Abstract

흰쥐 발정주기와 난소절제에 따른 질의 GCs, ER-<TEX>$\alpha$</TEX>, c-fos 및 c-jun 변화를 조직화학적 및 면역조직화학적으로 관찰하였다. 질상피는 발정사이기와 발정전기로 이어 지는 점액세포화과정에서 현저한 GCs의 양적 증가를 관찰할 수 있으며 발정사이기의 SBA, 발정전기와 발정기의 Con A와 같이 발정주기에 따른 특이적 GCs가 관찰되었다. 난소절제시에는 매우 위축된 표면층 평평세포에서만 미량의 GCs가 관찰되었다. 질에서 ER-<TEX>$\alpha$</TEX>, c-fos, c-jun등은 주로 핵에서 반응을 나타내는데, ER- <TEX>$\alpha$</TEX>는 상피세포 중 바닥층에서 주로 관찰되며, 반응세포수로 보아 발정주기에 따른 변화는 없었으나 버팀질세포에서는 발정사이기부터 발정기사이에 가장 많이 관찰되었다. c-fos는 상피의 바닥층과 중간층세포 그리고 버팀질세포에서 발정전기와 발정기사이에 가장 많이 관찰되며 c-jun은 발정기의 상피 바닥층에서 가장 많이 관찰되나 버팀질세포에서는 발정기에만 관찰되었다. 난소절제시 ER-<TEX>$\alpha$</TEX>, c-fos, c-jun모두 상피의 적은 세포에서만 관찰되며 버팀질 세포에서는 관찰되지 않았다. 이상의 결과로 보아 발정주기와 난소절제에 따라 특이적인 GCs분포를 보일 뿐 아니라 ER-<TEX>$\alpha$</TEX>, c-fos, c-jun 같은 단백질의 상이한 분포를 보여 주고 있어 이들이 질상피세포의 증식과 분화에 관여함을 알 수 있다. We investigated the compositional changes of glycoconjugates (GCs) and expression of estrogen receptor (ER)-<TEX>$\alpha$</TEX>, 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-<TEX>$\alpha$</TEX> immunoreaction was mainly demonstrated in the basal layer of epithelium and estrus cycle-related variation in the number of ER-<TEX>$\alpha$</TEX> immunoreaction were not pronounced. But the stromal cells showing ER-<TEX>$\alpha$</TEX> 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-<TEX>$\alpha$</TEX>, c-fos and c-jun immunoreactive cells were observed in the vaginal epithelium and no immunoreaction were found in the stromal cells. ER-<TEX>$\alpha$</TEX> 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-<TEX>$\alpha$</TEX>, c-fos and c-iun by estrogen that may function in process of cells proliferation and differentiation of vagina epithelium.

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