Abstract
Background
Artemisinin (ART) and its derivatives are important antimalaria agents and have received increased attention due to their broad biomedical effects, such as anticancer and anti-inflammation activities. Recently, ruthenium-derived complexes have attracted considerable attention as their anticancer potentials were observed in preclinical and clinical studies.
Methods
To explore an innovative approach in colorectal cancer (CRC) management, we synthesized ruthenium–dihydroartemisinin complex (D–Ru), a novel metal-based artemisinin derivative molecule, and investigated its anticancer, anti-inflammation, and adaptive immune regulatory properties.
Results
Compared with its parent compound, ART, D–Ru showed stronger antiproliferative effects on the human CRC cell lines HCT-116 and HT-29. The cancer cell inhibition of D–Ru comprised G1 cell cycle arrest via the downregulation of cyclin A and the induction of apoptosis. ART and D–Ru downregulated the expressions of pro-inflammatory cytokines IL-1β, IL-6, and IL-8. Although ART and D–Ru did not suppress Treg cell differentiation, they significantly inhibited Th1 and Th17 cell differentiation.
Conclusions
Our results demonstrated that D–Ru, a novel ruthenium complexation of ART, remarkably enhanced its parent compound’s anticancer action, while the anti-inflammatory potential was not compromised. The molecular mechanisms of action of D–Ru include inhibition of cancer cell growth via cell cycle arrest, induction of apoptosis, and anti-inflammation via regulation of adaptive immunity.
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Data availability
The data sets generated and analyzed during the current study are available from the corresponding author on reasonable request.
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This work was supported in part by the Tang Foundations, and the NIH/NIDDK grant 5P30DK042086.
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Project administration: CZW, CSY. Participated in research design: CHL, CFZ, QHZ, TLJ, LH. Conducted experiment: CZW, CW, GGL, YL, QM, AHW. Wrote an original draft preparation: CZW, ML, CSY. Performed data analysis: CW, YL. Edited and reviewed: CZW, CHL, TLJ, CSY.
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Wang, CZ., Wan, C., Li, CH. et al. Ruthenium–dihydroartemisinin complex: a promising new compound for colon cancer prevention via G1 cell cycle arrest, apoptotic induction, and adaptive immune regulation. Cancer Chemother Pharmacol 93, 411–425 (2024). https://doi.org/10.1007/s00280-023-04623-7
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DOI: https://doi.org/10.1007/s00280-023-04623-7