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Guo S, Wang C, Xiao C, Gu Q, Long L, Wang X, Xu H, Li S. Role of the mechanosensitive piezo1 channel in intervertebral disc degeneration. Clin Physiol Funct Imaging 2023; 43:59-70. [PMID: 36400723 DOI: 10.1111/cpf.12798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 09/23/2022] [Accepted: 11/10/2022] [Indexed: 11/21/2022]
Abstract
Intervertebral disc degeneration (IDD) is a multifactorial skeletal disease involving mechanical, genetic, systemic, and biological factors, and it is characterized by apoptosis of the nucleus pulposus cells and breakdown of the extracellular matrix (ECM), which will impair the structure and function of the intervertebral disc (IVD), and cause low back pain. Recently, the piezo1 is recognized as a critical mechanically activated ion channel of IDD. Numerous studies have reported that the piezo1 ion channel was aberrantly activated in the degenerated disc tissues and deeply participated in the pathogenesis of IDD. Inactivating or interfering with the piezo1 channel could effectively prevent the progression of IDD under the experimental conditions. It may be a promising target for the prevention and treatment of the disabling disease. Therefore, we have to make a comprehensive investigation and understanding of the mechanisms and functions of the piezo1 in the biomechanics of the spine. This study mainly elucidates the role of the piezo1 channel in IDD, which may facilitate the development of therapeutic targets for this disease.
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Affiliation(s)
- Sheng Guo
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Chenglong Wang
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Changming Xiao
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Qinwen Gu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Longhai Long
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Xiaoqiang Wang
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Houping Xu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Sen Li
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
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Chang H, Cai F, Zhang Y, Jiang M, Yang X, Qi J, Wang L, Deng L, Cui W, Liu X. Silencing Gene-Engineered Injectable Hydrogel Microsphere for Regulation of Extracellular Matrix Metabolism Balance. Small Methods 2022; 6:e2101201. [PMID: 34994105 DOI: 10.1002/smtd.202101201] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Extracellular matrix (ECM) metabolism balance is essential for maintaining tissue structure and function. However, the complex crosstalk between the ECM, resident cellular, and tissue microenvironment makes long-term maintenance of ECM metabolism balance in an abnormal microenvironment difficult to achieve. Herein, an injectable circRNA silencing-hydrogel microsphere (psh-circSTC2-lipo@MS) is constructed by grafting circSTC2 silencing genes-loaded 1,2-dioleoyl-3-trimethylammonium-propane/cholesterol/1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOTAP/Chol/DOPE) cationic liposomes on methacrylated hyaluronic acid (HAMA) microspheres via amide bonds, which could silence pathological genes in nucleus pulposus (NP) cells to regulate ECM metabolism balance in the nutrient-restricted microenvironment, thereby inhibiting intervertebral disc (IVD) degeneration. HAMA microspheres prepared by microfluidics displayed good degradability, swellability, and injectability. And lipoplexes can be efficiently loaded and released for 27 d through chemical grafting. Cocultured under nutrient-restricted conditions for 72 h, psh-circSTC2-lipo@MS significantly promotes the synthesis of ECM-related proteins and inhibits the secretion of ECM catabolism-related proteases in NP cells. In the rat IVD nutrient-restricted model, local injection of psh-circSTC2-lipo@MS promotes ECM synthesis and restored NP tissue after 8 weeks. In summary, this study confirms that psh-circSTC2-lipo@MS as a safe and controllable targeted gene delivery system has great potential in regulating the ECM metabolism balance under an abnormal microenvironment.
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Affiliation(s)
- Hongze Chang
- Department of Orthopedics, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, P. R. China
- Center for Clinical Research and Translational Medicine, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, P. R. China
| | - Feng Cai
- Department of Orthopedics, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, P. R. China
| | - Yan Zhang
- Department of Orthopedics, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, P. R. China
| | - Mingwei Jiang
- Department of Orthopedics, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, P. R. China
- Center for Clinical Research and Translational Medicine, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, P. R. China
| | - Xiaolong Yang
- Department of Orthopedics, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, P. R. China
| | - Jin Qi
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Lei Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Lianfu Deng
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Xiaodong Liu
- Department of Orthopedics, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, P. R. China
- Center for Clinical Research and Translational Medicine, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, P. R. China
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Wang Z, Rao Z, Wang X, Jiang C, Yang Y. circPhc3 sponging microRNA‑93‑3p is involved in the regulation of chondrocyte function by mechanical instability in osteoarthritis. Int J Mol Med 2022; 49:6. [PMID: 34779488 PMCID: PMC8612303 DOI: 10.3892/ijmm.2021.5061] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 10/26/2021] [Indexed: 12/28/2022] Open
Abstract
Cartilage extracellular matrix (ECM) metabolism disorder caused by mechanical instability is a leading cause of osteoarthritis (OA), but the exact mechanisms have not been fully elucidated. Recent studies have suggested an important role of circular RNAs (circRNAs/circs) in OA. The present study aimed to investigate whether circRNAs might have a role in mechanical instability‑regulated chondrocyte matrix metabolism in OA. The expression levels of circPhc3 in human and mouse OA cartilage samples were measured using reverse transcription‑quantitative PCR and fluorescence in situ hybridization. The effects of circPhc3 on chondrocyte ECM metabolism were further investigated by overexpressing and knocking down circPhc3 in OA chondrocytes. The downstream target of circPhc3 was examined by performing a luciferase reporter assay. The results showed that the expression of circPhc3 was reduced in human and mouse OA cartilage. Moreover, circPhc3 was involved in mechanical loading‑regulated production of ECM and cartilage‑degrading enzymes. Further studies showed that circPhc3 regulated chondrocyte matrix metabolism primarily by binding to microRNA (miR)‑93‑3p, and mechanistic studies found that miR‑93‑3p targeting of FoxO1 was involved in chondrocyte matrix metabolism. Taken together, these results indicated that circPhc3 may serve an important role in the progression of OA and may be a good target for the treatment of OA.
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Affiliation(s)
- Zhiyuan Wang
- Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, Shanghai 200092, P.R. China
| | - Zhitao Rao
- Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, Shanghai 200092, P.R. China
| | - Xin Wang
- Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, Shanghai 200092, P.R. China
| | - Chao Jiang
- Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, Shanghai 200092, P.R. China
| | - Yi Yang
- Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, Shanghai 200092, P.R. China
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Abstract
Stress urinary incontinence (SUI) is defined as involuntary urinary leakage happening in exertion. Nicotinamide phosphoribosyltransferase (Nampt) is seldom researched in the pathogenesis of SUI. Accordingly, the current study set out to elucidate the role of Nampt in SUI progression. Firstly, we determined Nampt expression patterns in SUI patients and rat models. In addition, fibroblasts were obtained from the anterior vaginal wall tissues of non-SUI patients and subjected to treatment with different concentrations of interleukin-1β (IL-1β), followed by quantification of Nampt expressions in fibroblasts. Subsequently, an appropriate concentration of IL-1β was selected to treat anterior vaginal wall fibroblasts. Nampt was further silenced in IL-1β-treated fibroblasts to assess the role of Nampt in autophagy and extracellular matrix (ECM) degradation. Lastly, functional rescue assays were carried out to inhibit autophagy and evaluate the role of autophagy in the mechanism of Nampt modulating IL-1β-treated fibroblast ECM degradation. It was found that Nampt was highly-expressed in SUI patients and rat models and IL-1β-treated fibroblasts. On the other hand, Nampt silencing was found to suppress ECM degradation and promote SUI fibroblast autophagy. Additionally, inhibition of autophagy attenuated the inhibitory effects of Nampt silencing on SUI fibroblast ECM degradation. Collectively, our findings revealed that Nampt was over-expressed in SUI, whereas Nampt silencing enhanced SUI fibroblast autophagy, and thereby inhibited ECM degradation.
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Affiliation(s)
- Hui Zhang
- Gynecology II Ward, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan Province, China
| | - Lu Wang
- Gynecology II Ward, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan Province, China
| | - Yuancui Xiang
- Gynecology II Ward, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan Province, China
| | - Yali Wang
- Gynecology II Ward, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan Province, China
| | - Hongjuan Li
- Gynecology II Ward, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan Province, China
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Zhang K, Xue C, Lu N, Ren P, Peng H, Wang Y, Wang Y. Mechanical loading mediates human nucleus pulposus cell viability and extracellular matrix metabolism by activating of NF-κB. Exp Ther Med 2019; 18:1587-1594. [PMID: 31410113 PMCID: PMC6676187 DOI: 10.3892/etm.2019.7744] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/16/2019] [Indexed: 12/21/2022] Open
Abstract
Lower back pain is one of the most frequent complaints in US orthopedic outpatient departments. Intervertebral disc degeneration (IDD) is an important cause of lower back pain. Previous studies have found that mechanical loading was associated with IDD, but the underlying mechanism remains unclear. In the present study, a human nucleus pulposus cell line was used to establish an in vitro mechanical loading model. Mechanical loading, western blot analysis, quantitative PCR, ELISA, cell viability assay and IHC staining were used in the current study. It was found that a short loading time of 4 h followed by a long period of rest (20 h) exerted protective effects against matrix degradation in nucleus pulposus cells, whilst a longer loading time of 20 h followed by a shorter period of rest (4 h) resulted in cell apoptosis and extracellular matrix (ECM) degradation. Excessive mechanical loading may induce ECM degradation by activation of the NF-κB signaling pathway. Taken together, these findings demonstrated that whilst moderate mechanical loading exerted beneficial effects on nucleus pulposus cells, excessive mechanical loading inhibited human nucleus pulposus cell viability and promoted ECM degradation by activating NF-κB.
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Affiliation(s)
- Kai Zhang
- Department of Orthopedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, P.R. China
| | - Chao Xue
- Department of Orthopedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, P.R. China
| | - Ning Lu
- Department of Orthopedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, P.R. China
| | - Peng Ren
- Department of Orthopedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, P.R. China
| | - Haiwen Peng
- Department of Orthopedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, P.R. China
| | - Yao Wang
- Department of Orthopedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, P.R. China
| | - Yan Wang
- Department of Orthopedics, The General Hospital of Chinese People's Liberation Army, Beijing 100853, P.R. China
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Elia I, Rossi M, Stegen S, Broekaert D, Doglioni G, van Gorsel M, Boon R, Escalona-Noguero C, Torrekens S, Verfaillie C, Verbeken E, Carmeliet G, Fendt SM. Breast cancer cells rely on environmental pyruvate to shape the metastatic niche. Nature 2019; 568:117-121. [PMID: 30814728 PMCID: PMC6451642 DOI: 10.1038/s41586-019-0977-x] [Citation(s) in RCA: 180] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 01/28/2019] [Indexed: 12/18/2022]
Abstract
The extracellular matrix is a major component of the local environment-that is, the niche-that determines cell behaviour1. During metastatic growth, cancer cells shape the extracellular matrix of the metastatic niche by hydroxylating collagen to promote their own metastatic growth2,3. However, only particular nutrients might support the ability of cancer cells to hydroxylate collagen, because nutrients dictate which enzymatic reactions are active in cancer cells4,5. Here we show that breast cancer cells rely on the nutrient pyruvate to drive collagen-based remodelling of the extracellular matrix in the lung metastatic niche. Specifically, we discovered that pyruvate uptake induces the production of α-ketoglutarate. This metabolite in turn activates collagen hydroxylation by increasing the activity of the enzyme collagen prolyl-4-hydroxylase (P4HA). Inhibition of pyruvate metabolism was sufficient to impair collagen hydroxylation and consequently the growth of breast-cancer-derived lung metastases in different mouse models. In summary, we provide a mechanistic understanding of the link between collagen remodelling and the nutrient environment in the metastatic niche.
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Affiliation(s)
- Ilaria Elia
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Matteo Rossi
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Steve Stegen
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | - Dorien Broekaert
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Ginevra Doglioni
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Marit van Gorsel
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Ruben Boon
- Stem Cell Institute, KU Leuven, Leuven, Belgium
| | - Carmen Escalona-Noguero
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Sophie Torrekens
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | | | - Erik Verbeken
- Translational Cell and Tissue Research, KU Leuven, Leuven, Belgium
| | - Geert Carmeliet
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | - Sarah-Maria Fendt
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium.
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium.
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Wang Z, Wang G, Zhu X, Geng D, Yang H. Interleukin-2 is upregulated in patients with a prolapsed lumbar intervertebral disc and modulates cell proliferation, apoptosis and extracellular matrix metabolism of human nucleus pulposus cells. Exp Ther Med 2015; 10:2437-2443. [PMID: 26668654 DOI: 10.3892/etm.2015.2809] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 09/25/2015] [Indexed: 12/28/2022] Open
Abstract
Previous studies have demonstrated that the expression levels of cytokines are increased in degenerated intervertebral disc tissues, and several cytokines are associated with the pathogenesis of intervertebral disc degeneration. However, the role of interleukin (IL)-2 in the cellular functions of intervertebral disc tissues remains unreported. The present study aimed to determine the expression levels of IL-2 in the nucleus pulposus (NP) tissues of patients with a prolapsed lumbar intervertebral disc; and to observe the changes in cell proliferation, apoptosis, extracellular matrix (ECM) metabolism and p38 mitogen-activated protein kinase (MAPK) signaling in human NP cells (HNPCs) following treatment with IL-2. The present study demonstrated that IL-2 expression levels were upregulated in the NP tissues of patients with a prolapsed lumbar intervertebral disc; and a subsequent MTT assay demonstrated that IL-2 inhibits the proliferation of HNPCs in a dose-dependent manner. Furthermore, as demonstrated by the increased protein expression levels of Fas cell surface death receptor and the induction of caspase-8 and caspase-3 activity, the death receptor pathway was activated by IL-2 in the HNPCs in order to promote cell apoptosis. In addition, IL-2 promoted ECM degradation in the HNPCs, as demonstrated by an increase in the expression levels of type I collagen, a disintegrin and metalloproteinase with thrombospondin motifs and matrix metalloproteinases, and decreased aggrecan and type II collagen expression levels. Furthermore, phosphorylated-p38 was significantly increased in the HNPCs following IL-2 treatment. In conclusion, the present study demonstrated that IL-2 inhibits cell proliferation, and induces cell apoptosis and ECM degradation, accompanied by the activation of p38 MAPK signaling in HNPCs. Therefore, IL-2 may be a potential therapeutic agent for the treatment of degenerative disc disease.
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Affiliation(s)
- Zhirong Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China ; Department of Orthopedic Surgery, Zhangjiagang Hospital of Traditional Chinese Medicine, Zhangjiagang, Jiangsu 215600, P.R. China
| | - Genlin Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Xuesong Zhu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Dechun Geng
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Huilin Yang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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