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Anacardic acid inhibits the proliferation and inflammation of HaCaT cells induced by TNF-α via the regulation of NF-κB pathway


Tao Liu
Yuanmin He
Yongmei Liao

Abstract

Purpose: To determine the effect of anacardic acid on HaCaT cells in vitro and to elucidate its molecular action.


Methods: HaCaT cells were incubated in varying concentrations of anacardic acid (10 to 50 μM). To model psoriasis, the cells were treated with tumor necrosis factor-α (TNF-α); cell viability was gauged by CCK-8 assay. Apoptosis was determined, and Bcl-2, Bax, p65, p-p65, p-IκBα and IκBα by Western blot. Levels of pro-inflammatory cytokines were evaluated by enzyme-linked immunosorbent assay (ELISA).


Results: Anacardic acid resulted in reduced HaCaT cell viability and increased cell apoptosis in a concentration-dependent manner (p < 0.05). It also curtailed TNF-α-mediated inflammatory responses and downregulated the NF-κB signaling axis.


Conclusion: The results indicate that anacardic acid impedes HaCaT cell growth and inflammatory cytokine production by interfering with NF-κB signal transduction, and may influence the development of AA-based therapies for psoriasis.


Journal Identifiers


eISSN: 1596-9827
print ISSN: 1596-5996