BIBR 1532
Cat.No:IB0820 Solarbio
CAS:321674-73-1
Storage:Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:White to light yellow Solid
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BIBR 1532CAS:321674-73-1
Storage:Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:White to light yellow Solid
Qty:
Size:
CAS | 321674-73-1 |
Name | BIBR 1532 |
Molecular Formula | C21H17NO3 |
Molecular Weight | 331.36 |
Solubility | Soluble in DMSO |
Purity | ≥98% |
Appearance | White to light yellow Solid |
Storage | Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year |
MDL | MFCD11112195 |
SMILES | O=C(O)C1=CC=CC=C1NC(/C=C(C2=CC=C3C=CC=CC3=C2)\C)=O |
Target Point | Telomerase inhibitor |
Passage | Cell Cycle;DNA Damage/DNA Repair |
Background | BIBR 1532 is a potent and selective noncompetitive inhibitor of telomerase. |
Biological Activity | BIBR 1532 是一种有效的,选择性的 telomerase 非竞争性抑制剂,IC50 值为 100 nM[1-5]。 |
IC50 | 100nM(telomerase)[1-5] |
In Vitro | BIBR 1532(2.5μM)通过抑制MCF-7/WT和马法兰抗性MCF-7/MlnR细胞系中的端粒酶活性,降低集落形成能力,诱导端粒长度缩短并引起化学治疗致敏[3]。 BIBR 1532在T细胞幼淋巴细胞白血病(T-PLL)中以剂量依赖性方式具有细胞毒性[4]。 BIBR 1532与卡铂(一种化疗药物)联合可消除ES2,SKOV3和TOV112D细胞系中卵巢癌球体形成细胞[5]。 BIBR 1532抑制JVM13白血病细胞的增殖,IC50为52μM,并且在其他白血病细胞系如Nalm-1,HL-60和Jurkat中也发生类似的作用。 BIBR 1532对急性髓性白血病(AML)具有抗增殖作用,IC50为56μM,对正常造血祖细胞的增殖能力没有影响[2]。 |
Cell Experiment | 将细胞一式三份涂布在具有不同浓度的BIBR1532的完全RPMI 1640培养基中。 24至72小时后,加入水溶性四唑(WST-1),通过线粒体还原酶系统转化为甲..活细胞数量的增加导致线粒体脱氢酶活性的增加,导致形成的甲dye染料的增加,其在孵育2,3和4小时后通过ELISA读数器定量。 |
Kinase Experiment | 对于使用内源性端粒酶的直接端粒酶测定,将10μL富含端粒酶的提取物与不同浓度的BIBR1532混合,最终体积为20μL。在冰上预孵育15分钟后,加入20μL反应混合物,通过将管转移至37℃开始反应。反应混合物中的最终浓度为25mM Tris-Cl(pH8.3),1mM MgCl 2,1mM EGTA,1mM dATP,1mM dTTP,6.3μM冷dGTP,15μCi[α-32P] dGTP(3000 Ci)/mmol; NEN),1.25mM亚精胺,10单位RNasin,5mM 2-巯基乙醇和2.5μMTS-引物(5'-AATCCGTCGAGCAGAGTT)。对于重组酶,测定1-7μL亲和纯化的端粒酶(含有少于0.025μMhTERT),最终体积为40μL,含有50 mM Tris乙酸盐(pH 8.5),50 mM KCl,1 mM MgCl 2,1 mM亚精胺,5mM 2-巯基乙醇,1mM dATP,1mM dTTP,2.5μMdGTP,15μCi[α-32P] dGTP(3000Ci/mmol)和2.5μM(TTAGGG)3。通过在37℃温育2小时开始反应,并通过加入50μLRNase混合物(0.1mg/mL RNaseA-100u/mL RNaseT1在10mM Tris-Cl(pH8.3)和20mm EDTA中)终止反应。在37℃下孵育20分钟。通过在10mM Tris-Cl(pH 8.3)和0.5%w/v SDS中加入50μL0.3mg/ m蛋白酶K,使样品脱蛋白,在37℃温育30分钟。通过苯酚提取和乙醇沉淀回收DNA,并在8%(内源性端粒酶)或12%(重组端粒酶)聚丙烯酰胺 - 尿素凝胶上分析延伸产物。将干燥的凝胶暴露于柯达磷光成像仪屏幕,并分析结果。 |
Data Literature Source | [1]. Pascolo E,et al. Mechanism of human telomerase inhibition by BIBR1532,a synthetic,non-nucleosidic drug candidate. J Biol Chem. 2002 May 3;277(18):15566-72. [2]. El-Daly H,et al. Selective cytotoxicity and telomere damage in leukemia cells using the telomerase inhibitor BIBR1532. Blood. 2005 Feb 15;105(4):1742-9. [3]. Ward RJ,et al. Pharmacological telomerase inhibition can sensitize drug-resistant and drug-sensitive cells to chemotherapeutic treatment. Mol Pharmacol. 2005 Sep;68(3):779-86. [4]. R th A,et al. Short telomeres and high telomerase activity in T-cell prolymphocytic leukemia. Leukemia. 2007 Dec;21(12):2456-62. [5]. Meng E,et al. Targeted inhibition of telomerase activity combined with chemotherapy demonstrates synergy in eliminating ovarian cancer spheroid-forming cells. Gynecol Oncol. 2012 Mar;124(3):598-605. |
Unit | Bottle |
Specification | 5mg 10mg |
BIBR 1532 是一种有效的,选择性的 telomerase 非竞争性抑制剂。
Remark:These protocols are for reference only. Solarbio does not independently validate these methods.
Note:
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