Several flavonoids and their biosynthetic precursor chalcones were designed and synthesized to improve the biological effects of the lead compound 2'-hydroxyflavonone against androgen receptor (AR)-dependent transcriptional stimulation. Newly synthesized chalcones 19 and 26 suppressed AR dependent transcription as well as DHT-dependent growth stimulation at a low micromolar level. These compounds were also effective against ligand-independent constitutively active mutant AR derived from castration-resistant PCa (CRPC). Compounds 19 and 26 showed broad spectrum anti-proliferative activity at 5-10 mu M against multiple tumor cell lines including androgen-independent and taxane-resistant prostate cancer as well as a multidrug-resistant subline. Mode of action studies suggested that 19 induced sub-G1 accumulation in PC-3 cells by disrupting the microtubule network without affecting cell cycle progression. Furthermore, the in vivo effectiveness of chalcone 19 was confirmed in a xenograft model antitumor assay. Thus, chalcone 19 has the potential to be a bifunctional lead for treatment of AR-dependent PCa at lower doses as well as AR-independent PCa, including CRPC, at higher doses. (C) 2018 Elsevier Masson SAS. All rights reserved.
Kamboj, Ramesh C.; Berar, Surinder; Berar, Urmila, Journal of the Indian Chemical Society, 2011, vol. 88, # 6, p. 879 - 885
作者:Kamboj, Ramesh C.、Berar, Surinder、Berar, Urmila、Gupta, Satish C.
DOI:——
日期:——
Parikh; Shah, Journal of the Indian Chemical Society, 1959, vol. 36, p. 729