Effects of bilayer gelatin/β-tricalcium phosphate sponges loaded with mesenchymal stem cells, chondrocytes, bone morphogenetic protein-2, and platelet rich plasma on osteochondral defects of the talus in horses.
Osteochondrosis (OC) is a common and clinically important joint disorder in horses. However, repair of the OC region is difficult because of the avascular nature of cartilage. This study aimed to evaluate the efficacy of bilayer gelatin/β-tricalcium phosphate (GT) sponges loaded with mesenchymal stem cells (MSCs), chondrocytes, bone morphogenetic protein-2 (BMP-2), and platelet rich plasma (PRP) for the repair of osteochondral defects of the talus in horses. Full-thickness osteochondral defects were created on both the lateral trochlear ridges of the talus (n = 6). In the test group, a basic GT sponge loaded with MSCs and BMP-2 (MSC/BMP2/GT) was inserted into the lower part of the defect, and an acidic GT sponge loaded with chondrocyte, MSCs, and PRP (Ch/MSC/PRP/GT) was inserted into the upper part of the defect. In the control group, the defect was treated only with bilayer GT sponges. Repair of osteochondral defects was assessed by radiography, quantitative computed tomography (QCT), and macroscopic and histological evaluation. The test group showed significantly higher radiographic, QCT, macroscopic, and histological scores than the control group. This study demonstrated that the bilayer scaffolds consisting of Ch/MSC/PRP/GT for the chondrogenic layer and MSC/BMP2/GT for the osteogenic layer promoted osteochondral regeneration in an equine model. The bilayer scaffolds described here may be useful for treating horses with OC.
Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro-City, Hokkaido 080-8555, Japan.
Jong-Pil
JP
Seo
Takafumi
T
Tanabe
Nao
N
Tsuzuki
Shingo
S
Haneda
Kazutaka
K
Yamada
Hidefumi
H
Furuoka
Yasuhiko
Y
Tabata
Naoki
N
Sasaki
D000818:Animals; D055396:Bone Morphogenetic Protein 2 / Q000627:therapeutic use*; D002130:Calcium Phosphates / Q000627:therapeutic use; D019902:Chondrocytes / Q000637:transplantation*; D005260:Female; D005781:Gelatin Sponge, Absorbable / Q000627:therapeutic use*; D006734:Horse Diseases / Q000473:pathology / Q000628:therapy*; D006736:Horses / Q000601:surgery*; D045164:Mesenchymal Stem Cell Transplantation / Q000379:methods / Q000662:veterinary*; D055034:Osteochondrosis / Q000473:pathology / Q000628:therapy / Q000662:veterinary*; D053657:Platelet-Rich Plasma / Q000502:physiology; D015503:Surgical Sponges / Q000662:veterinary*; D013628:Talus / Q000473:pathology / Q000601:surgery
D055396:Bone Morphogenetic Protein 2; D002130:Calcium Phosphates; C485817:beta-tricalcium phosphate
Bone morphogenetic protein; Horse; Mesenchymal stem cell; Osteochondrosis; Platelet rich plasma; Tissue engineering