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The results suggest the multitarget efficacy of 4-maleamic acid and 4-maleamide peptidyl chalcones against human prostate cancer cells and emphasize the potential therapeutic relevance of these compounds.

Quinolines and acrylates are chemical compounds which were previously described as potential antitumor agents. In this study, a series of seven new quinolinyl acrylate derivatives were synthesized and evaluated against human prostate cancer cells PC-3 and LNCaP in vitro and in vivo. The most effective compound (E)-methyl 2-(7-chloroquinolin-4-ylthio)-3-(4 hydroxyphenyl) acrylate reduced the viability in both cell lines in a time- and dose-dependent manner. Inhibitory effects were also observed on the adhesion, migration, and invasion of the prostate cancer cells as well as on the neoangiogenesis, clonogenic and MMP-9 activity. The effect in vivo was studied in PC-3 xenografts in nude mice. The results were concordant with the in vitro effects and showed decreased tumor growth in treated animals compared to controls. The study suggests the multi-target efficacy of the quinolinyl derivate against human prostate cancer cells and supports its potential therapeutic usefulness.