Rnai-based therapeutics for allergic rhinitis and asthma

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/11 (2006.01) A61K 31/713 (2006.01) A61P 11/00 (2006.01) A61P 11/06 (2006.01)

Patent

CA 2558262

The present invention provides compositions comprising one or more RNAi agents (e.g., siRNAs, shRNAs, or RNAi vectors) for the treatment of conditions and diseases mediated by (e.g., featuring IgE-mediated hypersensitivity), as well as systems for identifying RNAi agents effective for this purpose. The compositions are suitable for the treatment of allergic rhinitis and/or asthma. In certain embodiments of the invention the RNAi agent is targeted to a transcript that encodes a protein selected from the group consisisting of the FC.epsilon.RI.alpha. chain, the FC.epsilon.RI.beta. chain, c-Kit, Lyn, Syk, ICOS, OX40L, CD40, CD80, CD86, RelA, RelB, 4-1BB ligand, TLR1, TLR2, TLR3,TLR4, TLR5, TLR6, TLR7, TLR8, TLR9, CD83, SLAM, common .gamma. chain, and COX-2. In addition, the invention provides RNAi agent/delivery agent compositions and methods of use. In certain embodiments of the invention compositions comprising an RNAi agent are delivered by the respiratory route.

L'invention concerne des compositions comprenant un ou plusieurs agents à base d'ARNi (par exemple des vecteurs de siARN, de shARN ou d'ARNi) pour le traitement d'états et de maladies associés à une hypersensibilité médiée par IgE par exemple. L'invention concerne également des systèmes pour identifier des agents à base d'ARNi qui sont efficaces dans ce domaine. Lesdites compositions sont appropriées pour le traitement de la rhinite allergique et/ou l'asthme. Dans certains modes de réalisation de l'invention, l'agent à base d'ARNi est ciblé sur un produit de transcription qui code une protéine sélectionnée dans le groupe comprenant la chaîne FCeRI?, la chaîne FCeRI?, c-Kit, Lyn, Syk, ICOS, OX40L, CD40, CD80, CD86, RelA, RelB, le ligand 4-1BB, TLR1, TLR2, TLR3,TLR4, TLR5, TLR6, TLR7, TLR8, TLR9, CD83, SLAM, la chaîne ? commune, et COX-2. En outre, l'invention concerne des compositions contenant un agent d'administration/agent à base d'ARNi, ainsi que des procédés d'utilisation de ces compositions. Dans certains modes de réalisation de l'invention, ces compositions comprenant un agent à base d'ARNi sont administrées par voie respiratoire.

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