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Mitogenic and chemotactic responses of human periodontal ligament cells to the different isoforms of platelet-derived growth factor. 1994

L A Boyan, and G Bhargava, and F Nishimura, and R Orman, and R Price, and V P Terranova
Laboratory of Tumor Biology and Connective Tissue Research, Columbia University, New York, New York 10032.

A major focus of studies that center on regeneration of the periodontium is to determine the efficacy of the use of polypeptide growth factors. Platelet-derived growth factor has been reported to be a possible agent for clinical use. PDGF has various isoforms. Therefore, we decided to study the mitogenic and chemotactic responses of human periodontal ligament (PDL) cells to recombinant human PDGF-AB, AA, and BB. Addition of each isoform of PDGF to in vitro mitogenesis assays induced PDL cell proliferation in a dose-dependent manner. The maximum mitogenic effect was evident at the concentration of 100 ng/mL. In these assays, PDGF-BB was found to be the most potent mitogen. PDGF-AB elicited an intermediate response, and PDGF-AA was the least effective. The results of chemotaxis assays closely parallel those of the mitogenesis assays. PDGF-BB exhibited the most potent chemotactic effect. The maximal effect was observed at 10 ng/mL. The findings of these experiments indicate that PDGF-BB is more effective than the other isoforms in promoting mitogenesis and chemotaxis of PDL cells in vitro, and may therefore be a suitable ethical pharmaceutical for use in periodontal regeneration procedures.

UI MeSH Term Description Entries
D007536 Isomerism The phenomenon whereby certain chemical compounds have structures that are different although the compounds possess the same elemental composition. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Isomerisms
D008938 Mitosis A type of CELL NUCLEUS division by means of which the two daughter nuclei normally receive identical complements of the number of CHROMOSOMES of the somatic cells of the species. M Phase, Mitotic,Mitotic M Phase,M Phases, Mitotic,Mitoses,Mitotic M Phases,Phase, Mitotic M,Phases, Mitotic M
D010513 Periodontal Ligament The fibrous CONNECTIVE TISSUE surrounding the TOOTH ROOT, separating it from and attaching it to the alveolar bone (ALVEOLAR PROCESS). Alveolodental Ligament,Alveolodental Membrane,Gomphosis,Alveolodental Ligaments,Alveolodental Membranes,Gomphoses,Ligament, Alveolodental,Ligament, Periodontal,Membrane, Alveolodental,Periodontal Ligaments
D010982 Platelet-Derived Growth Factor Mitogenic peptide growth hormone carried in the alpha-granules of platelets. It is released when platelets adhere to traumatized tissues. Connective tissue cells near the traumatized region respond by initiating the process of replication. Platelet Derived Growth Factor,Factor, Platelet-Derived Growth,Growth Factor, Platelet-Derived
D011994 Recombinant Proteins Proteins prepared by recombinant DNA technology. Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
D012038 Regeneration The physiological renewal, repair, or replacement of tissue. Endogenous Regeneration,Regeneration, Endogenous,Regenerations
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D002633 Chemotaxis The movement of cells or organisms toward or away from a substance in response to its concentration gradient. Haptotaxis
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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