Anandamide and oleamide showed anti-proliferative effects in glioblastoma cells by disrupting mitochondrial function through PPAR-gamma receptors, while sparing normal brain cells, suggesting a non-classical cannabinoid mechanism against brain cancer.
Neuro-oncology researchers, scientists studying endocannabinoid biology, and those interested in non-classical cannabinoid receptor pathways.
Endocannabinoids selectively killed cancer cells via mitochondrial disruption
What the researchers found
Anandamide (AEA) and oleamide (ODA) reduced glioblastoma cell viability and increased lipid peroxidation compared to normal astrocytes. Both reduced mitochondrial membrane potential and impaired Complex I activity in C6 cells. The PPAR-gamma antagonist GW9662 showed differential effects, indicating PPAR-gamma involvement varies by cell type.
Why it matters
Unlike the CBD kidney cancer study (RTHC-08638), these endocannabinoids showed selectivity for cancer cells over normal brain cells, and they work through a non-classical receptor pathway (PPAR-gamma) that could be more therapeutically accessible.
The numbers in context
Two glioblastoma lines (C6, RG2) vs. primary astrocyte controls. AEA and ODA reduced viability and increased lipid peroxidation in cancer but not normal cells. Mitochondrial membrane potential decreased in C6 but not RG2. Complex I inhibited in C6 cells.
How the study worked
In vitro study using two glioblastoma cell lines (C6 and RG2) and primary astrocyte cultures as non-tumor controls. Cell viability, lipid peroxidation, mitochondrial membrane potential, and Complex I activity were measured after AEA and ODA treatment, with and without the PPAR-gamma antagonist GW9662.
What this study cannot tell us
In vitro study only. Two glioblastoma cell lines showed different responses, suggesting results are cell-type dependent. Endocannabinoid concentrations used may not reflect physiological brain levels. Primary astrocytes may not perfectly represent all normal brain cell types.
How to read the evidence
Preliminary: in vitro study with two cell lines showing differential responses and mechanistic complexity.
When this study was published
Published 2026.
The bigger picture
Glioblastoma remains one of the most lethal cancers. The finding that endocannabinoids selectively target cancer cell mitochondria through PPAR-gamma, rather than classical CB1/CB2 receptors, opens a distinct therapeutic avenue from traditional cannabinoid approaches.
Questions still open
- Why do C6 and RG2 glioblastoma cells respond differently to mitochondrial disruption? Could PPAR-gamma agonists be combined with standard glioblastoma treatment? Do these endocannabinoid-mitochondrial effects occur in vivo?
Common questions
Can the body's own cannabinoids fight brain cancer?
How is this different from CBD cancer research?
Read the original research
The Anti-proliferative Effects of Anandamide and Oleamide in Glioblastoma Cell Lines Recruit Mitochondrial and PPAR-γ Receptor Modulation.
Neurochemical research, 51(1), 43
Citation
Torres-Román, Ana Laura; Ortega-Gómez, Alette; Reyes-Soto, Carolina Y; Aparicio-Trejo, Omar Emiliano; Cuevas-López, Belén; García-Arroyo, Fernando E; Ruíz-García, Erika; Matus-Santos, Juan A; Ferrer, Beatriz; Aschner, Michael; Jardón, Gustavo; López-Goerne, Tessy; Molina-Hernández, Anayansi; Tenorio-Monterrubio, Juan Carlos; Santamaría, Abel. (2026). The Anti-proliferative Effects of Anandamide and Oleamide in Glioblastoma Cell Lines Recruit Mitochondrial and PPAR-γ Receptor Modulation.. Neurochemical research, 51(1), 43. https://doi.org/10.1007/s11064-025-04654-x
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