MTI-31

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MTI-31  纯度: 99.94%

MTI-31 是一种有效的，具有口服活性的，且高度选择性的 mTORC1 和 mTORC2 抑制剂。MTI-31 高选择性作用于 mTOR，Kd 为 0.20 nM。MTI-31 对 mTOR 的 IC50 为 39 nM。MTI-31可用于乳腺癌的研究。

MTI-31

MTI-31 Chemical Structure

CAS No. : 1567915-38-1

规格 价格 是否有货 数量
5 mg ￥7500 In-stock
10 mg ￥12000 In-stock
50 mg   询价  
100 mg   询价  

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生物活性

MTI-31 is a potent, orally active and highly selective inhibitor of mTORC1 and mTORC2. MTI-31 is selective for mTOR (Kd: 0.20 nM) versus PIK3CA, PIK3CB and PIK3G with >5,000 fold selectivity in mTOR binding assays. MTI-31 shows an IC50 of 39 nM for mTOR in LANCE assay of mTOR substrate phosphorylation with 100 μM ATP. MTI-31 can be used for the research of breast cancer[1].

IC50 & Target[1]

mTOR

0.2 nM (Ki)

mTOR

39 nM (IC50, 100 μM ATP)

mTORC1

 

mTORC2

 

体外研究
(In Vitro)

MTI-31 acts as a potent and selective inhibitor of mTOR enzymatic activity capable of targeting both mTORC1 and mTORC2 functions in cancer cells[1].
MTI-31 (0.01-100 μM) elicits a potent and more substantial inhibition of cell growth than that of Rapamycin[1].
Treatment with MTI-31 for 6 h demonstrates a dose-dependent inhibition of both the mTORC1 substrates P-S6K1(T389), P-S6(S235/6), P-4EBP1(T70) and mTORC2 substrate P-AKT(S473), achieving 50% inhibition at ≤0.12 μM in three representative tumor cell lines harboring mTOR pathway dysregulation (786-O renal, U87MG glioma and MDA-MB-453 breast)[1].
MTI-31-induced apoptosis requires mTORC2-regulated Bim- and GSK3 activity[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Proliferation Assay[1]

Cell Line: MDA-MB-453 cells
Concentration: 0.01, 0.1, 1, 10, 100 μM
Incubation Time: 3 days
Result: Significantly inhibited cellular proliferation after treatment for 3 days.

Western Blot Analysis[1]

Cell Line: 786-O renal, U87MG glioma and MDA-MB-453 breast cells
Concentration: 0.12, 0.37, 1.11, 3.33, 10 μM
Incubation Time: 6 hours
Result: Demonstrated a dose-dependent inhibition of both the mTORC1 substrates P-S6K1(T389), P-S6(S235/6), P-4EBP1(T70) and mTORC2 substrate P-AKT(S473).

体内研究
(In Vivo)

MTI-31 is a potent mTOR inhibitor in vivo and elicits strong antitumor efficacy. MTI-31(5-40 mg/kg; orally) is efficacious in several tumor models harboring HER2+/PIK3CAmut and/or PTEN-deficiency exemplified by MDA-MB-453 and 786-O[1].
Treatment of tumor bearing nude mice with orally administered MTI-31 inhibits growth of H1975 tumors (25 mg/kg/d; orally) or U87MG tumors (30 mg/kg/d; orally)[2].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Female nude mice bearing tumors of MDA-MB-453, 786-O or HCC1806[1]
Dosage: 2.5, 5, 10, 20, 40 mg/kg for MDA-MB-453 and 786-O; 20 and 40 mg/kg for HCC1806
Administration: Treated orally via a once daily (qd) regimen
Result: Was efficacious in several tumor models harboring HER2+/PIK3CAmut and/or PTEN-deficiency exemplified by MDA-MB-453 and 786-O. Demonstrated a dose proportional tumor growth inhibition (TGI) with a minimum efficacious dose (MED) of 5 mg/kg (>50% TGI, p<0.01) and a maximum tolerated dose (MTD) of 40 mg/kg (7-15% body weight loss without mortality).
In contrast, had limited efficacy in the HER2-/PIK3CAwt HCC1806 breast tumor model even at the highest 40 mg/kg.

分子量

474.55

Formula

C26H30N6O3
CAS 号

1567915-38-1
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : 8.33 mg/mL (17.55 mM; ultrasonic and warming and heat to 60°C)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.1073 mL 10.5363 mL 21.0726 mL
5 mM 0.4215 mL 2.1073 mL 4.2145 mL
10 mM 0.2107 mL 1.0536 mL 2.1073 mL

*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

  • 1.

    请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 0.83 mg/mL (1.75 mM); Clear solution

    此方案可获得 ≥ 0.83 mg/mL (1.75 mM，饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例，取 100 μL 8.3 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
*以上所有助溶剂都可在 Shanghai Jinpan Biotech Co Ltd 网站选购。
参考文献

  • [1]. Zhang Q, et, al. A Novel mTORC1/2 Inhibitor (MTI-31) Inhibits Tumor Growth, Epithelial-Mesenchymal Transition, Metastases, and Improves Antitumor Immunity in Preclinical Models of Lung Cancer. Clin Cancer Res. 2019 Jun 15;25(12):3630-3642.

    [2]. Qian J, et, al. Molecular regulation of apoptotic machinery and lipid metabolism by mTORC1/mTORC2 dual inhibitors in preclinical models of HER2+/PIK3CAmut breast cancer. Oncotarget. 2016 Oct 11;7(41):67071-67086.

    [3]. Wang X, et, al. Non-immunogenic, low-toxicity and effective glioma targeting MTI-31 liposomes . J Control Release. 2019 Dec 28;316:381-392.

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