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Liu Z, Zhu J, Liu H, Fu C. Natural products can modulate inflammation in intervertebral disc degeneration. Front Pharmacol 2023; 14:1150835. [PMID: 36874009 PMCID: PMC9978229 DOI: 10.3389/fphar.2023.1150835] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Intervertebral discs (IVDs) play a crucial role in maintaining normal vertebral anatomy as well as mobile function. Intervertebral disc degeneration (IDD) is a common clinical symptom and is an important cause of low back pain (LBP). IDD is initially considered to be associated with aging and abnormal mechanical loads. However, over recent years, researchers have discovered that IDD is caused by a variety of mechanisms, including persistent inflammation, functional cell loss, accelerated extracellular matrix decomposition, the imbalance of functional components, and genetic metabolic disorders. Of these, inflammation is thought to interact with other mechanisms and is closely associated with the production of pain. Considering the key role of inflammation in IDD, the modulation of inflammation provides us with new options for mitigating the progression of degeneration and may even cause reversal. Many natural substances possess anti-inflammatory functions. Due to the wide availability of such substances, it is important that we screen and identify natural agents that are capable of regulating IVD inflammation. In fact, many studies have demonstrated the potential clinical application of natural substances for the regulation of inflammation in IDD; some of these have been proven to have excellent biosafety. In this review, we summarize the mechanisms and interactions that are responsible for inflammation in IDD and review the application of natural products for the modulation of degenerative disc inflammation.
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Affiliation(s)
- Zongtai Liu
- Department of Spine Surgery, First Hospital of Jilin University, Changchun, China.,Department of Orthopedics, Affiliated Hospital of Beihua University, Jilin, China
| | - Jiabo Zhu
- Department of Orthopedics, Affiliated Hospital of Beihua University, Jilin, China
| | - Haiyan Liu
- Department of Orthopedics, Baicheng Central Hospital, Baicheng, China
| | - Changfeng Fu
- Department of Spine Surgery, First Hospital of Jilin University, Changchun, China
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Mu R, Chen B, Bi B, Yu H, Liu J, Li J, He M, Rong L, Liu B, Liu K, Zhu L, Shi X, Shuai Y, Jin L. LIM Mineralization Protein-1 Enhances the Committed Differentiation of Dental Pulp Stem Cells through the ERK1/2 and p38 MAPK Pathways and BMP Signaling. Int J Med Sci 2022; 19:1307-1319. [PMID: 35928717 PMCID: PMC9346378 DOI: 10.7150/ijms.70411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 06/24/2022] [Indexed: 11/23/2022] Open
Abstract
Tissue regeneration is the preferred treatment for dentin and bone tissue defects. Dental pulp stem cells (DPSCs) have been extensively studied for their use in tissue regeneration, including the regeneration of dentin and bone tissue. LIM mineralization protein-1 (LMP-1) is an intracellular non-secretory protein that plays a positive regulatory role in the mineralization process. In this study, an LMP-1-induced DPSCs model was used to explore the effect of LMP-1 on the proliferation and odonto/osteogenic differentiation of DPSCs, as well as the underlying mechanisms. As indicated by the cell counting kit-8 assay, the results showed that LMP-1 did not affect the proliferation of DPSCs. Overexpression of LMP-1 significantly promoted the committed differentiation of DPSCs and vice versa, as shown by alkaline phosphatase activity assay, alizarin red staining, western blot assay, quantitative real-time polymerase chain reaction assay, and in vivo mineralized tissue formation assay. Furthermore, inhibiting the activation of the extracellular signal-regulated kinase 1/2 (ERK1/2), p38 mitogen-activated protein kinase (MAPK), and c-Jun N-terminal kinase (JNK) pathways using specific pathway inhibitors showed that the ERK1/2 and p38 MAPK pathways attenuated the differentiation of DPSCs. Besides, the expression of BMP signaling pathway components were also determined, which suggested that LMP-1 could activate BMP-2/Smad1/5 signaling pathway. Our results not only indicated the underlying mechanism of LMP-1 treated DPSCs but also provided valuable insight into therapeutic strategies in regenerative medicine.
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Affiliation(s)
- Rui Mu
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China.,Stomatology Center, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Guangdong province, Shenzhen 518036, China
| | - Bo Chen
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Bo Bi
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Hongchuan Yu
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Juan Liu
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Junxia Li
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Maodian He
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Liang Rong
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Bingyao Liu
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Ke Liu
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Lei Zhu
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Xiaolei Shi
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Yi Shuai
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
| | - Lei Jin
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, School of Stomatology of Southern Medical University, Clinical Medical School of Nanjing Medical University, Nanjing 210002, China
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3
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Ou D, Liu S, Tong C, Tan H, Yang Y, He C. LIM mineralization protein-1 inhibits IL-1β-induced human chondrocytes injury by altering the NF-κB and MAPK/JNK pathways. Exp Ther Med 2021; 23:61. [PMID: 34934432 PMCID: PMC8649850 DOI: 10.3892/etm.2021.10983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 07/26/2021] [Indexed: 11/05/2022] Open
Abstract
Osteoarthritis (OA) is a common degenerative disease that is associated with the degradation of articular cartilage. Accumulating evidence has confirmed that LIM mineralization protein-1 (LMP-1) is an important agent of bone formation and has been shown to be osteoinductive in various types of disease. However, the underlying mechanisms of LMP-1 in the pathogenesis of OA remain unknown. The present study aimed to evaluate the role and potential mechanism of LMP-1 in IL-1β-stimulated OA chondrocytes. CHON-001 cells were transfected with pcDNA3.1-LMP-1, pcDNA3.1, negative control-small interfering (si)RNA or LMP-1 siRNA for 24 h and then induced by IL-1β for 12 h to establish an OA model in vitro. Cell viability, apoptosis and inflammatory cytokine (IL-6, IL-8 and TNF-α) release were assessed using MTT assay, flow cytometry and ELISA, respectively. The expression levels of LMP-1, cleaved-caspase 3, phosphorylated (p)-p65, p65, p-JNK and JNK were analyzed using reverse transcription-quantitative PCR and western blotting. Overexpression of LMP-1 notably alleviated the IL-1β-induced inflammatory response in CHON-001 cells, as shown by increased cell viability, decreased apoptosis, suppressed expression of cleaved-caspase 3 and a decreased cleaved-caspase 3/caspase 3 ratio. Moreover, IL-1β-induced secretion of IL-6, IL-8 and TNF-α in CHON-001 cells; this was reversed by pcDNA3.1-LMP-1. However, knocking down LMP-1 expression exert opposite effects on the IL-1β-induced inflammatory response in CHON-001 cells, as evidenced by the decreased cell viability, increased apoptosis, enhanced expression of cleaved-caspase 3 and cleaved-caspase 3/caspase 3 ratio and enhanced secretion of IL-6, IL-8 and TNF-α observed. The present data demonstrated that LMP-1 siRNA notably inhibited LMP-1 expression, suppressed cell viability, promoted apoptosis and enhanced cleaved-caspase 3 expression and cleaved-caspase 3/caspase 3 ratio. In addition, LMP-1 siRNA promoted the release of inflammatory factors in CHON-001 cells. It was also found that pcDNA3.1-LMP-1 inhibited p-p65 and p-JNK expression, as well as decreasing the p-p65/p65 and p-JNK/JNK ratio. Nevertheless, there was no significant difference in the mRNA expression levels of p65 and JNK between the groups. Taken together, these findings indicated that overexpression of LMP-1 alleviated IL-1β-induced chondrocytes injury by regulating the NF-κB and MAPK/JNK pathways, suggesting that LMP-1 may be a valuable therapeutic agent for OA treatment.
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Affiliation(s)
- Dijun Ou
- Department of Orthopedics, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Sheng Liu
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Changjun Tong
- Department of Orthopedics, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Hezhong Tan
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Yadong Yang
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Chunlei He
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
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Overexpression of LMP-1 Decreases Apoptosis in Human Nucleus Pulposus Cells via Suppressing the NF- κB Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2020:8189706. [PMID: 33414896 PMCID: PMC7752285 DOI: 10.1155/2020/8189706] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/15/2020] [Accepted: 11/25/2020] [Indexed: 12/15/2022]
Abstract
Intervertebral disc degeneration (IDD) is a prevalent disease characterized by low back pain. Increasing extracellular matrix (ECM) synthesis and decreasing nucleus pulposus cell (NPC) apoptosis are promising strategies to recover degenerated NP. LIM mineralization protein- (LMP-) 1 has anti-inflammatory potential and is a promising gene target for the treatment of NP degeneration. In this study, we measured the expression of LMP-1 in the NP of patients. Then, we constructed LMP-1-overexpressing NPCs using lentiviral vectors and investigated the effects of LMP-1 on cell proliferation, apoptosis, and ECM synthesis in NPCs. The results showed that LMP-1 was highly expressed in the NP of patients. LMP-1 overexpression significantly increased proliferation and decreased apoptosis in NPCs. The expression of collagen II and sulfated glycosaminoglycan (sGAG) in NPCs was also upregulated after LMP-1 was overexpressed. Moreover, we demonstrated that LMP-1 decreased apoptosis of NPCs by inhibiting NF-κB signaling activation. These findings suggest that LMP-1 plays an essential role in mediating apoptosis in NPCs by regulating NF-κB signaling and can be used as a gene target for the treatment of IDD.
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Ou D, Ding W, Tong C, Yi W. Knockdown of Long Non-coding RNA LINC00473 Protects CHON-001 Cells against Interleukin-1β-Induced Cell Injury. Biol Pharm Bull 2020; 44:232-237. [PMID: 33268698 DOI: 10.1248/bpb.b20-00688] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Osteoarthritis (OA) is a chronic joint disease with high prevalence. However, effective treatment options for OA are still lacking. It was previously reported that LINC00473 was upregulated in patients with OA and upregulated LINC00473 might be associated with the progression of OA; however, the role of LINC00473 in OA remains to be investigated. CHON-001 human chondrocyte cells stimulated with 10 ng/mL interleukin (IL)-1β were utilized to mimic OA in vitro. Protein expression, cell apoptosis and cell proliferation of CHON-001 cells were investigated by Western blot, Annexin V and propidium iodide (PI) double staining, cell counting-8 kit assay and immunofluorescence staining respectively. The result indicated IL-1β triggered viability decrease and apoptosis in CHON-001 cells, which was alleviated by LINC00473 knockdown. Meanwhile, IL-1β-induced upregulation of cleaved caspase 3 and Bax were ameliorated by LINC00473 knockdown. Likewise, IL-1β-induced downregulation of X-linked inhibitor of apoptosis protein was alleviated by LINC00473 knockdown. In addition, LINC00473 knockdown protected CHON-001 cells against IL-1β by inhibiting the methylation of LIM mineralization protein (LMP)-1 gene. Moreover, c-Jun N-terminal kinase (JNK)/nuclear factor-kappaB (NF-κB) signaling pathway was proved to be involved in the cell protective effect of LINC00473 knockdown in IL-1β treated CHON-001 cells. Taken together, LINC00473 knockdown defended CHON-001 cells from IL-1β induced cell injury via inhibition of the methylation of LMP-1. Thus, LINC00473 might possibly act as a novel therapeutic target for OA.
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Affiliation(s)
- Dijun Ou
- Department of Orthopedics, Huazhong University of Science and Technology Union Shenzhen Hospital
| | - Wenbin Ding
- Department of Orthopedics, Huazhong University of Science and Technology Union Shenzhen Hospital
| | - Changjun Tong
- Department of Orthopedics, Huazhong University of Science and Technology Union Shenzhen Hospital
| | - Weihong Yi
- Department of Orthopedics, Huazhong University of Science and Technology Union Shenzhen Hospital
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Aaron M, Nadeau G, Ouimet-Grennan E, Drouin S, Bertout L, Beaulieu P, St-Onge P, Shalmiev A, Veilleux LN, Rauch F, Petrykey K, Laverdière C, Sinnett D, Alos N, Krajinovic M. Identification of a single-nucleotide polymorphism within CDH2 gene associated with bone morbidity in childhood acute lymphoblastic leukemia survivors. Pharmacogenomics 2019; 20:409-420. [PMID: 30983502 DOI: 10.2217/pgs-2018-0169] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aim: To identify genetic markers associated with late treatment-related skeletal morbidity in survivors of childhood acute lymphoblastic leukemia (ALL). Patients & methods: To this end, we measured the association between reduction in bone mineral density or vertebral fractures prevalence and variants from 1039 genes derived through whole exome sequencing in 242 childhood ALL survivors. Top-ranking variants were confirmed through genotyping, and further explored with stratified analyses and multivariable models. Results: The minor allele of rs1944294 in CDH2 gene was associated with bone geometrical parameter, trabecular cross-sectional area (p = 0.001). The association was modulated by radiation therapy (p = 0.001) and post-treatment time (p = 0.0002). Conclusion: The variant in CDH2 gene is a potential novel risk factor of bone morbidity in survivors of childhood ALL.
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Affiliation(s)
- Michelle Aaron
- Department of Medicine, Université de Montréal, Montreal, Quebec, H3T 1J4, Canada
| | - Geneviève Nadeau
- Department of Medicine, Université de Montréal, Montreal, Quebec, H3T 1J4, Canada
| | - Erika Ouimet-Grennan
- Department of Medicine, Université de Montréal, Montreal, Quebec, H3T 1J4, Canada
| | - Simon Drouin
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, H3T 1C5, Canada
| | - Laurence Bertout
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, H3T 1C5, Canada
| | - Patrick Beaulieu
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, H3T 1C5, Canada
| | - Pascal St-Onge
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, H3T 1C5, Canada
| | - Albert Shalmiev
- Department of Pharmacology and Physiology, Université de Montréal, Quebec, H3T 1J4, Canada
| | | | - Frank Rauch
- Montreal Shriners Hospital for Children, Montreal, Quebec, H4A 0A9, Canada
| | - Kateryna Petrykey
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, H3T 1C5, Canada.,Department of Pharmacology and Physiology, Université de Montréal, Quebec, H3T 1J4, Canada
| | - Caroline Laverdière
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, H3T 1C5, Canada.,Department of Pediatrics, Université de Montréal, Quebec, H3T 1J4, Canada
| | - Daniel Sinnett
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, H3T 1C5, Canada.,Department of Pediatrics, Université de Montréal, Quebec, H3T 1J4, Canada
| | - Nathalie Alos
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, H3T 1C5, Canada.,Department of Pediatrics, Université de Montréal, Quebec, H3T 1J4, Canada.,Division of Endocrinology, Sainte-Justine University Hospital Center, Montreal, Quebec, H3T 1C5, Canada
| | - Maja Krajinovic
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, H3T 1C5, Canada.,Department of Pharmacology and Physiology, Université de Montréal, Quebec, H3T 1J4, Canada.,Department of Pediatrics, Université de Montréal, Quebec, H3T 1J4, Canada
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Li X, Wang J, Zhan Z, Li S, Zheng Z, Wang T, Zhang K, Pan H, Li Z, Zhang N, Liu H. Inflammation Intensity-Dependent Expression of Osteoinductive Wnt Proteins Is Critical for Ectopic New Bone Formation in Ankylosing Spondylitis. Arthritis Rheumatol 2018; 70:1056-1070. [PMID: 29481736 DOI: 10.1002/art.40468] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 02/20/2018] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To investigate the molecular mechanism underlying inflammation-related ectopic new bone formation in ankylosing spondylitis (AS). METHODS Spinal tissues and sera were collected from patients with AS and healthy volunteers and examined for the expression of Wnt proteins. An in vitro cell culture system mimicking the local inflammatory microenvironment of bone-forming sites was established to study the relationship between inflammation and Wnt expression, the regulatory mechanism of inflammation-induced Wnt expression, and the role of Wnt signaling in new bone formation. Modified collagen-induced arthritis (CIA) and proteoglycan-induced spondylitis (PGIS) animal models were used to confirm the key findings in vivo. RESULTS The levels of osteoinductive Wnt proteins were increased in sera and spinal ligament tissues from patients with AS. Constitutive low-intensity tumor necrosis factor (TNF) stimulation, but not short-term or high-intensity TNF stimulation, induced persistent expression of osteoinductive Wnt proteins and subsequent bone formation through NF-κB (p65) and JNK/activator protein 1 (c-Jun) signaling pathways. Furthermore, inhibition of either the Wnt/β-catenin or Wnt/protein kinase Cδ (PKCδ) pathway significantly suppressed new bone formation. The increased expression of Wnt proteins was confirmed in both the modified CIA and PGIS models. A kyphotic and ankylosing phenotype of the spine was seen during long-term observation in the modified CIA model. Inhibition of either the Wnt/β-catenin or Wnt/PKCδ signaling pathway significantly reduced the incidence and severity of this phenotype. CONCLUSION Inflammation intensity-dependent expression of osteoinductive Wnt proteins is a key link between inflammation and ectopic new bone formation in AS. Activation of both the canonical Wnt/β-catenin and noncanonical Wnt/PKCδ pathways is required for inflammation-induced new bone formation.
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Affiliation(s)
- Xiang Li
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jianru Wang
- The First Affiliated Hospital, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, Guangzhou, China
| | - Zhongping Zhan
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Sibei Li
- Guangzhou Chest Hospital, Guangzhou, China
| | - Zhaomin Zheng
- The First Affiliated Hospital, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, Guangzhou, China
| | | | - Kuibo Zhang
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Hehai Pan
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zemin Li
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Nu Zhang
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hui Liu
- The First Affiliated Hospital, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, Guangzhou, China
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Abend A, Shkedi O, Fertouk M, Caspi LH, Kehat I. Salt-inducible kinase induces cytoplasmic histone deacetylase 4 to promote vascular calcification. EMBO Rep 2017; 18:1166-1185. [PMID: 28588072 PMCID: PMC5494505 DOI: 10.15252/embr.201643686] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 04/18/2017] [Accepted: 04/26/2017] [Indexed: 12/25/2022] Open
Abstract
A pathologic osteochondrogenic differentiation of vascular smooth muscle cells (VSMCs) promotes arterial calcifications, a process associated with significant morbidity and mortality. The molecular pathways promoting this pathology are not completely understood. We studied VSMCs, mouse aortic rings, and human aortic valves and showed here that histone deacetylase 4 (HDAC4) is upregulated early in the calcification process. Gain- and loss-of-function assays demonstrate that HDAC4 is a positive regulator driving this pathology. HDAC4 can shuttle between the nucleus and cytoplasm, but in VSMCs, the cytoplasmic rather than the nuclear activity of HDAC4 promotes calcification, and a nuclear-localized mutant of HDAC4 fails to promote calcification. The cytoplasmic location and function of HDAC4 is controlled by the activity of salt-inducible kinase (SIK). Pharmacologic inhibition of SIK sends HDAC4 to the nucleus and inhibits the calcification process in VSMCs, aortic rings, and in vivo In the cytoplasm, HDAC4 binds and its activity depends on the adaptor protein ENIGMA (Pdlim7) to promote vascular calcification. These results establish a cytoplasmic role for HDAC4 and identify HDAC4, SIK, and ENIGMA as mediators of vascular calcification.
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Affiliation(s)
- Alon Abend
- The Rappaport Institute and the Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Omer Shkedi
- The Rappaport Institute and the Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Michal Fertouk
- The Rappaport Institute and the Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
- Department of Cardiac Surgery, Rambam Medical Center, Haifa, Israel
| | - Lilac H Caspi
- The Rappaport Institute and the Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Izhak Kehat
- The Rappaport Institute and the Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
- Department of Cardiology and the Clinical Research Institute at Rambam, Rambam Medical Center, Haifa, Israel
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9
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Cho YC, Kim YR, Kim BR, Bach TT, Cho S. Thunbergia alata inhibits inflammatory responses through the inactivation of ERK and STAT3 in macrophages. Int J Mol Med 2016; 38:1596-1604. [DOI: 10.3892/ijmm.2016.2746] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 09/05/2016] [Indexed: 11/06/2022] Open
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10
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Cho YC, Cho S. c-Jun N-terminal kinase-mediated anti-inflammatory effects of Garcinia subelliptica in macrophages. Mol Med Rep 2016; 13:2293-300. [PMID: 26781201 DOI: 10.3892/mmr.2016.4791] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 12/23/2015] [Indexed: 11/06/2022] Open
Abstract
Garcinia plants have been traditionally used to treat inflammatory diseases, such as skin infections and pain, in many regions including South‑East Asia. Garcinia subelliptica, a plant of the Garcinia species widely distributed from Japan to Thailand, has been reported to contain components similar to other Garcinia plants that exhibit anti‑inflammatory effects. The present study aimed to explore the anti‑inflammatory effects of ethanol extracts of Garcinia subelliptica (EGS) in macrophages, as there are no previous systemic studies that have investigated the effects of Garcinia subelliptica on inflammation. Non‑cytotoxic concentrations of EGS (≤200 µg/ml) were observed to reduce nitric oxide production by modulating iNOS expression in lipopolysaccharide (LPS)‑stimulated RAW 264.7 macrophages. The expression of cyclooxygenase‑2, the enzyme responsible for the production of prostaglandin E2, was notably reduced by EGS. EGS treatment inhibited the production of pro‑inflammatory cytokines, including IL‑6 and IL‑1β, however, not TNF‑α. Reduced production of inflammatory mediators by EGS was followed by reduced phosphorylation of c‑Jun N‑terminal kinase (JNK) however, not of other mitogen‑activated protein kinases and nuclear factor‑κB. These results indicate that EGS selectively inhibits the excessive production of inflammatory mediators in LPS‑stimulated murine macrophages by reducing the activation of JNK, suggesting that EGS is a candidate for modulating severe inflammation.
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Affiliation(s)
- Young-Chang Cho
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung‑Ang University, Seoul 156‑756, Republic of Korea
| | - Sayeon Cho
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung‑Ang University, Seoul 156‑756, Republic of Korea
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11
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Pan H, Li X, Wang J, Zhang K, Yang H, Li Z, Zheng Z, Liu H. LIM Mineralization Protein-1 Enhances Bone Morphogenetic Protein-2-Mediated Osteogenesis Through Activation of ERK1/2 MAPK Pathway and Upregulation of Runx2 Transactivity. J Bone Miner Res 2015; 30:1523-35. [PMID: 25677945 DOI: 10.1002/jbmr.2481] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 01/31/2015] [Accepted: 02/10/2015] [Indexed: 12/16/2022]
Abstract
LIM mineralization protein-1 (LMP-1) is an intracellular regulator of bone formation. Upregulation of bone morphogenetic proteins (BMPs) and stabilization of BMP/Smad signaling have been proven to be the key mechanisms through which LMP-1 enhances osteogenesis. However, how LMP-1 regulates BMPs expression and related bone formation remains unclear. In this study, a LMP-1-induced osteogenesis cell model was used to study the molecular action of LMP-1 on BMP-2 expression and bone formation. The results show that overexpression of LMP-1 significantly increases, whereas downregulation of endogenous LMP-1 decreases BMP-2 expression and bone formation. Antagonism of BMP-2 with noggin or short hairpin BMP-2 significantly attenuates the osteoinductive effect of LMP-1, suggesting that the osteoinductive effect of LMP-1 is mediated by BMP-2. LMP-1 regulation of BMP-2 is found to occur at the transcription level using a luciferase reporter assay with a reporter construct containing a BMP-2 promoter. A promoter deletion assay reveals that -1000/-500 bp is the key regulated region by LMP-1. A Runx2-binding site is then located at -934/-920 bp and confirmed by luciferase assay using a reporter construct containing repeats of this Runx2-binding site and the site-directed mutagenesis analysis. Overexpression of LMP-1 significantly increases Runx2 expression. Downregulation of Runx2 expression significantly decreases BMP-2 promoter activity and BMP-2 expression. A ChIP assay demonstrates that LMP-1 increases the interaction between Runx2 and BMP-2 promoter. A luciferase reporter assay using the OSE2 promoter containing a Runx2-binding site confirms that Runx2 transactivity can be upregulated by LMP-1. Moreover, inhibiting the activation of different pathways with specific pathway inhibitors reveals that ERK1/2 MAPK activation is essential for LMP-1-induced upregulation of Runx2 transactivity and subsequent BMP-2 expression. In conclusion, our novel findings describe a positive regulatory effect of LMP-1 on BMP-2 expression and BMP-2-mediated osteogenesis. This effect occurs through activation of ERK1/2 pathway and subsequent upregulation of Runx2 transactivity.
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Affiliation(s)
- Hehai Pan
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiang Li
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jianru Wang
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kuibo Zhang
- Department of Orthopedics, The Fifth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hao Yang
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zemin Li
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhaomin Zheng
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hui Liu
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Cho YC, Ju A, Kim BR, Cho S. Anti-inflammatory effects of Crataeva nurvala Buch. Ham. are mediated via inactivation of ERK but not NF-κB. JOURNAL OF ETHNOPHARMACOLOGY 2015; 162:140-147. [PMID: 25571844 DOI: 10.1016/j.jep.2014.12.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Revised: 12/02/2014] [Accepted: 12/24/2014] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Crataeva nurvala Buch. Ham. is an important medicinal plant in India, and its extracts and components were used to treat various inflammatory diseases, such as urinary tract infection, rheumatoid arthritis, and colitis. However, no systemic studies about anti-inflammatory effects of Crataeva nurvala Buch. Ham. and its underlying mechanisms of action have been reported. This study aimed to explore the anti-inflammatory effects of ethanol extracts of Crataeva nurvala Buch. Ham. (ECN). MATERIALS AND METHODS The non-cytotoxic and maximal effective concentration of ECN was determined by measuring the formation of formazan from water-soluble tetrazolium salt in living cells. The inhibitory effect of ECN on nitric oxide (NO) synthesis was measured using Griess reagent, and Enzyme-linked immunosorbent assay (ELISA) was used to measure secreted tumor necrosis factor (TNF)-α and interleukin (IL)-6 protein levels. Furthermore, reverse transcription polymerase chain reaction (RT-PCR) and Western blotting analysis were used to assess the mRNA and protein expression of each inflammatory mediator or relating signaling protein, respectively. RESULTS A non-cytotoxic concentration of ECN (≤200 μg/ml) significantly reduced the production of NO and IL-6, but not TNF-α, in lipopolysaccharides (LPS)-stimulated RAW 264.7 macrophages. Decreased production of NO by ECN was correlated with reduced expression of iNOS at the mRNA and protein levels. However, cyclooxygenase (COX)-2 expressions at mRNA and protein level were not regulated by ECN. The mRNA expression of IL-6 and IL-1β, but not TNF-α, was also inhibited by ECN treatment in LPS-stimulated RAW 264.7 macrophages. Reduced production of inflammatory mediators by ECN was followed by decreased activity of mitogen-activated protein kinases (MAPKs), especially extracellular signal-regulated kinase (ERK), but not nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB). CONCLUSIONS These results indicate that ECN inhibits LPS-induced inflammatory responses via negative regulation of ERK in murine macrophages, suggesting that ECN is a candidate for alleviating severe inflammation.
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Affiliation(s)
- Young-Chang Cho
- College of Pharmacy, Chung-Ang University, Seoul 156-756, Republic of Korea
| | - Anna Ju
- College of Pharmacy, Chung-Ang University, Seoul 156-756, Republic of Korea
| | - Ba Reum Kim
- College of Pharmacy, Chung-Ang University, Seoul 156-756, Republic of Korea
| | - Sayeon Cho
- College of Pharmacy, Chung-Ang University, Seoul 156-756, Republic of Korea.
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Liu H, Pan H, Yang H, Wang J, Zhang K, Li X, Wang H, Ding W, Li B, Zheng Z. LIM mineralization protein-1 suppresses TNF-α induced intervertebral disc degeneration by maintaining nucleus pulposus extracellular matrix production and inhibiting matrix metalloproteinases expression. J Orthop Res 2015; 33:294-303. [PMID: 25336289 DOI: 10.1002/jor.22732] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 08/20/2014] [Indexed: 02/04/2023]
Abstract
Imbalanced metabolism of Nucleus pulposus (NP) extracellular matrix (ECM) is closely correlated to Intervertebral Disc Degenerative Disease. LIM mineralization protein-1 (LMP-1) has been proven to induce sulfated glycosaminoglycan (sGAG) production in NP and have an anti-inflammatory effect in pre-osteoclast. However, whether it has any effect on the NP ECM production and degradation under inflammatory stimulation has not been studied. In the current study, a TNF-α induced cell model was established in vitro. Lentivirus encoding LMP-1 (LV-LMP-1) and short heparin LMP-1 (LV-shLMP-1) were constructed to overexpress and knockdown LMP-1 expression in NP cells. LMP-1 mRNA level was regulated in a dose-dependent manner after transfection. LV-LMP-1 increased whereas LV-shLMP-1 decreased collagen II, aggrecan, versican expression, and sGAG production. LV-LMP-1 abolished while LV-shLMP-1 aggravated TNF-α mediated down-regulation of the above matrix genes via ERK1/2 activation. Moreover, LV-LMP-1 abrogated TNF-α induced MMP-3 and MMP-13 expression via inhibiting p65 translocation and MMP-3 and MMP-13 promoter activity. These results indicated that LMP-1 had an ECM production maintenance effect under inflammatory stimulation. This effect was via up-regulation of matrix genes expression at least partially through ERK1/2 activation, and down-regulation of MMPs expression through NF-κB inhibition.
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Affiliation(s)
- Hui Liu
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58, Zhongshan 2nd Road, 510080, Guangzhou, China
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Cho YC, Lee IS, Seo H, Ju A, Youn D, Kim Y, Choun J, Cho S. Methanol extracts of Euphorbia cooperi inhibit the production of inflammatory mediators by inhibiting the activation of c‑Jun N‑terminal kinase and p38 in murine macrophages. Mol Med Rep 2014; 10:2663-8. [PMID: 25216192 DOI: 10.3892/mmr.2014.2560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 07/22/2014] [Indexed: 11/05/2022] Open
Abstract
Numerous Euphorbiaceae plants have been used for the treatment of diseases, including liver diseases, asthma and rheumatism. The present study evaluated the effect of methanol extracts from Euphorbia cooperi (MEC), a member of the Euphorbiaceae plant family, on the production of inflammatory cytokines interleukin (IL)‑6 and tumor necrosis factor (TNF)‑α, nitric oxide (NO) as well as the activation of mitogen‑activated protein kinase and nuclear factor (NF)‑κB signaling. Non‑cytotoxic concentrations of MEC significantly reduced the production of NO and IL‑6, but not TNF‑α, in lipopolysaccharide (LPS)‑stimulated RAW 264.7 macrophages. The decreased production of NO by MEC was due to alleviated expression of inducible NO synthase. Reporter assays with cells treated with MEC demonstrated reduced activator protein‑1 (AP-1) activity, while NF‑κB activity was not reduced. Furthermore, the phosphorylation levels of c‑Jun N‑terminal kinase (JNK) and p38 were suppressed by MEC while phosphorylation levels of inhibitor of κB were not reduced by MEC, suggesting that MEC‑mediated inactivation of JNK and p38 is the underlying regulatory mechanism for inflammatory mediators in LPS‑stimulated RAW 264.7 macrophages.
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Affiliation(s)
- Young-Chang Cho
- College of Pharmacy, Chung‑Ang University, Seoul 156-756, Republic of Korea
| | - In-Seon Lee
- College of Pharmacy, Chung‑Ang University, Seoul 156-756, Republic of Korea
| | - Huiyun Seo
- College of Pharmacy, Chung‑Ang University, Seoul 156-756, Republic of Korea
| | - Anna Ju
- College of Pharmacy, Chung‑Ang University, Seoul 156-756, Republic of Korea
| | - Deokkyu Youn
- College of Pharmacy, Chung‑Ang University, Seoul 156-756, Republic of Korea
| | - Younghyun Kim
- College of Pharmacy, Chung‑Ang University, Seoul 156-756, Republic of Korea
| | - Jaehee Choun
- College of Pharmacy, Chung‑Ang University, Seoul 156-756, Republic of Korea
| | - Sayeon Cho
- College of Pharmacy, Chung‑Ang University, Seoul 156-756, Republic of Korea
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Liu H, Huang L, Zhang Z, Zhang Z, Yu Z, Chen X, Chen Z, Zen Y, Yang D, Han Z, Shu Y, Dai M, Cao K. LIM mineralization protein-1 inhibits the malignant phenotypes of human osteosarcoma cells. Int J Mol Sci 2014; 15:7037-48. [PMID: 24762763 PMCID: PMC4013677 DOI: 10.3390/ijms15047037] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/04/2014] [Accepted: 03/17/2014] [Indexed: 11/16/2022] Open
Abstract
Osteosarcoma (OS), also known as osteogenic sarcoma, is the most common primary malignancy of bone tumor in children and adolescents. However, its underlying molecular pathogenesis is still only vaguely understood. Recently, LIM mineralization protein-1 (LMP-1) was reported to be an essential positive regulator of osteoblast differentiation. In the present study, we found that the expression of LMP-1 is downregulated in OS tissues compared with adjacent normal tissues. Moreover, we restored the expression of LMP-1 through a recombinant adenovirus. Overexpression of LMP-1 inhibited cell proliferation and invasion, arrested cell cycle progression, and induced apoptosis in vitro. Finally, ectopic LMP-1 expression suppressed the expression of Runx2 and BMP-2 in OS cells. These data demonstrate that LMP-1 is an essential tumor suppressor in the OS pathological process, which will provide a new opportunity for discovering and identifying novel effective treatment strategies.
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Affiliation(s)
- Huiwen Liu
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Lu Huang
- Department of Children Health and Care, Jiangxi Maternal and Child Health Hospital, Nanchang 330006, China.
| | - Zhongzu Zhang
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Zhanming Zhang
- Department of Oncology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Zhiming Yu
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Xiang Chen
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Zhuo Chen
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Yongping Zen
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Dong Yang
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Zhimin Han
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Yong Shu
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Min Dai
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Kai Cao
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
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Yewle JN, Puleo DA, Bachas LG. Bifunctional bisphosphonates for delivering PTH (1-34) to bone mineral with enhanced bioactivity. Biomaterials 2013; 34:3141-9. [DOI: 10.1016/j.biomaterials.2013.01.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 01/08/2013] [Indexed: 01/16/2023]
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Gong X, Celsi G, Carlsson K, Norgren S. Protective Effects ofN-Acetylcysteine Amide (NACA) on Gentamicin-Induced Apoptosis in LLC-PK1 Cells. Ren Fail 2012; 34:487-94. [DOI: 10.3109/0886022x.2012.655684] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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