کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1361353 981461 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and cytotoxic activities of usnic acid derivatives
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis and cytotoxic activities of usnic acid derivatives
چکیده انگلیسی

Nine usnic acid–amine conjugates were evaluated on murine and human cancer cell lines. The polyamine derivatives showed significant cytotoxicity in L1210 cells. Their activities appeared to be independent of the polyamine transport system (PTS). Indeed, their activities were similar in chinese hamster ovary (CHO) and in the PTS deficient CHO-MG cells. In addition, α-difluoromethylornithine, an ornithine decarboxylase inhibitor known to indirectly enhance the activity of the PTS and consequently increase the cytotoxicity of cytotoxic drugs entering cells via the PTS, had no effect on the activity of the polyamine derivatives. The more active derivative (1,8-diaminooctane derivative) displayed similar activities on all cancer cell lines studied and induced apoptosis.

Cytotoxic evaluation of enamines derived from (+)-usnic acid led us to the selection of the diaminooctane derivative as active towards cancer cell lines (2.7 < IC50 < 14.1 μM). Apoptotic effect was also observed.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioorganic & Medicinal Chemistry - Volume 16, Issue 14, 15 July 2008, Pages 6860–6866
نویسندگان
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