title: Differentiation of adipose-derived stromal vascular fraction culture cells into chondrocytes using the method of cell sorting with a mesenchymal stem cell marker.
abstract: The incidence of arthritic diseases is rapidly increasing in most advanced countries. Articular cartilage, which is the most important tissue in the joint, consists of chondrocytes and abundant extracellular matrix, including aggrecan, and shows poor self-repair. We studied the potential of stem cells in mouse subcutaneous adipose tissue as a source of cells to regenerate cartilage tissue. Analysis of adipose-derived stromal vascular fraction culture cells (ADSVFs) using mesenchymal stem cell markers showed that CD90-positive cells accounted for 93.8%, CD105-positive cells for 68.5%, and p75 neurotrophin receptor (p75NTR, CD271)-positive cells for 36.1%. These results indicate that cells positive for mesenchymal stem cell markers are present in ADSVFs. The CD105-positive or -negative cells were isolated from ADSVFs by magnetic cell separation (MACS), and the efficiency of differentiation into chondrocytes was compared with using three methods of pellet method, gel-coating method, and gel-embedding sheet method. Using the CD105-positive cells and the gel-embedding sheet method, aggrecan mRNA was detected about three times higher than pellet and gel-coating methods. The above data suggest that ADSVFs could be differentiated into chondrocyte-like cells in the gel-embedding sheet method and could be useful in regenerative medicine to treat cartilage defects or cartilage degenerative disease. The use of cells sorted by mesenchymal stem cell markers from adipose tissue would gain position in the repair of cartilage tissue.
authors.affiliation: Department of Orthopaedic Surgery, School of Medicine, Fujita Health University, Aichi, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Ishimura
authors.forename: Naoki
authors.initials: N
authors.lastname: Yamamoto
authors.forename: Kaori
authors.initials: K
authors.lastname: Tajima
authors.forename: Ayumi
authors.initials: A
authors.lastname: Ohno
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Yamamoto
authors.forename: Osuke
authors.initials: O
authors.lastname: Washimi
authors.forename: Harumoto
authors.initials: H
authors.lastname: Yamada
mesh_terms: D000273:Adipose Tissue / Q000166:cytology*; D053674:Aggrecans / Q000378:metabolism; D000818:Animals; D015703:Antigens, CD / Q000378:metabolism; D015415:Biomarkers / Q000378:metabolism; D001808:Blood Vessels / Q000166:cytology*; D002452:Cell Count; D002454:Cell Differentiation; D002478:Cells, Cultured; D019902:Chondrocytes / Q000166:cytology*; D005434:Flow Cytometry / Q000379:methods*; D008297:Male; D059630:Mesenchymal Stem Cells / Q000378:metabolism*; D051379:Mice; D008813:Mice, Inbred ICR; D017154:Stromal Cells / Q000166:cytology*; D040521:Subcutaneous Tissue
chemical_list: D053674:Aggrecans; D015703:Antigens, CD; D015415:Biomarkers