Target intelligence / Profile preview

Somatostatin (GHIH)

Target
GHIH
Molecular classification
Peptide hormone
01

Overview

Somatostatin is a peptide hormone that inhibits the secretion of several other hormones and various physiological processes. It acts through five G-protein coupled receptors (SSTR1-SSTR5) and plays a key role in regulating endocrine function, gastrointestinal function, and cell proliferation. Synthetic somatostatin analogs are used clinically to treat neuroendocrine tumors and other conditions.

Other names
Growth Hormone-Inhibiting Hormonecyclic somatostatinsomatostatinasomatostatine
02

Mechanism of action

Activation of somatostatin receptors (SSTR1-SSTR5), leading to inhibition of adenylyl cyclase and downstream signaling pathways.

03

Biological functions

Inhibition of hormone secretionRegulation of cell proliferationModulation of neurotransmission
04

Disease associations

Neuroendocrine tumorsGastrointestinal bleeding
05

Safety considerations

Potential for rebound hormonal hypersecretion upon withdrawalSide effects associated with synthetic somatostatin analogs
06

Interacting drugs

Octreotide

1 more in the full profile.

07

Biomarkers

Somatostatin receptor expression levels in neuroendocrine tumors

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