VIP: molecular biology and neurobiological function.

Area of Science:

• Neuroscience
• Endocrinology
• Molecular Biology

Background:

• Vasoactive intestinal peptide (VIP) is a crucial regulatory peptide found in the mammalian brain, peripheral nervous system, and endocrine cells.
• VIP plays significant roles as a neurotransmitter and hormone, modulating essential physiological functions.
• Evidence highlights VIP's importance in brain activity, neuroendocrine regulation, cardiac function, respiration, digestion, and sexual potency.

Purpose of the Study:

• To review the mechanisms controlling vasoactive intestinal peptide (VIP) production.
• To elucidate the pathways regulating the diverse functions of VIP.
• To provide a comprehensive overview from the VIP gene to its multiple biological roles.

Main Methods:

• Review of existing literature on vasoactive intestinal peptide (VIP).
• Analysis of the VIP gene structure and expression.
• Examination of VIP's receptor-mediated signaling pathways and functional effects.

Main Results:

• VIP is a member of a peptide family, potentially evolved through gene and exon duplication.
• The human VIP gene comprises seven exons, with transcripts primarily in neurons.
• VIP regulates gene expression through neuronal and endocrine signals and exerts functions via cAMP signaling pathways.

Conclusions:

• Vasoactive intestinal peptide (VIP) is a multifunctional peptide with critical roles in neuronal survival, growth, and development.
• VIP acts as a neurotransmitter, neuromodulator, and secretagog, impacting a wide range of physiological processes.
• Understanding VIP's gene regulation and functional pathways is essential for comprehending its broad biological significance.