The influence of skeletal maturity on allogenic synovial mesenchymal stem cell-based repair of cartilage in a large animal model.
One of the potential factors that may affect the results of mesenchymal stem cell (MSC)-based therapy is the age of donors and recipients. However, there have been no controlled studies to investigate the influence of skeletal maturity on the MSC-based repair of cartilage. The purpose of this study was to compare the repair quality of damaged articular cartilage treated by a scaffold-free three-dimensional tissue-engineered construct (TEC) derived from synovial MSCs between immature and mature pigs. Synovial MSCs were isolated from immature and mature pigs and the proliferation and chondrogenic differentiation capacities were compared. The TEC derived from the synovial MSCs were then implanted into equivalent chondral defects in the medial femoral condyle of both immature and mature pigs, respectively. The implanted defects were morphologically and biomechanically evaluated at 6 months postoperatively. There was no skeletal maturity-dependent difference in proliferation or chondrogenic differentiation capacity of the porcine synovial MSCs. The TEC derived from synovial MSCs promoted the repair of chondral lesion in both immature and mature pigs without the evidence of immune reaction. The repaired tissue by the TEC also exhibited similar viscoelastic properties to normal cartilage regardless of the skeletal maturity. The results of the present study not only suggest the feasibility of allogenic MSC-based cartilage repair over generations but also may validate the use of immature porcine model as clinically relevant to test the feasibility of synovial MSC-based therapies in chondral lesions.
Shimomura
Kazunori
K
Department of Orthopaedics, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan.
Ando
Wataru
W
Tateishi
Kosuke
K
Nansai
Ryosuke
R
Fujie
Hiromichi
H
Hart
David A
DA
Kohda
Hideyuki
H
Kita
Keisuke
K
Kanamoto
Takashi
T
Mae
Tatsuo
T
Nakata
Ken
K
Shino
Konsei
K
Yoshikawa
Hideki
H
Nakamura
Norimasa
N
D000818:Animals; D001696:Biomechanical Phenomena; D001842:Bone and Bones / Q000502:physiology*; D002356:Cartilage / Q000473:pathology*; D002452:Cell Count; D002454:Cell Differentiation; D049109:Cell Proliferation; D020219:Chondrogenesis / Q000235:genetics; D024043:Collagen Type II / Q000235:genetics / Q000378:metabolism; D005786:Gene Expression Regulation; D006801:Humans; D008297:Male; D045164:Mesenchymal Stem Cell Transplantation; D059630:Mesenchymal Stem Cells / Q000166:cytology* / Q000378:metabolism; D023421:Models, Animal; D013194:Staining and Labeling; D034421:Sus scrofa; D013583:Synovial Membrane / Q000166:cytology*; D054457:Tissue Scaffolds; D014184:Transplantation, Homologous; D014945:Wound Healing
D024043:Collagen Type II