Inventors:
Donna J. Osterhout - East Syracuse NY, US
Julie M. Hasenwinkel - Manlius NY, US
Dennis J. Stelzner - Syracuse NY, US
Assignee:
The Research Foundation of State University of New York - Albany NY
Syracuse University - Syracuse NY
International Classification:
A61K 38/20
A61K 9/00
A61K 38/43
A61K 39/395
A61K 38/21
A61P 25/00
A61P 17/02
US Classification:
424400, 424 941, 4241301, 424 852, 424 857, 424 856, 4241721
Abstract:
A formulation including injectable biodegradable nanospheres and/or microspheres as a delivery system for chondroitinase ABC (cABC) or a functional derivative of cABC to treat acute and chronic spinal chord injury in a mammal having the same is provided. The biodegradable nanosphere/microsphere formulation releases cABC or a functional derivative of cABC in a time-released manner at the site of the spinal cord injury. cABC infusion can promote axon regrowth and some behavioral recovery. The nanospheres and/or microspheres provided herein include cABC or a functional derivative of cABC loaded within and/or on a biodegradable polymer matrix. In some embodiments of the present invention, the surface of the biodegradable polymer matrix can be modified to target a specific scar site. In addition to providing a nanosphere formulation that include polymeric incorporated cABC, a method of treating a mammal having a spinal cord injury is also provided.