3-TYP
(Synonyms: 吡啶-3-乙炔) 目录号 : GC19013
A SIRT3 inhibitor
Cas No.:120241-79-4
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
| Cell experiment [1]: | |
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Cell lines |
HepG2 cells |
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Preparation Method |
HepG2 cells were pretreated with 3-TYP (50 μM) or the vehicle for 1 h, followed by the treatment with DHM (20 μM) for 2 h and 0.2 mM of PA for 16 h. |
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Reaction Conditions |
50 μM, 16h |
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Applications |
DHM treatment attenuates PA-induced autophagy arrest and oxidative stress in hepatocytes, which was mediated via SIRT3. |
| Animal experiment [2]: | |
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Animal models |
C57BL/6 J male mice |
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Preparation Method |
Both 3-TYP and 2-methoxyestradiol were administered by intraperitoneal injection starting 1 week prior to NE for 7 days 3-TYP was administered at 50 mg/kg/day, and 2-ME was administered at 16 mg/kg/day. |
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Dosage form |
50 mg/kg/day,i.p. |
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Applications |
3-TYP exacerbates noise-induced hair cell damage; 3-TYP increases the acetylation level of SOD2 and aggravates oxidative stress and apoptosis. |
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References: [1]. Huang L, et al. Dihydromyricetin attenuates palmitic acid-induced oxidative stress by promoting autophagy via SIRT3-ATG4B signaling in hepatocytes. Nutr Metab (Lond). 2021 Sep 9;18(1):83. [2].Liang W, et al. Sirtuin-3 Protects Cochlear Hair Cells Against Noise-Induced Damage via the Superoxide Dismutase 2/Reactive Oxygen Species Signaling Pathway. Front Cell Dev Biol. 2021 Nov 18;9:766512. |
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3-TYP inhibit SIRT3 with an IC50 of 16 nM, and is more potent over SIRT1 and SIRT2 with IC50 of 88 nM and 92 nM, respectively.[1]
In vitro, with 50 μM 3-TYP abrogated the barrier protective effect of PD in multiple organs of septic mice. In HUVECs, 3-TYP (50 μM) diminished PD-mediated protection against F-actin redistribution, cadherin–catenin complex dissociation, and endothelial monolayer hyperpermeability.[3] In vitro study it demonstrated that at 100 μM, 3-TYP decreased expression of genes involved in lipolysis and glucose transport GLUT4 compared to HNK. At the meantime, 3-TYP also caused an increase in gene expression of adipocyte-specific cytokines, including IL6, resistin, and TNF-α. In vitro, treatment with 100 μM 3-TYP obviously inhibited glucose uptake in 3T3-L1 adipocytes in contrast to control in the presence of insulin.[5] In A/R-treated H9c2 cells, 4-P-PDOT (10 μM) and 3-TYP (5 μM) treatment resulted in no notable difference in cell viability. In addition, combination wiith 4-P-PDOT and 3-TYP elevated apoptotic signaling by increasing cleaved caspase-3 and Bax expression while decreasing Bcl-2 expression compared with that in the A/R + Mel group.[6]
In vivo experiment it suggested that treatment with 50 mgkg intraperitoneally 3-TYP reversed the induction of mitophagy by decreasing the expression levels of FOXO3α, BINP3, LC3-II/LC3-I, SOD2, PRDX3, and P62.[2] In vivo efficacy test it indicated that C57BL/6 mice were administrated 50 mg/kg 3-TYP abolished TBM's antioxidative effects.[4]
References:
[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].Yu W, et al. Dexmedetomidine Ameliorates Hippocampus Injury and Cognitive Dysfunction Induced by Hepatic Ischemia/Reperfusion by Activating SIRT3-Mediated Mitophagy and Inhibiting Activation of the NLRP3 Inflammasome in Young Rats. Oxid Med Cell Longev. 2020 Nov 20;2020:7385458.
[3].Wu J, et al. Polydatin protects against lipopolysaccharide-induced endothelial barrier disruption via SIRT3 activation. Lab Invest. 2020 Apr;100(4):643-656.
[4].Lv D, et al. Tubeimoside I Ameliorates Myocardial Ischemia-Reperfusion Injury through SIRT3-Dependent Regulation of Oxidative Stress and Apoptosis. Oxid Med Cell Longev. 2021 Nov 9;2021:5577019.
[5]. Lee AY, et al. Sirt3 Pharmacologically Promotes Insulin Sensitivity through PI3/AKT/mTOR and Their Downstream Pathway in Adipocytes. Int J Mol Sci. 2022 Mar 29;23(7):3740.
[6].Wu J, et al. Melatonin Attenuates Anoxia/Reoxygenation Injury by Inhibiting Excessive Mitophagy Through the MT2/SIRT3/FoxO3a Signaling Pathway in H9c2 Cells. Drug Des Devel Ther. 2020 May 25;14:2047-2060.
3-TYP 抑制 SIRT3，IC50 为 16 nM，比 SIRT1 和 SIRT2 更有效，IC50 分别为 88 nM 和 92 nM。[1]
在体外，50 μM 3-TYP 消除了 PD 在脓毒症小鼠多个器官中的屏障保护作用。在 HUVEC 中，3-TYP (50 μM) 降低了 PD 介导的针对肌动蛋白再分布、钙粘蛋白-连环蛋白复合物解离和内皮单层高渗透性的保护作用。[3] 体外研究表明，在 100与 HNK 相比，μM、3-TYP 降低了参与脂肪分解和葡萄糖转运 GLUT4 的基因的表达。同时，3-TYP 还引起脂肪细胞特异性细胞因子的基因表达增加，包括 IL6、抵抗素和 TNF-α。在体外，与胰岛素存在的对照相比，100 μM 3-TYP 处理明显抑制 3T3-L1 脂肪细胞的葡萄糖摄取。[5] 在 A/R 处理的 H9c2 细胞中，4- P-PDOT (10 μM) 和 3-TYP (5 μM) 处理导致细胞活力没有显着差异。此外，与 A/R + Mel 组相比，4-P-PDOT 和 3-TYP 的组合通过增加裂解的 caspase-3 和 Bax 表达同时降低 Bcl-2 表达来提高细胞凋亡信号。[6]
体内实验表明，腹膜内注射 50 mg/kg 3-TYP 通过降低 FOXO3α、BINP3、LC3-II/LC3-I、SOD2、PRDX3 和 P62 的表达水平来逆转线粒体自噬的诱导。 [2] 体内药效试验表明，C57BL/6 小鼠给予 50 mg/kg 3-TYP 可消除 TBM 的抗氧化作用。[4]
| Cas No. | 120241-79-4 | SDF | |
| 别名 | 吡啶-3-乙炔 | ||
| Canonical SMILES | C1(C2=CN=NN2)=CC=CN=C1 | ||
| 分子式 | C7H6N4 | 分子量 | 146.15 |
| 溶解度 | DMSO : 100 mg/mL (684.23 mM);Ethanol : 16.67 mg/mL (114.06 mM) | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 6.8423 mL | 34.2114 mL | 68.4229 mL |
| 5 mM | 1.3685 mL | 6.8423 mL | 13.6846 mL |
| 10 mM | 0.6842 mL | 3.4211 mL | 6.8423 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
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Melatonin Attenuates Anoxia/Reoxygenation Injury by Inhibiting Excessive Mitophagy Through the MT2/SIRT3/FoxO3a Signaling Pathway in H9c2 Cells
Drug Des Devel Ther2020 May 25;14:2047-2060.PMID: 32546969DOI: 10.2147/DDDT.S248628
Purpose: Autophagy caused by ischemia/reperfusion (I/R) increases the extent of cardiomyocyte damage. Melatonin (Mel) diminishes cardiac injury through regulating autophagy and mitochondrial dynamics. However, illustrating the specific role of mitophagy in the cardioprotective effects of melatonin remains a challenge. The aim of our research was to investigate the impact and underlying mechanisms of melatonin in connection with mitophagy during anoxia/reoxygenation (A/R) injury in H9c2 cells.
Methods: H9c2 cells were pretreated with melatonin with or without the melatonin membrane receptor 2 (MT2) antagonist 4-P-PDOT, the MT2 agonist IIK7 and the sirtuin 3 (SIRT3) inhibitor 3-TYP for 4 hours and then subjected to A/R injury. Cell viability, cellular apoptosis, necrosis levels and oxidative markers were assessed. The expression of SIRT3 and forkhead box O3a (FoxO3a), mitochondrial function and the levels of mitophagy-related proteins were also evaluated.
Results: A/R injury provoked enhanced mitophagy in H9c2 myocytes. In addition, increased mitophagy was correlated with decreased cellular viability, increased oxidative stress and mitochondrial dysfunction in H9c2 cells. However, melatonin pretreatment notably increased cell survival and decreased cell apoptosis and oxidative response after A/R injury, accompanied by restored mitochondrial function. The inhibition of excessive mitophagy is involved in the cardioprotective effects of melatonin, as shown by the decreased expression of the mitophagy-related molecules Parkin, Beclin1, and BCL2-interacting protein 3-like (BNIP3L, best known as NIX) and decreased light chain 3 II/light chain 3 I (LC3 II/LC3 I) ratio and upregulation of p62 expression. Moreover, the decreased expression of SIRT3 and FoxO3a in A/R-injured H9c2 cells was abrogated by melatonin, but these beneficial effects were attenuated by the MT2 antagonist 4-P-PDOT or the SIRT3 inhibitor 3-TYP and enhanced by the MT2 agonist IIK7.
Conclusion: These results indicate that melatonin protects H9c2 cells during A/R injury through suppressing excessive mitophagy by activating the MT2/SIRT3/FoxO3a pathway. Melatonin may be a useful candidate for alleviating myocardial ischemia/reperfusion (MI/R) injury in the future, and the MT2 receptor might become a therapeutic target.
Melatonin ameliorates myocardial ischemia reperfusion injury through SIRT3-dependent regulation of oxidative stress and apoptosis
J Pineal Res2017 Sep;63(2).PMID: 28500761DOI: 10.1111/jpi.12419
Sirtuins are a family of highly evolutionarily conserved nicotinamide adenine nucleotide-dependent histone deacetylases. Sirtuin-3 (SIRT3) is a member of the sirtuin family that is localized primarily to the mitochondria and protects against oxidative stress-related diseases, including myocardial ischemia/reperfusion (MI/R) injury. Melatonin has a favorable effect in ameliorating MI/R injury. We hypothesized that melatonin protects against MI/R injury by activating the SIRT3 signaling pathway. In this study, mice were pretreated with or without a selective SIRT3 inhibitor and then subjected to MI/R operation. Melatonin was administered intraperitoneally (20 mg/kg) 10 minutes before reperfusion. Melatonin treatment improved postischemic cardiac contractile function, decreased infarct size, diminished lactate dehydrogenase release, reduced the apoptotic index, and ameliorated oxidative damage. Notably, MI/R induced a significant decrease in myocardial SIRT3 expression and activity, whereas the melatonin treatment upregulated SIRT3 expression and activity, and thus decreased the acetylation of superoxide dismutase 2 (SOD2). In addition, melatonin increased Bcl-2 expression and decreased Bax, Caspase-3, and cleaved Caspase-3 levels in response to MI/R. However, the cardioprotective effects of melatonin were largely abolished by the selective SIRT3 inhibitor 3-(1H-1,2,3-triazol-4-yl)pyridine (3-TYP), suggesting that SIRT3 plays an essential role in mediating the cardioprotective effects of melatonin. In vitro studies confirmed that melatonin also protected H9c2 cells against simulated ischemia/reperfusion injury (SIR) by attenuating oxidative stress and apoptosis, while SIRT3-targeted siRNA diminished these effects. Taken together, our results demonstrate for the first time that melatonin treatment ameliorates MI/R injury by reducing oxidative stress and apoptosis via activating the SIRT3 signaling pathway.
Efficacy of 5-aminolevulinic acid-based photodynamic therapy against keloid compromised by downregulation of SIRT1-SIRT3-SOD2-mROS dependent autophagy pathway
Redox Biol2019 Jan;20:195-203.PMID: 30368039DOI: 10.1016/j.redox.2018.10.011
Keloids exhibit cancer-like properties without spontaneous regression and usually recur post excision. Although photodynamic therapy (PDT) is a promising treatment, details of the mechanisms remain to be elucidated. In this study, we investigated mechanisms involved in 5-Aminolevulinic Acid (5-ALA)-based PDT against keloid. Found that 5-ALA-PDT induced superoxide anion-dependent autophagic cell death. Application of autophagy inhibitor 3-Methyladenine (3-MA) significantly prevented the effect that 5-ALA-PDT induced keloid-derived fibroblasts death, but Z-VAK-FMK (apoptotic inhibitor) did not. Interestingly, 5-ALA-PDT promoted the SIRT3 protein expression and the activity of mitochondrial superoxide dismutase 2 (SOD2), but SIRT1 protein expression level was decreased. SOD2 as a key enzyme can decrease mitochondrial ROS (mROS) level, Deacetylation of SOD2 by SIRT3 regulates SOD2 enzymatic activity has been identified. Then we explored SOD2 acetylation level with immunoprecipitation, found that 5-ALA-PDT significantly increased the acetylation levels of SOD2. In order to confirm deacetylation of SOD2 regulated by SIRT3, 3-TYP (SIRT3 inhibitor) was used. Found that inhibition of SIRT3 by 3-TYP significantly increased the level of SOD2 acetylation level compared with control group or 5-ALA-PDT group. To explore the connection of SIRT1 and SIRT3, cells were treated with EX527(SIRT1 inhibitor) or SRT1720 (SIRT1 activator), and EX527 increased SIRT3 protein level, however, SRT1720 displayed the opposite effect in the present or absence of 5-ALA-PDT. Moreover SIRT1-inhibited cells are more resistant to 5-ALA-PDT and showing decreased ROS accumulation. These results may demonstrate that 5-ALA-PDT induced SIRT1 protein level decreased, which promoted the effect of SIRT3 increased activity of SOD2 that can reduce mROS level, and then compromised 5-ALA-PDT induced autophagic cell death.
Melatonin Attenuates Sepsis-Induced Small-Intestine Injury by Upregulating SIRT3-Mediated Oxidative-Stress Inhibition, Mitochondrial Protection, and Autophagy Induction
Front Immunol2021 Mar 12;12:625627.PMID: 33790896DOI: 10.3389/fimmu.2021.625627
Melatonin reportedly alleviates sepsis-induced multi-organ injury by inducing autophagy and activating class III deacetylase Sirtuin family members (SIRT1-7). However, whether melatonin attenuates small-intestine injury along with the precise underlying mechanism remain to be elucidated. To investigate this, we employed cecal ligation and puncture (CLP)- or endotoxemia-induced sepsis mouse models and confirmed that melatonin treatment significantly prolonged the survival time of mice and ameliorated multiple-organ injury (lung/liver/kidney/small intestine) following sepsis. Melatonin partially protected the intestinal barrier function and restored SIRT1 and SIRT3 activity/protein expression in the small intestine. Mechanistically, melatonin treatment enhanced NF-κB deacetylation and subsequently reduced the inflammatory response and decreased the TNF-α, IL-6, and IL-10 serum levels; these effects were abolished by SIRT1 inhibition with the selective blocker, Ex527. Correspondingly, melatonin treatment triggered SOD2 deacetylation and increased SOD2 activity and subsequently reduced oxidative stress; this amelioration of oxidative stress by melatonin was blocked by the SIRT3-selective inhibitor, 3-TYP, and was independent of SIRT1. We confirmed this mechanistic effect in a CLP-induced sepsis model of intestinal SIRT3 conditional-knockout mice, and found that melatonin preserved mitochondrial function and induced autophagy of small-intestine epithelial cells; these effects were dependent on SIRT3 activation. This study has shown, to the best of our knowledge, for the first time that melatonin alleviates sepsis-induced small-intestine injury, at least partially, by upregulating SIRT3-mediated oxidative-stress inhibition, mitochondrial-function protection, and autophagy induction.
https://pubmed.ncbi.nlm.nih.gov/?term=3-TYP&format=abstract