Synthesis and in vivo anticancer and antiangiogenic effects of novel thioxothiazolidin-4-one derivatives against transplantable mouse tumor

A series of novel thioxothiazolidin-4-one derivatives 5(a-g) were synthesized by the coupling of different amines containing aliphatic, substituted aromatic, and heterocyclic moieties, such as oxadiazol, pyrazole, isoxazole, and piperazine with 2-(5-(4-chlorophenyl)furan-2-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)acetic acid. All compounds were characterized by ¹H NMR, LCMS, FTIR and elemental analysis. In this study, we investigated the possibility that these novel thioxothiazolidin-4-one derivatives 5(a-g) inhibits tumor growth and tumor induced angiogenesis using mouse Ehrlich Ascites Tumor (EAT) as a model system. Our results demonstrated that the compounds significantly reduced ascites tumor volume, cell number, and increased the life span of EAT-bearing mice. In addition, the compounds manifested strong antiangiogenic effects and suppressed tumor induced endothelial proliferation in the mice peritoneum. From our findings, it is noted that the derivatives 5(a-e) may be possible candidates for anticancer therapy with the ability to inhibit tumor angiogenesis and tumor cell proliferation.