Crosstalk between reactive oxygen species and Dynamin-related protein 1 in periodontitis.
Crosstalk between reactive oxygen species and Dynamin-related protein 1 in periodontitis.
复制标题
牙周炎患者牙周组织中活性氧和动力蛋白相关蛋白1的相互作用。
DOI：
10.1016/j.freeradbiomed.2021.05.031
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发表时间：
2021-05
影响因子：
7.4
通讯作者：
Lixi Shi;Yinghui Ji;Shufan Zhao;Houxuan Li;Yun Jiang;Jiajie Mao;Yang Chen;Xiaorong Zhang;Y. Mao;Xiaoyu Sun;Panpan Wang;Jianfeng Ma;Sheng-Bing Huang
中科院分区：
文献类型：
--
作者：
Lixi Shi;Yinghui Ji;Shufan Zhao;Houxuan Li;Yun Jiang;Jiajie Mao;Yang Chen;Xiaorong Zhang;Y. Mao;Xiaoyu Sun;Panpan Wang;Jianfeng Ma;Sheng-Bing Huang
Excessive generation of reactive oxygen species (ROS) have great impacts on the development of periodontitis. Dynamin-related protein 1 (Drp1) mediated mitochondrial fission is the main reason and the result of excessive ROS generation. However, whether Drp1 and crosstalk between ROS and Drp1 contribute to the process of periodontitis remains elusive. We herein investigated the role and functional significance of crosstalk between ROS and Drp1 in periodontitis. Firstly, human periodontal ligament cells (hPDLCs) were treated with hydrogen peroxide (H2O2) and ROS inhibitor N-acetyl-cysteine (NAC) or Drp1 inhibitor mitochondrial division inhibitor 1 (Mdivi-1). Cell viability, apoptosis, osteogenic differentiation, expression of Drp1, and mitochondrial function were investigated. Secondly, mice with periodontitis were treated with NAC or Mdivi-1. Finally, gingival tissues were collected from periodontitis patients and healthy individuals to evaluate ROS and Drp1 levels. H2O2induced cellular injury and inflammation, excessive ROS production, mitochondrial abnormalities, and increased expression of p-Drp1 and Drp1 in hPDLCs, which could be reversed by NAC and Mdivi-1. Moreover, both NAC and Mdivi-1 ameliorated tissue damage and inflammation, and decreased expression of p-Drp1 and Drp1 in mice with periodontitis. More importantly, patients with periodontitis presented significantly higher levels of ROS-induced oxidative damage and p-Drp1 than that in healthy individuals and correlated with clinical parameters. In summary, ROS-Drp1 crosstalk greatly promotes the development of periodontitis. Pharmacological blockade of this crosstalk might be a novel therapeutic strategy for periodontitis.
