IMMUNOCYTOCHEMICAL LOCALIZATION OF INHIBIN ALPHA-SUBUNIT IN THE HUMAN CORPUS-LUTEUM

被引:32
作者
SMITH, KB [1 ]
MILLAR, MR [1 ]
MCNEILLY, AS [1 ]
ILLINGWORTH, PJ [1 ]
FRASER, HM [1 ]
BAIRD, DT [1 ]
机构
[1] CTR REPROD BIOL,DEPT OBSTET & GYNAECOL,EDINBURGH EH3 9EW,SCOTLAND
关键词
D O I
10.1677/joe.0.1290155
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The localization of inhibin alpha-subunit within the human corpus luteum was investigated. The antiserum used was raised in sheep against the first 1-23 amino acid sequence of the N-terminus of the human inhibin alpha-subunit. Using the avidin-biotin immunoperoxidase technique, intense immunostaining was localized within the granulosa-lutein cells of the corpus luteum, with absence of staining in the theca-lutein cells and surrounding ovarian tissue. Similar distribution of inhibin alpha-subunit immunostaining was observed in 12 corpora lutea obtained during the early, mid- and late-luteal phases and no changes in intensity were apparent at these different stages. Negative controls were obtained by applying antiserum which had been preabsorbed overnight with excess inhibin peptide in place of primary antiserum and also normal non-immune sheep serum as a substitute for primary antiserum. These results provide further evidence that the human corpus luteum is a significant source of immunoreactive inhibin during the normal human menstrual cycle. The specific localization within the granulosalutein cells of the corpus luteum suggests that inhibin alpha-subunit production may originate from a discrete cell population within the human corpus luteum.
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页码:155 / 160
页数:6
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