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Zou X, Zhang X, Han S, Wei L, Zheng Z, Wang Y, Xin J, Zhang S. Pathogenesis and therapeutic implications of matrix metalloproteinases in intervertebral disc degeneration: A comprehensive review. Biochimie 2023; 214:27-48. [PMID: 37268183 DOI: 10.1016/j.biochi.2023.05.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 05/22/2023] [Accepted: 05/22/2023] [Indexed: 06/04/2023]
Abstract
Intervertebral disc (IVD) degeneration (IDD) is a common disorder that affects the spine and is a major cause of lower back pain (LBP). The extracellular matrix (ECM) is the structural foundation of the biomechanical properties of IVD, and its degradation is the main pathological characteristic of IDD. Matrix metalloproteinases (MMPs) are a group of endopeptidases that play an important role in the degradation and remodeling of the ECM. Several recent studies have shown that the expression and activity of many MMP subgroups are significantly upregulated in degenerated IVD tissue. This upregulation of MMPs results in an imbalance of ECM anabolism and catabolism, leading to the degradation of the ECM and the development of IDD. Therefore, the regulation of MMP expression is a potential therapeutic target for the treatment of IDD. Recent research has focused on identifying the mechanisms by which MMPs cause ECM degradation and promote IDD, as well as on developing therapies that target MMPs. In summary, MMP dysregulation is a crucial factor in the development of IDD, and a deeper understanding of the mechanisms involved is needed to develop effective biological therapies that target MMPs to treat IDD.
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Affiliation(s)
- Xiaosong Zou
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, 130021, China; Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, 130021, China
| | - Xingmin Zhang
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, 130021, China; Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, 130021, China
| | - Song Han
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, 130021, China; Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, 130021, China
| | - Lin Wei
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, 130021, China; Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, 130021, China
| | - Zhi Zheng
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, 130021, China; Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, 130021, China
| | - Yongjie Wang
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, 130021, China; Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, 130021, China
| | - Jingguo Xin
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, 130021, China; Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, 130021, China
| | - Shaokun Zhang
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, 130021, China; Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, 130021, China.
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Savvidou S, Panteli N, Dotas V, Symeon G, Galamatis D, Panitsidis I, Voutsinou E, Tatidou C, Kumar P, Antonopoulou E, Michailidis G, Giannenas I. Dietary Supplementation with Pomegranate and Onion Affects Lipid and Protein Oxidation in the Breast Meat, Thigh, and Liver, Cellular Stress Protein Responses, and Gene Expression of Liver Enzymes Involved in Protein Synthesis in Broilers. Foods 2023; 12:3870. [PMID: 37893762 PMCID: PMC10606836 DOI: 10.3390/foods12203870] [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: 08/30/2023] [Revised: 10/17/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
The present study examined the effects of dietary supplementation with extracts of pomegranate (Punica granatum) and onion (Allium cepa), either encapsulated in cyclodextrin (POMALCD group) or in an aqueous (POMALAQ group) form, on breast meat, thigh meat, and liver composition, oxidative stability, cellular signaling pathways, and the gene expression of certain hepatic genes. The results showed that breast and thigh meat contained significantly (p < 0.05) higher moisture content in the group with the aqueous extract, compared to the control and POMALCD groups. Moreover, the protein content was significantly (p < 0.05) higher in the thigh and liver samples of the treated groups in comparison to the control. The iron-induced challenge deteriorated (p < 0.001) the lipid and protein oxidative status of the control group, whereas both supplemented groups showed considerable tolerance in all tissues. The supplementation of pomegranate and onion extracts mitigated or maintained heat shock protein (HSP) levels and elevated (p < 0.05) the Bcl-2/Bad ratio in thigh and breast meat, whereas mitogen-activated protein kinase (MAPK) activation was modulated at a lower rate. After normalization to β-actin expression, quantitative real-time PCR analysis revealed a significant (p < 0.05) induction in the expression of MTR and MSRB1 genes in the liver of the supplemented groups. No differences were observed for the TAT, SMS, and BHMT genes. In conclusion, dietary mixtures of herbal extracts with pomegranate and onion improved protein and lipid oxidative stability in meat, enhanced the hepatic energy status, and exerted ameliorative effects on stress-related proteins. The encapsulated extract of pomegranate and onion, using cyclodextrin as a carrier, appeared to reduce lipid oxidation to a greater extent than the aqueous extract. In contrast, the aqueous extract exhibited higher total antioxidant capacity (TAC) values and provided better protection against protein carbonyl formation.
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Affiliation(s)
- Soumela Savvidou
- Research Institute of Animal Science, Hellenic Agricultural Organization Demeter, 58100 Giannitsa, Greece; (S.S.); (G.S.)
| | - Nikolas Panteli
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.P.); (E.V.); (C.T.); (E.A.)
| | - Vassilios Dotas
- Laboratory of Nutrition Physiology & Applied Farm Animal Nutrition, Department of Animal Production, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - George Symeon
- Research Institute of Animal Science, Hellenic Agricultural Organization Demeter, 58100 Giannitsa, Greece; (S.S.); (G.S.)
| | - Dimitrios Galamatis
- Department of Animal Science, School of Agricultural Sciences, University of Thessaly, 41500 Larissa, Greece;
| | - Ioannis Panitsidis
- Laboratory of Nutrition, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (I.G.)
| | - Eirini Voutsinou
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.P.); (E.V.); (C.T.); (E.A.)
| | - Christina Tatidou
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.P.); (E.V.); (C.T.); (E.A.)
| | - Prafulla Kumar
- Department of Technical Sales and Research, R&D LifeSciences, 8801 Enterprise Blvd, Largo, FL 33773, USA;
| | - Efthimia Antonopoulou
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.P.); (E.V.); (C.T.); (E.A.)
| | - Georgios Michailidis
- Laboratory of Physiology of Reproduction of Farm Animals, Department of Animal Production, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Ilias Giannenas
- Laboratory of Nutrition, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (I.G.)
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Rizk FH, El-Saka MH, Ibrahim RR, El-Deeb OS, Ibrahim HA, El Saadany AA, Mashal SS, Ammar L, Abdelsattar AM, Barhoma RA. Possible mitigating effect of adropin on lung injury in diabetic rats: Targeting the role of Rho A/Rho-associated kinase pathway. Biofactors 2023; 49:928-939. [PMID: 37103121 DOI: 10.1002/biof.1955] [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: 02/05/2023] [Accepted: 03/31/2023] [Indexed: 04/28/2023]
Abstract
This study evaluated possible mitigating effect of adropin on lung injury in diabetic rats, targeting role of Rho A/Rho-associated kinase pathway. Rats were allocated into four groups: control, adropin, diabetic, and diabetic+adropin groups. At the termination of the experiment, serum fasting glucose, insulin and adropin levels and insulin resistance were calculated. Wet/dry ratio, histopathological, immunohistochemical analyses, and relative real time gene expression of lung tissue was determined. Interleukin-6, tumor necrosis factor alpha, malondialdehyde, 8-Oxo-2'-deoxyguanosine, reduced glutathione, superoxide dismutase, Bcl-2, BAX, myeloperoxidase, intracellular adhesion molecule-1, vascular cell adhesion molecule-1, and transforming growth factor-β were determined in lung tissue. Adropin treatment in diabetic rats notably attenuated hyperglycemia and insulin resistance. Also, it mitigated diabetic lung injury via suppressing effect on Rho A/ROCK pathway, apoptosis, inflammatory reactions, oxidative stress, and fibrosis of lung tissue. Adropin can be considered as a promising therapeutic agent for treating diabetic lung injury.
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Affiliation(s)
- Fatma H Rizk
- Department of Physiology, Faculty of Medicine, Tanta University, Egypt
| | - Mervat H El-Saka
- Department of Physiology, Faculty of Medicine, Tanta University, Egypt
| | - Rowida Raafat Ibrahim
- Department of Medical Biochemistry & Molecular Biology, Faculty of Medicine, Tanta University, Egypt
| | - Omnia Safwat El-Deeb
- Department of Medical Biochemistry & Molecular Biology, Faculty of Medicine, Tanta University, Egypt
| | - Hoda A Ibrahim
- Department of Medical Biochemistry & Molecular Biology, Faculty of Medicine, Tanta University, Egypt
| | - Amira A El Saadany
- Department of Pharmacology, Faculty of Medicine, Tanta University, Egypt
| | - Shaimaa S Mashal
- Department of Internal Medicine, Faculty of Medicine, Tanta University, Egypt
| | - Leila Ammar
- Department of Histology, Faculty of Medicine, Tanta University, Egypt
| | | | - Ramez A Barhoma
- Department of Physiology, Faculty of Medicine, Tanta University, Egypt
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Ji Y, Yang Y, Sun S, Dai Z, Ren F, Wu Z. Insights into diet-associated oxidative pathomechanisms in inflammatory bowel disease and protective effects of functional amino acids. Nutr Rev 2022; 81:95-113. [PMID: 35703919 DOI: 10.1093/nutrit/nuac039] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
There has been a substantial rise in the incidence and prevalence of clinical patients presenting with inflammatory bowel disease (IBD), which includes Crohn's disease and ulcerative colitis. Accumulating evidence has corroborated the view that dietary factors (particularly diets with high levels of saturated fat or sugar) are involved in the development and progression of IBD, which is predominately associated with changes in the composition of the gut microbiota and an increase in the generation of reactive oxygen species. Notably, the ecological imbalance of the gut microbiome exacerbates oxidative stress and inflammatory responses, leading to perturbations of the intestinal redox balance and immunity, as well as mucosal integrity. Recent findings have revealed that functional amino acids, including L-glutamine, glycine, L-arginine, L-histidine, L-tryptophan, and hydroxyproline, are effectively implicated in the maintenance of intestinal redox and immune homeostasis. These amino acids and their metabolites have oxygen free-radical scavenging and inflammation-relieving properties, and they participate in modulation of the microbial community and the metabolites in the gut. The principal focus of this article is a review of recent advances in the oxidative pathomechanisms of IBD development and progression in relation to dietary factors, with a particular emphasis on the redox and signal transduction mechanisms of host cells in response to unbalanced diets and enterobacteria. In addition, an update on current understanding of the protective effects of functional amino acids against IBD, together with the underlying mechanisms for this protection, have been provided.
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Affiliation(s)
- Yun Ji
- are with the State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, China.,are with the Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing, China
| | - Ying Yang
- are with the State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, China
| | - Shiqiang Sun
- are with the State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, China
| | - Zhaolai Dai
- are with the State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, ChinaChina
| | - Fazheng Ren
- are with the Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing, China
| | - Zhenlong Wu
- are with the State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, China.,are with the Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing, China
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5
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Arsenic trioxide sensitizes pancreatic cancer cells to gemcitabine through downregulation of the TIMP1/PI3K/AKT/mTOR axis. Transl Res 2022; 255:66-76. [PMID: 36400307 DOI: 10.1016/j.trsl.2022.11.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
Gemcitabine (GEM) is the first-line medication for pancreatic ductal adenocarcinoma (PDAC). However, over some treatment cycles, GEM sensitivity declines and chemotherapeutic resistance develops, resulting in tumor recurrence and metastasis. Therefore, it is critical to elucidate the mechanism of GEM chemoresistance. And a specific drug that is closely related to the mechanism is urgently required to sensitize GEM. Here, tissue inhibitor of matrix metalloproteinases 1 (TIMP1) and phosphorylated mammalian target of rapamycin (p-mTOR) were found to be substantially elevated in PDAC patients and were associated with worse overall survival. The TIMP1/PI3K/AKT/mTOR pathway was found in GEM-resistant PDAC cells and was revealed to be involved in epithelial-mesenchymal transition (EMT) and apoptosis. Furthermore, arsenic trioxide (ATO), a basic therapeutic drug for acute promyelocytic leukemia, mediated TIMP1 reduction by inducing reactive oxygen species generation and hampered the subsequent PI3K/AKT/mTOR axis. Moreover, the combination of ATO and GEM cooperatively suppressed the TIMP1/PI3K/AKT/mTOR pathway, synergistically inhibited EMT and promoted apoptosis. In vitro and in vivo, ATO combined with GEM has a collaborative anticancer effect, inhibiting cancer cell proliferation, migration, invasion, and suppressing tumor growth both in PDAC parental and GEM-resistant cells. Overall, the TIMP1/PI3K/AKT/mTOR pathway is present in PDAC and linked to GEM resistance. ATO suppresses the axis to sensitize GEM and reverse GEM resistance, suggesting a promising treatment for the disease.
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Wen P, Zheng B, Zhang B, Ma T, Hao L, Zhang Y. The role of ageing and oxidative stress in intervertebral disc degeneration. Front Mol Biosci 2022; 9:1052878. [PMID: 36419928 PMCID: PMC9676652 DOI: 10.3389/fmolb.2022.1052878] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 10/25/2022] [Indexed: 10/10/2023] Open
Abstract
Intervertebral disc degeneration (IDD) is the primary cause of intervertebral disc (IVD) disease. With the increased ageing of society, an increasing number of patients are plagued by intervertebral disc disease. Ageing not only accelerates the decreased vitality and functional loss of intervertebral disc cells but also increases intracellular oxidative stress. Moreover, the speed of intervertebral disc ageing is also linked to high levels of reactive oxygen species (ROS) production. Not only is the production of ROS increased in ageing intervertebral disc cells, but antioxidant levels in degenerative intervertebral discs also decrease. In addition to the intervertebral disc, the structural components of the intervertebral disc matrix are vulnerable to oxidative damage. After chronic mitochondrial dysfunction, ROS can be produced in large quantities, while autophagy can eliminate these impaired mitochondria to reduce the production of ROS. Oxidative stress has a marked impact on the occurrence of IDD. In the future, IDD treatment is aiming to improve oxidative stress by regulating the redox balance in intervertebral disc cells. In summary, ageing and oxidative stress promote the degeneration of IVD, but further basic and clinical trials are needed to determine how to treat oxidative stress. At present, although there are many in-depth studies on the relationship between oxidative stress and degeneration of intervertebral disc cells, the specific mechanism has not been elucidated. In this paper, the main causes of intervertebral disc diseases are studied and summarized, and the impact of oxidative stress on intervertebral disc degeneration is studied.
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Affiliation(s)
- Pengfei Wen
- Department of Joint Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Bolong Zheng
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Binfei Zhang
- Department of Joint Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Tao Ma
- Department of Joint Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Linjie Hao
- Department of Joint Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Yumin Zhang
- Department of Joint Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, China
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Sevcuka A, White K, Terry C. Factors That Contribute to hIAPP Amyloidosis in Type 2 Diabetes Mellitus. Life (Basel) 2022; 12:life12040583. [PMID: 35455074 PMCID: PMC9025880 DOI: 10.3390/life12040583] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/01/2022] [Accepted: 04/12/2022] [Indexed: 12/24/2022] Open
Abstract
Cases of Type 2 Diabetes Mellitus (T2DM) are increasing at an alarming rate due to the rise in obesity, sedentary lifestyles, glucose-rich diets and other factors. Numerous studies have increasingly illustrated the pivotal role that human islet amyloid polypeptide (hIAPP) plays in the pathology of T2DM through damage and subsequent loss of pancreatic β-cell mass. HIAPP can misfold and form amyloid fibrils which are preceded by pre-fibrillar oligomers and monomers, all of which have been linked, to a certain extent, to β-cell cytotoxicity through a range of proposed mechanisms. This review provides an up-to-date summary of recent progress in the field, highlighting factors that contribute to hIAPP misfolding and aggregation such as hIAPP protein concentration, cell stress, molecular chaperones, the immune system response and cross-seeding with other amyloidogenic proteins. Understanding the structure of hIAPP and how these factors affect amyloid formation will help us better understand how hIAPP misfolds and aggregates and, importantly, help identify potential therapeutic targets for inhibiting amyloidosis so alternate and more effective treatments for T2DM can be developed.
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Yao C, Guo G, Huang R, Tang C, Zhu Q, Cheng Y, Kong L, Ren J, Fang M. Manual therapy regulates oxidative stress in aging rat lumbar intervertebral discs through the SIRT1/FOXO1 pathway. Aging (Albany NY) 2022; 14:2400-2417. [PMID: 35289767 PMCID: PMC8954973 DOI: 10.18632/aging.203949] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 03/01/2022] [Indexed: 11/25/2022]
Abstract
With the increasing burden of a globally aging population, low back pain has become one of the most common musculoskeletal disorders, caused mainly by intervertebral disc (IVD) degeneration. There are currently several clinical methods to alleviate back pain, but there is scarce attention paid as to whether they can improve age-related IVD degeneration. It is therefore difficult to conduct an in-depth evaluation of these methods. A large number of clinical studies have shown that manual therapy (MT), a widely used comprehensive alternative method, has effects on pain, the mechanisms of which require further study. In this study, MT was performed on aging rats for 6 months, and their behaviors were compared with those of a non-intervention group of aging and young rats. After the intervention, all rats were examined by X-ray to observe lumbar spine degeneration, and the IVD tissues were dissected for detection, including pathological staining, immunofluorescence, Western bolt, etc. This study demonstrated the possibility that MT intervention delay the lumbar IVD degeneration in aging rats, specifically improving the motor function and regulating senescence-associated β-galactosidase, p53, p21, p16, and telomerase activity to retard the senescence of cells in IVDs. Moreover, MT intervention can modify oxidative stress, increase the expression of SIRT1 and FOXO1 in IVDs and decrease ac-FOXO1 expression, suggesting that MT can reduce oxidative stress through the SIRT1/FOXO1 pathway, thereby playing a role in delaying the aging of IVDs. This study shows that drug-free, non-invasive mechanical interventions could be of major significance in improving the physical function of the elderly.
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Affiliation(s)
- Chongjie Yao
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China.,Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Guangxin Guo
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China.,Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
| | - Ruixin Huang
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Cheng Tang
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Qingguang Zhu
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China.,Research Institute of Tuina, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Yanbin Cheng
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China.,Research Institute of Tuina, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Lingjun Kong
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China.,Research Institute of Tuina, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Jun Ren
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Min Fang
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China.,Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China.,Research Institute of Tuina, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200437, P.R. China
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The Proteolysis of ECM in Intervertebral Disc Degeneration. Int J Mol Sci 2022; 23:ijms23031715. [PMID: 35163637 PMCID: PMC8835917 DOI: 10.3390/ijms23031715] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 12/12/2022] Open
Abstract
Intervertebral disc (IVD) degeneration (IDD) is a pathological process that commonly occurs throughout the human life span and is a major cause of lower back pain. Better elucidation of the molecular mechanisms involved in disc degeneration could provide a theoretical basis for the development of lumbar disc intervention strategies. In recent years, extracellular matrix (ECM) homeostasis has received much attention due to its relevance to the mechanical properties of IVDs. ECM proteolysis mediated by a variety of proteases is involved in the pathological process of disc degeneration. Here, we discuss in detail the relationship between the IVD as well as the ECM and the role of ECM proteolysis in the degenerative process of the IVD. Targeting ECM proteolysis-associated proteases may be an effective means of intervention in IDD.
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10
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Li S, Huang C, Xiao J, Wu Y, Zhang Z, Zhou Y, Tian N, Wu Y, Wang X, Zhang X. The Potential Role of Cytokines in Diabetic Intervertebral Disc Degeneration. Aging Dis 2022; 13:1323-1335. [PMID: 36186138 PMCID: PMC9466964 DOI: 10.14336/ad.2022.0129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/29/2022] [Indexed: 12/02/2022] Open
Abstract
Intervertebral disc degeneration (IVDD) is a major cause of low back pain. Diabetes mellitus is a chronic inflammatory disease that may cause or aggravate IVDD; however, the mechanism by which diabetes induce IVDD is currently unclear. Compared to non-diabetic individuals, diabetic patients have higher levels of plasma cytokines, especially TNF-α, IL-1β, IL-5, IL-6, IL-7, IL-10, and IL-18. Due to the crucial role of cytokines in the process of intervertebral disc degeneration, we hypothesized that elevation of these cytokines in plasma of diabetic patients may be involved in the process of diabetes-induced IVDD. In this review, changes in plasma cytokine levels in diabetic patients were summarized and the potential role of elevated cytokines in diabetes-induced IVDD was discussed. Results showed that some cytokines such as TNF-α and IL-1β may accelerate the development of IVDD, while others such as IL-10 is supposed to prevent its development. Apoptosis, senescence, and extracellular matrix metabolism were found to be regulated by these cytokines in IVDD. Further studies are required to validate the cytokines targeted strategy for diabetic IVDD therapy.
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Affiliation(s)
- Sunlong Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Chongan Huang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Jian Xiao
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Yuhao Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Zengjie Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China.
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yifei Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Naifeng Tian
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Yaosen Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Xiangyang Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Correspondence should be addressed to: Dr. Xiaolei Zhang () or Dr. Xiangyang Wang (), Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, West Xueyuan Road, Wenzhou, Zhejiang, China
| | - Xiaolei Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Chinese Orthopaedic Regenerative Medicine Society, Hangzhou, Zhejiang, China.
- Correspondence should be addressed to: Dr. Xiaolei Zhang () or Dr. Xiangyang Wang (), Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, West Xueyuan Road, Wenzhou, Zhejiang, China
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11
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A new immunometabolic perspective of intervertebral disc degeneration. Nat Rev Rheumatol 2022; 18:47-60. [PMID: 34845360 DOI: 10.1038/s41584-021-00713-z] [Citation(s) in RCA: 133] [Impact Index Per Article: 66.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2021] [Indexed: 12/12/2022]
Abstract
Intervertebral disc (IVD) degeneration is a common finding on spine imaging that increases in prevalence with age. IVD degeneration is a frequent cause of low back pain, which is a leading cause of disability. The process of IVD degeneration consists of gradual structural change accompanied by severe alterations in metabolic homeostasis. IVD degeneration, like osteoarthritis, is a common comorbidity in patients with obesity and type 2 diabetes mellitus, two metabolic syndrome pathological conditions in which adipokines are important promoters of low-grade inflammation, extracellular matrix degradation and fibrosis. Impairment in white adipose tissue function, due to the abnormal fat accumulation in obesity, is characterized by increased production of specific pro-inflammatory proteins such as adipokines by white adipose tissue and of cytokines such as TNF by immune cells of the stromal compartment. Investigations into the immunometabolic alterations in obesity and type 2 diabetes mellitus and their interconnections with IVD degeneration provide insights into how adipokines might affect the pathogenesis of IVD degeneration and impair IVD function and repair. Toll-like receptor-mediated signalling has also been implicated as a promoter of the inflammatory response in the metabolic alterations associated with IVD and is thus thought to have a role in IVD degeneration. Pathological starvation, obesity and adipokine dysregulation can result in immunometabolic alterations, which could be targeted for the development of new therapeutics.
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12
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Mantripragada VP, Kaplevatsky R, Bova WA, Boehm C, Obuchowski NA, Midura RJ, Muschler GF. Influence of Glucose Concentration on Colony-Forming Efficiency and Biological Performance of Primary Human Tissue-Derived Progenitor Cells. Cartilage 2021; 13:95S-106S. [PMID: 32100548 PMCID: PMC8804831 DOI: 10.1177/1947603520906605] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Glucose concentrations used in current cell culture methods are a significant departure from physiological glucose levels. The study focuses on comparing the effects of glucose concentrations on primary human progenitors (connective tissue progenitors [CTPs]) used for cartilage repair. DESIGN Cartilage- (Outerbridge grade 1, 2, 3; superficial and deep zone cartilage), infrapatellar fatpad-, synovium-, and periosteum-derived cells were obtained from 63 patients undergoing total knee arthroplasty and cultured simultaneously in fresh chondrogenic media containing 25 mM glucose (HGL) or 5 mM glucose (NGL) for pairwise comparison. Automated ASTM-based quantitative image analysis was used to determine colony-forming efficiency (CFE), effective proliferation rates (EPR), and sulfated-proteoglycan (GAG-ECM) staining of the CTPs across tissue sources. RESULTS HGL resulted in increased cell cultures with CFE = 0 compared with NGL in all tissue sources (P = 0.049). The CFE in NGL was higher than HGL for superficial cartilage (P < 0.001), and contrary for synovium-derived CTPs (P = 0.046) when CFE > 0. EPR of the CTPs did not differ between the media in the 6-day assay time period (P = 0.082). The GAG-ECM area of the CTPs and their progeny was increased in presence of HGL (P = 0.027). CONCLUSION Glucose concentration is critical to progenitor's physiology and should be taken into account in the setting of protocols for clinical or in vitro cell expansion strategies.
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Affiliation(s)
- Venkata P. Mantripragada
- Department of Biomedical Engineering,
Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA,Venkata P. Mantripragada, Department of
Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, 9500 Euclid
Avenue, ND3-30, Cleveland, OH 44195, USA.
| | | | - Wes A. Bova
- Department of Biomedical Engineering,
Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Cynthia Boehm
- Department of Biomedical Engineering,
Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Nancy A. Obuchowski
- Department of Quantitative Health
Science, Cleveland Clinic, Cleveland, OH, USA
| | - Ronald J. Midura
- Department of Biomedical Engineering,
Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - George F. Muschler
- Department of Biomedical Engineering,
Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA,Department of Orthopedic Surgery,
Cleveland Clinic, Cleveland, OH, USA
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13
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Hong H, Xiao J, Guo Q, Du J, Jiang Z, Lu S, Zhang H, Zhang X, Wang X. Cycloastragenol and Astragaloside IV activate telomerase and protect nucleus pulposus cells against high glucose-induced senescence and apoptosis. Exp Ther Med 2021; 22:1326. [PMID: 34630680 PMCID: PMC8495541 DOI: 10.3892/etm.2021.10761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 08/02/2021] [Indexed: 12/24/2022] Open
Abstract
In diabetes-induced intervertebral disc degeneration (Db-IVDD), senescence and apoptosis of nucleus pulposus cells (NPCs) are major contributing factors. Telomere attrition and telomerase downregulation are some of the main reasons for senescence and eventual apoptosis. The derivatives of the Chinese herb Astragalus membranaceus, Cycloastragenol (CAG) and Astragaloside IV (AG-IV), are reportedly effective telomerase activators against telomere shortening; however, their effect in Db-IVDD have not been explored. The present study simultaneously investigated the regulation of these derivatives on senescence, apoptosis, telomeres and telomerase a model of high-glucose (HG)-induced stress using rat primary NPCs. The NPCs were stimulated with HG (50 mM) to evoke HG-induced stress, and the effects of CAG and AG-IV were observed on: i) The expression level of senescence marker p16; ii) β-Gal staining; iii) the expression levels of apoptosis markers cleaved-caspase 3 (c-C3), BAX and Bcl-2; iv) telomerase activation with telomerase reverse transcriptase (TERT) mRNA and protein expression, while telomere length was measured with reverse transcription-quantitative PCR. Cell proliferation was determined using the Cell Counting Kit-8 assay. Results demonstrated an upregulation in the expression levels of p16, c-C3 and BAX, and increased β-Gal staining; while the expression level of Bcl-2 was downregulated in a concentration-dependent manner. Pre-treatment of the NPCs with CAG and AG-IV downregulated the protein expression levels of p16, c-C3 and BAX, and decreased the percentage of β-Gal and FITC staining; while upregulating the Bcl-2 expression. These effects protected the cells from HG stress-induced senescence and apoptosis. HG also downregulated the expression profile of TERT and shortened the telomere length in a glucose concentration-dependent manner. While pretreatment with CAG and AG-IV upregulated TERT expression and ameliorated the telomere attrition. CAG and AG-IV also increased cell proliferation and improved cell morphology in HG conditions. Overall, these findings indicated that CAG and AG-IV suppressed HG stress-induced senescence and apoptosis, in addition to enhancing telomerase activation and lengthening of the Telomere. Therefore, CAG and AG-IV prolonged the replicative capability and longevity of the NPCs and they have the potential to be therapeutic agents in Db-IVDD.
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Affiliation(s)
- Haofeng Hong
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Second Medical School of Wenzhou Medical University, Hangzhou, Zhejiang 310000, P.R. China.,Zhejiang Provincial Key Laboratory of Orthopedics, Wenzhou, Zhejiang 325027, P.R. China
| | - Jian Xiao
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Second Medical School of Wenzhou Medical University, Hangzhou, Zhejiang 310000, P.R. China.,Zhejiang Provincial Key Laboratory of Orthopedics, Wenzhou, Zhejiang 325027, P.R. China
| | - Quanquan Guo
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Second Medical School of Wenzhou Medical University, Hangzhou, Zhejiang 310000, P.R. China
| | - Jinhui Du
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Second Medical School of Wenzhou Medical University, Hangzhou, Zhejiang 310000, P.R. China
| | - Zhichen Jiang
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Second Medical School of Wenzhou Medical University, Hangzhou, Zhejiang 310000, P.R. China
| | - Sisi Lu
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Second Medical School of Wenzhou Medical University, Hangzhou, Zhejiang 310000, P.R. China
| | - Hongyuan Zhang
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Second Medical School of Wenzhou Medical University, Hangzhou, Zhejiang 310000, P.R. China
| | - Xiaolei Zhang
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Second Medical School of Wenzhou Medical University, Hangzhou, Zhejiang 310000, P.R. China.,Zhejiang Provincial Key Laboratory of Orthopedics, Wenzhou, Zhejiang 325027, P.R. China.,Chinese Orthopedic Regenerative Medicine Society, Hangzhou, Zhejiang 310000, P.R. China
| | - Xiangyang Wang
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Second Medical School of Wenzhou Medical University, Hangzhou, Zhejiang 310000, P.R. China.,Zhejiang Provincial Key Laboratory of Orthopedics, Wenzhou, Zhejiang 325027, P.R. China
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14
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Lo WC, Chang CC, Chan CH, Singh AK, Deng YH, Lin CY, Tsao W, Chien ST, Lin CH, Deng WP. Platelet-Derived Biomaterials Exert Chondroprotective and Chondroregenerative Effects on Diabetes Mellitus-Induced Intervertebral Disc Degeneration. Life (Basel) 2021; 11:1054. [PMID: 34685425 PMCID: PMC8540580 DOI: 10.3390/life11101054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/24/2021] [Accepted: 10/03/2021] [Indexed: 11/16/2022] Open
Abstract
Complications of diabetes mellitus (DM) range from acute to chronic conditions, leading to multiorgan disorders such as nephropathy, retinopathy, and neuropathy. However, little is known about the influence of DM on intervertebral disc degeneration (IVDD). Moreover, traditional surgical outcomes in DM patients have been found poor, and to date, no definitive alternative treatment exists for DM-induced IVDD. Recently, among various novel approaches in regenerative medicine, the concentrated platelet-derived biomaterials (PDB), which is comprised of transforming growth factor-β1 (TGF-β1), platelet-derived growth factor (PDGF), etc., have been reported as safe, biocompatible, and efficacious alternatives for various disorders. Therefore, we initially investigated the correlations between DM and IVDD, through establishing in vitro and in vivo DM models, and further evaluated the therapeutic effects of PDB in this comorbid pathology. In vitro model was established by culturing immortalized human nucleus pulposus cells (ihNPs) in high-glucose medium, whereas in vivo DM model was developed by administering streptozotocin, nicotinamide and high-fat diet to the mice. Our results revealed that DM deteriorates both ihNPs and IVD tissues, by elevating reactive oxygen species (ROS)-induced oxidative stress, inhibiting chondrogenic markers and disc height. Contrarily, PDB ameliorated IVDD by restoring cellular growth, chondrogenic markers and disc height, possibly through suppressing ROS levels. These data imply that PDB may serve as a potential chondroprotective and chondroregenerative candidate for DM-induced IVDD.
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Affiliation(s)
- Wen-Cheng Lo
- School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Chun-Chao Chang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 110301, Taiwan;
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Chun-Hao Chan
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-H.C.); (A.K.S.); (Y.-H.D.)
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-Y.L.); (W.T.); (S.-T.C.)
| | - Abhinay Kumar Singh
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-H.C.); (A.K.S.); (Y.-H.D.)
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-Y.L.); (W.T.); (S.-T.C.)
| | - Yue-Hua Deng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-H.C.); (A.K.S.); (Y.-H.D.)
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-Y.L.); (W.T.); (S.-T.C.)
| | - Chia-Ying Lin
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-Y.L.); (W.T.); (S.-T.C.)
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Wen Tsao
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-Y.L.); (W.T.); (S.-T.C.)
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Shaw-Ting Chien
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-Y.L.); (W.T.); (S.-T.C.)
| | - Chang-Hsien Lin
- Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan;
- Department of Family Medicine, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Win-Ping Deng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-H.C.); (A.K.S.); (Y.-H.D.)
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (C.-Y.L.); (W.T.); (S.-T.C.)
- Graduate Institute of Basic Medicine, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Department of Life Science, Tunghai University, Taichung 407224, Taiwan
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15
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The REDD1/TXNIP Complex Accelerates Oxidative Stress-Induced Apoptosis of Nucleus Pulposus Cells through the Mitochondrial Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:7397516. [PMID: 34603601 PMCID: PMC8481043 DOI: 10.1155/2021/7397516] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 08/07/2021] [Indexed: 01/19/2023]
Abstract
The death of nucleus pulposus (NP) cells is an important cause of intervertebral disc (IVD) degeneration. Redox disturbance caused by dysfunctional mitochondria has been considered as a vital risk for NP cell survival. It is valuable to identify key proteins maintaining mitochondrial function in NP cells. A previous study found that regulated in development and DNA damage response 1 (REDD1) are upregulated during intervertebral disc degeneration and that REDD1 can cause NP cell apoptosis. Thus, the present study further explores the effect of REDD1 on IVD degeneration. Our results showed that REDD1 promotes NP cell apoptosis via the mitochondrial pathway. Importantly, REDD1 formed a complex with TXNIP to strengthen its own action, and the combination was consolidated under H2O2-induced oxidative stress. The combined inhibition of the REDD1/TXNIP complex was better than that of REDD1 or TXNIP alone in restoring cell proliferation and accelerating apoptosis. Moreover, p53 acts as the transcription factor of REDD1 to regulate the REDD1/TXNIP complex under oxidative stress. Altogether, our results demonstrated that the REDD1/TXNIP complex mediated H2O2-induced human NP cell apoptosis and IVD degeneration through the mitochondrial pathway. Interferences on these sites to achieve mitochondrial redox homeostasis may be a novel therapeutic strategy for oxidative stress-associated IVD degeneration.
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16
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Ballasy NN, Jadli AS, Edalat P, Kang S, Fatehi Hassanabad A, Gomes KP, Fedak PWM, Patel VB. Potential role of epicardial adipose tissue in coronary artery endothelial cell dysfunction in type 2 diabetes. FASEB J 2021; 35:e21878. [PMID: 34469050 DOI: 10.1096/fj.202100684rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 11/11/2022]
Abstract
Cardiovascular disease is the most prevalent cause of morbidity and mortality in diabetes. Epicardial adipose tissue (EAT) lies in direct contact with the myocardium and coronary arteries and can influence cardiac (patho) physiology through paracrine signaling pathways. This study hypothesized that the proteins released from EAT represent a critical molecular link between the diabetic state and coronary artery endothelial cell dysfunction. To simulate type 2 diabetes-associated metabolic and inflammatory status in an ex vivo tissue culture model, human EAT samples were treated with a cocktail composed of high glucose, high palmitate, and lipopolysaccharide (gplEAT) and were compared with control EAT (conEAT). Compared to conEAT, gplEAT showed a markedly increased gene expression profile of proinflammatory cytokines, corroborating EAT inflammation, a hallmark feature observed in patients with type 2 diabetes. Luminex assay of EAT-secretome identified increased release of various proinflammatory cytokines, including tumor necrosis factor-alpha (TNF-alpha), interferon-alpha 2 (IFNA2), interleukin 1 beta (IL1B), interleukin 5 (IL5), interleukin 13 (IL13), and CCL5, among others, in response to high glucose, high palmitate, and lipopolysaccharide. Conditioned culture media was used to collect the concentrated proteins (CPs). In response to gplEAT-CPs, human coronary artery endothelial cells (HCAECs) exhibited an inflammatory endothelial cell phenotype, featuring a significantly increased gene expression of proinflammatory cytokines and cell surface expression of VCAM-1. Moreover, gplEAT-CPs severely decreased Akt-eNOS signaling, nitric oxide production, and angiogenic potential of HCAECs, when compared with conEAT-CPs. These findings indicate that EAT inflammation may play a key role in coronary artery endothelial cell dysfunction in type 2 diabetes.
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Affiliation(s)
- Noura N Ballasy
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Anshul S Jadli
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Pariya Edalat
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Sean Kang
- Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada.,Section of Cardiac Surgery, Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Ali Fatehi Hassanabad
- Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada.,Section of Cardiac Surgery, Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Karina P Gomes
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Paul W M Fedak
- Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada.,Section of Cardiac Surgery, Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Vaibhav B Patel
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
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17
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Yao M, Zhang J, Li Z, Bai X, Ma J, Li Y. Liraglutide Protects Nucleus Pulposus Cells Against High-Glucose Induced Apoptosis by Activating PI3K/Akt/ mTOR/Caspase-3 and PI3K/Akt/GSK3β/Caspase-3 Signaling Pathways. Front Med (Lausanne) 2021; 8:630962. [PMID: 33681258 PMCID: PMC7933515 DOI: 10.3389/fmed.2021.630962] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/25/2021] [Indexed: 12/11/2022] Open
Abstract
Background and Objective: Diabetes mellitus (DM) is reportedly a significant risk factor for intervertebral disc degeneration (IDD). Incretin system and particularly glucagon-like peptide 1 (GLP-1) because of its glucose-lowering effects has become an important target in therapeutic strategies of type 2 diabetes (T2D). Liraglutide is a GLP-1 receptor (GLP-1R) agonist with glucoregulatory and insulinotropic functions as well as regulatory functions on cell proliferation, differentiation, and apoptosis. However, little is known on the roles and signaling pathways of apoptosis protecting effects of liraglutide in IDD. This study aimed to investigate the potential protective effects of liraglutide against high glucose-induced apoptosis of nucleus pulposus cells (NPCs) and the possible involved signaling pathways. Methods: The human NPCs were incubated with 100 nM liraglutide alone or in combination with LY294002 (PI3K inhibitor), rapamycin (mTOR inhibitor), and SB216763 (GSK3β inhibitor) in a high glucose culture for 48 h. The four groups were assessed further for apoptosis and genes expressions. The apoptotic effect was evaluated by flow cytometry and further confirmed by cell death detection enzyme-linked immunoassay plus (ELISAPLUS). The gene and protein expression levels were assessed by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting techniques. The results were comparatively assessed between the four groups. Results: The results confirmed the presence of GLP-1R in the NPCs indicating that liraglutide inhibited the high glucose-induced apoptosis, which was blocked by silencing GLP-1R with siRNA. Moreover, liraglutide stimulated the phosphorylation of Akt, mTOR and GSK3β. Treatment with LY294002 significantly increased the apoptosis of NPCs and reduced the levels of their downstream substrates (p-AKT, p-mTOR, and p-GSK3β). Further assessments revealed that activation of mTOR and GSK3β was almost completely inhibited by rapamycin and SB216763, respectively, which significantly increased the caspase-3 levels. Conclusion: Liraglutide could protect NPCs against high glucose-induced apoptosis by activating the PI3K/AKT/mTOR/caspase-3 and PI3K/AKT/GSK3β/caspase-3 signaling pathways.
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Affiliation(s)
- Mingyan Yao
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China.,Department of Endocrinology, Baoding No.1 Central Hospital, Baoding, China
| | - Jing Zhang
- Department of Cardiology, Affiliated Hospital of Hebei University, Baoding, China
| | - Zhihong Li
- Department of Endocrinology, Baoding No.1 Central Hospital, Baoding, China
| | - Xiaoliang Bai
- Department of Orthopedics, Baoding No.1 Central Hospital, Baoding, China
| | - Jinhui Ma
- Department of Endocrinology, Affiliated Hospital of Hebei University, Baoding, China
| | - Yukun Li
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
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18
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Mahmoud M, Kokozidou M, Auffarth A, Schulze-Tanzil G. The Relationship between Diabetes Mellitus Type II and Intervertebral Disc Degeneration in Diabetic Rodent Models: A Systematic and Comprehensive Review. Cells 2020; 9:cells9102208. [PMID: 33003542 PMCID: PMC7600368 DOI: 10.3390/cells9102208] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 12/13/2022] Open
Abstract
The number of diabetic patients grows constantly worldwide. Many patients suffer simultaneously from diabetes mellitus type 2 (T2DM) and intervertebral disc disease (IVDD), suggesting a strong link between T2DM and IVDD. T2DM rodent models provide versatile tools to study this interrelation. We hypothesized that the previously achieved studies in rodents approved it. Performing a search in the publicly available electronic databases according to our inclusion (e.g., experimental study with clearly outlined methods investigating IVDD in diabetic rodent models) and exclusion (e.g., non-experimental) criteria, we included 23 studies from 1992 to 2020 analyzing different aspects of IVDD in diabetic rodents, such as on pathogenesis (e.g., effects of hyperglycemia on IVD cells, sirtuin (SIRT)1/p53 axis in the interrelation between T2DM and IVDD), risk factors (e.g., high content of advanced glycation end-products (AGEs) in modern diets), therapeutical approaches (e.g., insulin-like growth factor (IGF-I)), and prophylaxis. Regarding their quality, 12 studies were classified as high, six as moderate, and five as low. One strong, 18 moderate, and three mild evidences of the link between DM and IVDD in rodents were found, while only one study has not approved this link. We concluded that T2DM has a devastating effect on IVD, particularly in advanced cases, which needs to be further evaluated.
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Affiliation(s)
- Mohamed Mahmoud
- Department of Anatomy Paracelsus Medical University, Nuremberg and Salzburg, 90419 Nuremberg, Germany; (M.M.); (M.K.)
| | - Maria Kokozidou
- Department of Anatomy Paracelsus Medical University, Nuremberg and Salzburg, 90419 Nuremberg, Germany; (M.M.); (M.K.)
| | - Alexander Auffarth
- Department of Orthopedics and Traumatology, Paracelsus Medical University, 5020 Salzburg, Austria;
| | - Gundula Schulze-Tanzil
- Department of Anatomy Paracelsus Medical University, Nuremberg and Salzburg, 90419 Nuremberg, Germany; (M.M.); (M.K.)
- Correspondence: ; Tel.: +49-(0)-911-398-6772
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19
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MSC-Derived Exosomes Protect Vertebral Endplate Chondrocytes against Apoptosis and Calcification via the miR-31-5p/ATF6 Axis. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 22:601-614. [PMID: 33230460 PMCID: PMC7569190 DOI: 10.1016/j.omtn.2020.09.026] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/21/2020] [Indexed: 12/13/2022]
Abstract
Apoptosis and calcification of endplate chondrocytes (EPCs) can exacerbate intervertebral disc degeneration (IVDD). Mesenchymal stem cell-derived exosomes (MSC-exosomes) are reported to have the therapeutic potential in IVDD. However, the effects and related mechanisms of MSC-exosomes on EPCs are still unclear. We aimed to investigate the role of MSC-exosomes on EPCs with a tert-butyl hydroperoxide (TBHP)-induced oxidative stress cell model and IVDD rat model. First, our study revealed that TBHP could result in apoptosis and calcification of EPCs, and MSC-exosomes could inhibit the detrimental effects. We also found that these protective effects were inhibited after miroRNA (miR)-31-5p levels were downregulated in MSC-exosomes. The target relationship between miR-31-5p and ATF6 was tested. miR-31-5p negatively regulated ATF6-related endoplasmic reticulum (ER) stress and inhibited apoptosis and calcification in EPCs. Our in vivo experiments indicated that sub-endplate injection of MSC-exosomes can ameliorate IVDD; however, after miR-31-5p levels were downregulated in MSC-exosomes, these protective effects were inhibited. In conclusion, MSC-exosomes reduced apoptosis and calcification in EPCs, and the underlying mechanism may be related to miR-31-5p/ATF6/ER stress pathway regulation.
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20
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Zhang X, Chen J, Huang B, Wang J, Shan Z, Liu J, Chen Y, Li S, Fan S, Zhao F. Obesity Mediates Apoptosis and Extracellular Matrix Metabolic Imbalances via MAPK Pathway Activation in Intervertebral Disk Degeneration. Front Physiol 2019; 10:1284. [PMID: 31649558 PMCID: PMC6796795 DOI: 10.3389/fphys.2019.01284] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 09/25/2019] [Indexed: 12/15/2022] Open
Abstract
Obesity may promote intervertebral disc degeneration (IDD) by non-mechanical means, by influencing levels of free fatty acids which could impair cell metabolism. This study aims to establish metabolic factors in obesity-related IDD independent of mechanical loading. In clinical study, we retrospectively reviewed 128 volunteers (73 males, 55 females, aged 29-88 years) and compared their grades of disk degeneration with obesity-related factors such as body weight, BMI, and serum lipid levels. Clinically, the IDD group showed increased age, BMI and serum triglyceride. Triglyceride was a significant risk factor for IDD even after correction for BMI and age (P = 0.007). In obesity animal model, rats were fed a high-fat diet (HFD) in order to study its effects on disk metabolism and apoptosis. HFD rats had significantly higher serum levels of lipids, including triglyceride and non-esterified fatty acid, and showed significantly decreased markers of anabolism, increased catabolism and apoptosis in disk. Finally, rat nucleus pulposus (NP) cells were stimulated in vitro with a fatty acid (palmitic acid, PA) to gauge its effects on cell metabolism and apoptosis. Cell culture studies showed that NP cells exposed to PA showed increased apoptosis for activation of caspase 3, 7, 9, and PARP, which was primarily via the MAPK signal pathway, especially ERK pathway. In conclusion, hypertriglyceridemia can lead to IDD, independently of age and BMI. Hypertriglyceridemia appears to mediate disk cell apoptosis and matrix catabolism primarily via the ERK pathway.
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Affiliation(s)
- Xuyang Zhang
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Jian Chen
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Bao Huang
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Jiasheng Wang
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Zhi Shan
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Junhui Liu
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Yilei Chen
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Shengyun Li
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Shunwu Fan
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Fengdong Zhao
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
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21
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The Sirt1/P53 Axis in Diabetic Intervertebral Disc Degeneration Pathogenesis and Therapeutics. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7959573. [PMID: 31583043 PMCID: PMC6754956 DOI: 10.1155/2019/7959573] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 06/27/2019] [Accepted: 07/29/2019] [Indexed: 12/15/2022]
Abstract
Intervertebral disc degeneration (IDD) is one of the major causes of low back pain. Diabetes is a risk factor for IDD and may aggravate IDD in rats; however, the mechanism is poorly understood. Previously, we demonstrated that apoptosis and senescence were increased in diabetic nucleus pulposus (NP) tissues; in the current study, we found that hyperglycaemia may promote the incidence of apoptosis and senescence in NP cells in vitro. Meanwhile, the acetylation of P53, a master transcription factor of apoptosis and senescence, was also found increased in diabetic NP tissues in vivo as well as in hyperglycaemic NP cells in vitro. Sirt1 is an NAD+-dependent deacetylase, and we showed that the expression of Sirt1 was decreased in NP tissues, while hyperglycaemia could suppress the expression and activity of Sirt1 in NP cells. Furthermore, we demonstrated that butein may inhibit acetylation of P53 and protect NP cells against hyperglycaemia-induced apoptosis and senescence through Sirt1 activation, as the Sirt1 inhibitor Ex527 may counteract the protective effect of butein in hyperglycaemic NP cells. An in vivo study showed that butein could ameliorate the IDD process in diabetic rats, while Sirt1 was increased and acetyl-p53 was decreased in NP tissues in butein-treated rats. These results indicate that the Sirt1/P53 axis is involved in the pathogenesis of diabetic IDD and may serve as a therapeutic target for diabetic IDD.
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22
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Liraglutide inhibits the apoptosis of human nucleus pulposus cells induced by high glucose through PI3K/Akt/caspase-3 signaling pathway. Biosci Rep 2019; 39:BSR20190109. [PMID: 31383790 PMCID: PMC6702359 DOI: 10.1042/bsr20190109] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 07/04/2019] [Accepted: 08/01/2019] [Indexed: 02/05/2023] Open
Abstract
Diabetes mellitus (DM) is a potential etiology of disc degeneration. Glucagon-like peptide-1 (GLP-1) is currently regarded as a powerful treatment option for type 2 diabetes. Apart from the beneficial effects on glycaemic control, GLP-1 has been reported to exert functions in a variety of tissues on modulation of cell proliferation, differentiation, and apoptosis. However, little is known regarding the effects of GLP-1 on nucleus pulposus cells (NPCs). In the present study, we investigated the effects of liraglutide (LIR), a long-lasting GLP-1 analogue, on apoptosis of human NPCs and the underlying mechanisms involved. We confirmed the presence of GLP-1 receptor (GLP-1R) in NPCs. Our data demonstrated that liraglutide inhibited the apoptosis of NPCs induced by high glucose (HG), as detected by Annexin V/Propidium Iodide (PI) and ELISA assays. Moreover, liraglutide down-regulated caspase-3 activity at intermediate concentration (100 nM) for maximum effect. Further analysis suggested that liraglutide suppressed reactive oxygen species (ROS) generation and stimulated the phosphorylation of Akt under HG condition. Pretreatment of cells with the Phosphoinositide 3-kinase (PI3K) inhibitor LY294002 (LY) and small interfering RNAs (siRNAs) GLP-1R abrogated the liraglutide-induced activation of Akt and the protective effects on NPCs' apoptosis. In conclusion, liraglutide could directly protect NPCs against HG-induced apoptosis by inhibiting oxidative stress and activate the PI3K/Akt/caspase-3 signaling pathway via GLP-1R.
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23
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Qi L, Wang R, Shi Q, Yuan M, Jin M, Li D. Umbilical cord mesenchymal stem cell conditioned medium restored the expression of collagen II and aggrecan in nucleus pulposus mesenchymal stem cells exposed to high glucose. J Bone Miner Metab 2019; 37:455-466. [PMID: 30187277 DOI: 10.1007/s00774-018-0953-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/21/2018] [Indexed: 12/16/2022]
Abstract
Diabetes can cause intervertebral disc degeneration by accelerating apoptosis and senescence of nucleus pulposus mesenchymal stem cells (NPMSCs). The aim of this study was to determine the effect of umbilical cord mesenchymal stem cells (UCMSCs) conditioned medium on high glucose (HG) induced degradation of NPMSCs produced extracellular matrix. NPMSCs were isolated from the inner intervertebral disc tissue using type XI collagenase digestion. According to Annexin V/propidium iodide (PI) flow cytometry analysis; HG leads to an increase in the rate of NPMSCs apoptosis. HG injury also resulted in a marked decrease in the percentage of cells in G0/G1 phase and an increase in cells in S and G2/M phases, indicating that HG induces cell cycle arrest of NPMSCs. Treatment with MSC-CM abolished the effect of HG on cell senescence. HG also significantly inhibited collagen II and aggrecan expression in NPMSCs. After MSC-CM treatment, the expression of these two extracellular matrix components was restored. Exposure to HG resulted in phosphorylation of p38 MAPK, while the levels of total p38 MAPK were not affected. When treated with MSC-CM, phosphorylated p38 MAPK levels of NPMSCs were lower than those without CM treatment. Our data also showed that p38 MAPK inhibitor SB203580 can attenuated phosphorylation of p38 MAPK and resumed the collagen II and aggrecan expression in NPMSCs. In summary, this study demonstrated that MSC-CM has the potential to alleviate HG induced extracellular matrix degradation via the p38 MAPK pathway.
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Affiliation(s)
- Lei Qi
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Ran Wang
- Cryomedicine Laboratory, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Qing Shi
- Cryomedicine Laboratory, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Ming Yuan
- Cryomedicine Laboratory, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Min Jin
- Cryomedicine Laboratory, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Dong Li
- Cryomedicine Laboratory, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China.
- Stem Cell and Regenerative Medicine Research Center of Shandong University, Jinan, 250012, Shandong, People's Republic of China.
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24
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Osteogenic protein-1 alleviates high glucose microenvironment-caused degenerative changes in nucleus pulposus cells. Biosci Rep 2019; 39:BSR20190170. [PMID: 30872412 PMCID: PMC6443954 DOI: 10.1042/bsr20190170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 03/11/2019] [Accepted: 03/12/2019] [Indexed: 01/07/2023] Open
Abstract
Increasing evidence has indicated a close relationship between diabetes mellitus (DM) and disc degeneration. As a potential therapeutic growth factor, osteogenic protein-1 (OP-1) has lots of protective effects on the healthy disc cell’s biology. The present study was aimed to investigate the effects of OP-1 on degenerative changes of nucleus pulposus (NP) cells in a high glucose culture. Rat NP cells were cultured in the baseline medium or the high glucose (0.2 M) culture medium. OP-1 was added into the high glucose culture medium to investigate whether its has some protective effects against degenerative changes of NP cells in the high glucose culture. NP cell apoptosis ratio, caspase-3/9 activity, expression of apoptosis-related molecules (Bcl-2, Bax, and caspase-3), matrix macromolecules (aggrecan and collagen II), and matrix remodeling enzymes (MMP-3, MMP-13, and ADAMTS-4), and immuno-staining of NP matrix proteins (aggrecan and collagen II) were evaluated. Compared with the baseline culture, high glucose culture significantly increased NP cell apoptosis ratio, caspase-3/9 activity, up-regulated expression of Bax, caspase-3, MMP-3, MMP-13 and ADAMTS-4, down-regulated expression of Bcl-2, aggrecan and collagen II, and decreased staining intensity of aggrecan and collagen II. However, the results of these parameters were partly reversed by the addition of OP-1 in the high glucose culture. OP-1 can alleviate high glucose microenvironment-induced degenerative changes of NP cells. The present study provides that OP-1 may be promising in retarding disc degeneration in DM patients.
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25
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Zhang B, Zhang J, Zhang C, Zhang X, Ye J, Kuang S, Sun G, Sun X. Notoginsenoside R1 Protects Against Diabetic Cardiomyopathy Through Activating Estrogen Receptor α and Its Downstream Signaling. Front Pharmacol 2018; 9:1227. [PMID: 30450046 PMCID: PMC6224485 DOI: 10.3389/fphar.2018.01227] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 10/08/2018] [Indexed: 01/17/2023] Open
Abstract
Diabetic cardiomyopathy (DCM) leads to heart failure and death in diabetic patients, no effective treatment is available. Notoginsenoside R1 (NGR1) is a novel saponin that is derived from Panax notoginseng and our previous studies have showed cardioprotective and neuroprotective effects of NGR1. However, its role in protecting against DCM remains unexplored. Herein, we examine potential effects of NGR1 on cardiac function of diabetic db/db mice and H9c2 cardiomyocytes treated by advanced glycation end products (AGEs). In vitro experiments revealed that pretreatment with NGR1 significantly decreased AGEs-induced mitochondria injury, limited an increase in ROS, and reduced apoptosis in H9c2 cells. NGR1 eliminated ROS by promoting estrogen receptor α expression, which subsequently activated Akt and Nrf2-mediated anti-oxidant enzymes. In vivo investigation demonstrated that NGR1 significantly reduced serum lipid levels, insulin resistance, the expression of enzymes related to cardiomyopathy, and the expression of apoptotic proteins. Finally, NGR1 improved cardiac dysfunction and attenuated histological abnormalities, as evidenced by elevating ejection fraction and fractional shortening, and reducing cardiac fibrosis. Mechanistically, NGR1 promoted ERα expression, which led to the activation of Akt-Nrf2 signaling and the inhibition of the TGFβ pathway. Collectively, these results strongly indicate that NGR1 exerts cardioprotective effects against DCM through its inhibition of oxidative stress and apoptosis, and eventually suppresses cardiac fibrosis and hypertrophy, which suggests that NGR1 is a potential therapeutic medicine for the treatment of DCM.
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Affiliation(s)
- Bin Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Jingyi Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Chenyang Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Xuelian Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Jingxue Ye
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Shihuan Kuang
- Department of Animal Sciences, Purdue University, West Lafayette, IN, United States
| | - Guibo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
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26
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Zhang Z, Lin J, Tian N, Wu Y, Zhou Y, Wang C, Wang Q, Jin H, Chen T, Nisar M, Zheng G, Xu T, Gao W, Zhang X, Wang X. Melatonin protects vertebral endplate chondrocytes against apoptosis and calcification via the Sirt1-autophagy pathway. J Cell Mol Med 2018; 23:177-193. [PMID: 30353656 PMCID: PMC6307776 DOI: 10.1111/jcmm.13903] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 08/18/2018] [Indexed: 02/06/2023] Open
Abstract
Melatonin is reportedly associated with intervertebral disc degeneration (IDD). Endplate cartilage is vitally important to intervertebral discs in physiological and pathological conditions. However, the effects and mechanism of melatonin on endplate chondrocytes (EPCs) are still unclear. Herein, we studied the effects of melatonin on EPC apoptosis and calcification and elucidated the underlying mechanism. Our study revealed that melatonin treatment decreases the incidence of apoptosis and inhibits EPC calcification in a dose-dependent manner. We also found that melatonin upregulates Sirt1 expression and activity and promotes autophagy in EPCs. Autophagy inhibition by 3-methyladenine reversed the protective effect of melatonin on apoptosis and calcification, while the Sirt1 inhibitor EX-527 suppressed melatonin-induced autophagy and the protective effects of melatonin against apoptosis and calcification, indicating that the beneficial effects of melatonin in EPCs are mediated through the Sirt1-autophagy pathway. Furthermore, melatonin may ameliorate IDD in vivo in rats. Collectively, this study revealed that melatonin reduces EPC apoptosis and calcification and that the underlying mechanism may be related to Sirt1-autophagy pathway regulation, which may help us better understand the association between melatonin and IDD.
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Affiliation(s)
- Zengjie Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Jialiang Lin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Naifeng Tian
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Yaosen Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Yifei Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Chenggui Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Qingqing Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Haiming Jin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Tingting Chen
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Majid Nisar
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Gang Zheng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Tianzhen Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,The Third Affiliated Hospital and Ruian People's Hospital of Wenzhou Medical University, Ruian, Zhejiang Province, China
| | - Weiyang Gao
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Xiaolei Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Chinese Orthopaedic Regenerative Medicine Society, Zhejiang University of School Medicne, HangZhou, China
| | - Xiangyang Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
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27
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Zhang Z, Xu T, Chen J, Shao Z, Wang K, Yan Y, Wu C, Lin J, Wang H, Gao W, Zhang X, Wang X. Parkin-mediated mitophagy as a potential therapeutic target for intervertebral disc degeneration. Cell Death Dis 2018; 9:980. [PMID: 30250268 PMCID: PMC6155159 DOI: 10.1038/s41419-018-1024-9] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/26/2018] [Accepted: 09/03/2018] [Indexed: 12/11/2022]
Abstract
Intervertebral disc degeneration (IDD) is a complicated pathological condition blamed for low back pain. Mitochondrion is of vital importance for cellular homeostasis, and mitochondrial dysfunction is considered to be one of the major causes of cellular damage. Mitophagy is a cellular process to eliminate impaired mitochondria and showed protective effects in various diseases; however, its role in IDD is still not clear. Here, we explore the role of Parkin-mediated mitophagy in IDD. In this study, we found that Parkin was upregulated in degenerative nucleus pulposus (NP) tissues in vivo as well as in TNF-α stimulated NP cells in vitro. Knockdown of Parkin by siRNA showed that Parkin is crucial for apoptosis and mitochondrion homeostasis in NP cells. Further study showed that upregulation of Parkin by salidroside may eliminate impaired mitochondria and promote the survival of NP cells through activation of mitophagy in vitro. In in vivo study, we found that salidroside could inhibit the apoptosis of NP cells and ameliorate the progression of IDD. These results suggested that Parkin is involved in the pathogenesis of IDD and may be a potential therapeutic target for IDD.
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Affiliation(s)
- Zengjie Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Tianzhen Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China.,The Third Affiliated Hospital and Ruian People's Hospital of Wenzhou Medical University, Wansong Road 108#, Ruian, Zhejiang Province, China
| | - Jiaoxiang Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Zhenxuan Shao
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Ke Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Yingchao Yan
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Congcong Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Jialiang Lin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Haoli Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Weiyang Gao
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Xiaolei Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China. .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China. .,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China. .,Chinese Orthopaedic Regenerative Medicine Society, Ruian, China.
| | - Xiangyang Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, West Xueyuan Road 109#, Wenzhou, 325027, Zhejiang Province, China. .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang Province, China. .,The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
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Song Y, Li S, Geng W, Luo R, Liu W, Tu J, Wang K, Kang L, Yin H, Wu X, Gao Y, Zhang Y, Yang C. Sirtuin 3-dependent mitochondrial redox homeostasis protects against AGEs-induced intervertebral disc degeneration. Redox Biol 2018; 19:339-353. [PMID: 30216853 PMCID: PMC6139007 DOI: 10.1016/j.redox.2018.09.006] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 09/03/2018] [Accepted: 09/05/2018] [Indexed: 01/16/2023] Open
Abstract
Intervertebral disc (IVD) degeneration contributes largely to pathoanatomical and degenerative changes of spinal structure that increase the risk of low back pain. Apoptosis in nucleus pulposus (NP) can aggravate IVD degeneration, and increasing studies have shown that interventions targeting NP cell apoptosis can ameliorate IVD degeneration, exhibiting their potential for use as therapeutic strategies. Recent data have shown that advanced glycation end products (AGEs) accumulate in NP tissues in parallel with the progression of IVD degeneration and form a microenvironment of oxidative stress. This study examined whether AGEs accumulation aggravates NP cell apoptosis and IVD degeneration, and explored the mechanisms underlying these effects. We observed that the viability and proliferation of human NP cells were significantly suppressed by AGEs treatment, mainly due to apoptosis. Furthermore, activation of the mitochondrial apoptosis pathway was detected after AGEs treatment. In addition, the molecular data showed that AGEs could significantly aggravate the generation of mitochondrial reactive oxygen species and prolonged activation of the mitochondrial permeability transition pore, as well as the increased level of Bax protein and decreased level of Bcl-2 protein in mitochondria. These effects could be reduced by antioxidant (2-(2,2,6,6-Tetramethylpiperidin-1-oxyl-4-ylamino)-2-oxoethyl) triphenylphosphonium chloride (MitoTEMPO) and Visomitin (SKQ1). Importantly, we identified that impairment of Sirtuin3 (SIRT3) function and the mitochondrial antioxidant network were vital mechanisms in AGEs-induced oxidative stress and secondary human NP cell apoptosis. Finally, based on findings that nicotinamide mononucleotide (NMN) could restore SIRT3 function and rescue human NP cell apoptosis through adenosine monophosphate-activated protein kinase and peroxisome proliferator-activated receptor-γ coactivator 1α (AMPK-PGC-1α) pathway in vitro, we confirmed its protective effect on AGEs-induced IVD degeneration in vivo. In conclusion, our data demonstrate that SIRT3 protects against AGEs-induced human NP cell apoptosis and IVD degeneration. Targeting SIRT3 to improve mitochondrial redox homeostasis may represent a potential therapeutic strategy for attenuating AGEs-associated IVD degeneration.
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Affiliation(s)
- Yu Song
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shuai Li
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wen Geng
- Department of Ophthalmology, Shengjing Hospital, China Medical University, Shenyang 110004, China
| | - Rongjin Luo
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wei Liu
- Department of Orthopaedics, First Hospital of Wuhan, Wuhan 430022, China
| | - Ji Tu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kun Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Liang Kang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Huipeng Yin
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xinghuo Wu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yong Gao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yukun Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Cao Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Sodium-glucose transporter as a novel therapeutic target in disease. Eur J Pharmacol 2018; 822:25-31. [PMID: 29329760 DOI: 10.1016/j.ejphar.2018.01.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 12/02/2017] [Accepted: 01/08/2018] [Indexed: 12/16/2022]
Abstract
Glucose is the primary energy fuel of life. A glucose transporter, the sodium-glucose transporter (SGLT), is receiving attention as a novel therapeutic target in disease. This review summarizes the physiological role of SGLT in cerebral ischemia, cancer, cardiac disease, and intestinal ischemia, which has encouraged analysis of SGLT function. In cerebral ischemia and cardiomyopathy, SGLT-1 is involved in worsening of the injury. In addition, SGLT-1 promotes the development of cancer. On the other hand, SGLT-1 has a protective effect against cardiac and intestinal ischemia. Interestingly, SGLT-1 expression levels are increased in some diseased tissue, such as in cerebral ischemia and cancer. This suggests that SGLT-1 may have an important role in many diseases. This review discusses the potential of SGLT as a target for novel therapeutic agents.
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Subramaniyan SD, Natarajan AK. Citral, A Monoterpene Protect Against High Glucose Induced Oxidative Injury in HepG2 Cell In Vitro-An Experimental Study. J Clin Diagn Res 2017; 11:BC10-BC15. [PMID: 28969111 DOI: 10.7860/jcdr/2017/28470.10377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 06/08/2017] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Diabetes mellitus, a major metabolic disorder associated with hyperglycaemia is one of the leading cause of death in many developed countries. However, use of natural phytochemicals have been proved to have a protective effect against oxidative damage. AIM To investigate the effect of citral, a monoterpene on high glucose induced cytotoxicity and oxidative stress in human hepatocellular liver carcinoma (Hep G2) cell line. MATERIALS AND METHODS Cells were treated with 50 mM concentration of glucose for 24 hours incubation following citral (30 μM) was added to confluent HepG2 cells. Cell viability, Reactive Oxygen Species (ROS) generation, DNA damage, lipid peroxidation, antioxidants and Mitogen Activated Protein Kinases (MAPKs) signaling were assessed in citral and/or high glucose induced HepG2 cells. RESULTS Cells treated with glucose (50 mM), resulted in increased cytotoxicity, ROS generation, DNA damage, lipid peroxidation and depletion of enzymatic and non enzymatic antioxidants. In contrast, treatment with citral (30 μM) significantly decreased cell cytotoxicity, ROS generation, DNA damage, lipid peroxidation and increased antioxidants enzymes in high glucose induced HepG2 cells. In addition, the present study highlighted that high glucose treated cells showed increased expression of Extracellular Signal Regulated Protein Kinase-1 (ERK-1), c-Jun N-terminal Kinase (JNK) and p38 in HepG2 cells. On the other hand treatment with citral significantly suppressed the expression of ERK-1, JNK and p38 in high glucose induced HepG2 cells. CONCLUSION Citral protects against high glucose induced oxidative stress through inhibiting ROS activated MAPK signaling pathway in HepG2 cells.
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Affiliation(s)
- Sri Devi Subramaniyan
- Research Scholar, Department of Biochemistry and Biotechnology, Annamalai University, Chidambaram, Tamil Nadu, India
| | - Ashok Kumar Natarajan
- Assistant Professor, Department of Biochemistry and Biotechnology, Annamalai University, Chidambaram, Tamil Nadu, India
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31
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Song L, Li D, Wang J, Meng C, Cui X. Effects of p38 mitogen-activated protein kinase on lung ischemia-reperfusion injury in diabetic rats. J Surg Res 2017; 216:9-17. [PMID: 28807219 DOI: 10.1016/j.jss.2017.03.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 02/02/2017] [Accepted: 03/23/2017] [Indexed: 11/20/2022]
Abstract
BACKGROUND Lung ischemia-reperfusion injury (LIRI) is a pathologic process that is observed in several clinical conditions, and p38 mitogen-activated protein kinase (MAPK) is involved. Diabetes mellitus (DM) results in an increased incidence of ischemia-induced organ damage. The aims of this study were to examine the effects of DM on LIRI in a rat model of DM and to explore the possible mechanisms in relation to the p38 MAPK pathway. METHODS Forty rats were randomly divided into the following five groups (n = 8 each): a control + sham group, a control + IR group (CIR), a DM + sham group, a DM + IR group (DIR), and a DM + IR + SB203580 group. The control and streptozotocin-induced diabetic rats underwent a sham operation or left hilum occlusion for 90 min followed by reperfusion for 4 h. SB203580 was used to inhibit the p38 MAPK pathway. The pulmonary oxygenation index, inflammatory cytokines in the serum, lung edema, histopathology, oxidant stress, apoptosis, and phosphorylated/total-p38 MAPK protein levels were measured. RESULTS The DIR group displayed greater concentrations of tumor necrosis factor-α, interleukin-6, and intercellular adhesion molecule-1 and increases in the wet weight-to-dry weight ratio, lung injury scores, malondialdehyde levels, and cellular apoptosis, and these effects were accompanied by lower pulmonary oxygenation compared with the CIR group (P < 0.05). In the DIR group, the expression levels of p38 MAPK protein were significantly upregulated compared with those of the CIR group. Additionally, all of these alterations were attenuated in the DM + IR + SB203580 group compared with the DIR group. CONCLUSIONS Diabetes exacerbates LIRI by activating the p38 MAPK pathway.
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Affiliation(s)
- Linlin Song
- Department of Anesthesiology (the Hei Long Jiang Province Key Lab of Research on Anesthesiology and Critical Care Medicine), the Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Di Li
- Department of Anesthesiology (the Hei Long Jiang Province Key Lab of Research on Anesthesiology and Critical Care Medicine), the Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Juan Wang
- Department of Anesthesiology (the Hei Long Jiang Province Key Lab of Research on Anesthesiology and Critical Care Medicine), the Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Chao Meng
- Department of Anesthesiology (the Hei Long Jiang Province Key Lab of Research on Anesthesiology and Critical Care Medicine), the Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Xiaoguang Cui
- Department of Anesthesiology (the Hei Long Jiang Province Key Lab of Research on Anesthesiology and Critical Care Medicine), the Second Affiliated Hospital, Harbin Medical University, Harbin, China.
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