Methods and compositions useful for targeting activated...

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G01N 33/68 (2006.01) C07K 14/705 (2006.01) C07K 14/78 (2006.01) C07K 16/28 (2006.01)

Patent

CA 2351452

The present invention provides ligands which can selectively bind to activated .alpha.v.beta.3 integrin. A novel monovalent ligand-mimetic (WOW-1 Fab) which includes a single .alpha.v integrin-binding domain from multivalent adenovirus penton base is provided. Further, the present invention describes particular compositions of activated .alpha.v.beta.3-specific ligands, such as an antibody which immunoreacts preferentially with activated .alpha.v.beta.3 integrin. The invention also describes methods using an activated .alpha.v.beta.3-specific ligand for diagnostic detection of activated .alpha.v.beta.3 integrin in tissues and for the targeted delivery of therapeutic agents to tissues containing activated .alpha.v.beta.3 integrin.

La présente invention concerne des ligands pouvant se fixer sélectivement sur intégrine .alpha.¿v?.beta.¿3? activée. L'invention fait intervenir un nouveau mimétique ligand monovalent (WOW-1 Fab) qui renferme un domaine unique liant l'intégrine .alpha.¿v?.beta.¿3? tirée dune base de penton d'adénovirus multivalent. De plus, cette invention concerne des compositionsarticulières de ligands spécifiques de .alpha.¿v?.beta.¿3? activée, telles qu'un anticorps qui entraîne une réaction immunologique de préférence avec l'intégrine .alpha.¿v?.beta.¿3? activée. Elle rend également compte de méthodes qui font appel à un ligand spécifique de .alpha.¿v?.beta.¿3? activée pour la détection aux fins de diagnostic de l'intégrine .alpha.¿v?.beta.¿3? activée dans les tissus et pour l'administration ciblée d'agents thérapeutiques à des tissus renfermant de l'intégrine .alpha.¿v?.beta.¿3? activée.

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