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http://dx.doi.org/10.5352/JLS.2002.12.3.317

Differential expression of glycoconjugates, estrogen receptor-α, c-fos and c-jun in the vagina of normal and ovariectomized rat  

최병태 (동의대학교 한의과대학 해부학교실)
길영기 (고신대학교 의과대학 해부학교실)
김강련 (고신대학교 의과대학 해부학교실)
김순옥 (고신대학교 의과대학 해부학교실)
최영현 (동의대학교 한의과대학 생화학교실)
이준혁 (동의대학교 한의과대학 해부학교실)
Publication Information
Journal of Life Science / v.12, no.3, 2002 , pp. 317-324 More about this Journal
Abstract
We investigated the compositional changes of glycoconjugates (GCs) and expression of estrogen receptor (ER)-$\alpha$, c-fos and c-jun in the vagina of normal and ovariectomized rats by histochemical and immunohistochemical methods. The mucinous transformation of the superficial layer that occurred from late diestrus to proestrus was accompanied with extensive enrichment of GCs. According to the cyclic changes of the vagina, distinct reactivity patterns such as SBA affinity in the diestrus and Con A affinity in the diestrus and estrus phase was observed. However, weak staining for GCs was detected in the atrophied vaginal epithelium of ovariectomized rats. ER-$\alpha$ immunoreaction was mainly demonstrated in the basal layer of epithelium and estrus cycle-related variation in the number of ER-$\alpha$ immunoreaction were not pronounced. But the stromal cells showing ER-$\alpha$ immunoreaction were abundantly observed from diestrus to estrus phase. The most numerous c-fos immunoreactive cells were observed in the basal and intermediate layer of epithelium and stromal fells from the proestrus to estrus phase and c-jun in the basal layer of epithelium during estrus phase. The c-jun immunoreaction of stromal cells expressed only in the estrus phase. In the ovariectomized rats, a few of ER-$\alpha$, c-fos and c-jun immunoreactive cells were observed in the vaginal epithelium and no immunoreaction were found in the stromal cells. ER-$\alpha$ and c-fos immunoreaction fully expressed in the proestrus coincident with the cell proliferation, mutinous transformation and cornification of vaginal epithelium. These data indicate that vagina epithelium and stromal reals express multiple protein such as ER-$\alpha$, c-fos and c-iun by estrogen that may function in process of cells proliferation and differentiation of vagina epithelium.
Keywords
vagina; glycoconjugates; estrogen receptor-$\alpha$; c-fos; c-jun;
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