Rebastinib

Rebastinib

货号:
IR0640

品牌:
Jinpan

Rebastinib

暂无详情
产品简介
MDL MFCD19443646
别名 DCC-2036
CAS 1020172-07-9
分子式 C30H28FN7O3
分子量 553.59
储存条件 2-8°C
纯度 Purity≥98%
单位
生物活性 Rebastinib (DCC-2036) 是一种 Bcr-Abl 抑制剂抑制剂,作用于 Abl1WT 和 Abl1T315I,IC50 分别为 0.8 nM 和 4 nM,也抑制SRC,KDR,FLT3 和 Tie-2,低活性作用于c-Kit。[1]
In Vitro Rebastinib(DCC-2036)抑制ABL1native和网守突变体ABL1T315I,IC50分别为0.8 nM和4 nM。 Rebastinib有效(IC50 0.82 nM)抑制u-ABL1native,其被认为主要存在于无活性的II型构象中。此外,Rebastinib还强烈抑制p-ABL1native(IC50 2 nM),后者更容易采用活性的I型构象。更重要的是,Rebastinib有效抑制u-ABL1T315I(IC50 5 nM)和p-ABL1T315I(IC50 4 nM),由于T315I突变使活化的疏水性脊柱稳定,两者都主要以I型构象存在。 Rebastinib也有效抑制ABL1H396P(IC50 1.4 nM),与ABL1T315I一样,由于突变体Pro396强加的骨架扭转角受限,因此易于主要以I型激活构象存在。除ABL1外,Rebastinib还抑制SRC家族激酶LYN,SRC,FGR和HCK,PDGFRα和PDGFRβ,IC50为29±1,34±6,38±1,40±1,70±10和113分别为±10 nM。值得注意的是,Rebastinib保留了c-KIT(IC50 481 nM)。 Rebastinib有效抑制表达天然BCR-ABL1native的Ba / F3细胞的增殖(IC50 5.4nM)。 Rebastinib还抑制Ph +细胞系K562的增殖(IC50 5.5nM)。 REBASTINIB(DCC-2036)还抑制BCR-ABL1的几种常见TKI抗性突变体的增殖,包括G250E,Q252H,Y235F,E255K,V299L,F317L和M351T,IC50范围为6-150nM。 Rebastinib有效抑制BCR-ABL1native(IC50 29 nM)和BCR-ABL1T315I(IC50 18 nM)的自身磷酸化,以及两种细胞系中STAT5的磷酸化(IC50分别为28 nM和13 nM)[1]。
In Vivo 单次口服剂量的Rebastinib(DCC-2036)100 mg / kg可提供超过12μM的循环血浆水平长达24小时(数据未显示),并有效抑制BCR-ABL1信号传导长达8小时的Ba /从BM和携带荷瘤小鼠的脾分离的F3-BCR-ABL1T315I白血病细胞,通过磷酸-STAT5的细胞内流式细胞术染色和磷酸-BCR-ABL1和磷酸-STAT5的组织提取物的免疫印迹评估。用口服强饲法以100mg / kg每天一次用Rebastinib治疗携带Ba / F3-BCR-ABL1T315I白血病细胞的小鼠显著延长其存活,而每天两次100mg / kg的伊马替尼是无效的。在这种侵袭性的同种异体移植模型中,Rebastinib(DCC-2036)对治疗BCR-ABLT315I白血病同样有效,因为每天两次100 mg / kg的伊马替尼用于治疗BCR-ABL1native白血病,并减少白血病细胞在脾脏中的负担。治疗小鼠[1]。
激酶实验 来自患有复发和难治性Ph + B-ALL和可检测的T315I突变(等位基因频率40%)的患者的外周血原始细胞在补充有100μM2-巯基乙醇和0.5%BSA的IMDM中孵育过夜(初始细胞存活率> 90%),并且无药物或伊马替尼(1μM)或瑞巴斯替尼(DCC-2036)(50,200和1000 nM)。温育后,裂解细胞,并如上所述对蛋白质提取物进行免疫印迹分析。将患有慢性期CML和L298V突变的患者的外周血单核细胞(7.5×105)在不同浓度的Rebastinib(DCC-2036)或DMSO中孵育3小时,然后进行裂解和免疫印迹分析[1]。
靶点 Bcr-Abl
动物实验 小鼠[1]通过用BCR-ABL1native或BCR-ABL1T315I逆转录病毒转导而转化为白细胞介素-3独立性的Ba / F3细胞(1×106)被静脉内注射到同系Balb / c受体中。注射后第3天开始,给予小鼠伊马替尼(100 mg / kg水,每日两次,通过口服强饲)或瑞巴司他(DCC-2036)(100 mg / kg,0.5%CMC / 1%Tween-80,一次)每日通过口服强饲法)或仅用载体(0.5%CMC / 1%吐温-80)。为了诱导CML样白血病,静脉注射150mg / kg 5-氟尿嘧啶(5-FU),用BCR-ABL1T315I逆转录病毒转导后4天收获雄性Balb / c供体小鼠的骨髓(BM),和5×将105个细胞静脉内注射到经亚致死剂量照射的(400cGy)Balb / c受体中。从移植后第5天开始,通过单独载体或Rebastinib(DCC-2036)以100mg / kg口服强饲法每天一次治疗组群。对于B细胞急性淋巴细胞白血病的诱导,来自未用5-FU预处理的供体的BM用BCR-ABL1T315I逆转录病毒转导一次,并将1×106细胞注射到经亚致死照射的Balb / c受体中。从移植后第8天开始,每天通过口服管饲法单独使用载体,每天两次,使用Rebastinib(DCC-2036),60 mg / kg,伊马替尼100 mg / kg(水中),或达沙替尼10 mg / kg(在80mM柠檬酸pH 3.1中)。
细胞实验 将Ba / F3细胞(3×103细胞/孔)或原代Ph +白血病细胞(5×10 4细胞/孔)一式三份铺板于含有测试化合物(例如,Rebastinib(DCC-2036))的96孔板中。 72小时后,通过刃天青或MTT测定法定量活细胞。结果代表至少三次独立实验的平均值[1]。
数据来源文献 [1]. Chan WW, et al. Conformational control inhibition of the BCR-ABL1 tyrosine kinase, including the gatekeeper T315I mutant, by the switch-control inhibitor DCC-2036. Cancer Cell. 2011, 19(4), 556-568
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Rebastinib是一种Bcr-Abl抑制剂。

Altiratinib

Altiratinib

货号:
IA3230

品牌:
Jinpan

Altiratinib

暂无详情
产品简介
有效期 2年
描述 是多靶点激酶抑制剂,抑制 MET,TIE2,VEGFR2,FLT3,Trk1,Trk2 和 Trk3等。
MDL MFCD28900672
别名 DCC-2701
CAS 1345847-93-9
分子式 C26H21F3N4O4
分子量 510.46
储存条件 2-8℃
纯度 ≥98%
外观(性状) White to off-white Solid
单位
生物活性 Altiratinib (DCC-2701) inhibits not only mechanisms of tumor initiation and progression, but also drug resistance mechanisms in the tumor and microenvironment through balanced inhibition of MET, TIE2 (TEK), and VEGFR2 (KDR) kinases. Altiratinib durably inhibits MET, both wild-type and mutated forms, in vitro and in vivo. Through its balanced inhibitory potency versus MET, TIE2, and VEGFR2, altiratinib provides an agent that inhibits three major evasive (re)vascularization and resistance pathways (HGF, ANG, and VEGF) and blocks tumor invasion and metastasis. Altiratinib exhibits properties amenable to oral administration and exhibits substantial blood-brain barrier penetration, an attribute of significance for eventual treatment of brain cancers and brain metastases.[1]
In Vitro Altiratinib is >10-fold selective for MET versus FMS and KIT, and >50-fold selective for MET versus ABL1, FYN, HER1 (EGFR), p38α (MAPK14), PDGFRα, PDGFRβ, RET, and SRC. Altiratinib exhibits IC50s of 0.69 nmol/L in K562 cells, 1.2 nmol/L in SK-N-SH cells for inhibition of NGF-stimulated TRKA phosphorylation. Altiratinib inhibits constitutive TRKA phosphorylation with an IC50 of 1.4 nmol/L in KM-12 cells. Altiratinib inhibits HGF-stimulated MET phosphorylation in HUVECs, exhibiting an IC50 of 2.3 nmol/L. In ANG1-stimulated HUVECs and EA.hy926 cells, altiratinib exhibits IC50 values of 1.0 nmol/L and 2.6 nmol/L, respectively, for inhibition of TIE2 phosphorylation. In VEGF-stimulated HUVECs, altiratinib inhibits VEGFR2 phosphorylation with an IC50 of 4.7 nmol/L. Altiratinib potently inhibits cellular proliferation in MET-amplified EBC-1 and MKN-45 cells, as well as TPM3-TRKA fusion KM-12 cells, but only weakly inhibits other cancer cell lines, including proliferation of M-NFS-60 (IC50, 770 nmol/L); A375, BT-474, HCT-116, PC-3, SK-MEL-28, U87, and A549 cells (IC50s > 1,000 nmol/L)[1].
In Vivo Altiratinib alone and in combination with bevacizumab increases survival and decreases circulating TIE2+-expressing monocytes in the U87 glioma model. In the PyMT syngeneic mammary tumor model which recapitulates many features of human breast cancer, altiratinib alone and in combination with paclitaxel inhibits PyMT mammary tumor growth, reduces tumoral TIE2+ stromal cell density, and inhibits lung metastasis. Altiratinib achieves a brain:plasma ratio of 0.23 after systemic dosing, indicating significant penetration of the murine blood-brain barrier[1].
SMILES O=C(C1(C(NC2=CC=C(F)C=C2)=O)CC1)NC3=CC(F)=C(OC4=CC(NC(C5CC5)=O)=NC=C4)C=C3F
靶点 VEGFR,Trk receptor
动物实验 Cells are added to 96-well (EBC-1, M-NFS-60, and SK-MEL-28: 2,500 cells/well; MKN-45: 5,000 cells/well; MV-4-11: 10,000 cells/well) or 384-well plates (A375 and HCT-116: 625 cells/well; BT-474, KM-12, PC-3, and U-87-MG: 1,250 cells/well). Plates are incubated for 72 hours. Viable cells are quantified using resazurin using a plate reader with excitation at 540 nm and emission at 600 nm.[1]
细胞实验 Animal Models: MKN-45 xenograft mouse (Female nude mice); Dosages: 10 and 30 mg/kg; Administration: oral[1]
数据来源文献 1] Smith BD, et al. Mol Cancer Ther. 2015, 14(9):2023-34.
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