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. 1984 Jan;43(1):84–92. doi: 10.1128/iai.43.1.84-92.1984

Chlamydia trachomatis stimulates human peripheral blood B lymphocytes to proliferate and secrete polyclonal immunoglobulins in vitro.

J Bard, D Levitt
PMCID: PMC263392  PMID: 6606626

Abstract

Infectious Chlamydia trachomatis (LGV strain), obligate intracellular bacteria, stimulated human peripheral blood lymphocytes to proliferate and secrete immunoglobulins in vitro. In contrast, mock-infected preparations were unable to induce similar responses in peripheral blood lymphocytes. Although levels of immunoglobulin secreted into the media of LGV-stimulated cultures were greater than 10 micrograms/ml, we estimated that less than 1% of these molecules were directed against the bacteria itself, suggesting polyclonal antibody production. Since stimulation with Formalin-killed bacteria resulted in comparable numbers of plaque-forming cells (PFC) as infectious particles, we concluded that the polyclonal immunoglobulin response was not dependent on the in vitro chlamydial infectious process. The polyclonal PFC response induced by LGV was highly sensitive to monocyte inhibition. Although LGV induced proliferation of predominantly B cells, the numbers of generated PFC was increased by the addition of autologous T cells. Neither lymphocyte proliferation nor PFC responses of normal human volunteers correlated significantly with the presence or titer of antichlamydial antibodies in their sera.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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