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  2. Apoptosis
  3. Bcl-2 Family
  4. TW-37

TW-37 是一種有效的 Bcl-2 抑制劑，作用于 Mcl-1，Bcl-2 和 Bcl-xL，Ki 值分別為 260，290 和 1110 nM。

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TW-37 Chemical Structure

TW-37 Chemical Structure

CAS No. : 877877-35-5

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規(guī)格 價(jià)格 是否有貨 數(shù)量
10 mM * 1 mL in DMSO ￥1010
In-stock
1 mg ￥320
In-stock
5 mg ￥800
In-stock
10 mg ￥1150
In-stock
50 mg ￥4000
In-stock
100 mg   詢價(jià)  
200 mg   詢價(jià)  

* Please select Quantity before adding items.

Customer Review

MCE 顧客使用本產(chǎn)品發(fā)表的 2 篇科研文獻(xiàn)

查看 Bcl-2 Family 亞型特異性產(chǎn)品:

  • 生物活性

  • 實(shí)驗(yàn)參考方法

  • 純度 & 產(chǎn)品資料

  • 參考文獻(xiàn)

生物活性

TW-37 is a potent Bcl-2 inhibitor with Ki values of 260, 290 and 1110 nM for Mcl-1, Bcl-2 and Bcl-xL, respectively.

IC50 & Target[1][2]

Mcl-1

260 nM (Ki)

Bcl-2

290 nM (Ki)

Bcl-xL

1110 nM (Ki)

體外研究
(In Vitro)

TW-37 (TW37) is a novel nonpeptide small-molecule inhibitor designed using a structure-based design strategy. TW-37 targets the BH3-binding groove in Bcl-2 where proapoptotic Bcl-2 proteins, such as Bak, Bax, and Bid bind. In fluorescence polarization-based binding assays using recombinant Bcl-2 and Bcl-xL proteins, TW-37 binds to Bcl-2 and Bcl-xL with Ki values of 290 and 1110 nM, respectively. TW-37 has an IC50 of 1.8 μM for endothelial cells but shows no cytotoxic effects for fibroblasts at concentrations up to 50 μM. The mechanism of TW-37-induced endothelial cell death is apoptosis, in a process mediated by mitochondrial depolarization and activation of caspase-9 and caspase-3. The effect of TW-37 on endothelial cell apoptosis is not prevented by coexposure to the growth factor milieu secreted by tumor cells. Inhibition of the angiogenic potential of endothelial cells (i.e., migration and capillary sprouting assays) and expression of the angiogenic chemokines CXCL1 and CXCL8 are accomplished at subapoptotic TW-37 concentrations (0.005-0.05 μM)[1]. TW-37 is a potent Bcl-2 and Mcl-1 inhibitor. In fluorescence polarization-based binding assays using recombinant Bcl-2, Bcl-xL, and Mcl-1 proteins, TW-37 binds to Bcl-2, Bcl-xL, and Mcl-1 with Ki values of 290, 1,110 and 260 nM, respectively[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
體內(nèi)研究
(In Vivo)

A murine model of humanized vasculature is used to investigate the biological effect of TW-37 (TW37) on human microvascular endothelial cell in vivo. Using this model, a significant decrease is observed in total blood vessel number (P<0.05) comparing both 3 and 30 mg/kg TW-37 against vehicle control. In addition to reduction in total number of blood vessels, an unusual number of occluded vessels are occurring in the treated groups. The levels of vessel occlusion are assessed by counting completely blocked vessels and determining their number as a percentage of total vessel number. TW-37 concentration mediates a significant increase in the number of occluded vessels when compared with control[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
分子量

573.70

Formula

C33H35NO6S
CAS 號
性狀

固體

顏色

White to off-white

運(yùn)輸條件

Room temperature in continental US; may vary elsewhere.
儲存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性數(shù)據(jù)
細(xì)胞實(shí)驗(yàn)： 

DMSO 中的溶解度 : ≥ 42 mg/mL (73.21 mM; 吸濕的 DMSO 對產(chǎn)品的溶解度有顯著影響，請使用新開封的 DMSO)

* "≥" means soluble, but saturation unknown.

配制儲備液
濃度 溶劑體積 質(zhì)量 1 mg 5 mg 10 mg
1 mM 1.7431 mL 8.7154 mL 17.4307 mL
5 mM 0.3486 mL 1.7431 mL 3.4861 mL
查看完整儲備液配制表

* 請根據(jù)產(chǎn)品在不同溶劑中的溶解度選擇合適的溶劑配制儲備液；一旦配成溶液，請分裝保存，避免反復(fù)凍融造成的產(chǎn)品失效。
儲備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C儲存時(shí)，請?jiān)?個(gè)月內(nèi)使用，-20°C儲存時(shí)，請?jiān)?個(gè)月內(nèi)使用。

  • 摩爾計(jì)算器

  • 稀釋計(jì)算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

質(zhì)量
=
濃度
×
體積
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

濃度 (start)

C1

×
體積 (start)

V1

=
濃度 (final)

C2

×
體積 (final)

V2

動(dòng)物實(shí)驗(yàn)：

請根據(jù)您的 實(shí)驗(yàn)動(dòng)物和給藥方式 選擇適當(dāng)?shù)娜芙夥桨浮?

以下溶解方案都請先按照 In Vitro 方式配制澄清的儲備液，再依次添加助溶劑：
——為保證實(shí)驗(yàn)結(jié)果的可靠性，澄清的儲備液可以根據(jù)儲存條件，適當(dāng)保存；體內(nèi)實(shí)驗(yàn)的工作液，建議您現(xiàn)用現(xiàn)配，當(dāng)天使用；
以下溶劑前顯示的百分比是指該溶劑在您配制終溶液中的體積占比；如在配制過程中出現(xiàn)沉淀、析出現(xiàn)象，可以通過加熱和/或超聲的方式助溶

  • 方案 一

    請依序添加每種溶劑： 10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (4.36 mM); 澄清溶液

    此方案可獲得 ≥ 2.5 mg/mL（飽和度未知）的澄清溶液。

    以 1 mL 工作液為例，取 100 μL 25.0 mg/mL 的澄清 DMSO 儲備液加到 400 μL PEG300 中，混合均勻；再向上述體系中加入 50 μL Tween-80，混合均勻；然后再繼續(xù)加入 450 μL 生理鹽水 定容至 1 mL。

    生理鹽水的配制：將 0.9 g 氯化鈉，溶解于 ddH?O 并定容至 100 mL，可以得到澄清透明的生理鹽水溶液。
  • 方案 二

    請依序添加每種溶劑： 10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: 2.08 mg/mL (3.63 mM); 懸濁液; 超聲助溶

    此方案可獲得 2.08 mg/mL的均勻懸濁液，懸濁液可用于口服和腹腔注射。

    以 1 mL 工作液為例，取 100 μL 20.8 mg/mL 的澄清 DMSO 儲備液加到 900 μL 20% 的 SBE-β-CD 生理鹽水水溶液 中，混合均勻。

    20% SBE-β-CD in Saline 的配制（4°C，儲存一周）：2 g SBE-β-CD（磺丁基醚 β-環(huán)糊精）粉末定容于 10 mL 的生理鹽水中，完全溶解至澄清透明。
動(dòng)物溶解方案計(jì)算器
請輸入動(dòng)物實(shí)驗(yàn)的基本信息：

給藥劑量

mg/kg

動(dòng)物的平均體重

g

每只動(dòng)物的給藥體積

μL

動(dòng)物數(shù)量

只
由于實(shí)驗(yàn)過程有損耗，建議您多配一只動(dòng)物的量
請輸入您的動(dòng)物體內(nèi)配方組成：
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
如果您的動(dòng)物是免疫缺陷鼠或者體弱鼠，建議 DMSO 中的在最后工作液體系中的占比盡量不超過 2%。
方案所需 助溶劑 包括：DMSO， ，均可在 MCE 網(wǎng)站選購。 ，Tween 80，均可在 MCE 網(wǎng)站選購。
計(jì)算結(jié)果
工作液所需濃度 : mg/mL
儲備液配制方法 : mg 藥物溶于 μL  DMSO（母液濃度為 mg/mL）。
您所需的儲備液濃度超過該產(chǎn)品的實(shí)測溶解度，以下方案僅供參考，如有需要，請與 MCE 中國技術(shù)支持聯(lián)系。
動(dòng)物實(shí)驗(yàn)體內(nèi)工作液的配制方法 : 取 μL DMSO 儲備液，加入 μL 。 μL ，混合均勻至澄清，再加 μL Tween 80，混合均勻至澄清，再加 μL 生理鹽水。
連續(xù)給藥周期超過半月以上，請謹(jǐn)慎選擇該方案。
請確保第一步儲備液溶解至澄清狀態(tài)，從左到右依次添加助溶劑。您可采用超聲加熱 （超聲清洗儀，建議頻次 20-40 kHz），渦旋吹打等方式輔助溶解。
純度 & 產(chǎn)品資料

純度: 99.27%

參考文獻(xiàn)
Cell Assay
[1]

The sulforhodamine B (SRB) cytotoxicity assay is used. Briefly, optimal cell density for cytotoxicity assay, 2×104 to 3×104 cells per well, is determined by growth curve analysis. HDMECs are seeded at 2.5×104 per well in a 96-well plate and allowed to adhere overnight. Drug or control is diluted in EGM2-MV and layered onto cells, which are allowed to incubate for times as indicated in the figures. Alternatively, HDMECs are coincubated with TW-37 and 0 to 100 ng/mL recombinant human VEGF (rhVEGF)165 or 0 to 100 ng/mL recombinant human CXCL8. Cells are fixed on the plates by addition of cold trichloroacetic acid (10% final concentration) and incubation for 1 hour at 4°C. Cellular protein is stained by addition of 0.4% SRB in 1% acetic acid and incubation at room temperature for 30 minutes. Unbound SRB is removed by washing with 1% acetic acid and the plates are air dried. Bound SRB is resolubilized in 10 mM unbuffered Tris-base and absorbance is determined on a microplate reader at 560 nm. Test results are normalized against initial plating density and drug-free controls. Data are obtained from triplicate wells per condition and are representative of at least three independent experiments[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[1]

Mice[1]
Porous poly L-lactic acid scaffolds (6×6×1 mm) with an average pore diameter of 180 μm are fabricated. Just before implantation, scaffolds are seeded with 1×106 HDMECs in a 1:1 Matrigel/EGM2-MV mix. Male severe combined immunodeficient (SCID) mice (CB.17.SCID) are anesthetized with ketamine and xylazine, and two scaffolds are implanted s.c. in the dorsal region of each mouse. At 10 days after transplantation, six mice per treatment are treated with 3 mg/kg or 30 mg/kg TW-37 (in vehicle: PBS/Tween 80/ethanol) or vehicle alone i.v. for 5 consecutive days. At the end of the treatment period, mice are euthanized, and the scaffolds are retrieved, fixed overnight in 10% buffered formaldehyde at 4°C, and mounted on glass slides. Immunohistochemistry is done for Factor VIII and microvessels are counted in 6 fields per scaffold and 12 scaffolds per treatment at ×200 magnification. Alternatively, sections are stained with H&E and occluded blood vessels are counted.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
參考文獻(xiàn)

完整儲備液配制表

* 請根據(jù)產(chǎn)品在不同溶劑中的溶解度選擇合適的溶劑配制儲備液；一旦配成溶液，請分裝保存，避免反復(fù)凍融造成的產(chǎn)品失效。
儲備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C儲存時(shí)，請?jiān)?個(gè)月內(nèi)使用，-20°C儲存時(shí)，請?jiān)?個(gè)月內(nèi)使用。

可選溶劑 濃度 溶劑體積 質(zhì)量 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.7431 mL 8.7154 mL 17.4307 mL 43.5768 mL
5 mM 0.3486 mL 1.7431 mL 3.4861 mL 8.7154 mL
10 mM 0.1743 mL 0.8715 mL 1.7431 mL 4.3577 mL
15 mM 0.1162 mL 0.5810 mL 1.1620 mL 2.9051 mL
20 mM 0.0872 mL 0.4358 mL 0.8715 mL 2.1788 mL
25 mM 0.0697 mL 0.3486 mL 0.6972 mL 1.7431 mL
30 mM 0.0581 mL 0.2905 mL 0.5810 mL 1.4526 mL
40 mM 0.0436 mL 0.2179 mL 0.4358 mL 1.0894 mL
50 mM 0.0349 mL 0.1743 mL 0.3486 mL 0.8715 mL
60 mM 0.0291 mL 0.1453 mL 0.2905 mL 0.7263 mL
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    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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產(chǎn)品名稱：
TW-37
目錄號：
HY-12020
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