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    • Selisistat (EX 527)

      別名: SEN0014196

      Selisistat (EX 527, SEN0014196) 是一種有效的,選擇性SIRT1抑制劑,無細(xì)胞試驗(yàn)中IC50為38 nM,比作用于SIRT2和SIRT3選擇性高200倍以上。Phase 2。

      Selisistat (EX 527) Chemical Structure

      Selisistat (EX 527) Chemical Structure

      CAS: 49843-98-3

      規(guī)格 價格 庫存 購買數(shù)量
      10mM (1mL in DMSO) 790 現(xiàn)貨
      5mg 647.01 現(xiàn)貨
      25mg 1412.04 現(xiàn)貨
      100mg 3824.73 現(xiàn)貨
      1g 10401.3 現(xiàn)貨
      更大包裝 有超大折扣

      400-668-6834

      [email protected]

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      Selisistat (EX 527)相關(guān)產(chǎn)品

      相關(guān)信號通路圖

      細(xì)胞實(shí)驗(yàn)數(shù)據(jù)示例

      細(xì)胞系 實(shí)驗(yàn)類型 給藥濃度 孵育時間 活性描述 文獻(xiàn)信息(PMID)
      HUVECs Apoptosis Assay 10?μM 24 h bolishes the protective effect of resveratrol in cell viability 23358928
      RMECs Apoptosis Assay 10?μM 24?h attenuates the anti-apoptotic effect of Des-G 24486147
      Platelets Apoptosis Assay 10/50 μM 10 min increases ROS level in a dose-dependent manner 25829495
      K562 Function Assay 0.1-1 μM 2 h stimulates Nrf2-dependent gene transcription 21196497
      INS-1E Function Assay 1 μm 24 h prevents resveratrol-induced up-regulation of?Glut2, glucokinase,Pdx-1, and?Tfam 21163946
      MCF-7? Growth Inhibition Assay 0-100 μM 24/48/72 h represses cell proliferation at the concentration ≥100 μM 20371709
      NCI-H460? Function Assay 1 μm 6 h produces a concentration-dependent increase in the amount of acetylated p53 16354677
      HCT116 Function assay 10 uM 8 hrs Inhibition of SIRT1 in human HCT116 cells assessed as increase in acetylated p53 at 10 uM after 8 hrs by Western blot analysis 22642300
      HeLa Growth Inhibition Assay 48 h IC50=8.9?±?1.9 μM 24998427
      HEK 293 Growth Inhibition Assay 48 h IC50=69.0?±?0.7 μM 24998427
      HeLa Growth Inhibition Assay 24 h IC50=37.9?±?1.8 μM 24998427
      HEK 293 Growth Inhibition Assay 24 h IC50=97.7 ± 8.1 μM 24998427
      Namalwa cells Function assay 3 hrs Inhibition of SIRT1-mediated endogenous p53 deacetylase activity in human Namalwa cells assessed as concentration required to enhance p53 deacetylation to twice the basal level after 3 hrs by ELISA, INH = 0.6 μM. 25971769
      Hs683 Cell cycle assay 24 to 48 hrs Cell cycle arrest in human Hs683 cells assessed as accumulation at G1 phase at IC50 after 24 to 48 hrs by propidium iodide staining-based flow cytometry 28475330
      NCI-H460 Function assay 6 hrs Inhibition of SIRT-2 in human NCI-H460 cells assessed as inhibition of p53 deacetylation after 6 hrs by immunoprecipitation/immunoblotting analysis, IC50 = 1 μM. ChEMBL
      293T Function assay Inhibition of human recombinant GST-tagged SIRT1 expressed in 293T cells by Fluor de Lys fluorescence assay, IC50 = 0.038 μM. 21306906
      Escherichia coli cells Function assay Inhibition of human recombinant SIRT1 expressed in Escherichia coli cells using acetylated Lys side chain amino acids 379-382 (Arg-His-Lys-Lys(Ac)) p53 conjugated with aminomethylcoumarin as substrate by fluorescence assay, IC50 = 0.16 μM. 22931526
      BL21 (DE3) Function assay Inhibition of full length human SIRT1 expressed in Escherichia coli BL21 (DE3) cells using fluorogenic 7-amino-4-methylcoumarin (AMC)-labeled peptide by fluorescence assay, IC50 = 0.21 μM. 25275824
      BL21 (DE3) Function assay Inhibition of full length human SIRT2 expressed in Escherichia coli BL21 (DE3) cells using fluorogenic 7-amino-4-methylcoumarin (AMC)-labeled peptide by fluorescence assay, IC50 = 1.94 μM. 25275824
      Escherichia coli cells Function assay Inhibition of human recombinant SIRT2 expressed in Escherichia coli cells using acetylated Lys side chain amino acids 379-382 (Arg-His-Lys-Lys(Ac)) p53 conjugated with aminomethylcoumarin as substrate by fluorescence assay, IC50 = 48.5 μM. 22931526
      A673 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for A673 cells 29435139
      SK-N-MC qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells 29435139
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      生物活性

      產(chǎn)品描述 Selisistat (EX 527, SEN0014196) 是一種有效的,選擇性SIRT1抑制劑,無細(xì)胞試驗(yàn)中IC50為38 nM,比作用于SIRT2和SIRT3選擇性高200倍以上。Phase 2。
      特性 與其他SIRT1抑制劑相比,EX 527有效性,特定性,和穩(wěn)定性更高,且毒性更低。
      靶點(diǎn)
      SIRT1 [1]
      (Cell-free assay)
      38 nM
          • 體外研究(In Vitro)
            體外研究活性

            EX 527有效抑制SIRT1去乙酰化酶活性,IC50為38 nM, 這種作用存在濃度依賴性,而抑制SIRT2和SIRT3時,效果低很多,IC50分別為19.6 μM和48.7 μM。EX 527 濃度高達(dá)100 μM時也不抑制SIRT4-7和I/II類 HDAC活性。1 μM EX-527 單獨(dú)作用于NCI-H460 細(xì)胞,不能檢測p53在lysine 382位點(diǎn)的乙酰化作用。EX-527作用于受遺傳毒性試劑和H2O2影響的NCI-H460細(xì)胞,人類乳腺上皮細(xì)胞,U-2 OS 和MCF-7 細(xì)胞,顯著提高乙酰化p53的量。但是EX 527在p53控制的基因表達(dá), 細(xì)胞存活,或細(xì)胞增殖方面沒有檢測效果。[1] EX 527 在0.1% 血清而不是10%血清中處理7天,作用于HCT116細(xì)胞,顯著提高細(xì)胞數(shù),提高達(dá)90%,說明在無細(xì)胞因子的情況下,SirT1是細(xì)胞增殖的顯著調(diào)節(jié)器。[2] EX 527 作用于INS-1E細(xì)胞,廢除白藜蘆醇對葡萄糖的反應(yīng)的影響,且抑制白藜蘆醇誘導(dǎo)的Glut2, 葡萄糖激酶,Pdx-1,和Tfam的上調(diào), 因?yàn)镋X 527和白藜蘆醇作用于SIRT1脫乙酰基酶活性的作用是相反的。[3]

            激酶實(shí)驗(yàn) GST-SIRT1脫乙酰基酶實(shí)驗(yàn)
            在pDEST27 Gateway載體中使用FuGENE-6使293T細(xì)胞短暫轉(zhuǎn)染GST標(biāo)記的人SIRT1。 48小時后,用50 mM Tris, pH 8.0, 120 mM NaCl, 1 mM EDTA,和 0.5% Nonidet P-40溶解細(xì)胞,加入完整Mini蛋白酶抑制劑片。使用谷胱甘肽-瓊脂糖凝膠珠從溶解物中純化GST-SIRT1,然后在以上buffer 中進(jìn)行沖洗。在EX 527 (48 pM 到100 μM)存在時,使用30 ng GST-SIRT1進(jìn)行脫乙酰反應(yīng)。使用Fluor de Lys 試劑盒 ,使用包含p53的379到 382 殘基,且在lysine 382位點(diǎn)乙酰化的熒光肽,測定脫乙酰作用。使乙酰化賴氨酸殘基與一部分aminomethylcoumarin進(jìn)行耦合。SIRT1使肽段脫乙酰化,隨后加入蛋白水解顯影劑,釋放熒光aminomethylcoumarin。酶和170 μM NAD+及100 μM p53熒光肽在37oC下溫育45分鐘,隨后在顯影劑中溫育15分鐘。分別在460 nm處測定熒光值,用相對熒光單位表示酶活性。
            細(xì)胞實(shí)驗(yàn) 細(xì)胞系 NCI-H460, MCF-7, U-2 OS和 HMEC
            濃度 溶于 DMSO, 終濃度為1 μM
            孵育時間 48 或72小時
            方法

            測定細(xì)胞活力, 用 EX 527處理細(xì)胞48小時。通過細(xì)胞Titer-Glo熒光實(shí)驗(yàn)測定細(xì)胞活力,測定全部 ATP水平,作為細(xì)胞數(shù)的一個指數(shù)。在Luminoskan Ascent讀數(shù)儀上測定熒光值。測定增殖實(shí)驗(yàn)中,在培養(yǎng)基中加入EX 527,然后立即加入0.5 μCi/mL [14C]胸甘。在Microbeta液體閃爍計數(shù)器上測量,在48小時(測定HMEC)或72小時(測定NCI-H460, MCF-7, 和U-2 OS細(xì)胞)測定實(shí)驗(yàn)板。在Cytostar-T組織培養(yǎng)板上通過接近閃爍體而測定滲透到細(xì)胞的胸甘。

            實(shí)驗(yàn)圖片 檢測方法 檢測指標(biāo) 實(shí)驗(yàn)圖片 PMID
            Western blot GRP78 / FASL / Bcl-2 / LC3 Ac-H3K9 / Fibronectin / Collagen 1 / α-SMA
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