ArticleJournal of inorganic biochemistry2014
Cytotoxicity of cyclometalated platinum complexes based on tridentate NCN and CNN-coordinating ligands: remarkable coordination dependence.
Article in Journal of inorganic biochemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Cytotoxicity and antimicrobial activity of platinum(II) complexes based on the ligand precursor 2-phenyl-6-(1,2,3-triazol-4-yl)pyridine - influence of substituent and ancillary ligand on selectivity and activity.Zeitschrift fur Naturforschung. C, Journal of biosciences · 2026Article
- Aggregation, Photoluminescence, and Cytotoxicity of Pt(II) and Re(I) Complexes Bearing Multimodal-Coordinating Luminophores.Chemistry (Weinheim an der Bergstrasse, Germany) · 2025Article
- Synthesis and Biological Activities of Luminescent 5,6-Membered Bis(Metallacyclic) Platinum(II) Complexes.Molecules (Basel, Switzerland) · 2023Article
- Synthesis and Photophysical Properties of α-(Molecules (Basel, Switzerland) · 2022Article
- Asymmetrically Functionalized 1,3-Di(2-pyridyl)benzenes: Synthesis and Photophysical Studies.Journal of fluorescence · 2022Article
- Influence of Ligand and Nuclearity on the Cytotoxicity of Cyclometallated C^N^C Platinum(II) Complexes.Chemistry (Weinheim an der Bergstrasse, Germany) · 2020Article
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Authors and funding
4 authors.
Funding
Abstract
A series of cyclometalated platinum complexes with diverse coordination patterns and geometries were screened for their anticancer activity. It was discovered that the N^C^N-coordinated platinum complex based on 1,3-di(pyridyl)benzene displayed much higher cytotoxicity against human lung cancer cells NCI-H522, HCC827, and NCI-H1299, and human prostate cancer cell RV1 than cisplatin. In a sharp contrast, the C^N^N-coordinated platinum complex based on 6-phenyl-2,2'-bipyridine was ineffective on these cancer cells. This remarkable difference in cytotoxicity displayed by N^C^N- and C^N^N-coordinated platinum complexes was related to the trans effect of the carbon donor in the cyclometalated platinum complexes, which played a crucial role in facilitating the dissociation of the chloride ligand to create an active binding site. The DNA binding was studied for the N^C^N-coordinated platinum complex using electrophoresis and emission titration. The cellular uptake observed by fluorescent microscope showed that the complex is largely concentrated in the cytoplasm. The possible pathways for the cell apoptosis were studied by western blot analysis and the activation of PARP via caspase 7 was observed.
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