Quantification of cells expressing mesenchymal stem cell markers in healthy and osteoarthritic synovial membranes
Use este enlace para citar
http://hdl.handle.net/2183/16664Coleccións
- GI-TCMR - Artigos [130]
- INIBIC-TCMR - Artigos [102]
- INIBIC- REUMA - Artigos [184]
Metadatos
Mostrar o rexistro completo do ítemTítulo
Quantification of cells expressing mesenchymal stem cell markers in healthy and osteoarthritic synovial membranesAutor(es)
Data
2010-11-15Cita bibliográfica
Hermida-Gómez T, Fuentes-Boquete I, Gimeno-Longas MJ, Muiños-López E, Díaz-Prado S, de Toro FJ, et al. Quantification of cells expressing mesenchymal stem cell markers in healthy and osteoarthritic synovial membranes. J Rheumatol. 2010;38(2):339-349.
Resumo
[Abstract] Objective. To quantify cells expressing mesenchymal stem cell (MSC) markers in synovial mem- branes from human osteoarthritic (OA) and healthy joints.
Methods. Synovial membranes from OA and healthy joints were digested with collagenase and the isolated cells were cultured. Synovial membrane-derived cells were phenotypically characterized for differentiation experiments using flow cytometry to detect the expression of mesenchymal markers (CD29, CD44, CD73, CD90, CD105, CD117, CD166, and STRO-1) and hematopoietic markers (CD34 and CD45). Chondrogenesis was assessed by staining for proteoglycans and collagen type II, adipogenesis by using a stain for lipids, and osteogenesis by detecting calcium deposits. Coexpression of CD44, CD73, CD90, and CD105 was determined using immunofluorescence. Results. Cells expressing MSC markers were diffusely distributed in OA synovial membranes; in healthy synovial membrane these cells were localized in the subintimal zone. More numerous MSC markers in OA synovial membranes were observed in cells also expressing the CD90 antigen. FACS analysis showed that more than 90% of OA synovial membrane-derived cells were positive for CD44, CD73, and CD90, and negative for CD34 and CD45. OA synovial membrane-derived cells were also positive for CD29 (85.23%), CD117 (72.35%), CD105 (45.5%), and STRO-1 (49.46%). Micropellet analyses showed that the culture of cells with transforming growth factor-ß3 stimulated proteoglycan and collagen type II synthesis.
Conclusion. Synovial membranes from patients with OA contain more cells positive for CD44, CD90, and CD105 antigens than those from joints with undamaged cartilage.
Palabras chave
Mesenchymal stem cell
Cartilage
Osteoarthritis
Synovium
Cartilage
Osteoarthritis
Synovium
Versión do editor
Dereitos
This is the pre-copy-editing, author-produced PDF of an article accepted for publication in The Journal of Rheumatology following peer review. The definitive publisher-authenticated version is avaliable online at The Journal of Rheumatology web page.