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Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
Published on: May 28, 2014
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Dinuclear Platinum(II) Complexes with Bone-Targeting Groups as Potential Anti-Osteosarcoma Agents
Zhenqin Zhang1,2, Xiaoyong Wang3, Cheng Luo1
1State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
Chemistry, an Asian Journal
|May 31, 2017
Summary
New dinuclear platinum(II) complexes show promise for treating osteosarcoma. Complex 2 effectively targets U2OS cells, inducing apoptosis and cell cycle arrest, offering a potential new therapy for this bone cancer.
Area of Science:
- Inorganic Chemistry
- Medicinal Chemistry
- Oncology
Background:
- Osteosarcoma is a prevalent bone cancer in adolescents.
- Conventional platinum anticancer drugs exhibit general toxicity.
- Targeted platinum(II) complexes offer a potential alternative to reduce toxicity.
Purpose of the Study:
- To design and synthesize novel dinuclear platinum(II) complexes.
- To evaluate the efficacy of these complexes against osteosarcoma cells.
- To investigate the mechanism of action of the most potent complex.
Main Methods:
- Synthesis and characterization of four dinuclear platinum(II) complexes using NMR and HR-MS.
- ICP-MS to determine platinum accumulation in U2OS cells.
- DNA interaction studies using CD and gel electrophoresis.
- In vitro cytotoxicity assays, flow cytometry for cell cycle and apoptosis analysis.
Main Results:
- Four dinuclear platinum(II) complexes were successfully synthesized and characterized.
- Significant platinum accumulation was observed in U2OS osteosarcoma cells.
- Complex 2 demonstrated the highest in vitro cytotoxicity against U2OS cells.
- Complex 2 induced apoptosis and G2/M cell cycle arrest in U2OS cells.
Conclusions:
- Dinuclear platinum(II) complexes with bone-targeting moieties are effective against osteosarcoma.
- Complex 2 exhibits potent anticancer activity through apoptosis induction and cell cycle arrest.
- These findings support the development of targeted platinum complexes as osteosarcoma therapeutics.
