Functional Assessment of the Calcium Messenger System in Cultured Mouse Leydig Tumor Cells: Regulation of Human Chorionic Gonadotropin-Induced Expression of the Steroidogenic Acute Regulatory Protein

Abstract excerpt

The steroidogenic acute regulatory (StAR) protein, a 30-kDa mitochondrial factor, is a key regulator of steroid hormone biosynthesis, facilitating the transfer of cholesterol from the outer to the inner mitochondrial membrane. StAR protein expression is restricted to steroidogenic tissues, and it responds to hormonal stimulation through different second messenger pathways. The present study was designed to...

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