Ebola virus (EBOV) of the filovirus family is an enveloped, single-stranded RNA virus that causes severe hemorrhagic fever in multiple mammals including humans and non-human primates. The recent 2013-2014 outbreak of EBOV in West Africa has resulted in the deaths of nearly 40% of infected patients to date, spreading throughout West Africa and internationally to the United States and Spain via travelers. Therefore, it is essential to understand how this virus invades its hosts and causes disease, to spur approaches to treatment and prevention. Because entry into host cells is the first step in the viral life cycle, this area offers a major target for treatment and prevention. Importantly, ithas been demonstrated that EBOV requires the activity of human Cathepsin B (CatB) for sequential processing of its glycoprotein GP1. The fact that EBOV utilizes this key human protease, CatB, for entry offers an opportunity to develop anti-EBOV inhibitor drugs.
We aim to generate potent, specific inhibitors for CatB via exploration of the prime side ?-helical binding pocket that resuts in inhibition of EBOV infection in live cell assays.

Public Health Relevance

Ebola virus causes severe hemorrhagic fever in multiple mammals including humans and non-human primates. The recent 2013-2014 outbreak of Ebola in West Africa has resulted in the deaths of nearly 40% of infected patients to date, spreading throughout West Africa and internationally to the United States and Spain via travelers. There are currently no FDA approved drugs available for treatment of Ebola infection; thus, the development of therapeutic agents to treat this infection is an essential, unmet medical need. Ebola virus requires a human enzyme for the completion of the life cycle. We aim to generate potent, specific lead inhibitors for this enzyme to develop therapeutics for both Ebola viral infections in people.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Small Business Innovation Research Grants (SBIR) - Phase I (R43)
Project #
1R43AI120926-01
Application #
8980049
Study Section
Special Emphasis Panel (ZRG1)
Program Officer
Davis, Mindy I
Project Start
2015-07-01
Project End
2016-08-31
Budget Start
2015-07-01
Budget End
2016-08-31
Support Year
1
Fiscal Year
2015
Total Cost
Indirect Cost
Name
Phelix Therapeutics, LLC
Department
Type
DUNS #
079291041
City
Philadelphia
State
PA
Country
United States
Zip Code
19104