2307/1591846
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Avian isolates of Escherichia coli were classified as virulent based on their isolation from chickens with natural cases of colisepticemia, production of colicin V, and complement resistance. A second group of isolates was designated as avirulent based on their isolation from healthy chickens, their inability to produce colicin, and their classification as sensitive or intermediate to the action of complement. In vitro assays of phagocytosis and oxidant production were performed in an attempt to correlate these activities with the ability of each group of bacteria to escape the specific host defense mechanisms of phagocytosis and killing. Although oxidant production regressed with significant linearity on percent phagocytosis, neither group (virulent or avirulent) differed in ability to stimulate peritoneal macrophage phagocytic and oxidant activity when opsonized with normal chicken serum. These results differ from those in mammalian species.
引用
收藏
页码:135 / 140
页数:6
相关论文
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