Mice immunized with a chlamydial extract have no increase in early protective immunity despite increased inflammation following genital infection by the mouse pneumonitis agent of Chlamydia trachomatis.
1994
Abstract
We have determined that immunization with a detergent extract of the mouse pneumonitis agent of Chlamydia trachomatis fails to induce a protective inflammatory immune response following genital infection by C. trachomatis. We demonstrated that mice immunized with the detergent extract have increased cutaneous delayed-type hypersensitivity and increased splenic T-cell proliferation in response to the chlamydial extract. After genital infection by C. trachomatis, extract-sensitized mice had significantly increased genital inflammation (P = 0.044) compared with controls. The inflammation was characterized by significantly increased eosinophils in the genitalia (P < 0.0005) and increased genital edema (P < 0.0005). However, the increased genital inflammation of extract-sensitized mice provided no increase in protection against infection (P = 0.92).
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