Related Experiment Video
Updated: Jul 1, 2026
08:54
Immunostaining of Biocytin-filled and Processed Sections for Neurochemical Markers
Published on: December 31, 2016
Expression and function of the endocannabinoid system in glial cells
Paola Massi1, Marta Valenti, Daniele Bolognini
1Department of Structural and Functional Biology, Center of Neuroscience, University of Insubria, Via A. da Giussano 10, 21052 Busto Arsizio (VA), Italy.
Current Pharmaceutical Design
|September 11, 2008
Summary
The endocannabinoid system regulates glia function, promoting cell survival and selectively killing tumor cells. Glial cells may use endocannabinoids as a defense against neuroinflammation and damage.
Area of Science:
- Neuroscience
- Cell Biology
- Pharmacology
Background:
- Glial cells play critical roles in central nervous system (CNS) function and pathology.
- The endocannabinoid system, including cannabinoid receptors and their ligands, is present in glia.
- Glial cell physiology differs significantly between healthy and pathological brain states.
Purpose of the Study:
- To review the role of the endocannabinoid system in glia functionality and disease.
- To explore the therapeutic potential of endocannabinoids as neuroprotective and anticancer agents.
Main Methods:
- Review of existing scientific literature on endocannabinoids and glia.
- Analysis of studies investigating cannabinoid receptor expression and function in glial cells.
- Examination of evidence for endocannabinoid signaling in neuropathological conditions.
Main Results:
- Endocannabinoids directly influence glial cell functions, promoting pro-survival pathways.
- Endocannabinoids induce selective death in glia-derived tumor cells.
- Glial cells in neuropathological conditions release more endocannabinoids and overexpress cannabinoid receptors, suggesting an endogenous defense mechanism.
Conclusions:
- Endocannabinoid signaling is a key regulator of glia function in both health and disease.
- Glial endocannabinoid production may serve as a natural defense against neuroinflammation and cell damage.
- The endocannabinoid system holds significant therapeutic potential for neuroprotection and cancer treatment.
Related Concept Videos
01:04Glial Cells
Overview
01:31Nervous Tissue: Glial Cells
Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial cells that interact...
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial cells that interact...
01:30Ligand-Gated Ion Channel Receptor: Gating Mechanism
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
01:22Opioid Receptors: Overview
Opioid receptors, including the mu (μ, MOR), delta (δ, DOR), and kappa (κ, KOR) types, belong to the rhodopsin family of G protein-coupled receptors. These receptors are located throughout the central and peripheral nervous systems and in non-neuronal tissues such as macrophages and astrocytes. Opioid receptor ligands can be categorized into agonists or antagonists. Highly selective agonists include [d-Ala2, MePhe4, Gly(ol)5]-enkephalin or DAMGO for MOR, [D-Pen2, D-Pen5]-enkephalin or DPDPE for...
01:24CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
CNS stimulants, such as cocaine, amphetamines, and cannabinoids, have varying structures and mechanisms of action that lead to different therapeutic effects and side effects. Cocaine, with its molecular formula C17H21NO4, is a tropane alkaloid and a tertiary amino compound. It has two chemical forms: the hydrochloride salt and the "freebase." The former is in powder form, while the latter involves removing the hydrochloride salt to create a form that can be smoked. Cocaine exerts its effects by...
01:11IP3/DAG Signaling Pathway
Membrane lipids such as phosphatidylinositol (PI) are precursors for several membrane-bound and soluble second messengers. Specific kinases phosphorylate PI and produce phosphorylated inositol phospholipids. One such inositol phospholipids are the phosphatidylinositol-4,5 bisphosphate [PI(4,5)P2], present in the inner half of the lipid bilayer. Upon ligand binding, GPCR stimulates Gq proteins to turn on phospholipase Cꞵ. Activated phospholipase Cꞵ cleaves PI(4,5)P2 and produces two-second...