Are fibril growth and membrane damage linked processes? An experimental and computational study of IAPP(12-18) and IAPP(21-27) peptides(402 views) Sciacca MFM, Pappalardo M, Attanasio F, Milardi D, La Rosa C, Grasso DM
New J Chem (ISSN: 1144-0546), 2010; 34(2): 200-207.
Dipartimento di Scienze Chimiche Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
Istituto CNR di Biostrutture e Bioimmagini-Sezione di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
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Are fibril growth and membrane damage linked processes? An experimental and computational study of IAPP(12-18) and IAPP(21-27) peptides
Islet amyloid polypeptide (IAPP) is a 37-residue hormone known to deposit as fibrillar aggregates in pancreatic beta-cells of patients affected by T2DM. Although it has been proposed that both the fibrillogenic potential and membrane-activity may play a key role in IAPP cytotoxicity, a direct causative relationship between these two properties has not yet been firmly established. More recently, it has been observed that membrane damage may occur independently from fiber formation of IAPP and that these properties may be encoded by different sequences of IAPP. To further check this hypothesis, the membrane-activity and aggregation properties of the two neutral segments LANFLVH (IAPP(12-18)) and NNFGAIL (IAPP(21-27)), that recent theoretical studies have reported to possess the highest and the lowest fibrillogenic potential respectively, have been studied by means of a combined experimental and computational approach. The whole of the results demonstrate that if neutral peptides and lipids are employed, the most fibrillogenic peptide has the lowest membrane damaging effect and vice versa. These findings are expected to contribute to our rational understanding of the factors involved in the formation of amyloidosis and in the mechanisms of peptide-induced membrane damage.
Are fibril growth and membrane damage linked processes? An experimental and computational study of IAPP(12-18) and IAPP(21-27) peptides
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Are fibril growth and membrane damage linked processes? An experimental and computational study of IAPP(12-18) and IAPP(21-27) peptides
Petraglia F, Singh AA, Carafa V, Nebbioso A, Conte M, Scisciola L, Valente S, Baldi A, Mandoli A, Petrizzi VB, Ingenito C, De Falco S, Cicatiello V, Apicella I, Janssen-megens EM, Kim B, Yi G, Logie C, Heath S, Ruvo M, Wierenga ATJ, Flicek P, Yaspo ML, Della Valle V, Bernard O, Tomassi S, Novellino E, Feoli A, Sbardella G, Gut I, Vellenga E, Stunnenberg HG, Mai A, Martens JHA, Altucci L * Combined HAT/EZH2 modulation leads to cancer-selective cell death(288 views) Oncotarget (ISSN: 1949-2553electronic, 1949-2553linking), 2018 May 22; 9(39): 25630-25646. Impact Factor:5.008 ViewExport to BibTeXExport to EndNote