专利号:US-2022133840-A1 优先权日:2020-10-30 标题:Use of microcystin in preparation of drug for preventing or treating organ and tissue fibrosis diseases 发明人:WANG YAPING; XU LIZHI; WANG JIE; Zhao qingya 权利人:NANJING UNIVERSITY OF TECHNOLOGY 摘要:Use of microcystins having a monocyclic heptapeptide structure in preparation of drugs for preventing or treating organ and tissue fibrosis diseases. Preferably, the microcystins are microcystin-LR with amino acids at positions 2 and 4 of a monocyclic heptapeptide structure thereof being leucine and arginine respectively, or are microcystin-RR with amino acids at positions 2 and 4 thereof being both arginine. Also provided is a method for inhibiting myofibroblast differentiation and collagen synthesis. The method is implemented by inhibiting a TGF-β/Smad signaling pathway by using one or more microcystins.
专利号:US-7582455-B2 优先权日:2005-04-26 标 题:Polypeptides and biosynthetic pathways for the production of stereoisomers of monatin and their precursors 发明人:BRAZEAU BRIAN J; BURKE ELLEN; DESOUZA MERVYN; GORT STEVEN J; HICKS PAULA M; KOLLMANN SHERRY R; LUGINBUHL PETER; MCFARLAN SARA C; RICHARDSON TOBY; SANCHEZ-RIERA FERNANDO A; SOLHEID CHRISTOPHER; WEINER DAVID; ZHAO LISHAN 权利人:CARGILL INC 摘要:Monatin and certain stereoisomers of monatin, such as R,R monatin and S,R monatin, as well as salts thereof, are produced using polypeptides and biosynthetic pathways. These polypeptides and biosynthetic pathways are also useful in the production of R-2-hydroxy-2-(indoly-3-ylmethyl)-4-keto glutaric acid, an intermediate that is formed in certain monatin synthesis pathways, including some biosynthetic pathways.
参考文献:10.1080/14786410500410859 摘要:Bruno M, Fiori M, Mattei D, Melchiorre S, Messineo V, Volpi F, Bogialli S, Nazzari M. ELISA and LC-MS/MS methods for determining cyanobacterial toxins in blue-green algae food supplements. Nat Prod Res. 2006 Jul 20;20(9):827–34. doi: 10.1080/14786410500410859. 摘要:Yin LH, Zhang GZ, Cheng GG, Wei SS. [HPLC analysis of microcystin-RR, YR and LR from Dianshan Lake]. Wei Sheng Yan Jiu. 2006 Mar;35(2):162–4. 参考文献:10.1007/s00128-012-0947-6 摘要:Wu L, Wang Q, Tao M, Chen J, Ma Z, Xie P. Preliminary Study of the Distribution and Accumulation of GSH/Cys Metabolites of Hepatotoxic Microcystins-RR in Common Carp from a Lake with Protracted Cyanobacterial Bloom (Lake Taihu, China). Bulletin of Environmental Contamination and Toxicology. 2012 Dec 28;90(3):382–6. doi: 10.1007/s00128-012-0947-6. 摘要:Yan H, Zhang S, Li C, Liu L, Zhang T. [Effect of salicylic acid on polysaccharide and microcystin contents in Microcystis aeruginosa PCC7806]. Wei Sheng Yan Jiu. 2014 Mar;43(2):290–5.