KIR-binding agents and methods of use thereof

US9018366B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9018366-B2
Application numberUS-201313745081-A
CountryUS
Kind codeB2
Filing dateJan 18, 2013
Priority dateJan 6, 2005
Publication dateApr 28, 2015
Grant dateApr 28, 2015

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Abstract

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The present invention relates to agents and methods that are capable of augmenting NK-mediated killing of target cells by reducing inhibitory KIR signalling without reducing the binding of KIR to HLA-C. As described herein, transduction of negative signaling via KIR, upon binding of KIR to its HLA class I ligand, can involve a ligand-binding induced, conformational reorientation of the KIR molecules allowing interactions to form between adjacent KIRs in specific domains, leading to accelerated clustering. Methods and agents such as monoclonal antibodies for reducing KIR-mediated inhibition of NK cell cytotoxicity without reducing or blocking HLA-binding by, e.g., reducing or blocking dimerization of KIR, are provided.

First claim

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What is claimed is: 1. An isolated nucleic acid or isolated nucleic acids that separately or in combination encode a variable light (VL) chain and a variable heavy (VH) chain of a monoclonal antibody or antigen binding fragment thereof that binds to an extracellular portion of an inhibitory human Killer IgG-like Receptor 2DL polypeptide KIR2DL1, KIR2DL2 and/or KIR2DL3, wherein the monoclonal antibody or antigen binding fragment thereof: (i) reduces KIR2DL1, KIR2DL2 and/or KIR2DL3-m…

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What does patent US9018366B2 cover?
The present invention relates to agents and methods that are capable of augmenting NK-mediated killing of target cells by reducing inhibitory KIR signalling without reducing the binding of KIR to HLA-C. As described herein, transduction of negative signaling via KIR, upon binding of KIR to its HLA class I ligand, can involve a ligand-binding induced, conformational reorientation of the KIR mole…
Who is the assignee on this patent?
Novo Nordisk As —Novo Allé, Innate Pharma Sas, Innate Pharma Sas, and 1 more
What technology area does this patent fall under?
Primary CPC classification C07K16/2803. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Apr 28 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).