A contraceptive peptide vaccine targeting sulfated glycoprotein ZP2 of the mouse zona pellucida.
A contraceptive peptide vaccine targeting sulfated glycoprotein ZP2 of the mouse zona pellucida.
复制标题
一种针对小鼠透明带硫酸化糖蛋白 ZP2 的避孕肽疫苗。
DOI:
10.1095/biolreprod60.4.900
复制
发表时间:
1999
影响因子:
3.6
通讯作者:
Tung,KS
中科院分区:
文献类型:
--
作者:
Sun,W;Lou,YH;Dean,J;Tung,KS
In this study, we have mapped and characterized a B cell epitope of sulfated glycoprotein ZP2 (ZP2) as a step toward the development of a multi-epitope zona pellucida (ZP) vaccine. Recombinant polypeptides expressed by random deoxyribonuclease-digested fragments of ZP2 cDNA were screened for binding to IE-3, a monoclonal antibody to murine ZP2. Positive clones contained cDNA inserts encoding polypeptide corresponding to ZP2103–134. When normal or ovariectomized female mice were immunized with three overlapping peptides that span this region of ZP2 (101–120, 111–130, 121–140), only ZP2121–140elicited IgG antibodies that reacted with mouse ovarian ZP, indicative of the presence of native B epitope and helper T cell epitope in ZP2121–140. To more finely map the ZP2 B cell epitope, a random peptide display library was screened with the IE-3 antibody, and a consensus tetramer sequence VxYK that matched the ZP2123–126sequence VRYK was located. Competitive immunofluorescence analysis with single alanine-substituted VxYK peptides ranked the relative contribution of the three critical B cell epitope residues as Y > V > K. A chimeric peptide was constructed that contained the YRYK motif of ZP2 and a bovine RNase T cell epitope. Although (C57BL/6×A/J) F1 (B6AF1) female mice immunized with the chimeric peptide developed ZP antibody response, this peptide elicited antibody only in mice of the histocompatibility complex (MHC) H-2k or bhaplotype. In contrast, ZP2121–140peptide elicited antibody in inbred mice with three additional mouse MHC haplotypes. Moreover, although ZP2121–140contained a T cell epitope, no oophoritis was observed after immunization of B6AF1 mice with ZP2121–140in complete Freund's adjuvant (CFA). In a preliminary trial, female B6AF1 mice immunized with ZP2121–140in CFA had reduced litter sizes as compared with mice injected with CFA alone.
登录
查看更多内容
DOI:
--
发表时间:
1993
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Lou,Y;Tung,KS
通讯作者:
Tung,KS
DOI:
--
发表时间:
1996
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Lou,YH;McElveen,MF;Garza,KM;Tung,KS
通讯作者:
Tung,KS
影响因子:
7
作者:
Kenneth S. K. Tung;Yahuan Lou;Kristine M. Garza;C. Teuscher
通讯作者:
C. Teuscher
影响因子:
15.9
作者:
RHIM, SH;MILLAR, SE;TUNG, KSK
通讯作者:
TUNG, KSK
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
F. Kraus;I. Damjanov;N. Kaufman
通讯作者:
N. Kaufman