کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10594215 | 981821 | 2012 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and biological evaluation of novel spin labeled 18β-glycyrrhetinic acid derivatives
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
Eighteen novel spin-labeled 18β-glycyrrhetinic acid (GA) derivatives were designed, synthesized, and evaluated for cytotoxicity against four human tumor cell lines (A-549, DU-145, KB and KBvin). Most of the derivatives showed more significant cytotoxicity than that of the parent compound GA. The best compound, 6j, with a tryptophan amino moiety and piperidine nitroxyl radical showed GI50 values of 13.7-15.0 μM, and was fivefold more potent than GA. In a mechanism of action study, compound 7a was confirmed as a 20S proteasome inhibitor in both in vitro and cell-based assays. These findings support further optimization efforts based on 18β-GA as a lead compound to develop potential anticancer drug candidates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioorganic & Medicinal Chemistry Letters - Volume 22, Issue 24, 15 December 2012, Pages 7530-7533
Journal: Bioorganic & Medicinal Chemistry Letters - Volume 22, Issue 24, 15 December 2012, Pages 7530-7533
نویسندگان
Yingqian Liu, Keduo Qian, Chih-Ya Wang, Chin-Ho Chen, Xiaoming Yang, Kuo-Hsiung Lee,