Tauroursodeoxycholate (Tauroursodeoxycholic acid, TUDCA, UR 906, UR906),又名牛磺熊去氧胆酸,是熊去氧胆酸的牛磺酸偶联产物,是一种内质网应激抑制剂,线粒体稳定剂和抗凋亡剂。Tauroursodeoxycholate牛磺熊去氧胆酸作为细胞保护剂可改善肝脏功能,并可以预防肝细胞癌减少内质网应激和细胞凋亡,能显著降低凋亡分子的表达,如Caspase-3和Caspase-12,也抑制ERK。在内质网应激条件下,TUDCA处理MSCs(间充质干细胞)能降低内质网应激相关蛋白的激活,抑制GRP78与PERK之间的解离,从而减少内质网应激介导的细胞死亡。在小鼠后肢缺血模型中,与未处理间充质干细胞移植相比,TUDCA处理的间充质干细胞移植可促进血管形成,提高移植细胞的存活率。
参考文献
[1]. Qin Y, et al. Tauroursodeoxycholic Acid Attenuates Angiotensin II Induced Abdominal Aortic Aneurysm Formation in Apolipoprotein E-deficient Mice by Inhibiting Endoplasmic Reticulum Stress. Eur J Vasc Endovasc Surg. 2017 Mar;53(3):337-345.
[2]. Yoon Y M, et al. Tauroursodeoxycholic acid reduces ER stress by regulating of Akt-dependent cellular prion protein. Scientific Reports, 2016, 6(1): 39838.
[3]. Kim SY, et al. Tauroursodeoxycholate (TUDCA) inhibits neointimal hyperplasia by suppression of ERK via PKCα-mediated MKP-1 induction. Cardiovasc Res. 2011 Nov 1;92(2):307-16.
冰袋运输。粉末直接保存于-20℃,有效期2年。建议分装后-20℃干燥保存,避免反复冻融。