CBD inhibited pro-inflammatory M1 macrophage polarization by interfering with metabolic reprogramming and the PI3K/Akt signaling pathway, while also affecting M2 anti-inflammatory responses.
immunology researchers, cannabinoid pharmacologists, anti-inflammatory drug developers
What the researchers found
CBD inhibited IL-6 and nitric oxide production without affecting TNF-alpha in M1-polarized macrophages. CBD disrupted metabolic flux and PI3K/Akt pathway signaling, which are required for pro-inflammatory macrophage activation. The effect was observed in murine bone marrow-derived macrophages.
Why it matters
Understanding how CBD modulates immune cells at the molecular level helps explain its anti-inflammatory effects and could guide the development of more targeted cannabinoid-based therapies.
The numbers in context
CBD inhibited: IL-6 production, nitric oxide production. CBD did not affect: TNF-alpha production. Pathway: PI3K/Akt disruption. Metabolic flux: altered in M1 polarization.
How the study worked
In vitro study using murine bone marrow-derived macrophages. Assessed CBD effects on M1 (LPS+IFN-gamma) and M2 polarization. Measured cytokine production, metabolic flux, and signaling pathway activation.
What this study cannot tell us
Murine cells only. In vitro conditions do not replicate the complex immune environment. Single cannabinoid tested. Concentrations used may not reflect achievable tissue levels in vivo.
How to read the evidence
Detailed mechanistic in vitro study but using murine cells without in vivo validation places at preliminary.
When this study was published
Recently published laboratory research.
The bigger picture
The selectivity of CBD's effects (blocking some but not all inflammatory mediators) suggests a nuanced immunomodulatory profile rather than blanket immunosuppression, which could be therapeutically advantageous.
Questions still open
- Do these metabolic effects occur at physiologically relevant CBD concentrations?
- Would these findings translate to human macrophages?
Common questions
How does CBD reduce inflammation?
Does this mean CBD is an immunosuppressant?
Read the original research
Cannabidiol perturbs macrophage polarization by interfering with the metabolic flux and PI3K/Akt pathway.
Scientific reports, 16(1), 3514
Citation
Sukdee, Thadaphong; Wongprom, Benjawan; Pattarakarnkul, Thitiporn; Leelahavanichkul, Asada; Charoensappakit, Awirut; Sae-Khow, Kritsanawan; Yukhet, Phanomsak; Vilaivan, Tirayut; Palaga, Tanapat. (2025). Cannabidiol perturbs macrophage polarization by interfering with the metabolic flux and PI3K/Akt pathway.. Scientific reports, 16(1), 3514. https://doi.org/10.1038/s41598-025-33360-5
Explore the wider topic
- CBD Oil Quality Guide: How to Avoid Snake Oil
- Anxiety After Quitting Weed: When to Consider Medication
- Cannabis for Chemotherapy Nausea: What the Evidence Actually Shows
- Cannabis for Chronic Pain: What the Research Actually Supports
- Cannabis and Epilepsy: The Epidiolex Story and What It Means
- Does CBD Actually Work for Anxiety? What the Evidence Shows
- Does CBD Help with Weed Withdrawal? What Studies Show
- CBD vs THC: The Differences That Actually Matter
- The Proven Medical Benefits of Cannabis: What Research Supports
- Quitting Weed Before Surgery
- Weed and Medications: What Changes When You Quit
- Quitting Weed During Pregnancy: What You Need to Know
- Quitting Weed While Pregnant: What You Need to Know
- Cannabis and Older Adults: Risks Seniors Should Know
- Cannabis and Breastfeeding: THC in Breast Milk