Possible Mechanisms of Progression of Periodontits by MMP-3 in Diabetic Patients

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Diabetic patients are susceptible to severe inflammatory periodontitis. In the present study, we found that high glucose increased MMP-3, but not sIL-6R production in gingival fibroblasts. In addition, sIL-6R production was suppressed by MMP-3 inhibitor in THP-1 macrophages. These results suggest that MMP-3 has a key role in developing severe periodontitis in diabetic patients. Furthermore, it has been considered that IL-6 signals are very important factor surrounding gingival fibroblasts/macrophage interaction in severe periodontitis seen in diabetic patients.