Journal of Medicinal Chemistry p. 9035 - 9046 (2016)
Update date:2022-08-31
Topics:
Abu Ammar, Aiman
Raveendran, Raji
Gibson, Dan
Nassar, Taher
Benita, Simon
Side effects and acquired resistance by cancer cells limit the use of platinum anticancer drugs. Modification of oxaliplatin (OXA) into a lipophilic Pt(IV) complex [Pt(DACH)(OAc)(OPal)(ox)] (1), containing both lipophilic and hydrophilic axial ligands, was applied to improve performance and facilitate incorporation into polymeric nanoparticles. Complex 1 exhibited unique potency against a panel of cancer cells, including cisplatin-resistant tumor cells. [Pt(DACH)(OAc)(OPal)(ox)] incorporated nanoparticles (2) presented a mean diameter of 146 nm with encapsulation yields above 95% as determined by HPLC. Complexes 1 and 2 showed enhanced in vitro cellular Pt accumulation, DNA platination, and antiproliferative effect compared to OXA. Results of an orthotopic intraperitoneal model of metastatic ovarian cancer (SKOV-3) and a xenograft subcutaneous model of colon (HCT-116) tumor in SCID-bg mice showed that the activity of 1 and 2 significantly decreased tumor growth rates compared to control and OXA treatment groups. Consequently, these findings warrant further development toward clinical translation.
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