WR 1065 dihydrochloride

P53/p21waf-1/MDM2 activator
CAS：14653-77-1
分子式：C5H14N2S.2HCl
分子量：207.16
纯度：98%
存储：Store at -20°C

Background:

WR-1065 dihydrochloride can activate p53 through a JNK-dependent signaling pathway. It also protect normal tissues from the toxic effects of certain cancer drugs. 

体外活性：

The DNA-binding activity is increased in a WR-1065 concentration-dependent manner. Cells treated with 1 mM WR-1065 dihydrochloride for 24 h revealed that all of the p53-induced genes analyzed are transactivated following WR-1065 dihydrochloride treatment, in a p53-dependent manner. Significantly, treatment with WR-1065 dihydrochloride leads to a 3-fold increase in luciferase expression driven by AP-1 and a 5-fold increase when this reporter gene is driven by NF-κB when these values are normalized to the level of the cotransfected β-galactosidase gene [2]. 

体内活性：

WR-1065 attenuates the severity of 6-OHDA-induced catalepsy when compared with 6-OHDA-lesioned rats. Also, it has been observed that WR-1065 dihydrochloride improves catalepsy in dose-dependent manner. Pretreatment with three different doses of WR-1065 dihydrochloride (20, 40 and 80 μg/2 μL/rat) for 3 days before 6- OHDA administration, significantly elevates SOD activity and restores it to normal range compare with 6-OHDA lesioned rats [3].

细胞实验：

For Western analysis, cells are treated with 1 mM WR-1065 for 24 h, and subconfluent cultures of cells are harvested and lysed in RIPA buffer supplemented with protease inhibitors. Protein concentrations are determined by a detergent-compatible assay. Western blots are blocked and incubated in antibody in PBS/0.2% Tween 20/5% nonfat dry milk. Blots are incubated with 1 μg/mL antibody for 1 h at room temperature, followed by washing in PBS/0.2% Tween 20 and incubation in peroxidase-conjugated secondary antibody and chemiluminescence detection [2]. 

动物实验：

Seventy-two rats are divided randomly into 9 equal groups: 1) Control group receives no injection and is left untreated for the entire period of the experiment as intact animals; 2) Sham-operated group is subjected only to surgical procedure; 3) Vehicle (saline)-treated group receives 2 μL saline (Intra-SNc); 4) Lesioned group receives 6- hydroxydopamine; 5) Vehicle+6OHDA group receives saline as a vehicle 3 days once daily (2 μL/rat) before 6-OHDA injection; 6 to 8) Rats in these groups are pretreated with Intra-SNc injection of WR-1065 (20, 40 and 80 μg/2 μL/rat) 3 days before 6-OHDA injection; 9) Non-lesioned animals receive intra-SNc injection of WR-1065 dihydrochloride (80 μg/ 2 μL/rat) for three days [3].

参考文献： 

[1].Pluquet O, et al. The cytoprotective aminothiol WR1065 activates p53 through a non-genotoxic signaling pathway involving c-Jun N-terminal kinase. J Biol Chem. 2003 Apr 4;278(14):11879-87.

[2].Shen H, et al. Binding of the aminothiol WR-1065 to transcription factors influences cellular response to anticancer drugs. J Pharmacol Exp Ther. 2001 Jun;297(3):1067-73.

[3].Afshin Kheradmand, et al. Effect of WR-1065 on 6-hydroxydopamine-induced catalepsy and IL-6 level in rats. Iran J Basic Med Sci. 2016 May; 19(5): 490-496.