Abstract
Immunoinfertility is caused by antisperm antibodies (ASA) present in the female or male partner of an infertile couple. PSA is a serine protease produced primarily by the prostate gland and is present in human semen. Although the modulation of PSA has been investigated in prostate abnormalities, its role and effect of its dysfunction on human fertility has not been examined. The present study was conducted to examine the presence and incidence of antibodies to PSA in sera of immunoinfertile women and men. The presence of iso- and autoantibodies in the sera of immunoinfertile patients was examined using the well-characterized purified human PSA and seminal plasma from normal fertile men in ELISA. Sera were collected from infertile women (n=25) and infertile men (n=19) who were positive for ASA. Sera from ASA-negative fertile women (n=24) and fertile men (n=19) served as controls. In women, sera from 40% of the immunoinfertile women showed positive reactivity with PSA, and 20% reacted positively with seminal plasma. None of the sera from fertile women reacted positively with PSA or seminal plasma. In men, sera from 16% of the immunoinfertile men showed positive reactivity with PSA, and none (0%) with seminal plasma. None of the sera from fertile men reacted positively with PSA or seminal plasma. This is the first study to examine the presence and incidence of PSA antibodies in immunoinfertile women and men. The findings may have clinical application in the specific diagnosis and treatment of immunoinfertility in humans.
Published Version
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