Abstract
Antisperm cell-mediated immunity has been associated with infertility in men and women. The purpose of this study was to determine whether the products of activated lymphocytes and macrophages (Iymphokines and monokines) affect the fertilizing ability of human spermatozoa in the zona-free hamster egg penetration test. Of a panel of six different purified cytokines tested, the Iymphokine 'Y-interieron and the mono kine tumor necrosis factor significantly affected the ability of human sperm to penetrate hamster eggs. An inhibitory effect was observed when motile sperm were harvested for use in the assay by a swim-up technique after overnight incubation in low amounts of these cytokines and also when the factors were added to the cultures at the time sperm were introduced to the eggs. These data contribute further evidence that soluble factors produced by activated lymphocytes and macrophages in reproductive tissues could be significant mediators of immunologic infertility. (AM J OSSTET GVNECOL 1989;160:1154-9.)
Published Version
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