Evaluation of the expression of sperm proteins in normozoospermic and asthenozoospermic men using monoclonal antibodies

0455666 - BTÚ 2016 RIV IN eng J - Journal Article
Čapková, Jana - Kubátová, Alena - Děd, Lukáš - Teplá, O. - Pěknicová, Jana
Evaluation of the expression of sperm proteins in normozoospermic and asthenozoospermic men using monoclonal antibodies.
Asian Journal of Andrology. Roč. 18, č. 1 (2016), s. 108-113. ISSN 1008-682X. E-ISSN 1745-7262
R&D Projects: GA MŠMT(CZ) ED1.1.00/02.0109; GA ČR(CZ) GAP503/12/1834
Institutional support: RVO:86652036
Keywords : asthenozoospermia * flow cytometry * fluorescence microscopy * monoclonal antibodies * sperm proteins
Subject RIV: CE - Biochemistry
Impact factor: 2.996, year: 2016
http://www.ajandrology.com/article.asp?issn=1008-682X;year=2016;volume=18;issue=1;spage=108;epage=113;aulast=Capkova

Recent studies have shown that infertility affects estimated 15% of all couples. Male infertility is the primary or contributory cause in 60% of these cases. Consequently, the application of assisted reproduction is increasing. These methods could benefit from an extended evaluation of sperm quality. For this reason, we analyzed sperm proteins from 30 men with normal spermiograms and 30 men with asthenozoospermia. Ejaculates of both groups were tested by flow cytometry (FCM) and fluorescence with a set of well-characterized anti-human sperm Hs-monoclonal antibodies (MoAbs), which were generated in our laboratory. No statistically significant differences were found between normospermics and asthenospermics in the expression of the sperm surface protein clusterin, evaluated with Hs-3 MoAb, and semenogelin, evaluated with Hs-9 MoAb. However, FCM revealed quantitative differences in the acrosomal proteins between normozoospermic and asthenozoospermic men, namely, in glyceraldehyde-3-phosphate dehydrogenase, evaluated with Hs-8 MoAb, valosin-containing protein, evaluated with Hs-14 MoAb, and ATP synthase (cAMP-dependent protein kinase II, PRKAR2A), evaluated with MoAb Hs-36. Asthenozoospermic men displayed a highly reduced expression of intra-acrosomal proteins, with a likely decrease in sperm quality, and thus a negative impact on successful reproduction. Asthenozoospermia seems to be a complex disorder involving intra-acrosomal proteins.
Permanent Link: http://hdl.handle.net/11104/0257784