期刊
JOURNAL OF INFECTIOUS DISEASES
卷 203, 期 8, 页码 1120-1128出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/infdis/jiq176
关键词
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资金
- National Institutes of Health [AI-038991]
- Arkansas Bioscience Institute
Chlamydia muridarum and Chlamydia trachomatis mouse models of genital infection have been used to study chlamydial immunity and vaccine development. To assess the protective role of CD4(+) T cells in resolving C. trachomatis and C. muridarum genital tract infections, we used the female mouse model and evaluated infection in the presence and absence of CD4(+) T cells. In contrast to C. muridarum infection, C. trachomatis infection was unaltered in the absence of CD4(+) T cells. Mice infected with C. trachomatis developed protective immunity to re-challenge, but unlike C. muridarum infection, optimum resistance required multiple infectious challenges, despite the generation of adaptive serum and local chlamydial specific immune responses. Thus, understanding the chlamydial pathogenic and host immunologic factors that result in a diminished protective role for CD4(+) T cells in C. trachomatis murine infection might lead to new insights important to human immunity and vaccine development.
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