Screening of an antigen target for immunocontraceptives from cross-reactive antigens between human sperm and Ureaplasma urealyticum

	Screening of an antigen target for immunocontraceptives from cross-reactive antigens between human sperm and Ureaplasma urealyticum
	Shi, JL; Yang, ZM; Wang, M; Cheng, GY; Li, D; Wang, YF; Zhou, YC; Liu, XL; Xu, C
刊名	INFECTION AND IMMUNITY
	2007
卷号	75 期号:4 页码:2004-2011
通讯作者	Xu, C (reprint author), Shanghai Jiao Tong Univ, Sch Med, Dept Histol & Embryol, 280 S Chongqing Rd, Shanghai 200025, Peoples R China.,liux@sibs.ac.cn
英文摘要	Epidemiologic studies indicated that some infertile men who were infected with Ureaplasina urealyticum displayed positive antisperm antibodies in their serum and/or semen. The purpose of this study was to investigate the possible mechanism of antisperm antibodies production after infection with U. urealyticum and to analyze the relationship between U. urealyticum and infertility. The existence of cross-reactive antigens (61, 50, and 25 kDa) between U. urealyticum and human sperm membrane proteins was confirmed. Among the cross-reactive antigens, the urease complex component UreG of U. urealyticum was determined. By searching the Swiss-Prot protein database, a pentapeptide identity (IERLT) between UreG and human nuclear autoantigenic sperm protein (NASP) was found. Furthermore, using Western blot analysis and enzyme-linked immunosorbent assay, the cross-reaction between the NASP and UreG was verified. Both anti-rUreG antibody and the antiserum against the synthetic peptide NASP393-408 containing the pentapeptide inhibited mouse sperm egg binding and fusion. After immunization by rUreG or the synthetic peptide, 81.2 and 75% female mice became sterile, respectively. The effect on fertility in mice immunized with the synthetic peptide was reversible. These findings proved for the first time that it was feasible to screen antigens for immunocontraceptives from cross-reactive antigens between sperm and microorganisms which induce infertility.
学科主题	Immunology; Infectious Diseases
类目[WOS]	Immunology ; Infectious Diseases
关键词[WOS]	CHLAMYDIA-TRACHOMATIS ; IMMUNE-RESPONSE ; ZONA-PELLUCIDA ; IN-VITRO ; ANTIBODIES ; INFERTILITY ; MOUSE ; IDENTIFICATION ; RECOMBINANT ; SPERMATOZOA
收录类别	SCI
语种	英语
WOS记录号	WOS:000245421400053
内容类型	期刊论文
版本	出版稿
源URL	[http://202.127.25.143/handle/331003/1556]
专题	上海生化细胞研究所_上海生科院生化细胞研究所
推荐引用方式 GB/T 7714	Shi, JL,Yang, ZM,Wang, M,et al. Screening of an antigen target for immunocontraceptives from cross-reactive antigens between human sperm and Ureaplasma urealyticum[J]. INFECTION AND IMMUNITY,2007,75(4):2004-2011.
APA	Shi, JL.,Yang, ZM.,Wang, M.,Cheng, GY.,Li, D.,...&Xu, C.(2007).Screening of an antigen target for immunocontraceptives from cross-reactive antigens between human sperm and Ureaplasma urealyticum.INFECTION AND IMMUNITY,75(4),2004-2011.
MLA	Shi, JL,et al."Screening of an antigen target for immunocontraceptives from cross-reactive antigens between human sperm and Ureaplasma urealyticum".INFECTION AND IMMUNITY 75.4(2007):2004-2011.