Inventors:
James Bruns - Imperial PA, US
Marcelo Carattino - Pittsburgh PA, US
Rebecca Hughey - McDonald PA, US
Thomas Kleyman - Pittsburgh PA, US
Shaohu Sheng - Cheswick PA, US
Assignee:
University of Pittsburgh - Pittsburgh PA
International Classification:
A61K 38/17, C07K 14/47
Abstract:
Disclosed herein are peptide cleavage products, generated during natural processing of epithelial sodium channel α- and γ-subunits and their use in inhibiting epithelial sodium channel activity. Also disclosed herein are polypeptide and polypeptide analog derivatives of those agents. These epithelial sodium channel-inhibitory agents may be formulated into a drug product for, without limitation, inhibition of epithelial sodium channel function in a patient's airway, useful in treating, among other diseases or conditions: hypertension, congestive heart failure, cirrhosis, nephrotic syndrome, hypokalemia, cystic fibrosis, chronic pulmonary obstructive diseases, such as chronic bronchitis, asthma and bronchiectasis. A method of testing the activity of an epithelial sodium channel-inhibitory agent also is provided.