- 中文名称
Atezolizumab 生物类似药, 内毒素 0.05 EU/mg
- 英文名字
- Atezolizumab Biosimilar, Endotoxin 0.05 EU/mg
- 供应商
- Promab
- 产品货号
- PMB-B00018.05
- 产品报价
- ¥询价/5mg/20mg

- 产品说明书
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- 购买方式
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- 产品新闻

- 背景资料
- What is Atezolizumab biosimilar research grade? Atezolizumab is a humanized monoclonal antibody directed against the human protein ligand PD-L1, with potential immune checkpoint inhibitory and antineoplastic activities. Atezolizumab is an Fc-engineered, humanized, monoclonal antibody (IgG1κ isotype). Atezolizumab biosimilar uses the same protein sequences as the therapeutic antibody atezolizumab. Atezolizumab lacks the N-glycosylation site in its Fc region by changing an aspartic acid into alanine at amino acid position 298 (amino acid position 297 according to EU nomenclature, N297A) in the heavy chain leading to minimized binding to FcγRs.nnPD-L1 (B7-H1 or CD274, programmed cell death ligand 1) and PD-L2 (B2-DC or CD273, programmed cell death ligand 2) are the two ligands for the receptor PD-1 (CD279, programmed death 1). PD-L1 is an immune checkpoint molecule expressed on both tumor cells and certain immune cells. The binding of PD-L1 to its receptors PD-1 or B7.1 on activated T cells causes an inhibitory signal to suppress their production in the lymph nodes, thereby preventing immune responses to events such as pregnancy or autoimmune disease. This pathway is also utilized by cancer cells to evade the immune system through evasion of anti-tumor T-cell response. Furthermore, over-expression of PD-L1 and PD-1 has been linked to increased tumor aggressiveness and poorer prognosis. Atezolizumab binds directly and selectively to PD-L1 and blocks interaction with both PD-1 and B7.1 receptors, thus reinvigorates and enhances the body’s adaptive anti-cancer activity. Disrupting the PD-L1/B7.1 interaction may also enhance T-cell priming, which could result in increased duration of response and survival.
- 应用类型
- Flow cytometry, animal model study
- 免疫原
- Human PD-L1
- 来源宿主
- CHO cells
- 反应性
- Human
- 保存建议
- Store at 4°C 1 month, store at -20°C to -70°C 12 month. protected from prolonged exposure to light. Avoid freeze/thaw cycles.
- 其他
- ProMab 生物技术公司通过整合生物信息学、分子生物学、蛋白质表达、纯化技术、基因克隆、微生物学和免疫学,利用新型高通量技术开发重组蛋白、抗体和工程细胞系并将其商业化。专注于免疫治疗领域,特别是 CAR-T/NK 细胞技术。ProMab 还开发了一种新型的 mRNA 脂质纳米颗粒(mRNA-LNP)平台,用于即用型试剂和定制研究服务,以推进现有产品并扩展到更多的研究领域。

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