کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1376206 981952 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Discovery of the catechol structural moiety as a Stat3 SH2 domain inhibitor by virtual screening
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Discovery of the catechol structural moiety as a Stat3 SH2 domain inhibitor by virtual screening
چکیده انگلیسی

The Stat3 SH2 domain is essential for its activation, and development of a potent SH2 inhibitor will be therapeutically valuable in treating cancers with constant Stat3 activation. We report here the identification of the catechol (1,2-dihydroxybenzene) structural moiety by virtual screening as a Stat3 SH2 inhibitor. The catechol compound docked to the Stat3 SH2 domain in computer modeling forms hydrogen bonds with the conserved pTyr-interacting amino acids. In the biochemical assay, a catechol-containing compound, but not the hydroxyl group-acetalized analogue, was able to inhibit Stat3 DNA-binding activity. Furthermore, the catechol compound was demonstrated to compete with pTyr peptides in binding to the Stat3 SH2 domain, suggesting that the catechol moiety is a pTyr bioisostere and may potentially be used for designing cell-permeable SH2 inhibitors. In our preliminary effort, we also demonstrated that the potency of catechol compound as Stat3 SH2 inhibitors could be improved by modifying the non-catechol part of the compound structure.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioorganic & Medicinal Chemistry Letters - Volume 18, Issue 18, 15 September 2008, Pages 4988–4992
نویسندگان
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