当前位置： SCI文献检索 > JOURNAL OF REPRODUCTIVE IMMUNOLOGY期刊下所有文献 > Potential contraceptive use of epididymal proteins: evidence for the participation of specific antibodies against rat epididymal protein DE in male and female fertility inhibition.

Potential contraceptive use of epididymal proteins: evidence for the participation of specific antibodies against rat epididymal protein DE in male and female fertility inhibition.

Abstract：

:Previous studies in our laboratory indicated that immunization of male and female Wistar and Lewis rats with epididymal protein DE, resulted in the development of anti-DE antibodies in over 90% of the animals, with a significant and reversible reduction of fertility. In the present study, ELISA assays performed to analyze the evolution of the immune response indicated that antibody levels in the sera of immunized animals reached a maximum at 8 weeks after the initial injection and then gradually decreased, returning to control values by the end of the sixth month. Western blot experiments demonstrated that the immune sera specifically recognized DE in epididymal sperm extracts and epididymal cytosol, while no reaction was observed with different reproductive and essential organs. The immune sera were also capable of recognizing DE on the surface of both fresh and capacitated sperm as indicated by indirect immunofluorescence experiments. Finally, the exposure of sperm to immune sera prior to uterine insemination resulted in a significant (P < 0.05) reduction in the percentage of fertilized eggs compared to controls, with no effect on sperm motility and viability, nor on their ability to undergo capacitation. Together, these results support the participation of the raised antibodies as mediators of the antifertility effect and suggest a specific interference at the sperm-egg interaction level.

journal_name

J Reprod Immunol

journal_title

Journal of reproductive immunology

authors

Perez Martinez S,Conesa D,Cuasnicú PS

doi

10.1016/0165-0378(95)00927-d

subject

Has Abstract

pub_date

1995-05-01 00:00:00

pages

31-45

issue

1

eissn

0165-0378

issn

1872-7603

pii

016503789500927D

journal_volume

29

pub_type

杂志文章

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