Mechanism: propolis can downregulate TLR4/MyD88/IRAK4/TRIF/NLRP/NF-kB pathways and associated inflammatory cytokines.
In general, we summarize that propolis acts as an anti-inflammatory substance by inhibiting and downregulating TLR4, MyD88, IRAK4, TRIF, NLRP inflammasomes, NF-κB, and their associated pro-inflammatory cytokines such as IL-1β, IL-6, IFN-γ, and TNF-α.
Recent Update on the Anti-Inflammatory Activities of Propolis.
Evidence scope. Systematic review synthesizing mechanistic literature from 2017-2022 (mixed human/animal/in vitro sources); mechanism-only claim.