Indiana University

The United States Government As Represented by the Department of Veterans Affairs

Irina Petrache

Robert Voswinckel

Matthias Alexander Clauss

The present invention provides methods for diagnosing a patient with emphysema, COPD of lung injury caused by tobacco use by detecting the levels of EMAP II in a sample. Disclosed herein are the hypervariable regions for a rat monoclonal antibody that binds to a form of EMAP II. This disclosure also includes a polypeptide sequence included in EMAP II that is the target for the binding of the antibody to its target protein. This epitope serves as the basis for a humanized antibody that can be used to treat patients that suffer from pathologies that exhibit elevated levels of EMAP II expression.

Monoclonal antibody and antigens for diagnosing and treating lung disease and injury

The present invention provides methods for diagnosing a patient with emphysema or COPD by detecting the levels of EMAP II in a sample. Alternatively, methods are provided for determining the susceptibility of a patient to develop emphysema or COPD by detecting the levels of EMAP II in a sample. The levels of EMAP II may be determined by immunoassay techniques. The present invention also provides methods for treating patients with emphysema or COPD by administering a therapeutically effective amount of an EMAP II neutralizing compound. The compound may be an antibody, siRNA, antisense RNA or an antagonist of CXCR3.

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Indianapolis, IN, United States of America

Irina Petrache