title: Human chondrocytes and mesenchymal stem cells grown onto engineered scaffold.
abstract: The development of improved methods for treatment of chondral defects using autologous cells in combination with biomaterials leads to a new generation of implantable devices. Their association gives rise to a hybrid construct combining biological and material components that can be specifically committed. The comprehension of cellular and molecular mechanisms of cartilage repair and the use of biomaterials in combination with chondrocytes or mesenchymal stem cells in the treatment of cartilage defects has opened a new era of therapeutical strategies. Recently, their applicability in the treatment of early lesions in osteoarthritis is under investigation. To obtain new information on the behaviour of chondrocytes and mesenchymal stem cells grown on a hyaluronan derivative scaffold (Hyaff-11) already used in cartilage repair, we analysed a series of molecules expressed by these cells by Real-Time RT-PCR and immunohistochemical analyses. The data obtained with this work showed that this biomaterial is able to reduce the expression of some catabolic molecules by human chondrocytes and provide a good environment to support the differentiation of mesenchymal stem cells in chondrogenic sense. These observations confirm Hyaff-11 as a suitable scaffold both for chondrocytes and mesenchymal stem cells for the treatment of articular cartilage defects.
authors.affiliation: Laboratorio di Immunologia e Genetica, Istituto di Ricerca Codivilla Putti, Istituti Ortopedici Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Facchini
authors.forename: Gina
authors.initials: G
authors.lastname: Lisignoli
authors.forename: Sandra
authors.initials: S
authors.lastname: Cristino
authors.forename: Livia
authors.initials: L
authors.lastname: Roseti
authors.forename: Luciana
authors.initials: L
authors.lastname: De Franceschi
authors.forename: Emanuele
authors.initials: E
authors.lastname: Marconi
authors.forename: Brunella
authors.initials: B
authors.lastname: Grigolo
mesh_terms: D000328:Adult; D053674:Aggrecans; D002358:Cartilage, Articular / Q000166:cytology*; D018929:Cell Culture Techniques; D002454:Cell Differentiation / Q000502:physiology; D019902:Chondrocytes / Q000166:cytology* / Q000378:metabolism; D020219:Chondrogenesis / Q000502:physiology; D011508:Chondroitin Sulfate Proteoglycans / Q000096:biosynthesis / Q000235:genetics; D003094:Collagen / Q000096:biosynthesis / Q000235:genetics; D016326:Extracellular Matrix Proteins / Q000096:biosynthesis / Q000235:genetics; D006801:Humans; D006820:Hyaluronic Acid / Q000031:analogs & derivatives; D037181:Lectins, C-Type / Q000096:biosynthesis / Q000235:genetics; D020782:Matrix Metalloproteinases / Q000096:biosynthesis / Q000235:genetics; D059630:Mesenchymal Stem Cells / Q000166:cytology*; D008875:Middle Aged; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods; D023822:Tissue Engineering / Q000379:methods*
chemical_list: D053674:Aggrecans; D011508:Chondroitin Sulfate Proteoglycans; D016326:Extracellular Matrix Proteins; D037181:Lectins, C-Type; C086358:hyaluronic acid benzyl ester; D006820:Hyaluronic Acid; D003094:Collagen; D020782:Matrix Metalloproteinases