Amphiphilic Peptides for Thoracic Air Leakage Occlusion
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United States of America Patent
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Nov 6, 2014
app pub date -
Aug 31, 2012
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Sep 2, 2011
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Abstract
Provided are compounds and methods useful for sealing air leaks in the thoracic cavity. Compounds and compositions of the invention comprise certain amphiphilic peptides, 8-200 amino acid residues long, that self-assemble spontaneously to form a gel in the presence of physiological pH and/or in the presence of a cation. In one embodiment, the peptide comprises a repeated sequence arginine-alanine-aspartic acid-alanine (RADA). Methods of the invention include a method of occluding a pulmonary air leak in a subject, comprising applying a compound of the invention to the site of a pulmonary air leak. The compounds and methods of the invention can be combined with other agents useful to treat cancer, inflammation, or infection.
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