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Yang L, Yu X, Liu M, Cao Y. A comprehensive analysis of biomarkers associated with synovitis and chondrocyte apoptosis in osteoarthritis. Front Immunol 2023; 14:1149686. [PMID: 37545537 PMCID: PMC10401591 DOI: 10.3389/fimmu.2023.1149686] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 06/26/2023] [Indexed: 08/08/2023] Open
Abstract
Introduction Osteoarthritis (OA) is a chronic disease with high morbidity and disability rates whose molecular mechanism remains unclear. This study sought to identify OA markers associated with synovitis and cartilage apoptosis by bioinformatics analysis. Methods A total of five gene-expression profiles were selected from the Gene Expression Omnibus database. We combined the GEO with the GeneCards database and performed Gene Ontology and Kyoto Encyclopedia of Genes and Genome analyses; then, the least absolute shrinkage and selection operator (LASSO) algorithm was used to identify the characteristic genes, and a predictive risk score was established. We used the uniform manifold approximation and projection (UMAP) method to identify subtypes of OA patients, while the CytoHubba algorithm and GOSemSim R package were used to screen out hub genes. Next, an immunological assessment was performed using single-sample gene set enrichment analysis and CIBERSORTx. Results A total of 56OA-related differential genes were selected, and 10 characteristic genes were identified by the LASSO algorithm. OA samples were classified into cluster 1 and cluster 2 subtypes byUMAP, and the clustering results showed that the characteristic genes were significantly different between these groups. MYOC, CYP4B1, P2RY14, ADIPOQ, PLIN1, MFAP5, and LYVE1 were highly expressed in cluster 2, and ANKHLRC15, CEMIP, GPR88, CSN1S1, TAC1, and SPP1 were highly expressed in cluster 1. Protein-protein interaction network analysis showed that MMP9, COL1A, and IGF1 were high nodes, and the differential genes affected the IL-17 pathway and tumor necrosis factor pathway. The GOSemSim R package showed that ADIPOQ, COL1A, and SPP1 are closely related to the function of 31 hub genes. In addition, it was determined that mmp9 and Fos interact with multiple transcription factors, and the ssGSEA and CIBERSORTx algorithms revealed significant differences in immune infiltration between the two OA subtypes. Finally, a qPCR experiment was performed to explore the important genes in rat cartilage and synovium tissues; the qPCR results showed that COL1A and IL-17A were both highly expressed in synovitis tissues and cartilage tissues of OA rats, which is consistent with the predicted results. Discussion In the future, common therapeutic targets might be found forsimultaneous remissions of both phenotypes of OA.
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Affiliation(s)
- Ling Yang
- Department of Hematology, The First People’s Hospital of Changzhou, Third Affiliated Hospital of Soochow University, Changzhou, China
- Department of Traditional Chinese Medicine, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xueyuan Yu
- Department of Plastic, Aesthetic and Maxillofacial Surgery, The First Affiliated Hospital of Xi’an Jiao Tong University, Xi’an, China
| | - Meng Liu
- Department of Clinical Laboratory,The First Affiliated Hospital of Xi’an Jiao Tong University, Xi’an, China
| | - Yang Cao
- Department of Hematology, The First People’s Hospital of Changzhou, Third Affiliated Hospital of Soochow University, Changzhou, China
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Mourad O, Mastikhina O, Khan S, Sun X, Hatkar R, Williams K, Nunes SS. Antisenescence Therapy Improves Function in a Human Model of Cardiac Fibrosis-on-a-Chip. ACS MATERIALS AU 2023; 3:360-370. [PMID: 38090129 PMCID: PMC10347691 DOI: 10.1021/acsmaterialsau.3c00009] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/14/2023] [Accepted: 04/17/2023] [Indexed: 02/12/2024]
Abstract
Cardiac fibrosis is a significant contributor to heart failure and is characterized by abnormal ECM deposition and impaired contractile function. We have previously developed a model of cardiac fibrosis via TGF-β treatment of engineered microtissues using heart-on-a-chip technology which incorporates human induced pluripotent stem cell-derived cardiomyocytes and cardiac fibroblasts. Here, we describe that these cardiac fibrotic tissues expressed markers associated with cellular senescence via transcriptomic analysis. Treatment of fibrotic tissues with the senolytic drugs dasatinib and quercetin (D+Q) led to an improvement of contractile function, reduced passive tension, and downregulated senescence-related gene expression, an outcome we were previously unable to achieve using standard-of-care drugs. The improvement in functional parameters was also associated with a reduction in fibroblast density, though no changes in absolute collagen deposition were observed. This study demonstrates the benefit of senolytic treatment for cardiac fibrosis in a human-relevant model, supporting data in animal models, and will enable the further elucidation of cell-specific effects of senolytics and how they impact cardiac fibrosis and senescence.
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Affiliation(s)
- Omar Mourad
- Toronto
General Hospital Research Institute, University
Health Network, Toronto, Canada M5G 2C4
- Institute
of Biomedical Engineering, University of
Toronto, Toronto, Canada M5S 3G9
| | - Olya Mastikhina
- Toronto
General Hospital Research Institute, University
Health Network, Toronto, Canada M5G 2C4
- Institute
of Biomedical Engineering, University of
Toronto, Toronto, Canada M5S 3G9
| | - Safwat Khan
- Toronto
General Hospital Research Institute, University
Health Network, Toronto, Canada M5G 2C4
- Institute
of Biomedical Engineering, University of
Toronto, Toronto, Canada M5S 3G9
| | - Xuetao Sun
- Toronto
General Hospital Research Institute, University
Health Network, Toronto, Canada M5G 2C4
| | - Rupal Hatkar
- Toronto
General Hospital Research Institute, University
Health Network, Toronto, Canada M5G 2C4
- Institute
of Biomedical Engineering, University of
Toronto, Toronto, Canada M5S 3G9
| | - Kenneth Williams
- Toronto
General Hospital Research Institute, University
Health Network, Toronto, Canada M5G 2C4
- Laboratory
of Medicine and Pathobiology, University
of Toronto, Toronto, Canada M5S 1A8
| | - Sara S. Nunes
- Toronto
General Hospital Research Institute, University
Health Network, Toronto, Canada M5G 2C4
- Institute
of Biomedical Engineering, University of
Toronto, Toronto, Canada M5S 3G9
- Ajmera
Transplant Center, University Health Network, Toronto, Canada M5G 2C4
- Laboratory
of Medicine and Pathobiology, University
of Toronto, Toronto, Canada M5S 1A8
- Heart
& Stroke/Richard Lewar Centre of Excellence, University of Toronto, Toronto, Canada M5S 3H2
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Macaron G, Larochelle C, Arbour N, Galmard M, Girard JM, Prat A, Duquette P. Impact of aging on treatment considerations for multiple sclerosis patients. Front Neurol 2023; 14:1197212. [PMID: 37483447 PMCID: PMC10361071 DOI: 10.3389/fneur.2023.1197212] [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: 03/30/2023] [Accepted: 05/18/2023] [Indexed: 07/25/2023] Open
Abstract
With a rapidly aging global population and improvement of outcomes with newer multiple sclerosis (MS)-specific disease-modifying therapies (DMTs), the epidemiology of MS has shifted to an older than previously described population, with a peak prevalence of the disease seen in the 55-65 years age group. Changes in the pathophysiology of MS appear to be age-dependent. Several studies have identified a consistent phase of disability worsening around the fifth decade of life. The latter appears to be independent of prior disease duration and inflammatory activity and concomitant to pathological changes from acute focal active demyelination to chronic smoldering plaques, slow-expanding lesions, and compartmentalized inflammation within the central nervous system (CNS). On the other hand, decreased CNS tissue reserve and poorer remyelinating capacity with aging lead to loss of relapse recovery potential. Aging with MS may imply longer exposure to DMTs, although treatment efficacy in patients >55 years has not been evaluated in pivotal randomized controlled trials and appears to decrease with age. Older individuals are more prone to adverse effects of DMTs, an important aspect of treatment individualization. Aging with MS also implies a higher global burden of comorbid illnesses that contribute to overall impairments and represent a crucial confounder in interpreting clinical worsening. Discontinuation of DMTs after age 55, when no evidence of clinical or radiological activity is detected, is currently under the spotlight. In this review, we will discuss the impact of aging on MS pathobiology, the effect of comorbidities and other confounders on clinical worsening, and focus on current therapeutic considerations in this age group.
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Affiliation(s)
- Gabrielle Macaron
- Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
- Department of Neurosciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
- Faculté de Médecine, Université Saint-Joseph de Beyrouth, Beirut, Lebanon
| | - Catherine Larochelle
- Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
- Department of Neurosciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
| | - Nathalie Arbour
- Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
- Department of Neurosciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
| | - Manon Galmard
- Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
| | - Jean Marc Girard
- Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
- Department of Neurosciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
| | - Alexandre Prat
- Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
- Department of Neurosciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
| | - Pierre Duquette
- Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
- Department of Neurosciences, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Montréal, QC, Canada
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Abstract
Senescence is a complex cell state characterized by stable cell cycle arrest and a unique secretory pattern known as the senescence-associated secretory phenotype (SASP). The SASP factors, which are heterogeneous and tissue specific, normally include chemokines, cytokines, growth factors, adhesion molecules, and lipid components that can lead to multiple age-associated disorders by eliciting local and systemic consequences. The skeleton is a highly dynamic organ that changes constantly in shape and composition. Senescent cells in bone and bone marrow produce diverse SASP factors that induce alterations of the skeleton through paracrine effects. Herein, we refer to bone cell-associated SASP as "bone-SASP." In this review, we describe current knowledge of cellular senescence and SASP, focusing on the role of senescent cells in mediating bone pathologies during natural aging and premature aging syndromes. We also summarize the role of cellular senescence and the bone-SASP in glucocorticoids-induced bone damage. In addition, we discuss the role of bone-SASP in the development of osteoarthritis, highlighting the mechanisms by which bone-SASP drives subchondral bone changes in metabolic syndrome-associated osteoarthritis.
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Affiliation(s)
- Ching-Lien Fang
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Bin Liu
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Mei Wan
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Ross Building, Room 209, 720 Rutland Avenue, Baltimore, MD, 21205, USA.
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Giannoula Y, Kroemer G, Pietrocola F. Cellular senescence and the host immune system in aging and age-related disorders. Biomed J 2023; 46:100581. [PMID: 36746349 PMCID: PMC10210012 DOI: 10.1016/j.bj.2023.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Cellular senescence is a complex process involving a close-to-irreversible arrest of the cell cycle, the acquisition of the senescence-associated secretory phenotype (SASP), as well as profound changes in the expression of cell surface proteins that determine the recognition of senescent cells by innate and cognate immune effectors including macrophages, NK, NKT and T cells. It is important to note that senescence can occur in a transient fashion to improve the homeostatic response of tissues to stress. Moreover, both the excessive generation and the insufficient elimination of senescent cells may contribute to pathological aging. Attempts are being made to identify the mechanisms through which senescent cell avoid their destruction by immune effectors. Such mechanisms involve the cell surface expression of immunosuppressive molecules including PD-L1 and PD-L2 to ligate PD-1 on T cells, as well as tolerogenic MHC class-I variants. In addition, senescent cells can secrete factors that attract immunosuppressive and pro-inflammatory cells into the microenvironment. Each of these immune evasion mechanism offers a target for therapeutic intervention, e.g., by blocking the interaction between PD-1 and PD-L1 or PD-L2, upregulating immunogenic MHC class-I molecules and eliminating immunosuppressive cell types. In addition, senescent cells differ in their antigenic makeup and immunopeptidome from their normal counterparts, hence offering the opportunity to stimulate immune response against senescence-associated antigens. Ideally, immunological anti-senescence strategies should succeed in selectively eliminating pathogenic senescent cells but spare homeostatic senescence.
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Affiliation(s)
- Yvonne Giannoula
- Department of Biosciences and Nutrition, Karolinska Institute, Huddinge, Sweden
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, Equipe Labellisé Par La Ligue Contre le Cancer, Université Paris Cité, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France; Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France; Institut Du Cancer Paris CARPEM, Department of Biology, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.
| | - Federico Pietrocola
- Department of Biosciences and Nutrition, Karolinska Institute, Huddinge, Sweden.
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Rizzo MG, Best TM, Huard J, Philippon M, Hornicek F, Duan Z, Griswold AJ, Kaplan LD, Hare JM, Kouroupis D. Therapeutic Perspectives for Inflammation and Senescence in Osteoarthritis Using Mesenchymal Stem Cells, Mesenchymal Stem Cell-Derived Extracellular Vesicles and Senolytic Agents. Cells 2023; 12:1421. [PMID: 37408255 PMCID: PMC10217382 DOI: 10.3390/cells12101421] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/08/2023] [Accepted: 05/13/2023] [Indexed: 07/07/2023] Open
Abstract
Osteoarthritis (OA) is the most common cause of disability worldwide among the elderly. Alarmingly, the incidence of OA in individuals less than 40 years of age is rising, likely due to the increase in obesity and post-traumatic osteoarthritis (PTOA). In recent years, due to a better understanding of the underlying pathophysiology of OA, several potential therapeutic approaches targeting specific molecular pathways have been identified. In particular, the role of inflammation and the immune system has been increasingly recognized as important in a variety of musculoskeletal diseases, including OA. Similarly, higher levels of host cellular senescence, characterized by cessation of cell division and the secretion of a senescence-associated secretory phenotype (SASP) within the local tissue microenvironments, have also been linked to OA and its progression. New advances in the field, including stem cell therapies and senolytics, are emerging with the goal of slowing disease progression. Mesenchymal stem/stromal cells (MSCs) are a subset of multipotent adult stem cells that have demonstrated the potential to modulate unchecked inflammation, reverse fibrosis, attenuate pain, and potentially treat patients with OA. Numerous studies have demonstrated the potential of MSC extracellular vesicles (EVs) as cell-free treatments that comply with FDA regulations. EVs, including exosomes and microvesicles, are released by numerous cell types and are increasingly recognized as playing a critical role in cell-cell communication in age-related diseases, including OA. Treatment strategies for OA are being developed that target senescent cells and the paracrine and autocrine secretions of SASP. This article highlights the encouraging potential for MSC or MSC-derived products alone or in combination with senolytics to control patient symptoms and potentially mitigate the progression of OA. We will also explore the application of genomic principles to the study of OA and the potential for the discovery of OA phenotypes that can motivate more precise patient-driven treatments.
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Affiliation(s)
- Michael G. Rizzo
- Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami Miller School of Medicine, Miami, FL 33146, USA; (M.G.R.); (T.M.B.)
| | - Thomas M. Best
- Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami Miller School of Medicine, Miami, FL 33146, USA; (M.G.R.); (T.M.B.)
| | - Johnny Huard
- Center for Regenerative and Personalized Medicine (CRPM), Steadman Philippon Research Institute, Vail, CO 81657, USA (M.P.)
| | - Marc Philippon
- Center for Regenerative and Personalized Medicine (CRPM), Steadman Philippon Research Institute, Vail, CO 81657, USA (M.P.)
| | - Francis Hornicek
- Department of Orthopedics, Sarcoma Biology Laboratory, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.H.); (Z.D.)
| | - Zhenfeng Duan
- Department of Orthopedics, Sarcoma Biology Laboratory, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.H.); (Z.D.)
| | - Anthony J. Griswold
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL 33136, USA;
| | - Lee D. Kaplan
- Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami Miller School of Medicine, Miami, FL 33146, USA; (M.G.R.); (T.M.B.)
| | - Joshua M. Hare
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, FL 33101, USA
| | - Dimitrios Kouroupis
- Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami Miller School of Medicine, Miami, FL 33146, USA; (M.G.R.); (T.M.B.)
- Diabetes Research Institute, Cell Transplant Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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Wei K, Shu Z, Pu H, Xu H, Li S, Xiao J, Zhu Y, Ma T. Cystathionine-γ-lyase attenuates inflammatory response and pain of osteoarthritis. Int Immunopharmacol 2023; 120:110289. [PMID: 37182456 DOI: 10.1016/j.intimp.2023.110289] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/25/2023] [Accepted: 05/02/2023] [Indexed: 05/16/2023]
Abstract
The chronic articular disease osteoarthritis (OA) is characterized by osteophyte generation, subchondral bone remodeling, and cartilage deterioration. Low levels of H2S catalyzed by cystathionine-γ-lyase (CSE) encoded by Cthhas neuroprotective, cardioprotective, anti-apoptotic, and anti-inflammatory effects thus, Cth is being developed as a potential therapy for the management of the pathogenesis and symptoms of osteoarthritis. Single-cell RNA sequencing (scRNA-seq) and immunohistochemistry of human cartilage revealed that the expression of CTH was decreased in OA patients. We found that Cthoverexpression decrease IL-1β-induced overactivation of the NF-κB signaling pathway. In vivo, Cthoverexpression relieved pain response and cartilage damage in the anterior cruciate ligament transection (ACLT) rat model. In vitro, CSE alleviated chondrocytes catabolism, inflammation, apoptosis, and senescence, and suppressed the NF-κB pathway. We postulate that CSE has therapeutic effects in suppressing inflammation and degeneration in OA and should be further investigated clinically.
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Affiliation(s)
- Kang Wei
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Zixing Shu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Hongxu Pu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Huanhuan Xu
- Department of Obstetrics and Gynecology, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, 100, Xianggang Road, Wuhan 430000, China
| | - Song Li
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Jun Xiao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Yuanli Zhu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China.
| | - Tian Ma
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China.
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Yi Z, Ren L, Wei Y, Chen S, Zhao J, Zhu J, Wu J. Generation of a p21 Reporter Mouse and Its Use to Identify and Eliminate p21 high Cells In Vivo. Int J Mol Sci 2023; 24:5565. [PMID: 36982640 PMCID: PMC10051249 DOI: 10.3390/ijms24065565] [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: 01/21/2023] [Revised: 02/26/2023] [Accepted: 03/06/2023] [Indexed: 03/17/2023] Open
Abstract
P21 and p16 have been identified as inducers of senescence. Many transgenic mouse models have been developed to target cells expressing high levels of p16Ink4a (p16high) and investigate their potential contribution to tissue dysfunction in aging, obesity, and other pathological conditions. However, the specific roles of p21 in various senescence-driven processes remain unclear. To gain a deeper understanding of p21, we built a p21-3MR mouse model containing a p21 promoter-driven module that allowed us to target cells with high p21Chip expression (p21high). Using this transgenic mouse, we monitored, imaged, and eliminated p21high cells in vivo. We also applied this system to chemically induced weakness and found that the clearance of p21high cells improved doxorubicin (DOXO)-induced multi-organ toxicity in mice. By recognizing p21 transcriptional activation spatially and temporally, the p21-3MR mouse model can be a valuable and powerful tool for studying p21high cells to further understand senescence biology.
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Affiliation(s)
| | | | | | | | | | | | - Junhua Wu
- Department of Prosthodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
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Keller LE, Tait Wojno ED, Begum L, Fortier LA. T Helper 17-Like Regulatory T Cells in Equine Synovial Fluid Are Associated With Disease Severity of Naturally Occurring Posttraumatic Osteoarthritis. Am J Sports Med 2023; 51:1047-1058. [PMID: 36794851 PMCID: PMC10375548 DOI: 10.1177/03635465231153588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
BACKGROUND Infiltration of cluster of differentiation (CD) 3+ (CD3+) T cells into the synovium and synovial fluid occurs in most patients with posttraumatic osteoarthritis. During disease progression, proinflammatory T helper 17 cells and anti-inflammatory regulatory T cells infiltrate the joint in response to inflammation. This study aimed to characterize the dynamics of regulatory T and T helper 17 cell populations in synovial fluid from equine clinical patients with posttraumatic osteoarthritis to determine whether phenotype and function are associated with potential immunotherapeutic targets. HYPOTHESIS An imbalance of the ratio of regulatory T cells and T helper 17 cells would be associated with disease progression in posttraumatic osteoarthritis, suggesting opportunities for immunomodulatory therapy. STUDY DESIGN Descriptive laboratory study. METHODS Synovial fluid was aspirated from the joints of equine clinical patients undergoing arthroscopic surgery for posttraumatic osteoarthritis resulting from intra-articular fragmentation. Joints were classified as having mild or moderate posttraumatic osteoarthritis. Synovial fluid was also obtained from nonoperated horses with normal cartilage. Peripheral blood was obtained from horses with normal cartilage and those with mild and moderate posttraumatic osteoarthritis. Synovial fluid and peripheral blood cells were analyzed by flow cytometry, and native synovial fluid was analyzed by enzyme-linked immunosorbent assay. RESULTS CD3+ T cells represented 81% of lymphocytes in synovial fluid, which increased in animals with moderate posttraumatic osteoarthritis to 88.3% (P = .02). CD14+ macrophages were doubled in those with moderate posttraumatic osteoarthritis compared with mild posttraumatic osteoarthritis and controls (P < .001). Less than 5% of CD3+ T cells found within the joint were forkhead box P3 protein+ (Foxp3+) regulatory T cells, but a 4- to 8-times higher percentage of nonoperated and mild posttraumatic osteoarthritis joint regulatory T cells secreted interleukin (IL)-10 than peripheral blood Tregs (P < .005). T regulatory-1 cells that secreted IL-10 but did not express Foxp3 accounted for approximately 5% of CD3+ T cells in all joints. T helper 17 cells and Th17-like regulatory T cells were increased in those with moderate posttraumatic osteoarthritis (P < .0001) compared with mild and nonoperated patients. IL-10, IL-17A, IL-6, chemokine (C-C motif) ligand (CCL) 2 (CCL2), and CCL5 concentrations detected by enzyme-linked immunosorbent assay in synovial fluid were not different between groups. CONCLUSIONS An imbalance of the ratio of regulatory T cells and T helper 17 cells and an increase in T helper 17 cell-like regulatory T cells in synovial fluid from joints with more severe disease provide novel insights into immunological mechanisms that are associated with posttraumatic osteoarthritis progression and pathogenesis. CLINICAL RELEVANCE Early and targeted use of immunotherapeutics in the mitigation of posttraumatic osteoarthritis may improve patient clinical outcomes.
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Affiliation(s)
- Laura E Keller
- Cornell University, College of Veterinary Medicine, Department of Clinical Sciences, Ithaca, New York, USA
| | - Elia D Tait Wojno
- University of Washington, Department of Immunology, Seattle, Washington, USA
| | - Laila Begum
- Cornell University, College of Veterinary Medicine, Department of Clinical Sciences, Ithaca, New York, USA
| | - Lisa A Fortier
- Cornell University, College of Veterinary Medicine, Department of Clinical Sciences, Ithaca, New York, USA
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60
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Okamoto K, Takayanagi H. Effect of T cells on bone. Bone 2023; 168:116675. [PMID: 36638904 DOI: 10.1016/j.bone.2023.116675] [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: 12/01/2022] [Revised: 01/01/2023] [Accepted: 01/05/2023] [Indexed: 01/12/2023]
Abstract
Bone and immune systems mutually influence each other by sharing a variety of regulatory molecules and the tissue microenvironment. The interdisciplinary research field "osteoimmunology" has illuminated the complex and dynamic interactions between the two systems in the maintenance of tissue homeostasis as well as in the development of immune and skeletal disorders. T cells play a central role in the immune response by secreting various immune factors and stimulating other immune cells and structural cells such as fibroblasts and epithelial cells, thereby contributing to pathogen elimination and pathogenesis of immune diseases. The finding on regulation of osteoclastic bone resorption by activated CD4+ T cells in rheumatoid arthritis was one of the driving forces for the development of osteoimmunology. With advances in research on helper T cell subsets and rare lymphoid cells such as γδ T cells in the immunology field, it is becoming clear that various types of T cells exert multiple effects on bone metabolism depending on immune context. Understanding the diverse effects of T cells on bone is essential for deciphering the osteoimmune regulatory network in various biological settings.
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Affiliation(s)
- Kazuo Okamoto
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Ji ML, Li Z, Hu XY, Zhang WT, Zhang HX, Lu J. Dynamic chromatin accessibility tuning by the long noncoding RNA ELDR accelerates chondrocyte senescence and osteoarthritis. Am J Hum Genet 2023; 110:606-624. [PMID: 36868238 PMCID: PMC10119164 DOI: 10.1016/j.ajhg.2023.02.011] [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: 10/11/2022] [Accepted: 02/10/2023] [Indexed: 03/05/2023] Open
Abstract
Epigenetic reprogramming plays a critical role in chondrocyte senescence during osteoarthritis (OA) pathology, but the underlying molecular mechanisms remain to be elucidated. Here, using large-scale individual datasets and genetically engineered (Col2a1-CreERT2;Eldrflox/flox and Col2a1-CreERT2;ROSA26-LSL-Eldr+/+ knockin) mouse models, we show that a novel transcript of long noncoding RNA ELDR is essential for the development of chondrocyte senescence. ELDR is highly expressed in chondrocytes and cartilage tissues of OA. Mechanistically, exon 4 of ELDR physically mediates a complex consisting of hnRNPL and KAT6A to regulate histone modifications of the promoter region of IHH, thereby activating hedgehog signaling and promoting chondrocyte senescence. Therapeutically, GapmeR-mediated silencing of ELDR in the OA model substantially attenuates chondrocyte senescence and cartilage degradation. Clinically, ELDR knockdown in cartilage explants from OA-affected individuals decreased the expression of senescence markers and catabolic mediators. Taken together, these findings uncover an lncRNA-dependent epigenetic driver in chondrocyte senescence, highlighting that ELDR could be a promising therapeutic avenue for OA.
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Affiliation(s)
- Ming-Liang Ji
- The Center of Joint and Sports Medicine, Orthopedics Department, Zhongda Hospital, Southeast University, Nanjing, China.
| | - Zhuang Li
- The Center of Joint and Sports Medicine, Orthopedics Department, Zhongda Hospital, Southeast University, Nanjing, China
| | - Xin Yue Hu
- The Center of Joint and Sports Medicine, Orthopedics Department, Zhongda Hospital, Southeast University, Nanjing, China
| | - Wei Tuo Zhang
- The Center of Joint and Sports Medicine, Orthopedics Department, Zhongda Hospital, Southeast University, Nanjing, China
| | - Hai Xiang Zhang
- The Center of Joint and Sports Medicine, Orthopedics Department, Zhongda Hospital, Southeast University, Nanjing, China
| | - Jun Lu
- The Center of Joint and Sports Medicine, Orthopedics Department, Zhongda Hospital, Southeast University, Nanjing, China.
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Kouri VP, Olkkonen J, Nurmi K, Peled N, Ainola M, Mandelin J, Nordström DC, Eklund KK. IL-17A and TNF synergistically drive expression of proinflammatory mediators in synovial fibroblasts via IκBζ-dependent induction of ELF3. Rheumatology (Oxford) 2023; 62:872-885. [PMID: 35792833 PMCID: PMC9891425 DOI: 10.1093/rheumatology/keac385] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 06/20/2022] [Accepted: 06/25/2022] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE IL-17A and TNF act in synergy to induce proinflammatory mediators in synovial fibroblasts thus contributing to diseases associated with chronic arthritis. Many of these factors are regulated by transcription factor E74-like factor-3 (ELF3). Therefore, we sought to investigate ELF3 as a downstream target of IL-17A and TNF signalling and to characterize its role in the molecular mechanism of synergy between IL-17A and TNF. METHODS Regulation of ELF3 expression by IL-17A and TNF was studied in synovial fibroblasts of RA and OA patients and RA synovial explants. Signalling leading to ELF3 mRNA induction and the impact of ELF3 on the response to IL-17A and TNF were studied using siRNA, transient overexpression and signalling inhibitors in synovial fibroblasts and HEK293 cells. RESULTS ELF3 was marginally affected by IL-17A or TNF alone, but their combination resulted in high and sustained expression. ELF3 expression was regulated by the nuclear factor-κB (NF-κB) pathway and CCAAT/enhancer-binding protein β (C/EBPβ), but its induction required synthesis of the NF-κB co-factor IκB (inhibitor of NF-κB) ζ. siRNA-mediated depletion of ELF3 attenuated the induction of cytokines and matrix metalloproteinases by the combination of IL-17A and TNF. Overexpression of ELF3 or IκBζ showed synergistic effect with TNF in upregulating expression of chemokine (C-C motif) ligand 8 (CCL8), and depletion of ELF3 abrogated CCL8 mRNA induction by the combination of IκBζ overexpression and TNF. CONCLUSION Altogether, our results establish ELF3 as an important mediator of the synergistic effect of IL-17A and TNF in synovial fibroblasts. The findings provide novel information of the pathogenic mechanisms of IL-17A in chronic arthritis and implicate ELF3 as a potential therapeutic target.
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Affiliation(s)
- Vesa-Petteri Kouri
- Department of Medicine, University of Helsinki and Helsinki University Hospital.,Translational Immunology Research Program, Research Programs Unit, University of Helsinki.,Department of Clinical Chemistry, University of Helsinki and Helsinki University Hospital
| | - Juri Olkkonen
- Department of Medicine, University of Helsinki and Helsinki University Hospital.,Translational Immunology Research Program, Research Programs Unit, University of Helsinki
| | - Katariina Nurmi
- Department of Medicine, University of Helsinki and Helsinki University Hospital.,Translational Immunology Research Program, Research Programs Unit, University of Helsinki
| | - Nitai Peled
- Department of Medicine, University of Helsinki and Helsinki University Hospital.,Translational Immunology Research Program, Research Programs Unit, University of Helsinki
| | - Mari Ainola
- Department of Medicine, University of Helsinki and Helsinki University Hospital.,Translational Immunology Research Program, Research Programs Unit, University of Helsinki
| | - Jami Mandelin
- Department of Medicine, University of Helsinki and Helsinki University Hospital.,Translational Immunology Research Program, Research Programs Unit, University of Helsinki
| | - Dan C Nordström
- Department of Medicine, University of Helsinki and Helsinki University Hospital.,Translational Immunology Research Program, Research Programs Unit, University of Helsinki.,Department of Internal Medicine and Rehabilitation
| | - Kari K Eklund
- Department of Medicine, University of Helsinki and Helsinki University Hospital.,Translational Immunology Research Program, Research Programs Unit, University of Helsinki.,Inflammation Center, Division of Rheumatology, Helsinki University Hospital.,ORTON Orthopaedic Hospital of the Orton Foundation, Helsinki, Finland
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63
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IL-17A promotes endothelial cell senescence by up-regulating the expression of FTO through activating JNK signal pathway. Biogerontology 2023; 24:99-110. [PMID: 36463389 DOI: 10.1007/s10522-022-09999-2] [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: 07/29/2022] [Accepted: 10/31/2022] [Indexed: 12/04/2022]
Abstract
Endothelial aging is a sign of vascular aging that predisposes patients to vascular disease. We explored the effects of IL-17A on endothelial cell aging and determined the potential underlying mechanisms. In human umbilical vein endothelial cells, IL-17A promoted senescence, evidenced as increased positive staining of senescence-associated β-galactosidase, increased proportion of cells arrested at G0/G1 stage, and upregulated p21 and p16 expression. IL-17A increased the expression of the m6A methylase FTO. We then investigated the relationship between FTO and endothelial cell aging. After interfering with FTO expression by siRNA, we observed that FTO induced endothelial cell aging. An increase in the expression of p-Jun N-terminal kinases (JNK) increased after IL-17A treatment indicated, that the JNK signaling pathway affected FTO expression. Moreover, the addition of the JNK signaling pathway inhibitor SP600125 blocked the effect of IL-17A on FTO expression. In conclusion, our findings revealed that IL-17A can promote endothelial cell aging by activating the JNK signaling pathway and upregulating FTO expression. This discovery can help in the identification of new therapeutic targets against endothelial cell aging and related vascular complications.
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64
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Zhang Q, Sun C, Liu X, Zhu C, Ma C, Feng R. Mechanism of immune infiltration in synovial tissue of osteoarthritis: a gene expression-based study. J Orthop Surg Res 2023; 18:58. [PMID: 36681837 PMCID: PMC9862811 DOI: 10.1186/s13018-023-03541-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 01/13/2023] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Osteoarthritis is a chronic degenerative joint disease, and increasing evidences suggest that the pathogenic mechanism involves immune system and inflammation. AIMS The aim of current study was to uncover hub genes linked to immune infiltration in osteoarthritis synovial tissue using comprehensive bioinformatics analysis and experimental confirmation. METHODS Multiple microarray datasets (GSE55457, GSE55235, GSE12021 and GSE1919) for osteoarthritis in Gene Expression Omnibus database were downloaded for analysis. Differentially expressed genes (DEGs) were identified using Limma package in R software, and immune infiltration was evaluated by CIBERSORT algorithm. Then weighted gene co-expression network analysis (WGCNA) was performed to uncover immune infiltration-associated gene modules. Protein-protein interaction (PPI) network was constructed to select the hub genes, and the tissue distribution of these genes was analyzed using BioGPS database. Finally, the expression pattern of these genes was confirmed by RT-qPCR using clinical samples. RESULTS Totally 181 DEGs between osteoarthritis and normal control were screened. Macrophages, mast cells, memory CD4 T cells and B cells accounted for the majority of immune cell composition in synovial tissue. Osteoarthritis synovial showed high abundance of infiltrating resting mast cells, B cells memory and plasma cells. WGCNA screened 93 DEGs related to osteoarthritis immune infiltration. These genes were involved in TNF signaling pathway, IL-17 signaling pathway, response to steroid hormone, glucocorticoid and corticosteroid. Ten hub genes including MYC, JUN, DUSP1, NFKBIA, VEGFA, ATF3, IL-6, PTGS2, IL1B and SOCS3 were selected by using PPI network. Among them, four genes (MYC, JUN, DUSP1 and NFKBIA) specifically expressed in immune system were identified and clinical samples revealed consistent change of these four genes in synovial tissue retrieved from patients with osteoarthritis. CONCLUSION A 4-gene-based diagnostic model was developed, which had well predictive performance in osteoarthritis. MYC, JUN, DUSP1 and NFKBIA might be biomarkers and potential therapeutic targets in osteoarthritis.
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Affiliation(s)
- Qingyu Zhang
- grid.460018.b0000 0004 1769 9639Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Road Jing Wu Wei Qi, Jinan, 250021 Shandong China
| | - Chao Sun
- grid.460018.b0000 0004 1769 9639Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Road Jing Wu Wei Qi, Jinan, 250021 Shandong China
| | - Xuchang Liu
- grid.460018.b0000 0004 1769 9639Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Road Jing Wu Wei Qi, Jinan, 250021 Shandong China
| | - Chao Zhu
- grid.460018.b0000 0004 1769 9639Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Road Jing Wu Wei Qi, Jinan, 250021 Shandong China
| | - Chuncheng Ma
- grid.460018.b0000 0004 1769 9639Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Road Jing Wu Wei Qi, Jinan, 250021 Shandong China
| | - Rongjie Feng
- grid.460018.b0000 0004 1769 9639Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Road Jing Wu Wei Qi, Jinan, 250021 Shandong China
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65
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Inhibition of Klf10 Attenuates Oxidative Stress-Induced Senescence of Chondrocytes via Modulating Mitophagy. Molecules 2023; 28:molecules28030924. [PMID: 36770589 PMCID: PMC9921806 DOI: 10.3390/molecules28030924] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/24/2022] [Accepted: 01/03/2023] [Indexed: 01/18/2023] Open
Abstract
Osteoarthritis (OA) is the most prevalent degenerative joint disease in the elderly. Accumulation of evidence has suggested that chondrocyte senescence plays a significant role in OA development. Here, we show that Krüppel-like factor 10 (Klf10), also named TGFβ inducible early gene-1 (TIEG1), is involved in the pathology of chondrocyte senescence. Knocking down the Klf10 in chondrocytes attenuated the tert-butyl hydroperoxide (TBHP)-induced senescence, inhibited generation of reactive oxygen species (ROS), and maintained mitochondrial homeostasis by activating mitophagy. These findings suggested that knocking down Klf10 inhibited senescence-related changes in chondrocytes and improved cartilage homeostasis, indicating that Klf10 may be a therapeutic target for protecting cartilage against OA.
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66
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ATOH8 binds SMAD3 to induce cellular senescence and prevent Ras-driven malignant transformation. Proc Natl Acad Sci U S A 2023; 120:e2208927120. [PMID: 36626550 PMCID: PMC9934021 DOI: 10.1073/pnas.2208927120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The process of oncogene-induced senescence (OIS) and the conversion between OIS and malignant transformation during carcinogenesis is poorly understood. Here, we show that following overactivation of oncogene Ras in lung epithelial cells, high-level transforming growth factor β1 (TGF-β1)-activated SMAD3, but not SMAD2 or SMAD4, plays a determinant role in inducing cellular senescence independent of the p53/p16/p15 senescence pathways. Importantly, SMAD3 binds a potential tumor suppressor ATOH8 to form a transcriptional complex that directly represses a series of cell cycle-promoting genes and consequently causes senescence in lung epithelial cells. Interestingly, the prosenescent SMAD3 converts to being oncogenic and essentially facilitates oncogenic Ras-driven malignant transformation. Furthermore, depleting Atoh8 rapidly accelerates oncogenic Ras-driven lung tumorigenesis, and lung cancers driven by mutant Ras and Atoh8 loss, but not by mutant Ras only, are sensitive to treatment of a specific SMAD3 inhibitor. Moreover, hypermethylation of the ATOH8 gene can be found in approximately 12% of clinical lung cancer cases. Together, our findings demonstrate not only epithelial cellular senescence directed by a potential tumor suppressor-controlled transcriptional program but also an important interplay between the prosenescent and transforming effects of TGF-β/SMAD3, potentially laying a foundation for developing early detection and anticancer strategies.
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67
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Tian Z, Khan AI, Rehman AU, Deng T, Ma C, Wang L. Virulence factors and mechanisms of paediatric pneumonia caused by Enterococcus faecalis. Gut Pathog 2023; 15:2. [PMID: 36624474 PMCID: PMC9830894 DOI: 10.1186/s13099-022-00522-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/09/2022] [Indexed: 01/11/2023] Open
Abstract
Paediatric pneumonia is a respiratory infection that affects infants and young children under the age of 3. This disease is the leading cause of infant and child mortality in developing countries because of the weak immune system of young children. The difficulty and length of time required to identify the pathogen and causative agent are the main reasons for this high mortality rate. In addition, the identification of certain causative agents is particularly important for the treatment of paediatric pneumonia. In this study, we explored the possible mechanisms by which pathogenic Enterococcus faecalis induced pneumonia in vivo. The potential virulence factors of bacteria isolated from the intestines of paediatric pneumonia patients were determined. Taken together, the results suggested that lysophosphatidic acid (LTA) from pathogenic E. faecalis decreases the expression of platelet-activating factor receptor (PAFR), which in turn disrupts the function of intestinal tight junctions (Occ and Ccldn1), leading to the entry of LE-LTA into the bloodstream because of the disruption of the intestinal barrier. Although LTA can enter circulation, it cannot directly infiltrate the lungs, which indicates that lung inflammation in mice is not caused by the direct entry of LE-LTA into the lungs. We further found that LTA activates immune cells, such as CD8 + T cells and type 2 innate lymphocytes, in vivo. Interleukin-6 and interleukin-17 can produce large amounts of inflammatory factors and thus promote the development of pneumonia. In conclusion, our findings demonstrate that the LTA of pathogenic E. faecalis in the intestine is a virulence factor that can cause paediatric pneumonia. This study found that intestinal bacterial virulence factors can induce immune responses in the lungs and blood. These findings could provide further insight into the mechanism of infectious diseases in the lung that are caused by bacteria in the intestine.
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Affiliation(s)
- Zhiying Tian
- Laboratory of Biochemistry and Molecular Biology, Department of Biotechnology, College of Basic Medicine, Dalian Medical University, Dalian, China
| | - Asif Iqbal Khan
- Laboratory of Biochemistry and Molecular Biology, Department of Biotechnology, College of Basic Medicine, Dalian Medical University, Dalian, China
| | - Ata Ur Rehman
- Laboratory of Biochemistry and Molecular Biology, Department of Biotechnology, College of Basic Medicine, Dalian Medical University, Dalian, China
| | - Ting Deng
- Laboratory of Biochemistry and Molecular Biology, Department of Biotechnology, College of Basic Medicine, Dalian Medical University, Dalian, China
| | - Chao Ma
- Laboratory of Biochemistry and Molecular Biology, Department of Biotechnology, College of Basic Medicine, Dalian Medical University, Dalian, China
| | - Liang Wang
- National Joint Engineering Laboratory, Regenerative Medicine Centre, Stem Cell Clinical Research Centre, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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68
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Ju G, Zeng K, Lu L, Diao H, Wang H, Li X, Zhou T. Identification and validation of the cellular senescence-related molecular subtypes of triple negative breast cancer via integrating bulk and single-cell RNA sequencing data. Am J Cancer Res 2023; 13:569-588. [PMID: 36895975 PMCID: PMC9989623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 01/30/2023] [Indexed: 03/11/2023] Open
Abstract
Patients with triple-negative breast cancer (TNBC) reportedly benefit from immune checkpoint blockade (ICB) therapy. However, the subtype-specific vulnerabilities of ICB in TNBC remain unclear. As the complex interplay between cellular senescence and anti-tumor immunity has been previously discussed, we aimed to identify markers related to cellular senescence that may serve as potential predictors of response to ICB in TNBC. We used three transcriptomic datasets derived from ICB-treated breast cancer samples at both scRNA-seq and bulk-RNA-seq levels to define the subtype-specific vulnerabilities of ICB in TNBC. Differences in the molecular features and immune cell infiltration among the different TNBC subtypes were further explored using two scRNA-seq, three bulk-RNA-seq, and two proteomic datasets. 18 TNBC samples were collected and utilized to verify the association between gene expression and immune cell infiltration by multiplex immunohistochemistry (mIHC). A specific type of cellular senescence was found to be significantly associated with response to ICB in TNBC. We employed the expression of four senescence-related genes, namely CDKN2A, CXCL10, CCND1, and IGF1R, to define a distinct senescence-related classifier using the non-negative matrix factorization approach. Two clusters were identified, namely the senescence-enriching cluster (C1; CDKN2A high CXCL10 high CCND1 low IGF1R low) and proliferating-enriching cluster (C2; CDKN2A low CXCL10 low CCND1 high IGF1R high). Our results indicated that the C1 cluster responds better to ICB and behaves with higher CD8+ T cell infiltration than the C2 cluster. Altogether, in this study, we developed a robust cellular senescence-related classifier of TNBC based on the expression of CDKN2A, CXCL10, CCND1, and IGF1R. This classifier act as a potential predictor of clinical outcomes and response to ICB.
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Affiliation(s)
- Gaoda Ju
- Department of Medical Oncology, Key Laboratory of Carcinogenesis & Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute Beijing 100142, China
| | - Kai Zeng
- Department of Thyroid Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University Shenzhen 518000, Guangdong, China
| | - Linlin Lu
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Soochow University Suzhou 215000, Jiangsu, China
| | - Han Diao
- Department of Pathology, Affiliated Hospital of Jining Medical University Jining 272000, Shandong, China
| | - Hao Wang
- Yancheng TCM Hospital, Nanjing University of Chinese Medicine Yancheng 224002, Jiangsu, China
| | - Xiaomin Li
- Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai, China
| | - Tianhao Zhou
- Department of Medical Oncology, Shanghai First People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai 200080, China
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Hu S, Shen C, Yao X, Zou Y, Wang T, Sun X, Nie M. m6A regulator-mediated methylation modification patterns and immune microenvironment infiltration characterization in osteoarthritis. BMC Med Genomics 2022; 15:273. [PMID: 36585683 PMCID: PMC9805027 DOI: 10.1186/s12920-022-01429-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/28/2022] [Indexed: 01/01/2023] Open
Abstract
Osteoarthritis (OA) is a common disease in orthopedics. RNA N6-methyladenosine (m6A) exerts an essential effect in a variety of biological processes in the eukaryotes. In this study, we determined the effect of m6A regulators in the OA along with performing the subtype classification. Differential analysis of OA and normal samples in the database of Gene Expression Omnibus identified 9 significantly differentially expressed m6A regulators. These regulators were monitored by a random forest algorithm so as to evaluate the risk of developing OA disease. On the basis of these 9 moderators, a nomogram was established. The results of decision curve analysis suggested that the patients could benefit from a nomogram model. The OA sample was classified as 2 m6A models through a consensus clustering algorithm in accordance with these 9 regulators. These 2 m6A patterns were then assessed with principal component analysis. We also determined the m6A scores for the 2 m6A patterns and their correlation with immune infiltration. The results indicated that type A had a higher m6A score than type B. Thus, we suggest that the m6A pattern may provide a new approach for diagnose and provide novel ideas for molecular targeted therapy of OA.
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Affiliation(s)
- Shidong Hu
- grid.412461.40000 0004 9334 6536Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 76 Linjiang Road, Yuzhong District, Chongqing, 400016 China
| | - Chen Shen
- grid.412461.40000 0004 9334 6536Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 76 Linjiang Road, Yuzhong District, Chongqing, 400016 China
| | - Xudong Yao
- grid.412461.40000 0004 9334 6536Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 76 Linjiang Road, Yuzhong District, Chongqing, 400016 China
| | - Yulong Zou
- grid.412461.40000 0004 9334 6536Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 76 Linjiang Road, Yuzhong District, Chongqing, 400016 China
| | - Ting Wang
- grid.412461.40000 0004 9334 6536Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 76 Linjiang Road, Yuzhong District, Chongqing, 400016 China
| | - Xianding Sun
- grid.412461.40000 0004 9334 6536Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 76 Linjiang Road, Yuzhong District, Chongqing, 400016 China
| | - Mao Nie
- grid.412461.40000 0004 9334 6536Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 76 Linjiang Road, Yuzhong District, Chongqing, 400016 China
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Sirt6 attenuates chondrocyte senescence and osteoarthritis progression. Nat Commun 2022; 13:7658. [PMID: 36496445 PMCID: PMC9741608 DOI: 10.1038/s41467-022-35424-w] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022] Open
Abstract
Sirt6 has been implicated as a key regulator in aging-related diseases, including osteoarthritis. However, its functional role and molecular mechanism in chondrocyte senescence and osteoarthritis pathophysiology remain largely undefined. Here we show that Sirt6 deficiency exaggerates chondrocyte senescence and osteoarthritis progression, whereas intra-articular injection of adenovirus-Sirt6 markedly attenuates surgical destabilization of medial meniscus-induced osteoarthritis. Mechanistically, Sirt6 can directly interact with STAT5 and deacetylate STAT5, thus inhibiting the IL-15/JAK3-induced STAT5 translocation from cytoplasm to nucleus, which inactivates IL-15/JAK3/STAT5 signaling. Mass spectrometry revealed that Sirt6 deacetylated conserved lysine 163 on STAT5. Mutation of lysine 163 to arginine in STAT5 abolished the regulatory effect of Sirt6. In vivo, specific ablation of Sirt6 in chondrocytes exacerbated osteoarthritis. Pharmacological activation of Sirt6 substantially alleviated chondrocyte senescence. Taken together, Sirt6 attenuates chondrocyte senescence by inhibiting IL-15/JAK3/STAT5 signaling. Targeting Sirt6 represents a promising new approach for osteoarthritis.
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71
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Wen M, Ying Y, Xiao X, Arnold PR, Wang G, Chu X, Ghobrial RM, Li XC. Ox40-Cre-mediated deletion of BRD4 reveals an unexpected phenotype of hair follicle stem cells in alopecia. JCI Insight 2022; 7:e164534. [PMID: 36256455 PMCID: PMC9746908 DOI: 10.1172/jci.insight.164534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/13/2022] [Indexed: 01/12/2023] Open
Abstract
BRD4 is a bromodomain extraterminal domain family member and functions primarily as a chromatin reader regulating genes involved in cell-fate decisions. Here, we bred Brd4fl/fl Ox40-Cre mice in which Brd4 was conditionally deleted in OX40-expressing cells to examine the role of BRD4 in regulating immune responses. We found that the Brd4fl/fl Ox40-Cre mice developed profound alopecia and dermatitis, while other organs and tissues were not affected. Surprisingly, lineage-tracing experiments using the Rosa26fl/fl-Yfp mice identified a subset of hair follicle stem cells (HFSCs) that constitutively express OX40, and deletion of Brd4 specifically in such HFSCs resulted in cell death and a complete loss of skin hair growth. We also found that death of HFSCs triggered massive activation of the intradermal γδ T cells, which induced epidermal hyperplasia and dermatitis by producing the inflammatory cytokine IL-17. Interestingly, deletion of Brd4 in Foxp3+ Tregs, which also constitutively express OX40, compromised their suppressive functions, and this, in turn, contributed to the enhanced activation of γδ T cells, as well as the severity of dermatitis and hair follicle destruction. Thus, our data demonstrate an unexpected role of BRD4 in regulating skin follicle stem cells and skin inflammation.
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Affiliation(s)
- Mou Wen
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Hospital, Texas Medical Center, Houston, Texas, USA
- Department of Thoracic Surgery, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Yuanlin Ying
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Hospital, Texas Medical Center, Houston, Texas, USA
| | - Xiang Xiao
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Hospital, Texas Medical Center, Houston, Texas, USA
| | - Preston R. Arnold
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Hospital, Texas Medical Center, Houston, Texas, USA
| | - Guangchuan Wang
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Hospital, Texas Medical Center, Houston, Texas, USA
| | - Xiufeng Chu
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Hospital, Texas Medical Center, Houston, Texas, USA
| | - Rafik M. Ghobrial
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Hospital, Texas Medical Center, Houston, Texas, USA
- Department of Surgery, Weill Cornell Medical College of Cornell University, New York, New York, USA
| | - Xian C. Li
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Hospital, Texas Medical Center, Houston, Texas, USA
- Department of Surgery, Weill Cornell Medical College of Cornell University, New York, New York, USA
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72
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Liu Y, Zhang Z, Li T, Xu H, Zhang H. Senescence in osteoarthritis: from mechanism to potential treatment. Arthritis Res Ther 2022; 24:174. [PMID: 35869508 PMCID: PMC9306208 DOI: 10.1186/s13075-022-02859-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 07/05/2022] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is an age-related cartilage degenerative disease, and chondrocyte senescence has been extensively studied in recent years. Increased numbers of senescent chondrocytes are found in OA cartilage. Selective clearance of senescent chondrocytes in a post-traumatic osteoarthritis (PTOA) mouse model ameliorated OA development, while intraarticular injection of senescent cells induced mouse OA. However, the means and extent to which senescence affects OA remain unclear. Here, we review the latent mechanism of senescence in OA and propose potential therapeutic methods to target OA-related senescence, with an emphasis on immunotherapies. Natural killer (NK) cells participate in the elimination of senescent cells in multiple organs. A relatively comprehensive discussion is presented in that section. Risk factors for OA are ageing, obesity, metabolic disorders and mechanical overload. Determining the relationship between known risk factors and senescence will help elucidate OA pathogenesis and identify optimal treatments.
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73
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Zhang J, Wang AX, Wu Y, Zhang S. IL-1 receptor antagonist (IL-1RA) suppresses a hyper-IL-17 response-mediated bone loss in a murine experimental periodontitis. Arch Oral Biol 2022; 144:105555. [DOI: 10.1016/j.archoralbio.2022.105555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/23/2022] [Accepted: 09/24/2022] [Indexed: 11/02/2022]
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Vaamonde-García C, Capelo-Mera E, Flórez-Fernández N, Torres MD, Rivas-Murias B, Mejide-Faílde R, Blanco FJ, Domínguez H. In Vitro Study of the Therapeutic Potential of Brown Crude Fucoidans in Osteoarthritis Treatment. Int J Mol Sci 2022; 23:14236. [PMID: 36430716 PMCID: PMC9698873 DOI: 10.3390/ijms232214236] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
Osteoarthritis, one of the most common joint degenerative pathologies, still has no cure, and current treatments, such as nonsteroidal anti-inflammatory drugs, can cause serious adverse effects when taken for a long time. Brown seaweed crude fucoidans are used for the clinical treatment of several pathologies. In this study, the therapeutical potential of these biocompounds was analyzed in primary chondrocytes and the 260TT human chondrocyte cell line. Crude fucoidan from Undaria pinnatifida (Up) and Sargassum muticum (Sm) was obtained by different extraction techniques (microwave-assisted extraction, pressurized hot-water extraction, ultrasound-assisted extraction) and chemically and structurally characterized by Fourier transform infrared spectroscopy, high-performance size-exclusion chromatography, proton nuclear magnetic resonance, and scanning electron microscopy. Once cell viability was confirmed in chondrocytes treated with crude fucoidans, we evaluated their anti-inflammatory effects, observing a significant reduction in IL-6 production stimulated by IL-1β. Findings were confirmed by analysis of IL-6 and IL-8 gene expression, although only fucoidans from Up achieved a statistically significant reduction. Besides this, the antioxidant capacity of crude fucoidans was observed through the upregulation of Nrf-2 levels and the expression of its transcriptional target genes HO-1 and SOD-2, with compounds from Up again showing a more consistent effect. However, no evidence was found that crude fucoidans modulate senescence, as they failed to reduced β-galactosidase activity, cell proliferation, or IL-6 production in chondrocytes stimulated with etoposide. Thus, the findings of this research seem to indicate that the tested crude fucoidans are capable of partially alleviating OA-associated inflammation and oxidative stress, but fail to attenuate chondrocyte senescence.
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Affiliation(s)
- Carlos Vaamonde-García
- Grupo de Investigación de Reumatología y Salud (GIR-S), Departamento de Biología, Facultad de Ciencias, CICA-Centro Interdisciplinar de Química y Biología, INIBIC-Sergas, Universidade da Coruña, Campus da Zapateira, 15011 A Coruña, Spain
| | - Emma Capelo-Mera
- Grupo de Investigación de Reumatología y Salud (GIR-S), Departamento de Biología, Facultad de Ciencias, CICA-Centro Interdisciplinar de Química y Biología, INIBIC-Sergas, Universidade da Coruña, Campus da Zapateira, 15011 A Coruña, Spain
| | - Noelia Flórez-Fernández
- Grupo de Biomasa y Desarrollo Sostenible (EQ2), Departamento de Ingeniería Química, Facultad de Ciencias, CINBIO, Universidade de Vigo, 32004 Ourense, Spain
| | - María Dolores Torres
- Grupo de Biomasa y Desarrollo Sostenible (EQ2), Departamento de Ingeniería Química, Facultad de Ciencias, CINBIO, Universidade de Vigo, 32004 Ourense, Spain
| | | | - Rosa Mejide-Faílde
- Grupo de Terapia Celular y Medicina Regenerativa, Universidade da Coruña, CICA-Centro Interdisciplinar de Química y Biología, Complexo Hospitalario Universitario A Coruña, Campus Oza, 15006 A Coruña, Spain
| | - Francisco J. Blanco
- Grupo de Investigación de Reumatología y Salud (GIR-S), Departamento de Fisioterapia, Medicina y Ciencias Biomédicas, Facultad de Fisioterapia, CICA-Centro Interdisciplinar de Química y Biología, INIBIC-Sergas, Universidade da Coruña, Campus de Oza, 15006 A Coruña, Spain
| | - Herminia Domínguez
- Grupo de Biomasa y Desarrollo Sostenible (EQ2), Departamento de Ingeniería Química, Facultad de Ciencias, CINBIO, Universidade de Vigo, 32004 Ourense, Spain
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75
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Jin S, Wang Y, Qie C, Yang L, Wu Y, Zhang T, Di J, Liu J. Single-Cell RNA Sequencing Reveals the Immune Cell Profiling in IMQ Induced Psoriasis-Like Model. J Inflamm Res 2022; 15:5999-6012. [PMID: 36330167 PMCID: PMC9626250 DOI: 10.2147/jir.s379349] [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: 07/02/2022] [Accepted: 10/20/2022] [Indexed: 01/24/2023] Open
Abstract
PURPOSE Psoriasis is a chronic systemic inflammatory skin disease with a high recurrence rate. The immune response plays an important role in psoriasis. However, the subsets of immune cells involved in inflammation in psoriatic mice have not been fully studied. This study showed the immune environment characteristics of psoriasis in mice. METHODS We used single-cell RNA sequencing (10× Genomics) as an unbiased analytical strategy to investigate the heterogeneity of skin immune cells in imiquimod-induced psoriasis mice systematically. RESULTS We identified 10 major clusters and their marker genes among 14,439 cells. The proportions of macrophages, NK/T cells, conventional dendritic cells (cDCs) and plasmacytoid dendritic cells (pDCs) were increased in psoriatic mice. Macrophages were the largest group and were further divided into 7 subgroups, and all macrophage clusters were increased in psoriatic mice. Differentially expressed genes in control versus psoriatic mice skin lesions showed that Fcgr4, Saa3 and Acp5 in macrophages, Acp5, Fcgr4 and Ms4a6d in NK/T cells, Saa3 in cDCs, and Ifitm1 in pDCs were upregulated in psoriasis mice. Kyoto Encyclopedia of Genes and Genomes (KEGG) signaling pathway enrichment analysis emphasized the role of oxidative phosphorylation signals and antigen processing and presentation signals in murine psoriasis-like models. CONCLUSION Our study reveals the immune environment characteristics of the commonly used IMQ induced psoriasis-like models and provides a systematic insight into the immune response of mice with psoriasis, which is conducive to comparing the similarities and differences between the mouse model and human psoriasis.
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Affiliation(s)
- Shasha Jin
- New Drug Screening Center, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China
| | - Yixin Wang
- New Drug Screening Center, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China
| | - Chenxin Qie
- New Drug Screening Center, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China
| | - Lu Yang
- New Drug Screening Center, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China
| | - Yinhao Wu
- New Drug Screening Center, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China
| | - Tingting Zhang
- New Drug Screening Center, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China
| | - Jianwen Di
- New Drug Screening Center, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China
| | - Jun Liu
- New Drug Screening Center, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China,Correspondence: Jun Liu, New Drug Screening Center, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China, Tel +86-25-83271043, Fax +86-25-83271142, Email
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Tang H, Zhu W, Cao L, Zhang J, Li J, Ma D, Guo C. miR-210-3p protects against osteoarthritis through inhibiting subchondral angiogenesis by targeting the expression of TGFBR1 and ID4. Front Immunol 2022; 13:982278. [PMID: 36263050 PMCID: PMC9575949 DOI: 10.3389/fimmu.2022.982278] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/15/2022] [Indexed: 11/13/2022] Open
Abstract
Excessive subchondral angiogenesis is a key pathological feature of osteoarthritis (OA), as it alters the balance of subchondral bone remodeling and causes progressive cartilage degradation. We previously found that miR-210-3p correlates negatively with angiogenesis, though the specific mechanism of miR-210-3p-related angiogenesis in subchondral bone during OA progression remains unclear. This study was conducted to identify the miR-210-3p-modulating subchondral angiogenesis mechanism in OA and investigate its therapeutic effect. We found that miR-210-3p expression correlated negatively with subchondral endomucin positive (Emcn+) vasculature in the knee joints of OA mice. miR-210-3p overexpression regulated the angiogenic ability of endothelial cells (ECs) under hypoxic conditions in vitro. Mechanistically, miR-210-3p inhibited ECs angiogenesis by suppressing transforming growth factor beta receptor 1 (TGFBR1) mRNA translation and degrading DNA-binding inhibitor 4 (ID4) mRNA. In addition, TGFBR1 downregulated the expression of ID4. Reduced ID4 levels led to a negative feedback regulation of TGFBR1, enhancing the inhibitory effect of miR-210-3p on angiogenesis. In OA mice, miR-210-3p overexpression in ECs via adeno-associated virus (AAV) alleviated cartilage degradation, suppressed the type 17 immune response and relieved symptoms by attenuating subchondral Emcn+ vasculature and subchondral bone remodeling. In conclusion, we identified a miR-210-3p/TGFBR1/ID4 axis in subchondral ECs that modulates OA progression via subchondral angiogenesis, representing a potential OA therapy target.
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Affiliation(s)
- Han Tang
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wenrun Zhu
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Lu Cao
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jin Zhang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Juncheng Li
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Duan Ma
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
- *Correspondence: Changan Guo, ; Duan Ma,
| | - Changan Guo
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- *Correspondence: Changan Guo, ; Duan Ma,
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Abstract
Heart regenerative medicine has been gradually evolving from a view of the heart as a nonregenerative organ with terminally differentiated cardiac muscle cells. Understanding the biology of the heart during homeostasis and in response to injuries has led to the realization that cellular communication between all cardiac cell types holds great promise for treatments. Indeed, recent studies highlight new disease-reversion concepts in addition to cardiomyocyte renewal, such as matrix- and vascular-targeted therapies, and immunotherapy with a focus on inflammation and fibrosis. In this review, we will discuss the cross-talk within the cardiac microenvironment and how specific therapies aim to target the hostile cardiac milieu under pathological conditions.
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Affiliation(s)
- Eldad Tzahor
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Stefanie Dimmeler
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University Frankfurt, 60594 Frankfurt, Germany.,Cardiopulmonary Institute, Goethe University Frankfurt, Frankfurt, Germany.,German Center for Cardiovascular Research, RheinMain, Frankfurt, Germany
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Cao M, Ong MTY, Yung PSH, Tuan RS, Jiang Y. Role of synovial lymphatic function in osteoarthritis. Osteoarthritis Cartilage 2022; 30:1186-1197. [PMID: 35487439 DOI: 10.1016/j.joca.2022.04.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 04/01/2022] [Accepted: 04/20/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Osteoarthritis (OA) affects the entire joint, initially with a low degree of inflammation. Synovitis is correlated with the severity of OA clinical symptoms and cartilage degradation. The synovial lymphatic system (SLS) plays a prominent role in clearing macromolecules within the joint, including the pro-inflammatory cytokines in arthritic status. Scattered evidence shows that impaired SLS drainage function leads to the accumulation of inflammatory factors in the joint and aggravates the progression of OA, and the role of SLS function in OA is less studied. DESIGN This review summarizes the current understanding of synovial lymphatic function in OA progression and potential regulatory pathways and aims to provide a framework of knowledge for the development of OA treatments targeting lymphatic structure and functions. RESULTS SLS locates in the subintima layer of the synovium and consists of lymphatic capillaries and lymphatic collecting vessels. Vascular endothelial growth factor C (VEGF-C) is the most critical regulating factor of lymphatic endothelial cells (LECs) and SLS. Nitric oxide production-induced impairment of lymphatic muscle cells (LMCs) and contractile function may attribute to drainage dysfunction. Preclinical evidence suggests that promoting lymphatic drainage may help restore intra-articular homeostasis to attenuate the progression of OA. CONCLUSION SLS is actively involved in the homeostatic maintenance of the joint. Understanding the drainage function of the SLS at different stages of OA development is essential for further design of therapies targeting the function of these vessels.
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Affiliation(s)
- M Cao
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - M T Y Ong
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - P S H Yung
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Institute for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - R S Tuan
- Institute for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Y Jiang
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Institute for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
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79
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L'Hôte V, Mann C, Thuret JY. From the divergence of senescent cell fates to mechanisms and selectivity of senolytic drugs. Open Biol 2022; 12:220171. [PMID: 36128715 PMCID: PMC9490338 DOI: 10.1098/rsob.220171] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Senescence is a cellular stress response that involves prolonged cell survival, a quasi-irreversible proliferative arrest and a modification of the transcriptome that sometimes includes inflammatory gene expression. Senescent cells are resistant to apoptosis, and if not eliminated by the immune system they may accumulate and lead to chronic inflammation and tissue dysfunction. Senolytics are drugs that selectively induce cell death in senescent cells, but not in proliferative or quiescent cells, and they have proved a viable therapeutic approach in multiple mouse models of pathologies in which senescence is implicated. As the catalogue of senolytic compounds is expanding, novel survival strategies of senescent cells are uncovered, and variations in sensitivity to senolysis between different types of senescent cells emerge. We propose herein a mechanistic classification of senolytic drugs, based on the level at which they target senescent cells: directly disrupting BH3 protein networks that are reorganized upon senescence induction; downregulating survival-associated pathways essential to senescent cells; or modulating homeostatic processes whose regulation is challenged in senescence. With this approach, we highlight the important diversity of senescent cells in terms of physiology and pathways of apoptosis suppression, and we describe possible avenues for the development of more selective senolytics.
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Affiliation(s)
- Valentin L'Hôte
- CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Gif-sur-Yvette cedex, France
| | - Carl Mann
- CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Gif-sur-Yvette cedex, France
| | - Jean-Yves Thuret
- CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Gif-sur-Yvette cedex, France
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80
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Torrance BL, Haynes L. Cellular senescence is a key mediator of lung aging and susceptibility to infection. Front Immunol 2022; 13:1006710. [PMID: 36119079 PMCID: PMC9473698 DOI: 10.3389/fimmu.2022.1006710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/16/2022] [Indexed: 12/05/2022] Open
Abstract
Aging results in systemic changes that leave older adults at much higher risk for adverse outcomes following respiratory infections. Much work has been done over the years to characterize and describe the varied changes that occur with aging from the molecular/cellular up to the organismal level. In recent years, the systemic accumulation of senescent cells has emerged as a key mediator of many age-related declines and diseases of aging. Many of these age-related changes can impair the normal function of the respiratory system and its capability to respond appropriately to potential pathogens that are encountered daily. In this review, we aim to establish the effects of cellular senescence on the disruption of normal lung function with aging and describe how these effects compound to leave an aged respiratory system at great risk when exposed to a pathogen. We will also discuss the role cellular senescence may play in the inability of most vaccines to confer protection against respiratory infections when administered to older adults. We posit that cellular senescence may be the point of convergence of many age-related immunological declines. Enhanced investigation into this area could provide much needed insight to understand the aging immune system and how to effectively ameliorate responses to pathogens that continue to disproportionately harm this vulnerable population.
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Affiliation(s)
| | - Laura Haynes
- UConn Center on Aging and Department of Immunology, School of Medicine, University of Connecticut, Farmington, CT, United States
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81
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Mao R, Wang Y, Wang F, Zhou L, Yan S, Lu S, Shi W, Zhang Y. Identification of Four Biomarkers of Human Skin Aging by Comprehensive Single Cell Transcriptome, Transcriptome, and Proteomics. Front Genet 2022; 13:881051. [PMID: 36081986 PMCID: PMC9445490 DOI: 10.3389/fgene.2022.881051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 06/13/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Aging is characterized by the gradual loss of physiological integrity, resulting in impaired function and easier death. This deterioration is a major risk factor for major human pathological diseases, including cancer, diabetes, cardiovascular disease and neurodegenerative diseases. It is very important to find biomarkers that can prevent aging.Methods: Q-Exactive-MS was used for proteomic detection of young and senescence fibroblast. The key senescence-related molecules (SRMs) were identified by integrating transcriptome and proteomics from aging tissue/cells, and the correlation between these differentially expressed genes and well-known aging-related pathways. Next, we validated the expression of these molecules using qPCR, and explored the correlation between them and immune infiltrating cells. Finally, the enriched pathways of the genes significantly related to the four differential genes were identified using the single cell transcriptome.Results: we first combined proteomics and transcriptome to identified four SRMs. Data sets including GSE63577, GSE64553, GSE18876, GSE85358, and qPCR confirmed that ETF1, PLBD2, ASAH1, and MOXD1 were identified as SRMs. Then the correlation between SRMs and aging-related pathways was excavated and verified. Next, we verified the expression of SRMs at the tissue level and qPCR, and explored the correlation between them and immune infiltrating cells. Finally, at the single-cell transcriptome level, we verified their expression and explored the possible pathway by which they lead to aging. Briefly, ETF1 may affect the changes of inflammatory factors such as IL-17, IL-6, and NFKB1 by indirectly regulating the enrichment and differentiation of immune cells. MOXD1 may regulate senescence by affecting the WNT pathway and changing the cell cycle. ASAH1 may affect development and regulate the phenotype of aging by affecting cell cycle-related genes.Conclusion: In general, based on the analysis of proteomics and transcriptome, we identified four SRMs that may affect aging and speculated their possible mechanisms, which provides a new target for preventing aging, especially skin aging.
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Affiliation(s)
- Rui Mao
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Yunying Wang
- Department of Dermatology, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Fan Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Lei Zhou
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Sha Yan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Shanshan Lu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, China
- The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China
| | - Wei Shi
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Yiya Zhang, ; Wei Shi,
| | - Yiya Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Yiya Zhang, ; Wei Shi,
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Gil TH, Zheng H, Lee HG, Shin JW, Hwang SW, Jang KM, Jeon OH. Senolytic drugs relieve pain by reducing peripheral nociceptive signaling without modifying joint tissue damage in spontaneous osteoarthritis. Aging (Albany NY) 2022; 14:6006-6027. [PMID: 35951358 PMCID: PMC9417227 DOI: 10.18632/aging.204204] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 07/12/2022] [Indexed: 11/25/2022]
Abstract
Aging is a risk factor for the development of osteoarthritis (OA), a progressive joint disease leading to cartilage damage, pain, and loss of function. In a mouse model of OA, senolytic drugs to selectively clear senescent cells (SnCs) that accumulate with injury or aging yielded a chondroprotective effect; however, this therapeutic benefit was limited in aged mice. Due to inconsistency between cartilage destruction and pain-associated symptoms, we studied the therapeutic effect of senolytics on joint pain in spontaneous OA. We orally treated 21- and 22-month old mice with an ABT263 and Dasatinib and Quercetin (D+Q) drug combination. Selective elimination of the SnCs that accumulated in the articular cartilage and synovium by these two drugs did not alter cartilage degeneration and abnormal bone changes during spontaneous OA progression. Treatment reduced thermal and mechanical hyperalgesia associated with OA and peripheral sensitization through decreased expression of axon guidance proteins (nerve growth factor NGF/TrkA) and nociceptive neuron (calcitonin gene-related peptide, CGRP) projection to the synovium, subchondral bone marrow, and dorsal root ganglion, and knee joint angiogenesis. Selective removal of the SnCs from in vitro cultures of synovial cells from human OA patients also decreased expression of senescent markers, axonal growth-promoting factors, such as NGF, and angiogenesis markers. We suggest that systemic administration of ABT263 and D+Q is an exciting therapeutic approach to age-related OA pain.
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Affiliation(s)
- Tae-Hwan Gil
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Haiyan Zheng
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Republic of Korea.,Department of Physiology, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Hyo Gyeong Lee
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Ji-Won Shin
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Sun Wook Hwang
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Republic of Korea.,Department of Physiology, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Ki-Mo Jang
- Department of Orthopaedic Surgery, Anam Hospital, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Ok Hee Jeon
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Republic of Korea
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83
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Chaib S, Tchkonia T, Kirkland JL. Cellular senescence and senolytics: the path to the clinic. Nat Med 2022; 28:1556-1568. [PMID: 35953721 PMCID: PMC9599677 DOI: 10.1038/s41591-022-01923-y] [Citation(s) in RCA: 318] [Impact Index Per Article: 159.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/28/2022] [Indexed: 01/10/2023]
Abstract
Interlinked and fundamental aging processes appear to be a root-cause contributor to many disorders and diseases. One such process is cellular senescence, which entails a state of cell cycle arrest in response to damaging stimuli. Senescent cells can arise throughout the lifespan and, if persistent, can have deleterious effects on tissue function due to the many proteins they secrete. In preclinical models, interventions targeting those senescent cells that are persistent and cause tissue damage have been shown to delay, prevent or alleviate multiple disorders. In line with this, the discovery of small-molecule senolytic drugs that selectively clear senescent cells has led to promising strategies for preventing or treating multiple diseases and age-related conditions in humans. In this Review, we outline the rationale for senescent cells as a therapeutic target for disorders across the lifespan and discuss the most promising strategies-including recent and ongoing clinical trials-for translating small-molecule senolytics and other senescence-targeting interventions into clinical use.
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Affiliation(s)
- Selim Chaib
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Tamar Tchkonia
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - James L Kirkland
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA.
- Division of General Internal Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
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84
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Chin AF, Elisseeff JH. Senescent cells in tissue engineering. Curr Opin Biotechnol 2022; 76:102737. [PMID: 35660479 DOI: 10.1016/j.copbio.2022.102737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 04/15/2022] [Accepted: 04/25/2022] [Indexed: 11/03/2022]
Abstract
Tissue engineers have long worked to develop cells, biomaterial matrices, and signaling molecules designed to restore or promote the repair of lost or damaged tissue. Senescent cells (SnCs), that is, cells that have entered permanent cell-cycle arrest, exert powerful cell non-autonomous effects on their local environments. As such, SnCs influence cell fates and pathologies in adult tissue, including in settings where tissue engineers have directed their efforts. Here, we compare transient SnCs in tissue repair, contrasted with chronic SnCs in osteoarthritic pathology and the foreign-body response. Then, we discuss recent advances in strategies to control the presence and downstream effects of SnCs in tissues, such as immunomodulatory biomaterials, human trials of senolytic molecules, and senescent-cell-directed CAR-T therapy.
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Affiliation(s)
- Alexander F Chin
- Translational Tissue Engineering Center, Department of Biomedical Engineering and Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jennifer H Elisseeff
- Translational Tissue Engineering Center, Department of Biomedical Engineering and Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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85
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Cross-Tissue Analysis Using Machine Learning to Identify Novel Biomarkers for Knee Osteoarthritis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:9043300. [PMID: 35785145 PMCID: PMC9246600 DOI: 10.1155/2022/9043300] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 04/28/2022] [Accepted: 05/13/2022] [Indexed: 11/18/2022]
Abstract
Background Knee osteoarthritis (KOA) is a common degenerative joint disease. In this study, we aimed to identify new biomarkers of KOA to improve the accuracy of diagnosis and treatment. Methods GSE98918 and GSE51588 were downloaded from the Gene Expression Omnibus database as training sets, with a total of 74 samples. Gene differences were analyzed by Gene Ontology, Kyoto Encyclopedia of Genes and Genomes pathway, and Disease Ontology enrichment analyses for the differentially expressed genes (DEGs), and GSEA enrichment analysis was carried out for the training gene set. Through least absolute shrinkage and selection operator regression analysis, the support vector machine recursive feature elimination algorithm, and gene expression screening, the range of DEGs was further reduced. Immune infiltration analysis was carried out, and the prediction results of the combined biomarker logistic regression model were verified with GSE55457. Results In total, 84 DEGs were identified through differential gene expression analysis. The five biomarkers that were screened further showed significant differences in cartilage, subchondral bone, and synovial tissue. The diagnostic accuracy of the model synthesized using five biomarkers through logistic regression was better than that of a single biomarker and significantly better than that of a single clinical trait. Conclusions CX3CR1, SLC7A5, ARL4C, TLR7, and MTHFD2 might be used as novel biomarkers to improve the accuracy of KOA disease diagnosis, monitor disease progression, and improve the efficacy of clinical treatment.
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86
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Liu G, He G, Zhang J, Zhang Z, Wang L. Identification of SCRG1 as a Potential Therapeutic Target for Human Synovial Inflammation. Front Immunol 2022; 13:893301. [PMID: 35720295 PMCID: PMC9204521 DOI: 10.3389/fimmu.2022.893301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/26/2022] [Indexed: 01/15/2023] Open
Abstract
Synovial inflammation of joint tissue is the most important cause of tissue damage, joint destruction, and disability and is associated with higher morbidity or mortality. Therefore, this study aims to identify key genes in osteoarthritis synovitis tissue to increase our understanding of the underlying mechanisms of osteoarthritis and identify new therapeutic targets. Five GEO datasets with a total of 41 normal synovial membrane tissues and 45 osteoarthritis synovial membrane samples were used for analysis, and seven common differential genes were identified. The classification model constructed by LASSO analysis showed that six genes including CDKN1A, FOSB, STMN2, SLC2A3, TAC, and SCRG1 can be used as biomarkers of osteoarthritis, and the SCRG1 gene shows importance in osteoarthritis. Furthermore, drug database enrichment found that these six DEGs may be the drug targets of synovitis in osteoarthritis, and Valproic Acid CTD 00006977 may be a potential targeted therapeutic drug of SCRG1. Spearman correlation analysis was performed on the SCRG1 gene, and 27 genes with consistent expression were obtained. Functional analysis showed that 27 genes were mainly involved in metabolism, complement, antigen presentation, apoptosis, and regulation of immune pathways. The co-regulatory network of TFs-miRNA suggested that the SCRG1 gene may be regulated by hsa-miR-363-3p miRNA. In conclusion, SCRG1, as a diagnostic marker of osteoarthritis, co-regulates immune-related pathways through the interaction of related proteins, playing an important role in the occurrence and development of osteoarthritis, which may be a novel drug target.
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Affiliation(s)
- Guoqiang Liu
- Department of Orthopedics, Academy of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Guisong He
- Department of Orthopedics, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jie Zhang
- Department of Orthopedics, Academy of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Zhongmin Zhang
- Department of Orthopedics, Academy of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China.,Division of Spine Surgery, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Liang Wang
- Department of Orthopedics, Academy of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
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87
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Jiang N, Xing B, Peng R, Shang J, Wu B, Xiao P, Lin S, Xu X, Lu H. Inhibition of Cpt1a alleviates oxidative stress-induced chondrocyte senescence via regulating mitochondrial dysfunction and activating mitophagy. Mech Ageing Dev 2022; 205:111688. [PMID: 35728631 DOI: 10.1016/j.mad.2022.111688] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/08/2022] [Accepted: 06/15/2022] [Indexed: 11/24/2022]
Abstract
Osteoarthritis (OA) is an age-related chronic degenerative disease, and chondrocyte senescence has been established to play an important role in the pathological process. There is ample evidence to suggest that lipid metabolism plays an important role in the aging process. However, the effect of lipid metabolism on chondrocyte senescence and OA remains unclear. Accordingly, we constructed a TBHP-induced senescent chondrocytes model and a destabilization of the medial meniscus (DMM) mouse model. We found that lipid accumulation and fatty acid oxidation were enhanced in senescent chondrocytes. Interestingly, carnitine palmitoyltransferase 1A (Cpt1a), the rate-limiting enzyme for fatty acid oxidation, was highly expressed in senescent chondrocytes and murine knee cartilage tissue. Suppressing Cpt1a expression using siRNA or Etomoxir, an inhibitor of Cpt1a, could attenuate oxidative stress-induced premature senescence and OA phenotype of primary murine chondrocytes, decrease cellular ROS levels, restore mitochondrial function, and maintain mitochondrial homeostasis via activating mitophagy. In vivo, pharmacological inhibition of Cpt1a by Etomoxir attenuated cartilage destruction, relieved joint space narrowing and osteophyte formation in the DMM mouse model. Overall, these findings suggested that knockdown of Cpt1a alleviated chondrocyte senescence by regulating mitochondrial dysfunction and promoting mitophagy, providing a new therapeutic strategy and target for OA treatment.
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Affiliation(s)
- Ning Jiang
- Department of Orthopedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China; Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China; Department of Orthopedics, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - Baizhou Xing
- Department of Orthopedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China; Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Rong Peng
- Department of Orthopedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China; Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Jie Shang
- Department of Orthopedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China; Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Biao Wu
- Department of Orthopedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China; Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Peilun Xiao
- Department of Orthopedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Shiyuan Lin
- Department of Orthopedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China; Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Xianghe Xu
- Department of Orthopedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China; Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China.
| | - Huading Lu
- Department of Orthopedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China; Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China.
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88
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Tang S, Cao Y, Cai Z, Nie X, Ruan J, Zhou Z, Ruan G, Zhu Z, Han W, Ding C. The lncRNA PILA promotes NF-κB signaling in osteoarthritis by stimulating the activity of the protein arginine methyltransferase PRMT1. Sci Signal 2022; 15:eabm6265. [PMID: 35609127 DOI: 10.1126/scisignal.abm6265] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Inflammatory cytokine-induced activation of nuclear factor κB (NF-κB) signaling plays a critical role in the pathogenesis of osteoarthritis (OA). We identified PILA as a long noncoding RNA (lncRNA) that enhances NF-κB signaling and OA. The abundance of PILA was increased in damaged cartilage from patients with OA and in human articular chondrocytes stimulated with the proinflammatory cytokine tumor necrosis factor (TNF). Knockdown of PILA inhibited TNF-induced NF-κB signaling, extracellular matrix catabolism, and apoptosis in chondrocytes, whereas ectopic expression of PILA promoted NF-κB signaling and matrix degradation. PILA promoted PRMT1-mediated arginine methylation of DExH-box helicase 9 (DHX9), leading to an increase in the transcription of the gene encoding transforming growth factor β-activated kinase 1 (TAK1), an upstream activator of NF-κB signaling. Furthermore, intra-articular injection of an adenovirus vector encoding PILA triggered spontaneous cartilage loss and exacerbated posttraumatic OA in mice. This study provides insight into the regulation of NF-κB signaling in OA and identifies a potential therapeutic target for this disease.
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Affiliation(s)
- Su'an Tang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China.,Centre of Orthopedics, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China
| | - Yumei Cao
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China
| | - Zhaopeng Cai
- Department of Orthopedics, Eighth Affiliated Hospital, Sun Yat-sen University, 518033 Shenzhen, Guangdong, China
| | - Xiaoyu Nie
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China
| | - Jianzhao Ruan
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China
| | - Zuoqing Zhou
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China.,Department of Orthopedics, First Affiliated Hospital, Shaoyang University, 422099 Shaoyang, Hunan, China
| | - Guangfeng Ruan
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China
| | - Zhaohua Zhu
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China.,Centre of Orthopedics, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China
| | - Weiyu Han
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China.,Centre of Orthopedics, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China
| | - Changhai Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, 510280 Guangzhou, Guangdong, China.,Menzies Institute for Medical Research, University of Tasmania, 7000 Hobart, Tasmania, Australia
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89
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Kim C, Lee SG, Lim S, Jung M, Kwon SP, Hong J, Kang M, Sohn HS, Go S, Moon S, Lee SJ, Kim JS, Kim BS. A Senolytic-Eluting Coronary Stent for the Prevention of In-Stent Restenosis. ACS Biomater Sci Eng 2022; 8:1921-1929. [PMID: 35416659 DOI: 10.1021/acsbiomaterials.1c01611] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The vast majority of drug-eluting stents (DES) elute either sirolimus or one of its analogues. While limus drugs stymie vascular smooth muscle cell (VSMC) proliferation to prevent in-stent restenosis, their antiproliferative nature is indiscriminate and limits healing of the endothelium in stented vessels, increasing the risk of late-stent thrombosis. Oxidative stress, which is associated with vascular injury from stent implantation, can induce VSMCs to undergo senescence, and senescent VSMCs can produce pro-inflammatory cytokines capable of inducing proliferation of neighboring nonsenescent VSMCs. We explored the potential of senolytic therapy, which involves the selective elimination of senescent cells, in the form of a senolytic-eluting stent (SES) for interventional cardiology. Oxidative stress was modeled in vitro by exposing VSMCs to H2O2, and H2O2-mediated senescence was evaluated by cytochemical staining of senescence-associated β-galactosidase activity and qRT-PCR. Quiescent VSMCs were then treated with the conditioned medium (CM) of H2O2-treated VSMCs. Proliferative effects of CM were analyzed by staining for proliferating cell nuclear antigen. Senolytic effects of the first-generation senolytic ABT263 were observed in vitro, and the effects of ABT263 on endothelial cells were also investigated through an in vitro re-endothelialization assay. SESs were prepared by dip coating. Iliofemoral arteries of hypercholesteremic rabbits were implanted with SES, everolimus-eluting stents (EESs), or bare-metal stents (BMSs), and the area of stenosis was measured 4 weeks post-implantation using optical coherence tomography. We found that a portion of H2O2-treated VSMCs underwent senescence, and that CM of H2O2-treated senescent VSMCs triggered the proliferation of quiescent VSMCs. ABT263 reverted H2O2-mediated senescence and the proliferative capacity of senescent VSMC CM. Unlike everolimus, ABT263 did not affect endothelial cell migration and/or proliferation. SES, but not EES, significantly reduced stenosis area in vivo compared with bare-metal stents (BMSs). This study shows the potential of SES as an alternative to current forms of DES.
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Affiliation(s)
- Cheesue Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Seul-Gee Lee
- Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Songhyun Lim
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Mungyo Jung
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung Pil Kwon
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Jihye Hong
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Mikyung Kang
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hee Su Sohn
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Seokhyeong Go
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Sangjun Moon
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Seung-Jun Lee
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jung-Sun Kim
- Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.,Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Byung-Soo Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea.,Interdisciplinary Program for Bioengineering, Seoul National University, Seoul 08826, Republic of Korea.,Institute of Chemical Processes, Institute of Engineering Research, and BioMAX, Seoul National University, Seoul 08826, Republic of Korea
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90
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Dhanabalan KM, Dravid AA, Agarwal S, Sharath RK, Padmanabhan AK, Agarwal R. Intra-articular injection of rapamycin microparticles prevent senescence and effectively treat osteoarthritis. Bioeng Transl Med 2022; 8:e10298. [PMID: 36684078 PMCID: PMC9842044 DOI: 10.1002/btm2.10298] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/29/2022] [Accepted: 02/03/2022] [Indexed: 01/25/2023] Open
Abstract
Trauma to the knee joint is associated with significant cartilage degeneration and erosion of subchondral bone, which eventually leads to osteoarthritis (OA), resulting in substantial morbidity and healthcare burden. With no disease-modifying drugs in clinics, the current standard of care focuses on symptomatic relief and viscosupplementation. Modulation of autophagy and targeting senescence pathways are emerging as potential treatment strategies. Rapamycin has shown promise in OA disease amelioration by autophagy upregulation, yet its clinical use is hindered by difficulties in achieving therapeutic concentrations, necessitating multiple weekly injections. Rapamycin-loaded in poly(lactic-co-glycolic acid) microparticles (RMPs) induced autophagy, prevented senescence, and sustained sulphated glycosaminoglycans production in primary human articular chondrocytes from OA patients. RMPs were potent, nontoxic, and exhibited high retention time (up to 35 days) in mice joints. Intra-articular delivery of RMPs effectively mitigated cartilage damage and inflammation in surgery-induced OA when administered as a prophylactic or therapeutic regimen. Together, the study demonstrates the feasibility of using RMPs as a potential clinically translatable therapy to prevent the progression of post-traumatic OA.
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Affiliation(s)
- Kaamini M. Dhanabalan
- Centre for BioSystems Science and EngineeringIndian Institute of ScienceBengaluruIndia
| | - Ameya A. Dravid
- Centre for BioSystems Science and EngineeringIndian Institute of ScienceBengaluruIndia
| | - Smriti Agarwal
- Centre for BioSystems Science and EngineeringIndian Institute of ScienceBengaluruIndia
| | | | | | - Rachit Agarwal
- Centre for BioSystems Science and EngineeringIndian Institute of ScienceBengaluruIndia
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91
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Conway J, Certo M, Lord JM, Mauro C, Duggal NA. Understanding the role of host metabolites in the induction of immune senescence: Future strategies for keeping the ageing population healthy. Br J Pharmacol 2022; 179:1808-1824. [PMID: 34435354 DOI: 10.1111/bph.15671] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/12/2021] [Accepted: 08/19/2021] [Indexed: 12/24/2022] Open
Abstract
Advancing age is accompanied by significant remodelling of the immune system, termed immune senescence, and increased systemic inflammation, termed inflammageing, both of which contribute towards an increased risk of developing chronic diseases in old age. Age-associated alterations in metabolic homeostasis have been linked with changes in a range of physiological functions, but their effects on immune senescence remains poorly understood. In this article, we review the recent literature to formulate hypotheses as to how an age-associated dysfunctional metabolism, driven by an accumulation of key host metabolites (saturated fatty acids, cholesterol, ceramides and lactate) and loss of other metabolites (glutamine, tryptophan and short-chain fatty acids), might play a role in driving immune senescence and inflammageing, ultimately leading to diseases of old age. We also highlight the potential use of metabolic immunotherapeutic strategies targeting these processes in counteracting immune senescence and restoring immune homeostasis in older adults. LINKED ARTICLES: This article is part of a themed issue on Inflammation, Repair and Ageing. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v179.9/issuetoc.
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Affiliation(s)
- Jessica Conway
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
| | - Michelangelo Certo
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Janet M Lord
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham and University of Birmingham, Birmingham, UK
| | - Claudio Mauro
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
| | - Niharika A Duggal
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
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92
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Vincent TL, Alliston T, Kapoor M, Loeser RF, Troeberg L, Little CB. Osteoarthritis Pathophysiology: Therapeutic Target Discovery may Require a Multifaceted Approach. Clin Geriatr Med 2022; 38:193-219. [PMID: 35410676 PMCID: PMC9107912 DOI: 10.1016/j.cger.2021.11.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Molecular understanding of osteoarthritis (OA) has greatly increased through careful analysis of tissue samples, preclinical models, and large-scale agnostic "-omic" studies. There is broad acceptance that systemic and biomechanical signals affect multiple tissues of the joint, each of which could potentially be targeted to improve patient outcomes. In this review six experts in different aspects of OA pathogenesis provide their independent view on what they believe to be good tractable approaches to OA target discovery. We conclude that molecular discovery has been high but future transformative studies require a multidisciplinary holistic approach to develop therapeutic strategies with high clinical efficacy.
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Affiliation(s)
- Tonia L Vincent
- Centre for Osteoarthritis Pathogenesis Versus Arthritis, Kennedy Institute of Rheumatology, University of Oxford, Oxford OX3 7FY, UK
| | - Tamara Alliston
- Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, CA 94143, USA
| | - Mohit Kapoor
- Department of Surgery and Laboratory Medicine and Pathobiology, Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, University of Toronto, Toronto, Canada
| | - Richard F Loeser
- Department of Medicine, Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA
| | - Linda Troeberg
- University of East Anglia, Norwich Medical School, Norwich NR4 7UQ, UK
| | - Christopher B Little
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute University of Sydney Faculty of Medicine and Health at Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia.
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93
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Astrike-Davis EM, Coryell P, Loeser RF. Targeting cellular senescence as a novel treatment for osteoarthritis. Curr Opin Pharmacol 2022; 64:102213. [PMID: 35447516 DOI: 10.1016/j.coph.2022.102213] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 03/12/2022] [Indexed: 12/12/2022]
Abstract
Cellular senescence is associated with normal development and wound healing, but has also been implicated in the pathogenesis of numerous aging-related diseases including osteoarthritis (OA). Treatment strategies for OA are being developed that target senescent cells and the paracrine and autocrine secretions of the senescence-associated secretory phenotype (SASP). The field of potential therapies continues to expand as new mechanistic targets of cell senescence and the SASP are identified. Ongoing pre-clinical and clinical studies of drugs targeting cellular senescence yield significant promise, but have yet to demonstrate long-term efficacy. Therapeutic targeting of senescence is challenged by the diverse phenotypes of senescent cells, which can vary depending on age, species, tissue source, and type of physiologic stressor. Accordingly, there remains considerable demand for more studies to further develop and assess senotherapeutics as disease-modifying treatments for OA.
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Affiliation(s)
- Emma M Astrike-Davis
- Division of Rheumatology, Allergy, and Immunology, The Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Philip Coryell
- Division of Rheumatology, Allergy, and Immunology, The Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Richard F Loeser
- Division of Rheumatology, Allergy, and Immunology, The Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
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94
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Zhang W, Deng X, Liu H, Ke J, Xiang M, Ma Y, Zhang L, Yang M, Liu Y, Huang F. Identification and Verification of Potential Hub Genes in Amphetamine-Type Stimulant (ATS) and Opioid Dependence by Bioinformatic Analysis. Front Genet 2022; 13:837123. [PMID: 35432486 PMCID: PMC9006114 DOI: 10.3389/fgene.2022.837123] [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: 12/16/2021] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Objective: Amphetamine-type stimulant (ATS) and opioid dependencies are chronic inflammatory diseases with similar symptoms and common genomics. However, their coexpressive genes have not been thoroughly investigated. We aimed to identify and verify the coexpressive hub genes and pathway involved in the pathogenesis of ATS and opioid dependencies. Methods: The microarray of ATS- and opioid-treatment mouse models was obtained from the Gene Expression Omnibus database. GEO2R and Venn diagram were performed to identify differentially expressed genes (DEGs) and coexpressive DEGs (CDEGs). Functional annotation and protein–protein interaction network detected the potential functions. The hub genes were screened using the CytoHubba and MCODE plugin with different algorithms, and further validated by receiver operating characteristic analysis in the GSE15774 database. We also validated the hub genes mRNA levels in BV2 cells using qPCR. Result: Forty-four CDEGs were identified between ATS and opioid databases, which were prominently enriched in the PI3K/Akt signaling pathway. The top 10 hub genes were mainly enriched in apoptotic process (CD44, Dusp1, Sgk1, and Hspa1b), neuron differentiation, migration, and proliferation (Nr4a2 and Ddit4), response to external stimulation (Fos and Cdkn1a), and transcriptional regulation (Nr4a2 and Npas4). Receiver operating characteristic (ROC) analysis found that six hub genes (Fos, Dusp1, Sgk1, Ddit4, Cdkn1a, and Nr4a2) have an area under the curve (AUC) of more than 0.70 in GSE15774. The mRNA levels of Fos, Dusp1, Sgk1, Ddit4, Cdkn1a, PI3K, and Akt in BV2 cells and GSE15774 with METH and heroin treatments were higher than those of controls. However, the Nr4a2 mRNA levels increased in BV2 cells and decreased in the bioinformatic analysis. Conclusions: The identification of hub genes was associated with ATS and opioid dependencies, which were involved in apoptosis, neuron differentiation, migration, and proliferation. The PI3K/Akt signaling pathway might play a critical role in the pathogenesis of substance dependence.
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Affiliation(s)
- Wei Zhang
- Department of Forensic Pathology, West China School of Basic Medical Science & Forensic Medicine, Sichuan University, Chengdu, China
| | - Xiaodong Deng
- Department of Forensic Pathology, West China School of Basic Medical Science & Forensic Medicine, Sichuan University, Chengdu, China
- Department of Forensic Pathology, School of Basic Medical Science & Forensic Medicine, North Sichuan Medical College, Nanchong, China
| | - Huan Liu
- Department of Preventive Medicine, North Sichuan Medical College, Nanchong, China
| | - Jianlin Ke
- Department of Forensic Pathology, School of Basic Medical Science & Forensic Medicine, North Sichuan Medical College, Nanchong, China
| | - Mingliang Xiang
- Department of Forensic Pathology, School of Basic Medical Science & Forensic Medicine, North Sichuan Medical College, Nanchong, China
| | - Ying Ma
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Lixia Zhang
- Department of Forensic Pathology, School of Basic Medical Science & Forensic Medicine, North Sichuan Medical College, Nanchong, China
| | - Ming Yang
- Department of Forensic Pathology, School of Basic Medical Science & Forensic Medicine, North Sichuan Medical College, Nanchong, China
- Department of Criminal Investigation, Nanchong Municipal Public Security Bureau, Nanchong, China
| | - Yun Liu
- Department of Forensic Pathology, School of Basic Medical Science & Forensic Medicine, North Sichuan Medical College, Nanchong, China
- Medical Imaging Key Laboratory of Sichuan Province, North Sichuan Medical College, Nanchong, China
- *Correspondence: Yun Liu, ; Feijun Huang,
| | - Feijun Huang
- Department of Forensic Pathology, West China School of Basic Medical Science & Forensic Medicine, Sichuan University, Chengdu, China
- *Correspondence: Yun Liu, ; Feijun Huang,
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95
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Cytokine-Induced Senescence in the Tumor Microenvironment and Its Effects on Anti-Tumor Immune Responses. Cancers (Basel) 2022; 14:cancers14061364. [PMID: 35326515 PMCID: PMC8946098 DOI: 10.3390/cancers14061364] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/04/2022] [Accepted: 03/04/2022] [Indexed: 02/04/2023] Open
Abstract
In contrast to surgical excision, chemotherapy or radiation therapy, immune checkpoint blockade therapies primarily influence cells in the tumor microenvironment, especially the tumor-associated lymphocytes and antigen-presenting cells. Besides complete remission of tumor lesions, in some patients, early tumor regression is followed by a consolidation phase where residing tumors remain dormant. Whereas the cytotoxic mechanisms of the regression phase (i.e., apoptosis, necrosis, necroptosis, and immune cell-mediated cell death) have been extensively described, the mechanisms underlying the dormant state are still a matter of debate. Here, we propose immune-mediated induction of senescence in cancers as one important player. Senescence can be achieved by tumor-associated antigen-specific T helper 1 cells, cytokines or antibodies targeting immune checkpoints. This concept differs from cytotoxic treatment, which often targets the genetic makeup of cancer cells. The immune system's ability to establish "defensive walls" around tumors also places the tumor microenvironment into the fight against cancer. Those "defensive walls" isolate the tumor cells instead of increasing the selective pressure. They also keep the tumor cells in a non-proliferating state, thereby correcting the derailed tissue homeostasis. In conclusion, strengthening the senescence surveillance of tumors by the immune cells of the microenvironment is a future goal to dampen this life-threatening disease.
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96
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Single cell transcriptomics in human osteoarthritis synovium and in silico deconvoluted bulk RNA sequencing. Osteoarthritis Cartilage 2022; 30:475-480. [PMID: 34971754 PMCID: PMC10097426 DOI: 10.1016/j.joca.2021.12.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVES To reveal the heterogeneity of different cell types of osteoarthritis (OA) synovial tissues at a single-cell resolution, and determine by novel methodology whether bulk-RNA-seq data could be deconvoluted to create in silico scRNA-seq data for synovial tissue analyses. METHODS OA scRNA-seq data (102,077 synoviocytes) were provided by 17 patients undergoing total knee arthroplasty; 9 tissues with matched scRNA-seq and bulk RNA-seq data were used to evaluate six in silico gene deconvolution tools. Predicted and observed cell types and proportions were compared to identify the best deconvolution tool for synovium. RESULTS We identified seven distinct cell types in OA synovial tissues. Gene deconvolution identified three (of six) platforms as suitable for extrapolating cellular gene expression from bulk RNA-seq data. Using paired scRNA-seq and bulk RNA-seq data, an "arthritis" specific signature matrix was created and validated to have a significantly better predictive performance for synoviocytes than a default signature matrix. Use of the machine learning tool, Cell-type Identification By Estimating Relative Subsets of RNA Transcripts x (CIBERSORTx), to analyze rheumatoid arthritis (RA) and OA bulk RNA-seq data yielded proportions of T cells and fibroblasts that were similar to the gold standard observations from RA and OA scRNA-seq data, respectively. CONCLUSION This novel study revealed heterogeneity of synovial cell types in OA and the feasibility of gene deconvolution for synovial tissue.
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97
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Zhu R, Wan H, Yang H, Song M, Chai Y, Yu B. The Role of Senescence-Associated Secretory Phenotype in Bone Loss. Front Cell Dev Biol 2022; 10:841612. [PMID: 35223858 PMCID: PMC8864518 DOI: 10.3389/fcell.2022.841612] [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] [Received: 12/22/2021] [Accepted: 01/27/2022] [Indexed: 11/21/2022] Open
Abstract
As the population of most nations have a large proportion of older individuals, there is an increase in the prevalence of osteoporosis. Consequently, scientists have focused their attention on the pathogenic mechanisms of osteoporosis. Owing to an increase in studies on cellular senescence in recent years, research has begun to focus on the function of the senescent microenvironment in osteoporosis. With chronic inflammation, senescent cells in the bone marrow secrete a series of factors known as senescence-associated secretory phenotype (SASP) factors, acting on their own or surrounding healthy cells and consequently exacerbating ageing.The components of the SASP may differ depending on the cause of osteoporosis. This review aimed to summarize the relationship between SASP factors and osteoporosis and suggest new insights into the mechanistic investigation of osteoporosis.
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Affiliation(s)
- Runjiu Zhu
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haoyang Wan
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hong Yang
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Mingrui Song
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yu Chai
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Bin Yu
- Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
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98
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Little-Letsinger SE, Rubin J, Diekman B, Rubin CT, McGrath C, Pagnotti GM, Klett EL, Styner M. Exercise to Mend Aged-tissue Crosstalk in Bone Targeting Osteoporosis & Osteoarthritis. Semin Cell Dev Biol 2022; 123:22-35. [PMID: 34489173 PMCID: PMC8840966 DOI: 10.1016/j.semcdb.2021.08.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/16/2021] [Accepted: 08/19/2021] [Indexed: 12/16/2022]
Abstract
Aging induces alterations in bone structure and strength through a multitude of processes, exacerbating common aging- related diseases like osteoporosis and osteoarthritis. Cellular hallmarks of aging are examined, as related to bone and the marrow microenvironment, and ways in which these might contribute to a variety of age-related perturbations in osteoblasts, osteocytes, marrow adipocytes, chondrocytes, osteoclasts, and their respective progenitors. Cellular senescence, stem cell exhaustion, mitochondrial dysfunction, epigenetic and intracellular communication changes are central pathways and recognized as associated and potentially causal in aging. We focus on these in musculoskeletal system and highlight knowledge gaps in the literature regarding cellular and tissue crosstalk in bone, cartilage, and the bone marrow niche. While senolytics have been utilized to target aging pathways, here we propose non-pharmacologic, exercise-based interventions as prospective "senolytics" against aging effects on the skeleton. Increased bone mass and delayed onset or progression of osteoporosis and osteoarthritis are some of the recognized benefits of regular exercise across the lifespan. Further investigation is needed to delineate how cellular indicators of aging manifest in bone and the marrow niche and how altered cellular and tissue crosstalk impact disease progression, as well as consideration of exercise as a therapeutic modality, as a means to enhance discovery of bone-targeted therapies.
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Affiliation(s)
- SE Little-Letsinger
- Department of Medicine, Division of Endocrinology & Metabolism, University of North Carolina at Chapel Hill
| | - J Rubin
- Department of Medicine, Division of Endocrinology & Metabolism, University of North Carolina at Chapel Hill,North Carolina Diabetes Research Center (NCDRC), University of North Carolina at Chapel Hill,Department of Medicine, Thurston Arthritis Research Center (TARC), University of North Carolina at Chapel Hill
| | - B Diekman
- Department of Medicine, Thurston Arthritis Research Center (TARC), University of North Carolina at Chapel Hill,Joint Departments of Biomedical Engineering NC State & University of North Carolina at Chapel Hill
| | - CT Rubin
- Department of Biomedical Engineering, State University of New York at Stony Brook
| | - C McGrath
- Department of Medicine, Division of Endocrinology & Metabolism, University of North Carolina at Chapel Hill
| | - GM Pagnotti
- Dept of Endocrine, Neoplasia, and Hormonal Disorders, University Texas MD Anderson Cancer Center, Houston
| | - EL Klett
- Department of Medicine, Division of Endocrinology & Metabolism, University of North Carolina at Chapel Hill,Department of Nutrition, School of Public Health, University of North Carolina at Chapel Hill
| | - M Styner
- Department of Medicine, Division of Endocrinology & Metabolism, University of North Carolina at Chapel Hill,North Carolina Diabetes Research Center (NCDRC), University of North Carolina at Chapel Hill,Department of Medicine, Thurston Arthritis Research Center (TARC), University of North Carolina at Chapel Hill
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99
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Wu CJ, Liu RX, Huan SW, Tang W, Zeng YK, Zhang JC, Yang J, Li ZY, Zhou Y, Zha ZG, Zhang HT, Liu N. Senescent skeletal cells cross-talk with synovial cells plays a key role in the pathogenesis of osteoarthritis. Arthritis Res Ther 2022; 24:59. [PMID: 35227288 PMCID: PMC8883702 DOI: 10.1186/s13075-022-02747-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 02/14/2022] [Indexed: 12/20/2022] Open
Abstract
Osteoarthritis (OA) has been recognized as an age-related degenerative disease commonly seen in the elderly that affects the whole “organ” including cartilage, subchondral bone, synovium, and muscles. An increasing number of studies have suggested that the accumulation of senescent cells triggering by various stresses in the local joint contributes to the pathogenesis of age-related diseases including OA. In this review, we mainly focus on the role of the senescent skeletal cells (chondrocytes, osteoblasts, osteoclasts, osteocyte, and muscle cells) in initiating the development and progression of OA alone or through cross-talk with the macrophages/synovial cells. Accordingly, we summarize the current OA-targeted therapies based on the abovementioned theory, e.g., by eliminating senescent skeletal cells and/or inhibiting the senescence-associated secretory phenotype (SASP) that drives senescence. Furthermore, the existing animal models for the study of OA from the perspective of senescence are highlighted to fill the gap between basic research and clinical applications. Overall, in this review, we systematically assess the current understanding of cellular senescence in OA, which in turn might shed light on the stratified OA treatments.
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Affiliation(s)
- Chong-Jie Wu
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Ri-Xu Liu
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Song-Wei Huan
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China.,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China
| | - Wang Tang
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Yu-Kai Zeng
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Jun-Cheng Zhang
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Jie Yang
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China.,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China
| | - Zhen-Yan Li
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China.,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China
| | - Ying Zhou
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Zhen-Gang Zha
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China.,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China
| | - Huan-Tian Zhang
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China. .,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China.
| | - Ning Liu
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China. .,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China.
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Xu Y, Xue S, Zhang T, Jin X, Wang C, Lu H, Zhong Y, Chen H, Zhu L, Ma J, Sang W. Toddalolactone protects against osteoarthritis by ameliorating chondrocyte inflammation and suppressing osteoclastogenesis. Chin Med 2022; 17:18. [PMID: 35123541 PMCID: PMC8817519 DOI: 10.1186/s13020-022-00576-w] [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: 12/14/2021] [Accepted: 01/24/2022] [Indexed: 11/10/2022] Open
Abstract
Background Osteoarthritis (OA) is widely recognized as the most common chronic joint disease accompanied by progressive cartilage and subchondral bone damage. Toddalolactone (TOD), a natural compound extracted from Toddalia asiatica (L.) Lam., has been widely used in the treatment of stroke, rheumatoid arthritis, and oedema. Nevertheless, what TOD acts as in the pathogenesis and progression of OA hasn’t been reported. In this investigation, we have aimed to determine how TOD affects OA in vitro and in vivo. Methods LPS (10 µg/ml) and IL-1β (10 ng/ml) were employed to induce chondrocyte inflammation or RANKL to induce osteoclast differentiation in bone marrow derived macrophages (BMMs). The effects of TOD on chondrocyte inflammation and osteoclast differentiation were evaluated. Anterior cruciate ligament transection (ACLT) was performed to develop an OA animal model and study the effects of TOD. Results We found that TOD inhibited the expression of inflammatory and catabolic mediators (IL-6, IL-8, TNF-α, MMP2, MMP9, and MMP13) in inflammatory chondrocytes in vitro. Furthermore, TOD was proven to inhibit RANKL-induced-osteoclastogenesis and inhibit the expression of osteoclast marker genes. Our data also confirmed that TOD suppressed the destruction of articular cartilage and osteoclastogenesis via inhibiting the activation of NF-κB and MAPK signalling pathways. In the ACLT mouse model, we found that TOD attenuated cartilage erosion and inhibited bone resorption. Conclusions These results showed that TOD can be adopted as a potential therapeutic agent for OA. Supplementary Information The online version contains supplementary material available at 10.1186/s13020-022-00576-w.
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