Lapatinib 拉帕替尼

Lapatinib 拉帕替尼

货号:
IL0040

品牌:
Jinpan

Lapatinib  拉帕替尼

暂无详情
产品简介
MDL MFCD09264194
EC EINECS 1806241-263-5
别名 GW572016; GSK572016
CAS 231277-92-2
分子式 C29H26ClFN4O4S
分子量 581.06
纯度 ≥98%
单位
生物活性 Lapatinib (formerly GW572016, trade names Tykerb & Tyverb), usually used in the Ditosylate form, is a potent, orally bioavailable dual EGFR/ErbB2 inhibitor with potential anticancer activity. It inhibits epidermal growth factor receptor (EGFR)/ErbB2 with IC50 of 10.8 and 9.2 nM in cell-free assays, respectively. It is an FDA approved medication used for the treatment of breast cancer and other solid tumors. Lapatinib acts by reversibly blocking the phosphorylation of EGFR, ErbB2, and the Erk-1 and-2 and AKT kinases. [1]
In Vitro Lapatinib (1 μM) induces apoptosis in NCI-N87 and OD19 cells [2]. Lapatinib inhibits the growth of EGFRoverexpressing A431 skin cancer (IC50: 0.14 μM) and ErbB2-overexpressing SK-BR-3 breast cancer cells (IC50:0.124 μM). It also inhibits the growth of ErbB2-amplified OD19 esophageal (IC50: 0.09 μM)and NCI-N87 gastric cancer cells (IC50: 0.01 μM) as well as several types of gastric cancer cells in which ErbB2 is not amplified (IC50s:0.35-8.58 μM) [3] .
In Vivo Lapatinib (100 mg/kg/day, p.o.) induces severe oxidative damage in the cardiac tissue of rat [4].Lapatinib ( 30 and 100 mg/kg, p.o., b.i.d) dose-responsive inhibited the growth of BT474 and HN5 human tumor xenografts. Complete inhibition of tumor growth is seen at the 100 mg/kg dose. At this dose, there is <10% weight loss in treated animals over the course of the 21-day treatment. Lapatinib treatment inhibits tumor xenograft growth of the HN5 and BT474 cells in a dose-responsive manner at 30 and 100 mg/kg orally, twice daily, with complete inhibition of tumor growth at the higher dose [5].
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
靶点 EGFR
数据来源文献 [1]. Mol Cancer Ther. 2001 Dec;1(2):85-94; Cancer Res. 2006 Feb 1;66(3):1630-9.
[2]. Chefrour M et al. Positive interaction between lapatinib and capecitabine in human breast cancer models: study of molecular determinants. Fundam Clin Pharmacol. 2012 Aug;26(4):530-7.
[3]. Wainberg ZA, et al. Lapatinib, a dual EGFR and HER2 kinase inhibitor, selectively inhibits HER2-amplified human gastric cancer cells and is synergistic with trastuzumab in vitro and in vivo. Clin Cancer Res. 2010 Mar 1;16(5):1509-19.
[4]. 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.
[5]. 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
规格 5mg 10mM*1mL (in DMSO) 10mg

是有效的 EGFR 和 ErbB2 抑制剂。

Lapatinib Ditosylate;二甲苯磺酸拉帕替尼

Lapatinib Ditosylate;二甲苯磺酸拉帕替尼

货号:
IL0720

品牌:
Jinpan

Lapatinib Ditosylate;二甲苯磺酸拉帕替尼

暂无详情
产品简介
MDL MFCD09264195
EC EINECS 1312995-182-4
别名 拉帕替尼二对甲苯磺酸;TykerbDitosylate
英文名称 Lapatinib Ditosylate
CAS 388082-77-7
分子式 C29H26ClFN4O4S.2C7H8O3S
分子量 925.46
纯度 ≥98%
单位
生物活性 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]。
激酶实验 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]。
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
靶点 EGFR;ErbB2,ErbB4
动物实验 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。
细胞实验 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]。
数据来源文献 [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.

规格 25mg 50mg 100mg

是EGFR和ErbB2抑制剂。