Antagonists of interleukin-15

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/24 (2006.01) A61K 38/20 (2006.01) A61K 39/395 (2006.01) A61K 47/48 (2006.01) C07K 14/54 (2006.01) C07K 16/24 (2006.01) C07K 17/02 (2006.01) C12N 15/63 (2006.01) C12P 21/02 (2006.01)

Patent

CA 2210491

Antagonists of mammalian interleukin-15 ("IL-15") are disclosed and include muteins of IL-15 and modified IL-15 molecules that are each capable of binding to the IL-15R.alpha.-subunit and that are incapable of transducing a signal through either the .beta.- or .gamma.- subunits of the IL-15 receptor complex. Also included are monoclonal antibodies against IL- 15 that prevent IL-15 from effecting signal transduction through either the .beta.- or .gamma.-subunits of the IL-15 receptor complex. Methods of treating various disease states are disclosed, including treating allograft rejection and graft-versus-host disease.

Cette invention se rapporte à des antagonistes de l'interleukine-15 (IL-15) de mammifères, qui contiennent des mutéines d'IL-15 et des molécules d'IL-15 modifiées, qui sont les unes et les autres capables de se lier à la sous-unité R alpha de l'IL-15 et incapables d'induire la transduction d'un signal tant par la sous-unité beta que par la sous-unité gamma du complexe récepteur d'IL-15. Cette invention se rapporte également à des anticorps monoclonaux contre l'IL-15, qui empêchent l'IL-15 d'induire une transduction de signal tant par la sous-unité beta que par la sous-unité gamma du complexe récepteur d'IL-15. Cette invention décrit également des procédés pour traiter divers états pathologiques, tels que les rejets d'allogreffes et les réactions du greffon contre l'hôte.

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