21640-24-4Relevant academic research and scientific papers
Regulating miRNA-21 Biogenesis by Bifunctional Small Molecules
Yan, Hao,Bhattarai, Umesh,Guo, Zhi-Fo,Liang, Fu-Sen
, p. 4987 - 4990 (2017)
We report a new strategy to regulate microRNAs (miRNAs) biogenesis by using bifunctional small molecules that consist of a pre-miRNA binding unit connected by a linker to a Dicer inhibiting unit. In this effort, fluorescence polarization-based screening was used to identify neomycin as a pre-miR-21 binding ligand. Although neomycin cannot inhibit miR-21 maturation, linking it to the RNase inhibitor 1 forms the bifunctional conjugate 7A, which inhibits the production of miR-21. We expect that this strategy will be applicable to design other molecules for miRNA regulation.
Design, synthesis and biological evaluation of 3-substituted indenoisoquinoline derivatives as topoisomerase I inhibitors
Zhao, Qian,Xu, Xi,Xie, Zhouling,Liu, Xiao,You, Qidong,Guo, Qinglong,Zhong, Yi,Li, Zhiyu
, p. 1068 - 1072 (2016)
A new series of indenoisoquinoline derivatives was designed and synthesized. The in vitro anti-proliferative activity of these novel compounds was evaluated in HepG2, A549 and HCT-116 cell lines. Compounds 9a, 9b, 10a, 10c, 10e, 18a and 18b manifested potent inhibitory activity against the three tested cancer cell lines. Nineteen compounds were also tested for Top I inhibition at 50 μM. Almost all the tested compounds showed potent Top I inhibition activity at this concentration. The most potent compounds 9a and 10a demonstrated more cytotoxicity than HCPT and TPT and was comparable to CPT in inhibitory activities on Top I in our biological assay.
