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Chen X, Zhang A, Zhao K, Gao H, Shi P, Chen Y, Cheng Z, Zhou W, Zhang Y. The role of oxidative stress in intervertebral disc degeneration: Mechanisms and therapeutic implications. Ageing Res Rev 2024; 98:102323. [PMID: 38734147 DOI: 10.1016/j.arr.2024.102323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/19/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024]
Abstract
Oxidative stress is one of the main driving mechanisms of intervertebral disc degeneration(IDD). Oxidative stress has been associated with inflammation in the intervertebral disc, cellular senescence, autophagy, and epigenetics of intervertebral disc cells. It and the above pathological mechanisms are closely linked through the common hub reactive oxygen species(ROS), and promote each other in the process of disc degeneration and promote the development of the disease. This reveals the important role of oxidative stress in the process of IDD, and the importance and great potential of IDD therapy targeting oxidative stress. The efficacy of traditional therapy is unstable or cannot be maintained. In recent years, due to the rise of materials science, many bioactive functional materials have been applied in the treatment of IDD, and through the combination with traditional drugs, satisfactory efficacy has been achieved. At present, the research review of antioxidant bioactive materials in the treatment of IDD is not complete. Based on the existing studies, the mechanism of oxidative stress in IDD and the common antioxidant therapy were summarized in this paper, and the strategies based on emerging bioactive materials were reviewed.
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Affiliation(s)
- Xianglong Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Anran Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kangcheng Zhao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Haiyang Gao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Pengzhi Shi
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuhang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhangrong Cheng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wenjuan Zhou
- Department of Operating Room, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Yukun Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Sulaimani N, Houghton MJ, Bonham MP, Williamson G. Effects of (Poly)phenols on Circadian Clock Gene-Mediated Metabolic Homeostasis in Cultured Mammalian Cells: A Scoping Review. Adv Nutr 2024; 15:100232. [PMID: 38648895 PMCID: PMC11107464 DOI: 10.1016/j.advnut.2024.100232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/02/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024] Open
Abstract
Circadian clocks regulate metabolic homeostasis. Disruption to our circadian clocks, by lifestyle behaviors such as timing of eating and sleeping, has been linked to increased rates of metabolic disorders. There is now considerable evidence that selected dietary (poly)phenols, including flavonoids, phenolic acids and tannins, may modulate metabolic and circadian processes. This review evaluates the effects of (poly)phenols on circadian clock genes and linked metabolic homeostasis in vitro, and potential mechanisms of action, by critically evaluating the literature on mammalian cells. A systematic search was conducted to ensure full coverage of the literature and identified 43 relevant studies addressing the effects of (poly)phenols on cellular circadian processes. Nobiletin and tangeretin, found in citrus, (-)-epigallocatechin-3-gallate from green tea, urolithin A, a gut microbial metabolite from ellagitannins in fruit, curcumin, bavachalcone, cinnamic acid, and resveratrol at low micromolar concentrations all affect circadian molecular processes in multiple types of synchronized cells. Nobiletin emerges as a putative retinoic acid-related orphan receptor (RORα/γ) agonist, leading to induction of the circadian regulator brain and muscle ARNT-like 1 (BMAL1), and increased period circadian regulator 2 (PER2) amplitude and period. These effects are clear despite substantial variations in the protocols employed, and this review suggests a methodological framework to help future study design in this emerging area of research.
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Affiliation(s)
- Noha Sulaimani
- Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, Australia; Victorian Heart Institute, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Australia; Department of Food and Nutrition, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Michael J Houghton
- Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, Australia; Victorian Heart Institute, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Australia
| | - Maxine P Bonham
- Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, Australia
| | - Gary Williamson
- Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, Australia; Victorian Heart Institute, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Australia.
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Wang T, Xu H, Wu S, Guo Y, Zhao G, Wang D. Mechanisms Underlying the Effects of the Green Tea Polyphenol EGCG in Sarcopenia Prevention and Management. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37316469 DOI: 10.1021/acs.jafc.3c02023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sarcopenia is prevalent among the older population and severely affects human health. Tea catechins may benefit for skeletal muscle performance and protect against secondary sarcopenia. However, the mechanisms underlying their antisarcopenic effect are still not fully understood. Despite initial successes in animal and early clinical trials regarding the safety and efficacy of (-)-epigallocatechin-3-gallate (EGCG), a major catechin of green tea, many challenges, problems, and unanswered questions remain. In this comprehensive review, we discuss the potential role and underlying mechanisms of EGCG in sarcopenia prevention and management. We thoroughly review the general biological activities and general effects of EGCG on skeletal muscle performance, EGCG's antisarcopenic mechanisms, and recent clinical evidence of the aforesaid effects and mechanisms. We also address safety issues and provide directions for future studies. The possible concerted actions of EGCG indicate the need for further studies on sarcopenia prevention and management in humans.
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Affiliation(s)
- Taotao Wang
- Department of Clinical Nutrition, Affiliated Hospital of Jiangsu University, 212000 Zhenjiang, China
| | - Hong Xu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100 Zhenjiang, China
| | - Shanshan Wu
- College of Agriculture & Biotechnology, Zhejiang University, 310058 Hangzhou, China
| | - Yuanxin Guo
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100 Zhenjiang, China
| | - Guangshan Zhao
- College of Food Science & Technology, Henan Agricultural University, 450002 Zhengzhou, China
| | - Dongxu Wang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100 Zhenjiang, China
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Mei L, Zheng Y, Gao X, Ma T, Xia B, Hao Y, Wei B, Wei Y, Luo Z, Huang J. Hsa-let-7f-1-3p targeting the circadian gene Bmal1 mediates intervertebral disc degeneration by regulating autophagy. Pharmacol Res 2022; 186:106537. [DOI: 10.1016/j.phrs.2022.106537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/29/2022] [Accepted: 11/01/2022] [Indexed: 11/11/2022]
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Hu Z, Wang Y, Gao X, Zhang Y, Liu C, Zhai Y, Chang X, Li H, Li Y, Lou J, Li C. Optineurin-mediated mitophagy as a potential therapeutic target for intervertebral disc degeneration. Front Pharmacol 2022; 13:893307. [PMID: 36105191 PMCID: PMC9465714 DOI: 10.3389/fphar.2022.893307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/01/2022] [Indexed: 12/05/2022] Open
Abstract
Low back pain is thought to be mainly caused by intervertebral disc degeneration (IVDD), and there is a lack of effective treatments. Cellular senescence and matrix degradation are important factors that cause disc degeneration. Mitochondrial dysfunction induced by oxidative stress is an important mechanism of cellular senescence and matrix degradation in the nucleus pulposus (NP), and mitophagy can effectively remove damaged mitochondria, restore mitochondrial homeostasis, and mitigate the damage caused by oxidative stress. Optineurin (OPTN) is a selective mitophagy receptor, and its role in intervertebral disc degeneration remains unclear. Here, we aimed to explore the effect of OPTN on H2O2-induced nucleus pulposus cell (NPCs) senescence and matrix degradation in a rat model of disc degeneration. Western blot analysis showed that OPTN expression was reduced in degenerative human and rat nucleus pulposus tissues and increased in H2O2-induced senescent NPCs. OPTN overexpression significantly inhibited H2O2-induced senescence and increased matrix-associated protein expression in NPCs, but OPTN knockdown showed the opposite effect. As previous reports have suggested that mitophagy significantly reduces mitochondrial damage and reactive oxygen species (ROS) caused by oxidative stress, and we used the mitophagy agonist CCCP, the mitophagy inhibitor cyclosporin A (CsA), and the mitochondrial ROS (mtROS) scavenger mitoTEMPO and confirmed that OPTN attenuated NPCs senescence and matrix degeneration caused by oxidative stress by promoting mitophagy to scavenge damaged mitochondria and excess reactive oxygen species, thereby slowing the progression of IVDD. In conclusion, our research suggests that OPTN is involved in IVDD and exerts beneficial effects against IVDD.
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Affiliation(s)
- Zhilei Hu
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Yu Wang
- Department of Ophthalmology, Southwest Hospital, Army Military Medical University, Chongqing, China
| | - Xiaoxin Gao
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Yuyao Zhang
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Chenhao Liu
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Yu Zhai
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Xian Chang
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Haiyin Li
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Yueyang Li
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Jinhui Lou
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Changqing Li
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
- *Correspondence: Changqing Li,
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Zheng Y, Mei L, Li S, Ma T, Xia B, Hao Y, Gao X, Wei B, Wei Y, Jing D, Luo Z, Huang J. Pulsed Electromagnetic Field Alleviates Intervertebral Disc Degeneration by Activating Sirt1-Autophagy Signaling Network. Front Bioeng Biotechnol 2022; 10:853872. [PMID: 35387300 PMCID: PMC8978825 DOI: 10.3389/fbioe.2022.853872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Intervertebral disc (IVD) degeneration is regarded as a major contributor to low back pain (LBP), causing serious economic burden on individuals and society. Unfortunately, there are limited effective treatment for IVD degeneration. Pulsed electromagnetic field (PEMF) is an economical and effective physical therapy method, with reduced side-effects. It offers certain protection to a number of degenerative diseases. Therefore, understanding the underlying mechanism of PEMF on IVD is important for improving the PEMF therapeutic efficiency. In this study, PEMF up-regulated extracellular matrix (ECM) related genes in degenerated nucleus pulposus (NP) cells. It also increased SIRT1 expression and promoted autophagy in degenerated NP cells. In contrast, the autophagy suppressor 3-methyladenine (3-MA) reversed the beneficial effect of PEMF on ECM production. Similarly, the SIRT1 enzyme activity suppressor EX 527 also inhibited the effect of PEMF on autophagy and ECM production in NP cells, thereby suggesting that PEMF regulated ECM related genes expression through SIRT1-autophagy signaling pathway. Lastly, PEMF significantly reduced IVD degeneration in a rat model of IVD degeneration in vivo. In summary, our study uncovers a critical role of SIRT1-dependent autophagy signaling pathway in ECM protection and thus in the establishment of therapeutic effect of PEMF on IVD degeneration.
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Affiliation(s)
- Yi Zheng
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Liangwei Mei
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shengyou Li
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Teng Ma
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Bing Xia
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yiming Hao
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xue Gao
- Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Bin Wei
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yitao Wei
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Da Jing
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Zhuojing Luo
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jinghui Huang
- Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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Circadian Rhythm Modulates the Therapeutic Activity of Pulsed Electromagnetic Fields on Intervertebral Disc Degeneration in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9067611. [PMID: 35368872 PMCID: PMC8975688 DOI: 10.1155/2022/9067611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 02/23/2022] [Accepted: 03/10/2022] [Indexed: 11/29/2022]
Abstract
Circadian rhythm (CR) imparts significant benefits in treating multiple diseases, such as heart diseases and arthritis. But the CR effect on intervertebral disc degeneration (IVDD) therapy remains unclear. Recent studies revealed that pulsed electromagnetic fields (PEMF) are capable of alleviating IVDD. In this study, we evaluated the CR-mediated regulation of PEMF therapeutic effect on IVDD induced by rat tail disc needle puncture. Our results demonstrated that the daytime PEMF stimulation (DPEMF) is more effective than the nighttime PEMF (NPEMF) in delaying IVDD. Moreover, the rats treated with DPEMF maintained better disc stability and histology after 8 weeks, relative to NPEMF. CR and PEMF cotherapies were also examined in cellular models, whereby serum shock was used to induce different levels of clock gene expression in the nucleus pulposus (NP), thus imitating CR in vitro. PEMF at ZT8 (higher level of clock gene expression) correlated with a higher extracellular matrix (ECM) component expression, compared to ZT20 (lower level of clock gene expression). Taken together, these data suggest a strong role of CR in regulating the beneficial effect of PEMF on IVDD. Our findings provide a potential clinical significance of CR in optimizing PEMF positive effects on IVDD.
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Zhang Y, Cheng L, Liu Y, Zhang R, Wu Z, Cheng K, Zhang X. Omics Analyses of Intestinal Microbiota and Hypothalamus Clock Genes in Circadian Disturbance Model Mice Fed with Green Tea Polyphenols. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:1890-1901. [PMID: 35112849 DOI: 10.1021/acs.jafc.1c07594] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Green tea polyphenols (GTP) have similar activities as prebiotics, which effectively regulate the structure of intestinal flora and affect their metabolic pathways. The intestinal flora is closely related to the host's circadian rhythm, and the supplementation with GTP may be an effective way to improve circadian rhythm disorders. In this study, we established a mouse model of circadian rhythm disturbance of anthropogenic flora to investigate the regulation mechanism of GTP on the host circadian rhythms. After 4 weeks of GTP administration, the results showed that GTP significantly alleviated the structural disorder of intestinal microbiota, thus effectively regulating related metabolites associated with brain nerves and circadian rhythms. Moreover, single-cell transcription of the mouse hypothalamus suggested that GTP up-regulated the number of astrocytes and oligodendrocytes and adjusted the expression of core clock genes Csnk1d, Clock, Per3, Cry2, and BhIhe41 caused by circadian disruption. Therefore, this study provided evidence that GTP can improve the physiological health of hosts with the circadian disorder by positively affecting intestinal flora and related metabolites and regulating circadian gene expression.
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Affiliation(s)
- Yuting Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, P.R. China
| | - Lu Cheng
- Department of Food Science, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08901, United States
| | - Yanan Liu
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, P.R. China
| | - Ruilin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, P.R. China
| | - Zufang Wu
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, P.R. China
| | - Kejun Cheng
- Chemical Biology Center, Lishui Institute of Agriculture and Forestry Sciences, Lishui 323000, P.R. China
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, P.R. China
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