ConclusionsThis study substantiates the mechanoregulation of the expression of ECM?related molecules in PDL cells. High?level mechanical stretching upregulated the expression of MMP2 and TIMP2 mRNAs, but did not affect collagen production or LOX activity. In addition to increasing the transcription of COL1A1, COL3A1 and LOX genes, low?level mechanical stretching enhanced total collagen production and LOX activity, which should favor ECM stabilization. As an effective regulator of ECM remodeling, mechanical stretching can be exploited in periodontal regeneration and ligament tissue engineering via application of appropriate mechanical stimulation. (Source: Journal of Periodontal Research)
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