Expression of MMP-8 and MMP-13 genes in the periodontal ligament during tooth movement in rats

I. Takahashi, M. Nishimura, K. Onodera, J. W. Bae, H. Mitani, M. Okazaki, Y. Sasano, H. Mitani

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

Periodontal ligament tissue is remodeled on both the tension and compression sides of moving teeth during orthodontic tooth movement. The present study was designed to clarify the hypothesis that the expression of MMP-8 and MMP-13 mRNA is promoted during the remodeling of periodontal ligament tissue in orthodontic tooth movement. We used the in situ hybridization method and semi-quantitative reverse-transcription/polymerase chain-reaction analysis to elucidate the gene expression of MMP-8 and MMP-13 mRNA. Expression of MMP-8 and MMP-13 mRNA transiently increased on both the compression and tension sides during active tooth movement in vivo. The gene expression of MMP-8 and MMP-13 was induced by tension, while compression indirectly promoted the gene expression of MMP-8 and MMP-13 through soluble factors in vitro. Thus, we concluded that the expression of MMP-8 and MMP-13 is differentially regulated by tension and compression, and plays an important role in the remodeling of the periodontal ligament.

Original languageEnglish
Pages (from-to)646-651
Number of pages6
JournalJournal of Dental Research
Volume82
Issue number8
DOIs
Publication statusPublished - Aug 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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