Preparation and assessment of glutaraldehyde-crosslinked collagen-chitosan hydrogels for adipose tissue engineering.
A portfolio of crosslinked chitosan:collagen blends was prepared, and their microarchitecture and water binding capacity were studied to investigate their application for adipose tissue engineering. Glutaraldehyde (GA) concentration had little effect on scaffold morphology or water binding capacity. However, the processing freezing temperature prior to lyophilization affected both. In vitro cytocompatibility of pre-adipocytes (PAs) was assessed for a candidate collagen:chitosan blend using two assays. Results confirm the viability of PAs on GA-crosslinked collagen:chitosan scaffolds. A rat subcutaneous pocket assay was employed to assess PA-seeded scaffolds in vivo. Animal tests proved that PA-seeded scaffolds were biocompatible, could induce vascularization, and form adipose tissue.
Wu
Xuemei
X
Department of Biomedical Engineering, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA.
Black
Lindsay
L
Santacana-Laffitte
Guido
G
Patrick
Charles W
CW
D020341:Absorbable Implants; D017667:Adipocytes / Q000166:cytology* / Q000378:metabolism; D000273:Adipose Tissue / Q000254:growth & development; D000818:Animals; D002454:Cell Differentiation; D048271:Chitosan; D003094:Collagen; D005976:Glutaral; D008297:Male; D008422:Materials Testing / Q000592:standards; D018919:Neovascularization, Physiologic; D051381:Rats; D011917:Rats, Inbred Lew; D023822:Tissue Engineering
D003094:Collagen; D048271:Chitosan; D005976:Glutaral