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Updated: Jun 10, 2025
Anticancer Metal Complexes: Synthesis and Cytotoxicity Evaluation by the MTT Assay
Published on: November 10, 2013
Synthesis, anticancer activity, and mechanistic investigations of aryl-alkyl diorganotin arylformylhydrazone
Wujiu Jiang1, Qing Luo2, Wei Huang2
1Key Laboratory of Green Chemistry, Jiangxi Province, College of Chemistry and Materials, Jiangxi Normal University, Nanchang, Jiangxi 330022, China; Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, Hunan 421008, China.
Abstract:
Diorganotin acylhydrazone complexes with mitochondrial targeting demonstrate significant potential as replacements for platinum-based complexes due to their potent anticancer properties. Twelve methylphenyltin arylformylhydrazone complexes have been synthesized by microwave "one-pot" reaction. The complexes have been characterized by FT-IR, multinuclear NMR (1H, 13C, and 119Sn), TGA, and HRMS. Crystal structures were determined for 10 out of the 12 complexes under study. Structures 1 through 8, 10 and 12 possessed a central symmetric structure of a di-nuclear Sn2O2 tetrahedral ring. All complexes were tested for their inhibitory activity against human cell lines NCI-H460, MCF-7, and HepG2. Complex 8 exhibited the most effective inhibitory effect on HepG2 cells, with an IC50 value of 1.34 ± 0.04 μM. Preliminary studies on the anticancer mechanism suggest that complex 8 induces apoptosis in HepG2 cells via the mitochondrial pathway, accompanied by G2/M phase cell cycle arrest.
Insights
New diorganotin acylhydrazone complexes show promise as anticancer agents, potentially replacing platinum-based drugs. Complex 8 effectively inhibited HepG2 cancer cells by inducing apoptosis and cell cycle arrest.
Area of Science:
- Organometallic Chemistry
- Medicinal Chemistry
- Cancer Biology
Background:
- Platinum-based drugs are standard chemotherapy but have limitations.
- Diorganotin complexes offer potential anticancer alternatives with unique mechanisms.
- Mitochondrial targeting enhances drug efficacy and reduces side effects.
Purpose of the Study:
- Synthesize novel methylphenyltin arylformylhydrazone complexes.
- Evaluate their anticancer activity against human cancer cell lines.
- Investigate the mechanism of action for promising compounds.
Main Methods:
- Microwave-assisted "one-pot" synthesis of 12 tin complexes.
- Characterization using FT-IR, NMR (1H, 13C, 119Sn), TGA, and HRMS.
- Crystal structure determination for 10 complexes and in vitro cytotoxicity assays.
Main Results:
- Successful synthesis and characterization of 12 diorganotin complexes.
- Complex 8 demonstrated potent inhibition against HepG2 cells (IC50 = 1.34 ± 0.04 μM).
- Complex 8 induced apoptosis via the mitochondrial pathway and G2/M cell cycle arrest.
Conclusions:
- Methylphenyltin arylformylhydrazone complexes are promising anticancer candidates.
- Complex 8 exhibits significant cytotoxicity and a clear mechanism of action.
- Further development could lead to novel platinum-free chemotherapy agents.
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