Aerovance, Inc.

Bayer Pharmaceuticals Corporation

Sydney Morgan Zaremba

Malinda Longphre

David C Boisvert

Armen B Shanafelt

Teresa M Wong

Chimeric polypeptide antagonists that include an interleukin-4 (IL-4) mutein linked to an interleukin-9 (IL-9) mutein are provided, as are polynucleotides encoding the IL-4 and IL-9 chimeric mutein antagonists. Also provided are methods of using the chimeric mutein antagonists and encoding polypeptides to reduce or inhibit the responsiveness of a cell to a cytokine such as IL-4, IL-9 and/or interleukin-13. Methods using the compositions to treat disorders such as pulmonary disorders (e.g., asthma) also are provided.

Interleukin-9 and interleukin-4 chimeric antagonist muteins and methods of using same

This invention relates to IL-9 muteins that inhibit the activity of wild-type IL-9, multimers and Fc-fusion constructs of IL-9 proteins, and an efficient method to purify IL-9 proteins produced by eukaryotic cells. Related formulations, dosages and methods of administration thereof for therapeutic purposes are also provided. More particularly, these IL-9 muteins, compositions, and methods provide a treatment option for individuals afflicted with conditions where inhibiting IL-9 mediated immune responses would be beneficial, such as allergy, asthma, chronic obstructive pulmonary disease (emphysema and chronic bronchitis), pulmonary and gastro-intestinal mucus hyperplasia, inflammation, immunological disorders, leukemia, and lymphoma.

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Alameda, CA, United States of America

Sydney Morgan Zaremba