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Anti-rheumatoid arthritis potential of Acorus calamus L. extract by interleukin-17 inhibition: Molecular insights through an in silico study
Summary
This paper is not about microplastics. It is a pharmacology study that investigated natural compounds from Acorus calamus plant extract as potential treatments for rheumatoid arthritis by targeting the inflammatory protein interleukin-17. The study uses molecular docking simulations and drug analysis with no connection to microplastic pollution or health effects.
Context: Interleukin-17 (IL-17) is a pro-inflammatory cytokine that plays a crucial role in immunity and inflammation. Aims: To evaluate the potential therapeutic effects of two compounds, magnosalicine and neotatarine, derived from the ethanolic extract of Acorus calamus L. rhizome, against IL-17. Methods: Utilizing LC/MS analysis combining molecular docking simulations, drug likeness, ADME and toxicity analysis. This study explored the molecular interactions and binding affinities of identified compounds from A. calamus with crucial residues of IL-17, including Tyr62, Pro63, Ile66, Gln94, Ile96, Leu97, and Leu99. Results: The results revealed that magnosalicine and neotatarine exhibited remarkable binding affinities of -10.16 kcal/mol and -9.53 kcal/mol, respectively, indicating their strong interactions with IL-17. Moreover, both compounds displayed superior binding energies compared to other extract constituents. Interestingly, this study highlighted that all terpenoid compounds from the A. calamus rhizome extract were capable of interacting with these key residues of IL-17, resembling the interactions observed with the natural ligand (RMK) and methotrexate. Meanwhile, the analysis results revealed a safer ADME and toxicity profile for neotatarine compared to magnolalicine. Conclusions: This research unveils the promising potential of neotatarine as candidates for further exploration in therapeutic interventions targeting IL-17-related pathways. These findings shed light on the molecular insights of Acorus calamus L. compounds, providing valuable information for developing novel treatments for IL-17-associated disorders.