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dc.contributor.authorRatzon, Einav
dc.contributor.authorNajajreh, Yousef
dc.contributor.authorSalem, Rami
dc.contributor.authorKhamaisie, Hazem
dc.contributor.authorRuthardt, Martin
dc.contributor.authorMahajna, Jamal
dc.date.accessioned2018-09-04T11:31:07Z
dc.date.available2018-09-04T11:31:07Z
dc.date.issued2016-02-23
dc.identifier.urihttps://dspace.alquds.edu/handle/20.500.12213/833
dc.description.abstractBackground: Platinum-based drugs are used as cancer chemotherapeutics for the last 40 years. However, drug resistance and nephrotoxicity are the major limitations of the use of platinum-based compounds in cancer therapy. Platinum (IV) complexes are believed to act as platinum prodrugs and are able to overcome some of platinum (II) limitations. Methods: A number of previously sensitized platinum (IV) complexes were evaluated for their anti-cancer activity by monitoring ability to affect proliferation, clonigenicity and apoptosis induction of Cisplatin sensitive and resistant cancer cells. In addition, the uptake of Cisplatin and the platinum (IV) derivatives to Cisplatin sensitive and resistant cancer cells was monitored. Results: The bis-octanoatoplatinum (IV) complex (RJY13), a Cisplatin derivative with octanoate as axial ligand, exhibited strong anti-proliferative effect on the Cisplatin resistant and sensitive ovarian cells, A2780cisR and A2780, respectively. Moreover, RJY13 exhibited good activity in inhibiting clonigenicity of both cells. Anti-proliferative activity of RJY13 was mediated by induction of apoptosis. Interestingly, a bis-lauratopaltinum (IV) complex (RJY6) was highly potent in inhibiting clonigenicity of both Cisplatin sensitive and Cisplatin resistant cells, however, exhibited reduced activity in assays that utilize cells growing in two dimensional (2D) conditions. The uptake of Cisplatin was reduced by 30 % in A2780 in which the copper transporter-1 (Ctr1) was silenced. Moreover, uptake of RJY6 was marginally dependent on Ctr1, while uptake of RJY13 was Ctr1-independent. Conclusions: Our data demonstrated the potential of platinum (IV) prodrugs in overcoming acquired and inherited drug resistance in cancer cell lines. Moreover, our data demonstrated that the uptake of Cisplatin is partially dependent on Ctr1 transporter, while uptake of RJY6 is marginally dependent on Ctr1 and RJY13 is Ctr1-independent. In addition, our data illustrated the therapeutic potential of platinum (IV) prodrugs in cancer therapy.en_US
dc.description.sponsorshipThis work was supported in part by DFG-RU 728/3-2 to MR, YN and JM.en_US
dc.language.isoen_USen_US
dc.publisherBioMed Centralen_US
dc.subjectPlatinum (IV)en_US
dc.subjectCisplatinen_US
dc.subjectOvarian canceren_US
dc.subjectResistanceen_US
dc.subjectCopper transporter (Ctr1)en_US
dc.titlePlatinum (IV)-fatty acid conjugates overcome inherently and acquired Cisplatin resistant cancer cell lines: an in-vitro studyen_US
dc.typeArticleen_US


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