Porphyromonas gingivalis LPS stimulation downregulates DNMT1, DNMT3a, and JMJD3 gene expression levels in human HaCaT keratinocytes
dc.contributor.author | de Camargo Pereira, Gláucia | |
dc.contributor.author | Guimarães, Gustavo Narvaes | |
dc.contributor.author | Planello, Aline Cristiane | |
dc.contributor.author | Santamaria, Mauro Pedrine [UNESP] | |
dc.contributor.author | de Souza, Ana Paula | |
dc.contributor.author | Line, Sergio Roberto | |
dc.contributor.author | Marques, Marcelo Rocha | |
dc.contributor.institution | Universidade Estadual de Campinas (UNICAMP) | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-27T11:27:27Z | |
dc.date.available | 2014-05-27T11:27:27Z | |
dc.date.issued | 2013-01-01 | |
dc.description.abstract | Objective: The role of epigenetic regulation in inflammatory diseases such as periodontitis is poorly known. The aim of this study was to assess whether Porphyromonas gingivalis lipopolysaccharide (LPS) can modulate gene expression levels of the some enzymes that promote epigenetic events in cultures of the human keratinocytes and gingival fibroblasts. In addition, the same enzymes were evaluated in gingival samples from healthy and periodontitis-affected individuals. Materials and methods: Primary gingival fibroblast and keratinocyte (HaCaT) cultures were treated with medium containing P. gingivalis LPS or P. gingivalis LPS vehicle for 24 h. After this period, cell viability was assessed by MTT test and total RNA extracted to evaluate gene expression levels of the following enzymes by qRT-PCR: DNA methyltransferase 1 (DNMT1), DNA methyltransferase 3a (DNMT3a), histone demethylases Jumonji domain containing 3 (JMJD3) and ubiquitously transcribed tetratricopeptide repeat, X chromosome (UTX). To evaluate gene expression in healthy and periodontitis-affected individuals, total RNA was extracted from biopsies of gingival tissue from healthy and periodontitis sites, and gene expression of DNMT1, DNAMT3a, JMJD3, and UTX was evaluated by qRT-PCR. Results: No significant differences were found in the gene expression analysis between healthy and periodontitis-affected gingival samples. The results showed that LPS downregulated DNMT1 (p < 0. 05), DNMT3a (p < 0. 05), and JMJD3 (p < 0. 01) gene expression in HaCaT cells, but no modulation was observed in gingival fibroblasts. Conclusion: P. gingivalis LPS exposure to human HaCaT keratinocytes downregulates gene expression of the enzymes that promote epigenetic events. Clinical relevance: The advance knowledge about epigenetic modifications caused by periodontopathogens may to possibly led to the development of new periodontal therapies. © 2012 Springer-Verlag. | en |
dc.description.affiliation | Department of Morphology Division of Histology, Piracicaba Dental School State University of Campinas, Av. Limeira 901, Caixa Postal 052, CEP 13414-903 Piracicaba, São Paulo | |
dc.description.affiliation | Department of Diagnostic and Surgery University Estadual Paulista (UNESP), São José dos Campos, São Paulo | |
dc.description.affiliationUnesp | Department of Diagnostic and Surgery University Estadual Paulista (UNESP), São José dos Campos, São Paulo | |
dc.format.extent | 1279-1285 | |
dc.identifier | http://dx.doi.org/10.1007/s00784-012-0816-z | |
dc.identifier.citation | Clinical Oral Investigations, v. 17, n. 4, p. 1279-1285, 2013. | |
dc.identifier.doi | 10.1007/s00784-012-0816-z | |
dc.identifier.issn | 1432-6981 | |
dc.identifier.issn | 1436-3771 | |
dc.identifier.lattes | 7008114923397947 | |
dc.identifier.scopus | 2-s2.0-84876428659 | |
dc.identifier.uri | http://hdl.handle.net/11449/74120 | |
dc.identifier.wos | WOS:000317866800020 | |
dc.language.iso | eng | |
dc.relation.ispartof | Clinical Oral Investigations | |
dc.relation.ispartofjcr | 2.386 | |
dc.relation.ispartofsjr | 0,986 | |
dc.relation.ispartofsjr | 0,986 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | Epigenetic | |
dc.subject | Gingival fibroblasts | |
dc.subject | Keratinocytes | |
dc.subject | P. gingivalis LPS | |
dc.subject | Periodontitis | |
dc.title | Porphyromonas gingivalis LPS stimulation downregulates DNMT1, DNMT3a, and JMJD3 gene expression levels in human HaCaT keratinocytes | en |
dc.type | Artigo | |
dcterms.license | http://www.springer.com/open+access/authors+rights | |
unesp.author.lattes | 7008114923397947 | |
unesp.campus | Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campos | pt |