Translator Disclaimer
1 January 2001 Effects of Testosterone on Production of Perivitelline Membrane Glycoprotein ZPC by Granulosa Cells of Japanese Quail (Coturnix japonica)
Author Affiliations +
Abstract

Avian perivitelline membrane, an investment homologous to the zona pellucida of mammalian oocytes, is composed of at least two glycoproteins. Previous studies have indicated that one of the components, a glycoprotein homologous to mammalian ZPC, is produced and secreted by the granulosa cells of developing follicles of the chicken ovary. In the present study, we evaluated the expression and regulation of ZPC in Japanese quail (Coturnix japonica) granulosa cells both in vivo and in vitro. Western blot analysis of the SDS-solubilized granulosa layer using anti-quail ZPC antiserum showed that the amount of ZPC increased in parallel with follicular development. Northern blot analysis of total RNA using cDNA of quail ZPC showed that the increase in mRNA expression was also correlated with follicular development. To investigate the regulation of ZPC production, the granulosa cells were cultured in a medium containing steroid hormones such as progesterone, estradiol-17β, or testosterone. By measuring ZPC protein and mRNA with Western and Northern blot analyses, respectively, we found that addition of testosterone maintained ZPC contents in the culture of the granulosa cells, and that ZPC mRNA expression was high in the culture with testosterone compared to the control. These results suggest that testosterone stimulates ZPC protein production at the gene transcription level.

Jianzhi Pan, Tomohiro Sasanami, Yoshinori Kono, Tsukasa Matsuda, and Makoto Mori "Effects of Testosterone on Production of Perivitelline Membrane Glycoprotein ZPC by Granulosa Cells of Japanese Quail (Coturnix japonica)," Biology of Reproduction 64(1), 310-316, (1 January 2001). https://doi.org/10.1095/biolreprod64.1.310
Received: 8 June 2000; Accepted: 28 August 2000; Published: 1 January 2001
JOURNAL ARTICLE
7 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top