Plant-derived indole alkaloids in chronic inflammatory diseases: molecular mechanisms, therapeutic potential and translational challenges.
Kapil MJ, Basak M, Dutta KN, Sahariah BJ, Sharma Bora N
Medicinal Plants
Plants growing in traditional herb gardens around the world have quietly been making chemicals that scientists now believe could help treat some of the most stubborn inflammatory diseases plaguing modern medicine, from arthritis to inflammatory bowel disease.
Many plants produce natural chemicals called indole alkaloids that act like a multi-tool against the body's runaway inflammation — the kind that drives diseases like arthritis, colitis, and certain cancers. Unlike most drugs that hit just one target, these plant compounds were found to calm several different inflammatory processes at once, while also boosting the body's own defenses against cellular damage. The big challenge is that most of the exciting results come from lab dishes and animal experiments, so scientists still need to figure out how to get these compounds to work safely and reliably in people.
Key Findings
Plant-derived indole alkaloids suppress at least six major pro-inflammatory signaling molecules — including TNF-α, IL-1β, IL-6, COX-2, and iNOS — while simultaneously enhancing antioxidant defenses.
Protective effects were demonstrated across six distinct chronic disease categories: colitis, osteoarthritis, COPD, atherosclerosis, chronic kidney disease, and inflammation-driven cancers.
Tryptophan-derived indole alkaloids uniquely activate the AhR signaling pathway, which links gut microbiome activity to organ-level inflammation and opens a potential route to microbiome-targeted therapies.
chevron_right Technical Summary
A comprehensive review finds that plants produce a class of compounds called indole alkaloids that can simultaneously suppress multiple drivers of chronic inflammation, showing promise against arthritis, gut disease, lung conditions, and inflammation-linked cancers. Nearly all supporting evidence comes from lab and animal studies, so clinical translation remains the next frontier.
Abstract Preview
Chronic inflammatory diseases are major global health challenges driven by persistent oxidative stress and dysregulated immune signalling. Plant-derived indole alkaloids are structurally diverse me...
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