Pituitary Folliculo-stellate Cells Immunostained with S-100 Protein Antiserum in Postnatal, Castrated and Thyroidectomized Rats

Overview

Journal Cell Tissue Res

Specialties Anatomy & Histology
Cell Biology

Date 1983 Jan 1

PMID 6850801

Citations 32

Authors

N Shirasawa

H Kihara

S Yamaguchi

F Yoshimura

Affiliations

Soon will be listed here.

Abstract

Pituitary folliculo-stellate cells and associated cells were studied immunohistochemically throughout the life of male and female rats. The marginal layer cells of the pars distalis and intermedia as well as the folliculo-stellate cells were immunostained with anti-S 100 protein serum. The immunostained folliculo-stellate cells in one section were identified as themselves by their ultrastructural properties on the adjacent section. Corticotrophs, thyrotrophs and prolactin cells, characterized by the stellate shape, were not immunostained with anti-S 100 protein serum. Reactivity for S-100 protein appeared on postnatal Day 6 in the marginal layer cells of the pars intermedia, and appeared on Day 10 in those cells of the pars distalis. No immunostained folliculo-stellate cells appeared before Day 6, but a few of them appeared on Day 10. Thereafter they increased in number, having more intense immunostaining with advancing age. In castrated rats, the immunostained folliculo-stellate cells appeared quite numerously, with branched cytoplasmic processes surrounding the gonadotrophs. In the thyroidectomized rats, however, folliculo-stellate cells lacked ramified cytoplasmic processes, and their topographic affinity for thyrotrophs was negligible.

Citing Articles

New insights into the role and origin of pituitary S100β-positive cells.

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Functional Pituitary Networks in Vertebrates.

Santiago-Andres Y, Golan M, Fiordelisio T Front Endocrinol (Lausanne). 2021; 11:619352.

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Folliculostellate cells of the pituitary.

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Functional Role of Gonadotrope Plasticity and Network Organization.

Edwards B, Clay C, Ellsworth B, Navratil A Front Endocrinol (Lausanne). 2017; 8:223.

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Distinctive actions of connexin 46 and connexin 50 in anterior pituitary folliculostellate cells.

Vitale M, Garcia C, Akpovi C, Pelletier R PLoS One. 2017; 12(7):e0182495.

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