Effect of pubertal development on estrogen receptor levels and stromal morphology in the guinea pig prostate

The Prostate
W D TilleyV R Marshall

Abstract

Using an immunocytochemical assay (ERICA) with a monoclonal antibody (H222Sp gamma) to the human estrogen receptor, we have demonstrated a stromal localization of the estrogen receptor in the dorsolateral prostate of the guinea pig. Specific staining of estrogen receptor in the guinea pig prostate was confined to the nuclei of periacinar and interacinar stromal cells. In comparison with prepubertal tissues, estrogen receptor staining intensity was markedly reduced in postpubertal prostatic tissues. No immunoreactive estrogen receptor was detected in the acinar epithelial cells irrespective of the developmental stage of the guinea pig prostate. Electron microscopic examination of the guinea pig prostate showed that the stromal component consists predominantly of smooth muscle cells, which, during pubertal development, undergo marked cytological changes and increase in size. These changes in the prostatic stroma were associated with a greater than fivefold reduction in levels of cytosolic and nuclear estrogen receptor determined by either a radioligand binding assay or an enzyme immunoassay (EREIA) and expressed relative to soluble protein. Morphometric analysis of the prostatic stromal cell density (SCD: nuclei/mm2 interacinar s...Continue Reading

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Citations

Nov 1, 1989·In Vitro Cellular & Developmental Biology : Journal of the Tissue Culture Association·C RicciardelliW D Tilley
Nov 22, 2013·Reproductive Toxicology·Joyce Zalotti BrandtWellerson Rodrigo Scarano
Jun 3, 2008·The Journal of Steroid Biochemistry and Molecular Biology·Elisa J CopsWayne D Tilley
Aug 12, 2015·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Bruna Dias BernardoLuis Fernando Barbisan
Nov 28, 2001·The European Journal of Neuroscience·P G GreenJ D Levine
May 26, 2017·Physiological Reviews·Paul S CookeRex A Hess
Jan 23, 2021·Differentiation; Research in Biological Diversity·Gail S Prins

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