Lapatinib Ditosylate
Cat.No:IL0720 Solarbio
CAS:388082-77-7
Storage:Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:Light yellow to yellow Solid
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Lapatinib DitosylateCAS:388082-77-7
Storage:Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:Light yellow to yellow Solid
Qty:
Size:
CAS | 388082-77-7 |
Name | Lapatinib Ditosylate |
Molecular Formula | C29H26ClFN4O4S·2C7H8O3S |
Molecular Weight | 925.46 |
Solubility | Soluble in DMSO |
Purity | ≥98% |
Appearance | Light yellow to yellow Solid |
Storage | Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year |
EC | EINECS 1312995-182-4 |
MDL | MFCD09264195 |
SMILES | O=S(CCNCC1=CC=C(C2=CC=C3C(C(NC4=CC(Cl)=C(C=C4)OCC5=CC(F)=CC=C5)=NC=N3)=C2)O1)(C)=O.O=S(C6=CC=C(C)C=C6)(O)=O.O=S(C7=CC=C(C)C=C7)(O)=O |
Target Point | EGFR;ErbB2,ErbB4 |
Passage | Angiogenesis;Protein Tyrosine Kinase/RTK; JAK/STAT Signaling |
Background | Lapatinib Ditosylate is an EGFR and ErbB2 inhibitor. |
Biological Activity | Lapatinib ditosylate(GW-572016 ditosylate)是EGFR和ErbB2抑制剂,IC50分别为10.8和9.2 nM。[1-3] |
In Vitro | 通过测量肽底物磷酸化的抑制,产生拉帕替尼(GW2016)抑制酶活性的IC 50。除ErbB-4(IC50,367 nM)外,拉帕替尼对EGFR和ErbB-2的选择性> 300倍于其他激酶[1]。拉坦替尼(GW2016)对BT474,SKBR3,EFM192A,HCC1954,MDAMB453和MDAMB231细胞的IC50值为36±15.1 nM,80±17.3 nM,193±66.5 nM,416.6±180 nM,6.08±0.825μM和7.46±0.102μM,分别。拉帕替尼治疗导致EGFR和过表达ErbB-2的肿瘤细胞系的IC50值≤0.16μM[2]。 |
In Vivo | 拉帕替尼(GW2016)有效抑制BT474和HN5人肿瘤异种移植物的生长。两种模型的剂量反应性抑制发生在每天两次口服30和100mg / kg拉帕替尼的荷瘤小鼠的治疗中。在100mg / kg剂量下观察到肿瘤生长的完全抑制。在该剂量下,在21天治疗过程中,治疗动物体重减轻<10%。拉帕替尼治疗以剂量敏感的方式抑制HN5和BT474细胞的肿瘤异种移植物生长,口服30和100mg / kg,每日两次,在较高剂量下完全抑制肿瘤生长[1]。拉帕替尼(100 mg / kg /天,口服强饲法)在大鼠心脏组织中诱导严重的氧化损伤[3]。 |
Cell Experiment | 将细胞以下列密度接种于培养基中的96孔板中:HFF和HN5,1000细胞/孔和BT474,5000细胞/孔。 24小时后,将细胞暴露于载体(0.3%DMSO)或拉帕替尼(1nM,10nM,100nM,1μM,10μM和100μM)。 72小时后从细胞中除去拉帕替尼,并用含有10%FBS和50μg/ mL庆大霉素(HFF和HN5)的DMEM或含有10%FBS和50μg/ mL庆大霉素(BT474)的RPMI替换。亚甲蓝染色在总时间为16天的时间点进行[1]。 |
Animal Experiment | 小鼠[1] CD-1裸雌性小鼠用于HN5人肿瘤异种移植物,其通过注射PBS:Matrigel(1:1)中的细胞悬浮液而起始。 CB-17 SCID雌性小鼠用于BT474人肿瘤异种移植物,其通过从已建立的肿瘤植入肿瘤片段(20-100mg)而起始。通过皮下注射右侧腹部植入肿瘤细胞和碎片。用卡尺测量sc肿瘤,并且每周称重两次小鼠。使用该公式从肿瘤体积估计肿瘤重量:长度×宽度2/2 =肿瘤体积(mm 3)。当肿瘤可触及,直径3-5毫米时开始治疗。拉帕替尼(30和100mg/kg)在磺基丁基醚-β-环糊精10%水溶液(CD10)的载体中每天两次给药,持续21天。将大鼠[3] Wistar大鼠(12周龄白化雄性)随机分为三组:对照(C,n = 8),曲妥珠单抗(T,n = 8)和拉帕替尼(L,n = 8)治疗。对照动物未经治疗,但T组和拉帕替尼组中的其他动物与化疗药物一起给药。曲妥珠单抗在研究的第一天通过腹膜内注射以10mg/kg /天的剂量递送一次。拉帕替尼每天以100mg/kg /天的剂量通过口服强饲法连续给药7天。所选剂量与诊所使用的剂量相当。在第8天,通过单次腹膜内注射氯胺酮和甲苯噻嗪(分别为50和5mg/kg)诱导麻醉。收集血液样品并取出心脏用于生化分析。 |
Kinase Experiment | 从杆状病毒表达系统中纯化EGFR,ErbB-2和ErbB4的细胞内激酶结构域。 EGFR,ErbB-2和ErbB-4反应在96孔聚苯乙烯圆底板中进行,终体积为45μL。反应混合物含有50mM 4-吗啉丙磺酸(pH 7.5),2mM MnCl2,10μMATP,1μCi[γ-33P] ATP /反应,50μM肽A [生物素 -(氨基己酸)-EEEEYFELVAKKK-CONH2 ],1mM二硫苏糖醇和1μL含有拉帕替尼连续稀释液的DMSO,起始浓度为10μM。通过添加指定的纯化的1型受体细胞内结构域来引发反应。加入的酶量为1pmol /反应(20nM)。通过在水中加入45μL的0.5%磷酸,在23℃下10分钟后终止反应。将终止的反应混合物(75μL)转移至磷酸纤维素滤板。将板过滤并用200μL的0.5%磷酸洗涤三次。向每个孔中加入闪烁混合物(50μL),并通过在Packard Topcount中计数来定量测定[1]。 |
Data Literature Source | [1]. Rusnak DW,et al. The effects of the novel,reversible epidermal growth factor receptor/ErbB-2 tyrosine kinase inhibitor,GW2016,on the growth of human normal and tumor-derived cell lines in vitro and in vivo. Mol Cancer Ther. 2001 Dec;1(2):85-94. [2]. O'Neill F,et al. Gene expression changes as markers of early lapatinib response in a panel of breast cancer cell lines. Mol Cancer. 2012 Jun 18;11(1):41. [3]. Eryilmaz U,et al. S100A1 as a Potential Diagnostic Biomarker for Assessing Cardiotoxicity and Implications for the Chemotherapy of Certain Cancers. PLoS One. 2015 Dec 18;10(12):e0145418. |
Unit | Bottle |
Specification | 25mg 50mg 100mg |
是EGFR和ErbB2抑制剂。
Remark:These protocols are for reference only. Solarbio does not independently validate these methods.
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