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Auroux M, Millet M, Merle B, Fontanges E, Duvert F, Gineyts E, Rousseau JC, Borel O, Mercier-Guery A, Lespessailles E, Chapurlat R. Evaluation of circulating microRNA signature in patients with erosive hand osteoarthritis: The HOAmiR study. Osteoarthritis Cartilage 2024:S1063-4584(24)01273-1. [PMID: 38986835 DOI: 10.1016/j.joca.2024.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 06/16/2024] [Accepted: 06/18/2024] [Indexed: 07/12/2024]
Abstract
OBJECTIVES To identify circulating micro-RNAs differentially expressed in patients with erosive hand osteoarthritis (HOA) compared to patients with non-erosive HOA and patients without HOA. METHODS In the screening phase, 768 well-characterized micro-RNAs using Taqman low-density array cards were measured in 30 sera from 10 patients with erosive HOA, 10 patients with non-erosive HOA, and 10 controls without HOA, matched for age and body mass index (BMI). In a second step, we validated the micro-RNAs identified at the screening phase (adjusted p value < 0.05 after false discovery rate correction using Benjamini-Hochberg method and literature review) in larger samples (60 patients with erosive HOA and 60 patients without HOA matched for age and BMI). RESULTS In the screening phase, we identified 21 down-regulated and 4 up-regulated micro-RNAs of interest between erosive HOA and control groups. Among these, 9 micro-RNAs (miR-373-3p, miR-558, miR-607, miR-653-5p, miR-137 and miR448 were down-regulated, and miR-142-3p, miR-144-3p and miR-34a-5p were up-regulated) were previously described in chondrocytes homeostasis or OA. We found only one significantly down-regulated micro-RNA between erosive and non-erosive HOA. In the validation phase, we showed replication of a single micro-RNA the significant downregulation of miR-196-5p, that had been previously identified in the screening phase among patients with erosive HOA compared to those without HOA. After reviewing the literature and the miRNA-gene interaction prediction model, we found that this microRNA could interact with bone homeostasis and HOXC8, which could explain its role in osteoarthritis. CONCLUSIONS We found that miR-196-5p was down-regulated in patients with erosive HOA and some of its targets could explain a role in OA.
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Affiliation(s)
- Maxime Auroux
- Service de Rhumatologie, Hôpital Edouard Herriot, Hospices Civils de Lyon, Université Claude-Bernard Lyon 1, Lyon, France; INSERM U1033, Hopital Edouard Herriot, Lyon, France.
| | | | | | - Elisabeth Fontanges
- Service de Rhumatologie, Hôpital Edouard Herriot, Hospices Civils de Lyon, Université Claude-Bernard Lyon 1, Lyon, France
| | | | | | | | | | - Alexandre Mercier-Guery
- Service de Rhumatologie, Hôpital Edouard Herriot, Hospices Civils de Lyon, Université Claude-Bernard Lyon 1, Lyon, France; INSERM U1033, Hopital Edouard Herriot, Lyon, France
| | | | - Roland Chapurlat
- Service de Rhumatologie, Hôpital Edouard Herriot, Hospices Civils de Lyon, Université Claude-Bernard Lyon 1, Lyon, France; INSERM U1033, Hopital Edouard Herriot, Lyon, France
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Zhang Z, Yu P, Bai L. Hsa_circular RNA_0045474 Facilitates Osteoarthritis Via Modulating microRNA-485-3p and Augmenting Transcription Factor 4. Mol Biotechnol 2024; 66:1174-1187. [PMID: 38206529 DOI: 10.1007/s12033-023-01019-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 12/04/2023] [Indexed: 01/12/2024]
Abstract
Circular RNA (circRNA) influences on the pathological process of osteoarthritis (OA) and may be a potential marker for disease diagnosis. The study was to scrutinize the association of circ_0045474 with OA. Clinical samples of OA patients were collected, and 12 circRNAs derived from KPNA2 gene were examined. CHON-001 cells were stimulated with IL-1β to construct an OA chondrocyte model. miR-485-3p, transcription factor 4 (TCF4) and circ_0045474, type II procollagen (COL2A1), and human collagenase-3 (MMP13) were tested. Furthermore, cell activities were analyzed. The relationship between miR-485-3p, TCF4, and circ_0045474 was determined. The role of circ_0045474 in vivo was further confirmed by constructing an OA mouse model by anterior cruciate ligament transection. circ_0045474 expression was elevated in OA patients. Suppressing circ_0045474 restrained IL-1β-stimulated extracellular matrix degradation, inflammatory cytokine secretion, and chondrocyte apoptosis. Circ_0045474 competitively combined with miR-485-3p, while TCF4 was the target of miR-485-3p. Circ_0045474 modulated IL-1β-stimulated extracellular matrix degradation, inflammatory cytokine secretion, and chondrocyte apoptosis via miR-485-3p/TCF4 axis. Suppressing circ 0045474 was effective to alleviate OA in mice. Silenced circ_0045474 suppresses OA progression in vitro and vivo via miR-485-3p/TCF4 axis. In short, circ_0045474 can be considered a novel therapeutic target for OA.
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Affiliation(s)
- ZhenXing Zhang
- Department of Orthopaedics II, Haining People's Hospital, Haining, 314400, Zhejiang, China
| | - PingHua Yu
- Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - LinGang Bai
- Trauma Center, The Second People's Hospital of Lianyungang, No.41, Hailian East Road, Xinpu District, Lianyungang, 222002, Jiangsu, China.
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Liu C, Zhang L, Zheng X, Zhu J, Jin L, Gao R. Pleiotrophin inhibited chondrogenic differentiation potential of dental pulp stem cells. Oral Dis 2024; 30:1439-1450. [PMID: 36840423 DOI: 10.1111/odi.14554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 02/13/2023] [Accepted: 02/22/2023] [Indexed: 02/26/2023]
Abstract
OBJECTIVE Studies have shown that the levels of pleiotrophin (PTN) are greatly elevated in the synovial fluid and cartilage in osteoarthritis. Therefore, the purpose of this study was to investigate the effect and mechanism of PTN on the chondrogenic differentiation of DPSCs in inflammatory and normal microenvironments. MATERIALS AND METHODS A lentiviral vector was used to deplete or overexpress PTN in DPSCs. The inflammatory microenvironment was simulated in vitro by the addition of IL-1β to the culture medium. The chondrogenic differentiation potential was assessed using Alcian Blue staining and the main chondrogenic markers. A dual-luciferase reporter assay was used to explore the relationship between miR-137 and PTN. RESULTS The results showed that 0.1 ng/mL IL-1β treatment during chondrogenic induction greatly impaired the chondrogenic differentiation of DPSCs. Supplementation with PTN and PTN overexpression inhibited chondrogenic differentiation of DPSCs, while PTN depletion promoted chondrogenic differentiation. MiR-137 negatively regulated the expression of PTN by binding to the 3'UTR of its mRNA. Moreover, miR-137 promoted chondrogenic differentiation of DPSCs in normal and inflammatory microenvironments. CONCLUSION Our results suggest that PTN may play an inhibitory role in the chondrogenic differentiation of DPSCs in normal and inflammatory microenvironments, which is regulated by miR-137.
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Affiliation(s)
- Chang Liu
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Lili Zhang
- Department of General Dentistry and Integrated Emergency Dental Care, Beijing Stomatological Hospital, Capital Medical University, Beijing, China
| | - Xiaoyu Zheng
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Jiaman Zhu
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Luyuan Jin
- Department of General Dentistry and Integrated Emergency Dental Care, Beijing Stomatological Hospital, Capital Medical University, Beijing, China
| | - Runtao Gao
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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Yan M, Zhang D, Yang M. Saikosaponin D alleviates inflammatory response of osteoarthritis and mediates autophagy via elevating microRNA-199-3p to target transcription Factor-4. J Orthop Surg Res 2024; 19:151. [PMID: 38389105 PMCID: PMC10882832 DOI: 10.1186/s13018-024-04607-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 01/31/2024] [Indexed: 02/24/2024] Open
Abstract
OBJECTIVE This study was to investigate the underlying mechanism by which Saikosaponin D (SSD) mitigates the inflammatory response associated with osteoarthritis (OA) and regulates autophagy through upregulation of microRNA (miR)-199-3p and downregulation of transcription Factor-4 (TCF4). METHODS A mouse OA model was established. Mice were intragastrically administered with SSD (0, 5, 10 μmol/L) or injected with miR-199-3p antagomir into the knee. Then, pathological changes in cartilage tissues were observed. Normal chondrocytes and OA chondrocytes were isolated and identified. Chondrocytes were treated with SSD and/or transfected with oligonucleotides or plasmid vectors targeting miR-199-3p and TCF4. Cell viability, apoptosis, inflammation, and autophagy were assessed. miR-199-3p and TCF4 expressions were measured, and their targeting relationship was analyzed. RESULTS In in vivo experiments, SSD ameliorated cartilage histopathological damage, decreased inflammatory factor content and promoted autophagy in OA mice. miR-199-3p expression was downregulated and TCF4 expression was upregulated in cartilage tissues of OA mice. miR-199-3p expression was upregulated and TCF4 expression was downregulated after SSD treatment. Downregulation of miR-199-3p attenuated the effect of SSD on OA mice. In in vitro experiments, SSD inhibited the inflammatory response and promoted autophagy in OA chondrocytes. Downregulation of miR-199-3p attenuated the effect of SSD on OA chondrocytes. In addition, upregulation of miR-199-3p alone inhibited inflammatory responses and promoted autophagy in OA chondrocytes. miR-199-3p targeted TCF4. Upregulation of TCF4 attenuated the effects of miR-199-3p upregulation on OA chondrocytes. CONCLUSIONS SSD alleviates inflammatory response and mediates autophagy in OA via elevating miR-199-3p to target TCF4.
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Affiliation(s)
- Ming Yan
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, No. 128, Changle West Road, Xincheng District, Xi'an City, 710000, Shaanxi Province, China
| | - DaWei Zhang
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, No. 128, Changle West Road, Xincheng District, Xi'an City, 710000, Shaanxi Province, China
| | - Min Yang
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, No. 128, Changle West Road, Xincheng District, Xi'an City, 710000, Shaanxi Province, China.
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Zhou Q, Liu J, Xin L, Hu Y, Qi Y. The Diagnostic Features of Peripheral Blood Biomarkers in Identifying Osteoarthritis Individuals: Machine Learning Strategies and Clinical Evidence. Curr Comput Aided Drug Des 2024; 20:928-942. [PMID: 37594094 DOI: 10.2174/1573409920666230818092427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 07/04/2023] [Accepted: 07/14/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND People with osteoarthritis place a huge burden on society. Early diagnosis is essential to prevent disease progression and to select the best treatment strategy more effectively. In this study, the aim was to examine the diagnostic features and clinical value of peripheral blood biomarkers for osteoarthritis. OBJECTIVE The goal of this project was to investigate the diagnostic features of peripheral blood and immune cell infiltration in osteoarthritis (OA). METHODS Two eligible datasets (GSE63359 and GSE48556) were obtained from the GEO database to discern differentially expressed genes (DEGs). The machine learning strategy was employed to filtrate diagnostic biomarkers for OA. Additional verification was implemented by collecting clinical samples of OA. The CIBERSORT website estimated relative subsets of RNA transcripts to evaluate the immune-inflammatory states of OA. The link between specific DEGs and clinical immune-inflammatory markers was found by correlation analysis. RESULTS Overall, 67 robust DEGs were identified. The nuclear receptor subfamily 2 group C member 2 (NR2C2), transcription factor 4 (TCF4), stromal antigen 1 (STAG1), and interleukin 18 receptor accessory protein (IL18RAP) were identified as effective diagnostic markers of OA in peripheral blood. All four diagnostic markers showed significant increases in expression in OA. Analysis of immune cell infiltration revealed that macrophages are involved in the occurrence of OA. Candidate diagnostic markers were correlated with clinical immune-inflammatory indicators of OA patients. CONCLUSION We highlight that DEGs associated with immune inflammation (NR2C2, TCF4, STAG1, and IL18RAP) may be potential biomarkers for peripheral blood in OA, which are also associated with clinical immune-inflammatory indicators.
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Affiliation(s)
- Qiao Zhou
- Department of Rheumatism Immunity, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, 230031, China
- Department of Geriatrics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, 230061, China
- Institute of Rheumatism Prevention and Treatment of Traditional Chinese Medicine, Anhui Academy of Chinese Medicine Sciences, Hefei, Anhui, 230031, China
- The First Clinical School of Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Jian Liu
- Department of Rheumatism Immunity, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, 230031, China
- Institute of Rheumatism Prevention and Treatment of Traditional Chinese Medicine, Anhui Academy of Chinese Medicine Sciences, Hefei, Anhui, 230031, China
| | - Ling Xin
- Institute of Rheumatism Prevention and Treatment of Traditional Chinese Medicine, Anhui Academy of Chinese Medicine Sciences, Hefei, Anhui, 230031, China
| | - Yuedi Hu
- Institute of Rheumatism Prevention and Treatment of Traditional Chinese Medicine, Anhui Academy of Chinese Medicine Sciences, Hefei, Anhui, 230031, China
- The First Clinical School of Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Yajun Qi
- Institute of Rheumatism Prevention and Treatment of Traditional Chinese Medicine, Anhui Academy of Chinese Medicine Sciences, Hefei, Anhui, 230031, China
- The First Clinical School of Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
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Liu XT, Teng ZQ. Early-Stage Application of Agomir-137 Promotes Locomotor Recovery in a Mouse Model of Motor Cortex Injury. Int J Mol Sci 2023; 24:17156. [PMID: 38138985 PMCID: PMC10742653 DOI: 10.3390/ijms242417156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Traumatic brain injury (TBI) is a significant risk factor for neurodegenerative disorders, and patients often experience varying degrees of motor impairment. MiR-137, a broadly conserved and brain-enriched miRNA, is a key regulator in neural development and in various neurological diseases. Following TBI, the expression of miR-137 is dramatically downregulated. However, whether miR-137 is a therapeutic target for TBI still remains unknown. Here, for the first time, we demonstrate that intranasal administration of miR-137 agomir (a mimic) in the early stage (0-7 days) of TBI effectively inhibits glial scar formation and improves neuronal survival, while early-stage administration of miR-137 antagomir (an inhibitor) deteriorates motor impairment. This study elucidates the therapeutic potential of miR-137 mimics in improving locomotor recovery following motor cortex injury.
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Affiliation(s)
- Xiao-Tian Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China;
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100408, China
| | - Zhao-Qian Teng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China;
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100408, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
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7
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Zheng D, Yang K, Chen T, Lv S, Wang L, Gui J, Xu C. Inhibition of LncRNA SNHG14 protects chondrocyte from injury in osteoarthritis via sponging miR-137. Autoimmunity 2023; 56:2270185. [PMID: 37849308 DOI: 10.1080/08916934.2023.2270185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 10/07/2023] [Indexed: 10/19/2023]
Abstract
Long-chain noncoding small nucleolar RNA host gene 14 (LncRNA SNHG14) is highly expressed in various diseases and promotes diseases progression, but the role and mechanism of LncRNA SNHG14 on targeting miR-137 in promoting osteoarthritis (OA) chondrocyte injury remains unclear. To measure the expression of the LncRNAs SNHG14 and miR-137, cell survival, inflammatory response, chondrocyte apoptosis, and extracellular matrix (ECM) levels, we subjected human chondrocytes to a variety of lipopolysaccharide (LPS) concentrations. To measure the luciferase activity of SNHG14-WT and SNHG14-MUT transfected with miR-137 mimic or miR-NC mimic, luciferase reporter genes were utilized. The results showed that chondrocyte viability was significantly inhibited with LPS treatment and chondrocyte inflammatory response, apoptosis and extracellular matrix degradation were significantly increased. However, the above results were significantly reversed after LncRNA SNHG14 inhibition. The luciferase activity bound to miR-137 was decreased in SNHG14-WT group, but there was no change in SNHG14-mut group, which indicated that LncRNA SNHG14 inhibited miR-137 expression as a miRNA sponge. In conclusion, inhibition of LncRNA SNHG14 attenuates chondrocyte inflammatory response, apoptosis and extracellular matrix degradation by targeting miR-137 in LPS induced chondrocytes.
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Affiliation(s)
- Dong Zheng
- Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, China
| | - Kaiyuan Yang
- Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, China
| | - Tong Chen
- Department of Orthopedics, The Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Songwei Lv
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Liangliang Wang
- Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, China
| | - Jianchao Gui
- Department of Sports Medicine and Joint Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Chao Xu
- Department of Trauma Center, The Affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, China
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Yu YF, Yao PQ, Wang ZK, Xie WW. MiR-137 promotes TLR4/NF-κB pathway activity through targeting KDM4A, inhibits osteogenic differentiation of human bone marrow mesenchymal stem cells and aggravates osteoporosis. J Orthop Surg Res 2023; 18:444. [PMID: 37344864 DOI: 10.1186/s13018-023-03918-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/08/2023] [Indexed: 06/23/2023] Open
Abstract
PURPOSE As the global population ages rapidly, osteoporotic fractures have become an important public health problem. Previous studies have suggested that miR-137 is involved in the regulation of bone formation, but its specific regulatory mechanism remains unclear. In this study, we aimed to explore the expression, role, and regulatory mechanism of miR-137 in the osteogenic differentiation of human bone marrow mesenchymal stem cells (hBMSCs). METHODS hBMSCs were induced into osteoblasts at first, and the expression level of miR-137 at different time points was detected. After knockdown and overexpression of miR-137, the effect of miR-137 on the osteogenic differentiation of hBMSCs was examined through alkaline phosphatase (ALP) staining and Alizarin Red staining. Western blotting was performed to detect the expression of runt-related transcription factor 2 (Runx2), osteocalcin (OCN), and toll-like receptor 4 (TLR4)/nuclear factor-κB (NF-κB) pathway. Bioinformatics websites were used to predict the target binding sites for miR-137 and KDM4A, and the results were validated using luciferase reporter gene experiments. Moreover, the ALP activity, calcium nodule formation, and activation of Runx2, OCN, and TLR4/NF-κB pathways were observed after knockdown of KDM4A. RESULTS The expression of miR-137 decreased during osteogenic differentiation. Knockdown of miR-137 expression increased the osteogenic ability of hBMSCs, while overexpression of it weakened the ability. Through the activation of the TLR4/NF-κB pathway, miR-137 inhibited osteogenic differentiation. KDM4A was identified as a predicted target gene of miR-137. After knocking down KDM4A expression, the osteogenic ability of hBMSCs was diminished, and the TLR4/NF-κB pathway was activated. Furthermore, the osteogenic ability of hBMSCs was partially restored and the activation level of TLR4/NF-κB was reduced after miR-137 knockdown. CONCLUSION MiR-137 enhances the activity of the TLR4/NF-κB pathway by targeting KDM4A, thereby inhibiting the osteogenic differentiation of hBMSCs and exacerbating osteoporosis.
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Affiliation(s)
- Ying-Feng Yu
- Department of Orthopedics, Songshan Lake Central Hospital of Dongguan City, Dongguan, Guangdong, China
| | - Pei-Quan Yao
- Department of Orthopedics, Songshan Lake Central Hospital of Dongguan City, Dongguan, Guangdong, China
| | - Zhi-Kun Wang
- Department of Orthopedics, Songshan Lake Central Hospital of Dongguan City, Dongguan, Guangdong, China
| | - Wen-Wei Xie
- Department of Orthopedics, Songshan Lake Central Hospital of Dongguan City, Dongguan, Guangdong, China.
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Cunningham KY, Hur B, Gupta VK, Arment CA, Wright KA, Mason TG, Peterson LS, Bekele DI, Schaffer DE, Bailey ML, Delger KE, Crowson CS, Myasoedova E, Zeng H, Rodriguez M, Weyand CM, Davis JM, Sung J. Patients with ACPA-positive and ACPA-negative rheumatoid arthritis show different serological autoantibody repertoires and autoantibody associations with disease activity. Sci Rep 2023; 13:5360. [PMID: 37005480 PMCID: PMC10066987 DOI: 10.1038/s41598-023-32428-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 03/27/2023] [Indexed: 04/04/2023] Open
Abstract
Patients with rheumatoid arthritis (RA) can test either positive or negative for circulating anti-citrullinated protein antibodies (ACPA) and are thereby categorized as ACPA-positive (ACPA+) or ACPA-negative (ACPA-), respectively. In this study, we aimed to elucidate a broader range of serological autoantibodies that could further explain immunological differences between patients with ACPA+ RA and ACPA- RA. On serum collected from adult patients with ACPA+ RA (n = 32), ACPA- RA (n = 30), and matched healthy controls (n = 30), we used a highly multiplex autoantibody profiling assay to screen for over 1600 IgG autoantibodies that target full-length, correctly folded, native human proteins. We identified differences in serum autoantibodies between patients with ACPA+ RA and ACPA- RA compared with healthy controls. Specifically, we found 22 and 19 autoantibodies with significantly higher abundances in ACPA+ RA patients and ACPA- RA patients, respectively. Among these two sets of autoantibodies, only one autoantibody (anti-GTF2A2) was common in both comparisons; this provides further evidence of immunological differences between these two RA subgroups despite sharing similar symptoms. On the other hand, we identified 30 and 25 autoantibodies with lower abundances in ACPA+ RA and ACPA- RA, respectively, of which 8 autoantibodies were common in both comparisons; we report for the first time that the depletion of certain autoantibodies may be linked to this autoimmune disease. Functional enrichment analysis of the protein antigens targeted by these autoantibodies showed an over-representation of a range of essential biological processes, including programmed cell death, metabolism, and signal transduction. Lastly, we found that autoantibodies correlate with Clinical Disease Activity Index, but associate differently depending on patients' ACPA status. In all, we present candidate autoantibody biomarker signatures associated with ACPA status and disease activity in RA, providing a promising avenue for patient stratification and diagnostics.
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Affiliation(s)
- Kevin Y Cunningham
- Bioinformatics and Computational Biology Program, University of Minnesota Twin Cities, Minneapolis, MN, 55455, USA
| | - Benjamin Hur
- Microbiome Program, Center for Individualized Medicine, Mayo Clinic, Rochester, MN, 55905, USA
- Division of Surgery Research, Department of Surgery, Mayo Clinic, Rochester, MN, 55905, USA
| | - Vinod K Gupta
- Microbiome Program, Center for Individualized Medicine, Mayo Clinic, Rochester, MN, 55905, USA
- Division of Surgery Research, Department of Surgery, Mayo Clinic, Rochester, MN, 55905, USA
| | - Courtney A Arment
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Kerry A Wright
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Thomas G Mason
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Lynne S Peterson
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Delamo I Bekele
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Daniel E Schaffer
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Marissa L Bailey
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Kara E Delger
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Cynthia S Crowson
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, 55905, USA
| | - Elena Myasoedova
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, 55905, USA
| | - Hu Zeng
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Immunology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Moses Rodriguez
- Department of Neurology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Cornelia M Weyand
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Immunology, Mayo Clinic, Rochester, MN, 55905, USA
| | - John M Davis
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Jaeyun Sung
- Microbiome Program, Center for Individualized Medicine, Mayo Clinic, Rochester, MN, 55905, USA.
- Division of Surgery Research, Department of Surgery, Mayo Clinic, Rochester, MN, 55905, USA.
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA.
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10
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Shao Y, Wang Q, Liu L, Wang J, Wu M. Alleviation of Spinal Cord Injury by MicroRNA 137-Overexpressing Bone Marrow Mesenchymal Stem Cell-Derived Exosomes. TOHOKU J EXP MED 2023; 259:237-246. [PMID: 36596504 DOI: 10.1620/tjem.2022.j118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Bone marrow mesenchymal stem cell (BMMSC) is reported to promote spinal cord injury (SCI) recovery via secreting exosomes to deliver RNAs, proteins, lipids, etc. The present study aimed to investigate the effect of microRNA 137 (miR-137)-overexpressing BMMSC exosomes on SCI rats. BMMSCs were extracted from Sprague-Dawley (SD) rat hind leg bone marrow, and then BMMSC-secreted exosomes were collected. MiR-137 mimic and negative control (NC) mimic were transfected into BMMSCs, and then the corresponding exosomes were collected. Subsequently, SD rats were treated with sham operation + phosphate-buffered saline (PBS), SCI operation + PBS, SCI operation + NC mimic BMMSC exosomes, or SCI operation + miR-137-overexpressing BMMSC exosomes. MiR-137 was downregulated in the spinal cord tissue of SCI rats compared to sham rats. Furthermore, BMMSC exosome injection elevated the Basso, Beattie, and Bresnahan (BBB) scores and neuronal viability and reduced tissue injury and proinflammatory cytokine expression in the spinal cord tissue of SCI rats compared to PBS treatment. Subsequently, miR-137-overexpressing BMMSC exosome injection improved the BBB score and neuron viability, and decreased tissue injury as well as proinflammatory cytokine expression in SCI rats compared to NC-overexpressing BMMSC exosomes. Additionally, miR-137-overexpressing BMMSC exosomes also diminished neuronal apoptosis in the spinal cord tissue of SCI rats compared to NC-overexpressing BMMSC exosomes. In conclusion, miR-137-overexpressing BMMSC exosomes reduce tissue injury and inflammation while improving locomotor capacity and neuronal viability in SCI rats. These findings suggest that miR-137-overexpressing BMMSC exosomes may serve as a treatment option for SCI recovery.
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Affiliation(s)
- Yang Shao
- Department of Sports Medicine, Wuxi Traditional Chinese Medicine Hospital
| | - Qiubo Wang
- Department of Clinical Laboratory, Wuxi 9th People's Hospital Affiliated to Soochow University
| | - Lei Liu
- Department of Sports Medicine, Wuxi Traditional Chinese Medicine Hospital
| | - Jianwei Wang
- Department of Joint Orthopedics, Wuxi Traditional Chinese Medicine Hospital
| | - Mao Wu
- Department of Traumatic Orthopedics, Wuxi Traditional Chinese Medicine Hospital
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11
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Downregulation of miR-137 Facilitates CD4+ T Cell Pyroptosis in Systemic Lupus Erythematosus via Stimulating AMPK Pathway. J Immunol Res 2023; 2023:1241774. [PMID: 36815949 PMCID: PMC9936506 DOI: 10.1155/2023/1241774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/03/2022] [Accepted: 12/17/2022] [Indexed: 02/11/2023] Open
Abstract
Objective From the pathogenic mechanism point of view, systemic lupus erythematosus (SLE) features prominently in T lymphocyte apoptosis. Yet the regulatory mechanism underlying SLE cell apoptosis remains to be explored. This research intends to clarify the role played by miR-137 in SLE and the underlying mechanisms. Methods Twenty SLE patients (SLE group) and twenty healthy controls (control group) were selected, from whom peripheral blood CD4+ T cells were isolated via magnetic-activated cell sorting. Reverse transcription-polymerase chain reaction (RT-PCR) quantified miR-137 and AMP-activated protein kinase (AMPK) in CD4+ T cells. Further, transfection of miR-137 mimics and inhibitors into CD4+ T cells was carried out to alter miR levels. Levels of pyroptosis, apoptosis, and inflammatory- and pyroptosis-related proteins were determined through PI staining, flow cytometry, and Western blotting, respectively. A luciferase reporter gene assay identified the targeting relation between miR-137 and AMPK. Results SLE patients showed downregulated miR-137 and upregulated AMPK in CD4+ T cells than controls. miR-137 upregulation by miR-137 mimic transfection inhibited Jurkat cell pyroptosis and apoptosis at both mRNA and protein levels and suppressed NOD-like receptor thermal protein domain-associated protein 3 (NLRP3) inflammasome activity and pyroptosis-related protein gasdermin D (GSDMD), while miR-137 inhibitor transfection contributed to completely opposite effects. miR-137 directly targeted AMPK, as indicated by the luciferase reporter gene assay. Furthermore, miR-137 inhibitor intervention induced healthy CD4+ T cell pyroptosis and apoptosis via mediating AMPK, whereas miR-137 mimic transfection into CD4+ T cells of SLE patients leads to opposite results. Conclusion Upregulating miR-137 inhibits CD4+ T cell pyroptosis in SLE patients by modulating the AMPK pathway, suggesting the potential diagnostic and therapeutic role of miR-137 in SLE.
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12
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Zhang C, Chen D, Gu Y, Wang T, Wang C. Effects of LncRNA GAS5/miR-137 general anesthesia on cognitive function by TCF4 inflammatory bodies in patients undergoing lumbar spinal canal decompression. Medicine (Baltimore) 2022; 101:e31880. [PMID: 36626439 PMCID: PMC9750600 DOI: 10.1097/md.0000000000031880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Lumbar spinal stenosis is a common orthopedic disease in clinical practice at present. Postoperative cognitive dysfunction (POCD) refers to the phenomenon of impaired memory. However, whether long noncoding RNA (LncRNA) GAS5 contributes to the mechanism of cognitive function in undergoing lumbar spinal canal decompression remains unknown. Thus, the present study investigated the precise details of LncRNA GAS5 involvement in Postoperative cognitive dysfunction of patients undergoing lumbar spinal canal decompression. Patients undergoing lumbar spinal canal decompression with cognitive function and Normal healthy volunteers were obtained. C57BL/6 mice were maintained with a 2% concentration of sevoflurane in 100% oxygen at a flow rate of 2 L minute-1 for 4 hours. LncRNA GAS5 gene expression were up-regulated in patients undergoing lumbar spinal canal decompression. In mice model, LncRNA GAS5 gene expression also increased. LncRNA GAS5 promoted neuroinflammation in vitro model. LncRNA GAS5 raised cognitive impairment and increased neuroinflammation in mice model. LncRNA GAS5 suppressed miR-137 in vitro model. MiR-137 reduced neuroinflammation in vitro model. MiR-137 suppressed TCF4 protein expression in vitro model. Transcription factor TCF4 activates the expression of bHLH. Taking together, this experiment provide the first experimental and clinical evidence that LncRNA GAS5/miR-137 promoted anesthesia-induced cognitive function to increase inflammatory bodies in patients undergoing lumbar spinal canal decompression, suggesting it may be a biomarker of POCD and a potential therapeutic target for POCD.
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Affiliation(s)
- Chunli Zhang
- Department of Anesthesiology, the Second Affiliated Hospital of Hainan Medical College, Haikou, Hainan, China
| | - Dingzhong Chen
- Department of Chiropractic Surgery, The Second Affiliated Hospital of Hainan Medical College, Haikou, Hainan, China
- * Correspondence: Dingzhong Chen, Department of Chiropractic Surgery, The Second Affiliated Hospital of Hainan Medical College, No.48 Baishuitang Road, Longhua District, Haikou City, Hainan Province 570311, China (e-mail: )
| | - Yuntao Gu
- Department of Chiropractic Surgery, The Second Affiliated Hospital of Hainan Medical College, Haikou, Hainan, China
| | - Tao Wang
- Department of Anesthesiology, the Second Affiliated Hospital of Hainan Medical College, Haikou, Hainan, China
| | - Cong Wang
- Department of Anesthesiology, the Second Affiliated Hospital of Hainan Medical College, Haikou, Hainan, China
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13
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Chen Y, Liu Y, Jiang K, Wen Z, Cao X, Wu S. Linear ubiquitination of LKB1 activates AMPK pathway to inhibit NLRP3 inflammasome response and reduce chondrocyte pyroptosis in osteoarthritis. J Orthop Translat 2022; 39:1-11. [PMID: 36514784 PMCID: PMC9719095 DOI: 10.1016/j.jot.2022.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 10/11/2022] [Accepted: 11/07/2022] [Indexed: 12/03/2022] Open
Abstract
Background Osteoarthritis (OA) is the most common chronic disease. It is characterized by high levels of clinical heterogeneity and low inflammation. Therefore, elucidation of the mechanisms that regulate gene expression is critical for developing effective OA therapies. This study aimed to explore the role of LKB1/AMPK in the progression of OA. Methods Anterior cruciate ligament transection (ACLT) was performed on Sprague Dawley (SD) rats right knee to construct OA model, followed by AICAR [AMP-activated protein kinase (AMPK) activator] treatment. The level changes [AMPK, IL-10, IL-13, IL-1β, TNF-α, IL-6, ASC, Caspase-1, Ki67, and hibit Nod-like receptor protein 3 (NLRP3)] and the degree of tissue injury were assessed by western blot, Immunohistochemical (IHC), Enzyme-linked immunosorbent assay (ELISA), Hematoxylin-eosin staining (HE), Immunofluorescence (IF), Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) assay, and Safranin O and Fast Green staining (S-O). Human chondrocytes were induced by LPS to construct a cellular inflammatory model, and then transfected with oe-AMPK or oe-HOIL-1-interacting protein (HOIP). Cell viability/apoptotic and intracellular content of AMPK, HOIP, IL-1β, IL-10, IL-13, TNF-α, IL-6, ASC, NLRP3 and Caspase-1 were measured by western blot, ELISA, CCK-8, IF, flow cytometry and TUNEL assays. Results After AICAR treatment with OA rats, the expression of p-AMPK, IL-10, IL-13, Ki67 and Bcl-2 increased, the level of NLRP3 inflammasome, TNF-α, IL-6, Bax and Caspase-3 levels were decreased, and tissue damage and apoptosis were significantly alleviated. After transfected with oe-LKB1, chondrocyte activity and LKB1 linear ubiquitination were enhanced, and the level of HOIP, p-AMPK, IL-10 and IL-13 were increased. In contrast, NLRP3 inflammasome (ASC, NLRP3, Caspase-1, IL-1β, and cleaved Caspase-1), TNF-α, and IL-6 levels decreased, apoptosis rate and TUNEL positive rate were attenuated. Conclusion LKB1/AMPK pathway significantly ameliorated NLRP3 inflammasome response and chondrocyte injury. Activation of AMPK pathway by linear ubiquitination of LKB1 may be a potential target for OA treatment. The translational potential of this article This study highlights the importance of the LKB1/AMPK pathway in NLRP3 inflammatory body response and chondrocyte injury. Activation of LKB1 by modulating linear ubiquitination may be a potential target for OA treatment.
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Affiliation(s)
- Yang Chen
- Department of Orthopedics, Third Xiangya Hospital of Central South University, Changsha, 410013, China,Department of Orthopedics, Haikou People's Hospital/Haikou Affiliated Hospital of Central South University, Xiangya School of Medicine, Hai Kou, 570100, China
| | - Yiheng Liu
- Department of Orthopedics, Haikou People's Hospital/Haikou Affiliated Hospital of Central South University, Xiangya School of Medicine, Hai Kou, 570100, China
| | - Kai Jiang
- Department of Orthopedics, Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Zi Wen
- Department of Orthopedics, Third Xiangya Hospital of Central South University, Changsha, 410013, China
| | - Xu Cao
- Department of Orthopedics, Third Xiangya Hospital of Central South University, Changsha, 410013, China,Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, 310022, China,Corresponding author. Department of Orthopedics, Third Xiangya Hospital of Central South University, Changsha, 410013, China.
| | - Song Wu
- Department of Orthopedics, Third Xiangya Hospital of Central South University, Changsha, 410013, China,Corresponding author.
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14
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Huang C, Jiang Z, Du D, Zhang Z, Liu Y, Li Y. Hsa_circ_0016070/micro‐340‐5p Axis Accelerates Pulmonary Arterial Hypertension Progression by Upregulating TWIST1 Transcription Via TCF4/β‐Catenin Complex. J Am Heart Assoc 2022; 11:e024147. [PMID: 35861841 PMCID: PMC9707813 DOI: 10.1161/jaha.121.024147] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background
Hypoxia is considered a major leading cause of pulmonary hypertension (PH). In this study, the roles and molecular mechanism of circ_0016070 in PH were studied.
Methods and Results
The expression of circ_0016070 in serum samples, human pulmonary artery smooth muscle cells and hypoxia/monocrotaline‐treated rats was determined by real‐time quantitative polymerase chain reaction. Cell viability, migration, and apoptosis were analyzed by Cell Counting Kit‐8, wound healing, flow cytometry, and TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) assays, respectively. The molecular interactions were validated using RNA immunoprecipitation, chromatin immunoprecipitation, and dual luciferase reporter assays. The levels of phenotype switch‐related proteins were evaluated by Western blot and immunohistochemistry. The pathological characteristics were assessed using hematoxylin and eosin staining. circ_0016070 was highly expressed in the serum samples, hypoxia‐induced pulmonary artery smooth muscle cells and pulmonary arterial tissues of PH rats. Downregulation of circ_0016070 ameliorated the excessive proliferation, migration, vascular remodeling, and phenotypic transformation but enhanced cell apoptosis in the PH rat model. In addition, micro (miR)‐340‐5p was verified as a direct target of circ_0016070 and negatively regulated TCF4 (transcription factor 4) expression. TCF4 formed a transcriptional complex with β‐catenin to activate TWIST1 (Twist family bHLH transcription factor 1) expression. Functional rescue experiments showed that neither miR‐340‐5p inhibition nor TWIST1 or TCF4 upregulation significantly impeded the biological roles of circ_0010670 silencing in PH.
Conclusions
These results uncovered a novel mechanism by which circ_0016070 play as a competing endogenouse RNA of miR‐340‐5p to aggravate PH progression by promoting TCF4/β‐catenin/TWIST1 complex, which may provide potential therapeutic targets for PH.
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Affiliation(s)
- Chun‐Xia Huang
- The Second School of Clinical Medicine Southern Medical University Guangzhou Guangdong Province China
| | - Zhi‐Xin Jiang
- Department of Cardiology 305 Hospital of PLA Beijing China
| | - Da‐Yong Du
- Department of Cardiology 305 Hospital of PLA Beijing China
| | - Zhi‐Min Zhang
- Shanxi Medical University Linfen Peoples’ Hospital Linfen Shanxi Province China
| | - Yang Liu
- Department of Cardiology 305 Hospital of PLA Beijing China
| | - Yun‐Tian Li
- The Second School of Clinical Medicine Southern Medical University Guangzhou Guangdong Province China
- Department of Cardiology 305 Hospital of PLA Beijing China
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15
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Chen F, Zhang X, Chen Y, Chai Y, Jiang X, Li H. Construction of lncRNA-miRNA-mRNA network based on ceRNA mechanism reveals the function of lncRNA in the pathogenesis of gout. J Clin Lab Anal 2022; 36:e24451. [PMID: 35524416 PMCID: PMC9169187 DOI: 10.1002/jcla.24451] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/18/2022] [Accepted: 04/12/2022] [Indexed: 11/23/2022] Open
Abstract
Objective To identify differentially expressed lncRNA, miRNA, and mRNA during the pathogenesis of gout, explore the ceRNA network regulatory mechanism of gout, and seek potential therapeutic targets. Method First, gout‐related chips were retrieved by GEO database. Then, the analysis of differentially expressed lncRNAs and mRNAs was conducted by R language and other software. Besides, miRNA and its regulated mRNA were predicted based on public databases, the intersection of differentially expressed mRNA and predicated mRNA was taken, and the lncRNA‐miRNA‐mRNA regulatory relationships were obtained to construct the ceRNA regulatory network. Subsequently, hub genes were screened by the STRING database and Cytoscape software. Then the DAVID database was used to illustrate the gene functions and related pathways of hub genes and to mine key ceRNA networks. Results Three hundred and eighty‐eight lncRNAs and 758 mRNAs were identified with significant differential expression in gout patient, which regulates hub genes in the ceRNA network, such as JUN, FOS, PTGS2, NR4A2, and TNFAIP3. In the ceRNA network, lncRNA competes with mRNA for miRNA, thus affecting the IL‐17 signaling pathway, TNF signaling pathway, Oxytocin signaling pathway, and NF‐κB signaling pathway through regulating the cell's response to chemical stress. The research indicates that five miRNAs (miR‐429, miR‐137, miR‐139‐5p, miR‐217, miR‐23b‐3p) and five lncRNAs (SNHG1, FAM182A, SPAG5‐AS1, HNF1A‐AS1, UCA1) play an important role in the formation and development of gout. Conclusion The interaction in the ceRNA network can affect the formation and development of gout by regulating the body's inflammatory response as well as proliferation, differentiation, and apoptosis of chondrocytes and osteoclasts. The identification of potential therapeutic targets and signaling pathways through ceRNA network can provide a reference for further research on the pathogenesis of gout.
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Affiliation(s)
- Feng Chen
- Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, China
| | - Xiaoyun Zhang
- Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, China
| | - Yueping Chen
- Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, China
| | - Yuan Chai
- Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, China
| | - Xiao Jiang
- The Second Hospital of Dalian Medical University, DaLian, China
| | - Huanan Li
- Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, China
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16
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Yu B, Zhu Z, Shen B, Lu J, Guo K, Zhao W, Wu D. MicroRNA-137 inhibits the inflammatory response and extracellular matrix degradation in lipopolysaccharide-stimulated human nucleus pulposus cells by targeting activin a receptor type I. Bioengineered 2022; 13:6396-6408. [PMID: 35236255 PMCID: PMC8973860 DOI: 10.1080/21655979.2022.2042987] [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] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
This study aimed to investigate the role played by microRNA (miR)-137 in intervertebral disc degeneration via targeting activin A receptor type I (ACVR1) and the underlying mechanism. Human nucleus pulposus cells were exposed to 10 ng/mL lipopolysaccharide (LPS) to establish an in vitro intervertebral disc degeneration model. ACVR1, extracellular matrix degradation-associated genes (aggrecan and collagen type II) and miR-137 levels were assessed using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and Western blotting assays. The MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide) assay and flow cytometry were used to evaluate nucleus pulposus cell viability and apoptosis. Additionally, the association between miR-137 and ACVR1 was predicted and verified using bioinformatic software and dual-luciferase reporter assays. Furthermore, the secretion of inflammatory factors was analyzed via enzyme linked immunosorbent assay (ELISA). Our results confirmed that ACVR1 was upregulated in lipopolysaccharide-treated nucleus pulposus cells. Lipopolysaccharide suppressed cell viability, promoted apoptosis, enhanced the secretion of inflammatory factors, and reduced aggrecan and collagen type II expression. However, these results were reversed upon ACVR1 silencing. Our data revealed that ACVR1 directly targets miR-137 and is negatively regulated by miR-137 in nucleus pulposus cells. Additionally, the miR-137 mimic promoted cell growth, reduced cell apoptosis, reduced the secretion of inflammatory cytokines, and accelerated extracellular matrix accumulation in lipopolysaccharide-exposed nucleus pulposus cells. However, ACVR1 plasmid abolished the functions of the miR-137 mimic in lipopolysaccharide-exposed nucleus pulposus cells. Together, these findings indicate that miR-137 suppresses the inflammatory response and extracellular matrix degradation in lipopolysaccharide-treated nucleus pulposus cells by targeting ACVR1.
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Affiliation(s)
- Bin Yu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ziqi Zhu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Beiduo Shen
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jiawei Lu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Kai Guo
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Weidong Zhao
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Desheng Wu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
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17
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A review of non-coding RNA related to NF-κB signaling pathway in the pathogenesis of osteoarthritis. Int Immunopharmacol 2022; 106:108607. [PMID: 35180625 DOI: 10.1016/j.intimp.2022.108607] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 12/21/2022]
Abstract
Osteoarthritis (OA), often called as "wear and tear" arthritis, is the most common form of degenerative joint arthritis and is a leading cause of disability. The nuclear factor-kappaB (NF-κB) transcription factor has long been recognized as a disease-contributing factor for OA. More and more evidences show that targeting NF-κB signaling could offer novel potential therapeutic options for OA damage and reduce the risk of potential side-effects. In recent years, it has been shown that non-coding RNAs(ncRNAs) can trigger the expression of an array of genes and widely activate NF-κB signaling pathway, which induces destruction of the articular joint, leading to OA onset and progression. In this review, we discuss the involvement of NF-κB in OA pathogenesis and how ncRNAs attend and affect OA incidence and evolution, offering novel potential therapeutic options for OA treatment.
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18
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Kong H, Sun ML, Zhang XA, Wang XQ. Crosstalk Among circRNA/lncRNA, miRNA, and mRNA in Osteoarthritis. Front Cell Dev Biol 2022; 9:774370. [PMID: 34977024 PMCID: PMC8714905 DOI: 10.3389/fcell.2021.774370] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a joint disease that is pervasive in life, and the incidence and mortality of OA are increasing, causing many adverse effects on people's life. Therefore, it is very vital to identify new biomarkers and therapeutic targets in the clinical diagnosis and treatment of OA. ncRNA is a nonprotein-coding RNA that does not translate into proteins but participates in protein translation. At the RNA level, it can perform biological functions. Many studies have found that miRNA, lncRNA, and circRNA are closely related to the course of OA and play important regulatory roles in transcription, post-transcription, and post-translation, which can be used as biological targets for the prevention, diagnosis, and treatment of OA. In this review, we summarized and described the various roles of different types of miRNA, lncRNA, and circRNA in OA, the roles of different lncRNA/circRNA-miRNA-mRNA axis in OA, and the possible prospects of these ncRNAs in clinical application.
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Affiliation(s)
- Hui Kong
- College of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Ming-Li Sun
- College of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Xin-An Zhang
- College of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Xue-Qiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China.,Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
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19
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Chitosan oligosaccharides packaged into rat adipose mesenchymal stem cells-derived extracellular vesicles facilitating cartilage injury repair and alleviating osteoarthritis. J Nanobiotechnology 2021; 19:343. [PMID: 34702302 PMCID: PMC8549296 DOI: 10.1186/s12951-021-01086-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 10/13/2021] [Indexed: 02/06/2023] Open
Abstract
Objectives This study aimed to investigate the roles of adipose mesenchymal stem cell (AMSC)-derived extracellular vesicles (EVs) binding with chitosan oligosaccharides (COS) in cartilage injury, as well as the related mechanisms. Results IL-1β treatment significantly inhibited the viability and migration of chondrocytes and enhanced cell apoptosis (P < 0.05), while chitosan oligosaccharides and extracellular vesicles-chitosan oligosaccharide conjugates (EVs-COS/EVs-COS conjugates) reversed the changes induced by IL-1β (P < 0.05), and the effects of extracellular vesicles-chitosan oligosaccharide conjugates were better than those of chitosan oligosaccharides (P < 0.05). After cartilage damage, IL-1β, OPN, and p53 were significantly upregulated, COL1A1, COL2A1, OCN, RUNX2, p-Akt/Akt, PI3K, c-Myc, and Bcl2 were markedly downregulated, and extracellular vesicles-chitosan oligosaccharide conjugates reversed the expression induced by cartilage injury. Through sequencing, 760 differentially expressed genes (DEGs) clustered into four expression patterns were associated with negative regulation of the canonical Wnt, PI3K-Akt, AMPK, and MAPK signaling pathways. Conclusion Extracellular vesicles-chitosan oligosaccharide conjugates may serve as a new cell-free biomaterial to facilitate cartilage injury repair and improve osteoarthritis. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01086-x.
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20
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Wang Z, Huang C, Zhao C, Zhang H, Zhen Z, Xu D. Knockdown of LINC01385 inhibits osteoarthritis progression by modulating the microRNA-140-3p/TLR4 axis. Exp Ther Med 2021; 22:1244. [PMID: 34539840 DOI: 10.3892/etm.2021.10679] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 03/22/2021] [Indexed: 02/06/2023] Open
Abstract
Long non-coding (lnc) RNAs have been associated with osteoarthritis (OA) progression. The aim of the present study was to investigate the regulatory mechanism of lncRNA LINC01385 in OA in vitro. The mRNA expression level of LINC01385, microRNA(miR)-140-3p, and Toll-like receptor 4 (TLR4) was detected using reverse transcription-quantitative PCR, while ELISA was used to determine the concentration of different inflammatory factors [tumor necrosis factor-α (TNF-α), IL-6, and prostaglandin E2 (PGE2)]. The viability of human articular chondrocytes (HC-a) was measured using a MTT assay and western blot analysis was performed to quantify the protein expression level of TLR4. The associations between miR-140-3p and LINC01385/TLR4 were confirmed using a dual-luciferase reporter assay. LINC01385 mRNA expression level was increased in OA tissues and IL-1β-induced HC-a. LINC01385 knockdown and miR-140-3p mimics reduced the concentration of inflammatory factors in IL-1β-induced HC-a and promoted cell survival. In addition, it was confirmed that LINC01385 targeted miR-140-3p, while TLR4 was a target gene of miR-140-3p. Negative correlations between LINC01385 and miR-140-3p, and between miR-140-3p and TLR4 were observed in OA tissues. Low mRNA expression level of miR-140-3p and high protein expression level of TLR4 reversed the inhibitory effect of LINC01385 knockdown on the inflammatory responses of IL-1β-induced HC-a and exhibited a stimulating effect on cell viability. LINC01385 knockdown reduced the progression of OA by modulating the miR-140-3p/TLR4 axis in vitro; thus, LINC01385 may be a therapeutic target for OA.
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Affiliation(s)
- Zidong Wang
- Department of Orthopedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Chuanwang Huang
- Department of Orthopedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Cunju Zhao
- Department of Orthopedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Huiling Zhang
- Department of Endocrinology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Zhen Zhen
- Department of Ultrasonic, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Duliang Xu
- Department of Orthopedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
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21
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Yi D, Yu H, Lu K, Ruan C, Ding C, Tong L, Zhao X, Chen D. AMPK Signaling in Energy Control, Cartilage Biology, and Osteoarthritis. Front Cell Dev Biol 2021; 9:696602. [PMID: 34239878 PMCID: PMC8258395 DOI: 10.3389/fcell.2021.696602] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 05/24/2021] [Indexed: 12/17/2022] Open
Abstract
The adenosine monophosphate (AMP)-activated protein kinase (AMPK) was initially identified as an enzyme acting as an "energy sensor" in maintaining energy homeostasis via serine/threonine phosphorylation when low cellular adenosine triphosphate (ATP) level was sensed. AMPK participates in catabolic and anabolic processes at the molecular and cellular levels and is involved in appetite-regulating circuit in the hypothalamus. AMPK signaling also modulates energy metabolism in organs such as adipose tissue, brain, muscle, and heart, which are highly dependent on energy consumption via adjusting the AMP/ADP:ATP ratio. In clinics, biguanides and thiazolidinediones are prescribed to patients with metabolic disorders through activating AMPK signaling and inhibiting complex I in the mitochondria, leading to a reduction in mitochondrial respiration and elevated ATP production. The role of AMPK in mediating skeletal development and related diseases remains obscure. In this review, in addition to discuss the emerging advances of AMPK studies in energy control, we will also illustrate current discoveries of AMPK in chondrocyte homeostasis, osteoarthritis (OA) development, and the signaling interaction of AMPK with other pathways, such as mTOR (mechanistic target of rapamycin), Wnt, and NF-κB (nuclear factor κB) under OA condition.
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Affiliation(s)
- Dan Yi
- Faculty of Pharmaceutical Sciences, Shenzhen, China
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Huan Yu
- Faculty of Pharmaceutical Sciences, Shenzhen, China
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ke Lu
- Faculty of Pharmaceutical Sciences, Shenzhen, China
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Changshun Ruan
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Changhai Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Liping Tong
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xiaoli Zhao
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Di Chen
- Faculty of Pharmaceutical Sciences, Shenzhen, China
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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22
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Xi P, Zhang CL, Wu SY, Liu L, Li WJ, Li YM. CircRNA circ-IQGAP1 Knockdown Alleviates Interleukin-1β-Induced Osteoarthritis Progression via Targeting miR-671-5p/TCF4. Orthop Surg 2021; 13:1036-1046. [PMID: 33675175 PMCID: PMC8126892 DOI: 10.1111/os.12923] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 12/02/2020] [Accepted: 12/20/2020] [Indexed: 12/16/2022] Open
Abstract
Objective To explore the function of circular RNA IQ motif‐containing GTPase‐activating protein 1 (circ‐IQGAP1) in interleukin (IL)‐1β‐induced osteoarthritis (OA) model and to explore whether circ‐IQGAP1 can modulate microRNA‐671‐5p (miR‐671‐5p) and transcription factor 4 (TCF4) to regulate chondrocyte apoptosis, inflammatory injury, and extracellular matrix degradation. Methods The cartilage tissues were collected from 32 OA patients or normal subjects. Human chondrocyte CHON‐001 cells were challenged via different doses of IL‐1β for 24 hours. CHON‐001 cells were transfected with circ‐IQGAP1 overexpression vector, TCF4 overexpression vector, small interfering RNA (siRNA) for circ‐IQGAP1, miR‐671‐5p mimic, miR‐671‐5p inhibitor or corresponding negative controls. Circ‐IQGAP1, miR‐671‐5p and TCF4 abundances in cartilage tissues or CHON‐001 cells were examined via quantitative reverse transcription polymerase chain reaction (qRT‐PCR) or western blot. Cell viability was investigated by 3‐(4, 5‐dimethylthiazol‐2‐yl)‐2, 5‐diphenyltetrazolium bromide (MTT). Cell apoptosis was measured by flow cytometry. The inflammatory injury was analyzed by the secretion levels of inflammatory cytokines (IL‐6, IL‐8 and tumor necrosis factor‐α [TNF‐α]) by enzyme‐linked immunosorbent assay (ELISA). The extracellular matrix degradation was evaluated by expression of aggrecan and matrix metalloproteinase 13 (MMP13) via western blot. The target relationship of miR‐671‐5p and circ‐IQGAP1 or TCF4 was analyzed via dual‐luciferase reporter and RNA immunoprecipitation (RIP) analyses. Results Circ‐IQGAP1 abundance was enhanced in the cartilage tissues from OA patients compared with normal subjects (n = 32), and its expression was increased in CHON‐001 cells after treatment of IL‐1β in a dose‐dependent pattern. MiR‐671‐5p expression was decreased in the cartilage tissues from OA patients (n = 32) and IL‐1β‐challenged CHON‐001 cells. MiR‐671‐5p expression was negatively associated with circ‐IQGAP1 level in OA patients. Circ‐IQGAP1 silence mitigated IL‐1β‐caused chondrocyte viability reduction, apoptosis promotion, secretion of inflammatory cytokine (IL‐6, IL‐8 and TNF‐α), and extracellular matrix degradation (reduction of aggrecan and increase of MMP13). MiR‐671‐5p was targeted and inhibited via circ‐IQGAP1. MiR‐671‐5p knockdown attenuated the influence of circ‐IQGAP1 interference on IL‐1β‐caused chondrocyte apoptosis, inflammatory injury, and extracellular matrix degradation. TCF4 was targeted via miR‐671‐5p, and TCF4 expression was increased in the cartilage tissues from OA patients (n = 32) and IL‐1β‐challenged CHON‐001 cells. TCF4 abundance in OA patients was negatively correlated with miR‐671‐5p expression. MiR‐671‐5p overexpression alleviated IL‐1β‐mediated chondrocyte apoptosis, inflammatory injury, and extracellular matrix degradation via decreasing TCF4 expression. Circ‐IQGAP1 silence reduced TCF4 expression via regulating miR‐671‐5p in IL‐1β‐challenged CHON‐001 cells. Conclusion Circ‐IQGAP1 knockdown attenuated IL‐1β‐caused chondrocyte apoptosis, inflammatory injury, and extracellular matrix degradation. Circ‐IQGAP1 could regulate miR‐671‐5p/TCF4 axis to modulate IL‐1β‐caused chondrocyte damage. Circ‐IQGAP1 might act as a new target for the treatment of OA.
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Affiliation(s)
- Peng Xi
- Pain Department, the First Affiliated Hospital ofXinjiang Medical University, Urumqi, China
| | - Cai-Lin Zhang
- Pain Department, the First Affiliated Hospital ofXinjiang Medical University, Urumqi, China
| | - Shi-Yan Wu
- Pain Department, the First Affiliated Hospital ofXinjiang Medical University, Urumqi, China
| | - Lei Liu
- Pain Department, the First Affiliated Hospital ofXinjiang Medical University, Urumqi, China
| | - Wen-Ju Li
- Pain Department, the First Affiliated Hospital ofXinjiang Medical University, Urumqi, China
| | - Yi-Mei Li
- Pain Department, the First Affiliated Hospital ofXinjiang Medical University, Urumqi, China
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23
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Aili D, Wu T, Gu Y, Chen Z, Wang W. Knockdown of long non-coding RNA KCNQ1OT1 suppresses the progression of osteoarthritis by mediating the miR-211-5p/TCF4 axis in vitro. Exp Ther Med 2021; 21:455. [PMID: 33747189 DOI: 10.3892/etm.2021.9886] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/17/2020] [Indexed: 01/02/2023] Open
Abstract
Numerous studies have reported the critical roles of long non-coding RNAs (lncRNAs) in the regulation of osteoarthritis (OA) development. The present study aimed to assess the function and regulatory mechanism of a lncRNA, KCNQ1 opposite strand/antisense transcript 1 (KCNQ1OT1), in OA in vitro. C28/I2 cells were treated with lipopolysaccharide (LPS) to generate an in vitro OA model. The relative expression levels of KCNQ1OT1, microRNA (miR)-211-5p and transcription factor 4 (TCF4) were determined via reverse transcription-quantitative polymerase chain reaction. The associations between KCNQ1OT1, miR-211-5p and TCF4 were confirmed using a dual-luciferase reporter assay. Furthermore, cell viability was assessed using the MTT assay. Inflammatory cytokine levels were measured using ELISA. The protein expression levels of matrix metalloproteinase-3/13, collagen II/X and TCF4 were detected by western blotting. KCNQ1OT1 and TCF4 were highly expressed in the cartilage tissues of patients with OA and C28/I2 cells treated with LPS (OA cells), whereas miR-211-5p was downregulated concomitantly in OA tissues and cells. Knockdown of KCNQ1OT1 stimulated cell viability, and suppressed the inflammation and degradation of the extracellular matrix (ECM) in OA cells. In addition, overexpression of miR-211-5p stimulated cell viability, and inhibited inflammation and degradation of the ECM in OA cells. Notably, miR-211-5p was revealed to be the target of, and was negatively regulated by, KCNQ1OT1. TCF4 was targeted and negatively modulated by miR-211-5p. Transfection of cells with the miR-211-5p inhibitor or pcDNA-TCF4 reversed the suppressive effects of short hairpin RNA (sh)-KCNQ1OT1 on inflammation and ECM degradation, as well as the promotive effect of sh-KCNQ1OT1 on viability in OA in vitro. Therefore, KCNQ1OT1 may regulate the miR-211-5p/TCF4 axis to ameliorate OA in vitro.
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Affiliation(s)
- Dilihumaer Aili
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Tong Wu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Yuan Gu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Ziyuan Chen
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Wanchun Wang
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
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24
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Sun W, Zhang Y, Wang G. MicroRNA-137-mediated inhibition of lysine-specific demethylase-1 prevents against rheumatoid arthritis in an association with the REST/mTOR axis. Mol Pain 2021; 17:17448069211041847. [PMID: 34433333 PMCID: PMC8404669 DOI: 10.1177/17448069211041847] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 06/08/2021] [Accepted: 08/07/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND It has been increasingly reported that microRNAs (miRNAs) are related to rheumatoid arthritis (RA) pathogenesis. This present research was conducted to analyze the functions of miR-137 and the underlying molecular mechanism in RA progression. METHODS Differentially expressed miRNAs in RA patients were analyzed using microarray-based analyses. Next, experiments involving miR-137 overexpression were performed to analyze the role of miR-137 in human fibroblast-like synoviocytes-RA (HFLS-RA) using cell counting kit-8 (CCK-8) assay, EdU staining, Transwell assay and flow cytometry, respectively. The function of miR-137 in inflammation was determined using ELISA. The binding relationship between miR-137 and LSD1 was confirmed by dual-luciferase reporter gene assay and ChIP test. Besides, a rat model with RA was established for in vivo experiments. RESULTS miR-137 was downregulated in RA tissues and cells, which was negatively correlated with inflammatory factors. Upregulated miR-137 suppressed growth, migration and invasion of HFLS-RA, but promoted apoptosis. Lysine-specific demethylase-1 (LSD1) was a target of miR-137 and could be negatively regulated by miR-137. Moreover, LSD1 could activate REST through demethylation, while the REST/mTOR pathway induced levels of pro-inflammatory factors in RA. We observed the similar results in our in vivo study. CONCLUSION This study suggested that miR-137 reduced LSD1 expression to inhibit the activation of REST/mTOR pathway, thus preventing against inflammation and ameliorating RA development. Our research may offer new insights into treatment of RA.
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Affiliation(s)
- Wei Sun
- Department of Sports Medicine, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Shandong, P.R. China
| | - Yijun Zhang
- Department of Sports Medicine, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Shandong, P.R. China
| | - Guanghui Wang
- Department of Orthopaedics Oncology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Shandong, P.R. China
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