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Synthesis, structure–activity relationship studies and biological evaluation of novel 2,5‐disubstituted indole derivatives as anticancer agents
Author(s) -
Hu Hongyu,
Wu Jun,
Ao Mingtao,
Wang Huiru,
Zhou Tongtong,
Xue Yuhua,
Qiu Yingkun,
Fang Meijuan,
Wu Zhen
Publication year - 2016
Publication title -
chemical biology and drug design
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 77
eISSN - 1747-0285
pISSN - 1747-0277
DOI - 10.1111/cbdd.12808
Subject(s) - hela , cancer cell , annexin , a549 cell , apoptosis , chemistry , in vitro , kinase , cancer research , cancer , biology , microbiology and biotechnology , biochemistry , genetics
Three novel series of 2,5‐disubstituted indole derivatives were synthesized and evaluated in vitro for their antiproliferative activity against human cancer cells and HIV ‐1 inhibition activity used as a readout of cellular activity. Most compounds were found to have potent anticancer activity. In particular, 2c and 3b which showed effectively to repress HIV ‐1 transcription had a pan antiproliferative activity in cervical cancer cells (HeLa), breast cancer cells ( MCF ‐7), liver cancer cells (HepG2), and lung cancer cells (H460 and A549). While 3b exhibited high sensitivity to A549 cells with the IC 50 value 0.48 ± 0.15 μ m , 2c showed high selectivity toward HepG2 cells with the IC 50 value 13.21 ± 0.30 μ m . With respect to the cellular mechanism of action, HepG2 cells treated with 2c and A549 cells treated with 3b for 24 h were studied by annexin V/ PI staining and Western blot analysis, and results revealed that 2c and 3b may induce cancer cells apoptosis through inhibiting the phosphorylation at Ser2 of RNAPII CTD which can be phosphorylated by cyclin‐dependent kinase 9. These studies indicated that 2c and 3b may develop as potent lead compounds in the therapy of cancer. However, determining their roles in preventing HIV ‐1 still requires further intensive study.