کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2052815 1074241 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cytotoxicity of albebetin oligomers depends on cross-β-sheet formation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
Cytotoxicity of albebetin oligomers depends on cross-β-sheet formation
چکیده انگلیسی

Prefibrillar cytotoxicity was suggested as a common amyloid characteristic. We showed two types of albebetin prefibrillar oligomers are formed during incubation at pH 7.3. Initial round-shaped oligomers consist of 10–15 molecules determined by atomic force microscopy, do not bind thioflavin-T and do not affect viability of granular neurons and SH-SY5Y cells. They are converted into ca. 30–40-mers possessing cross-β-sheet and reducing viability of neuronal cells. Neither monomers nor fibrils possess cytotoxicity. We suggest that oligomeric size is important for stabilising cross-β-sheet core critical for cytotoxicity. As albebetin was used as a carrier-protein for drug delivery, examination of amyloidogenicity is required prior polypeptide biomedical applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 580, Issue 10, 1 May 2006, Pages 2451–2457
نویسندگان
, , , , , , , ,