Inventors:
Mark T. Gladwin - Pittsburgh PA, US
Daniel B. Kim-Shapiro - Winston-Salem NC, US
Mauro Tiso - Bethesda MD, US
International Classification:
A61K 38/41, A61K 35/14, A61K 35/16, A61K 35/18, A61P 7/06, A61P 7/08, A61P 7/00, A61P 9/10, A61P 17/02, A61P 9/12
US Classification:
424530, 424529, 424531, 424533, 514 134, 514 151
Abstract:
Described herein is the finding that a mutant form of human neuroglobin (H64L) with a stable five-coordinate geometry reduces nitrite to nitric oxide approximately 2000-times faster than the wild type neuroglobin. Five-coordinate neuroglobin is also capable of binding and releasing oxygen. Based on these findings, the use of five-coordinate neuroglobin as a blood substitute is described herein. Particularly provided is a method of replacing blood and/or increasing oxygen delivery to tissues in a subject by administering to the subject a therapeutically effective amount of neuroglobin with a stable five-coordinate geometry. In some cases, five-coordinate neuroglobin is administered in combination with another therapeutic agent or composition, such as a second blood replacement product (for example, a hemoglobin-based oxygen carrier), a blood product (such as red blood cells, serum or plasma) or whole blood.