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ORIGINAL ARTICLE
Year : 2017  |  Volume : 6  |  Issue : 6  |  Page : 257-263

Anti-VDAC3 recombinant antibody decreased human sperm motility and membrane integrity: A potential spermicide for contraception


1 Department of Medical Biology, Faculty of Medicine, University of Indonesia, Indonesia
2 Postgraduate Program in Biomedical Sciences, Faculty of Medicine, University of Indonesia; Faculty of Medicine, YARSI University, Jakarta, Indonesia
3 Postgraduate Program in Biomedical Sciences, Faculty of Medicine, University of Indonesia, Indonesia
4 Department of Oral Biology, Faculty of Dentistry, University of Indonesia, Indonesia

Correspondence Address:
Asmarinah
Department of Medical Biology, Faculty of Medicine, University of Indonesia, Jln. Salemba Raya No. 6, Jakarta Pusat 10430
Indonesia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2305-0500.217340

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Objective: To express recombinant protein that comprises an important fragment of human sperm specific voltage dependent anion channel 3 (VDAC3) protein as a potential molecule for generation of antibody, which can affect sperm function, aiming at spermicide development. Methods: The produce of VDAC3 recombinant protein encoded by cDNA sequence of human VDAC3 exon 5-8, based on experimental design of VDAC3 knock-out mice study. And after the purification of various human sperm VDAC3 recombinant proteins, epitope has been predicted in our recombinant protein determined by ElliPro program. Polyclonal antibody was produced for 14 wk. Then anti-VDAC3-exon 5-8 recombinant antiserum was inoculated to human sperm. After the process, antibody VDAC3 protein in human sperm was incubation with anti-VDAC3 recombinant antibody. Finally evaluation the effect of VDAC3 antiserum to human sperm motility and plasma membrane integrity was proceeded. Results: Human VDAC3 recombinant protein was successfully over-expressed in Escherichia coli and purified by affinity chromatography method. Purified human sperm VDAC3 recombinant protein could stimulate immune response in rabbit producing an antibody against VDAC3. Anti-VDAC3 recombinant antibody recognized VDAC3 antigen in human sperm could decrease human sperm motility and membrane integrity significantly. Conclusions: Anti-VDAC3 recombinant polyclonal antibody that we produced in rabbit by ourselves could decrease sperm motility and sperm membrane integrity. The authors suggest this polyclonal antibody could be used as a candidate agent for male contraception in the future. Furthermore, the authors intend to explore the effect of this antibody into sperm function aiming at male contraceptive vaccine development.


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