THC and CBD Both Suppress Immune B-Cells But Through Different Metabolic Pathways
THC and CBD both inhibit B-cell activation in mice, but they do so through distinct metabolic mechanisms, and their effects differ between young and aged animals.
Quick Facts
What This Study Found
Both cannabinoids reduced B-cell activation dose-dependently, but THC selectively reduced certain amino acids while CBD increased citrulline and allantoin. Effects differed between young and aged mice, suggesting age-related endocannabinoid system changes affect cannabinoid sensitivity.
Key Numbers
Dose-dependent inhibition by both THC and CBD. Both reduced glucose-6-phosphate and pentose phosphate pathway metabolites. THC uniquely reduced specific amino acids. CBD uniquely increased citrulline and allantoin.
How They Did This
In vitro study comparing THC and CBD effects on LPS/IL-4-activated murine B lymphocytes from young and aged mice, measuring phenotype, proliferation, antibody secretion, TNF-alpha, ERK phosphorylation, and cellular metabolomics.
Why This Research Matters
Understanding how cannabinoids affect the immune system differently — and how this changes with age — is critical for evaluating both therapeutic applications and risks, especially as cannabis use increases among older adults.
The Bigger Picture
Cannabis immunology is complex and age-dependent. As cannabis use grows among older adults for pain and other conditions, understanding age-specific immune effects becomes increasingly important for informed medical guidance.
What This Study Doesn't Tell Us
In vitro study using mouse cells — human immune responses may differ. LPS/IL-4 activation is a simplified model. Metabolomic changes may not translate to functional immune outcomes.
Questions This Raises
- ?Should cannabis dosing recommendations differ by age based on immune effects?
- ?Could CBD's distinct metabolic profile make it safer for immunocompromised individuals than THC?
Trust & Context
- Key Stat:
- Evidence Grade:
- Novel metabolomic comparison revealing mechanism-level differences, but in vitro mouse cell study with limited direct clinical applicability.
- Study Age:
- Recent study providing the first metabolomic comparison of THC vs. CBD effects on immune cells across age groups.
- Original Title:
- Differential metabolic pathways underlie THC- and CBD-mediated inhibition of B-cell activation in both young and aged mice.
- Published In:
- Frontiers in immunology, 16, 1605474 (2025)
- Authors:
- Yekhtin, Zhanna(3), Petukhov, Dmytro, Khuja, Iman(4), Kogan, Natalya M, Or, Reuven, Almogi-Hazan, Osnat
- Database ID:
- RTHC-08000
Evidence Hierarchy
Frequently Asked Questions
Do THC and CBD affect the immune system the same way?
No — while both suppress B-cell activation, they do so through distinct metabolic pathways. THC reduces certain amino acids while CBD increases citrulline and allantoin, suggesting fundamentally different mechanisms.
Does age change how cannabinoids affect immunity?
Yes — this study found that THC and CBD effects on B-cells differed between young and aged mice, likely due to age-related changes in the endocannabinoid system.
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Cite This Study
https://rethinkthc.com/research/RTHC-08000APA
Yekhtin, Zhanna; Petukhov, Dmytro; Khuja, Iman; Kogan, Natalya M; Or, Reuven; Almogi-Hazan, Osnat. (2025). Differential metabolic pathways underlie THC- and CBD-mediated inhibition of B-cell activation in both young and aged mice.. Frontiers in immunology, 16, 1605474. https://doi.org/10.3389/fimmu.2025.1605474
MLA
Yekhtin, Zhanna, et al. "Differential metabolic pathways underlie THC- and CBD-mediated inhibition of B-cell activation in both young and aged mice.." Frontiers in immunology, 2025. https://doi.org/10.3389/fimmu.2025.1605474
RethinkTHC
RethinkTHC Research Database. "Differential metabolic pathways underlie THC- and CBD-mediat..." RTHC-08000. Retrieved from https://rethinkthc.com/research/yekhtin-2025-differential-metabolic-pathways-underlie
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.