Xue-Lian Li, Meng-Fan Wang, Li-Zhen Zeng, Guo-Kui Li, Run-Yu Zhao, Fu-Dan Liu, Yun Li, Yu-Fei Yan, Qishuai Liu, Zhao Li, Hongbin Zhang, Xiaoxia Ren, Feng Gao
A planar conjugated ligand functionalized with bithiophene and its Ru(II), Os(II), and Ir(III) complexes have been constructed as single-molecule platform for synergistic photodynamic, photothermal, and chemotherapy. The complexes have significant two-photon absorption at 808 nm and remarkable singlet oxygen and superoxide anion production in aqueous solution and cells when exposed to 808 nm infrared irradiation. The most potent Ru(II) complex Ru7 enters tumor cells via the rare macropinocytosis, locates in both nuclei and mitochondria, and regulates DNA-related chemotherapeutic mechanisms intranuclearly including DNA topoisomerase and RNA polymerase inhibition and their synergistic effects with photoactivated apoptosis, ferroptosis and DNA cleavage...
April 24, 2024: Angewandte Chemie