Related Experiment Video
Updated: Sep 23, 2025
Rapid and Refined CD11b Magnetic Isolation of Primary Microglia with Enhanced Purity and Versatility
Published on: April 13, 2017
Exploring the Pro-Phagocytic and Anti-Inflammatory Functions of PACAP and VIP in Microglia: Implications for Multiple
Margo I Jansen1, Sarah Thomas Broome1, Alessandro Castorina1
1Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia.
Abstract:
Multiple sclerosis (MS) is a chronic neuroinflammatory and demyelinating disease of the central nervous system (CNS), characterised by the infiltration of peripheral immune cells, multifocal white-matter lesions, and neurodegeneration. In recent years, microglia have emerged as key contributors to MS pathology, acting as scavengers of toxic myelin/cell debris and modulating the inflammatory microenvironment to promote myelin repair. In this review, we explore the role of two neuropeptides, pituitary adenylate cyclase-activating polypeptide (PACAP) and vasoactive intestinal peptide (VIP), as important regulators of microglial functioning during demyelination, myelin phagocytosis, and remyelination, emphasising the potential of these neuropeptides as therapeutic targets for the treatment of MS.
Insights
Pituitary adenylate cyclase-activating polypeptide (PACAP) and vasoactive intestinal peptide (VIP) regulate microglia in multiple sclerosis (MS). These neuropeptides show potential for treating MS by influencing demyelination and remyelination processes.
Area of Science:
- Neuroimmunology
- Central Nervous System Disorders
- Neuropeptide Signaling
Background:
- Multiple sclerosis (MS) is a chronic CNS disease involving neuroinflammation and demyelination.
- Microglia are central to MS pathology, clearing debris and influencing repair.
- Pituitary adenylate cyclase-activating polypeptide (PACAP) and vasoactive intestinal peptide (VIP) are key neuropeptides.
Purpose of the Study:
- To review the role of PACAP and VIP in microglial function during MS.
- To highlight their involvement in demyelination, myelin phagocytosis, and remyelination.
- To emphasize their therapeutic potential for MS treatment.
Main Methods:
- Literature review of studies on PACAP, VIP, and microglia in MS.
- Analysis of neuropeptide regulation of microglial responses in demyelinating conditions.
- Synthesis of evidence on therapeutic targeting of PACAP and VIP for MS.
Main Results:
- PACAP and VIP modulate microglial activity crucial for myelin repair.
- These neuropeptides influence key processes like demyelination and phagocytosis.
- Evidence suggests PACAP and VIP can promote remyelination.
Conclusions:
- PACAP and VIP are significant regulators of microglial function in MS.
- Targeting PACAP and VIP offers a promising therapeutic avenue for MS.
- Further research into these neuropeptides could advance MS treatment strategies.
Related Concept Videos
01:25Immune Surveillance by NK Cells and Phagocytes
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
01:28Inflammatory Response
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...