The Origin of Ciliated Cell Cysts of the Anterior Pituitary. An Experimental Study in the Rat

Overview

Journal Virchows Arch A Pathol Anat Histopathol

Specialty Anatomy & Histology

Date 1987 Jan 1

PMID 2446416

Citations 7

Authors

G Gon

Affiliations

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Abstract

Rats were decapitated and the heads were stored at 4 degrees C for 24 h. The anterior pituitaries were then removed and incubated for 5 days. On the 1st, 3rd and 5th days of incubation, explants were studied by electron microscopy and immunohistochemistry using antiserum against S-100 protein. In the explant many granulated cells underwent necrosis; folliculo-stellate (FS) cells formed many cyst-like structures (CLSs) and became squamous epithelioid cells (CLS-forming cells). After incubation for 5 days the explants were isotransplanted under the renal capsules of male rats in order to observe morphological changes in the CLSs. Immediately after transplantation, the CLSs were encircled by a basement membrane, but from the 8th to 14th day, ciliation occurred in CLS-forming cells and "ciliated cell cysts" were formed. The ciliated cells were immunostained with antiserum against S-100 protein. The present study suggests that FS cells are related to CLS formation and have the potential to trans-differentiate to ciliated cells.

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