Multiple Signaling Pathways Coordinate CYP17 Gene Expression in the Human Adrenal Cortex

Overview

Journal Acta Chim Slov

Specialty Chemistry

Date 2010 Jan 26

PMID 20098627

Citations 3

Authors

Marion B Sewer

Donghui Li

Eric B Dammer

Srinath Jagarlapudi

Natasha Lucki

Affiliations

Soon will be listed here.

Abstract

Optimal levels of steroid hormone biosynthesis are assured by the integration of several regulatory mechanisms, including substrate delivery, enzymatic activity, and gene transcription. In the human adrenal cortex, optimal glucocorticoid secretion is achieved by the actions of adrenocorticotropin (ACTH), which exerts transcriptional pressure on all genes involved in steroidogenesis. One of these genes is CYP17, which encodes P450 17alpha-hydroxylase-17,20 lyase, a key enzyme in the production of cortisol and adrenal androgens. Levels of CYP17 transcription are regulated by multiple regulatory mechanisms that act to respond to various signaling cues. These cues are coordinated in a developmental, species-, and tissue-specific manner, with an additional time/circadian-dependent level of regulation. This brief review will highlight some of the signal transduction cascades and transcription factors that have been shown to modulate CYP17 gene expression in the adrenal cortex.

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