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首页> 外文期刊>Journal of applied toxicology >The dental resin monomers HEMA and TEGDMA have inhibitory effects on osteoclast differentiation with low cytotoxicity
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The dental resin monomers HEMA and TEGDMA have inhibitory effects on osteoclast differentiation with low cytotoxicity

机译:牙科树脂单体HEMA和TEGDMA对骨溶毒性分化的抑制作用有抑制作用

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The dental resin monomers 2-hydroxyethyl methacrylate (HEMA) and triethylene glycol dimethacrylate (TEGDMA) are released from the resin matrix due to unpolymerized monomers; once released, they influence various biological functions and the viability of cells in the oral environment. Although HEMA and TEGDMA have various effects on cells, including inflammation, inhibition of cell proliferation or differentiation, and apoptosis, the effects of these monomers on osteoclasts remain unknown. In this study, we investigated the effects of HEMA and TEGDMA on osteoclast differentiation of bone marrow-derived macrophages or murine monocytic cell line RAW-D. Both HEMA and TEGDMA inhibited osteoclast formation and their bone-resorbing activity at non-cytotoxic concentrations. Moreover, HEMA and TEGDMA decreased the expression of nuclear factor of activated T cells cytoplasmic-1 (NFATc1), a master regulator of osteoclast differentiation, and of osteoclast markers that are transcriptionally regulated by NFATc1, including Src and cathepsin K. Regarding their effects on signaling pathways involved in osteoclast differentiation, HEMA impaired the phosphorylation of extracellular signal-regulated kinase and Jun N-terminal kinase, whereas TEGDMA attenuated the phosphorylation of Akt and Jun N-terminal kinase. Thus, HEMA and TEGDMA inhibit osteoclast differentiation through different signaling pathways. This is the first report on the effects of the monomers HEMA and TEGDMA on osteoclasts. Copyright (C) 2017 John Wiley & Sons, Ltd.
机译:牙科树脂单体2-羟乙基甲基丙烯酸酯(HEMA)和三乙二醇二甲基丙烯酸酯(TEGDMA)由于未聚合的单体而从树脂基质中释放;一旦释放,它们会影响口腔环境中的各种生物学功能和细胞的可行性。虽然HEMA和TEGDMA对细胞有各种影响,包括炎症,抑制细胞增殖或分化,以及细胞凋亡,这些单体对破骨细胞的影响仍然未知。在这项研究中,我们研究了HEMA和TEGDMA对骨髓衍生的巨噬细胞或鼠单核细胞系Rraw-d的骨细胞分化的影响。 HEMA和TEGDMA均在非细胞毒性浓度下抑制骨蛋白酶形成及其骨再吸收活性。此外,HEMA和TEGDMA降低了活性T细胞细胞质-1(NFATC1)的核因子的表达,骨细胞分化的骨质骨质调节剂,并且由NFATC1转录的骨细胞标记物,包括SRC和CODEPSIN K.它们对其作用涉及破骨细胞分化的信号传导途径,HEMA损害了细胞外信号调节激酶和JUN N-末端激酶的磷酸化,而TEGDMA衰减AKT和JUN N-末端激酶的磷酸化。因此,HEMA和TEGDMA通过不同的信号通路抑制破骨细胞分化。这是第一报告单体HEMA和TEGDMA对破骨细胞的影响。版权所有(c)2017 John Wiley&Sons,Ltd。

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