期刊
AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY
卷 61, 期 3, 页码 227-235出版社
WILEY
DOI: 10.1111/j.1600-0897.2009.00685.x
关键词
Genetic immunization; immunocontraception; Izumo
Study on feasibility of pCXN2-mIzumo as a potential immunocontraceptive antigen. Two groups of mice received 100 mu g/mouse plasmids of pCXN2-mIzumo and pCXN2 respectively. RT-PCR Immunofluorescence assay and ELISA were performed to observe pCXN2-mIzumo expression and antibody response in the inoculated mice. Sperm penetration assay and animal mating were employed to detect differences of in vitro fertilization (IVF) rate and mean litter size between the experimental and control groups. Izumo cDNA positive bands were detected in sample from mice immunized with pCXN2-mIzumo. IgG response started to rise at 2 weeks after first boost and reached the highest antibody titers at 2 weeks after third boost of immunization with pCXN2-mIzumo in the experimental mice. In vitro fertilization rate in the experimental group (11.57%) was significantly lower than that in control (36.60%). Significant difference of mean litter size between female experimental and control groups was observed, and there was significant negative correlation between individual anti-serum titers and litter size (r = -0.308, P < 0.05). pCXN2-mIzumo plasmid possesses appreciable anti-fertility potential.
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