European Journal of Medicinal Chemistry p. 884 - 889 (2017)
Update date:2022-08-15
Topics:
Santos, Mariana B.
Pinhanelli, Vitor C.
Garcia, Mayara A.R.
Silva, Gabriel
Baek, Seung J.
Fran?a, Suzelei C.
Fachin, Ana L.
Marins, Mozart
Regasini, Luis O.
In the present study, a series of 2′- and 4′-aminochalcones were synthesized and their antiproliferative activity against a canine malignant histiocytic cell line (DH82) was evaluated. Particularly aminochalcones with a hydrophobic substituent on ring B proved to be potent antiproliferative agents. Among these compounds, aminochalcones 3, 4 and 11 inhibited the growth of DH82 cells, with IC50 values of 34.4, 31.4 and 38.2 μM, respectively, and were three times more potent than etoposide (IC50 = 95.5 μM). The selected chalcones induced death through apoptosis rather than necrosis in DH82 and non-tumorigenic Madin-Darby canine kidney cells (MDCK). Further experiments suggested that the aminochalcones interfere with the regulation of oncogenes/tumor suppressor genes. Aminochalcone 11 inhibited transcription of the TOPOIIα and TP53 genes and aminochalcone 4 down-regulated Sp1 protein expression in a concentration-dependent manner.
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