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Updated: May 29, 2026
07:14
A Flow Cytometry-based Assay for Measuring Mitochondrial Membrane Potential in Cardiac Myocytes After Hypoxia/Reoxygenation
Published on: July 13, 2018
The cannabinoid WIN 55212-2 mitigates apoptosis and mitochondrial dysfunction after hypoxia ischemia
D Alonso-Alconada1, A Alvarez, F J Alvarez
1Department of Cell Biology and Histology, School of Medicine and Dentistry, University of the Basque Country, Barrio Sarriena s/n, 48940 Leioa, Vizcaya, Spain.
Neurochemical Research
|September 13, 2011
Summary
Cannabinoid agonist WIN 55,212-2 protects fetal lambs from brain damage caused by perinatal asphyxia. This treatment reduces apoptotic cell death and preserves mitochondrial function following hypoxic-ischemic injury.
Area of Science:
- Neuroscience
- Perinatal Medicine
- Pharmacology
Background:
- Perinatal hypoxia-ischemia (HI) causes significant mortality and morbidity.
- Current treatments for HI are limited due to complex pathophysiology.
- There is a critical need for effective therapeutic interventions.
Purpose of the Study:
- To investigate the neuroprotective effects of the cannabinoid agonist WIN 55,212-2.
- To evaluate WIN 55,212-2's impact on apoptotic cell death and mitochondrial dysfunction in a fetal lamb model of perinatal asphyxia.
- To assess the potential of cannabinoid agonists as a treatment for neonatal brain injury.
Main Methods:
- Fetal lambs were subjected to 60 minutes of partial umbilical cord occlusion to induce hypoxic-ischemic injury.
- Animals received either WIN 55,212-2 (HI + WIN) or a vehicle (HI + VEH) after the insult.
- Brain tissues were analyzed using morphological studies, flow cytometry for apoptosis quantification, and assessment of mitochondrial integrity, transmembrane potential, and intracellular calcium levels.
Main Results:
- WIN 55,212-2 administration significantly reduced apoptotic cell death across all studied brain regions.
- The treatment effectively maintained mitochondrial integrity and functionality post-hypoxia-ischemia.
- Cannabinoid agonist treatment demonstrated a protective effect against cellular damage.
Conclusions:
- WIN 55,212-2 exhibits significant neuroprotective properties against perinatal hypoxic-ischemic injury in fetal lambs.
- The mechanism of protection involves the preservation of mitochondrial integrity and function.
- Cannabinoid agonists represent a promising therapeutic strategy for neonatal brain protection following asphyxia.
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