Lab study ranks cannabinoids by anti-inflammatory potency in human immune cells, with THC most active and terpenes showing minimal effects
Testing 11 cannabis compounds in human immune cells, THC showed the broadest anti-inflammatory activity, followed by cannabidivarin and cannabigerol, while commonly promoted terpenes showed minimal immunological effects.
Quick Facts
What This Study Found
Of 21 immune parameters tested, THC affected 11, followed by cannabidivarin (CBDV), cannabigerol (CBG), cannabichromene (CBC), cannabinol (CBN), and CBD with the fewest effects. Among terpenes, alpha-pinene showed the most activity, linalool and phytol had modest effects, and limonene had no detectable immune activity at all.
Key Numbers
6 cannabinoids and 5 terpenes tested across 21 immune parameters. THC affected 11 parameters. Limonene affected 0 parameters. Concentrations ranged from 0.001 to 10 μM.
How They Did This
Human peripheral blood mononuclear cells (PBMCs) were pretreated with individual cannabinoids or terpenes at 0.001-10 μM concentrations, then stimulated to activate dendritic cells, monocytes, or T cells. Proliferation, activation markers, cytokine production, and phagocytosis were measured.
Why This Research Matters
This study directly compares the immune effects of multiple cannabis compounds side by side in human cells, providing data to evaluate popular claims about terpenes and minor cannabinoids.
The Bigger Picture
The finding that commonly promoted terpenes like limonene showed no measurable immune activity challenges marketing claims about terpene profiles driving cannabis effects, while lesser-known cannabinoids like CBDV showed surprising potency.
What This Study Doesn't Tell Us
In vitro study using isolated immune cells, not whole organisms. Single-compound testing does not capture potential synergistic or entourage effects. Concentrations may not reflect physiologically achieved levels. Only anti-inflammatory properties tested.
Questions This Raises
- ?Would these compounds behave differently in combination (entourage effect)?
- ?Are the concentrations tested achievable through normal cannabis use?
- ?Could CBDV be developed as an anti-inflammatory therapeutic?
Trust & Context
- Key Stat:
- THC affected 11 of 21 immune parameters; limonene affected zero
- Evidence Grade:
- Rigorous in vitro methodology with human cells, but results may not translate directly to whole-body effects.
- Study Age:
- Published in 2022.
- Original Title:
- Evaluation of the anti-inflammatory effects of selected cannabinoids and terpenes from Cannabis Sativa employing human primary leukocytes.
- Published In:
- Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 170, 113458 (2022)
- Authors:
- Blevins, Lance K(2), Bach, Anthony P, Crawford, Robert B(5), Zhou, Jiajun, Henriquez, Joseph E, Rizzo, Michael D, Sermet, Sera, Khan, D M Isha Olive, Turner, Helen, Small-Howard, Andrea L, Kaminski, Norbert E
- Database ID:
- RTHC-03717
Evidence Hierarchy
Tests effects in animals (usually mice or rats), not humans.
What do these levels mean? →Frequently Asked Questions
Do cannabis terpenes have anti-inflammatory properties?
In this study, most terpenes showed minimal to no anti-inflammatory activity in human immune cells. Alpha-pinene was the most active, but limonene, one of the most common cannabis terpenes, had no effect on any of the 21 immune parameters tested.
Which cannabinoid was most anti-inflammatory?
THC had the broadest anti-inflammatory activity, affecting 11 of 21 immune parameters. It was followed by cannabidivarin (CBDV), cannabigerol (CBG), cannabichromene (CBC), and cannabinol (CBN), with CBD showing the least activity.
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Cite This Study
https://rethinkthc.com/research/RTHC-03717APA
Blevins, Lance K; Bach, Anthony P; Crawford, Robert B; Zhou, Jiajun; Henriquez, Joseph E; Rizzo, Michael D; Sermet, Sera; Khan, D M Isha Olive; Turner, Helen; Small-Howard, Andrea L; Kaminski, Norbert E. (2022). Evaluation of the anti-inflammatory effects of selected cannabinoids and terpenes from Cannabis Sativa employing human primary leukocytes.. Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 170, 113458. https://doi.org/10.1016/j.fct.2022.113458
MLA
Blevins, Lance K, et al. "Evaluation of the anti-inflammatory effects of selected cannabinoids and terpenes from Cannabis Sativa employing human primary leukocytes.." Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 2022. https://doi.org/10.1016/j.fct.2022.113458
RethinkTHC
RethinkTHC Research Database. "Evaluation of the anti-inflammatory effects of selected cann..." RTHC-03717. Retrieved from https://rethinkthc.com/research/blevins-2022-evaluation-of-the-antiinflammatory
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.