title: Effects of growth factors and glucosamine on porcine mandibular condylar cartilage cells and hyaline cartilage cells for tissue engineering applications.
abstract: Temporomandibular joint (TMJ) condylar cartilage is a distinct cartilage that has both fibrocartilaginous and hyaline-like character, with a thin proliferative zone that separates the fibrocartilaginous fibrous zone at the surface from the hyaline-like mature and hypertrophic zones below. In this study, we compared the effects of insulin-like growth factor-I (IGF-I), basic fibroblast growth factor (bFGF), transforming growth factor beta1 (TGF-beta1), and glucosamine sulphate on porcine TMJ condylar cartilage and ankle cartilage cells in monolayer culture. In general, TMJ condylar cartilage cells proliferated faster than ankle cartilage cells, while ankle cells produced significantly greater amounts of glycosaminoglycans (GAGs) and collagen than TMJ condylar cartilage cells. IGF-I and bFGF were potent stimulators of TMJ cell proliferation, while no signals statistically outperformed controls for ankle cell proliferation. IGF-I was the most effective signal for GAG production with ankle cells, and the most potent upregulator of collagen synthesis for both cell types. Glucosamine sulphate promoted cell proliferation and biosynthesis at specific concentrations and outperformed growth factors in certain instances. In conclusion, hyaline cartilage cells had lower cell numbers and superior biosynthesis compared to TMJ condylar cartilage cells, and we have found IGF-I at 100 ng/mL and glucosamine sulphate at 100 microg/mL to be the most effective signals for these cells under the prescribed conditions.
authors.affiliation: Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, KS 66045, United States.
authors.forename: Limin
authors.initials: L
authors.lastname: Wang
authors.forename: Michael S
authors.initials: MS
authors.lastname: Detamore
mesh_terms: D000818:Animals; D002356:Cartilage / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D049109:Cell Proliferation; D005260:Female; D016222:Fibroblast Growth Factor 2 / Q000494:pharmacology; D005944:Glucosamine / Q000494:pharmacology; D051457:Hyaline Cartilage / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D007334:Insulin-Like Growth Factor I / Q000494:pharmacology; D036341:Intercellular Signaling Peptides and Proteins / Q000494:pharmacology*; D008335:Mandibular Condyle / Q000166:cytology; D013552:Swine; D013704:Temporomandibular Joint; D023822:Tissue Engineering / Q000379:methods; D016212:Transforming Growth Factor beta / Q000096:biosynthesis*; D053773:Transforming Growth Factor beta1 / Q000494:pharmacology
chemical_list: D036341:Intercellular Signaling Peptides and Proteins; D016212:Transforming Growth Factor beta; D053773:Transforming Growth Factor beta1; D016222:Fibroblast Growth Factor 2; D007334:Insulin-Like Growth Factor I; D005944:Glucosamine