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Piana degli Albanesi, Italy

Basini G.,Sezione di Fisiologia Veterinaria | Baioni L.,Sezione di Fisiologia Veterinaria | Bussolati S.,Sezione di Fisiologia Veterinaria | Grolli S.,Sezione di Biochimica Veterinaria | And 3 more authors.
General and Comparative Endocrinology | Year: 2010

Stanniocalcin 1 (STC 1) is a glycoprotein involved in mineral homeostasis and was first identified in fish. Its mammalian homologue has been implicated in the regulation of various biological processes, including angiogenesis and steroidogenesis both of which are fundamental events in ovarian function. Interestingly, the highest level of STC 1 expression in mammals occurs in ovarian tissue but no information is available on swine species. Therefore, the present study was undertaken to investigate the expression and the immunolocalization of STC 1 in swine ovary. In addition, we evaluated whether swine granulosa cells synthesize STC 1 and its possible modulation by hypoxia, a physiological condition in ovarian follicle growth. Our data show STC 1 for the first time in swine ovary; moreover, we demonstrate STC 1 production by granulosa cells, both in basal condition and in response to oxygen deprivation. The latter is suggestive of a potential modulatory role for STC 1 in hypoxia-driven angiogenesis. © 2009 Elsevier Inc. All rights reserved.

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