How consistent the cocktail induces disease is largely dependent on the epitopes it recognizes
The classic CIA model is mediated by autoantibodies which bind to type II collagen and complement. In mice as well as human RA patients, the antibody response that best correlates with disease is directed against the C1, J1 and U1 epitopes. The ArthritoMab™ arthritogenic cocktail of 4 monoclonal antibodies binds to these well-defined epitopes C11b, J1, D3 and U1, which are spread over the entire CII (CB8, CB10 and CB11 fragments). This possibly encourages better immune complex formation on the cartilage surface for the initiation of arthritis and produces consistent and predictable disease in all 4 paws (with predominance for the rear). Competitor products only recognize CB11, which produces variable disease that can contribute to unpredictable involvement in the paws (sometimes more front paw involvment and other times more rear involvement).
The ArthritoMab Antibody Cocktail can be used on a variety of strains, including CIA-resistant strains and transgenic strains.
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- Balb/c
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- DBA/1
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- C57Bl/6
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- B10.RIII
Disease progression is steady and controlled using ArthritoMab™ antibody cocktail, enabling investigators to evaluate various regimes. Data below was generated using Vehicle, Dexamethasone and Enbrel in the Balb/c strain (induced with 2 mg ArthritoMab™ on day 0 followed by LPS boost on day 3).
