高级检索
当前位置: 首页 > 详情页

Distinctive roles of tumor necrosis factor receptor type 1 and type 2 in a mouse disc degeneration model.

文献详情

资源类型:
Pubmed体系:
机构: [1]Department of Orthopedics, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu, 210009, PR China. [2]Department of Orthopedics, First Affiliated Hospital, Jinan University, Guangzhou, 510632, PR China. [3]Clinical Biomechanics and Biomimetic Materials Research Center, Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510632, PR China. [4]Department of Orthopedics, Jiangyin Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi City, Jiangsu, 214400, PR China
出处:
ISSN:

关键词: Intervertebral disc degeneration Tumor Necrosis Factor-α TNF receptor type 1 TNF receptor type 2 Progranulin Atsttrin

摘要:
Elevated tumor necrosis factor alpha (TNF-α) expression is correlated with the progression of intervertebral disc degeneration (IVDD). Progranulin binding to tumor necrosis factor receptor (TNFR) and its derivative Atsttrin are effective for treating inflammatory arthritis. We hypothesize that Atsttrin has a protective effect in IVDD through different roles of TNFR receptor type 1 (TNFR1) and TNFR receptor type 2 (TNFR2) in degenerated discs.IVDD models were established in TNFR1-/-, TNFR2-/- mice and their control littermates. Nucleus Pulpous (NP) samples from human patients and IVDD murine models were evaluated by X-ray, micro-MRI, μCT, histological staining and immunofluorescence staining. NP cells isolated from wild-type (WT), TNFR1-/- and TNFR2-/- mice were treated with TNF-α or Atsttrin and then assayed by Western blotting, qRT-PCR, and ELISA.TNFR1 and TNFR2 expression was significantly elevated in the disc tissues of both human patients and IVDD murine models. TNFR1 knockout contributed to reduced disc degeneration. In contrast, TNFR2 knockout was associated with enhanced IVDD severity, including degraded cellular composition, increased cell apoptosis and elevated vertebral destruction. Atsttrin protected against IVDD in WT and TNFR1-/- mouse models but had no effect in TNFR2-/- IVDD models. Additionally, in vitro NP cell-based assays demonstrated that TNF-α-stimulated catabolism and Atsttrin-activated anabolism depended on TNFR1 and TNFR2, respectively.TNFR1 is associated with the degenerative progression of IVDD, while TNFR2 contributes to the protective effect on the discs. Atsttrin protects against IVDD at least partially by inhibiting the TNFα/TNFR1 inflammatory/catabolic pathway and activating the TNFR2 protective/anabolic pathway.This study demonstrates that TNFR1 and TNFR2 have disparate roles in disc degeneration and hlights the potential use of Atsttrin as a therapeutic agent against IVDD in mice.© 2021 The Authors.

基金:
语种:
PubmedID:
中科院(CAS)分区:
出版当年[2020]版:
大类 | 3 区 医学
小类 | 2 区 骨科
最新[2025]版:
大类 | 1 区 医学
小类 | 1 区 骨科
第一作者:
第一作者机构: [1]Department of Orthopedics, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu, 210009, PR China.
共同第一作者:
通讯作者:
通讯机构: [4]Department of Orthopedics, Jiangyin Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi City, Jiangsu, 214400, PR China [*1]Department of Orthopaedics, Jiangyin Hospital Affiliated to Nanjing University of Chinese Medicine, 130 Renmin Road, Wuxi, Jiangsu, 214400, PR China
推荐引用方式(GB/T 7714):
APA:
MLA:

资源点击量:2018 今日访问量:0 总访问量:645 更新日期:2024-07-01 建议使用谷歌、火狐浏览器 常见问题

版权所有©2020 广东省中医院 技术支持:重庆聚合科技有限公司 地址:广州市越秀区大德路111号