Human apyrase represents a highly promising therapy to prevent or reduce ischemia-reperfusion injury during lung transplantation. The enzyme strongly preserves vascular integrity and inhibits platelet activation and aggregation without increasing bleeding risk. Using a protein informatics approach, we have successfully engineered an optimized human apyrase, APT102. With Phase II grant support, We will determine whether APT102 improves lung allograft function without increasing bleeding risk in clinically relevant models of allogeneic orthotopic lung transplantation in rats and dogs. The ultimate goal is to demonstrate whether APT102 has the potential to be a therapy for transplantation-associated and other vascular diseases.

Public Health Relevance

We will determine whether human apyrase improves lung allograft function without increasing bleeding risk in clinically relevant models of allogeneic orthotopic lung transplantation in rats and dogs.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Small Business Innovation Research Grants (SBIR) - Phase II (R44)
Project #
5R44HL087456-03
Application #
7778848
Study Section
Special Emphasis Panel (ZRG1-RES-E (10))
Program Officer
Reynolds, Herbert Y
Project Start
2007-05-01
Project End
2012-06-30
Budget Start
2010-03-01
Budget End
2012-06-30
Support Year
3
Fiscal Year
2010
Total Cost
$439,052
Indirect Cost
Name
Apt Therapeutics, Inc.
Department
Type
DUNS #
192266141
City
Saint Louis
State
MO
Country
United States
Zip Code
63108
Ibrahim, Mohsen; Wang, Xingan; Puyo, Carlos A et al. (2015) Human recombinant apyrase therapy protects against canine pulmonary ischemia-reperfusion injury. J Heart Lung Transplant 34:247-53
Sugimoto, Seiichiro; Lin, Xue; Lai, Jiaming et al. (2009) Apyrase treatment prevents ischemia-reperfusion injury in rat lung isografts. J Thorac Cardiovasc Surg 138:752-9