help button home button Endocrine Society Endocrinology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
This Article
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Copyright Permission
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Kalland, T.
Right arrow Articles by Forsberg, J. G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kalland, T.
Right arrow Articles by Forsberg, J. G.

Endocrinology, Vol 99, 1548-1553, Copyright © 1976 by Endocrine Society

ARTICLES

The content of a specific cell product in the vaginal epithelium of normal and neonatally estrogenized mice: its dependence on an estradiol- prolactin interaction

T Kalland, SO Doskeland and JG Forsberg

The amount of an immunological marker (CVA) in mucified cells of the mouse vaginal epithelium was quantified by a mixed hemagglutination technique for tissue sections. Immature mice, adult mice which had been estrogenized neonatally (5 mug diethylstilbestrol daily for the first five days after birth), and adult non-estrogenized mice were studied. All adult animals were castrated 7-10 days before starting the experiments. Injections of 5 mug estradiol-17beta (48 and 24 h before killing the animals) increased the amount of CVA in all three groups of animals, but most markedly in the neonatally estrogenized mice. The amount of CVA found following estradiol treatment was decreased in adult animals injected with the ergot alkaloid CB154 (0.5 mg twice daily for 6 days) in addition to the hormone. This partial block of the estradiol-induced CVA response by CB154 was relieved by exogenous rat prolactin. The CVA content in immature animals was not influenced by CB154, given alone or together with estradiol. Combined treatment with estradiol and rat prolactin (3 mug every 8 h for 6 days) increased more efficiently than estradiol alone the amount of CVA in immature and adult nonestrogenized animals. Prolactin injected alone had no effect on the CVA content. These data strongly suggest a synergistic action of estradiol and prolactin in augmenting the epithelial CVA content. Explants of the vaginal wall from normal and neonatally estrogenized mice were grafted into the thigh muscles of newborn mice, every host carrying one graft from both types of animals. The CVA content in the epithelium of the two grafts increased to the same level in response to estradiol. When the hosts were injected with estradiol and prolactin, the CVA content was higher in grafts from estrogenized donors than in those from nonestrogenized animals. Our results demonstrate that the mucified vaginal cells in adult, neonatally estrogenized mice have a content of CVA which is higher than in nonestrogenized animals. This difference may be ascribed to hormonal factors (estradiol-prolactin) as well as to persistent effects in the vaginal cells as a result of the neonatal estrogen treatment.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Endocrinology Endocrine Reviews J. Clin. End. & Metab.
Molecular Endocrinology Recent Prog. Horm. Res. All Endocrine Journals
Copyright © 1976 by The Endocrine Society