Fisetin regulates the biological effects of rat nucleus pulposus mesenchymal stem cells under oxidative stress by sirtuin-1 pathway

被引:4
|
作者
Zhou, Qing [1 ,2 ,3 ]
Zhu, Chao [3 ,4 ]
Xuan, Anwu [3 ]
Zhang, Junyou [3 ,4 ]
Zhu, Zhenbiao [3 ,4 ]
Tang, Liang [3 ,4 ]
Ruan, Dike [1 ,2 ,3 ,5 ]
机构
[1] Anhui Med Univ, Navy Clin Coll, Hefei, Anhui, Peoples R China
[2] Anhui Med Univ, Sch Clin Med 5, Hefei, Anhui, Peoples R China
[3] Peoples Liberat Army Gen Hosp, Med Ctr 6, Dept Orthoped Surg, Beijing, Peoples R China
[4] Southern Med Univ, Sch Clin Med 2, Guangzhou, Peoples R China
[5] Anhui Med Univ, Sch Clin Med 5, Hefei 230032, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
cells; apoptosis; inflammation; processes; stem cells; LOW-BACK-PAIN; MECHANISMS; EXPRESSION; CARE;
D O I
10.1002/iid3.865
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
BackgroundExcessive oxidative stress has been accepted as one of the critical factors for intervertebral disc degeneration (IDD), which is associated with low back pain (LBP). Fisetin (Fis) is a bioactive flavonoid that possesses strong bioactive activity. In present study, we aimed to illuminate the role of Fis on nucleus pulposus mesenchymal stem cells (NPMSCs). MethodsNPMSCs were isolated and cultured from rat NP tissues and identified by flow cytometry and multilinear differentiation. The cytotoxicity of Fis, EX-527, and hydrogen peroxide (H2O2) on NPMSCs was validated using Cell Counting Kit-8 tests. Cell apoptosis was tested by flow cytometry and TUNEL assay. Inflammatory mediators were assessed by Elisa tests, RT-PCR. Extracellular matrix (ECM) metabolism was measured by Western blot analysis and RT-qPCR. The expression of the SIRT1 was evaluated by Western blot analysis. ResultsNPMSCs were successfully isolated and cultured from rat NP tissues, and it has been identified by flow cytometry and multilinear differentiation. The results showed that Fis attenuated H2O2-induced apoptosis, inflammation, and ECM degradation of NPMSCs. Moreover, the above protective effects of Fis can be inhibited by EX-527, a unique SIRT1 inhibitor, indicating that SIRT1 may involve in the mechanism of Fis in protecting NPMSCs from oxidative stress. ConclusionsAs a natural compound with little cytotoxicity on NPMSCs, Fis alleviate H2O2-induced apoptosis, inflammation, and ECM degradation by suppressing oxidative stress, this finding may add the theoretical basis for research on new treatment of IDD based on NPMSCs.
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页数:11
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