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中文名称:维多珠单抗中文同义词:维多珠单抗英文名称:Vedolizumab英文同义词:Vedolizumab产品描述维多珠单抗类似物是一种整合素受体拮抗剂,是一种与人α4β7整合素结合的人源化IgG1单克隆抗体,分子量约147kDa,由中国仓鼠卵巢细胞生产。性质Name Biosimilar of VedolizumabCAS NO. 943609-66-3Type Whole antibodySource HumanizedTarget Integrin α4β7Clone MonocloneMolecular Weight 147 kDaFormula C6528H10072N1732O2042S42Antibody Form Purified immunoglobulinPhysical Form SolutionGrade Standard Medicine GradeStorage -70±15℃ for long-term storage, 2-8℃ for short-term storage, away from light.生物活性Vedolizumab是一种全人源化单克隆抗体,特异性拮抗α4β7整合素,抑制α4β7整合素对肠道黏膜细胞粘附分子MAdCAM-1的结合。Vedolizumab blocks the α4β7 integrin, results in gut-selective anti-inflammatory activity. Vedolizumab binds to memory CD4(+) T and B lymphocytes with subnanomolar potency (EC(50) = 0.3-0.4 nM). Vedolizumab also binds to eosinophils at high levels, and to naive T-helper lymphocytes, naive and memory cytotoxic T lymphocytes, B lymphocytes, natural killer cells, and basophils at lower levels. Vedolizumab selectively inhibits adhesion of alpha(4)beta(7)-expressing cells to mucosal addressin cell adhesion molecule 1 (median inhibition concentration [IC(50)] = 0.02-0.06 microg/ml) and fibronectin (IC(50) = 0.02 microg/ml), but not vascular cell adhesion molecule 1.不同实验动物依据体表面积的等效剂量转换表(数据来源于FDA指南) 小鼠 大鼠 兔 豚鼠 仓鼠 狗重量 (kg) 0.02 0.15 1.8 0.4 0.08 10体表面积 (m2) 0.007 0.025 0.15 0.05 0.02 0.5Km 系数 3 6 12 8 5 20动物 A (mg/kg) = 动物 B (mg/kg) × 动物 B的Km系数动物 A的Km系数例如,依据体表面积折算法,将白藜芦醇用于小鼠的剂量22.4 mg/kg 换算成大鼠的剂量,需要将22.4 mg/kg 乘以小鼠的Km系数(3),再除以大鼠的Km系数(6),得到白藜芦醇用于大鼠的等效剂量为11.2 mg/kg。储备液配制以下数据基于产品分子量,对于特殊产品,请参照COA中的储备液配制条件和说明进行操作。Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg1 mM 0.0068 mL 0.0341 mL 0.0681 mL5 mM 0.0014 mL 0.0068 mL 0.0136 mL10 mM 0.0007 mL 0.0034 mL 0.0068 mL参考文献Exclusive antagonism of the α4 β7 integrin by vedolizumab confirms the gut-selectivity of this pathway in primates.Fedyk ER, et al. Inflamm Bowel Dis. 2012 Nov;18(11):2107-19. PMID: 22419649.The binding specificity and selective antagonism of vedolizumab, an anti-alpha4beta7 integrin therapeutic antibody in development for inflammatory bowel diseases.Soler D, et al. J Pharmacol Exp Ther. 2009 Sep;330(3):864-75. PMID: 19509315.单抗药物对照品贝伐单抗,Bevacizumab 纳武单抗,Nivolumab帕妥珠单抗,Pertuzumab 曲妥珠单抗,Trastuzumab阿达木单抗,Adalimumab 帕姆单抗,Pembrolizumab迪诺苏单抗,Denosumab 阿替唑单抗,Atezolizumab优特克诺单抗,Ustekinumab 维多珠单抗,Vedolizumab1、33个产品,三种规格:1mg,2mg,5mg;2、价格优,全现货;3、科研产品,仅用科研,禁用临床;Supplier供应商:BioVector NTCC质粒载体菌株细胞蛋白抗体基因保藏中心电话:010-53513060网址http://www.biovector.net
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