University of California

Advanced Cardiovascular Systems, Inc.

City of Hope

Sophia W Liao

Charles David Claude

Zhibin Guan

Connie S Kwok

Jihong Qu

Gene Michal

Yoko Mullen

The disclosure provides for saccharide-peptide based hydrogels, the functionalization of the saccharide-peptide based hydrogels with one or more biological agents, and the encapsulation of one or more biological materials and/or pharmaceutical agents in the hydrogels. The disclosure further provides for the use of the saccharide-peptide based hydrogels in treating a disease or disorder in a subject.

Saccharide-peptide hydrogels

Bioscaffoldings formed of hydrogels that are crosslinked in situ in an infarcted region of the heart (myocardium) by a Michael's addition reaction or by a disulfide bond formed by an oxidative process are described. Each of the bioscaffoldings described includes hyaluronan as one of the hydrogel components and the other component is selected from collagen, collagen-laminin, poly-1-lysine, and fibrin. The bioscaffolding may further include an alginate component. The bioscaffoldings may have biofunctional groups such as angiogenic factors and stem cell homing factors bound to the collagen, collagen-laminin, poly-1-lysine, or fibrinogen hydrogel component. In particular, the biofunctional groups may be PR11, PR39, VEGF, bFGF, a polyarginine/DNA plasmid complex, or a DNA/polyethyleneimine (PEI) complex. Additionally, the hydrogel components may be injected into the infarct region along with stem cells and microspheres containing stem cell homing factors. The bioscaffolding may be formed on a stent or a cardiac medical device.

Hydrogel bioscaffoldings and biomedical device coatings

Growing community of inventors

Irvine, CA, United States of America

Sophia W Liao