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Zhao WJ, Liu X, Hu M, Zhang Y, Shi PZ, Wang JW, Lu XH, Cheng XF, Tao YP, Feng XM, Wang YX, Zhang L. Quercetin ameliorates oxidative stress-induced senescence in rat nucleus pulposus-derived mesenchymal stem cells via the miR-34a-5p/SIRT1 axis. World J Stem Cells 2023; 15:842-865. [PMID: 37700818 PMCID: PMC10494568 DOI: 10.4252/wjsc.v15.i8.842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/25/2023] [Accepted: 06/27/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IDD) is a main contributor to low back pain. Oxidative stress, which is highly associated with the progression of IDD, increases senescence of nucleus pulposus-derived mesenchymal stem cells (NPMSCs) and weakens the differentiation ability of NPMSCs in degenerated intervertebral discs (IVDs). Quercetin (Que) has been demonstrated to reduce oxidative stress in diverse degenerative diseases. AIM To investigate the role of Que in oxidative stress-induced NPMSC damage and to elucidate the underlying mechanism. METHODS In vitro, NPMSCs were isolated from rat tails. Senescence-associated β-galactosidase (SA-β-Gal) staining, cell cycle, reactive oxygen species (ROS), real-time quantitative polymerase chain reaction (RT-qPCR), immunofluorescence, and western blot analyses were used to evaluated the protective effects of Que. Meanwhile the relationship between miR-34a-5p and Sirtuins 1 (SIRT1) was evaluated by dual-luciferase reporter assay. To explore whether Que modulates tert-butyl hydroperoxide (TBHP)-induced senescence of NPMSCs via the miR-34a-5p/SIRT1 pathway, we used adenovirus vectors to overexpress and downregulate the expression of miR-34a-5p and used SIRT1 siRNA to knockdown SIRT1 expression. In vivo, a puncture-induced rat IDD model was constructed, and X rays and histological analysis were used to assess whether Que could alleviate IDD in vivo. RESULTS We found that TBHP can cause NPMSCs senescence changes, such as reduced cell proliferation ability, increased SA-β-Gal activity, cell cycle arrest, the accumulation of ROS, and increased expression of senescence-related proteins. While abovementioned senescence indicators were significantly alleviated by Que treatment. Que decreased the expression levels of senescence-related proteins (p16, p21, and p53) and senescence-associated secreted phenotype (SASP), including IL-1β, IL-6, and MMP-13, and it increased the expression of SIRT1. In addition, the protective effects of Que on cell senescence were partially reversed by miR-34a-5p overexpression and SIRT1 knockdown. In vivo, X-ray, and histological analyses indicated that Que alleviated IDD in a puncture-induced rat model. CONCLUSION In summary, the present study provides evidence that Que reduces oxidative stress-induced senescence of NPMSCs via the miR-34a/SIRT1 signaling pathway, suggesting that Que may be a potential agent for the treatment of IDD.
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Affiliation(s)
- Wen-Jie Zhao
- Graduate School, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Xin Liu
- Department of Orthopedics, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu Province, China
| | - Man Hu
- Graduate School, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Yu Zhang
- Department of Orthopedics, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu Province, China
| | - Peng-Zhi Shi
- Graduate School, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Jun-Wu Wang
- Department of Orthopedics, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu Province, China
| | - Xu-Hua Lu
- Department of Orthopedics, Changzheng Hospital of The Second Military Medical University, Shanghai 200003, China
| | - Xiao-Fei Cheng
- Department of Orthopedic Surgery, Shanghai Key Laboratory of Orthopedics Implants, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Yu-Ping Tao
- Department of Orthopedics, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu Province, China
| | - Xin-Min Feng
- Department of Orthopedics, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu Province, China
| | - Yong-Xiang Wang
- Department of Orthopedics, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu Province, China
| | - Liang Zhang
- Department of Orthopedics, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu Province, China.
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Wang JW, Shi PZ, Zhu XD, Zhu L, Feng XM, Zhang WJ, Zhang L. Influence of the facet joint angle on facet joint degeneration following pedicle screw fixation without fusion in thoracolumbar fractures. J Back Musculoskelet Rehabil 2022; 36:337-346. [PMID: 36278333 DOI: 10.3233/bmr-210235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Posterior approach pedicle screw fixation without fusion is widely used in the treatment of neurologically intact type A3 thoracolumbar fractures. OBJECTIVE To analyze the influence of the facet joint (FJ) angle on FJ degeneration following posterior approach pedicle screw fixation without fusion in neurologically intact type A3 thoracolumbar fractures. METHODS Fifty-eight patients who underwent pedicle screw fixation via the traditional posterior approach (n= 28) or the Wiltse approach (n= 30) were enrolled. A CT scan was performed before fixation and before fixation removal (Within 1.5 to 2 years after fixation) to evaluate the FJs parameters, including FJ inclination (FJI), FJ tropism (FJT), FJ violation, and FJ degeneration grade (FJDG), of three fixed segments and the adjacent segment below the fixed segments. RESULTS There was no significant difference in FJ violation rate, FJDG deterioration, or FJ angle between the two groups (P> 0.05). FJDG deterioration showed a weak positive correlation with FJI and FJT before fixation, and the angular change in FJI (P< 0.05); and FJT before fixation and the angular change in FJI were risk factors for FJDG deterioration (P< 0.01). CONCLUSION The Wiltse approach did not increase the rate of FJDG deterioration and FJs angle changes. However, the FJT before fixation and the angular change in FJI were risk factors for FJDG deterioration.
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Affiliation(s)
- Jun-Wu Wang
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.,Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China.,Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Peng-Zhi Shi
- Graduate School of Dalian Medical University, Dalian, Liaoning, China.,Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xu-Dong Zhu
- Department of Medical Imaging, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Lei Zhu
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Xin-Min Feng
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Wen-Jie Zhang
- Department of Orthopedics, International Zhuang Hospital, Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi, China
| | - Liang Zhang
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
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Shi PZ, Wang JW, Wang PC, Han B, Lu XH, Ren YX, Feng XM, Cheng XF, Zhang L. Urolithin a alleviates oxidative stress-induced senescence in nucleus pulposus-derived mesenchymal stem cells through SIRT1/PGC-1α pathway. World J Stem Cells 2021; 13:1928-1946. [PMID: 35069991 PMCID: PMC8727228 DOI: 10.4252/wjsc.v13.i12.1928] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/12/2021] [Accepted: 11/28/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND In degenerative intervertebral disc (IVD), an unfavorable IVD environment leads to increased senescence of nucleus pulposus (NP)-derived mesenchymal stem cells (NPMSCs) and the inability to complete the differentiation from NPMSCs to NP cells, leading to further aggravation of IVD degeneration (IDD). Urolithin A (UA) has been proven to have obvious effects in delaying cell senescence and resisting oxidative stress.
AIM To explore whether UA can alleviate NPMSCs senescence and to elucidate the underlying mechanism.
METHODS In vitro, we harvested NPMSCs from rat tails, and divided NPMSCs into four groups: the control group, H2O2 group, H2O2 + UA group, and H2O2 + UA + SR-18292 group. Senescence-associated β-Galactosidase (SA-β-Gal) activity, cell cycle, cell proliferation ability, and the expression of senescence-related and silent information regulator of transcription 1/PPAR gamma coactivator-1α (SIRT1/ PGC-1α) pathway-related proteins and mRNA were used to evaluate the protective effects of UA. In vivo, an animal model of IDD was constructed, and X-rays, magnetic resonance imaging, and histological analysis were used to assess whether UA could alleviate IDD in vivo.
RESULTS We found that H2O2 can cause NPMSCs senescence changes, such as cell cycle arrest, reduced cell proliferation ability, increased SA-β-Gal activity, and increased expression of senescence-related proteins and mRNA. After UA pretreatment, the abovementioned senescence indicators were significantly alleviated. To further demonstrate the mechanism of UA, we evaluated the mitochondrial membrane potential and the SIRT1/PGC-1α pathway that regulates mitochondrial function. UA protected mitochondrial function and delayed NPMSCs senescence by activating the SIRT1/PGC-1α pathway. In vivo, we found that UA treatment alleviated an animal model of IDD by assessing the disc height index, Pfirrmann grade and the histological score.
CONCLUSION In summary, UA could activate the SIRT1/PGC-1α signaling pathway to protect mitochondrial function and alleviate cell senescence and IDD in vivo and vitro.
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Affiliation(s)
- Peng-Zhi Shi
- Department of Orthopedic, Dalian Medical University, Dalian 116000, Liaoning Province, China
| | - Jun-Wu Wang
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Ping-Chuan Wang
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Bo Han
- Department of Orthopedic, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Xu-Hua Lu
- Department of Orthopedics, Changzheng Hospital of The Second Military Medical University, Shanghai 200003, China
| | - Yong-Xin Ren
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Xin-Min Feng
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Xiao-Fei Cheng
- Department of Orthopedic Surgery, Shanghai Key Laboratory of Orthopedics Implants, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Liang Zhang
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
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