Fluorinated Cycloplatinated(II) Complexes Bearing Bisphosphine Ligands as Potent Anticancer Agents

by Shahsavari, H. R.; Hu, J. Y.; Chamyani, S.; Sakamaki, Y.; Aghakhanpour, R. B.; Salmon, C.; Fereidoonnezhad, M.; Mojaddami, A.; Peyvasteh, P.; Beyzavi, H.

A family of cationic cycloplatinated(II) complexes [Pt(dfppy)(P<^>P)]Cl incorporating bisphosphine ligands was prepared: (dfppy = 2-(2,4-difluorophenyl)pyridine; P<^>P = bis(diphenylphosphino)methane (1, dppm), 1,2-bis(diphenylphosphino)ethane (2, dppe), 1,2-bis(diphenylphosphino)benzene (3, dppbz)). The complexes were characterized by means of several analytical and spectroscopic methods. These complexes displayed acceptable stability in biological environments, which was confirmed by NMR, HR ESI-MS, and UV-vis techniques. The antiproliferative properties of these complexes were evaluated by the National Cancer Institute (NCI) against 60 different human tumor cell lines such as leukemia, melanoma, lung, colon, brain, ovary, breast, prostate, and kidney. These complexes showed higher cytotoxicity in comparison to cisplatin against a wide variety of cancer cell lines such as K-562 (leukemia), HOP-92 (lung), HCT-116 (colon), OVCAR-8 (ovarian), PC-3 (prostate), MDA-MB-468 (breast), and melanoma cancer cell lines. Complex 3, as the most potent compound in this study, furnished an excellent antiproliferative activity in comparison to cisplatin against Hela, SKOV3, and MCF-7 cancer cell lines. The main mode of the interactions of 1-3 with DNA was also determined using molecular docking studies.

Journal
Organometallics
Volume
40
Issue
1
Year
2021
Start Page
72-82
URL
https://dx.doi.org/10.1021/acs.organomet.0c00728
ISBN/ISSN
1520-6041; 0276-7333
DOI
10.1021/acs.organomet.0c00728