Rapid attachment of adipose stromal cells on resorbable polymeric scaffolds facilitates the one-step surgical procedure for cartilage and bone tissue engineering purposes.
The stromal vascular fraction (SVF) of adipose tissue provides an abundant source of mesenchymal stem cells. For clinical application, it would be beneficial to establish treatments in which SVF is obtained, seeded onto a scaffold, and returned into the patient within a single surgical procedure. In this study, we evaluated the suitability of both a macroporous poly(L-lactide-co-caprolactone) and a porous collagen type I/III scaffold for this purpose. Surprisingly, cell attachment was rapid (∼10 min) and sequestered the majority of adipose stem cells, as deduced from colony-forming unit assays. Proliferation occurred in both polymeric scaffolds. Upon chondrogenic induction, up-regulation of chondrogenic genes, production of glycosaminoglycans, and accumulation of collagen type II was observed, indicating differentiation of scaffold-attached SVF cells along the chondrogenic lineage. Osteogenic differentiation was achieved in both scaffold types, as visualized by up-regulation of osteogenic genes, increase of alkaline phosphatase production over time, and accumulation of bone sialoprotein and osteonectin. In conclusion, this study identifies both poly(L-lactide-co-caprolactone) and collagen type I/III as promising scaffold materials for rapid attachment of adipose stem cell-like (stromal) cells, enhancing the development of one-step surgical concepts for cartilage and bone tissue engineering.
Department of Plastic, Reconstructive and Hand Surgery, VU University Medical Center, Amsterdam, The Netherlands.
Wouter J
WJ
Jurgens
Robert Jan
RJ
Kroeze
Ruud A
RA
Bank
Marco J P F
MJ
Ritt
Marco N
MN
Helder
D000273:Adipose Tissue / Q000166:cytology*; D000328:Adult; D001672:Biocompatible Materials; D002454:Cell Differentiation; D049109:Cell Proliferation; D020219:Chondrogenesis; D024042:Collagen Type I; D024061:Collagen Type III; D006801:Humans; D059630:Mesenchymal Stem Cells; D008875:Middle Aged; D019637:Orthopedic Procedures; D010012:Osteogenesis; D011091:Polyesters; D013997:Time Factors; D023822:Tissue Engineering / Q000379:methods*; D054457:Tissue Scaffolds
D001672:Biocompatible Materials; D024042:Collagen Type I; D024061:Collagen Type III; D011091:Polyesters; C062968:lactide-caprolactone copolymer