Synergistic Action of Transforming Growth Factor-β and Insulin-like Growth Factor-I Induces Expression of Type II Collagen and Aggrecan Genes in Adult Human Articular Chondrocytes

Yaeger, Peter C.; Masi, Tamhida; Ortiz, J L; Binette, François; Tubo, Ross; McPherson, John M.

doi:10.1006/excr.1997.3781

Cited by 261 publications

(206 citation statements)

References 33 publications

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“…For example, synergistic effects on chondrogenesis have been reported for TGF-b1 when co-administered with IGF-1. 35 Steinert et al 36 recently used an aggregate culture system to study effects of co-expression of TGF-b1, IGF-1 and BMP-2 on MSCs. Their results showed larger aggregates, higher levels of GAG synthesis and greater expression of cartilage specific marker genes by adding different combinations of growth factors.…”

Section: Discussionmentioning

confidence: 99%

Articular cartilage repair by genetically modified bone marrow aspirate in sheep

et al. 2010

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Section: Discussionmentioning

confidence: 99%

Articular cartilage repair by genetically modified bone marrow aspirate in sheep

et al. 2010

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“…IGF-1 is expressed in the condensing region of the developing cartilage as well as in mature cartilage and synovial fluid. IGF-1 also enhances matrix synthesis in vitro and in vivo [13][14][15]. Furthermore, in vitro administration of exogenous IGF-1 blocks interleukin-1 induced degradation pathways of proteoglycans in chondrocytes [16,17].…”

mentioning

confidence: 99%

Cartilage tissue engineering for degenerative joint disease☆

Nešić

Whiteside

Brittberg

et al. 2006

Advanced Drug Delivery Reviews

210

156

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Pain in the joint is often due to cartilage degeneration and represents a serious medical problem affecting people of all ages. Although many, mostly surgical techniques, are currently employed to treat cartilage lesions, none has given satisfactory results in the long term. Recent advances in biology and material science have brought tissue engineering to the forefront of new cartilage repair techniques. The combination of autologous cells, specifically designed scaffolds, bioreactors, mechanical stimulations and growth factors together with the knowledge that underlies the principles of cell biology offers promising avenues for cartilage tissue regeneration. The present review explores basic biology mechanisms for cartilage reconstruction and summarizes the advances in the tissue engineering approaches. Furthermore, the limits of the new methods and their potential application in the osteoarthritic conditions are discussed.

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“…Studies that have examined the plasticity of the chondrocyte phenotype from many different species have consistently shown that culture of these cells in monolayers on plastic substrata for prolonged periods or upon repeated passages leads to the loss of their spherical shape and to the acquisition of an elongated fibroblast-like morphology (7,(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28). These morphologic alterations are accompanied by profound biochemical changes, including loss of the cartilage-specific phenotype, as evidenced by an arrest of the synthesis of the cartilage-specific collagens (types II, IX, and XI) and proteoglycans (aggrecan), initiation of synthesis of the interstitial collagens (types I, III, and V), and increase in the synthesis of fibroblasttype proteoglycans (versican) at the expense of aggrecan (7,17,(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29).…”

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confidence: 99%

Assessment of the gene expression profile of differentiated and dedifferentiated human fetal chondrocytes by microarray analysis

Stokes¹,

Liu²,

Coimbra³

et al. 2002

Arthritis & Rheumatism

152

109

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Objective. To study the changes in patterns of gene expression exhibited by human chondrocytes as they dedifferentiate into fibroblastic cells in culture in order to better understand the mechanisms that control this process and its relationship to the phenotypic changes that occur in chondrocytes during the development of osteoarthritis (OA).Methods. Human fetal epiphyseal chondrocytes (HFCs) were cultured either on poly-(2-hydroxyethyl methacrylate)-coated plates (differentiated HFC cultures) or in plastic tissue culture flasks as monolayers (dedifferentiated HFC cultures). Following 11 days of culture under either condition, poly(A؉) RNA was isolated from the two cell populations and subjected to a gene expression analysis using a microarray containing ϳ5,000 known human genes and ϳ3,000 expressed sequence tags (ESTs).Results. A >2-fold difference in the expression of 62 known genes and 6 ESTs was observed between the two cell types. The differences in expression of several of the genes detected by the microarray hybridization were confirmed by Northern analyses. Two transcription factor genes, TWIST and HIF-1␣, and a cellular adhesion protein gene, cadherin 11, were markedly regulated in response to differentiation and dedifferentiation. Expression of these genes was also detected in adult normal and OA cartilage and chondrocytes. Analysis of the gene expression profile of HFCs revealed a complex pattern of gene expression, including many genes not yet reported to be expressed by chondrocytes.Conclusion. Chondrocytes in monolayer become dedifferentiated, acquiring a fibroblast-like appearance and changing their pattern of gene expression from one of expression of chondrocyte-specific genes to one that resembles a fibroblastic or chondroprogenitor-like pattern. Changes in gene expression associated with the process of dedifferentiation of HFCs in vitro were observed in a wide variety of genes, including genes encoding extracellular matrix proteins, transcription factors, and growth factors. At least 3 of the genes that were regulated in response to dedifferentiation were also found to be expressed in adult normal and OA articular cartilage and chondrocytes.

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Synergistic Action of Transforming Growth Factor-β and Insulin-like Growth Factor-I Induces Expression of Type II Collagen and Aggrecan Genes in Adult Human Articular Chondrocytes

Cited by 261 publications

References 33 publications

Articular cartilage repair by genetically modified bone marrow aspirate in sheep

Articular cartilage repair by genetically modified bone marrow aspirate in sheep

Cartilage tissue engineering for degenerative joint disease☆

Assessment of the gene expression profile of differentiated and dedifferentiated human fetal chondrocytes by microarray analysis

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