T assays were conducted, and the mean percent relative activity is reported (see text). A dose response from a single assay of the three is presented here as representative data. e Representative nonconstrained dose?response curves of ABP 501 (red), adalimumab (US) (black), and adalimumab (EU) (blue) showing binding to FcRn. Each point is a mean of three replicates ?standard deviation. Adalimumab
Certolizumab is reduced in Crohn's disease relative to the efficacy observed with adalimumab [24, 25], which suggests that Fc-mediated effector functions may be important. Binding of mAbs to FcRn affects clearance, so a similarity assessment of biosimilars should also include sensitive methods to assess binding to FcRn. ABP 501 was shown to have similar binding to FcRn as compared with adalimumab.
To mediate ADCC in vitro [9, 17, 23]. Although the contribution of ADCC activity to clinical efficacy is unclear, it is important to characterize all activities of the candidate mAb, especially those that can be affected by differences in post-translational modifications, such as glycosylation. The ability of ABP 501 to induce ADCC was assessed using MT-3 cells as target cells, and NK-92M1 cells s
Functions in order to finely control the immune response in vivo. Among its cellular functions, TNFa is able to induce cytokines, chemokines, proliferation, and also cell death. The induction of pro-inflammatory versus death signals depends upon the molecular context of the responding cell, and specifically whether NFjB is involved [8]. Adding to the complexity of signaling, it is also reported th
Functions in order to finely control the immune response in vivo. Among its cellular functions, TNFa is able to induce cytokines, chemokines, proliferation, and also cell death. The induction of pro-inflammatory versus death signals depends upon the molecular context of the responding cell, and specifically whether NFjB is involved [8]. Adding to the complexity of signaling, it is also reported th
Onstrated since all of the ABP 501 lots fell within the quality range established based on the adalimumab (US) lots tested. Another mechanism for inducing cell death is the induction of CDC in cells expressing mbTNFa. A comparison of the CDC activity of ABP 501 to that of adalimumab (US) and adalimumab (EU) using MT-3 cells as target cells was conducted. Mean (three independent experiments) percen
To mediate ADCC in vitro [9, 17, 23]. Although the contribution of ADCC activity to clinical efficacy is unclear, it is important to characterize all activities of the candidate mAb, especially those that can be affected by differences in post-translational modifications, such as glycosylation. The ability of ABP 501 to induce ADCC was assessed using MT-3 cells as target cells, and NK-92M1 cells s
To mediate ADCC in vitro [9, 17, 23]. Although the contribution of ADCC activity to clinical efficacy is unclear, it is important to characterize all activities of the candidate mAb, especially those that can be affected by differences in post-translational modifications, such as glycosylation. The ability of ABP 501 to induce ADCC was assessed using MT-3 cells as target cells, and NK-92M1 cells s