.alpha..nu..beta.3 integrin-binding polypeptide monobodies...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/62 (2006.01) A61K 38/39 (2006.01) A61K 47/48 (2006.01) A61K 48/00 (2006.01) A61K 49/06 (2006.01) C07K 14/78 (2006.01) C07K 16/00 (2006.01) C07K 16/28 (2006.01) C07K 17/10 (2006.01) C07K 17/14 (2006.01) C07K 19/00 (2006.01) C12N 15/12 (2006.01)

Patent

CA 2443332

The present invention relates to a polypeptide monobody which includes a modified acid sequence and renders the polypeptide monobody able to bind selectively to .alpha..nu..beta.3 integrin. Fusion proteins and conjugates which include the polypeptide monobody, as well as compositions containing the polypeptide monobody, fusion proteins, or conjugates are also disclosed. Uses thereof include: treating or preventing an .alpha..nu..beta.3 integrin- mediated disease or disorder, inhibiting .alpha..nu..beta.3 integrin activity, treating a cancerous or precancerous condition, imaging tissues using positron emission tomography or magnetic resonance imaging, assessing the metastatic characteristics of a tumor, and delivering DNA to a cell.

L'invention concerne un monocorps de polypeptide qui comprend une séquence d'acides aminés modifiée, et permet de rendre ce monocorps de polypeptide capable de se lier de manière sélective à l'intégrine .alpha..nu..beta.3. L'invention concerne également des protéines hybrides et des conjugués comprenant ce monocorps de polypeptide, ainsi que des compositions contenant ce monocorps de polypeptide, ces protéines hybrides ou ces conjugués. L'utilisation de ces monocorps comprend: le traitement ou la prévention d'une maladie ou d'un trouble à médiation assurée par l'intégrine .alpha..nu..beta.3, l'inhibition de l'activité de l'intégrine .alpha..nu..beta.3, le traitement d'états cancéreux ou précancéreux, la mise en image de tissus à l'aide de la tomographie par émission de positons ou de l'imagerie par résonance magnétique, l'estimation des caractéristiques métastatiques d'une tumeur, et l'apport d'ADN à une cellule.

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