A new article published in the BIO Integration journal examines the growing use of phytochemicals and medicinal plants for treating autoimmune diseases, specifically rheumatoid arthritis (RA). RA is a chronic inflammatory condition that mainly affects joints, leading to pain, reduced mobility, and joint damage.
The review highlights that oxidative stress, synovial hyperplasia, immune cell infiltration, and the production of pro-inflammatory cytokines like TNF-α and IL-6 are central to RA's development. Conventional treatments for RA include biologics, nonsteroidal anti-inflammatory drugs (NSAIDs), and disease-modifying antirheumatic drugs (DMARDs). However, these treatments may lose effectiveness over time or cause adverse effects.
According to the article, herbal medicine offers an alternative approach. The review focuses on several types of phytochemicals—lignans, flavonoids, alkaloids, terpenoids, and phenolic compounds—and their roles in targeting pro-inflammatory cytokines such as TNF-α and IL-6. It also discusses how these compounds interact with molecular pathways including NF-κB, MAPK, and Nrf2/HO-1.
The authors state: "This review provides an in-depth analysis of the pathophysiology of RA, therapeutic targets, drug resistance, and current therapeutic boundaries, with a focus on the roles of phytochemicals such as lignans, flavonoids, alkaloids, terpenoids, and phenolic compounds."
They add: "By targeting key pro-inflammatory cytokines such as TNF-α and IL-6, and reformed molecular pathways such as those involving NF-κB, MAPK, and Nrf2/HO-1, these phytochemicals have potent anti-inflammatory and anti-rheumatoid arthritis properties."
The findings suggest that phytotherapy could serve as a complementary strategy alongside standard medical treatments for RA.