Somatostatin receptors in the brain

Area of Science:

• Biochemistry
• Neuroscience
• Endocrinology

Background:

• Somatostatin is a peptide hormone with diverse physiological roles.
• It functions through five G protein-coupled somatostatin receptors (SSTR1-5).
• These receptors share structural homology and influence various signaling pathways.

Purpose of the Study:

• To review the multifaceted roles of somatostatin and its receptors (SSTRs).
• To highlight the involvement of SSTRs in both physiological functions and disease pathogenesis.
• To emphasize the rapidly advancing knowledge of SSTR signaling in the brain.

Main Methods:

• Literature review of recent research on somatostatin and SSTRs.
• Analysis of SSTRs' molecular structure and functional mechanisms.
• Examination of SSTRs' involvement in physiological and pathological processes.

Main Results:

• Somatostatin receptors modulate hormone release, act as neuromodulators, and regulate functions like pain, feeding, and mood.
• SSTRs can form homodimers and heterodimers, influencing receptor activity.
• Dysregulation of SSTR signaling is implicated in glial tumors, neurodegenerative diseases, and stroke.

Conclusions:

• Somatostatin receptors are key regulators of numerous physiological processes.
• SSTRs are implicated in the pathogenesis of significant neurological and oncological diseases.
• Ongoing research continues to uncover novel functions and therapeutic potential of SSTR signaling pathways.