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BIBR 1532
BIBR 1532 is a potent, selective, non-competitive telomerase inhibitor with IC50 of 100 nM in a cell-free assay. No inhibition of DNA and RNA polymerases, including HIV reverse transcriptase are observed at concentrations vastly exceeding the IC50 for telomerase. BIBR 1532 induces apoptosis in cancer cells.
CAS No. 321674-73-1
文献中Selleckの製品使用例（31）
製品安全説明書
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純度：
99.99%
99.99
BIBR 1532関連製品
シグナル伝達経路
Telomerase阻害剤の選択性比較
Cell Data
| Cell Lines | Assay Type | Concentration | Incubation Time | 活性情報 | PMID |
|---|---|---|---|---|---|
| human MDA-MB-231 cells | Function assay | 24 h | Inhibition of telomerase in human MDA-MB-231 cells after 24 hrs by TRAP-PCR-ELISA, IC50=0.17 μM | 25965778 | |
| human HeLa cells | Function assay | 2 h | Inhibition of telomerase in human HeLa cells after 2 hrs by [alpha-32P]dGTP incorporation assay, IC50=93 nM | 22413845 | |
| human MGC803 cells | Function assay | 24 h | Inhibition of telomerase in human MGC803 cells after 24 hrs by TRAP-PCR-ELISA, IC50=0.28 μM | 25554922 | |
| HeLa | Function assay | 15 mins | Inhibition of telomerase in human HeLa cells using 5'-AAT CCG TCG AGC AGA GTT-3' as substrate incubated for 15 mins prior to extension reaction by telomeric repeat amplification protocol, IC50=3.6μM | 22413845 | |
| HeLa | Function assay | 15 mins | Inhibition of telomerase in human HeLa cells using 5'-AAT CCG TCG AGC AGA GTT-3' as substrate incubated for 15 mins prior to extension reaction followed by compound washout by spin-telomeric repeat amplification protocol, IC50=4.6μM | 22413845 | |
| HeLa | Function assay | 30 mins | Inhibition of human telomerase isolated from human HeLa cells nuclear extracts expressed in insect cells assessed as [33P]dCMP incorporation after 30 mins by liquid scintillation counting analysis, IC50=0.093μM | 24053596 | |
| HEK293 | Function assay | Inhibition of human telomerase activity isolated from HEK293 cells assessed as reduction in dNTP incorporation using 5'-biotinylated AATCCGTCGAGCAGAGTT primer by flash plate assay, IC50=3.6μM | 27657809 | ||
| 他の多くの細胞株試験データをご覧になる場合はこちらをクリックして下さい | |||||
生物活性
| 製品説明 | BIBR 1532 is a potent, selective, non-competitive telomerase inhibitor with IC50 of 100 nM in a cell-free assay. No inhibition of DNA and RNA polymerases, including HIV reverse transcriptase are observed at concentrations vastly exceeding the IC50 for telomerase. BIBR 1532 induces apoptosis in cancer cells. | ||
|---|---|---|---|
| Targets |
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| In Vitro | ||||
| In vitro | BIBR 1532 exhibits an non-competitive inhibitory effect on telomerase activity. [1] In JVM13 leukemia cell line, BIBR 1532 shows an antiproliferative effect in a dose-dependent range with IC50 of 52 μM, and similar results are also observed in other leukemia cell lines including Nalm-1, HL-60, and Jurkat. In addition, BIBR 1532 results in a direct antiproliferative effect on acute myeloid leukemia (AML) with IC50 of 56 μM without affecting the proliferative capacity of normal hematopoietic progenitor cells. [2] BIBR 1532 (2.5 μM) reduces colony-forming ability, and induces telomere length shortening as well as chemotherapeutic sensitization by inhibiting telomerase activity in MCF-7/WT and melphalan-resistant MCF-7/MlnR cell lines. [3] In T-cell prolymphocytic leukemia (T-PLL), BIBR 1532 shows selective cytotoxic effects in a dose-dependent manner and BIBR 1532-treated cells also demonstrates nuclear condensation and formation of apoptotic bodies morphologically compatible with apoptosis. [4] A recent study shows that combination treatment of BIBR 1532 and chemotherapeutic agents carboplatin results in a potential synergy for eliminateing ovarian cancer spheroid-forming cells in ES2, SKOV3, and TOV112D cell lines. [5] | |||
|---|---|---|---|---|
| Kinase Assay | Conventional Telomerase Assay | |||
| For the direct telomerase assay with the endogenous telomerase, 10 μL of telomerase-enriched extract is mixed with different concentrations of BIBR1532 in a final volume of 20 μL. After 15-minute preincubation on ice, 20 μL of the reaction mixture is added, and the reaction is initiated by transferring the tubes to 37 °C. The final concentrations in the reaction mixture are 25 mM Tris-Cl (pH 8.3), 1 mM MgCl2, 1 mM EGTA, 1 mM dATP, 1 mM dTTP, 6.3 μM cold dGTP, 15 μCi [α-32P]dGTP (3000 Ci/mmol; NEN), 1.25 mM spermidine, 10 units of RNasin, 5 mM 2-mercaptoethanol, and 2.5 μM TS-primer (5 | ||||
| 細胞実験 | 細胞株 | JVM13 | ||
| 濃度 | 0 to 80 μM | |||
| 反応時間 | 24 -72 hours | |||
| 実験の流れ | Cells are plated as triplicates in complete RPMI 1640 medium with various concentrations of BIBR1532. After 24 to 72 hours, water-soluble tetrazolium (WST-1) is added, which is transformed into formazan by mitochondrial reductase systems. The increase in the number of viable cells results in an increase of activity of mitochondrial dehydrogenases, leading to an increase of formazan dye formed, which is quantified by ELISA reader after 2, 3, and 4 hours of incubation. |
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化学情報
| 分子量 | 331.36 | 化学式 | C21H17NO3 |
| CAS No. | 321674-73-1 | SDF | Download BIBR 1532 SDFをダウンロードする |
| Smiles | CC(=CC(=O)NC1=CC=CC=C1C(=O)O)C2=CC3=CC=CC=C3C=C2 | ||
| 保管 | |||
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In vitro |
DMSO : 66 mg/mL ( (199.17 mM)； 吸湿したDMSOは溶解度を減少させます。新しいDMSOをご使用ください。) Ethanol : 16 mg/mL Water : Insoluble |
モル濃度計算器 |
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in vivo Add solvents to the product individually and in order. |
投与溶液組成計算機 | ||||
実験計算
投与溶液組成計算機(クリア溶液)
ステップ１：実験データを入力してください。（実験操作によるロスを考慮し、動物数を1匹分多くして計算・調製することを推奨します）
mg/kg
g
μL
匹
ステップ２：投与溶媒の組成を入力してください。（ロット毎に適した溶解組成が異なる場合があります。詳細については弊社までお問い合わせください）
% DMSO
%
% Tween 80
% ddH2O
%DMSO
%
計算結果：
投与溶媒濃度： mg/ml;
DMSOストック溶液調製方法： mg 試薬を μL DMSOに溶解する（濃度 mg/mL, 注：濃度が当該ロットのDMSO溶解度を超える場合はご連絡ください。 )
投与溶媒調製方法：Take μL DMSOストック溶液に μL PEG300，を加え、完全溶解後μL Tween 80，を加えて完全溶解させた後 μL ddH2O，を加え完全に溶解させます。
投与溶媒調製方法：μL DMSOストック溶液に μL Corn oil，を加え、完全溶解。
注意：１.ストック溶液に沈殿、混濁などがないことをご確認ください；
２.順番通りに溶剤を加えてください。次のステップに進む前に溶液に沈殿、混濁などがないことを確認してから加えてください。ボルテックス、ソニケーション、水浴加熱など物理的な方法で溶解を早めることは可能です。
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他に質問がある場合は、お気軽にお問い合わせください。
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よくある質問（FAQ）
質問1:
Does BIBR1532 diffuse through the plasma membrane and nuclear membrane?
回答
BIBR1532 is a cell permeable molecule.
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