机构:[a]Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiang’su, China[b]Department of Orthopedics, Huai’an Second People’s Hospital, The Affiliated Huai’an Hospital of Xuzhou Medical University, Huai’an, Jiang’su, China[c]Department of General Surgery, Huai’an Tumor Hospital, Huai’an, Jiang’su, China
Abnormal destruction of the components of the articular extracellular matrix (ECM) such as type II collagen and aggrecan caused by advanced glycation end products (AGEs) has been considered as one of the pathological characteristics of osteoarthritis (OA). Receptor-interacting protein 1 (RIP1), an important serine/threonine kinase, possesses a variety of biological functions including cell proliferation, survival and death. The physiological roles of RIP1 in OA have not been reported before. Here, we found that AGEs increased the expression of RIP1 in human chondrosarcoma cell line SW1353 cells. Importantly, we found that antagonism of RIP1 using its specific inhibitor necrostatin-1 (Nec-1) ameliorated AGE-induced degradation of type II collagen and aggrecan in SW1353 cells. We also found that treatment with Nec-1 reduced the expression of MMP-3 and MMP-13 but restored the expression of Tissue inhibitor of metalloproteinase (TIMP)-1 and TIMP-2. Also, our results indicate that Nec-1 inhibited AGE-induced expression of ADAMTS-4 and ADAMTS-5. Mechanistically, we found that Nec-1 treatment inhibited the activation of JNK and the transcriptional factor AP-1 by reducing the expressions of c-Fos and c-Jun, the two main components of AP-1. Additionally, we found that Nec-1 treatment abolished AGE-induced activation of the transcriptional factor NF-kappa B by suppressing the nuclear translocation of p65. These findings suggest that RIP1 might be an important therapeutic target of OA.
第一作者机构:[a]Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiang’su, China[b]Department of Orthopedics, Huai’an Second People’s Hospital, The Affiliated Huai’an Hospital of Xuzhou Medical University, Huai’an, Jiang’su, China
通讯作者:
通讯机构:[*1]Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055, San-xiang Road, Jiang’su, Suzhou 215504, China
推荐引用方式(GB/T 7714):
Xiaowu Hu,Yuke Zhu,Junsheng Wang,et al.The specific RIP1 inhibitor necrostatin-1 ameliorated degradation of ECM in human SW1353 cells[J].ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY.2018,46(sup3):S1169-S1175.doi:10.1080/21691401.2018.1533848.
APA:
Xiaowu Hu,Yuke Zhu,Junsheng Wang,Jinshan Tang,Huaixi Yu...&Qirong Dong.(2018).The specific RIP1 inhibitor necrostatin-1 ameliorated degradation of ECM in human SW1353 cells.ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY,46,(sup3)
MLA:
Xiaowu Hu,et al."The specific RIP1 inhibitor necrostatin-1 ameliorated degradation of ECM in human SW1353 cells".ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 46..sup3(2018):S1169-S1175