PMID- 22620966 OWN - NLM STAT- MEDLINE DCOM- 20120921 LR - 20120524 IS - 1744-2818 (Electronic) IS - 1350-6129 (Linking) VI - 19 Suppl 1 DP - 2012 Jun TI - Potential use of glucuronylglucosyl-beta-cyclodextrin as a novel therapeutic tool for familial amyloidotic polyneuropathy. PG - 50-2 LID - 10.3109/13506129.2012.674988 [doi] AB - Transthyretin (TTR)-related familial amyloidotic polyneuropathy, which is induced by amyloidogenic transthyretin (ATTR), is characterized by systemic accumulation of amyloid fibrils. Although it is believed that protein misfolding of monomeric form of TTR is a rate-limiting step for TTR amyloid formation, no effective therapy targeting this misfolding step is available. Our recent studies revealed that cyclodextrins (CyDs), cyclic oligosaccharides composed of glucose units, might interact with TTR and prevent the protein misfolding. In this study, we focused on and elucidated the inhibitory effect of 6-O-alpha-(4-O-alpha-D-Glucuronyl)-D-glucosyl-beta-CyD (GUG-beta-CyD) on TTR amyloid formation. Tryptophan (Trp) fluorescence and (1)H-NMR spectroscopy analyses indicated that GUG-beta-CyD stabilized TTR conformation via interaction with the hydrophobic amino acids of TTR. Moreover, GUG-beta-CyD suppressed TTR deposition in transgenic rats possessing a human ATTR V30M gene in vivo. Collectively, these data indicate that GUG-beta-CyD may inhibit TTR misfolding by stabilizing its conformation, which, in turn, suppresses TTR amyloid formation. FAU - Jono, Hirofumi AU - Jono H AD - Department of Diagnostic Medicine, Kumamoto University, Kumamoto, Japan. hjono@fc.kuh.kumamoto-u.ac.jp FAU - Anno, Takayuki AU - Anno T FAU - Motoyama, Keiichi AU - Motoyama K FAU - Misumi, Yohei AU - Misumi Y FAU - Tasaki, Masayoshi AU - Tasaki M FAU - Oshima, Toshinori AU - Oshima T FAU - Mori, Yoshimasa AU - Mori Y FAU - Mizuguchi, Mineyuki AU - Mizuguchi M FAU - Ueda, Mitsuharu AU - Ueda M FAU - Shinriki, Satoru AU - Shinriki S FAU - Shono, Makoto AU - Shono M FAU - Obayashi, Konen AU - Obayashi K FAU - Arima, Hidetoshi AU - Arima H FAU - Ando, Yukio AU - Ando Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Amyloid JT - Amyloid : the international journal of experimental and clinical investigation : the official journal of the International Society of Amyloidosis JID - 9433802 RN - 0 (Oligosaccharides) RN - 0 (Prealbumin) RN - 0 (cyclomaltoheptaosyl-(6-1)-glucopyranosyl-(4-1)-glucopyranosiduronic acid) SB - IM MH - Amyloid Neuropathies, Familial/*drug therapy/*metabolism MH - Animals MH - Humans MH - Models, Theoretical MH - Oligosaccharides/*metabolism/*therapeutic use MH - Prealbumin/*metabolism MH - Protein Folding/drug effects MH - Rats MH - Rats, Transgenic EDAT- 2012/06/01 06:00 MHDA- 2012/09/22 06:00 CRDT- 2012/05/25 06:00 PHST- 2012/05/25 06:00 [entrez] PHST- 2012/06/01 06:00 [pubmed] PHST- 2012/09/22 06:00 [medline] AID - 10.3109/13506129.2012.674988 [doi] PST - ppublish SO - Amyloid. 2012 Jun;19 Suppl 1:50-2. doi: 10.3109/13506129.2012.674988.