3-TYP is a selective SIRT3 inhibitor, with an IC50 of 16 nM, more potent over SIRT1 (IC50=88 nM), SIRT2 (IC50=92 nM).
CAS：120241-79-4
分子式：C7H6N4
分子量：146.15
纯度：98%
存储：Store at -20°C

Background:

3-TYP is a selective SIRT3 inhibitor, with an IC50 of 16 nM, more potent over SIRT1 (IC50=88 nM), SIRT2 (IC50=92 nM).

3-TYP inhibits melatonin-enhanced SIRT3 activity but does not affect SIRT3 protein expression. 3-TYP pretreatment reverses the protective effects of melatonin on cadmium (Cd)-induced mitochondrial-derived O2•- production and autophagic cell death. 3-TYP significantly attenuates melatonin-induced increases in deacetylated-SOD2 expression and SOD2 activity in HepG2 cells exposed to Cd[1].

3-TYP (50 mg/kg, i.p.) does not significantly influence the LVEF, LVFS, infarct size, serum LDH levels, apoptosis, and oxidative stress compared with those of the Sham group. Moreover, 3-TYP has little effect on gp91phox, Nrf2, NQO 1, Bax, Bcl-2, Caspase-3, and cleaved Caspase-3 expression levels, compared with the Sham group. 3-TYP significantly decreases SIRT3 activity and increases the acetylation of SOD2 compared with that in the control group, without influencing SIRT3 expression. 3-TYP attenuates the cardioprotective effects of melatonin by decreasing the LVEF and LVFS after 24 hour of reperfusion. 3-TYP also increases the infarct size, serum LDH levels, and apoptotic ratio compared with those in the IR+Mel group[2].

参考文献:
[1]. Pi H, et al. SIRT3-SOD2-mROS-dependent autophagy in cadmium-induced hepatotoxicity and salvage by melatonin. Autophagy. 2015;11(7):1037-51.
[2]. Zhai M, et al. Melatonin ameliorates myocardial ischemia reperfusion injury through SIRT3-dependent regulation of oxidative stress and apoptosis. J Pineal Res. 2017 Sep;63(2).
[3]. Galli U, et al. Identification of a sirtuin 3 inhibitor that displays selectivity over sirtuin 1 and 2. Eur J Med Chem. 2012 Sep;55:58-66.