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. 1985 Sep;36(3):338-44.
doi: 10.1016/0090-1229(85)90054-6.

Immune Responsiveness of Monkeys Exposed Chronically to Cigarette Smoke

Immune Responsiveness of Monkeys Exposed Chronically to Cigarette Smoke

M L Sopori et al. Clin Immunol Immunopathol. .


Eleven adult male stumptailed monkeys (Macaca arctoides) were chronically exposed to either a low dose (human equivalent of 1 pack/day) or a high dose (human equivalent of 3 packs/day) of high-tar, high-nicotine University of Kentucky reference cigarette smoke for 4-8 years. Several parameters of their immunological response were compared to six nonsmoked control animals. The results from these experiments suggest that cigarette smoking does not significantly affect the response of spleen cells to the mitogens phytohemagglutinin or lipopolysaccharide. However, spleen cells from animals subjected to the heavy dose of cigarette smoke demonstrated a significant reduction in their natural killer cell-mediated lytic activity and a decreased response to concanavalin A. These results suggest that cigarette smoking may have a differential effect on lymphocyte subpopulations, and that the effects on the immune response are related to the dose of cigarette smoke.

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