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Review
. 2010 Mar;21(3):123-33.
doi: 10.1016/j.tem.2009.12.003. Epub 2010 Feb 9.

Pituitary somatostatin receptor signaling

Anat Ben-Shlomo  1 , Shlomo Melmed
Affiliations
Review

Pituitary somatostatin receptor signaling

Anat Ben-Shlomo et al. Trends Endocrinol Metab. 2010 Mar.

Abstract

Somatotropin-release inhibitory factor (SRIF) is a major regulator of pituitary function, mostly inhibiting hormone secretion and to a lesser extent pituitary cell growth. Five SRIF receptor subtypes (SSTR1-5) are ubiquitously expressed G-protein coupled receptors. In the pituitary, SSTR1, 2, 3 and 5 are expressed, with SSTR2 and SSTR5 predominating. As new SRIF analogs have recently been introduced for treatment of pituitary disease, we evaluate the current knowledge of cell-specific pituitary SRIF receptor signaling and highlight areas of future research for comprehensive understanding of these mechanisms. Elucidating pituitary SRIF receptor signaling enables understanding of pituitary hormone secretion and cell growth, and also encourages future therapeutic development for pituitary disorders.

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