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Li Z, Lu J. CircRNAs in osteoarthritis: research status and prospect. Front Genet 2023; 14:1173812. [PMID: 37229197 PMCID: PMC10203419 DOI: 10.3389/fgene.2023.1173812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 04/18/2023] [Indexed: 05/27/2023] Open
Abstract
Osteoarthritis (OA) is the most common joint disease globally, and its progression is irreversible. The mechanism of osteoarthritis is not fully understood. Research on the molecular biological mechanism of OA is deepening, among which epigenetics, especially noncoding RNA, is an emerging hotspot. CircRNA is a unique circular noncoding RNA not degraded by RNase R, so it is a possible clinical target and biomarker. Many studies have found that circRNAs play an essential role in the progression of OA, including extracellular matrix metabolism, autophagy, apoptosis, the proliferation of chondrocytes, inflammation, oxidative stress, cartilage development, and chondrogenic differentiation. Differential expression of circRNAs was also observed in the synovium and subchondral bone in the OA joint. In terms of mechanism, existing studies have mainly found that circRNA adsorbs miRNA through the ceRNA mechanism, and a few studies have found that circRNA can serve as a scaffold for protein reactions. In terms of clinical transformation, circRNAs are considered promising biomarkers, but no large cohort has tested their diagnostic value. Meanwhile, some studies have used circRNAs loaded in extracellular vesicles for OA precision medicine. However, there are still many problems to be solved in the research, such as the role of circRNA in different OA stages or OA subtypes, the construction of animal models of circRNA knockout, and more research on the mechanism of circRNA. In general, circRNAs have a regulatory role in OA and have particular clinical potential, but further studies are needed in the future.
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Affiliation(s)
- Zhuang Li
- School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Jun Lu
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
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2
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Xue Q, Huang Y, Chang J, Cheng C, Wang Y, Wang X, Miao C. CircRNA-mediated ceRNA mechanism in Osteoarthritis: special emphasis on circRNAs in exosomes and the crosstalk of circRNAs and RNA methylation. Biochem Pharmacol 2023; 212:115580. [PMID: 37148980 DOI: 10.1016/j.bcp.2023.115580] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/08/2023]
Abstract
Osteoarthritis (OA) is an age-related joint disease with chronic inflammation, progressive articular cartilage destruction and subchondral bone sclerosis. CircRNAs (circRNAs) are a class of non-coding RNA with a circular structure that participate in a series of important pathophysiological processes of OA, especially its ceRNA mechanisms, and play an important role in OA. CircRNAs may be potential biomarkers for the diagnosis and prognosis of OA. Additionally, differentially expressed circRNAs were found in patients with OA, indicating that circRNAs are involved in the pathogenesis of OA. Experiments have shown that the intra-articular injection of modified circRNAs can effectively relieve OA. Exosomal circRNAs and methylated circRNAs also provide new ideas for the treatment of OA. Clarifying the important roles of circRNAs in OA will deepen people's understanding of the pathogenesis of OA. CircRNAs may be developed as new biomarkers or drug targets for the diagnosis of OA and provide new methods for the treatment of OA.
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Affiliation(s)
- Qiuyun Xue
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yurong Huang
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Jun Chang
- Department of Orthopaedics, the First Affiliated Hospital of Anhui Medical University, Hefei, China; Anhui Public Health Clinical Center, Hefei, China.
| | - Chenglong Cheng
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yuting Wang
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Xiaomei Wang
- Department of Humanistic Nursing, School of Nursing, Anhui University of Chinese Medicine, Hefei, China.
| | - Chenggui Miao
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China; Institute of Rheumatism, Anhui University of Chinese Medicine, Hefei, China
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Zhang H, Xiang X, Zhou B, Chen J, Sun Y, Zhang S, Li A, Li J. Circular RNA SLTM as a miR-421-competing endogenous RNA to mediate HMGB2 expression stimulates apoptosis and inflammation in arthritic chondrocytes. J Biochem Mol Toxicol 2023; 37:e23306. [PMID: 36935520 DOI: 10.1002/jbt.23306] [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: 06/30/2022] [Revised: 11/10/2022] [Accepted: 01/05/2023] [Indexed: 03/21/2023]
Abstract
Osteoarthritis (OA) is the most common age-related joint disease characterized by chronic inflammation, progressive articular cartilage destruction, and subchondral sclerosis. Accumulating evidence suggests that circular RNAs (circRNAs) play key roles in OA, but the function of circSLTM in OA remains greatly unknown. Therefore, this study focused on interleukin-1β (IL-1β)-treated primary human chondrocytes as well as a rat model to investigate the expression pattern and functional role of circSLTM in OA in vitro and in vivo. CircSLTM and high mobility group protein B2 (HMGB2) were upregulated in IL-1β-induced chondrocytes, whereas miR-421 was downregulated. Knockdown of circSLTM or overexpression of miR-421 ameliorated IL-1β-induced chondrocyte apoptosis and inflammation. The regulatory relationship between circSLTM and miR-421, as well as that between miR-421 and HMGB2, was predicted by bioinformatics and then verified by the RNA immunoprecipitation experiment and dual-luciferase reporter gene assay. Furthermore, silencing of circSLTM increased cartilage destruction and decreased cartilage tissue apoptosis rate and inflammation in a rat model of OA. Taken together, our findings demonstrate the fundamental role of circSLTM in OA progression and provide a potential molecular target for OA therapy.
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Affiliation(s)
- Hua Zhang
- Department of Fourth Orthopaedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou City, Guangdong Province, China
| | - XiaoBing Xiang
- Department of Fourth Orthopaedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou City, Guangdong Province, China
| | - BenGen Zhou
- Department of Fourth Orthopaedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou City, Guangdong Province, China
| | - JianFa Chen
- Department of Fourth Orthopaedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou City, Guangdong Province, China
| | - YouQiang Sun
- Department of Fourth Orthopaedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou City, Guangdong Province, China
| | - ShuangXiao Zhang
- Department of Fourth Orthopaedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou City, Guangdong Province, China
| | - AiHua Li
- Department of Fourth Orthopaedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou City, Guangdong Province, China
| | - Jie Li
- Department of Fourth Orthopaedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou City, Guangdong Province, China
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Fine N, Lively S, Séguin CA, Perruccio AV, Kapoor M, Rampersaud R. Intervertebral disc degeneration and osteoarthritis: a common molecular disease spectrum. Nat Rev Rheumatol 2023; 19:136-152. [PMID: 36702892 DOI: 10.1038/s41584-022-00888-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2022] [Indexed: 01/27/2023]
Abstract
Intervertebral disc degeneration (IDD) and osteoarthritis (OA) affecting the facet joint of the spine are biomechanically interdependent, typically occur in tandem, and have considerable epidemiological and pathophysiological overlap. Historically, the distinctions between these degenerative diseases have been emphasized. Therefore, research in the two fields often occurs independently without adequate consideration of the co-dependence of the two sites, which reside within the same functional spinal unit. Emerging evidence from animal models of spine degeneration highlight the interdependence of IDD and facet joint OA, warranting a review of the parallels between these two degenerative phenomena for the benefit of both clinicians and research scientists. This Review discusses the pathophysiological aspects of IDD and OA, with an emphasis on tissue, cellular and molecular pathways of degeneration. Although the intervertebral disc and synovial facet joint are biologically distinct structures that are amenable to reductive scientific consideration, substantial overlap exists between the molecular pathways and processes of degeneration (including cartilage destruction, extracellular matrix degeneration and osteophyte formation) that occur at these sites. Thus, researchers, clinicians, advocates and policy-makers should consider viewing the burden and management of spinal degeneration holistically as part of the OA disease continuum.
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Affiliation(s)
- Noah Fine
- Osteoarthritis Research Program, Division of Orthopaedics, Schroeder Arthritis Institute, University Health Network, Toronto, Ontario, Canada.,Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Starlee Lively
- Osteoarthritis Research Program, Division of Orthopaedics, Schroeder Arthritis Institute, University Health Network, Toronto, Ontario, Canada.,Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Cheryle Ann Séguin
- Department of Physiology & Pharmacology, Schulich School of Medicine & Dentistry, Bone and Joint Institute, University of Western Ontario London, London, Ontario, Canada
| | - Anthony V Perruccio
- Osteoarthritis Research Program, Division of Orthopaedics, Schroeder Arthritis Institute, University Health Network, Toronto, Ontario, Canada.,Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.,Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mohit Kapoor
- Osteoarthritis Research Program, Division of Orthopaedics, Schroeder Arthritis Institute, University Health Network, Toronto, Ontario, Canada.,Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Raja Rampersaud
- Osteoarthritis Research Program, Division of Orthopaedics, Schroeder Arthritis Institute, University Health Network, Toronto, Ontario, Canada. .,Krembil Research Institute, University Health Network, Toronto, Ontario, Canada. .,Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Rao C, Shi S. Development of Nanomaterials to Target Articular Cartilage for Osteoarthritis Therapy. Front Mol Biosci 2022; 9:900344. [PMID: 36032667 PMCID: PMC9402910 DOI: 10.3389/fmolb.2022.900344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/09/2022] [Indexed: 01/10/2023] Open
Abstract
Osteoarthritis (OA) is an obstinate, degradative, and complicated disease that has drawn much attention worldwide. Characterized by its stubborn symptoms and various sequela, OA causes much financial burden on both patients and the health system. What’s more, conventional systematic therapy is not effective enough and causes multiple side effects. There’s much evidence that nanoparticles have unique properties such as high penetration, biostability, and large specific surface area. Thus, it is urgent to exploit novel medications for OA. Nanomaterials have been sufficiently studied, exploiting diverse nano-drug delivery systems (DDSs) and targeted nano therapeutical molecules. The nanomaterials are primarily intra-articular injected under the advantages of high topical concentration and low dosage. After administration, the DDS and targeted nano therapeutical molecules can specifically react with the components, including cartilage and synovium of a joint in OA, furthermore attenuate the chondrocyte apoptosis, matrix degradation, and macrophage recruitment. Thus, arthritis would be alleviated. The DDSs could load with conventional anti-inflammatory drugs, antibodies, RNA, and so on, targeting chondrocytes, synovium, or extracellular matrix (ECM) and releasing the molecules sequentially. The targeted nano therapeutical molecules could directly get to the targeted tissue, alleviating the inflammation and promoting tissue healing. This review will comprehensively collect and evaluate the targeted nanomaterials to articular cartilage in OA.
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Zhang Y, Zheng H, Li B. Circ_0110251 overexpression alleviates IL-1β-induced chondrocyte apoptosis and extracellular matrix degradation by regulating miR-3189-3p/SPRY1 axis in osteoarthritis. Autoimmunity 2022; 55:168-178. [PMID: 35196925 DOI: 10.1080/08916934.2022.2027917] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Mounting evidence indicates that circular RNAs (circRNAs) are involved in the progression of human diseases, including osteoarthritis (OA). In this study, we focussed on the functions and potential mechanism of circ_0110251 in OA. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to determine the expression of circ_0110251, collagen type XI alpha 1 chain (COL11A1), microRNA-3189-3p (miR-3189-3p) and sprouty receptor tyrosine kinase signalling antagonist 1 (SPRY1). The cyclisation analysis of circ_0110251 was analysed by RNase R and Actinomycin D assays. Flow cytometry analysis was conducted to analyse cell apoptosis. Western blot assay was used to measure the levels of extracellular matrix degradation (ECM)-associated markers and SPRY1. Dual-luciferase reporter assay, RNA immunoprecipitation (RIP) assay and RNA pull down assay were performed to analyse the relationships among circ_0110251, miR-3189-3p and SPRY1. RESULTS Circ_0110251 was downregulated in OA cartilage tissues and IL-1β-induced chondrocytes. IL-1β promoted the apoptosis and ECM degradation in chondrocytes, while circ_0110251 overexpression relieved the effects. Circ_0110251 functioned as the sponge for miR-3189-3p and miR-3189-3p overexpression reversed the effect of circ_0110251 on IL-1β-induced chondrocyte damage. Additionally, SPRY1 served as the target gene of miR-3189-3p. MiR-3189-3p inhibition ameliorated IL-1β-induced chondrocyte apoptosis and ECM degradation, while SPRY1 silencing rescued the impacts. CONCLUSION Circ_0110251 protected chondrocytes from IL-1β-induced apoptosis and ECM degradation in OA via sponging miR-3189-3p and elevating SPRY1.
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Affiliation(s)
- Yawei Zhang
- Department of Emergency Orthopedics, Gansu Provincial Hospital of TCM, Lanzhou, China
| | - Hengheng Zheng
- Department of Emergency Orthopedics, Gansu Provincial Hospital of TCM, Lanzhou, China
| | - Baitong Li
- Department of Emergency Orthopedics, Gansu Provincial Hospital of TCM, Lanzhou, China
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Zhu J, Guo Y. Circ_0020093 Overexpression Alleviates Interleukin-1 Beta-induced Inflammation, Apoptosis and Extracellular Matrix Degradation in Human Chondrocytes by Targeting the miR-181a-5p/ERG Pathway. Immunol Invest 2022; 51:1660-1677. [PMID: 35012421 DOI: 10.1080/08820139.2021.2021938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Osteoarthritis (OA) is a well-known chronic degenerative joint disease, with multiple changes in the phenotype of chondrocytes. Circular RNAs (circRNAs) have been shown to be involved in various human diseases, including OA. The purpose of this study was to determine the role of circ_0020093 in OA pathological changes in vitro. C28/I2 cells were treated with interleukin-1 beta (IL-1β) to mimic OA pathological conditions. The expression levels of circ_0020093, miR-181a-5p and ETS-related gene (ERG) mRNA were measured by quantitative real-time PCR (qRT-PCR). For functional analyses, cell proliferative capacity was detected using EdU assay and CCK-8 assay. Inflammatory response was assessed by determining the release of pro-inflammatory factors using ELISA kits. Cell apoptosis was examined by flow cytometry assay. The levels of apoptosis-related proteins and extracellular matrix (ECM)-associated proteins were assessed by Western blot. The binding relationship between miR-181a-5p and circ_0020093 or ERG was confirmed by RNA pull-down assay, dual-luciferase reporter assay or RIP assay. The expression level of circ_0020093 was decreased in IL-1β-treated C28/I2 cells. Circ_0020093 overexpression relieved inflammatory responses, cell apoptosis and ECM degradation in IL-1β-induced C28/I2 cells. Circ_0020093 directly targeted miR-181a-5p, and miR-181a-5p bound to the 3' -untranslated region (3'UTR) of ERG to regulate ERG expression. Circ_0020093 overexpression promoted the expression of ERG by sponging miR-181a-5p. Rescue experiments showed that miR-181a-5p overexpression or ERG knockdown could reverse the inhibitory effects of circ_0020093 overexpression on the pathological changes in IL-1β-induced C28/I2 cells. Circ_0020093 overexpression alleviated IL-1β-induced human chondrocyte inflammatory injury, apoptosis and ECM degradation by targeting miR-181a-5p/ERG pathway.
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Affiliation(s)
- Jun Zhu
- Department of Orthopedics, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang City, Hubei Province, China
| | - Yongchun Guo
- Department of Orthopedics, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang City, Hubei Province, China
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Kim J. Dysregulated circular RNAs and their pathological implications in knee osteoarthritis: potential novel therapeutic targets and diagnostic biomarkers. ALL LIFE 2022. [DOI: 10.1080/26895293.2021.2020172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Jaehee Kim
- Department of Alternative Medicine, Graduate School of Alternative Medicine, Kyonggi University (Seoul Campus), Seoul, Republic of Korea
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9
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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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D'Souza S, Nair AP, Sahu GR, Vaidya T, Shetty R, Khamar P, Mullick R, Gupta S, Dickman MM, Nuijts RMMA, Mohan RR, Ghosh A, Sethu S. Keratoconus patients exhibit a distinct ocular surface immune cell and inflammatory profile. Sci Rep 2021; 11:20891. [PMID: 34686755 PMCID: PMC8536707 DOI: 10.1038/s41598-021-99805-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/23/2021] [Indexed: 02/06/2023] Open
Abstract
Inflammatory factors have been considered to contribute to keratoconus (KC) pathogenesis. This study aims to determine the immune cells subsets and soluble inflammatory factor profile on the ocular surface of KC patients. 32 KC subjects (51 eyes) across different grades of severity and 15 healthy controls (23 eyes) were included in the study. Keratometry and pachymetry measurements were recorded. Ocular surface immune cells (collected by ocular surface wash) immunophenotyped using flow cytometry include leukocytes, neutrophils, macrophages, natural killer (NK) cells, pan-T cells, gamma delta T (γδT) cells and NKT cells. Tear fluid collected using Schirmer's strip was used to measure 50 soluble factors by multiplex ELISA. Proportions of activated neutrophils, NK cells and γδT cells were significantly increased in KC patients. Significantly higher levels of tear fluid IL-1β, IL-6, LIF, IL-17A, TNFα, IFNα/β/γ, EPO, TGFβ1, PDGF-BB, sVCAM, sL-selectin, granzyme-B, perforin, MMP2, sFasL and IgE, along with significantly lower levels of IL-1α and IL-9 were observed in KC patients. Alterations observed in few of the immuno-inflammatory parameters correlated with grades of disease, allergy, eye rubbing and keratometry or pachymetry measurements. The observation implies a distinct immuno-inflammatory component in KC pathogenesis and its potential as an additional therapeutic target in KC management.
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Affiliation(s)
- Sharon D'Souza
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Archana Padmanabhan Nair
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India.,Manipal Academy of Higher Education, Manipal, India
| | - Ganesh Ram Sahu
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India
| | - Tanuja Vaidya
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India.,Manipal Academy of Higher Education, Manipal, India
| | - Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Pooja Khamar
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Ritika Mullick
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Sneha Gupta
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Mor M Dickman
- University Eye Clinic Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands.,MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Rudy M M A Nuijts
- University Eye Clinic Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Rajiv R Mohan
- Department of Veterinary Medicine and Surgery, University of Missouri, 1600 E. Rollins Rd, Columbia, MO, 65211, USA. .,Mason Eye Institute, School of Medicine, University of Missouri, Columbia, MO, USA. .,Harry S Truman Veterans' Memorial Hospital, Columbia, MO, USA.
| | - Arkasubhra Ghosh
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India. .,Singapore Eye Research Institute, Singapore, Singapore.
| | - Swaminathan Sethu
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India.
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Pan D, Lyu Y, Zhang N, Wang X, Lei T, Liang Z. RIP2 knockdown inhibits cartilage degradation and oxidative stress in IL-1β-treated chondrocytes via regulating TRAF3 and inhibiting p38 MAPK pathway. Clin Immunol 2021; 232:108868. [PMID: 34587513 DOI: 10.1016/j.clim.2021.108868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/14/2021] [Accepted: 09/23/2021] [Indexed: 01/04/2023]
Abstract
Receptor-interacting protein 2 (RIP2) is a key mediator implicated in multiple cellular processes, and its dysregulation has been recently reported in colitis, asthma and other inflammatory diseases. However, the effects of RIP2 on osteoarthritis (OA) and the underlying mechanisms remain unclear. In this study, we found that RIP2 expression was upregulated in human articular cartilage tissues with OA and interleukin-1β (IL-1β)-treated chondrocytes. Knockdown of RIP2 inhibited IL-1β-induced extracellular matrix (ECM) and oxidative stress. Moreover, knockdown of TRAF3 reversed the effects of RIP2 silencing on cartilage degradation and oxidative stress in IL-1β-induced chondrocytes. In addition, p38 mitogen-activated protein kinase (MAPK) activator dehydrocorydalmine chloride (Dc) also reversed the effects of RIP2 silencing on IL-1β-induced chondrocytes. Taken together, our data reveal that RIP2 knockdown inhibits cartilage degradation and oxidative stress in IL-1β-treated chondrocytes by regulating TRAF3 expression and p38 MAPK pathway activation.
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Affiliation(s)
- DongSheng Pan
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China
| | - Yanhong Lyu
- Department of Gynecology and Obstetrics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China
| | - Na Zhang
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China
| | - Xuankang Wang
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China
| | - Tao Lei
- School of Biomedical Engineering, Air Force Military Medical University, Xi'an 710032, Shaanxi, China.
| | - Zhuowen Liang
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, Shaanxi, China.
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