Novel lung adenocarcinoma and nuclear factor-kappa B (NF-κB) inhibitors: Synthesis and evaluation of lantadene congeners
摘要:
The C-3, C-17 and C-22 congeners of pentacyclic triterpenoids reduced lantadene A (3), B (4) and 22 beta hydroxyoleanolic acid (5) were synthesized and were tested in vitro for their NF-kappa B and IKK beta inhibitory potencies and cytotoxicity against A549 lung cancer cells. The lead congeners 12 and 13 showed IC50 of 0.56 and 0.42 mu mol, respectively against TNF-alpha. induced activation of NF-kappa B. The congeners 12 and 13 exhibited inhibition of IKK beta in a single-digit micromolar dose and at the same time, 12 and 13 showed marked cytotoxicity against A549 lung cancer cells with IC50 of 0.12 and 0.08 mu mol, respectively. The lead ester congeners were stable in the acidic pH, while hydrolyzed readily in the human blood plasma to release the active parent moieties. (C) 2014 Elsevier Masson SAS. All rights reserved.
Novel lung adenocarcinoma and nuclear factor-kappa B (NF-κB) inhibitors: Synthesis and evaluation of lantadene congeners
作者:Sharad Kumar Suthar、Hong L. Boon、Manu Sharma
DOI:10.1016/j.ejmech.2013.12.052
日期:2014.3
The C-3, C-17 and C-22 congeners of pentacyclic triterpenoids reduced lantadene A (3), B (4) and 22 beta hydroxyoleanolic acid (5) were synthesized and were tested in vitro for their NF-kappa B and IKK beta inhibitory potencies and cytotoxicity against A549 lung cancer cells. The lead congeners 12 and 13 showed IC50 of 0.56 and 0.42 mu mol, respectively against TNF-alpha. induced activation of NF-kappa B. The congeners 12 and 13 exhibited inhibition of IKK beta in a single-digit micromolar dose and at the same time, 12 and 13 showed marked cytotoxicity against A549 lung cancer cells with IC50 of 0.12 and 0.08 mu mol, respectively. The lead ester congeners were stable in the acidic pH, while hydrolyzed readily in the human blood plasma to release the active parent moieties. (C) 2014 Elsevier Masson SAS. All rights reserved.