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別名: SEN0014196
Selisistat (EX 527, SEN0014196) 是一種有效的,選擇性SIRT1抑制劑,無細胞試驗中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
CAS: 49843-98-3
相關(guān)靶點 | SIRT1 SIRT2 SIRT3 SIRT6 SIRT5 | 點擊展開 |
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相關(guān)產(chǎn)品 | SRT1720 HCl Sirtinol Quercetin Fisetin 3-TYP AGK2 OSS_128167 SRT2104 (GSK2245840) SirReal2 Thiomyristoyl Salvianolic acid B SRT2183 UBCS039 Salermide SRT3025 HCl AK 7 NRD167 Inauhzin CAY10602 | 點擊展開 |
相關(guān)化合物庫 | 激酶抑制劑庫 FDA藥物庫 天然產(chǎn)物庫 已知活性藥物庫-I 高選擇性抑制劑庫 | 點擊展開 |
細胞系 | 實驗類型 | 給藥濃度 | 孵育時間 | 活性描述 | 文獻信息 |
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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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產(chǎn)品描述 | Selisistat (EX 527, SEN0014196) 是一種有效的,選擇性SIRT1抑制劑,無細胞試驗中IC50為38 nM,比作用于SIRT2和SIRT3選擇性高200倍以上。Phase 2。 | ||
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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 |
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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100 μM時也不抑制SIRT4-7和I/II類 HDAC活性。1 μM EX-527 單獨作用于NCI-H460 細胞,不能檢測p53在lysine 382位點的乙?;饔谩X-527作用于受遺傳毒性試劑和H2O2影響的NCI-H460細胞,人類乳腺上皮細胞,U-2 OS 和MCF-7 細胞,顯著提高乙?;痯53的量。但是EX 527在p53控制的基因表達, 細胞存活,或細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細胞,顯著提高細胞數(shù),提高達90%,說明在無細胞因子的情況下,SirT1是細胞增殖的顯著調(diào)節(jié)器。[2] EX 527 作用于INS-1E細胞,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), 因為EX 527和白藜蘆醇作用于SIRT1脫乙?;富钚缘淖饔檬窍喾吹?。[3] |
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激酶實驗 | GST-SIRT1脫乙?;笇嶒?/td> | |||
在pDEST27 Gateway載體中使用FuGENE-6使293T細胞短暫轉(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 中進行沖洗。在EX 527 (48 pM 到100 μM)存在時,使用30 ng GST-SIRT1進行脫乙酰反應(yīng)。使用Fluor de Lys 試劑盒 ,使用包含p53的379到 382 殘基,且在lysine 382位點乙?;臒晒怆?,測定脫乙酰作用。使乙?;嚢彼釟埢c一部分aminomethylcoumarin進行耦合。SIRT1使肽段脫乙?;?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。 | ||||
細胞實驗 | 細胞系 | 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 | 測定細胞活力, 用 EX 527處理細胞48小時。通過細胞Titer-Glo熒光實驗測定細胞活力,測定全部 ATP水平,作為細胞數(shù)的一個指數(shù)。在Luminoskan Ascent讀數(shù)儀上測定熒光值。測定增殖實驗中,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細胞)測定實驗板。在Cytostar-T組織培養(yǎng)板上通過接近閃爍體而測定滲透到細胞的胸甘。 |
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實驗圖片 | 檢測方法 | 檢測指標(biāo) | 實驗圖片 | PMID |
Western blot |
GRP78 / FASL / Bcl-2 / LC3
Ac-H3K9 / Fibronectin / Collagen 1 / α-SMA
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