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(+)-Usniacin
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
(+)-Usniacin图片
CAS NO:7562-61-0
包装与价格:
包装价格(元)
10mM (in 1mL DMSO)电议
10mg电议
50mg电议

产品介绍
(+)-Usniacin 从地衣中分离出来,结合在 mTOR 的 ATP 结合口袋,并抑制 mTORC1/2 活性。 (+)-Usniacin 抑制 mTOR 下游效应子的磷酸化:Akt (Ser473)、4EBP1、S6K,诱导自噬,具有抗癌活性。 (+)-Usniacin 对许多浮游革兰氏阳性菌具有抗菌活性,包括金黄色葡萄球菌、粪肠球菌和粪肠球菌。
Cas No.7562-61-0
别名(+)-地衣酸
Canonical SMILESCC1=C(C(=C2C(=C1O)C3(C(=CC(=C(C3=O)C(=O)C)O)O2)C)C(=O)C)O
分子式C18H16O7
分子量344.32
溶解度≥ 8.0mg/mL in DMSO with gentle warming
储存条件4°C, protect from light
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping ConditionEvaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request
产品描述

MIC: 0.05 μg/62.5 μl to 3.1 μg/62.5 μl

Microorganisms can colonize a wide variety of medical devices, putting patients at risk for systemic and local infectious complications, including local-site infections, endocarditis, and catheter-related bloodstream infections. (+)-Usniacin is a secondary lichen metabolite that possesses antimicrobial activity against various planktonic gram-positive bacteria.

In vitro: (+)-Usniacin showed antimicrobial activity against the same microorganisms as that of acetone extract. Among the three analogues it was the most active one having quite low MIC values. Furthermore, (+)-Usniacin did not show any activity against A. hydrophila and B. cereus whereas (D)-usnic acid did. On the other hand, (+)-Usniacin was active against Y. enterocolitica whereas (D)-usnic acid was not active [1].

In vivo: No animal in-vivo study has been reproted so far.

Clinical trials: Trials carried out in volunteers showed that mouth-rinse with (+)-Usniacin preparations exerted a selective and long lasting action against S. mutans. The adherence of S. mutans to smooth surfaces was not increased by the presence of subinhibiting concentrations of (+)-Usniacin. These characteristics make (+)-Usniacin a suitable candidate for topical use in oral medicine [2].

References:
[1] Tay T, Türk AO, Yilmaz M, Türk H, Kivanc M.  Evaluation of the antimicrobial activity of the acetone extract of the lichen Ramalina farinacea and its (+)-usnic acid, norstictic acid, and protocetraric acid constituents. Z Naturforsch C. 2004 May-Jun;59(5-6):384-8.
[2] Ghione M, Parrello D, Grasso L.   Usnic acid revisited, its activity on oral flora. Chemioterapia. 1988 Oct;7(5):302-5.