Abstract:
:Periodontal ligament (PDL) cells play an important role in maintaining the homeostasis of periodontal tissues. However, it is not known how PDL cells contribute to osteoclastogenesis. In this study, we examined the consequences of cell-to-cell interactions between peripheral blood mononuclear cells (PBMCs) and PDL cells during osteoclastogenesis. PBMCs were co-cultured directly or indirectly with PDL cells for two to four weeks. PBMCs that were directly co-cultured with PDL cells formed significantly more resorption pits on dentin slices than did PBMCs that were cultured alone. However, soluble factor(s) produced from PDL cells inhibited the formation of tartrate-resistant acid phosphatase (TRAP)-positive multinucleated cells. Furthermore, PDL cells expressed both receptor activator nuclear factor kappa B ligand (RANKL) and osteoprotegerin (OPG) mRNA. In conclusion, PDL cells support osteoclastogenesis through cell-to-cell contact. PDL cells might regulate osteoclastogenesis by opposing mechanisms--stimulation of resorptive activity by RANKL and inhibition by OPG--thus affecting processes such as periodontitis and orthodontic tooth movement.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Kanzaki H,Chiba M,Shimizu Y,Mitani Hdoi
10.1177/00220345010800030801keywords:
subject
Has Abstractpub_date
2001-03-01 00:00:00pages
887-91issue
3eissn
0022-0345issn
1544-0591journal_volume
80pub_type
杂志文章abstract::In mineralizing hamster molars, the influence of several inhibitors on p-NPP-ase has been demonstrated, and compared with their effect on PPi-ase, known to belong to the same enzyme. Whereas the latter activity is much more physiological, p-NPP is a better substrate to distinguish between the effects of bivalent catio...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345770560102701
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abstract::Periodontitis is a chronic inflammatory disease induced by a biofilm that forms on the tooth surface. Increased periodontal disease is associated with aging. We investigated the effect of aging on challenge by oral pathogens, examining the host response, colonization, and osteoclast numbers in aged versus young mice. ...
journal_title:Journal of dental research
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journal_title:Journal of dental research
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journal_title:Journal of dental research
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journal_title:Journal of dental research
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journal_title:Journal of dental research
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journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345760550032901
更新日期:1976-05-01 00:00:00
abstract::The complexity of the periodontal microbiota resembles that of the gastro-intestinal tract, where infectious diseases are treatable via probiotics. In the oropharyngeal region, probiotic or replacement therapies have shown some benefit in the prevention of dental caries, otitis media, and pharyngitis, but their effect...
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journal_title:Journal of dental research
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journal_title:Journal of dental research
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更新日期:1984-10-01 00:00:00
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journal_title:Journal of dental research
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更新日期:2015-03-01 00:00:00
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journal_title:Journal of dental research
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journal_title:Journal of dental research
pub_type: 杂志文章,评审
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abstract::The effects of substituting gluconate for extracellular Cl, and of treatment with various ion transport blockers, on cytosol pH (pHi) and secretion by the acetylcholine stimulated rat mandibular gland were studied in vitro. Gluconate replacement increased pHi from 7.12 +/- 0.02 to 7.27 +/- 0.04, caused secretory rate ...
journal_title:Journal of dental research
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doi:10.1177/00220345870660022401
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journal_title:Journal of dental research
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journal_title:Journal of dental research
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abstract::The incorporation of polymerizable cationic monomers has been attempted to generate dental resinous materials with antibacterial activity. This study tested the hypothesis that a dental adhesive containing a cationic monomer, methacryloxylethyl cetyl dimethyl ammonium chloride (DMAE-CB), would influence biofilm format...
journal_title:Journal of dental research
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doi:10.1177/0022034509334499
更新日期:2009-04-01 00:00:00
abstract::Van der Woude syndrome (VWS) is an autosomal-dominant oral facial disorder. To find a gene mutation in a Japanese family using fingernail DNA samples, we performed this study. We hypothesized that a gene mutation in IRF6 might be involved in VWS, and that fingernail DNA samples may be valuable for detecting such mutat...
journal_title:Journal of dental research
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abstract::The biochemical function, adenylate energy charge (AEC), correlates with the viable count of S. mutans. AEC may be used to estimate the percent viable fraction of bacteria in dental plaque samples. An interactive computer program designed to process the AEC data is described. ...
journal_title:Journal of dental research
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abstract::The surface enamel of fetal bovine teeth was stained with GBHA to indicate the position of bands of smooth-ended and ruffle-ended ameloblasts relative to the developing enamel. The boundaries of the bands were scored, under a dissecting microscope, and the bulk enamel under each band was collected. The enamel samples ...
journal_title:Journal of dental research
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journal_title:Journal of dental research
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abstract::Sense of coherence (SOC) has been related to oral health behaviors and oral-health-related quality of life (OHRQoL) in observational studies. This cluster-randomized trial aimed to test the effect of an intervention to enhance SOC on OHRQoL in children. Twelve primary schools were randomly allocated to intervention an...
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pub_type: 杂志文章,随机对照试验
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journal_title:Journal of dental research
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abstract::The Global Burden of Disease (GBD) 2010 Study produced comparable estimates of the burden of 291 diseases and injuries in 1990, 2005, and 2010. This article reports on the global burden of untreated caries, severe periodontitis, and severe tooth loss in 2010 and compares those figures with new estimates for 1990. We u...
journal_title:Journal of dental research
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journal_title:Journal of dental research
pub_type: 杂志文章
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journal_title:Journal of dental research
pub_type: 杂志文章
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journal_title:Journal of dental research
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更新日期:2017-04-01 00:00:00