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Cazzanelli P, Lamoca M, Hausmann ON, Mesfin A, Puvanesarajah V, Hitzl W, Haglund L, Wuertz-Kozak K. Exploring the Impact of TLR-2 Signaling on miRNA Dysregulation in Intervertebral Disc Degeneration. Adv Biol (Weinh) 2024; 8:e2300581. [PMID: 38419396 DOI: 10.1002/adbi.202300581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/24/2024] [Indexed: 03/02/2024]
Abstract
Toll-like receptors (TLRs) are key mediators of inflammation in intervertebral disc (IVD) degeneration. TLR-2 activation contributes to the degenerative process by increasing the expression of extracellular matrix-degrading enzymes, pro-inflammatory cytokines, and neurotrophins. As potent post-transcriptional regulators, microRNAs can modulate intracellular mechanisms, and their dysregulation is known to contribute to numerous pathologies. This study aims to investigate the impact of TLR-2 signaling on miRNA dysregulation in the context of IVD degeneration. Small-RNA sequencing of degenerated IVD cells shows the dysregulation of ten miRNAs following TLR-2 activation by PAM2CSK4. The miR-155-5p is most significantly upregulated in degenerated and non-degenerated annulus fibrosus and nucleus pulposus cells. Sequence-based target and pathway prediction shows the involvement of miR-155-5p in inflammation- and cell fate-related pathways and TLR-2-induced miR-155-5p expression leads to the downregulation of its target c-FOS. Furthermore, changes specific to the activation of TLR-2 through fragmented fibronectin are seen in miR-484 and miR-487. Lastly, miR-100-3p, miR-320b, and miR-181a-3p expression exhibit degeneration-dependent changes. These results show that TLR-2 signaling leads to the dysregulation of miRNAs in IVD cells as well as their possible downstream effects on inflammation and degeneration. The identified miRNAs provide important opportunities as potential therapeutic targets for IVD degeneration and low back pain.
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Affiliation(s)
- Petra Cazzanelli
- Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY, 14623, USA
| | - Mikkael Lamoca
- Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY, 14623, USA
| | - Oliver Nic Hausmann
- Neuro- and Spine Center, Hirslanden Klinik St. Anna, St. Anna-Strasse 32, Lucerne, 6006, Switzerland
- Neurosurgical Department, University of Berne, Freiburgstrasse 16, Bern, 3010, Switzerland
| | - Addisu Mesfin
- Medstar Orthopaedic Institute, Georgetown University School of Medicine Washington, 3800 Reservoir Rd NW, Washington, DC, 20007, USA
| | - Varun Puvanesarajah
- Department of Orthopedics and Rehabilitation, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA
| | - Wolfgang Hitzl
- Research and Innovation Management (RIM), Paracelsus Medical University, Strubergasse 16, Salzburg, 5020, Austria
- Department of Ophthalmology and Optometry, Paracelsus Medical University, Strubergasse 21, Salzburg, 5020, Austria
- Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University, Strubergasse 21, Salzburg, 5020, Austria
| | - Lisbet Haglund
- Orthopaedic Research Laboratory, and Shriners Hospital for Children, 1003 Decarie Boulevard, Montreal, H4A 0A9, Canada
- Department of Surgery, McGill University, 1001 Decarie Boulevard, Montreal, H4A 3J1, Canada
| | - Karin Wuertz-Kozak
- Department of Biomedical Engineering, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, NY, 14623, USA
- Schön Clinic Munich Harlaching, Spine Center, Academic Teaching Hospital and Spine Research Institute of the Paracelsus Medical University Salzburg (Austria), Grünwalder Str. 72, 81547, Munich, Germany
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Zheng J, Wang S, Zhang T, Li H, Zhu M, Wei X, Ge Y, Yang X, Zhang S, Xu H, Duan Y, Liu L, Chen Y. Nogo-B inhibition restricts ulcerative colitis via inhibiting p68/miR-155 signaling pathway. Int Immunopharmacol 2023; 120:110378. [PMID: 37244119 DOI: 10.1016/j.intimp.2023.110378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/10/2023] [Accepted: 05/19/2023] [Indexed: 05/29/2023]
Abstract
BACKGROUND & AIMS Ulcerative colitis (UC) is a main type of inflammatory bowel diseases which spreads globally during the westernization of lifestyle over the past few decades. However, the cause of UC is still not fully understood. We aimed to disclose the role of Nogo-B in the development of UC. METHODS Nogo-deficiency (Nogo-/-) and wild-type male mice were treated with dextran sodium sulfate (DSS) to conduct a UC model, followed by determination of colon and serum inflammatory cytokines level. RAW264.7, THP1 and NCM460 cells were used to determine macrophage inflammation as well as proliferation and migration of NCM460 cells under Nogo-B or miR-155 intervention. RESULTS Nogo deficiency significantly reduced DSS-induced weight loss, colon length and weight reduction, and inflammatory cells accumulation in the intestinal villus, while increased the expression of tight junctions (TJs) proteins (Zonula occludens-1, Occludin) and adherent junctions (AJs) proteins (E-cadherin, α-catenin), implying that Nogo deficiency attenuated DSS-induced UC. Mechanistically, Nogo-B deficiency reduced TNFα, IL-1β and IL-6 levels in the colon, serum, RAW264.7 cells and THP1-derived macrophages. Furthermore, we identified that Nogo-B inhibition can reduce the maturation of miR-155, which is essential for Nogo-B-affected inflammatory cytokines expression. Interestingly, we determined that Nogo-B and p68 can interact with each other to promote the expression and activation of Nogo-B and p68, thus facilitating miR-155 maturation to induce macrophage inflammation. Blocking p68 inhibited Nogo-B, miR-155, TNFα, IL-1β and IL-6 expression. Moreover, the culture medium collected from Nogo-B overexpressed macrophages can inhibit enterocytes NCM460 cells proliferation and migration. CONCLUSION We disclose that Nogo deficiency reduced DSS-induced UC via inhibiting p68-miR-155-activated inflammation. Our results indicate that Nogo-B inhibition serves as a new potential therapeutic candidate for the prevention and treatment of UC.
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Affiliation(s)
- Juan Zheng
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Shengnan Wang
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Tingting Zhang
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Huaxin Li
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Mengmeng Zhu
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Xiaoning Wei
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Yu Ge
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Xiaoxiao Yang
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Shuang Zhang
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Hongmei Xu
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Yajun Duan
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Lipei Liu
- College of Life Sciences, Key Laboratory of Bioactive Materials of Ministry of Education, Nankai University, Tianjin, China
| | - Yuanli Chen
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.
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Chen Z, Ding W, Duan P, Lv X, Feng Y, Yin Z, Luo Z, Li Z, Zhang H, Zhou T, Tan H. HWJMSC-derived extracellular vesicles ameliorate IL-1β-induced chondrocyte injury through regulation of the BMP2/RUNX2 axis via up-regulation TFRC. Cell Signal 2023; 105:110604. [PMID: 36669606 DOI: 10.1016/j.cellsig.2023.110604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/29/2022] [Accepted: 01/15/2023] [Indexed: 01/19/2023]
Abstract
Articular osteochondral injury is a common and frequently occurring disease in orthopedics that is caused by aging, disease, and trauma. The cytokine interleukin-1β (IL-1β) is a crucial mediator of the inflammatory response, which exacerbates damage during chronic disease and acute tissue injury. Human Wharton's jelly mesenchymal stem cell (HWJMSC) extracellular vesicles (HWJMSC-EVs) have been shown to promote cartilage regeneration. The study aimed to investigate the influence and mechanisms of HWJMSC-EVs on the viability, apoptosis, and cell cycle of IL-1β-induced chondrocytes. HWJMSC-EVs were isolated by Ribo™ Exosome Isolation Reagent kit. Nanoparticle tracking analysis was used to determine the size and concentration of HWJMSC-EVs. We characterized HWJMSC-EVs by western blot and transmission electron microscope. The differentiation, viability, and protein level of chondrocytes were measured by Alcian blue staining, Cell Counting Kit-8, and western blot, respectively. Flow cytometer was used to determine apoptosis and cell cycle of chondrocytes. The results showed that HWJMSCs relieved IL-1β-induced chondrocyte injury by inhibiting apoptosis and elevating viability and cell cycle of chondrocyte, which was reversed with exosome inhibitor (GW4869). HWJMSC-EVs were successfully extracted and proven to be uptake by chondrocytes. HWJMSC-EVs ameliorate IL-1β-induced chondrocyte injury by inhibiting cell apoptosis and elevating viability and cycle of cell, but these effects were effectively reversed by knockdown of transferrin receptor (TFRC). Notably, using bone morphogenetic protein 2 (BMP2) pathway agonist and inhibitor suggested that HWJMSC-EVs ameliorate IL-1β-induced chondrocyte injury through activating the BMP2 pathway via up-regulation TFRC. Furthermore, over-expression of runt-related transcription factor 2 (RUNX2) reversed the effects of BMP2 pathway inhibitor promotion of IL-1β-induced chondrocyte injury. These results suggested that HWJMSC-EVs ameliorate IL-1β-induced chondrocyte injury by regulating the BMP2/RUNX2 axis via up-regulation TFRC. HWJMSC-EVs may play a new insight for early medical interventions in patients with articular osteochondral injury.
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Affiliation(s)
- Zhian Chen
- Graduate School, Kunming Medical University, Kunming City, Yunnan Province, China
| | - Wei Ding
- College of Medicine Technology, Yunnan Medical Health College, Kunming City, Yunnan Province, China
| | - Peiya Duan
- Department of Neurosurgery, The First People's Hospital of Yunnan Province, Kunming City, Yunnan Province, China
| | - Xiaoyu Lv
- Graduate School, Kunming Medical University, Kunming City, Yunnan Province, China
| | - Yujiao Feng
- Graduate School, Kunming Medical University, Kunming City, Yunnan Province, China
| | - Zhengbo Yin
- Graduate School, Kunming Medical University, Kunming City, Yunnan Province, China
| | - Zhihong Luo
- Department of Orthopaedics, People's Liberation Army Joint Logistic Support Force 920th Hospital, Kunming City, Yunnan Province, China
| | - Zhigui Li
- Department of Orthopaedics, People's Liberation Army Joint Logistic Support Force 920th Hospital, Kunming City, Yunnan Province, China
| | - Hua Zhang
- Department of Orthopaedics, People's Liberation Army Joint Logistic Support Force 920th Hospital, Kunming City, Yunnan Province, China
| | - Tianhua Zhou
- Department of Orthopaedics, People's Liberation Army Joint Logistic Support Force 920th Hospital, Kunming City, Yunnan Province, China.
| | - Hongbo Tan
- Department of Orthopaedics, People's Liberation Army Joint Logistic Support Force 920th Hospital, Kunming City, Yunnan Province, China.
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李 敬, 杨 思, 韩 振, 江 天, 朱 耀, 周 子, 周 静. [Akt2 inhibitor promotes M2 macrophage polarization in rats with periapical inflammation by reducing miR-155-5p expression]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2023; 43:568-576. [PMID: 37202192 PMCID: PMC10202785 DOI: 10.12122/j.issn.1673-4254.2023.04.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Indexed: 05/20/2023]
Abstract
OBJECTIVE To investigate the effect of Akt2 inhibitor on macrophage polarization in the periapical tissue in a rat model of periapical inflammation. METHODS Rat models of periapical inflammation were established in 28 normal SD rats by opening the pulp cavity of the mandibular first molars, followed by injection of normal saline and Akt2 inhibitor into the left and right medullary cavities, respectively. Four rats without any treatment served as the healthy control group. At 7, 14, 21 and 28 days after modeling, 7 rat models and 1 control rat were randomly selected for observation of inflammatory infiltration in the periapical tissues by X-ray and HE staining. Immunohistochemistry was used to detect the expression and localization of Akt2, macrophages and the inflammatory mediators. RT-PCR was performed to detect the mRNA expressions of Akt2, CD86, CD163, inflammatory mediators, miR-155-5p and C/EBPβ to analyze the changes in macrophage polarization. RESULTS X-ray and HE staining showed that periapical inflammation was the most obvious at 21 days after modeling in the rats. Immunohistochemistry and RT-PCR showed that compared with those in the control rats, the expressions of Akt2, CD86, CD163, miR-155-5p, C/EBPβ, and IL-10 increased significantly in the rat models at 21 days (P < 0.05). Compared with saline treatment, treatment with the Akt2 inhibitor significantly decreased the expression levels of Akt2, CD86, miR-155-5p and IL-6 and the ratio of CD86+M1/CD163+M2 macrophages (P < 0.05) and increased the expression levels of CD163, C/EBPβ and IL-10 in the rat models (P < 0.05). CONCLUSION Inhibition of Akt2 can delay the progression of periapical inflammation in rats and promote M2 macrophage polarization in the periapical inflammatory microenvironment possibly by reducing miR-155-5p expression and activating the expression of C/EBPβ in the Akt signaling pathway.
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Affiliation(s)
- 敬怡 李
- />皖南医学院口腔医学院//皖南医学院口腔疾病研究中心,安徽 芜湖 241000School of Stomatology/Oral Disease Research Center, Wannan Medical College, Wuhu 241000, China
| | - 思圆 杨
- />皖南医学院口腔医学院//皖南医学院口腔疾病研究中心,安徽 芜湖 241000School of Stomatology/Oral Disease Research Center, Wannan Medical College, Wuhu 241000, China
| | - 振 韩
- />皖南医学院口腔医学院//皖南医学院口腔疾病研究中心,安徽 芜湖 241000School of Stomatology/Oral Disease Research Center, Wannan Medical College, Wuhu 241000, China
| | - 天乐 江
- />皖南医学院口腔医学院//皖南医学院口腔疾病研究中心,安徽 芜湖 241000School of Stomatology/Oral Disease Research Center, Wannan Medical College, Wuhu 241000, China
| | - 耀 朱
- />皖南医学院口腔医学院//皖南医学院口腔疾病研究中心,安徽 芜湖 241000School of Stomatology/Oral Disease Research Center, Wannan Medical College, Wuhu 241000, China
| | - 子航 周
- />皖南医学院口腔医学院//皖南医学院口腔疾病研究中心,安徽 芜湖 241000School of Stomatology/Oral Disease Research Center, Wannan Medical College, Wuhu 241000, China
| | - 静萍 周
- />皖南医学院口腔医学院//皖南医学院口腔疾病研究中心,安徽 芜湖 241000School of Stomatology/Oral Disease Research Center, Wannan Medical College, Wuhu 241000, China
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Osteoarthritis and microRNAs: Do They Provide Novel Insights into the Pathophysiology of This Degenerative Disorder? LIFE (BASEL, SWITZERLAND) 2022; 12:life12111914. [PMID: 36431049 PMCID: PMC9692287 DOI: 10.3390/life12111914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 11/19/2022]
Abstract
Osteoarthritis (OA) is one of the most prevalent degenerative joint diseases in older adults and a leading cause of disability. Recent research studies have evidenced the importance of mi-croRNAs (miRs) in the pathogenesis of OA. In the present review, we focused on current literature findings on dysregulated miRs involved in the pathophysiology of OA. From the 35 case-control studies including OA patients compared to healthy controls, a total of 54 human miRs were identified to be dysregulated in OA. In total, 41 miRs were involved in the pathophysiological processes of OA, including apoptosis, inflammation, and proliferation, having either a protective or a progressive role in OA. The discovery of altered miR levels in OA patients compared to healthy controls determines a better understanding of the molecular mechanisms involved in the pathophysiology of OA and could open novel horizons in the field of orthopedics.
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Kan Z, Yan W, Wang N, Fang Y, Gao H, Song Y. Identification of circRNA–miRNA–mRNA Regulatory Network and Crucial Signaling Pathway Axis Involved in Tetralogy of Fallot. Front Genet 2022; 13:917454. [PMID: 35873466 PMCID: PMC9300927 DOI: 10.3389/fgene.2022.917454] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/20/2022] [Indexed: 11/26/2022] Open
Abstract
Tetralogy of Fallot (TOF) is one of the most common cyanotic congenital heart diseases (CHD) worldwide; however, its pathogenesis remains unclear. Recent studies have shown that circular RNAs (circRNAs) act as “sponges” for microRNAs (miRNAs) to compete for endogenous RNA (ceRNA) and play important roles in regulating gene transcription and biological processes. However, the mechanism of ceRNA in TOF remains unclear. To explore the crucial regulatory connections and pathways of TOF, we obtained the human TOF gene, miRNA, and circRNA expression profiling datasets from the Gene Expression Omnibus (GEO) database. After data pretreatment, differentially expressed mRNAs (DEmRNAs), microRNAs (DEmiRNAs), and circRNAs (DEcircRNAs) were identified between the TOF and healthy groups, and a global triple ceRNA regulatory network, including circRNAs, miRNAs, and mRNAs based on the integrated data, was constructed. A functional enrichment analysis was performed on the Metascape website to explore the biological functions of the selected genes. Then, we constructed a protein-protein interaction (PPI) network and identified seven hub genes using the cytoHubba and MCODE plug-ins in the Cytoscape software, including BCL2L11, PIK3R1, SOCS3, OSMR, STAT3, RUNX3, and IL6R. Additionally, a circRNA–miRNA–hub gene subnetwork was established, and its enrichment analysis results indicated that the extrinsic apoptotic signaling pathway, JAK-STAT signaling pathway and PI3K-Akt signaling pathway may be involved in the pathogenesis of TOF. We further identified the hsa_circ_000601/hsa-miR-148a/BCL2L11 axis as a crucial signaling pathway axis from the subnetwork. This study provides a novel regulatory network for the pathogenesis of TOF, revealing the possible molecular mechanisms and crucial regulatory pathways that may provide new strategies for candidate diagnostic biomarkers or potential therapeutic targets for TOF.
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Affiliation(s)
- Zunqi Kan
- College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Wenli Yan
- College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ning Wang
- College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuqing Fang
- College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Huanyu Gao
- College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yongmei Song
- Institute for Literature and Culture of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
- *Correspondence: Yongmei Song,
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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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Ali SA, Peffers MJ, Ormseth MJ, Jurisica I, Kapoor M. The non-coding RNA interactome in joint health and disease. Nat Rev Rheumatol 2021; 17:692-705. [PMID: 34588660 DOI: 10.1038/s41584-021-00687-y] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2021] [Indexed: 02/07/2023]
Abstract
Non-coding RNAs have distinct regulatory roles in the pathogenesis of joint diseases including osteoarthritis (OA) and rheumatoid arthritis (RA). As the amount of high-throughput profiling studies and mechanistic investigations of microRNAs, long non-coding RNAs and circular RNAs in joint tissues and biofluids has increased, data have emerged that suggest complex interactions among non-coding RNAs that are often overlooked as critical regulators of gene expression. Identifying these non-coding RNAs and their interactions is useful for understanding both joint health and disease. Non-coding RNAs regulate signalling pathways and biological processes that are important for normal joint development but, when dysregulated, can contribute to disease. The specific expression profiles of non-coding RNAs in various disease states support their roles as promising candidate biomarkers, mediators of pathogenic mechanisms and potential therapeutic targets. This Review synthesizes literature published in the past 2 years on the role of non-coding RNAs in OA and RA with a focus on inflammation, cell death, cell proliferation and extracellular matrix dysregulation. Research to date makes it apparent that 'non-coding' does not mean 'non-essential' and that non-coding RNAs are important parts of a complex interactome that underlies OA and RA.
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Affiliation(s)
- Shabana A Ali
- Bone and Joint Center, Department of Orthopaedic Surgery, Henry Ford Health System, Detroit, MI, USA. .,Center for Molecular Medicine and Genetics, School of Medicine, Wayne State University, Detroit, MI, USA.
| | - Mandy J Peffers
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
| | - Michelle J Ormseth
- Department of Research and Development, Veterans Affairs Medical Center, Nashville, TN, USA.,Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Igor Jurisica
- Osteoarthritis Research Program, Division of Orthopaedics, Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Data Science Discovery Centre for Chronic Diseases, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Mohit Kapoor
- Osteoarthritis Research Program, Division of Orthopaedics, Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada. .,Department of Surgery and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.
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Zhu H, Chen H, Ding D, Wang S, Dai X, Zhu Y. Overexpression of PIK3R1 Promotes Bone Formation by Regulating Osteoblast Differentiation and Osteoclast Formation. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:2909454. [PMID: 34691235 PMCID: PMC8531831 DOI: 10.1155/2021/2909454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 09/20/2021] [Indexed: 11/23/2022]
Abstract
In an effort to bolster our understanding of regulation of bone formation in the context of osteoporosis, we screened out differentially expressed genes in osteoporosis patients with high and low bone mineral density by bioinformatics analysis. PIK3R1 is increasingly being nominated as a pivotal mediator in the differentiation of osteoblasts and osteoclasts that is closely related to bone formation. However, the specific mechanisms underlying the way that PIK3R1 affects bone metabolism are not fully elucidated. We intended to examine the potential mechanism by which PIK3R1 regulates osteoblast differentiation. Enrichment analysis was therefore carried out for differentially expressed genes. We noted that the estrogen signaling pathway, TNF signaling pathway, and osteoclast differentiation were markedly associated with ossification, and they displayed enrichment in PIK3R1. Based on western blot, qRT-PCR, and differentiation analysis in vitro, we found that upregulation of PIK3R1 enhanced osteoblastic differentiation, as evidenced by increased levels of investigated osteoblast-related genes as well as activities of ALP and ARS, while it notably decreased levels of investigated osteoclast-related genes. On the contrary, downregulation of PIK3R1 decreased levels of osteoblast-related genes and increased levels of osteoclast-related genes. Besides, in vitro experiments revealed that PIK3R1 facilitated proliferation and repressed apoptosis of osteoblasts but had an opposite impact on osteoclasts. In summary, PIK3R1 exhibits an osteoprotective effect via regulating osteoblast differentiation, which can be represented as a promising therapeutic target for osteoporosis.
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Affiliation(s)
- Haitao Zhu
- Department of Orthopedics, Sheyang County People's Hospital, Yancheng City, 224300 Jiangsu, China
| | - Hua Chen
- Department of Orthopedics, Sheyang County People's Hospital, Yancheng City, 224300 Jiangsu, China
| | - Degang Ding
- Department of Orthopedics, Sheyang County People's Hospital, Yancheng City, 224300 Jiangsu, China
| | - Shui Wang
- Department of Orthopedics, Sheyang County People's Hospital, Yancheng City, 224300 Jiangsu, China
| | - Xiaofeng Dai
- Department of Orthopedics, Sheyang County People's Hospital, Yancheng City, 224300 Jiangsu, China
| | - Yulong Zhu
- Department of Orthopedics, Sheyang County People's Hospital, Yancheng City, 224300 Jiangsu, China
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Circ_0045714/miR-331-3p interaction affects IL-1β-evoked human articular chondrocyte injury through regulating PIK3R3 in a ceRNA regulatory cascade. J Orthop Surg Res 2021; 16:595. [PMID: 34649564 PMCID: PMC8515683 DOI: 10.1186/s13018-021-02738-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/21/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Osteoarthritis (OA) is characterized by joint pain and joint function limitation. Hsa_circ_0045714 (circ_0045714) is a novel OA-related circular RNA. However, its repertoire remains to be further clarified in joint chondrocytes. METHODS RNA and protein expression levels and inflammatory factor levels were detected by real-time quantitative polymerase chain reaction, western blotting and enzyme-linked immunosorbent assay. Cell proliferation and apoptosis were determined by colony formation assay, cell counting kit-8 assay and apoptosis assay. Direct interaction was predicted by bioinformatics method and confirmed by dual-luciferase reporter assay. RESULTS Expression of circ_0045714 and phosphoinositide-3-kinase (PI3K) regulatory subunit 3 (PIK3R3) was declined, and microRNA (miR)-331-3p was promoted in knee articular cartilages and cells from OA patients, as well as interleukin (IL)-1β-challenged human articular chondrocytes (HAC) cell line. In stimulation of IL-1β, HAC cells showed a loss of colony formation ability, cell viability and expression of Bcl-2 and Collagen II, allied with an increase in apoptosis rate and levels of IL-6, IL-8 and tumor necrosis factor-α, Bcl-2-associated X protein, cleaved caspase-3, and ADAM with thrombospondin motif-5. Noticeably, overexpressing circ_0045714 and inhibiting miR-331-3p could suppress IL-1β-evoked these effects, and both were through up-regulating PIK3R3, a key gene in PI3K/AKT signaling pathway. Mechanically, circ_0045714 functioned as competing endogenous RNA (ceRNA) for miR-331-3p and further regulated expression of the downstream target gene PIK3R3. CONCLUSION There was a novel circ_0045714/miR-331-3p/PIK3R3 ceRNA axis in HAC, and its inhibition might be one mechanism of HAC injury in OA.
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Xie W, Jiang L, Huang X, Shang H, Gao M, You W, Tan J, Yan H, Sun W. lncRNA MEG8 is downregulated in osteoarthritis and regulates chondrocyte cell proliferation, apoptosis and inflammation. Exp Ther Med 2021; 22:1153. [PMID: 34504598 PMCID: PMC8393379 DOI: 10.3892/etm.2021.10587] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 04/16/2021] [Indexed: 01/02/2023] Open
Abstract
Long noncoding RNA (lncRNA) maternally expressed 8, small nucleolar RNA host gene (MEG8) has been widely reported for its pro-proliferative, anti-apoptotic and anti-inflammatory effects in diverse diseases. The aim of the present study was to investigate the effects and underlying mechanism of MEG8 on IL-1β-stimulated human osteoarthritis (OA) chondrocytes. C28/I2 chondrocytes were cultured under the stimulation of IL-1β to establish a cellular model of OA. Functional assays involving Cell Counting Kit-8 and flow cytometry were performed to determine proliferation and apoptosis in the cells. The protein expression levels of caspase-3 and inflammatory cytokines were detected using cell-based ELISA. The expression levels of PI3K/AKT pathway-related proteins were evaluated by western blotting. It was identified that MEG8 expression was increased in the cartilage of patients with OA and in IL-1β-treated C28/I2 cells. In C28/I2 cells, silencing of MEG8 expression noticeably triggered IL-1β-induced proliferation suppression, cell death and an inflammatory response. However, transfection with MEG8 displayed adverse effects. Furthermore, MEG8 overexpression prevented IL-1β-induced activation of the PI3K/AKT signaling pathway in C28/I2 cells. These data demonstrated that MEG8 exerted protective effects against IL-1β-induced apoptosis and inflammation of OA chondrocytes by regulating the PI3K/AKT signaling pathway. Thus, the present study demonstrates that MEG8 might be a promising target for the treatment of OA.
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Affiliation(s)
- Wei Xie
- Department of Orthopedics, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Luoyong Jiang
- Department of Orthopedics, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Xiaoyang Huang
- Department of Orthopedics, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Hongxi Shang
- Department of Orthopedics, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Minghong Gao
- Department of Orthopedics, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Wei You
- Department of Orthopedics, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Jifeng Tan
- Department of Orthopedics, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Hong Yan
- Department of Orthopedics, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong 518000, P.R. China
| | - Wei Sun
- Department of Orthopedics, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong 518000, P.R. China
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Fan Z, Liu Y, Shi Z, Deng K, Zhang H, Li Q, Cao S, Li S, Zhang H. MiR-155 promotes interleukin-1β-induced chondrocyte apoptosis and catabolic activity by targeting PIK3R1-mediated PI3K/Akt pathway. J Cell Mol Med 2020; 24:8441-8451. [PMID: 32562373 PMCID: PMC7412691 DOI: 10.1111/jcmm.15388] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 04/01/2020] [Accepted: 04/27/2020] [Indexed: 12/23/2022] Open
Abstract
Osteoarthritis (OA) is a common joint disease characterized by progressive cartilage degradation, in which elevated chondrocyte apoptosis and catabolic activity play an important role. MicroRNA-155 (miR-155) has recently been shown to regulate apoptosis and catabolic activity in some pathological circumstances, yet, whether and how miR-155 is associated with OA pathology remain unexplored. We report here that miR-155 level is significantly up-regulated in human OA cartilage biopsies and also in primary chondrocytes stimulated by interleukin-1β (IL-1β), a pivotal pro-catabolic factor promoting cartilage degradation. Moreover, miR-155 inhibition attenuates and its overexpression promotes IL-1β-induced apoptosis and catabolic activity in chondrocytes in vitro. We also demonstrate that the PIK3R1 (p85α regulatory subunit of phosphoinositide 3-kinase (PI3K)) is a target of miR-155 in chondrocytes, and more importantly, PIK3R1 restoration abrogates miR-155 effects on chondrocyte apoptosis and catabolic activity. Mechanistically, PIK3R1 positively regulates the transduction of PI3K/Akt pathway, and a specific Akt inhibitor reverses miR-155 effects on promoting chondrocyte apoptosis and catabolic activity, phenocopying the results obtained via PIK3R1 knockdown, hence establishing that miR-155 promotes chondrocyte apoptosis and catabolic activity through targeting PIK3R1-mediated PI3K/Akt pathway activation. Altogether, our study discovers novel roles and mechanisms of miR-155 in regulating chondrocyte apoptosis and catabolic activity, providing an implication for therapeutically intervening cartilage degradation and OA progression.
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Affiliation(s)
- Zhiyong Fan
- Department of Orthopaedic SurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Yinghui Liu
- Department of Infectious DiseaseThe Third Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Zhengliang Shi
- Department of Orthopaedic SurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Kai Deng
- Department of Orthopaedic SurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Hua Zhang
- Department of Orthopaedic SurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Qiutong Li
- Department of Orthopaedic SurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Shuxing Cao
- Department of Orthopaedic SurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Shentai Li
- Department of Orthopaedic SurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Hongliang Zhang
- Department of Orthopaedic SurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangChina
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