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Wang J, Jing X, Liu X, Chen F, Ge Z, Liu X, Yang H, Guo Y, Cui X. Naringin safeguards vertebral endplate chondrocytes from apoptosis and NLRP3 inflammasome activation through SIRT3-mediated mitophagy. Int Immunopharmacol 2024; 140:112801. [PMID: 39121608 DOI: 10.1016/j.intimp.2024.112801] [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: 04/06/2024] [Revised: 06/23/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024]
Abstract
AIM The degradation of the cartilage endplate (CEP) plays a critical role in the initiation and progression of intervertebral disc degeneration (IVDD), a disease closely associated with inflammation and oxidative stress. Naringin (NGN), a flavonoid compound derived from citrus fruits, has been shown to exhibit significant anti-inflammatory and antioxidant properties. This suggests a promising avenue for NGN's application in IVDD therapy. This study aims to elucidate the therapeutic effects and underlying mechanisms of NGN on CEP degeneration, contributing to the formulation of evidence-based treatment strategies for IVDD. METHODS In vivo, we developed an intervertebral disc degeneration (IVDD) model in mice by excising the bilateral facet joints and surrounding ligaments, and evaluated the effects of naringin using HE staining and Micro-CT analysis. In vitro, endplate chondrocytes were isolated and subjected to TBHP to replicate the IVDD pathological condition. The protective effects of NGN on these cells were confirmed through immunofluorescence, Western Blot, and flow cytometry. RESULTS In vivo, NGN effectively mitigated IVDD progression and CEP calcification in mice. In vitro, NGN enhanced mitophagy and suppressed NLRP3 inflammasome activation through the SIRT3/FOXO3a/Parkin pathway. Furthermore, NGN safeguarded chondrocytes against apoptosis and calcification triggered by oxidative stress, in addition to mitigating the degradation of the extracellular matrix. However, silencing SIRT3 negated NGN's protective influence on chondrocytes. CONCLUSION Our study demonstrated that NGN effectively shields chondrocytes from apoptosis and NLRP3 inflammasome activation by facilitating SIRT3-mediated mitophagy. These insights could pave the way for innovative approaches in the prevention and management of IVDD.
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Affiliation(s)
- Jinjin Wang
- Department of Spine Surgery, Shandong Provincial Hospital, Shandong University, Jinan 250000, China
| | - Xingzhi Jing
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China
| | - Xiaoyang Liu
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China
| | - Feifei Chen
- Department of Spine Surgery, Shandong Provincial Qianfoshan Hospital Affiliated to Shandong First Medical University, Jinan 250000, China
| | - Zhongpeng Ge
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China
| | - Xiaodong Liu
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China
| | - Heng Yang
- Department of Spine Surgery, Shandong Provincial Hospital, Shandong University, Jinan 250000, China
| | - Yifei Guo
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China
| | - Xingang Cui
- Department of Spine Surgery, Shandong Provincial Hospital, Shandong University, Jinan 250000, China.
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Qian Z, Sun C, Li Q, Xie Y, Zhan L, Liu X, Wang G, Wei Y, Qiu J, Peng Q. Unravelling the antioxidant behaviour of self-assembly β-Sheet in silk fibroin. Redox Biol 2024; 76:103307. [PMID: 39213701 PMCID: PMC11401358 DOI: 10.1016/j.redox.2024.103307] [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: 07/17/2024] [Accepted: 08/08/2024] [Indexed: 09/04/2024] Open
Abstract
Local oxidative stress in diseases or injury severely hinders cell homeostasis and organ regeneration. Antioxidant therapy is an effective strategy for oxidative stress treatment. Biomaterials with good biocompatibility and reactive oxygen species (ROS) scavenging ability are good choices for antioxidant therapeutics. However, there are few natural biomaterials that are identified with both biocompatibility and strong antioxidant activity. Here, we show, for the first time, that silk fibroin (SF) is a strong antioxidant, which can eliminate ROS in both cells and zebrafish. We further demonstrate that the β-sheet structures turn into a random coiled structure when SF is treated with hydrogen peroxide. The content of β-sheet structures can be increased by heating, thus enhancing the antioxidation properties of SF. Therefore, SF can serve as a good antioxidant biomaterial for therapeutics, and its β-sheet structure-based antioxidation mechanism provides a novel theoretical basis, which could be a new cue for more antioxidant biomaterial discovery and identification.
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Affiliation(s)
- Zhiyong Qian
- Department of Anatomy the Basic Medicine College, Inner Mongolia Medical University, Hohhot, 010000, Inner Mongolia, China; Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Chang Sun
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Qianqian Li
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Yafan Xie
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Lingpeng Zhan
- Institute for Chemical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Xiangli Liu
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Guanbo Wang
- Institute for Chemical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Yen Wei
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China; School of Materials Science and Engineering, North Minzu University, Yinchuan, 750021, China.
| | - Juhui Qiu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China.
| | - Qin Peng
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China.
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Liu L, Wang W, Huang L, Xian Y, Ma W, Zhao L, Li Y, Zheng Z, Liu H, Wu D. Injectable Inflammation-Responsive Hydrogels for Microenvironmental Regulation of Intervertebral Disc Degeneration. Adv Healthc Mater 2024; 13:e2400717. [PMID: 38649143 DOI: 10.1002/adhm.202400717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Chronic local inflammation and excessive cell apoptosis in nucleus pulposus (NP) tissue are the main causes of intervertebral disc degeneration (IDD). Stimuli-responsive hydrogels have great potential in the treatment of IDD by facilitating localized and controlled drug delivery. Herein, an injectable drug-loaded dual stimuli-responsive adhesive hydrogel for microenvironmental regulation of IDD, is developed. The gelatin methacryloyl is functionalized with phenylboronic acid groups to enhance drug loading capacity and enable dual stimuli-responsive behavior, while the incorporation of oxidized hyaluronic acid further improves the adhesive properties. The prepared hydrogel exhibits an enhanced drug loading capacity for diol-containing drugs, pH- and reactive oxygen species (ROS)-responsive behaviors, excellent radical scavenging efficiency, potent antibacterial activity, and favorable biocompatibility. Furthermore, the hydrogel shows a beneficial protective efficacy on NP cells within an in vitro oxidative stress microenvironment. The in vivo results demonstrate the hydrogel's excellent therapeutic effect on treating IDD by maintaining water retention, restoring disc height, and promoting NP regeneration, indicating that this hydrogel holds great potential as a promising therapeutic approach for regulating the microenvironment and alleviating the progression of IDD.
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Affiliation(s)
- Lei Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wantao Wang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
- Pain Research Center, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Lin Huang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yiwen Xian
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wenzheng Ma
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
- Pain Research Center, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Lei Zhao
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yixi Li
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhaomin Zheng
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
- Pain Research Center, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Hongmei Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Decheng Wu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
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Yue C, Wu Y, Xia Y, Xin T, Gong Y, Tao L, Shen C, Zhu Y, Shen M, Wang D, Shen J. Tbxt alleviates senescence and apoptosis of nucleus pulposus cells through Atg7-mediated autophagy activation during intervertebral disk degeneration. Am J Physiol Cell Physiol 2024; 327:C237-C253. [PMID: 38853649 DOI: 10.1152/ajpcell.00126.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 06/03/2024] [Accepted: 06/03/2024] [Indexed: 06/11/2024]
Abstract
Intervertebral disk degeneration (IDD) is a significant cause of low back pain, characterized by excessive senescence and apoptosis of nucleus pulposus cells (NPCs). However, the precise mechanisms behind this senescence and apoptosis remain unclear. This study aimed to investigate the role of T-box transcription factor T (Tbxt) in IDD both in vitro and in vivo, using a hydrogen peroxide (H2O2)-induced NPCs senescence and apoptosis model, as well as a rat acupuncture IDD model. First, the expression of p16 and cleaved-caspase 3 significantly increased in degenerated human NPCs, accompanied by a decrease in Tbxt expression. Knockdown of Tbxt exacerbated senescence and apoptosis in the H2O2-induced NPCs degeneration model. Conversely, upregulation of Tbxt alleviated these effects induced by H2O2. Mechanistically, bioinformatic analysis revealed that the direct downstream target genes of Tbxt were highly enriched in autophagy-related pathways, and overexpression of Tbxt significantly activated autophagy in NPCs. Moreover, the administration of the autophagy inhibitor, 3-methyladenine, impeded the impact of Tbxt on the processes of senescence and apoptosis in NPCs. Further investigation revealed that Tbxt enhances autophagy by facilitating the transcription of ATG7 through its interaction with a specific motif within the promoter region. In conclusion, this study suggests that Tbxt mitigates H2O2-induced senescence and apoptosis of NPCs by activating ATG7-mediated autophagy.NEW & NOTEWORTHY This study investigates the role of Tbxt in IDD. The results demonstrate that knockdown of Tbxt exacerbates H2O2-induced senescence and apoptosis in NPCs and IDD, whereas upregulation of Tbxt significantly protects against IDD both in vivo and in vitro. Mechanistically, in the nucleus, Tbxt enhances the transcription of ATG7, leading to increased expression of ATG7 protein levels. This, in turn, promotes elevated autophagy levels, ultimately alleviating IDD.
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Affiliation(s)
- Caichun Yue
- Department of Orthopedics Surgery, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Yinghui Wu
- Department of Orthopedics Surgery, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Yanzhang Xia
- Department of Orthopedics Surgery, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Tianwen Xin
- Department of Orthopedics Surgery, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Yuhao Gong
- Department of Orthopedics Surgery, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Linfeng Tao
- Department of Critical Care Medicine, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Cong Shen
- State Key Laboratory of Reproductive Medicine, Center for Reproduction and Genetics, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Yue Zhu
- Department of Breast and Thyroid Surgery, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Minghong Shen
- Department of Pathology, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Donglai Wang
- Department of Orthopedics Surgery, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
| | - Jun Shen
- Department of Orthopedics Surgery, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
- Suzhou Key Laboratory of Orthopedic Medical Engineering, Suzhou Municipal Hospital/The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People's Republic of China
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Kamal S, Babar S, Ali W, Rehman K, Hussain A, Akash MSH. Sirtuin insights: bridging the gap between cellular processes and therapeutic applications. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03263-9. [PMID: 38976046 DOI: 10.1007/s00210-024-03263-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 06/24/2024] [Indexed: 07/09/2024]
Abstract
The greatest challenges that organisms face today are effective responses or detection of life-threatening environmental changes due to an obvious semblance of stress and metabolic fluctuations. These are associated with different pathological conditions among which cancer is most important. Sirtuins (SIRTs; NAD+-dependent enzymes) are versatile enzymes with diverse substrate preferences, cellular locations, crucial for cellular processes and pathological conditions. This article describes in detail the distinct roles of SIRT isoforms, unveiling their potential as either cancer promoters or suppressors and also explores how both natural and synthetic compounds influence the SIRT function, indicating promise for therapeutic applications. We also discussed the inhibitors/activators tailored to specific SIRTs, holding potential for diseases lacking effective treatments. It may uncover the lesser-studied SIRT isoforms (e.g., SIRT6, SIRT7) and their unique functions. This article also offers a comprehensive overview of SIRTs, linking them to a spectrum of diseases and highlighting their potential for targeted therapies, combination approaches, disease management, and personalized medicine. We aim to contribute to a transformative era in healthcare and innovative treatments by unraveling the intricate functions of SIRTs.
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Affiliation(s)
- Shagufta Kamal
- Department of Biochemistry, Government College University, Faisalabad, Pakistan
| | - Sharon Babar
- Department of Biochemistry, Government College University, Faisalabad, Pakistan
| | - Waqas Ali
- Department of Biochemistry, Government College University, Faisalabad, Pakistan
| | - Kanwal Rehman
- Department of Pharmacy, The Women University, Multan, Pakistan
| | - Amjad Hussain
- Institute of Chemistry, University of Okara, Okara, Punjab, Pakistan
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Tu H, Gao Q, Zhou Y, Peng L, Wu D, Zhang D, Yang J. The role of sirtuins in intervertebral disc degeneration: Mechanisms and therapeutic potential. J Cell Physiol 2024. [PMID: 38922861 DOI: 10.1002/jcp.31328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 04/27/2024] [Accepted: 05/13/2024] [Indexed: 06/28/2024]
Abstract
Intervertebral disc degeneration (IDD) is one of the main causes of low back pain, which affects the patients' quality of life and health and imposes a significant socioeconomic burden. Despite great efforts made by researchers to understand the pathogenesis of IDD, effective strategies for preventing and treating this disease remain very limited. Sirtuins are a highly conserved family of (NAD+)-dependent deacetylases in mammals that are involved in a variety of metabolic processes in vivo. In recent years, sirtuins have attracted much attention owing to their regulatory roles in IDD on physiological activities such as inflammation, apoptosis, autophagy, aging, oxidative stress, and mitochondrial function. At the same time, many studies have explored the therapeutic effects of sirtuins-targeting activators or micro-RNA in IDD. This review summarizes the molecular pathways of sirtuins involved in IDD, and summarizes the therapeutic role of activators or micro-RNA targeting Sirtuins in IDD, as well as the current limitations and challenges, with a view to provide possible solutions for the treatment of IDD.
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Affiliation(s)
- Heng Tu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Qian Gao
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yumeng Zhou
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Li Peng
- Key Laboratory of Bio-Resource & Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Dan Wu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Demao Zhang
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Jing Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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7
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Qiu X, Ma C, Luo Z, Zhang Y, Kang J, Zhu D, Wang Z, Li L, Wei Z, Wang Z, Kang X. Bradykinin protects nucleus pulposus cells from tert-butyl hydroperoxide-induced damage and delays intervertebral disc degeneration. Int Immunopharmacol 2024; 134:112161. [PMID: 38728878 DOI: 10.1016/j.intimp.2024.112161] [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: 12/29/2023] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/12/2024]
Abstract
Intervertebral disc degeneration (IVDD) is a leading cause of degenerative spinal disorders, involving complex biological processes. This study investigates the role of the kallikrein-kinin system (KKS) in IVDD, focusing on the protective effects of bradykinin (BK) on nucleus pulposus cells (NPCs) under oxidative stress. Clinical specimens were collected, and experiments were conducted using human and rat primary NPCs to elucidate BK's impact on tert-butyl hydroperoxide (TBHP)-induced oxidative stress and damage. The results demonstrate that BK significantly inhibits TBHP-induced NPC apoptosis and restores mitochondrial function. Further analysis reveals that this protective effect is mediated through the BK receptor 2 (B2R) and its downstream PI3K/AKT pathway. Additionally, BK/PLGA sustained-release microspheres were developed and validated in a rat model, highlighting their potential therapeutic efficacy for IVDD. Overall, this study sheds light on the crucial role of the KKS in IVDD pathogenesis and suggests targeting the B2R as a promising therapeutic strategy to delay IVDD progression and promote disc regeneration.
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Affiliation(s)
- Xiaoming Qiu
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Gansu provincial hospital of TCM (The First Affiliated Hospital of Gansu University of Chinese Medicine), Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Chongwen Ma
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Zhangbin Luo
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Yibao Zhang
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Jihe Kang
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Daxue Zhu
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Zhaoheng Wang
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Lei Li
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Ziyan Wei
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Zhuanping Wang
- Department of endocrinology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China
| | - Xuewen Kang
- Department of Orthopedics, Lanzhou University Second Hospital, The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu 730000, China.
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8
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Zeng Y, He Y, Wang L, Xu H, Zhang Q, Wang Y, Zhang J, Wang L. Dihydroquercetin improves experimental acute liver failure by targeting ferroptosis and mitochondria-mediated apoptosis through the SIRT1/p53 axis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155533. [PMID: 38552433 DOI: 10.1016/j.phymed.2024.155533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 02/26/2024] [Accepted: 03/11/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Ferroptosis and mitochondria-mediated apoptosis are both involved in the pathogenesis of acute liver failure (ALF). Ferroptosis-produced reactive oxygen species (ROS) trigger the chain oxidation of polyunsaturated phospholipids and promote mitochondrial apoptosis. Dihydroquercetin (DHQ) also plays an important protective role against liver injury. PURPOSE Here, we aimed to investigate the protective effects of DHQ on ALF. We also explored the underlying mechanism. METHODS We established a Lipopolysaccharide (LPS)/D-galactosamine (D-Gal)-induced ALF mouse model and tumor necrosis factor-α (TNF-α)/D-Gal-induced ALF LO2 cell model. 2',7'-Dichlorofluorescein diacetate (DCFH-DA) and Dihydroethidium (DHE) were used to detect total ROS levels. Lipid ROS was assessed using C11-BODIPY flow cytometry. Lipid peroxidative products levels were detected using MDA ELISA assay and 4-hydroxynonenal (4-HNE) immunohistochemistry. QRT-PCR and western blots were used to test mRNA and protein expression levels, respectively. Cell viability was evaluated with CCK8 assay, and apoptosis was analyzed using flow cytometry. RESULTS DHQ treatment improved LPS/D-Gal-induced ALF, as well as TNF-α/D-Gal-induced reductions in LO2 viability and increased sirtuin 1 (SIRT1) expression. DHQ pretreatment also reduced the accumulation of ROS, reduced lipid peroxidation, elevated mitochondrial membrane potentials (ΔΨm), and decreased liver cell apoptosis both in vivo and in vitro. Additionally, the knockdown of SIRT1 and p53 activator (Tenovin-6) treatment reversed DHQ's inhibitory effects on ferroptosis and mitochondria-mediated apoptosis in vitro. DHQ enhanced p53 deacetylation by both up-regulating SIRT1 expression and directly bonding to SIRT1. We also found that Tenovin-6's stimulatory effects on ferroptosis and mitochondria-mediated apoptosis in the DHQ-treated LO2 ALF cell model were partially attenuated by overexpression of solute carrier family 7member 11 (SLC7A11), as well as by apoptotic protease activating factor 1 (Apaf-1) knockdown. CONCLUSION Our results suggest that DHQ alleviated ALF by inhibiting both ferroptosis and mitochondria-mediated apoptosis by regulating the SIRT1/p53 axis. Thus, DHQ may serve as a novel therapy for ALF.
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Affiliation(s)
- Yuqiao Zeng
- Shandong Second Medical University, Weifang, Shandong 261053, China
| | - Yiyu He
- Department of Cardiovascular Disease, Renmin Hospital of Wuhan University, Wuchang District, Wuhan City, Hubei 430060, China
| | - Li Wang
- Shandong Second Medical University, Weifang, Shandong 261053, China
| | - Hao Xu
- Infection Control Center, Linyi People's Hospital. Lanshan District, Linyi City, Shandong 276000, China
| | - Qianwen Zhang
- Infection Control Center, Linyi People's Hospital. Lanshan District, Linyi City, Shandong 276000, China
| | - Yanjun Wang
- Jilin Jianwei Natural Biotechnology Co., Ltd. Kuancheng District, Changchun City, Jilin 510664, China
| | - Jianhua Zhang
- Outpatient Department, Shandong Public Health Clinical Center, Lixia District, Jinan City, Shandong 250100, China
| | - Likun Wang
- Infection Control Center, Linyi People's Hospital. Lanshan District, Linyi City, Shandong 276000, China.
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9
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Tang J, Luo Y, Wang Q, Wu J, Wei Y. Stimuli-Responsive Delivery Systems for Intervertebral Disc Degeneration. Int J Nanomedicine 2024; 19:4735-4757. [PMID: 38813390 PMCID: PMC11135562 DOI: 10.2147/ijn.s463939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/13/2024] [Indexed: 05/31/2024] Open
Abstract
As a major cause of low back pain, intervertebral disc degeneration is an increasingly prevalent chronic disease worldwide that leads to huge annual financial losses. The intervertebral disc consists of the inner nucleus pulposus, outer annulus fibrosus, and sandwiched cartilage endplates. All these factors collectively participate in maintaining the structure and physiological functions of the disc. During the unavoidable degeneration stage, the degenerated discs are surrounded by a harsh microenvironment characterized by acidic, oxidative, inflammatory, and chaotic cytokine expression. Loss of stem cell markers, imbalance of the extracellular matrix, increase in inflammation, sensory hyperinnervation, and vascularization have been considered as the reasons for the progression of intervertebral disc degeneration. The current treatment approaches include conservative therapy and surgery, both of which have drawbacks. Novel stimuli-responsive delivery systems are more promising future therapeutic options than traditional treatments. By combining bioactive agents with specially designed hydrogels, scaffolds, microspheres, and nanoparticles, novel stimuli-responsive delivery systems can realize the targeted and sustained release of drugs, which can both reduce systematic adverse effects and maximize therapeutic efficacy. Trigger factors are categorized into internal (pH, reactive oxygen species, enzymes, etc.) and external stimuli (photo, ultrasound, magnetic, etc.) based on their intrinsic properties. This review systematically summarizes novel stimuli-responsive delivery systems for intervertebral disc degeneration, shedding new light on intervertebral disc therapy.
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Affiliation(s)
- Jianing Tang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- First Clinic School, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yuexin Luo
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- First Clinic School, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Qirui Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- First Clinic School, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Juntao Wu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- First Clinic School, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yulong Wei
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
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10
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Li Y, Wang W, Kong C, Chen X, Li C, Lu S. Identifying the miRNA-gene networks contributes to exploring paravertebral muscle degeneration's underlying pathogenesis and therapy strategy. Heliyon 2024; 10:e30517. [PMID: 38765163 PMCID: PMC11098802 DOI: 10.1016/j.heliyon.2024.e30517] [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: 03/01/2024] [Revised: 04/24/2024] [Accepted: 04/29/2024] [Indexed: 05/21/2024] Open
Abstract
Low back pain (LBP) is a worldwide problem with public health. Paravertebral muscle degeneration (PMD) is believed to be associated with LBP. Increasing evidence has demonstrated that microRNA (miRNA)-mRNA signaling networks have been implicated in the pathophysiology of diseases. Research suggests that cell death, oxidative stress, inflammatory and immune response, and extracellular matrix (ECM) metabolism are the pathogenesis of PMD; however, the miRNA-mRNA mediated the pathological process of PMD remains elusive. RNA sequencing (RNA-seq) and single cell RNA-seq (scRNA-seq) are invaluable tools for uncovering the functional biology underlying these miRNA and gene expression changes. Using scRNA-seq, we show that multiple immunocytes are presented during PMD, revealing that they may have been implicated with PMD. Additionally, using RNA-seq, we identified 76 differentially expressed genes (DEGs) and 106 differentially expressed miRNAs (DEMs), among which IL-24 and CCDC63 were the top upregulated and downregulated genes in PMD. Comprehensive bioinformatics analyses, including Venn diagrams, differential expression, functional enrichment, and protein-protein interaction analysis, were then conducted to identify six ferroptosis-related DEGs, two oxidative stress-related DEGs, eleven immunity-related DEGs, five ECM-related DEGs, among which AKR1C2/AKR1C3/SIRT1/ALB/IL-24 belong to inflammatory genes. Furthermore, 67 DEMs were predicted to be upstream miRNAs of 25 key DEGs by merging RNA-seq, TargetScan, and mirDIP databases. Finally, a miRNA-gene network was constructed using Cytoscape software and an alluvial plot. ROC curve analysis unveiled multiple key DEGs with the high clinical diagnostic value, providing novel approaches for diagnosing and treating PMD diseases.
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Affiliation(s)
- Yongjin Li
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng District, Beijing, China
- Spine Center, Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, No.17, Lujiang Road, Hefei, Anhui, 230001, China
| | - Wei Wang
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng District, Beijing, China
| | - Chao Kong
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng District, Beijing, China
| | - Xiaolong Chen
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng District, Beijing, China
| | - Chaoyi Li
- Department of Joint Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
| | - Shibao Lu
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng District, Beijing, China
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11
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Peng F, Liao M, Jin W, Liu W, Li Z, Fan Z, Zou L, Chen S, Zhu L, Zhao Q, Zhan G, Ouyang L, Peng C, Han B, Zhang J, Fu L. 2-APQC, a small-molecule activator of Sirtuin-3 (SIRT3), alleviates myocardial hypertrophy and fibrosis by regulating mitochondrial homeostasis. Signal Transduct Target Ther 2024; 9:133. [PMID: 38744811 PMCID: PMC11094072 DOI: 10.1038/s41392-024-01816-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 02/20/2024] [Accepted: 03/25/2024] [Indexed: 05/16/2024] Open
Abstract
Sirtuin 3 (SIRT3) is well known as a conserved nicotinamide adenine dinucleotide+ (NAD+)-dependent deacetylase located in the mitochondria that may regulate oxidative stress, catabolism and ATP production. Accumulating evidence has recently revealed that SIRT3 plays its critical roles in cardiac fibrosis, myocardial fibrosis and even heart failure (HF), through its deacetylation modifications. Accordingly, discovery of SIRT3 activators and elucidating their underlying mechanisms of HF should be urgently needed. Herein, we identified a new small-molecule activator of SIRT3 (named 2-APQC) by the structure-based drug designing strategy. 2-APQC was shown to alleviate isoproterenol (ISO)-induced cardiac hypertrophy and myocardial fibrosis in vitro and in vivo rat models. Importantly, in SIRT3 knockout mice, 2-APQC could not relieve HF, suggesting that 2-APQC is dependent on SIRT3 for its protective role. Mechanically, 2-APQC was found to inhibit the mammalian target of rapamycin (mTOR)-p70 ribosomal protein S6 kinase (p70S6K), c-jun N-terminal kinase (JNK) and transforming growth factor-β (TGF-β)/ small mother against decapentaplegic 3 (Smad3) pathways to improve ISO-induced cardiac hypertrophy and myocardial fibrosis. Based upon RNA-seq analyses, we demonstrated that SIRT3-pyrroline-5-carboxylate reductase 1 (PYCR1) axis was closely assoiated with HF. By activating PYCR1, 2-APQC was shown to enhance mitochondrial proline metabolism, inhibited reactive oxygen species (ROS)-p38 mitogen activated protein kinase (p38MAPK) pathway and thereby protecting against ISO-induced mitochondrialoxidative damage. Moreover, activation of SIRT3 by 2-APQC could facilitate AMP-activated protein kinase (AMPK)-Parkin axis to inhibit ISO-induced necrosis. Together, our results demonstrate that 2-APQC is a targeted SIRT3 activator that alleviates myocardial hypertrophy and fibrosis by regulating mitochondrial homeostasis, which may provide a new clue on exploiting a promising drug candidate for the future HF therapeutics.
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Affiliation(s)
- Fu Peng
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Minru Liao
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenke Jin
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Wei Liu
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zixiang Li
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Zhichao Fan
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ling Zou
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, China
| | - Siwei Chen
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, China
| | - Lingjuan Zhu
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Qian Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Liang Ouyang
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jin Zhang
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, China.
| | - Leilei Fu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
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12
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Chen M, Tan J, Jin Z, Jiang T, Wu J, Yu X. Research progress on Sirtuins (SIRTs) family modulators. Biomed Pharmacother 2024; 174:116481. [PMID: 38522239 DOI: 10.1016/j.biopha.2024.116481] [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: 02/02/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024] Open
Abstract
Sirtuins (SIRTs) represent a class of nicotinamide adenine dinucleotide (NAD+)-dependent protein deacetylases that exert a crucial role in cellular signal transduction and various biological processes. The mammalian sirtuins family encompasses SIRT1 to SIRT7, exhibiting therapeutic potential in counteracting cellular aging, modulating metabolism, responding to oxidative stress, inhibiting tumors, and improving cellular microenvironment. These enzymes are intricately linked to the occurrence and treatment of diverse pathological conditions, including cancer, autoimmune diseases, and cardiovascular disorders. Given the significance of histone modification in gene expression and chromatin structure, maintaining the equilibrium of the sirtuins family is imperative for disease prevention and health restoration. Mounting evidence suggests that modulators of SIRTs play a crucial role in treating various diseases and maintaining physiological balance. This review delves into the molecular structure and regulatory functions of the sirtuins family, reviews the classification and historical evolution of SIRTs modulators, offers a systematic overview of existing SIRTs modulation strategies, and elucidates the regulatory mechanisms of SIRTs modulators (agonists and inhibitors) and their clinical applications. The article concludes by summarizing the challenges encountered in SIRTs modulator research and offering insights into future research directions.
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Affiliation(s)
- Mingkai Chen
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China; School of Medicine Jiangsu University, Zhenjiang, Jiangsu, China
| | - Junfei Tan
- School of Medicine Jiangsu University, Zhenjiang, Jiangsu, China
| | - Zihan Jin
- Changzhou Second People's Hospital Affiliated to Nanjing Medical University, Changzhou City, China
| | - Tingting Jiang
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Jiabiao Wu
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Xiaolong Yu
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China; The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China.
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13
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Tao Y, Yu X, Li X, Xu Y, Wang H, Zhang L, Lin R, Wang Y, Fan P. M6A methylation-regulated autophagy may be a new therapeutic target for intervertebral disc degeneration. Cell Biol Int 2024; 48:389-403. [PMID: 38317355 DOI: 10.1002/cbin.12135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/01/2024] [Indexed: 02/07/2024]
Abstract
Degeneration of intervertebral discs is considered one of the most important causes of low back pain and disability. The intervertebral disc (IVD) is characterized by its susceptibility to various stressors that accelerate the senescence and apoptosis of nucleus pulposus cells, resulting in the loss of these cells and dysfunction of the intervertebral disc. Therefore, how to reduce the loss of nucleus pulposus cells under stress environment is the main problem in treating intervertebral disc degeneration. Autophagy is a kind of programmed cell death, which can provide energy by recycling substances in cells. It is considered to be an effective method to reduce the senescence and apoptosis of nucleus pulposus cells under stress. However, further research is needed on the mechanisms by which autophagy of nucleus pulposus cells is regulated under stress environments. M6A methylation, as the most extensive RNA modification in eukaryotic cells, participates in various cellular biological functions and is believed to be related to the regulation of autophagy under stress environments, may play a significant role in nucleus pulposus responding to stress. This article first summarizes the effects of various stressors on the death and autophagy of nucleus pulposus cells. Then, it summarizes the regulatory mechanism of m6A methylation on autophagy-related genes under stress and the role of these autophagy genes in nucleus pulposus cells. Finally, it proposes that the methylation modification of autophagy-related genes regulated by m6A may become a new treatment approach for intervertebral disc degeneration, providing new insights and ideas for the clinical treatment of intervertebral disc degeneration.
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Affiliation(s)
- Yuao Tao
- Department of Spine Center, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Xiaoyu Yu
- Department of Gynaecology and Obstetrics, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaolong Li
- Department of Spine Center, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Yuzhu Xu
- Department of Spine Center, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Hui Wang
- Department of Spine Center, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Lele Zhang
- Department of Spine Center, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Rubing Lin
- Department of Orthopedics, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - Yuntao Wang
- Department of Spine Center, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Pan Fan
- Department of Spine Center, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
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14
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Shen J, Lan Y, Ji Z, Liu H. Sirtuins in intervertebral disc degeneration: current understanding. Mol Med 2024; 30:44. [PMID: 38553713 PMCID: PMC10981339 DOI: 10.1186/s10020-024-00811-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/20/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IVDD) is one of the etiologic factors of degenerative spinal diseases, which can lead to a variety of pathological spinal conditions such as disc herniation, spinal stenosis, and scoliosis. IVDD is a leading cause of lower back pain, the prevalence of which increases with age. Recently, Sirtuins/SIRTs and their related activators have received attention for their activity in the treatment of IVDD. In this paper, a comprehensive systematic review of the literature on the role of SIRTs and their activators on IVDD in recent years is presented. The molecular pathways involved in the regulation of IVDD by SIRTs are summarized, and the effects of SIRTs on senescence, inflammatory responses, oxidative stress, and mitochondrial dysfunction in myeloid cells are discussed with a view to suggesting possible solutions for the current treatment of IVDD. PURPOSE This paper focuses on the molecular mechanisms by which SIRTs and their activators act on IVDD. METHODS A literature search was conducted in Pubmed and Web of Science databases over a 13-year period from 2011 to 2024 for the terms "SIRT", "Sirtuin", "IVDD", "IDD", "IVD", "NP", "Intervertebral disc degeneration", "Intervertebral disc" and "Nucleus pulposus". RESULTS According to the results, SIRTs and a large number of activators showed positive effects against IVDD.SIRTs modulate autophagy, myeloid apoptosis, oxidative stress and extracellular matrix degradation. In addition, they attenuate inflammatory factor-induced disc damage and maintain homeostasis during disc degeneration. Several clinical studies have reported the protective effects of some SIRTs activators (e.g., resveratrol, melatonin, honokiol, and 1,4-dihydropyridine) against IVDD. CONCLUSION The fact that SIRTs and their activators play a hundred different roles in IVDD helps to better understand their potential to develop further treatments for IVDD. NOVELTY This review summarizes current information on the mechanisms of action of SIRTs in IVDD and the challenges and limitations of translating their basic research into therapy.
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Affiliation(s)
- Jianlin Shen
- Department of Orthopaedics, Affiliated Hospital of Putian University, Putian, 351100, Fujian, China
- Central Laboratory, Affiliated Hospital of Putian University, Putian, 351100, Fujian, China
| | - Yujian Lan
- School of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Ziyu Ji
- School of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China.
| | - Huan Liu
- Department of Orthopaedics, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, Sichuan, China.
- The Third People's Hospital of Longmatan District, Luzhou, 646000, Sichuan, China.
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15
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Xu WN, Zheng HL, Yang RZ, Sun YF, Peng BR, Liu C, Song J, Jiang SD, Zhu LX. The mitochondrial UPR induced by ATF5 attenuates intervertebral disc degeneration via cooperating with mitophagy. Cell Biol Toxicol 2024; 40:16. [PMID: 38472656 PMCID: PMC10933207 DOI: 10.1007/s10565-024-09854-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 02/27/2024] [Indexed: 03/14/2024]
Abstract
Intervertebral disc degeneration (IVDD) is an aging disease that results in a low quality of life and heavy socioeconomic burden. The mitochondrial unfolded protein response (UPRmt) take part in various aging-related diseases. Our research intents to explore the role and underlying mechanism of UPRmt in IVDD. Nucleus pulposus (NP) cells were exposed to IL-1β and nicotinamide riboside (NR) served as UPRmt inducer to treat NP cells. Detection of ATP, NAD + and NADH were used to determine the function of mitochondria. MRI, Safranin O-fast green and Immunohistochemical examination were used to determine the degree of IVDD in vivo. In this study, we discovered that UPRmt was increased markedly in the NP cells of human IVDD tissues than in healthy controls. In vitro, UPRmt and mitophagy levels were promoted in NP cells treated with IL-1β. Upregulation of UPRmt by NR and Atf5 overexpression inhibited NP cell apoptosis and further improved mitophagy. Silencing of Pink1 reversed the protective effects of NR and inhibited mitophagy induced by the UPRmt. In vivo, NR might attenuate the degree of IDD by activating the UPRmt in rats. In summary, the UPRmt was involved in IVDD by regulating Pink1-induced mitophagy. Mitophagy induced by the UPRmt might be a latent treated target for IVDD.
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Affiliation(s)
- Wen-Ning Xu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
- Department of Clinic of Spine Center, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200082, China
| | - Huo-Liang Zheng
- Department of Clinic of Spine Center, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200082, China
| | - Run-Ze Yang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Yuan-Fang Sun
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Bi-Rong Peng
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Chun Liu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Jian Song
- Department of Clinic of Spine Center, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200082, China.
- Department of Orthopedics, Huashan Hospital Fudan University, Shanghai, 200040, China.
| | - Sheng-Dan Jiang
- Department of Clinic of Spine Center, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200082, China.
| | - Li-Xin Zhu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.
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Elmounedi N, Bahloul W, Kharrat A, Horchani M, Ben Jannet H, Racem Guidara A, Keskes H. Ozone therapy (O 2-O 3) alleviates the progression of early intervertebral disc degeneration via the inhibition of oxidative stress and the interception of the PI3K/Akt/NF-κB signaling pathway. Int Immunopharmacol 2024; 129:111596. [PMID: 38301412 DOI: 10.1016/j.intimp.2024.111596] [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: 12/18/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Abstract
Intervertebral disc degeneration (IDD) stands for the most frequent cause of low back pain. Finding a cure for this disease is an important challenge as current conservative treatments and surgical interventions fail to bring a solution to this disease. Ozone therapy (O2-O3) has yielded outstanding outcomes in intervertebral disc pathology. The ozone's efficacy in the treatment of IDD remains unconfirmed. This study aimed to assess the effectiveness of intradiscal ozone injection on IDD induced in a rat. Effects of ozone therapy on the viability of nucleus pulposus cells were evaluated by CCK-8 assays. Macrophage immunoreactivity was detected by immunohistochemical, the expression of collagen type II was evaluated by western blot, and measurement of oxidative stress parameters was realized. Molecular docking studies were carried out in order to predict the interaction formed between O3 and the target enzymes, on the one hand, O3 with PI3K and, on the other hand, O3 with COX-2. IRM, X-ray, hematoxylin-eosin, and bleu alcian staining were realized to assess the therapeutic impacts of ozone in the puncture-induced rat model of IDD. In vivo, O3 ameliorated the IDD in the early stage of this disease. It was also displayed in molecular docking that O3 might bind to PI3K to suppress the PI3K/Akt/NF-κB signaling pathway. This study's results show that the O3 should be administered at the low grade of IDD and at an early stage because it cannot restore the advanced inflammatory alteration of the IVD. Our results corroborated also that O3 inhibits the progression of IDD via the PI3K/Akt/NF-κB signaling pathway, which supports O3 as an effective therapeutic option for treating IDD.
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Affiliation(s)
- Najah Elmounedi
- Cell Therapy and Experimental Surgery of Musculoskeletal System LR18SP11 Lab, Faculty of Medicine, Sfax, Tunisia.
| | - Walid Bahloul
- Cell Therapy and Experimental Surgery of Musculoskeletal System LR18SP11 Lab, Faculty of Medicine, Sfax, Tunisia; Department of Orthopedics and Traumatology, CHU Habib Bourguiba, Sfax, Tunisia
| | | | - Mabrouk Horchani
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11Es39), Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir, Avenue of Environment, Monastir 5000, Tunisia
| | - Hichem Ben Jannet
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11Es39), Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir, Avenue of Environment, Monastir 5000, Tunisia
| | - Ahmed Racem Guidara
- Cell Therapy and Experimental Surgery of Musculoskeletal System LR18SP11 Lab, Faculty of Medicine, Sfax, Tunisia; Department of Orthopedics and Traumatology, CHU Habib Bourguiba, Sfax, Tunisia
| | - Hassib Keskes
- Cell Therapy and Experimental Surgery of Musculoskeletal System LR18SP11 Lab, Faculty of Medicine, Sfax, Tunisia; Department of Orthopedics and Traumatology, CHU Habib Bourguiba, Sfax, Tunisia
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Fang S, He T, You M, Zhu H, Chen P. Glucocorticoids promote steroid-induced osteonecrosis of the femoral head by down-regulating serum alpha-2-macroglobulin to induce oxidative stress and facilitate SIRT2-mediated BMP2 deacetylation. Free Radic Biol Med 2024; 213:208-221. [PMID: 38142952 DOI: 10.1016/j.freeradbiomed.2023.12.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/07/2023] [Accepted: 12/17/2023] [Indexed: 12/26/2023]
Abstract
Our study investigated the possible molecular mechanism of glucocorticoid in steroid-induced osteonecrosis of the femoral head (SINFH) through regulating serum alpha-2-macroglobulin and SIRT2-mediated BMP2 deacetylation. Essential genes involved in glucocorticoid-induced SINFH were screened by transcriptome sequencing and analyzed by bioinformatics, followed by identifying downstream regulatory targets. Rat bone marrow mesenchymal stem cells were isolated and treated with methylprednisolone (MP) for in vitro cell experiments. Besides, a glucocorticoid-induced rat ONFH was established using the treatment of MP and LPS. ChIP-PCR detected the enrichment of SIRT2 in the promoter region of BMP2, and the deacetylation modification of SIRT2 on BMP2 was determined. Bioinformatics analysis revealed that glucocorticoids may induce ONFH through the SIRT2/BMP2 axis. In vitro cell experiments showed that glucocorticoids up-regulated SIRT2 expression in BMSCs by inducing oxidative stress, thereby promoting cell apoptosis. The up-regulation of SIRT2 expression may be due to the decreased ability of α2 macroglobulin to inhibit oxidative stress, and the addition of NOX protein inhibitor DPI could significantly inhibit SIRT2 expression. SIRT2 could promote histone deacetylation of the BMP2 promoter and inhibit its expression. In vitro cell experiments further indicated that knocking down SIRT2 could protect BMSC from oxidative stress and cell apoptosis induced by glucocorticoids by promoting BMP2 expression. In addition, animal experiments conducted also demonstrated that the knockdown of SIRT2 could improve glucocorticoid-induced ONFH through up-regulating BMP2 expression. Glucocorticoids could induce oxidative stress by down-regulating serum α2M to promote SIRT2-mediated BMP2 deacetylation, leading to ONFH.
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Affiliation(s)
- Shanhong Fang
- Department of Sports Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, PR China; Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, PR China; Fujian Orthopaedics Research Institute, Fuzhou, 350000, PR China; Fujian Orthopedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, 350000, PR China
| | - Tianmin He
- Department of Vascular Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, PR China
| | - Mengqiang You
- Department of Sports Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, PR China; Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, PR China
| | - Huixin Zhu
- Nursing Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, PR China; Nursing Department, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, PR China
| | - Peng Chen
- Department of Sports Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, PR China; Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, PR China; Fujian Orthopaedics Research Institute, Fuzhou, 350000, PR China; Fujian Orthopedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, 350000, PR China.
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18
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Yao D, Chen E, Li Y, Wang K, Liao Z, Li M, Huang L. The role of endoplasmic reticulum stress, mitochondrial dysfunction and their crosstalk in intervertebral disc degeneration. Cell Signal 2024; 114:110986. [PMID: 38007189 DOI: 10.1016/j.cellsig.2023.110986] [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: 09/11/2023] [Revised: 10/30/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
Low back pain (LBP) is a pervasive global health issue. Roughly 40% of LBP cases are attributed to intervertebral disc degeneration (IVDD). While the underlying mechanisms of IVDD remain incompletely understood, it has been confirmed that apoptosis and extracellular matrix (ECM) degradation caused by many factors such as inflammation, oxidative stress, calcium (Ca2+) homeostasis imbalance leads to IVDD. Endoplasmic reticulum (ER) stress and mitochondrial dysfunction are involved in these processes. The initiation of ER stress precipitates cell apoptosis, and is also related to inflammation, levels of oxidative stress, and Ca2+ homeostasis. Additionally, mitochondrial dynamics, antioxidative systems, disruption of Ca2+ homeostasis are closely associated with Reactive Oxygen Species (ROS) and inflammation, promoting cell apoptosis. However, numerous crosstalk exists between the ER and mitochondria, where they interact through inflammatory cytokines, signaling pathways, ROS, or key molecules such as CHOP, forming positive and negative feedback loops. Furthermore, the contact sites between the ER and mitochondria, known as mitochondria-associated membranes (MAM), facilitate direct signal transduction such as Ca2+ transfer. However, the current attention towards this issue is insufficient. Therefore, this review summarizes the impacts of ER stress and mitochondrial dysfunction on IVDD, along with the possibly potential crosstalk between them, aiming to unveil novel avenues for IVDD intervention.
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Affiliation(s)
- Dengbo Yao
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.; Department of Orthopedics Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Enming Chen
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Yuxi Li
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Kun Wang
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.; Department of Orthopedics Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Zhuangyao Liao
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Ming Li
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Lin Huang
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China..
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19
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Yang S, Jing S, Wang S, Jia F. From drugs to biomaterials: a review of emerging therapeutic strategies for intervertebral disc inflammation. Front Cell Infect Microbiol 2024; 14:1303645. [PMID: 38352058 PMCID: PMC10861683 DOI: 10.3389/fcimb.2024.1303645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/12/2024] [Indexed: 02/16/2024] Open
Abstract
Chronic low back pain (LBP) is an increasingly prevalent issue, especially among aging populations. A major underlying cause of LBP is intervertebral disc degeneration (IDD), often triggered by intervertebral disc (IVD) inflammation. Inflammation of the IVD is divided into Septic and Aseptic inflammation. Conservative therapy and surgical treatment often fail to address the root cause of IDD. Recent advances in the treatment of IVD infection and inflammation range from antibiotics and small-molecule drugs to cellular therapies, biological agents, and innovative biomaterials. This review sheds light on the complex mechanisms of IVD inflammation and physiological and biochemical processes of IDD. Furthermore, it provides an overview of recent research developments in this area, intending to identify novel therapeutic targets and guide future clinical strategies for effectively treating IVD-related conditions.
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Affiliation(s)
- Shuhan Yang
- Department of Orthopedics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Shaoze Jing
- Department of Orthopedics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Shanxi Wang
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Fajing Jia
- Department of General Practice, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
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20
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Yang W, Li K, Pan Q, Huang W, Xiao Y, Lin H, Liu S, Chen X, Lv X, Feng S, Shao Z, Qing X, Peng Y. An Engineered Bionic Nanoparticle Sponge as a Cytokine Trap and Reactive Oxygen Species Scavenger to Relieve Disc Degeneration and Discogenic Pain. ACS NANO 2024; 18:3053-3072. [PMID: 38237054 PMCID: PMC10832058 DOI: 10.1021/acsnano.3c08097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024]
Abstract
The progressive worsening of disc degeneration and related nonspecific back pain are prominent clinical issues that cause a tremendous economic burden. Activation of reactive oxygen species (ROS) related inflammation is a primary pathophysiologic change in degenerative disc lesions. This pathological state is associated with M1 macrophages, apoptosis of nucleus pulposus cells (NPC), and the ingrowth of pain-related sensory nerves. To address the pathological issues of disc degeneration and discogenic pain, we developed MnO2@TMNP, a nanomaterial that encapsulated MnO2 nanoparticles with a TrkA-overexpressed macrophage cell membrane (TMNP). Consequently, this engineered nanomaterial showed high efficiency in binding various inflammatory factors and nerve growth factors, which inhibited inflammation-induced NPC apoptosis, matrix degradation, and nerve ingrowth. Furthermore, the macrophage cell membrane provided specific targeting to macrophages for the delivery of MnO2 nanoparticles. MnO2 nanoparticles in macrophages effectively scavenged intracellular ROS and prevented M1 polarization. Supportively, we found that MnO2@TMNP prevented disc inflammation and promoted matrix regeneration, leading to downregulated disc degenerative grades in the rat injured disc model. Both mechanical and thermal hyperalgesia were alleviated by MnO2@TMNP, which was attributed to the reduced calcitonin gene-related peptide (CGRP) and substance P expression in the dorsal root ganglion and the downregulated Glial Fibrillary Acidic Protein (GFAP) and Fos Proto-Oncogene (c-FOS) signaling in the spinal cord. We confirmed that the MnO2@TMNP nanomaterial alleviated the inflammatory immune microenvironment of intervertebral discs and the progression of disc degeneration, resulting in relieved discogenic pain.
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Affiliation(s)
- Wenbo Yang
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Kanglu Li
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Qing Pan
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Wei Huang
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Yan Xiao
- Department
of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Hui Lin
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Sheng Liu
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Xuanzuo Chen
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Xiao Lv
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Shiqing Feng
- The
Second Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, People’s Republic
of China
- Department
of Orthopaedics, Tianjin Medical University General Hospital, Tianjin
Medical University, International Science and Technology Cooperation
Base of Spinal Cord Injury, Tianjin Key
Laboratory of Spine and Spinal Cord, Tianjin 300052, People’s Republic of China
- Department
of Orthopaedics, Qilu Hospital of Shandong University, Shandong University
Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo
College of Medicine, Shandong University, Jinan, Shandong 250012, People’s
Republic of China
| | - Zengwu Shao
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Xiangcheng Qing
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
| | - Yizhong Peng
- Department
of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People’s Republic of China
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21
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Zhang X, Zhang Z, Zou X, Wang Y, Qi J, Han S, Xin J, Zheng Z, Wei L, Zhang T, Zhang S. Unraveling the mechanisms of intervertebral disc degeneration: an exploration of the p38 MAPK signaling pathway. Front Cell Dev Biol 2024; 11:1324561. [PMID: 38313000 PMCID: PMC10834758 DOI: 10.3389/fcell.2023.1324561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/28/2023] [Indexed: 02/06/2024] Open
Abstract
Intervertebral disc (IVD) degeneration (IDD) is a worldwide spinal degenerative disease. Low back pain (LBP) is frequently caused by a variety of conditions brought on by IDD, including IVD herniation and spinal stenosis, etc. These conditions bring substantial physical and psychological pressure and economic burden to patients. IDD is closely tied with the structural or functional changes of the IVD tissue and can be caused by various complex factors like senescence, genetics, and trauma. The IVD dysfunction and structural changes can result from extracellular matrix (ECM) degradation, differentiation, inflammation, oxidative stress, mechanical stress, and senescence of IVD cells. At present, the treatment of IDD is basically to alleviate the symptoms, but not from the pathophysiological changes of IVD. Interestingly, the p38 mitogen-activated protein kinase (p38 MAPK) signaling pathway is involved in many processes of IDD, including inflammation, ECM degradation, apoptosis, senescence, proliferation, oxidative stress, and autophagy. These activities in degenerated IVD tissue are closely relevant to the development trend of IDD. Hence, the p38 MAPK signaling pathway may be a fitting curative target for IDD. In order to better understand the pathophysiological alterations of the intervertebral disc tissue during IDD and offer potential paths for targeted treatments for intervertebral disc degeneration, this article reviews the purpose of the p38 MAPK signaling pathway in IDD.
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Affiliation(s)
- Xingmin Zhang
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Zilin Zhang
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Xiaosong Zou
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Yongjie Wang
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Jinwei Qi
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Song Han
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Jingguo Xin
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Zhi Zheng
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Lin Wei
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Tianhui Zhang
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
| | - Shaokun Zhang
- Department of Spine Surgery, Center of Orthopedics, First Hospital of Jilin University, Changchun, China
- Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
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22
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Xiaohu J, Su G, Yuying Z, Simin C, Wenyan W, Jingjing Y, Meiqiu Y, Jing L, Jie S, Suhong C, Guiyuan L. Traditional Chinese Medicine formula Wubi Shanyao Pills protects against reproductive aging by activating SIRT1/3 to reduce apoptosis. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116976. [PMID: 37524234 DOI: 10.1016/j.jep.2023.116976] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/20/2023] [Accepted: 07/27/2023] [Indexed: 08/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The study of male reproductive aging and its associated concerns holds significant importance within the realm of health issues affecting the elderly population. Wubi Shanyao Pills (WSP), a traditional Chinese patent medicine originating from the Tang Dynasty, has been recognized for its ability to enhance male sexual functions while also tonifying the kidney and spleen. Nevertheless, the precise effects and underlying mechanisms through which WSP ameliorates the decline in reproductive function among aging men remain uncertain. AIM OF THE STUDY This study elucidated the distinctive impacts of WSP on ameliorating the decline in reproductive function caused by natural aging, as well as its underlying mechanisms. MATERIALS AND METHODS Initially, male mice at the age of 15 months were administered WSP orally at doses of 0.375, 0.75, and 1.50 g/kg per day for a duration of 8 consecutive weeks. The impact of WSP on age-related manifestations in naturally aging mice was assessed based on their behavioral performance. The renal function of the mice was evaluated by measuring serum biochemical indicators, including Creatinine (CR), Uric acid (UA), and Blood urea nitrogen (BUN). Additionally, Superoxide dismutase (SOD) and Malonaldehyde (MDA) levels in renal tissue were determined using applied chemistry methods. Then assessed the levels of Nitric oxide (NO), Total nitric oxide synthase (T-NOS), Guanosine cyclase (GC), and Cyclic guanosine monophosphate (cGMP) in the penile tissue, as well as the expression of Endothelial nitric oxide synthase (eNOS) and Guanylate Cyclase Activator (GUCA) protein, in order to investigate the erectile function of the penis. Additionally, the quality of epididymal sperm was examined using an electron microscope. Furthermore, the serum sex hormone level and related protein expression were determined through the utilization of enzyme-linked immunosorbent assay and immunohistochemistry techniques. Pathological alterations and the ultrastructure of the testis were investigated using hematoxylin-eosin staining and transmission electron microscopy. Subsequently, the apoptosis of spermatogenic cells in the testes was assessed employing TUNEL, immunofluorescence, western blotting, and quantitative real-time polymerase chain reaction. RESULTS The administration of WSP has been found to enhance the behavioral performance and sexual behavior in aged mice. It's also could increase in serum levels of CR, UA, and BUN, as well as the elevation of SOD activity in kidney tissue, which subsequently leads to a reduction in MDA levels and an improvement in the structural damage caused by aging in the kidney tissue. Consequently, the renal function is enhanced. Additionally, WSP has been observed to elevate the levels of NO, T-NOS, GC, and cGMP in penile tissue, along with an increase in eNOS and GUCA protein expression, indicating an improvement in penile erectile function. The administration of WSP resulted in a decrease in the occurrence of programmed cell death in testicular germ cells, leading to an enhancement in sperm quality and the overall function of testicular spermatogenesis. This improvement can be attributed to the modulation of hormone levels and the regulation of SIRT1/3, p53, FOXO3, Bax, and Caspase-3 expression. CONCLUSION Collectively, our findings indicate that the administration of WSP has the potential to impede the occurrence of programmed cell death in testicular cells by modulating the expression of SIRT1/3 and subsequent genes associated with apoptosis. Consequently, this regulatory mechanism facilitates the proliferation of testicular cells and sustains the spermatogenic function of the testes. Consequently, by modulating the levels of sexual hormones in naturally aging mice, WSP ultimately enhances the quality of sperm and reproductive function. Concurrently, it also ameliorates age-related behavioral changes, renal function, and erectile function.
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Affiliation(s)
- Jin Xiaohu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Gao Su
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Zhong Yuying
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Chen Simin
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Wu Wenyan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Yu Jingjing
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Yan Meiqiu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Liu Jing
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China
| | - Su Jie
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China.
| | - Chen Suhong
- Zhejiang University of Technology, Zhejiang, Hangzhou, 310014, China.
| | - Lv Guiyuan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310053, China.
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23
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Huang C, Zou K, Wang Y, Tang K, Wu Y. Esculetin Alleviates IL-1β-Evoked Nucleus Pulposus Cell Death, Extracellular Matrix Remodeling, and Inflammation by Activating Nrf2/HO-1/NF-kb. ACS OMEGA 2024; 9:817-827. [PMID: 38222570 PMCID: PMC10785627 DOI: 10.1021/acsomega.3c06771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/21/2023] [Accepted: 11/29/2023] [Indexed: 01/16/2024]
Abstract
Inflammation, extracellular matrix metabolic dysfunction, and oxidative stress are key pathogenic characteristics of intervertebral disk degeneration (IVDD), a major pathogenic cause of low back pain. Esculetin possesses anti-injury, anti-inflammation, and antinociceptive properties. This study aimed to explore its role in IVDD. In this research, esculetin exhibited little cytotoxicity to human nucleus pulposus cells (NPCs). Moreover, esculetin increased cell viability under IL-1β stimulation but attenuated IL-1β-induced cell apoptosis and caspase-3 activity. Furthermore, IL-1β-evoked increases in intracellular reactive oxygen species and malondialdehyde (MDA) levels, and decreases in superoxide dismutase (SOD) activity were reversed after esculetin treatment, indicating the antioxidative stress efficacy of esculetin. Esculetin alleviated the inhibitory effects of IL-1β on the transcription and protein expression of anabolic biomarkers (collagen II and aggrecan), accompanied by decreases in expression and release of catabolic biomarkers MMP-3 and MMP-13 from NPCs. Moreover, IL-1β exposure enhanced the expression levels of the inflammatory mediator nitric oxide and inflammatory cytokine IL-6 and TNF-α, which were overturned after esculetin treatment. Additionally, esculetin activated the nuclear factor-erythroid 2-related factor 2 (Nrf2)/heme oxygenase 1 (HO-1) to inhibit the activation of nuclear factor κB (NF-κB) signaling in NPCs. Importantly, suppression of Nrf2 signaling reversed the protective efficacy of esculetin against IL-1β-mediated oxidative injury, matrix metabolism disruption, and inflammatory response in NPCs. Together, esculetin may alleviate IL-1β-induced dysfunction in NPCs by regulating the Nrf2/HO-1/NF-kb signaling, indicating its potential as a promising therapeutic agent against IVDD.
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Affiliation(s)
- Chunhui Huang
- Department
of Spinal Surgery, Longyan First Affiliated
Hospital of Fujian Medical University, No. 105, Jiuyi North Road, Xin
Luo District, Longyan 364000, P. R. China
| | - Kaiwei Zou
- Department
of Spinal Surgery, Longyan First Affiliated
Hospital of Fujian Medical University, No. 105, Jiuyi North Road, Xin
Luo District, Longyan 364000, P. R. China
| | - Yizhang Wang
- Department
of Cardiology, Longyan First Affiliated
Hospital of Fujian Medical University, No. 105, Jiuyi North Road, Xin
Luo District, Longyan 364000, P. R. China
| | - Kai Tang
- Department
of Spinal Surgery, Longyan First Affiliated
Hospital of Fujian Medical University, No. 105, Jiuyi North Road, Xin
Luo District, Longyan 364000, P. R. China
| | - Yiqi Wu
- Department
of Spinal Surgery, Longyan First Affiliated
Hospital of Fujian Medical University, No. 105, Jiuyi North Road, Xin
Luo District, Longyan 364000, P. R. China
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24
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LeFort KR, Rungratanawanich W, Song BJ. Melatonin Prevents Alcohol- and Metabolic Dysfunction- Associated Steatotic Liver Disease by Mitigating Gut Dysbiosis, Intestinal Barrier Dysfunction, and Endotoxemia. Antioxidants (Basel) 2023; 13:43. [PMID: 38247468 PMCID: PMC10812487 DOI: 10.3390/antiox13010043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
Melatonin (MT) has often been used to support good sleep quality, especially during the COVID-19 pandemic, as many have suffered from stress-related disrupted sleep patterns. It is less known that MT is an antioxidant, anti-inflammatory compound, and modulator of gut barrier dysfunction, which plays a significant role in many disease states. Furthermore, MT is produced at 400-500 times greater concentrations in intestinal enterochromaffin cells, supporting the role of MT in maintaining the functions of the intestines and gut-organ axes. Given this information, the focus of this article is to review the functions of MT and the molecular mechanisms by which it prevents alcohol-associated liver disease (ALD) and metabolic dysfunction-associated steatotic liver disease (MASLD), including its metabolism and interactions with mitochondria to exert its antioxidant and anti-inflammatory activities in the gut-liver axis. We detail various mechanisms by which MT acts as an antioxidant, anti-inflammatory compound, and modulator of intestinal barrier function to prevent the progression of ALD and MASLD via the gut-liver axis, with a focus on how these conditions are modeled in animal studies. Using the mechanisms of MT prevention and animal studies described, we suggest behavioral modifications and several exogenous sources of MT, including food and supplements. Further clinical research should be performed to develop the field of MT in preventing the progression of liver diseases via the gut-liver axis, so we mention a few considerations regarding MT supplementation in the context of clinical trials in order to advance this field of research.
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Affiliation(s)
- Karli R. LeFort
- Section of Molecular Pharmacology and Toxicology, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892, USA;
| | | | - Byoung-Joon Song
- Section of Molecular Pharmacology and Toxicology, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892, USA;
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25
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Xu K, Li J, Wen R, Chang B, Cheng Y, Yi X. Role of SIRT3 in bone homeostasis and its application in preventing and treating bone diseases. Front Pharmacol 2023; 14:1248507. [PMID: 38192409 PMCID: PMC10773770 DOI: 10.3389/fphar.2023.1248507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/11/2023] [Indexed: 01/10/2024] Open
Abstract
Bone homeostasis refers to the balance between osteoblast-mediated bone formation and osteoclast-mediated bone resorption and the maintenance of stable bone mass. SIRT3 is a class of mitochondrial protein deacetylase that influences various mitochondrial functions and is involved in the mechanisms underlying resistance to aging; regulation of bone marrow mesenchymal stem cells, osteoblasts, and osteoclasts; and development of osteoporosis, osteoarthritis, and other bone diseases. Moreover, exercise affects bones through SIRT3. Thus, studies on SIRT3 may provide insights for the treatment of bone diseases. Although SIRT3 can exert multiple effects on bone, the specific mechanism by which it regulates bone homeostasis remains unclear. By evaluating the relevant literature, this review discusses the structure and function of SIRT3, reveals the role and associated mechanisms of SIRT3 in regulating bone homeostasis and mediating bone health during exercise, and highlights the potential pharmacological value of SIRT3 in treating bone diseases.
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Affiliation(s)
- Ke Xu
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Jing Li
- School of Physical Education, Liaoning Normal University, Dalian, China
| | - Ruiming Wen
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Bo Chang
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Yang Cheng
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Xuejie Yi
- School of Sports Health, Shenyang Sport University, Shenyang, China
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26
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Jiang W, Glaeser JD, Kaneda G, Sheyn J, Wechsler JT, Stephan S, Salehi K, Chan JL, Tawackoli W, Avalos P, Johnson C, Castaneda C, Kanim LEA, Tanasansomboon T, Burda JE, Shelest O, Yameen H, Perry TG, Kropf M, Cuellar JM, Seliktar D, Bae HW, Stone LS, Sheyn D. Intervertebral disc human nucleus pulposus cells associated with back pain trigger neurite outgrowth in vitro and pain behaviors in rats. Sci Transl Med 2023; 15:eadg7020. [PMID: 38055799 DOI: 10.1126/scitranslmed.adg7020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 10/06/2023] [Indexed: 12/08/2023]
Abstract
Low back pain (LBP) is often associated with the degeneration of human intervertebral discs (IVDs). However, the pain-inducing mechanism in degenerating discs remains to be elucidated. Here, we identified a subtype of locally residing human nucleus pulposus cells (NPCs), generated by certain conditions in degenerating discs, that was associated with the onset of discogenic back pain. Single-cell transcriptomic analysis of human tissues showed a strong correlation between a specific cell subtype and the pain condition associated with the human degenerated disc, suggesting that they are pain-triggering. The application of IVD degeneration-associated exogenous stimuli to healthy NPCs in vitro recreated a pain-associated phenotype. These stimulated NPCs activated functional human iPSC-derived sensory neuron responses in an in vitro organ-chip model. Injection of stimulated NPCs into the healthy rat IVD induced local inflammatory responses and increased cold sensitivity and mechanical hypersensitivity. Our findings reveal a previously uncharacterized pain-inducing mechanism mediated by NPCs in degenerating IVDs. These findings could aid in the development of NPC-targeted therapeutic strategies for the clinically unmet need to attenuate discogenic LBP.
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Affiliation(s)
- Wensen Jiang
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Juliane D Glaeser
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Giselle Kaneda
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Julia Sheyn
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Jacob T Wechsler
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Stephen Stephan
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Khosrowdad Salehi
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Julie L Chan
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Wafa Tawackoli
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Pablo Avalos
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Christopher Johnson
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Chloe Castaneda
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Linda E A Kanim
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Teerachat Tanasansomboon
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Center of Excellence in Biomechanics and Innovative Spine Surgery, Department of Orthopedics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Joshua E Burda
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Oksana Shelest
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Haneen Yameen
- Department of Biomedical Engineering, Israeli Institute of Technology Technion, Haifa 3200003, Israel
| | - Tiffany G Perry
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Michael Kropf
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Jason M Cuellar
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Dror Seliktar
- Department of Biomedical Engineering, Israeli Institute of Technology Technion, Haifa 3200003, Israel
| | - Hyun W Bae
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Laura S Stone
- Department of Biomedical Engineering, Israeli Institute of Technology Technion, Haifa 3200003, Israel
| | - Dmitriy Sheyn
- Orthopaedic Stem Cell Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
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27
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Wu S, Liu S, Huang R, Zhou Y, Zou Y, Yang W, Zhang J. Adiponectin inhibits LPS-induced nucleus pulposus cell pyroptosis through the miR-135a-5p/TXNIP signaling pathway. Aging (Albany NY) 2023; 15:13680-13692. [PMID: 38048212 PMCID: PMC10756118 DOI: 10.18632/aging.205226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/15/2023] [Indexed: 12/06/2023]
Abstract
Pyroptosis, a newly discovered programmed cell death process, is characterized by NLRP3 inflammasome activation and pro-inflammatory mediator release. Nucleus pulposus (NP) cell pyroptosis is an important cause of intervertebral disc degeneration (IDD). Adiponectin (APN) is an adipokine and has an anti-inflammatory effect. However, whether and how APN protects against NP cell pyroptosis remains unexplored. Our results showed that human degenerated NP tissue displayed a significant increase in the protein levels of NLRP3, caspase-1 and GSDMD-N. APN expression was down-regulated in human degenerated NP tissue and NP cells challenged with lipopolysaccharide (LPS). Lentivirus-mediated overexpression of APN increased miR-135a-5p levels, decreased thioredoxin-interacting protein (TXNIP) expression and its interaction with NLRP3, and inhibited pyroptosis in human NP cells stimulated with LPS. TXNIP was identified as a direct target of miR-135a-5p. The inhibitory effects of APN on pyroptosis were reversed by pretreatment with miR-135a-5p inhibitor or lentiviral vector expressing TXNIP in LPS-treated human NP cells. In summary, these data suggest that APN restrains LPS-induced pyroptosis through the miR-135a-5p/TXNIP signaling pathway in human NP cells. Increasing APN levels could be a new approach to retard IDD.
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Affiliation(s)
- Shuang Wu
- The First Affiliated Hospital, Orthopedic Center, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Shida Liu
- The First Affiliated Hospital, Orthopedic Center, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Rui Huang
- The First Affiliated Hospital, Orthopedic Center, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Youbing Zhou
- The First Affiliated Hospital, Orthopedic Center, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Yongcheng Zou
- The First Affiliated Hospital, Orthopedic Center, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Wei Yang
- The First Affiliated Hospital, Orthopedic Center, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
| | - Jian Zhang
- The First Affiliated Hospital, Orthopedic Center, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China
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28
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Song C, Xu Y, Peng Q, Chen R, Zhou D, Cheng K, Cai W, Liu T, Huang C, Fu Z, Wei C, Liu Z. Mitochondrial dysfunction: a new molecular mechanism of intervertebral disc degeneration. Inflamm Res 2023; 72:2249-2260. [PMID: 37925665 DOI: 10.1007/s00011-023-01813-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/22/2023] [Accepted: 10/25/2023] [Indexed: 11/07/2023] Open
Abstract
OBJECTIVE Intervertebral disc degeneration (IVDD) is a chronic degenerative orthopedic illness that causes lower back pain as a typical clinical symptom, severely reducing patients' quality of life and work efficiency, and imposing a significant economic burden on society. IVDD is defined by rapid extracellular matrix breakdown, nucleus pulposus cell loss, and an inflammatory response. It is intimately related to the malfunction or loss of myeloid cells among them. Many mechanisms have been implicated in the development of IVDD, including inflammatory factors, oxidative stress, apoptosis, cellular autophagy, and mitochondrial dysfunction. In recent years, mitochondrial dysfunction has become a hot research topic in age-related diseases. As the main source of adenosine triphosphate (ATP) in myeloid cells, mitochondria are essential for maintaining myeloid cell survival and physiological functions. METHODS We searched the PUBMED database with the search term "intervertebral disc degeneration and mitochondrial dysfunction" and obtained 82 articles, and after reading the abstracts and eliminating 30 irrelevant articles, we finally obtained 52 usable articles. RESULTS Through a review of the literature, it was discovered that IVDD and cellular mitochondrial dysfunction are also linked. Mitochondrial dysfunction contributes to the advancement of IVDD by influencing a number of pathophysiologic processes such as mitochondrial fission/fusion, mitochondrial autophagy, cellular senescence, and cell death. CONCLUSION We examine the molecular mechanisms of IVDD-associated mitochondrial dysfunction and present novel directions for quality management of mitochondrial dysfunction as a treatment approach to IVDD.
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Affiliation(s)
- Chao Song
- Department of Orthopedics and Traumatology (Trauma and Bone-setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Longmatan District, No.182, Chunhui Road, Luzhou, 646000, Sichuan Province, China
| | - Yulin Xu
- Department of Orthopedics, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Qinghua Peng
- College of Integrative Chinese and Western Medicine, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Rui Chen
- Department of Orthopedics and Traumatology (Trauma and Bone-setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Longmatan District, No.182, Chunhui Road, Luzhou, 646000, Sichuan Province, China
| | - Daqian Zhou
- Department of Orthopedics and Traumatology (Trauma and Bone-setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Longmatan District, No.182, Chunhui Road, Luzhou, 646000, Sichuan Province, China
| | - Kang Cheng
- Department of Orthopedics and Traumatology (Trauma and Bone-setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Longmatan District, No.182, Chunhui Road, Luzhou, 646000, Sichuan Province, China
| | - Weiye Cai
- Department of Orthopedics and Traumatology (Trauma and Bone-setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Longmatan District, No.182, Chunhui Road, Luzhou, 646000, Sichuan Province, China
| | - Tao Liu
- Department of Orthopedics and Traumatology (Trauma and Bone-setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Longmatan District, No.182, Chunhui Road, Luzhou, 646000, Sichuan Province, China
| | - Chenyi Huang
- Department of Orthopedics and Traumatology (Trauma and Bone-setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Longmatan District, No.182, Chunhui Road, Luzhou, 646000, Sichuan Province, China.
| | - Zhijiang Fu
- Department of Orthopedics and Traumatology (Trauma and Bone-setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Longmatan District, No.182, Chunhui Road, Luzhou, 646000, Sichuan Province, China.
| | - Cong Wei
- Department of Clinical Laboratory, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan Province, China.
| | - Zongchao Liu
- Department of Orthopedics and Traumatology (Trauma and Bone-setting), Laboratory of Integrated Chinese and Western Medicine for Orthopedic and Traumatic Diseases Prevention and Treatment, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Longmatan District, No.182, Chunhui Road, Luzhou, 646000, Sichuan Province, China.
- Luzhou Longmatan District People's Hospital, Luzhou, 646000, Sichuan Province, China.
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29
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Wang H, Liu X, Yang H, Jing X, Wang W, Liu X, Zhang B, Liu X, Shao Y, Cui X. Activation of the Nrf-2 pathway by pinocembrin safeguards vertebral endplate chondrocytes against apoptosis and degeneration caused by oxidative stress. Life Sci 2023; 333:122162. [PMID: 37820754 DOI: 10.1016/j.lfs.2023.122162] [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: 08/17/2023] [Revised: 09/28/2023] [Accepted: 10/06/2023] [Indexed: 10/13/2023]
Abstract
AIM The occurrence and progression of intervertebral disc degeneration (IDD) are significantly influenced by the cartilaginous endplate (CEP). Pinocembrin (PIN), a type of flavonoid present in propolis and botanicals, demonstrates both antioxidant and anti-inflammatory characteristics, which could potentially be utilized in management. Therefore, it is crucial to investigate how PIN protects against CEP degeneration and its mechanisms, offering valuable insights for IDD therapy. MATERIALS AND METHODS To investigate the protective impact of PIN in vivo, we created the IDD mouse model through bilateral facet joint transection. In vitro, an IDD pathological environment was mimicked by applying TBHP to treat endplate chondrocytes. KEY FINDINGS In vivo, compared with the IDD group, the mouse in the PIN group effectively mitigates IDD progression and CEP calcification. In vitro, the activation of the Nrf-2 pathway improves the process of Parkin-mediated autophagy in mitochondria and decreases ferroptosis in chondrocytes. This enhancement promotes cell survival by addressing the imbalance of redox during pathological conditions related to IDD. Knocking down Nrf-2 with siRNA fails to provide protection to endplate chondrocytes against apoptosis and degeneration. SIGNIFICANCE The Nrf-2-mediated activation of mitochondrial autophagy and suppression of ferroptosis play a crucial role in safeguarding against oxidative stress-induced degeneration and calcification of CEP through the protective function of PIN. To sum up, this research offers detailed explanations about how PIN can protect against apoptosis and calcification in CEP, providing valuable information about the development of IDD and suggesting possible treatment approaches.
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Affiliation(s)
- Heran Wang
- Department of Spine Surgery, Shandong Provincial Hospital, Shandong University, Jinan 250000, China.
| | - Xiaoyang Liu
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China.
| | - Heng Yang
- Department of Spine Surgery, Shandong Provincial Hospital, Shandong University, Jinan 250000, China.
| | - Xingzhi Jing
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China.
| | - Wenchao Wang
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China.
| | - Xiaodong Liu
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China.
| | - Bofei Zhang
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China.
| | - Xin Liu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
| | - Yuandong Shao
- Department of Spine Surgery, Shandong Provincial Hospital, Shandong University, Jinan 250000, China; Department of Spine Surgery, Binzhou People's Hospital, Binzhou 256600, China.
| | - Xingang Cui
- Department of Spine Surgery, Shandong Provincial Hospital, Shandong University, Jinan 250000, China.
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Maiese K. Cornerstone Cellular Pathways for Metabolic Disorders and Diabetes Mellitus: Non-Coding RNAs, Wnt Signaling, and AMPK. Cells 2023; 12:2595. [PMID: 37998330 PMCID: PMC10670256 DOI: 10.3390/cells12222595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
Metabolic disorders and diabetes (DM) impact more than five hundred million individuals throughout the world and are insidious in onset, chronic in nature, and yield significant disability and death. Current therapies that address nutritional status, weight management, and pharmacological options may delay disability but cannot alter disease course or functional organ loss, such as dementia and degeneration of systemic bodily functions. Underlying these challenges are the onset of aging disorders associated with increased lifespan, telomere dysfunction, and oxidative stress generation that lead to multi-system dysfunction. These significant hurdles point to the urgent need to address underlying disease mechanisms with innovative applications. New treatment strategies involve non-coding RNA pathways with microRNAs (miRNAs) and circular ribonucleic acids (circRNAs), Wnt signaling, and Wnt1 inducible signaling pathway protein 1 (WISP1) that are dependent upon programmed cell death pathways, cellular metabolic pathways with AMP-activated protein kinase (AMPK) and nicotinamide, and growth factor applications. Non-coding RNAs, Wnt signaling, and AMPK are cornerstone mechanisms for overseeing complex metabolic pathways that offer innovative treatment avenues for metabolic disease and DM but will necessitate continued appreciation of the ability of each of these cellular mechanisms to independently and in unison influence clinical outcome.
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Affiliation(s)
- Kenneth Maiese
- Cellular and Molecular Signaling, New York, NY 10022, USA
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31
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Maiese K. The impact of aging and oxidative stress in metabolic and nervous system disorders: programmed cell death and molecular signal transduction crosstalk. Front Immunol 2023; 14:1273570. [PMID: 38022638 PMCID: PMC10663950 DOI: 10.3389/fimmu.2023.1273570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Life expectancy is increasing throughout the world and coincides with a rise in non-communicable diseases (NCDs), especially for metabolic disease that includes diabetes mellitus (DM) and neurodegenerative disorders. The debilitating effects of metabolic disorders influence the entire body and significantly affect the nervous system impacting greater than one billion people with disability in the peripheral nervous system as well as with cognitive loss, now the seventh leading cause of death worldwide. Metabolic disorders, such as DM, and neurologic disease remain a significant challenge for the treatment and care of individuals since present therapies may limit symptoms but do not halt overall disease progression. These clinical challenges to address the interplay between metabolic and neurodegenerative disorders warrant innovative strategies that can focus upon the underlying mechanisms of aging-related disorders, oxidative stress, cell senescence, and cell death. Programmed cell death pathways that involve autophagy, apoptosis, ferroptosis, and pyroptosis can play a critical role in metabolic and neurodegenerative disorders and oversee processes that include insulin resistance, β-cell function, mitochondrial integrity, reactive oxygen species release, and inflammatory cell activation. The silent mating type information regulation 2 homolog 1 (Saccharomyces cerevisiae) (SIRT1), AMP activated protein kinase (AMPK), and Wnt1 inducible signaling pathway protein 1 (WISP1) are novel targets that can oversee programmed cell death pathways tied to β-nicotinamide adenine dinucleotide (NAD+), nicotinamide, apolipoprotein E (APOE), severe acute respiratory syndrome (SARS-CoV-2) exposure with coronavirus disease 2019 (COVID-19), and trophic factors, such as erythropoietin (EPO). The pathways of programmed cell death, SIRT1, AMPK, and WISP1 offer exciting prospects for maintaining metabolic homeostasis and nervous system function that can be compromised during aging-related disorders and lead to cognitive impairment, but these pathways have dual roles in determining the ultimate fate of cells and organ systems that warrant thoughtful insight into complex autofeedback mechanisms.
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Affiliation(s)
- Kenneth Maiese
- Innovation and Commercialization, National Institutes of Health, Bethesda, MD, United States
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32
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Karchevskaya AE, Poluektov YM, Korolishin VA. Understanding Intervertebral Disc Degeneration: Background Factors and the Role of Initial Injury. Biomedicines 2023; 11:2714. [PMID: 37893088 PMCID: PMC10604877 DOI: 10.3390/biomedicines11102714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
The etiology of intervertebral disc degeneration (IVDD) is complex and multifactorial, and it is still not fully understood. A better understanding of the pathogenesis of IVDD will help to improve treatment regimens and avoid unnecessary surgical aggression. In order to summarize recent research data on IVDD pathogenesis, including genetic and immune factors, a literature review was conducted. The pathogenesis of IVDD is a complex multifactorial process without an evident starting point. There are extensive data on the role of the different genetic factors affecting the course of the disease, such as mutations in structural proteins and enzymes involved in the immune response. However, these factors alone are not sufficient for the development of the disease. Nevertheless, like mechanical damage, they can also be considered risk factors for IVDD. In conclusion, currently, there is no consensus on a single concept for the pathogenesis of IVDD. We consider the intervertebral disc autoimmune damage hypothesis to be the most promising hypothesis for clinicians, because it can be extrapolated to all populations and does not counteract other factors. The genetic factors currently known do not allow for building effective predictive models; however, they can be used to stratify the risks of individual populations.
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Affiliation(s)
- Anna E. Karchevskaya
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 5A Butlerova Str., 117485 Moscow, Russia;
- Medical Faculty, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), 8-2 Trubetskaya Str., 119991 Moscow, Russia
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str. 32, 119334 Moscow, Russia
| | - Yuri M. Poluektov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str. 32, 119334 Moscow, Russia
- Department of Spinal Surgery, Burdenko Neurosurgical Institute, 4th-Tverskaya-Yamskaya Str. 16, 125047 Moscow, Russia
| | - Vasiliy A. Korolishin
- Russian Medical Academy of Postgraduate Education Studies, 2/1 Barrikadnaya Str., Building 1, 125993 Moscow, Russia;
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Guo Y, Zhou Y, Zhao H, Hu T, Wu D. Serum antioxidant enzymes in spinal stenosis patients with lumbar disc herniation: correlation with degeneration severity and spinal fusion rate. BMC Musculoskelet Disord 2023; 24:782. [PMID: 37789309 PMCID: PMC10546697 DOI: 10.1186/s12891-023-06907-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 09/22/2023] [Indexed: 10/05/2023] Open
Abstract
OBJECTIVE To determine whether superoxide dismutase (SOD) and glutathione reductase (GR) correlated with the intervertebral disc degeneration (IDD) severity and the postoperative spinal fusion rate in lumbar spinal stenosis patients accompanied with lumbar disc herniation. METHODS This retrospective study investigated 310 cases of posterior lumbar decompression and fusion. The cumulative grade was calculated by adding the pfirrmann grades of all the lumbar discs. Subjects were grouped based on the median cumulative grade. Logistic regression was used to determine the associations among the demographical, clinical, and laboratory indexes and severe degeneration and fusion. The receiver operating characteristic (ROC) curve was performed to measure model discrimination, and Hosmer-Lemeshow (H-L) test was used to measure calibration. RESULTS SOD and GR levels were significantly lower in the severe degeneration group (cumulative grade > 18) than in the mild to moderate degeneration group (cumulative grade ≤ 18). Furthermore, the SOD and GR concentrations of the fusion group were significantly higher than that of the non-fusion group (p < 0.001 and p = 0.006). The multivariate binary logistic models revealed that SOD and GR were independently influencing factors of the severe degeneration (OR: 0.966, 95%CI: 0.950-0.982, and OR: 0.946, 95%CI: 0.915-0.978, respectively) and non-fusion (OR: 0.962; 95% CI: 0.947-0.978; OR: 0.963; 95% CI: 0.933-0.994). The models showed excellent discrimination and calibration. Trend analysis indicated that the levels of SOD and GR tended to decrease with increasing severity (p for trend < 0.001 and 0.003). In addition, it also revealed that SOD provided protection from non-fusion in a concentration-dependent manner (p for trend < 0.001). However, GR concentration-dependent effects were not apparent (p for trend = 0.301). CONCLUSION High serum SOD and GR levels are associated with a better fusion prognosis and a relief in degeneration severity.
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Affiliation(s)
- Youfeng Guo
- Department of spine surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Yu Zhou
- Department of medical genetics, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Haihong Zhao
- Department of spine surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Tao Hu
- Department of spine surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, China.
| | - Desheng Wu
- Department of spine surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, China.
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Zhang GZ, Li L, Luo ZB, Zhang CY, Wang YG, Kang XW. Identification and experimental validation of key extracellular proteins as potential targets in intervertebral disc degeneration. Bone Joint Res 2023; 12:522-535. [PMID: 37661086 PMCID: PMC10475329 DOI: 10.1302/2046-3758.129.bjr-2022-0369.r2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/05/2023] Open
Abstract
Aims This study aimed, through bioinformatics analysis and in vitro experiment validation, to identify the key extracellular proteins of intervertebral disc degeneration (IDD). Methods The gene expression profile of GSE23130 was downloaded from the Gene Expression Omnibus (GEO) database. Extracellular protein-differentially expressed genes (EP-DEGs) were screened by protein annotation databases, and we used Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) to analyze the functions and pathways of EP-DEGs. STRING and Cytoscape were used to construct protein-protein interaction (PPI) networks and identify hub EP-DEGs. NetworkAnalyst was used to analyze transcription factors (TFs) and microRNAs (miRNAs) that regulate hub EP-DEGs. A search of the Drug Signatures Database (DSigDB) for hub EP-DEGs revealed multiple drug molecules and drug-target interactions. Results A total of 56 EP-DEGs were identified in the differential expression analysis. EP-DEGs were enriched in the extracellular structure organization, ageing, collagen-activated signalling pathway, PI3K-Akt signalling pathway, and AGE-RAGE signalling pathway. PPI network analysis showed that the top ten hub EP-DEGs are closely related to IDD. Correlation analysis also demonstrated a significant correlation between the ten hub EP-DEGs (p<0.05), which were selected to construct TF-gene interaction and TF-miRNA coregulatory networks. In addition, ten candidate drugs were screened for the treatment of IDD. Conclusion The findings clarify the roles of extracellular proteins in IDD and highlight their potential as promising novel therapeutic targets.
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Affiliation(s)
- Guang-Zhi Zhang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Lei Li
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Zhang-Bin Luo
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Cang-Yu Zhang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Yong-Gang Wang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Xue-Wen Kang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
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Wang Y, Cheng H, Wang T, Zhang K, Zhang Y, Kang X. Oxidative stress in intervertebral disc degeneration: Molecular mechanisms, pathogenesis and treatment. Cell Prolif 2023; 56:e13448. [PMID: 36915968 PMCID: PMC10472537 DOI: 10.1111/cpr.13448] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/16/2023] Open
Abstract
Low back pain (LBP) is a leading cause of labour loss and disability worldwide, and it also imposes a severe economic burden on patients and society. Among symptomatic LBP, approximately 40% is caused by intervertebral disc degeneration (IDD). IDD is the pathological basis of many spinal degenerative diseases such as disc herniation and spinal stenosis. Currently, the therapeutic approaches for IDD mainly include conservative treatment and surgical treatment, neither of which can solve the problem from the root by terminating the degenerative process of the intervertebral disc (IVD). Therefore, further exploring the pathogenic mechanisms of IDD and adopting targeted therapeutic strategies is one of the current research hotspots. Among the complex pathophysiological processes and pathogenic mechanisms of IDD, oxidative stress is considered as the main pathogenic factor. The delicate balance between reactive oxygen species (ROS) and antioxidants is essential for maintaining the normal function and survival of IVD cells. Excessive ROS levels can cause damage to macromolecules such as nucleic acids, lipids, and proteins of cells, affect normal cellular activities and functions, and ultimately lead to cell senescence or death. This review discusses the potential role of oxidative stress in IDD to further understand the pathophysiological processes and pathogenic mechanisms of IDD and provides potential therapeutic strategies for the treatment of IDD.
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Affiliation(s)
- Yidian Wang
- Department of Joint Surgery, Honghui HospitalXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Huiguang Cheng
- Department of Joint Surgery, Honghui HospitalXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Tao Wang
- Department of Joint Surgery, Honghui HospitalXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Kun Zhang
- Department of Joint Surgery, Honghui HospitalXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Yumin Zhang
- Department of Joint Surgery, Honghui HospitalXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Xin Kang
- Department of Joint Surgery, Honghui HospitalXi'an Jiaotong UniversityXi'anShaanxiChina
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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] [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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Geng Z, Wang J, Chen G, Liu J, Lan J, Zhang Z, Miao J. Gut microbiota and intervertebral disc degeneration: a bidirectional two-sample Mendelian randomization study. J Orthop Surg Res 2023; 18:601. [PMID: 37580794 PMCID: PMC10424333 DOI: 10.1186/s13018-023-04081-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/06/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND Although previous studies have suggested a close association between gut microbiota (GM) and intervertebral disc degeneration (IVDD), the causal relationship between them remains unclear. Hence, we thoroughly investigate their causal relationship by means of a two-sample Mendelian randomization (MR) study, aiming to determine the impact of gut microbiota on the risk of developing intervertebral disc degeneration. METHODS Summary data from genome-wide association studies of GM (the MiBioGen) and IVDD (the FinnGen biobank) have been acquired. The inverse variance weighted (IVW) method was utilized as the primary MR analysis approach. Weighted median, MR-Egger regression, weighted mode, and simple mode were used as supplements. The Mendelian randomization pleiotropy residual sum and outlier (MR-PRESSO) and MR-Egger regression were performed to assess horizontal pleiotropy. Cochran's Q test evaluated heterogeneity. Leave-one-out sensitivity analysis was further conducted to determine the reliability of the causal relationship. A reverse MR analysis was conducted to assess potential reverse causation. RESULTS We identified nine gut microbial taxa that were causally associated with IVDD (P < 0.05). Following the Benjamini-Hochberg corrected test, the association between the phylum Bacteroidetes and a higher risk of IVDD remained significant (IVW FDR-corrected P = 0.0365). The results of the Cochrane Q test did not indicate heterogeneity (P > 0.05). Additionally, both the MR-Egger intercept test and the MR-PRESSO global test revealed that our results were not influenced by horizontal pleiotropy (P > 0.05). Furthermore, the leave-one-out analysis substantiated the reliability of the causal relationship. In the reverse analysis, no evidence was found to suggest that IVDD has an impact on the gut microbiota. CONCLUSION Our results validate the potential causal impact of particular GM taxa on IVDD, thus providing fresh insights into the gut microbiota-mediated mechanism of IVDD and laying the groundwork for further research into targeted preventive measures.
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Affiliation(s)
- Ziming Geng
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, No. 406 Jiefang South Rd, Hexi District, Tianjin, 300211, China
| | - Jian Wang
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, No. 406 Jiefang South Rd, Hexi District, Tianjin, 300211, China
| | - Guangdong Chen
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, 300072, China
| | - Jianchao Liu
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, No. 406 Jiefang South Rd, Hexi District, Tianjin, 300211, China
| | - Jie Lan
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, No. 406 Jiefang South Rd, Hexi District, Tianjin, 300211, China
| | - Zepei Zhang
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, No. 406 Jiefang South Rd, Hexi District, Tianjin, 300211, China
| | - Jun Miao
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, No. 406 Jiefang South Rd, Hexi District, Tianjin, 300211, China.
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Shi YQ, Zhu XT, Zhang SN, Ma YF, Han YH, Jiang Y, Zhang YH. Premature ovarian insufficiency: a review on the role of oxidative stress and the application of antioxidants. Front Endocrinol (Lausanne) 2023; 14:1172481. [PMID: 37600717 PMCID: PMC10436748 DOI: 10.3389/fendo.2023.1172481] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 07/03/2023] [Indexed: 08/22/2023] Open
Abstract
Normal levels of reactive oxygen species (ROS) play an important role in regulating follicular growth, angiogenesis and sex hormone synthesis in ovarian tissue. When the balance between ROS and antioxidants is disrupted, however, it can cause serious consequences of oxidative stress (OS), and the quantity and quality of oocytes will decline. Therefore, this review discusses the interrelationship between OS and premature ovarian insufficiency (POI), the potential mechanisms and the methods by which antioxidants can improve POI through controlling the level of OS. We found that OS can mediate changes in genetic materials, signal pathways, transcription factors and ovarian microenvironment, resulting in abnormal apoptosis of ovarian granulosa cells (GCs) and abnormal meiosis as well as decreased mitochondrial Deoxyribonucleic Acid(mtDNA) and other changes, thus accelerating the process of ovarian aging. However, antioxidants, mesenchymal stem cells (MSCs), biological enzymes and other antioxidants can delay the disease process of POI by reducing the ROS level in vivo.
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Affiliation(s)
- Yu-Qian Shi
- Department of First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xi-Ting Zhu
- Department of First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Su-Na Zhang
- Department of First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yi-Fu Ma
- Department of First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yan-Hua Han
- Department of Obstetrics and Gynecology, Key Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yue Jiang
- Department of Obstetrics and Gynecology, Key Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yue-Hui Zhang
- Department of Obstetrics and Gynecology, Key Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
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Maiese K. Cognitive Impairment in Multiple Sclerosis. Bioengineering (Basel) 2023; 10:871. [PMID: 37508898 PMCID: PMC10376413 DOI: 10.3390/bioengineering10070871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
Almost three million individuals suffer from multiple sclerosis (MS) throughout the world, a demyelinating disease in the nervous system with increased prevalence over the last five decades, and is now being recognized as one significant etiology of cognitive loss and dementia. Presently, disease modifying therapies can limit the rate of relapse and potentially reduce brain volume loss in patients with MS, but unfortunately cannot prevent disease progression or the onset of cognitive disability. Innovative strategies are therefore required to address areas of inflammation, immune cell activation, and cell survival that involve novel pathways of programmed cell death, mammalian forkhead transcription factors (FoxOs), the mechanistic target of rapamycin (mTOR), AMP activated protein kinase (AMPK), the silent mating type information regulation 2 homolog 1 (Saccharomyces cerevisiae) (SIRT1), and associated pathways with the apolipoprotein E (APOE-ε4) gene and severe acute respiratory syndrome coronavirus (SARS-CoV-2). These pathways are intertwined at multiple levels and can involve metabolic oversight with cellular metabolism dependent upon nicotinamide adenine dinucleotide (NAD+). Insight into the mechanisms of these pathways can provide new avenues of discovery for the therapeutic treatment of dementia and loss in cognition that occurs during MS.
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Affiliation(s)
- Kenneth Maiese
- Cellular and Molecular Signaling, New York, NY 10022, USA
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Li ZC, An F. ERBB2-PTGS2 axis promotes intervertebral disc degeneration by regulating senescence of nucleus pulposus cells. BMC Musculoskelet Disord 2023; 24:504. [PMID: 37340393 DOI: 10.1186/s12891-023-06625-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 06/10/2023] [Indexed: 06/22/2023] Open
Abstract
Intervertebral disc degeneration (IDD) is considered one of the main causes of low back pain and lumbar disc herniation. Various studies have shown that disc cell senescence plays a critical role in this process. however, its role in IDD is yet unclear. In this study, we explored the role of senescence-related genes (SR-DEGs) and its underlying mechanism in IDD. A total of 1325 differentially expressed genes (DEGs) were identified using Gene Expression Omnibus (GEO) database GSE41883. 30 SR-DEGs were identified for further functional enrichment and pathway analysis, and two hub SR-DEGs (ERBB2 and PTGS2) were selected to construct transcription factor (TF)-gene interaction and TF-miRNA coregulatory networks, and 10 candidate drugs were screened for the treatment of IDD. Last but not least, in vitro experiments show that ERBB2 expression decreased and PTGS2 expression increased in human nucleus pulposus (NP) cell senescence model treated with TNF-α. After lentivirus-mediated overexpression of ERBB2, the expression of PTGS2 decreased and the senescence level of NP cells decreased. Overexpression of PTGS2 reversed the anti-senescence effects of ERBB2. The findings in this study suggested that ERBB2 overexpression further reduced NP cell senescence by inhibiting PTGS2 levels, which ultimately alleviated IDD. Taken together, our findings provide new insights into the roles of senescence-related genes in IDD and highlight a novel target of ERBB2-PTGS2 axis for therapeutic strategies.
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Affiliation(s)
- Zhao-Cheng Li
- Department of Spine Surgery, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, 730000, Gansu, PR China
| | - Fu An
- Department of Spine Surgery, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, 730000, Gansu, PR China.
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Wei J, Ou Z, Tong B, Liao Z, Yang C. Engineered extracellular vesicles as therapeutics of degenerative orthopedic diseases. Front Bioeng Biotechnol 2023; 11:1162263. [PMID: 37362216 PMCID: PMC10289007 DOI: 10.3389/fbioe.2023.1162263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/19/2023] [Indexed: 06/28/2023] Open
Abstract
Degenerative orthopedic diseases, as a global public health problem, have made serious negative impact on patients' quality of life and socio-economic burden. Traditional treatments, including chemical drugs and surgical treatments, have obvious side effects and unsatisfactory efficacy. Therefore, biological therapy has become the focus of researches on degenerative orthopedic diseases. Extracellular vesicles (EVs), with superior properties of immunoregulatory, growth support, and drug delivery capabilities, have emerged as a new cell-free strategy for the treatment of many diseases, including degenerative orthopedic diseases. An increasing number of studies have shown that EVs can be engineered through cargo loading, surface modification, and chemical synthesis to improve efficiency, specificity, and safety. Herein, a comprehensive overview of recent advances in engineering strategies and applications of engineered EVs as well as related researches in degenerative orthopedic diseases, including osteoarthritis (OA), osteoporosis (OP), intervertebral disc degeneration (IDD) and osteonecrosis of the femoral head (ONFH), is provided. In addition, we analyze the potential and challenges of applying engineered EVs to clinical practice.
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Affiliation(s)
| | | | | | | | - Cao Yang
- *Correspondence: Zhiwei Liao, ; Cao Yang,
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Xu J, Shao T, Lou J, Zhang J, Xia C. Aging, cell senescence, the pathogenesis and targeted therapies of intervertebral disc degeneration. Front Pharmacol 2023; 14:1172920. [PMID: 37214476 PMCID: PMC10196014 DOI: 10.3389/fphar.2023.1172920] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/25/2023] [Indexed: 05/24/2023] Open
Abstract
Intervertebral disc degeneration (IVDD) refers to the aging and degenerative diseases of intervertebral disc components such as nucleus pulposus, annulus fibrosus, and cartilage endplate, and is the main cause of chronic low back pain. Over the past few years, many researchers around the world concerned that the degeneration of nucleus pulposus (NP) cells plays the main role in IVDD. The degeneration of NP cells is caused by a series of pathological processes, including oxidative stress, inflammatory response, apoptosis, abnormal proliferation, and autophagy. Interestingly, many studies have found a close relationship between the senescence of NP cells and the progression of NP degeneration. The classical aging pathways also have been confirmed to be involved in the pathological process of IVDD. Moreover, several anti-aging drugs have been used to treat IVDD by inhibiting NP cells senescence, such as proanthocyanidins, resveratrol and bone morphogenetic protein 2. Therefore, this article will systematically list and discuss aging, cell senescence, the pathogenesis and targeted therapies of IVDD, in order to provide new ideas for the treatment of IVDD in the future.
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Affiliation(s)
- Jiongnan Xu
- Center for Plastic and Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital Hangzhou Medical College, Hangzhou, China
- The Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ting Shao
- Center for Plastic and Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital Hangzhou Medical College, Hangzhou, China
| | - Jianfen Lou
- Center for Plastic and Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital Hangzhou Medical College, Hangzhou, China
| | - Jun Zhang
- Department of Orthopedics, Zhejiang Provincial People’s Hospital Bijie Hospital, Bijie, Guizhou, China
| | - Chen Xia
- Center for Plastic and Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital Hangzhou Medical College, Hangzhou, China
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Zhu J, Sun R, Sun K, Yan C, Jiang J, Kong F, Shi J. The deubiquitinase USP11 ameliorates intervertebral disc degeneration by regulating oxidative stress-induced ferroptosis via deubiquitinating and stabilizing Sirt3. Redox Biol 2023; 62:102707. [PMID: 37099926 PMCID: PMC10149406 DOI: 10.1016/j.redox.2023.102707] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/11/2023] [Accepted: 04/20/2023] [Indexed: 04/28/2023] Open
Abstract
Increasing studies have reported that intervertebral disc degeneration (IVDD) is the main contributor and independent risk factor for low back pain (LBP), it would be, therefore, enlightening that investigating the exact pathogenesis of IVDD and developing target-specific molecular drugs in the future. Ferroptosis is a new form of programmed cell death characterized by glutathione (GSH) depletion, and inactivation of the regulatory core of the antioxidant system (glutathione system) GPX4. The close relationship of oxidative stress and ferroptosis has been studied in various of diseases, but the crosstalk between of oxidative stress and ferroptosis has not been explored in IVDD. At the beginning of the current study, we proved that Sirt3 decreases and ferroptosis occurs after IVDD. Next, we found that knockout of Sirt3 (Sirt3-/-) promoted IVDD and poor pain-related behavioral scores via increasing oxidative stress-induced ferroptosis. The (immunoprecipitation coupled with mass spectrometry) IP/MS and co-IP demonstrated that USP11 was identified to stabilize Sirt3 via directly binding to Sirt3 and deubiquitinating Sirt3. Overexpression of USP11 significantly ameliorate oxidative stress-induced ferroptosis, thus relieving IVDD by increasing Sirt3. Moreover, knockout of USP11 in vivo (USP11-/-) resulted in exacerbated IVDD and poor pain-related behavioral scores, which could be reversed by overexpression of Sirt3 in intervertebral disc. In conclusion, the current study emphasized the importance of the interaction of USP11 and Sirt3 in the pathological process of IVDD via regulating oxidative stress-induced ferroptosis, and USP11-mediated oxidative stress-induced ferroptosis is identified as a promising target for treating IVDD.
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Affiliation(s)
- Jian Zhu
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China
| | - Ruping Sun
- School of Health Science and Engineering, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai, 200093, China
| | - Kaiqiang Sun
- Department of Orthopaedic Surgery, Naval Medical Center, Naval Medical University, Shanghai, 200433, China
| | - Chen Yan
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China
| | - Jialin Jiang
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China
| | - Fanqi Kong
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China
| | - Jiangang Shi
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China.
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Wang H, Su J, Yu M, Xia Y, Wei Y. PGC-1α in osteoarthritic chondrocytes: From mechanism to target of action. Front Pharmacol 2023; 14:1169019. [PMID: 37089944 PMCID: PMC10117990 DOI: 10.3389/fphar.2023.1169019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 03/30/2023] [Indexed: 04/08/2023] Open
Abstract
Osteoarthritis (OA) is one of the most common degenerative joint diseases, often involving the entire joint. The degeneration of articular cartilage is an important feature of OA, and there is growing evidence that the mitochondrial biogenesis master regulator peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α) exert a chondroprotective effect. PGC-1α delays the development and progression of OA by affecting mitochondrial biogenesis, oxidative stress, mitophagy and mitochondrial DNA (mtDNA) replication in chondrocytes. In addition, PGC-1α can regulate the metabolic abnormalities of OA chondrocytes and inhibit chondrocyte apoptosis. In this paper, we review the regulatory mechanisms of PGC-1α and its effects on OA chondrocytes, and introduce potential drugs and novel nanohybrid for the treatment of OA which act by affecting the activity of PGC-1α. This information will help to further elucidate the pathogenesis of OA and provide new ideas for the development of therapeutic strategies for OA.
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Affiliation(s)
- Haochen Wang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jianbang Su
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Minghao Yu
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yang Xia
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China
- *Correspondence: Yang Xia, ; Yingliang Wei,
| | - Yingliang Wei
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
- *Correspondence: Yang Xia, ; Yingliang Wei,
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Kang L, Zhang H, Jia C, Zhang R, Shen C. Epigenetic modifications of inflammation in intervertebral disc degeneration. Ageing Res Rev 2023; 87:101902. [PMID: 36871778 DOI: 10.1016/j.arr.2023.101902] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/17/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
Intervertebral disc degeneration (IDD) is a common cause of joint-related chronic disability in elderly individuals worldwide. It seriously impacts the quality of life and inflicts a substantial social and economic burden. The pathological mechanisms underlying IDD have not been fully revealed, leading to less satisfactory clinical treatment outcomes. More studies are urgently needed to reveal its precise pathological mechanisms. Numerous studies have revealed that inflammation is closely related to various pathological processes of IDD, including the continuous loss of extracellular matrix, cell apoptosis, and senescence, indicating the important role of inflammation in the pathological mechanism of IDD. Epigenetic modifications affect the functions and characteristics of genes mainly through DNA methylation, histone modification, non-coding RNA regulation, and other mechanisms, thus having a major effect on the survival state of the body. Recently, the role of epigenetic modifications in inflammation during IDD has been attracting research interest. In this review, we summarize the roles of different types of epigenetic modifications in inflammation during IDD in recent years, to improve our understanding of the etiology of IDD and to transform basic research strategy into a clinically effective treatment for joint-related chronic disability in elderly individuals.
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Affiliation(s)
- Liang Kang
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Huaqing Zhang
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Chongyu Jia
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Renjie Zhang
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China.
| | - Cailiang Shen
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China.
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Lu R, Xu H, Deng X, Wang Y, He Z, Xu S, Liang S, Huang X, You H, Guo F, Cheng P, Chen AM. Physalin A alleviates intervertebral disc degeneration via anti-inflammatory and anti-fibrotic effects. J Orthop Translat 2023; 39:74-87. [PMID: 36788965 PMCID: PMC9898579 DOI: 10.1016/j.jot.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/21/2022] [Accepted: 01/05/2023] [Indexed: 01/27/2023] Open
Abstract
Background The incidence of intervertebral disc degeneration (IVDD) is a common degenerative disease with inflammation, decreased autophagy, and progression of fibrosis as its possible pathogenesis. Physalin A (PA) is a widely studied anti-inflammatory drug. However, its therapeutic effects on IVDD remain unexplored. Therefore, we aimed to explore the therapeutic potential of PA in IVDD progression. Materials and methods In vivo, we investigated PA bioactivity using a puncture-induced IVDD rat model. IVDD signals and height changes were detected using X-ray, micro-CT, and MRI, and structural and molecular lesions using histological staining and immunohistochemistry of intervertebral disc sections. In vivo, interleukin-1 beta (IL-1β) and TGF-β1 were employed to establish inflammation fibrotic nucleus pulposus (NP) cells. The PA effect duration, concentration, influence pathways, and pathological changes in IVDD treatment were elucidated using western blotting, real-time PCR, and immunofluorescence. Results PA exerted significant effects on IVDD remission due to anti-inflammation, fibrosis reduction, and autophagy enhancement. In vitro, PA improved inflammation by blocking the NF-κB and MAPK pathways, whereas it promoted autophagy via the PI3K/AKT/mTOR pathway and affected fibrotic progression by regulating the SMAD2/3 pathway. Moreover, PA improved the disc degeneration process in IVDD model. Conclusions PA exhibited significant anti-inflammatory and anti-fibrotic effects and improved autophagy in vivo and in vitro IVDD models, thus effectively relieving IVDD progression, indicating it is a promising agent for IVDD treatment. The translational potential of this article This study successfully reveals that PA, a natural bioactive withanolide, effectively relieved IVDD progression via inflammation inhibition, fibrosis reduction, and autophagy enhancement, indicating it is a promising agent for IVDD treatment.
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Affiliation(s)
- Rui Lu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Haoran Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiaofeng Deng
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong, University of Science and Technology, Wuhan, 430030, China
| | - Yingguang Wang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zhiyi He
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shimeng Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shuang Liang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiaojian Huang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hongbo You
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fengjing Guo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Peng Cheng
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - An-min Chen
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
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Chen D, Jiang X, Zou H. hASCs-derived exosomal miR-155-5p targeting TGFβR2 promotes autophagy and reduces pyroptosis to alleviate intervertebral disc degeneration. J Orthop Translat 2023; 39:163-176. [PMID: 36950198 PMCID: PMC10025964 DOI: 10.1016/j.jot.2023.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 02/06/2023] [Accepted: 02/16/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IDD) is a complex chronic disease involving nucleus pulposus cells (NPCs) senescence, apoptosis, autophagy and extracellular matrix (ECM) degradation. In this study, we aimed to investigate the role of human adipose tissue stem cells (hASCs)-derived exosomal miR-155-5p targeting TGFβR2 in IDD and the mechanisms involved. Then miRNA sequencing was performed, and hASCs-derived Exo (hASCs-Exo) was extracted and characterized. METHODS First, NPCs were treated with different concentrations of LPS. Then miRNA sequencing was performed, and hASCs-Exo was extracted and characterized. NPCs were treated with PBS or autophagy inhibitor 3-MA. NPCs were transfected with miR-155-5p mimic, si-TGFβR2 and negative control. Cell viability, apoptosis, ROS, caspase-1+PI, pyroptosis markers, inflammatory cytokines, autophagy markers, Aggrecan, MMP13, and Akt/mTOR pathway-related factors were measured. Bioinformatics prediction and dual-luciferase were performed to verify the binding sites of miR-155-5p to TGFβR2. Finally, we validated the role of hASCs-derived exosomal miR-155-5p on IDD in vivo. RESULTS LPS promoted pyroptosis of NPCs, and inhibited autophagy and ECM synthesis. MiR-155-5p was characterized as an inflammation-related miRNA in NPCs. HASCs-derived exosomal miR-155-5p inhibited pyroptosis of NPCs and promoted autophagy and ECM synthesis. After bioinformatics prediction and verification, it was found that miR-155-5p targeted TGFβR2. Moreover, miR-155-5p targeted TGFβR2 to promote autophagy and inhibit pyroptosis in NPCs. In vivo experiments revealed that hASCs-derived exosomal miR-155-5p alleviated IDD in rats. CONCLUSIONS HASCs-derived exosomal miR-155-5p alleviated IDD by targeting TGFβR2 to promote autophagy and reduce pyroptosis. Our study may provide a new therapeutic target for IDD. TRANSLATIONAL POTENTIAL OF THIS ARTICLE HASCs-derived exosomal miR-155-5p is expected to be a biomarker for clinical treatment of IDD. Our study may provide a new therapeutic target for IDD.
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Meng D, Chen W, Pan C, Yang K, Guan Y, Wang J, Moro A, Wei Q, Jiang H. Exploration of microRNA-106b-5p as a therapeutic target in intervertebral disc degeneration: a preclinical study. Apoptosis 2023; 28:199-209. [PMID: 36308623 DOI: 10.1007/s10495-022-01773-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/17/2022] [Indexed: 11/28/2022]
Abstract
MicroRNA (miRNA) has emerge as a vital regulator in the pathogenesis of intervertebral disc degeneration (IDD). However, miR-106b-5p expression in the human nucleus pulposus (NP) and potential mechanisms remain to be elucidated. In this study, the aim was to verify the potential therapeutic mechanisms of miR-106b-5p for IDD. Key miRNAs were screened for in degenerative and normal human intervertebral disc samples. qRT-PCR and fluorescence in situ hybridization (FISH) were used to verify the miR-106b-5p differential expression. The targeting link between miR-106b-5p and Sirtuin 2 (SIRT2) was identified using the luciferase reporter assay and bioinformatics. Flow cytometry, EdU method, and cell scratching were all performed to determine the NP cell function and IDD models were constructed for in vivo experiments. SIRT2, MMP13, ADAMTS5, Col II, Aggrecan, Ras, ERK1/2, and p-ERK1/2 protein levels were assayed by western blotting. Overexpression of miR-106b-5p in NP cells decreased cell growth, induced apoptosis, hindered extracellular matrix formation, and increased the expression of matrix-degrading enzymes through the SIRT2/MAPK/ERK signaling pathway. Importantly, intradiscal delivery of antagomiR-106b-5p significantly attenuated IDD development. Our findings demonstrate that targeting miR-106b-5p in intervertebral disc has therapeutic effects on IDD.
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Affiliation(s)
- Dihua Meng
- Division of Spine Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, 530021, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Weiyou Chen
- Division of Spine Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, 530021, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Cheng Pan
- Division of Spine Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, 530021, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Kunxue Yang
- Division of Spine Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, 530021, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Yewen Guan
- Division of Spine Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, 530021, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Jiaqi Wang
- Division of Spine Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, 530021, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Abu Moro
- Division of Spine Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, 530021, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Qingjun Wei
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Guangxi Medical University, 530021, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Hua Jiang
- Division of Spine Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, 530021, Nanning, Guangxi Zhuang Autonomous Region, China.
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Wang DN, Ni JJ, Li JH, Gao YQ, Ni FJ, Zhang ZZ, Fang JY, Lu J, Yao YF. Bacterial infection promotes tumorigenesis of colorectal cancer via regulating CDC42 acetylation. PLoS Pathog 2023; 19:e1011189. [PMID: 36812247 PMCID: PMC9987831 DOI: 10.1371/journal.ppat.1011189] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 03/06/2023] [Accepted: 02/07/2023] [Indexed: 02/24/2023] Open
Abstract
Increasing evidence highlights the role of bacteria in promoting tumorigenesis. The underlying mechanisms may be diverse and remain poorly understood. Here, we report that Salmonella infection leads to extensive de/acetylation changes in host cell proteins. The acetylation of mammalian cell division cycle 42 (CDC42), a member of the Rho family of GTPases involved in many crucial signaling pathways in cancer cells, is drastically reduced after bacterial infection. CDC42 is deacetylated by SIRT2 and acetylated by p300/CBP. Non-acetylated CDC42 at lysine 153 shows an impaired binding of its downstream effector PAK4 and an attenuated phosphorylation of p38 and JNK, consequently reduces cell apoptosis. The reduction in K153 acetylation also enhances the migration and invasion ability of colon cancer cells. The low level of K153 acetylation in patients with colorectal cancer (CRC) predicts a poor prognosis. Taken together, our findings suggest a new mechanism of bacterial infection-induced promotion of colorectal tumorigenesis by modulation of the CDC42-PAK axis through manipulation of CDC42 acetylation.
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Affiliation(s)
- Dan-Ni Wang
- Laboratory of Bacterial Pathogenesis, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jin-Jing Ni
- Laboratory of Bacterial Pathogenesis, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian-Hui Li
- Laboratory of Bacterial Pathogenesis, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Phage, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Ya-Qi Gao
- State Key Laboratory for Oncogenes and Related Genes; Division of Gastroenterology and Hepatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fang-Jing Ni
- Laboratory of Bacterial Pathogenesis, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhen-Zhen Zhang
- Department of Pathology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing-Yuan Fang
- State Key Laboratory for Oncogenes and Related Genes; Division of Gastroenterology and Hepatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Lu
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- * E-mail: (JL); (Y-FY)
| | - Yu-Feng Yao
- Laboratory of Bacterial Pathogenesis, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai, China
- * E-mail: (JL); (Y-FY)
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Kuang W, Jiang C, Yu C, Hu J, Duan Y, Chen Z. A microarray data analysis investigating the pathogenesis and potential biomarkers of autophagy and ferroptosis in intervertebral disc degeneration. Front Genet 2023; 13:1090467. [PMID: 36685932 PMCID: PMC9846041 DOI: 10.3389/fgene.2022.1090467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 12/13/2022] [Indexed: 01/05/2023] Open
Abstract
Background: Intervertebral disc degeneration (IDD) entails complex pathological changes and causes lower back pain (LBP). However, there is still a lack of understanding of the mechanisms involved in IDD, particularly regarding the roles of autophagy and ferroptosis. The current study used microarray data to investigate the pathogenesis of IDD and potential biomarkers related to autophagy and ferroptosis in IDD. Methods: Differentially expressed genes (DEGs) were identified by analyzing the mRNA and miRNA expression profiles of IDD patients from the Gene Expression Omnibus (GEO). The protein-protein interaction network, Gene Ontology (GO) enrichment, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, and gene set enrichment analysis (GSEA) were utilized. The Human Autophagy Database (HADb) and Ferroptosis Database were used in conjunction with hub genes to identify autophagy- and ferroptosis-related genes. The Transcription Factor -hub gene-miRNA network was constructed. Lastly, the expression of DEGs in normal and degenerated nucleus pulposus cells (NPCs) was investigated via the quantitative reverse transcription polymerase chain reaction (qRT-PCR). Results: A total of 362 DEGs associated with IDD were identified. GO and KEGG analyses indicated that oxidative stress, extracellular matrix, PI3K-AKT signaling pathway, and ferroptosis were key factors in IDD occurrence. GSEA indicated that IDD was associated with changes in autophagy, iron ion homeostasis, extracellular matrix, and oxidative stress. Eighty-nine hub genes were obtained, including five that were autophagy-related and three that were ferroptosis-related. Of these, TP53 and SESN2 were the intersections of autophagy- and ferroptosis-related genes. In qRT-PCR analysis, CANX, SLC38A1, and TP53 were downregulated in degenerative NPCs, whereas GNAI3, SESN2, and VAMP3 were upregulated. Conclusion: The current study revealed aspects of autophagy- and ferroptosis-related genes involved in IDD pathogenesis, warranting further investigation.
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Affiliation(s)
| | | | | | | | | | - Zhong Chen
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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