Inhibition of matrix metalloproteinases expression in human dental pulp cells by all-trans retinoic

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All-trans retinoic acid(ATRA) inhibits matrix metalloproteinase(MMP)-2 and MMP-9 in synovial fibroblasts, skin fibroblasts,bronchoalveolar lavage cells and cancer cells, but activates MMP-9 in neuroblast and leukemia cells. Very little is known regarding
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