کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1358026 981307 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Topoisomerase II inhibitors from the roots of Stellera chamaejasme L.
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Topoisomerase II inhibitors from the roots of Stellera chamaejasme L.
چکیده انگلیسی

Three new compounds, including one daphnane diterpene (1), one sesquiterpene (6), and one lignan (7) have been isolated from the Stellera chamaejasme L., together with five other known compounds, including four daphnane diterpenenoids (2–5) and one lignan (8). The structures of the new compounds were elucidated by spectroscopic analysis. The cytotoxicities of compounds 1–8 towards human lung adenocarcinoma cells (A549 cells) were evaluated using a sulforhodamine B assay. All of the compounds displayed significant cytotoxicity, with IC50 values in the ranging of 0.2 nM to 2.0 μM. Mechanistic studies revealed that the antitumor activities of compounds 1–3 and 7 were derived from their inhibition of topoisomerase II (Topo II). Furthermore, as a Topo II inhibitor, compound 1 was found to effectively induced G2-M phase cell cycle arrest and apoptosis in cancer cells.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioorganic & Medicinal Chemistry - Volume 22, Issue 15, 1 August 2014, Pages 4198–4203
نویسندگان
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