Anti-hIL6R (Tocilizumab) isotype family

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Family of antibodies against human IL-6R
Anti-hIL6R (Tocilizumab) isotype family

InvivoGen provides a family of Anti-hIL6R-derived monoclonal antibodies (mAbs) in multiple human isotypes. These mAbs feature:

  • the variable region of Tocilizumab, which specifically targets the human interleukin-6 receptor (hIL6R)
  • a constant region that mediates different effector functions depending on the isotype: hIgG1, hIgG1NQ or IgA2

InvivoGen's hIL6R mAbs have been generated by recombinant DNA technology, produced in CHO cells, and purified by affinity chromatography.

IL-6R background

Tocilizumab (TCZ) is a recombinant, humanized monoclonal antibody (mAb) directed against both soluble and membrane-bound human IL-6R. TCZ exhibits anti-inflammatory activity by inhibiting the binding of the pro-inflammatory cytokine, IL-6  to its receptor [1]. IL-6 exerts its biological effects through IL-6R, and the transmembrane protein gp130. Despite only a few cells expressing IL-6R on their surface, many cells respond to IL-6 due to the existence of soluble IL-6R [2]. TCZ can block both modes of signaling [1]. TCZ has been approved for the treatment of inflammatory diseases and conditions such as rheumatoid arthritis (RA) and cytokine release syndrome (CRS), a side effect of CAR-T therapy. Furthermore, it is under investigation for the treatment of the late-stage hyperinflammation observed in severe COVID‑19 patients [3].

Key features of the Anti-hIL6R isotype family:

  • Clinically-relevant variable region targeting human IL-6R (Tocilizumab).
  • Inhibition of IL-6-dependent signaling by Anti-hIL6R-To mAbs has been validated in HEK-Blue™ IL-6 cellular assays.
  • The absence of bacterial contamination has been confirmed.

InvivoGen’s products are for research use only, and not for clinical or veterinary use.

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