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    • 40. 发明公开
    • METHODS AND DEVICES FOR IMMUNODIAGNOSTIC APPLICATIONS
    • 用于免疫诊断应用的方法和设备
    • EP2883063A1
    • 2015-06-17
    • EP13756745.9
    • 2013-08-07
    • Arryx, Inc.
    • KNUTSON, Christopher, R.KURELLA, SrideviDOORNEWEERD, Derek, D.GRANT, Christopher, F.KLINE, Timothy, R.
    • G01N33/80G01N33/68
    • G01N33/80G01N33/6854
    • Methods and devices for evaluating a sample, e.g., a plasma sample, from a subject, for detecting a target red blood cell protein or antibody are disclosed. In one embodiment, optimized antibody screening methods and devices significantly reduce the level of non-specific binding to a surface (e.g., a test surface bound with a red blood cell (rbcm) preparation), thus allowing for more efficient detection and reduced test time. In one embodiment, the optimized antibody screening method includes an immunoglobulin G (IgG) binding moiety that binds selectively and specifically to the plasma IgG present relative to the binding to the lysed rbcm preparation. In another embodiment, an optimized antibody screening method is disclosed whereby non-specific binding caused by lysed red blood cell membrane preparations can be reduced by an agent that specifically cleaves a human IgG in the hinge region. In other embodiments, the invention provides methods and devices for target capturing that include a substantially planar surface, optionally having an optimized angle, for capture. Alternative solid phase geometries for capture are disclosed. Optimized methods for cell deposition are also disclosed. Thus, optimized methods, devices, kits, assays for evaluating a sample are disclosed.
    • 公开了用于评估来自受试者的样品(例如血浆样品)以检测目标红细胞蛋白质或抗体的方法和装置。 在一个实施方案中,优化的抗体筛选方法和装置显着降低与表面(例如与红细胞(rbcm)制备物结合的测试表面)的非特异性结合水平,从而允许更有效的检测和减少测试时间 。 在一个实施方案中,优化的抗体筛选方法包括免疫球蛋白G(IgG)结合部分,其相对于与溶解的rbcm制备物的结合选择性且特异性地结合存在的血浆IgG。 在另一个实施方案中,公开了一种优化的抗体筛选方法,其中由裂解的红细胞膜制剂引起的非特异性结合可以通过特异性裂解铰链区中的人IgG的试剂降低。 在其他实施例中,本发明提供了用于目标捕获的方法和装置,其包括用于捕获的基本上平坦的表面,可选地具有优化的角度。 公开了用于捕获的替代固相几何形状。 还公开了优化的细胞沉积方法。 因此,公开了用于评估样品的优化的方法,装置,试剂盒,分析。