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Immunodominant semen proteins II: contribution of seminal proteins to female immune infertility

A. Brázdová, M. Vermachová, J. Zídková, H. Sénéchal, P. Poncet, Z. Ulčová-Gallová, G. Peltre

. 2013 ; 59 (5) : 198-203.

Language English Country Czech Republic

Document type Journal Article, Research Support, Non-U.S. Gov't

Persistent link   https://www.medvik.cz/link/bmc14075208

Seminal fluid is a protective medium for sperm, but it also represents potential immunogenic structures for the female immune system. Anti-seminal antibodies may threaten early fertilization. The aim of our work is to detect and identify seminal proteins that are related to female isoimmunization. In this report, we quantified serum anti-seminal IgG antibodies. Seminal proteins were analysed by two-dimensional gel electrophoresis followed by immunoblotting. To identify IgG-binding proteins of interest, a proteomic approach was selected. The dominant seminal antigens were detected within the relative molecular mass ranging from 25 to 85 kDa and the isoelectric point from 5 to 7. The detected proteins were further identified as prostate-specific antigen, prostatic acid phosphatase, zinc-α-2-glycoprotein and zinc finger protein 778. Since these proteins were recognized by IgGs produced by infertile women and not by fertile women, we presume that major seminal antigens may play an important role in the pathogenesis of female immune infertility. Our study suggests the pattern of seminal proteins for further therapeutic attempts in the diagnosis of female immune infertility.

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$a Immunodominant semen proteins II: contribution of seminal proteins to female immune infertility / $c A. Brázdová, M. Vermachová, J. Zídková, H. Sénéchal, P. Poncet, Z. Ulčová-Gallová, G. Peltre
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$a Seminal fluid is a protective medium for sperm, but it also represents potential immunogenic structures for the female immune system. Anti-seminal antibodies may threaten early fertilization. The aim of our work is to detect and identify seminal proteins that are related to female isoimmunization. In this report, we quantified serum anti-seminal IgG antibodies. Seminal proteins were analysed by two-dimensional gel electrophoresis followed by immunoblotting. To identify IgG-binding proteins of interest, a proteomic approach was selected. The dominant seminal antigens were detected within the relative molecular mass ranging from 25 to 85 kDa and the isoelectric point from 5 to 7. The detected proteins were further identified as prostate-specific antigen, prostatic acid phosphatase, zinc-α-2-glycoprotein and zinc finger protein 778. Since these proteins were recognized by IgGs produced by infertile women and not by fertile women, we presume that major seminal antigens may play an important role in the pathogenesis of female immune infertility. Our study suggests the pattern of seminal proteins for further therapeutic attempts in the diagnosis of female immune infertility.
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$a Vermachová, Martina $7 xx0121452 $u Department of Biochemistry and Microbiology, Institute of Chemical Technology Prague, Prague, Czech Republic
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$a Zídková, Jarmila $7 xx0074470 $u Department of Biochemistry and Microbiology, Institute of Chemical Technology Prague, Prague, Czech Republic
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