多发性骨髓瘤(R/R MM)是一种难治性恶性浆细胞疾病,占所有血液肿瘤的10%左右。据弗若斯特沙利文估算,2023年中国多发性骨髓瘤的患病人数约为15.3万人,新发病例数约为2.32万人,预计到2030年,中国多发性骨髓瘤的患病人数将增长至26.63万人。但在传统治疗方式下,复发或难治性多发性骨髓瘤患者的预后较差,且治疗选项很少,而BCMA作为表达在成熟B淋巴细胞和浆细胞表面的分子,无论在新诊断还是复发的MM病人中都存在,使得BCMA成为利用细胞疗法治疗R/R MM的一个有力靶标。目前,已有多款BCMA CAR-T细胞疗法获批上市,实际上,关于靶向BCMA的细胞疗法除了自体BCMA CAR-T疗法研究以外,还包括通用型CAR-T、多靶点CAR-T、CAR-NK疗法以及免疫检查点联合疗法等多种新型疗法模式,不断给肿瘤患者带来新希望。
ACROBiosystems百普赛斯
高品质BCMA靶点蛋白、ADA定制服务
支持BCMA细胞疗法CMC质控、临床研究!
为更好支持各种BCMA CAR新型细胞疗法开发,ACROBiosystems百普赛斯依托Star Staining定点标记技术平台开发了一系列独具特色的Star Staining荧光定点标记BCMA蛋白产品,包括Alexa Fluor 488、Alexa Fluor 555、Alexa Fluor 647、FITC、APC、PE等多种荧光,适用于单CAR、双CAR、多CAR等做多种结构类型,满足BCMA细胞治疗药物在质控和临床样本分析中更高质量标准要求。
极低非特异背景
Star Staining BCMA系列产品经未转染CAR的PBMC细胞双染批检测验证,无非特异背景问题,特异性显著高于竞品,保证CAR表达检测结果的特异性和准确性,适用于BCMA CAR-T临床样本分析。
Non-specific binding to non-transduced PBMCs between PE-Labeled Human BCMA Protein of Acro and competitor. 5e5 of non-transduced PBMCs were stained with PE -Labeled Human BCMA Protein and anti-CD3 antibody, washed and then analyzed with FACS. FITC signal was used to evaluate the expression of CD3+ T cells in non-transduced PBMCs, and PE signal was used to evaluate the non-specific binding activity to non-transduced PBMCs.
Non-specific binding to non-transduced PBMCs between FITC-Labeled Human BCMA Protein of Acro and competitor. 5e5 of non-transduced PBMCs were stained with FITC-Labeled Human BCMA Protein and anti-CD3 antibody, washed and then analyzed with FACS. PE signal was used to evaluate the expression of CD3+ T cells in non-transduced PBMCs, and FITC signal was used to evaluate the non-specific binding activity to non-transduced PBMCs.
高批间一致性
不同荧光标记产品的不同批次蛋白活性可保持一致,具有高批间一致性,以确保长期用于BCMA CAR-T细胞质控和临床样本分析中检测结果的稳定性和可靠性。
Binding activity of different lots of FITC-Labeled Human BCMA (Cat. No. BCA-HF2H3) and AF555-Labeled Human BCMA (Cat. No. BCA-HA2H7) against anti-BCMA CAR-293 cells was evaluated by flow cytometry. The result shows very high batch-to-batch consistency.
高稳定性
高稳定性:25℃条件下加速48h和反复冻融三次,BCMA蛋白依然可保持较高的生物活性,显示出高度稳定性,可放心储存和使用。
PE-Labeled Human BCMA (Cat. No. BCA-HP2H7) and FITC-Labeled Human BCMA (Cat. No. BCA-HF2H3) at 25℃ for 48 hours and freeze-throw cycles are stable without performance reduction.
抗独特型抗体是能够识别抗体可变区并产生特异性结合的抗体类型,其与一般荧光二抗的不同在于:后者识别的是抗体的恒定区域,而前者识别的是CAR结构上的scFv可变区,故对于临床前及临床复杂背景样本中的CAR阳性细胞检测,抗独特型抗体具有更高的特异性和灵敏度,且PK流式检测时可表现出更低的非特异性背景优势,因此,抗独特型抗体是进行PK药代动力学研究、免疫原性评价的重要试剂。
抗独特型抗体可特异性识别CAR scFv
ACROBiosystems作为专注于生物药开发过程的蛋白技术、产品和服务的全球化品牌,可提供靶向BCMA细胞治疗药物的高亲和力、特异性的单克隆/多克隆抗独特型抗体、免疫原性检测试剂盒等一站式定制开发服务,服务周期短,开发成本低。
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