» Articles » PMID: 7870182

Molecular Pharmacology of Somatostatin Receptors

Overview
Specialty Pharmacology
Date 1994 Nov 1
PMID 7870182
Citations 27
Authors
Affiliations
Soon will be listed here.
Abstract

The neuropeptide somatostatin (SRIF) is widely expressed in the brain and in the periphery in two main forms, SRIF-14 and SRIF-28. Similarly, the presence of SRIF receptors throughout the whole body has been reported. SRIF produces a variety of effects including modulation of hormone release (e.g. GH, glucagon, insulin), of neurotransmitter release (e.g. acetylcholine, dopamine, 5-HT), and its own release is modulated by many neurotransmitters. SRIF affects cognitive and behavioural processes, the endocrine system, the gastrointestinal tract and the cardiovascular system and also has tumor growth inhibiting effects. Initially, two classes of SRIF receptors have been proposed on the basis of biochemical and functional studies. However, the recent cloning of five putative SRIF receptor subtypes which belong to the G-protein coupled receptor superfamily suggests that SRIF mediates its various effects via a whole family of receptors. Here we review, in this new context, the molecular pharmacology of the SRIF receptor subtypes present in the brain and in the periphery, and address the question of nomenclature of SRIF receptors.

Citing Articles

Structural basis for activation of somatostatin receptor 5 by cyclic neuropeptide agonists.

Li J, You C, Li Y, Li C, Fan W, Chen Z Proc Natl Acad Sci U S A. 2024; 121(26):e2321710121.

PMID: 38885377 PMC: 11214081. DOI: 10.1073/pnas.2321710121.


Receptor depletion and recovery in small-intestinal neuroendocrine tumors and normal tissues after administration of a single intravenous dose of octreotide measured by Ga-DOTATOC PET/CT.

Jahn U, Ilan E, Velikyan I, Fross-Baron K, Lubberink M, Sundin A EJNMMI Res. 2021; 11(1):118.

PMID: 34822040 PMC: 8617112. DOI: 10.1186/s13550-021-00860-0.


The Zollinger-Ellison syndrome: is there a role for somatostatin analogues in the treatment of the gastrinoma?.

Guarnotta V, Martini C, Davi M, Pizza G, Colao A, Faggiano A Endocrine. 2017; 60(1):15-27.

PMID: 29019150 DOI: 10.1007/s12020-017-1420-4.


Copper-64 Radiopharmaceuticals for Oncologic Imaging.

Holland J, Ferdani R, Anderson C, Lewis J PET Clin. 2016; 4(1):49-67.

PMID: 27156895 PMC: 4961094. DOI: 10.1016/j.cpet.2009.04.013.


Cross-talk and modulation of signaling between somatostatin and growth factor receptors.

Kumar U Endocrine. 2011; 40(2):168-80.

PMID: 21870170 DOI: 10.1007/s12020-011-9524-8.


References
1.
Vanetti M, Vogt G, Hollt V . The two isoforms of the mouse somatostatin receptor (mSSTR2A and mSSTR2B) differ in coupling efficiency to adenylate cyclase and in agonist-induced receptor desensitization. FEBS Lett. 1993; 331(3):260-6. DOI: 10.1016/0014-5793(93)80349-y. View

2.
Robbins R, Landon R . Somatostatin release from cerebral cortical cells: influence of amino acid neurotransmitters. Brain Res. 1983; 273(2):374-8. DOI: 10.1016/0006-8993(83)90866-1. View

3.
Watson T, Pittman Q . Pharmacological evidence that somatostatin activates the m-current in hippocampal pyramidal neurons. Neurosci Lett. 1988; 91(2):172-6. DOI: 10.1016/0304-3940(88)90763-x. View

4.
Reubi J, Perrin M, Rivier J, Vale W . High affinity binding sites for somatostatin to rat pituitary. Biochem Biophys Res Commun. 1982; 105(4):1538-45. DOI: 10.1016/0006-291x(82)90963-9. View

5.
Tran V, Beal M, Martin J . Two types of somatostatin receptors differentiated by cyclic somatostatin analogs. Science. 1985; 228(4698):492-5. DOI: 10.1126/science.2858917. View