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Title 

An in vivo active 1,2,5-oxadiazole Pt(II) complex: A promising anticancer agent endowed with STAT3 inhibitory properties

Authors 

F PortaG FacchettiN FerriA GelainF MeneghettiS VillaD BarloccoD MasciocchiA AsaiN MiyoshiS MarchianoByoung-Mog KwonYena JinV GandinC MarzanoI Rimoldi

Publisher 

Elsevier

Issue Date 

2017

Citation 

European Journal of Medicinal Chemistry

Keywords 

Antitumor agentsCytotoxic activityDNA-interactionPlatinum diamine complexProtein?protein interactions

Abstract 

New Pt(II) complexes (Pt-1-3) bearing 1,2,5-oxadiazole ligands (1-3) were synthesized, characterized and evaluated for their ability to disrupt STAT3 dimerization. Ligand 3·HCl showed cytotoxic effects on HCT-116 cells (IC50 = 95.2 μM) and a selective ability to interact with STAT3 (IC50 = 8.2 μM) versus STAT1 (IC50 > 30 μM). Its corresponding platinum complex Pt-3 exhibited an increased cytotoxicity (IC50 = 18.4 μM) and a stronger interaction with STAT3 (IC50 = 1.4 μM), leading to inhibition of its signaling pathway. Pt-3 was also evaluated in cell-based assays for its action on p53 expression and on STAT3 phosphorylation. In syngeneic murine Lewis lung carcinoma (LLC) implanted in C57BL/6 mice, Pt-3 showed a higher antitumor activity with fewer side effects than cisplatin

ISSN 

0223-5234

Link 

http://dx.doi.org/10.1016/j.ejmech.2017.03.017

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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