• 产品描述： Omtriptolide (PG490-88) is a derivative prodrug of triptolide purified from the Chinese herb.

• 靶点： ERK

• 体内研究：
  In a mouse model of cisplatin-induced AKI, omtriptolide results in a significant decrease in blood urea nitrogen (BUN), serum creatinine, and acute tubular necrosis (ATN) score, and a nonsignificant increase in tubular apoptosis score in AKI. The protection of omtriptolide against AKI is associated with a decrease in p-ERK and is independent of MKP-1 and proinflammatory cytokines. In a mouse heterotopic tracheal allograft model of obliterative airway disease, omtriptolide attenuates airway obliteration and inhibits accumulation of inflammatory cells, and therefore may have preventive or therapeutic benefits for patients with obliterative airway disease following lung transplantation. Omtriptolide inhibits fibrosis in the bleomycin group when given the same day or 5 days after bleomycin. Omtriptolide also markedly reduces the number of myofibroblasts in the bleomycin treatment group. Omtriptolide inhibits in vivo both CD4+Vbeta3+ and CD8+Vbeta3+ T cell (alloreactive T cells in this model) expansion in the spleen by 64.09 and 34.02%, respectively, at the time when Vbeta3+ cell expansion is in the logarithmic phase (day 3 after transplantatio

• 参考文献：
  1. Kim HJ, et al. The water-soluble triptolide derivative PG490-88 protects against cisplatin-induced acute kidney injury. J Pharmacol Exp Ther. 2014 Jun;349(3):518-25. 2. Leonard CT, et al. PG490-88, a derivative of triptolide, attenuates obliterative airway disease in a mouse heterotopic tracheal allograft model. J Heart Lung Transplant. 2002 Dec;21(12):1314-8. 3. Krishna G, et al. PG490-88, a derivative of triptolide, blocks bleomycin-induced lung fibrosis. Am J Pathol. 2001 Mar;158(3):997-1004. 4. Chen BJ, et al. Prevention of graft-versus-host disease by a novel immunosuppressant, PG490-88, through inhibition of alloreactive T cell expansion. Transplantation. 2000 Nov 27;70(10):1442-7.

• 溶解性： Soluble  in  H2O

• 保存条件： 2-8℃

• 配置溶液浓度参考：
  

  	1mg	5mg	10mg
  1 mM	2.172 ml	10.858 ml	21.717 ml
  5 mM	0.434 ml	2.172 ml	4.343 ml
  10 mM	0.217 ml	1.086 ml	2.172 ml
  50 mM	0.043 ml	0.217 ml	0.434 ml

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本计算器可帮助您计算出特定溶液中溶质的质量、溶液浓度和体积之间的关系，公式为：

质量 (mg) = 浓度 (mM) x 体积 (mL) x 分子摩尔量 (g/mol)

• pg ng μg mg g kg =
  fM pM nM μM mM M *
  nL μL mL L *