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Greenberger JS, Hou W, Shields D, Fisher R, Epperly MW, Sarkaria I, Wipf P, Wang H. SARS-CoV-2 Spike Protein Induces Oxidative Stress and Senescence in Mouse and Human Lung. In Vivo 2024; 38:1546-1556. [PMID: 38936937 PMCID: PMC11215613 DOI: 10.21873/invivo.13605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/04/2024] [Accepted: 03/19/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND/AIM There is concern that people who had COVID-19 will develop pulmonary fibrosis. Using mouse models, we compared pulmonary inflammation following injection of the spike protein of SARS-CoV-2 (COVID-19) to radiation-induced inflammation to demonstrate similarities between the two models. SARS-CoV-2 (COVID-19) induces inflammatory cytokines and stress responses, which are also common to ionizing irradiation-induced acute pulmonary damage. Cellular senescence, which is a late effect following exposure to SARS-CoV-2 as well as radiation, was investigated. MATERIALS AND METHODS We evaluated the effect of SARS-CoV-2 spike protein compared to ionizing irradiation in K18-hACE2 mouse lung, human lung cell lines, and in freshly explanted human lung. We measured reactive oxygen species, DNA double-strand breaks, stimulation of transforming growth factor-beta pathways, and cellular senescence following exposure to SARS-CoV-2 spike protein, irradiation or SARS-COV-2 and irradiation. We also measured the effects of the antioxidant radiation mitigator MMS350 following irradiation or exposure to SARS-CoV-2. RESULTS SARS-CoV-2 spike protein induced reactive oxygen species, DNA double-strand breaks, transforming growth factor-β signaling pathways, and senescence, which were exacerbated by prior or subsequent ionizing irradiation. The water-soluble radiation countermeasure, MMS350, reduced spike protein-induced changes. CONCLUSION In both the SARS-Co-2 and the irradiation mouse models, similar responses were seen indicating that irradiation or exposure to SARS-CoV-2 virus may lead to similar lung diseases such as pulmonary fibrosis. Combination of irradiation and SARS-CoV-2 may result in a more severe case of pulmonary fibrosis. Cellular senescence may explain some of the late effects of exposure to SARS-CoV-2 spike protein and to ionizing irradiation.
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Affiliation(s)
- Joel S Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA, U.S.A.;
| | - Wen Hou
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA, U.S.A
| | - Donna Shields
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA, U.S.A
| | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA, U.S.A
| | - Michael W Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA, U.S.A
| | - Inderpal Sarkaria
- Department of Thoracic Surgery, UPMC-Shadyside, Pittsburgh, PA, U.S.A
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, U.S.A
| | - Hong Wang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA, U.S.A
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2
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Spina JS, Carr TL, Phillips LA, Knight HL, Crosbie NE, Lloyd SM, Jhala MA, Lam TJ, Karman J, Clements ME, Day TA, Crane JD, Housley WJ. Modulating in vitro lung fibroblast activation via senolysis of senescent human alveolar epithelial cells. Aging (Albany NY) 2024; 16:10694-10723. [PMID: 38976646 PMCID: PMC11272128 DOI: 10.18632/aging.205994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 04/18/2024] [Indexed: 07/10/2024]
Abstract
Idiopathic pulmonary fibrosis (IPF) is an age-related disease with poor prognosis and limited therapeutic options. Activation of lung fibroblasts and differentiation to myofibroblasts are the principal effectors of disease pathology, but damage and senescence of alveolar epithelial cells, specifically type II (ATII) cells, has recently been identified as a potential trigger event for the progressive disease cycle. Targeting ATII senescence and the senescence-associated secretory phenotype (SASP) is an attractive therapeutic strategy; however, translatable primary human cell models that enable mechanistic studies and drug development are lacking. Here, we describe a novel system of conditioned medium (CM) transfer from bleomycin-induced senescent primary alveolar epithelial cells (AEC) onto normal human lung fibroblasts (NHLF) that demonstrates an enhanced fibrotic transcriptional and secretory phenotype compared to non-senescent AEC CM treatment or direct bleomycin damage of the NHLFs. In this system, the bleomycin-treated AECs exhibit classical hallmarks of cellular senescence, including SASP and a gene expression profile that resembles aberrant epithelial cells of the IPF lung. Fibroblast activation by CM transfer is attenuated by pre-treatment of senescent AECs with the senolytic Navitoclax and AD80, but not with the standard of care agent Nintedanib or senomorphic JAK-targeting drugs (e.g., ABT-317, ruxolitinib). This model provides a relevant human system for profiling novel senescence-targeting therapeutics for IPF drug development.
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Affiliation(s)
- Joseph S. Spina
- AbbVie Bioresearch Center, Worcester, MA 01605, USA
- Department of Biology, Northeastern University, Boston, MA 02115, USA
| | | | | | | | | | | | | | | | - Jozsef Karman
- AbbVie Bioresearch Center, Worcester, MA 01605, USA
- Current address: Merck, Cambridge, MA 02141, USA
| | | | - Tovah A. Day
- Department of Biology, Northeastern University, Boston, MA 02115, USA
| | - Justin D. Crane
- Department of Biology, Northeastern University, Boston, MA 02115, USA
- Current address: Pfizer Inc., Cambridge, MA 02139, USA
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Luo L, Zhang W, You S, Cui X, Tu H, Yi Q, Wu J, Liu O. The role of epithelial cells in fibrosis: Mechanisms and treatment. Pharmacol Res 2024; 202:107144. [PMID: 38484858 DOI: 10.1016/j.phrs.2024.107144] [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: 11/02/2023] [Revised: 02/19/2024] [Accepted: 03/12/2024] [Indexed: 03/19/2024]
Abstract
Fibrosis is a pathological process that affects multiple organs and is considered one of the major causes of morbidity and mortality in multiple diseases, resulting in an enormous disease burden. Current studies have focused on fibroblasts and myofibroblasts, which directly lead to imbalance in generation and degradation of extracellular matrix (ECM). In recent years, an increasing number of studies have focused on the role of epithelial cells in fibrosis. In some cases, epithelial cells are first exposed to external physicochemical stimuli that may directly drive collagen accumulation in the mesenchyme. In other cases, the source of stimulation is mainly immune cells and some cytokines, and epithelial cells are similarly altered in the process. In this review, we will focus on the multiple dynamic alterations involved in epithelial cells after injury and during fibrogenesis, discuss the association among them, and summarize some therapies targeting changed epithelial cells. Especially, epithelial mesenchymal transition (EMT) is the key central step, which is closely linked to other biological behaviors. Meanwhile, we think studies on disruption of epithelial barrier, epithelial cell death and altered basal stem cell populations and stemness in fibrosis are not appreciated. We believe that therapies targeted epithelial cells can prevent the progress of fibrosis, but not reverse it. The epithelial cell targeting therapies will provide a wonderful preventive and delaying action.
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Affiliation(s)
- Liuyi Luo
- Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, Hunan, China; Academician Workstation for Oral-maxilofacial and Regenerative Medicine, Central South University, Changsha, Hunan, China
| | - Wei Zhang
- Department of Oral Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Siyao You
- Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, Hunan, China; Academician Workstation for Oral-maxilofacial and Regenerative Medicine, Central South University, Changsha, Hunan, China
| | - Xinyan Cui
- Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, Hunan, China; Academician Workstation for Oral-maxilofacial and Regenerative Medicine, Central South University, Changsha, Hunan, China
| | - Hua Tu
- Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, Hunan, China; Academician Workstation for Oral-maxilofacial and Regenerative Medicine, Central South University, Changsha, Hunan, China
| | - Qiao Yi
- Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, Hunan, China; Academician Workstation for Oral-maxilofacial and Regenerative Medicine, Central South University, Changsha, Hunan, China
| | - Jianjun Wu
- Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, Hunan, China; Academician Workstation for Oral-maxilofacial and Regenerative Medicine, Central South University, Changsha, Hunan, China.
| | - Ousheng Liu
- Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, Hunan, China; Academician Workstation for Oral-maxilofacial and Regenerative Medicine, Central South University, Changsha, Hunan, China.
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4
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Zhang C, Chen L, Xie C, Wang F, Wang J, Zhou H, Liu Q, Zeng Z, Li N, Huang J, Zhao Y, Liu H. YTHDC1 delays cellular senescence and pulmonary fibrosis by activating ATR in an m6A-independent manner. EMBO J 2024; 43:61-86. [PMID: 38177310 PMCID: PMC10883269 DOI: 10.1038/s44318-023-00003-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 09/23/2023] [Accepted: 10/26/2023] [Indexed: 01/06/2024] Open
Abstract
Accumulation of DNA damage in the lung induces cellular senescence and promotes age-related diseases such as idiopathic pulmonary fibrosis (IPF). Hence, understanding the mechanistic regulation of DNA damage repair is important for anti-aging therapies and disease control. Here, we identified an m6A-independent role of the RNA-binding protein YTHDC1 in counteracting stress-induced pulmonary senescence and fibrosis. YTHDC1 is primarily expressed in pulmonary alveolar epithelial type 2 (AECII) cells and its AECII expression is significantly decreased in AECIIs during fibrosis. Exogenous overexpression of YTHDC1 alleviates pulmonary senescence and fibrosis independent of its m6A-binding ability, while YTHDC1 deletion enhances disease progression in mice. Mechanistically, YTHDC1 promotes the interaction between TopBP1 and MRE11, thereby activating ATR and facilitating DNA damage repair. These findings reveal a noncanonical function of YTHDC1 in delaying cellular senescence, and suggest that enhancing YTHDC1 expression in the lung could be an effective treatment strategy for pulmonary fibrosis.
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Affiliation(s)
- Canfeng Zhang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Liping Chen
- The Center for Medical Research, The First People's Hospital of Nanning City, Nanning, 530021, China
| | - Chen Xie
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Fengwei Wang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Juan Wang
- Division of Pulmonary and Critical Care Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Haoxian Zhou
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qianyi Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Zhuo Zeng
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Na Li
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Junjiu Huang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yong Zhao
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Haiying Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
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Wan R, Wang L, Zhu M, Li W, Duan Y, Yu G. Cellular Senescence: A Troy Horse in Pulmonary Fibrosis. Int J Mol Sci 2023; 24:16410. [PMID: 38003600 PMCID: PMC10671822 DOI: 10.3390/ijms242216410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/07/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
Pulmonary fibrosis (PF) is a chronic interstitial lung disease characterized by myofibroblast abnormal activation and extracellular matrix deposition. However, the pathogenesis of PF remains unclear, and treatment options are limited. Epidemiological studies have shown that the average age of PF patients is estimated to be over 65 years, and the incidence of the disease increases with age. Therefore, PF is considered an age-related disease. A preliminary study on PF patients demonstrated that the combination therapy of the anti-senescence drugs dasatinib and quercetin improved physical functional indicators. Given the global aging population and the role of cellular senescence in tissue and organ aging, understanding the impact of cellular senescence on PF is of growing interest. This article systematically summarizes the causes and signaling pathways of cellular senescence in PF. It also objectively analyzes the impact of senescence in AECs and fibroblasts on PF development. Furthermore, potential intervention methods targeting cellular senescence in PF treatment are discussed. This review not only provides a strong theoretical foundation for understanding and manipulating cellular senescence, developing new therapies to improve age-related diseases, and extending a healthy lifespan but also offers hope for reversing the toxicity caused by the massive accumulation of senescence cells in humans.
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Affiliation(s)
- Ruyan Wan
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang 453007, China; (R.W.); (L.W.); (M.Z.); (W.L.); (Y.D.)
- State Key Laboratory Cell Differentiation and Regulation, Henan Normal University, Xinxiang 453007, China
| | - Lan Wang
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang 453007, China; (R.W.); (L.W.); (M.Z.); (W.L.); (Y.D.)
- State Key Laboratory Cell Differentiation and Regulation, Henan Normal University, Xinxiang 453007, China
| | - Miaomiao Zhu
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang 453007, China; (R.W.); (L.W.); (M.Z.); (W.L.); (Y.D.)
- State Key Laboratory Cell Differentiation and Regulation, Henan Normal University, Xinxiang 453007, China
| | - Wenwen Li
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang 453007, China; (R.W.); (L.W.); (M.Z.); (W.L.); (Y.D.)
- State Key Laboratory Cell Differentiation and Regulation, Henan Normal University, Xinxiang 453007, China
| | - Yudi Duan
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang 453007, China; (R.W.); (L.W.); (M.Z.); (W.L.); (Y.D.)
- State Key Laboratory Cell Differentiation and Regulation, Henan Normal University, Xinxiang 453007, China
| | - Guoying Yu
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang 453007, China; (R.W.); (L.W.); (M.Z.); (W.L.); (Y.D.)
- State Key Laboratory Cell Differentiation and Regulation, Henan Normal University, Xinxiang 453007, China
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6
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Parimon T, Chen P, Stripp BR, Liang J, Jiang D, Noble PW, Parks WC, Yao C. Senescence of alveolar epithelial progenitor cells: a critical driver of lung fibrosis. Am J Physiol Cell Physiol 2023; 325:C483-C495. [PMID: 37458437 PMCID: PMC10511168 DOI: 10.1152/ajpcell.00239.2023] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/05/2023] [Accepted: 07/05/2023] [Indexed: 08/04/2023]
Abstract
Pulmonary fibrosis comprises a range of chronic interstitial lung diseases (ILDs) that impose a significant burden on patients and public health. Among these, idiopathic pulmonary fibrosis (IPF), a disease of aging, is the most common and most severe form of ILD and is treated largely by lung transplantation. The lack of effective treatments to stop or reverse lung fibrosis-in fact, fibrosis in most organs-has sparked the need to understand causative mechanisms with the goal of identifying critical points for potential therapeutic intervention. Findings from many groups have indicated that repeated injury to the alveolar epithelium-where gas exchange occurs-leads to stem cell exhaustion and impaired alveolar repair that, in turn, triggers the onset and progression of fibrosis. Cellular senescence of alveolar epithelial progenitors is a critical cause of stemness failure. Hence, senescence impairs repair and thus contributes significantly to fibrosis. In this review, we discuss recent evidence indicating that senescence of epithelial progenitor cells impairs alveolar homeostasis and repair creating a profibrotic environment. Moreover, we discuss the impact of senescent alveolar epithelial progenitors, alveolar type 2 (AT2) cells, and AT2-derived transitional epithelial cells in fibrosis. Emerging evidence indicates that transitional epithelial cells are prone to senescence and, hence, are a new player involved in senescence-associated lung fibrosis. Understanding the complex interplay of cell types and cellular regulatory factors contributing to alveolar epithelial progenitor senescence will be crucial to developing targeted therapies to mitigate their downstream profibrotic sequelae and to promote normal alveolar repair.NEW & NOTEWORTHY With an aging population, lung fibrotic diseases are becoming a global health burden. Dysfunctional repair of the alveolar epithelium is a key causative process that initiates lung fibrosis. Normal alveolar regeneration relies on functional progenitor cells; however, the senescence of these cells, which increases with age, hinders their ability to contribute to repair. Here, we discuss studies on the control and consequence of progenitor cell senescence in fibrosis and opportunities for research.
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Affiliation(s)
- Tanyalak Parimon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States
| | - Peter Chen
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States
| | - Barry R Stripp
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States
| | - Jiurong Liang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States
| | - Dianhua Jiang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States
| | - Paul W Noble
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States
| | - William C Parks
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States
| | - Changfu Yao
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States
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Controversies and Recent Advances in Senescence and Aging. Cells 2023; 12:cells12060902. [PMID: 36980243 PMCID: PMC10046983 DOI: 10.3390/cells12060902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023] Open
Abstract
Aging is the leading predictive factor of many chronic diseases that account for most of the morbidity and mortality worldwide, i [...]
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Zhang X, Hu X, Zhang Y, Liu B, Pan H, Liu Z, Yao Z, Zhu Q, Wu C, Shen T. Impaired autophagy-accelerated senescence of alveolar type II epithelial cells drives pulmonary fibrosis induced by single-walled carbon nanotubes. J Nanobiotechnology 2023; 21:69. [PMID: 36849924 PMCID: PMC9970859 DOI: 10.1186/s12951-023-01821-6] [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: 01/18/2023] [Accepted: 02/15/2023] [Indexed: 03/01/2023] Open
Abstract
BACKGROUND The rapid increase in production and application of carbon nanotubes (CNTs) has led to wide public concerns in their potential risks to human health. Single-walled CNTs (SWCNTs), as an extensively applied type of CNTs, have shown strong capacity to induce pulmonary fibrosis in animal models, however, the intrinsic mechanisms remain uncertain. RESULTS In vivo experiments, we showed that accelerated senescence of alveolar type II epithelial cells (AECIIs) was associated with pulmonary fibrosis in SWCNTs-exposed mice, as well as SWCNTs-induced fibrotic lungs exhibited impaired autophagic flux in AECIIs in a time dependent manner. In vitro, SWCNTs exposure resulted in profound dysfunctions of MLE-12 cells, characterized by impaired autophagic flux and accelerated cellular senescence. Furthermore, the conditioned medium from SWCNTs-exposed MLE-12 cells promoted fibroblast-myofibroblast transdifferentiation (FMT). Additionally, restoration of autophagy flux with rapamycin significantly alleviated SWCNTs-triggered senescence and subsequent FMT whereas inhibiting autophagy using 3-MA aggravated SWCNTs-triggered senescence in MLE-12 cells and FMT. CONCLUSION SWCNTs trigger senescence of AECIIs by impairing autophagic flux mediated pulmonary fibrosis. The findings raise the possibility of senescence-related cytokines as potential biomarkers for the hazard of CNTs exposure and regulating autophagy as an appealing target to halt CNTs-induced development of pulmonary fibrosis.
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Affiliation(s)
- Xiang Zhang
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Xinxin Hu
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Yuqing Zhang
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Bin Liu
- Department of Medical Aspects of Specific Environments, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Haihong Pan
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Zikai Liu
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Zhuomeng Yao
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Qixing Zhu
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Changhao Wu
- Department of Biochemistry and Physiology, Faculty of Heath and Medical Sciences, University of Surrey, Surrey, Guildford, UK
| | - Tong Shen
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, 230032, China.
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Papiris SA, Kannengiesser C, Borie R, Kolilekas L, Kallieri M, Apollonatou V, Ba I, Nathan N, Bush A, Griese M, Dieude P, Crestani B, Manali ED. Genetics in Idiopathic Pulmonary Fibrosis: A Clinical Perspective. Diagnostics (Basel) 2022; 12:2928. [PMID: 36552935 PMCID: PMC9777433 DOI: 10.3390/diagnostics12122928] [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: 10/14/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Unraveling the genetic background in a significant proportion of patients with both sporadic and familial IPF provided new insights into the pathogenic pathways of pulmonary fibrosis. AIM The aim of the present study is to overview the clinical significance of genetics in IPF. PERSPECTIVE It is fascinating to realize the so-far underestimated but dynamically increasing impact that genetics has on aspects related to the pathophysiology, accurate and early diagnosis, and treatment and prevention of this devastating disease. Genetics in IPF have contributed as no other in unchaining the disease from the dogma of a "a sporadic entity of the elderly, limited to the lungs" and allowed all scientists, but mostly clinicians, all over the world to consider its many aspects and "faces" in all age groups, including its co-existence with several extra pulmonary conditions from cutaneous albinism to bone-marrow and liver failure. CONCLUSION By providing additional evidence for unsuspected characteristics such as immunodeficiency, impaired mucus, and surfactant and telomere maintenance that very often co-exist through the interaction of common and rare genetic variants in the same patient, genetics have created a generous and pluralistic yet unifying platform that could lead to the understanding of the injurious and pro-fibrotic effects of many seemingly unrelated extrinsic and intrinsic offending factors. The same platform constantly instructs us about our limitations as well as about the heritability, the knowledge and the wisdom that is still missing.
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Affiliation(s)
- Spyros A. Papiris
- 2nd Pulmonary Medicine Department, General University Hospital “Attikon”, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Caroline Kannengiesser
- Département de Génétique, APHP Hôpital Bichat, Université de Paris, 75018 Paris, France
- INSERM UMR 1152, Université de Paris, 75018 Paris, France
| | - Raphael Borie
- Service de Pneumologie A, INSERM UMR_1152, Centre de Référence des Maladies Pulmonaires Rares, FHU APOLLO, APHP Hôpital Bichat, Sorbonne Université, 75018 Paris, France
| | - Lykourgos Kolilekas
- 7th Pulmonary Department, Athens Chest Hospital “Sotiria”, 11527 Athens, Greece
| | - Maria Kallieri
- 2nd Pulmonary Medicine Department, General University Hospital “Attikon”, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Vasiliki Apollonatou
- 2nd Pulmonary Medicine Department, General University Hospital “Attikon”, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Ibrahima Ba
- Département de Génétique, APHP Hôpital Bichat, Université de Paris, 75018 Paris, France
| | - Nadia Nathan
- Peditric Pulmonology Department and Reference Centre for Rare Lung Diseases RespiRare, INSERM UMR_S933 Laboratory of Childhood Genetic Diseases, Armand Trousseau Hospital, Sorbonne University and APHP, 75012 Paris, France
| | - Andrew Bush
- Paediatrics and Paediatric Respirology, Imperial College, Imperial Centre for Paediatrics and Child Health, Royal Brompton Harefield NHS Foundation Trust, London SW3 6NP, UK
| | - Matthias Griese
- Department of Pediatric Pneumology, Dr von Hauner Children’s Hospital, Ludwig-Maximilians-University, German Center for Lung Research, 80337 Munich, Germany
| | - Philippe Dieude
- Department of Rheumatology, INSERM U1152, APHP Hôpital Bichat-Claude Bernard, Université de Paris, 75018 Paris, France
| | - Bruno Crestani
- Service de Pneumologie A, INSERM UMR_1152, Centre de Référence des Maladies Pulmonaires Rares, FHU APOLLO, APHP Hôpital Bichat, Sorbonne Université, 75018 Paris, France
| | - Effrosyni D. Manali
- 2nd Pulmonary Medicine Department, General University Hospital “Attikon”, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
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Zhang T, Zhang J, Lv C, Li H, Song X. Senescent AECⅡ and the implication for idiopathic pulmonary fibrosis treatment. Front Pharmacol 2022; 13:1059434. [PMID: 36457712 PMCID: PMC9705785 DOI: 10.3389/fphar.2022.1059434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/01/2022] [Indexed: 07/21/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic and lethal lung disease with limited treatment options. The onset of IPF increases with age, indicating that aging is a major risk factor for IPF. Among the hallmarks of aging, cellular senescence is the primordial driver and primary etiological factor for tissue and organ aging, and an independent risk factor for the progression of IPF. In this review, we focus on the senescence of alveolar type II epithelial cells (AECIIs) and systematically summarize abnormal changes in signal pathways and biological process and implications of senescent AECIIs during IPF progression. Meanwhile, we objectively analyze current medications targeting the elimination of senescent cells or restoration of vitality such as senolytics, senomorphics, autophagy regulators, and stem cell therapy. Finally, we dialectically discuss the feasibility and limitation of targeting senescent AECIIs for IPF treatment. We hope that the understanding will provide new insights to the development of senescent AECII-based approaches for the prevention and mitigation of IPF.
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Affiliation(s)
- Tingwei Zhang
- Department of Respiratory and Critical Care Medicine, Binzhou Medical University Hospital, Binzhou Medical University, Binzhou, China
| | - Jinjin Zhang
- Department of Cellular and Genetic Medicine, School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Changjun Lv
- Department of Respiratory and Critical Care Medicine, Binzhou Medical University Hospital, Binzhou Medical University, Binzhou, China
| | - Hongbo Li
- Department of Respiratory and Critical Care Medicine, Binzhou Medical University Hospital, Binzhou Medical University, Binzhou, China
| | - Xiaodong Song
- Department of Cellular and Genetic Medicine, School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
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11
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Cogno N, Bauer R, Durante M. An Agent-Based Model of Radiation-Induced Lung Fibrosis. Int J Mol Sci 2022; 23:ijms232213920. [PMID: 36430398 PMCID: PMC9693125 DOI: 10.3390/ijms232213920] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/03/2022] [Accepted: 11/05/2022] [Indexed: 11/16/2022] Open
Abstract
Early- and late-phase radiation-induced lung injuries, namely pneumonitis and lung fibrosis (RILF), severely constrain the maximum dose and irradiated volume in thoracic radiotherapy. As the most radiosensitive targets, epithelial cells respond to radiation either by undergoing apoptosis or switching to a senescent phenotype that triggers the immune system and damages surrounding healthy cells. Unresolved inflammation stimulates mesenchymal cells' proliferation and extracellular matrix (ECM) secretion, which irreversibly stiffens the alveolar walls and leads to respiratory failure. Although a thorough understanding is lacking, RILF and idiopathic pulmonary fibrosis share multiple pathways and would mutually benefit from further insights into disease progression. Furthermore, current normal tissue complication probability (NTCP) models rely on clinical experience to set tolerance doses for organs at risk and leave aside mechanistic interpretations of the undergoing processes. To these aims, we implemented a 3D agent-based model (ABM) of an alveolar duct that simulates cell dynamics and substance diffusion following radiation injury. Emphasis was placed on cell repopulation, senescent clearance, and intra/inter-alveolar bystander senescence while tracking ECM deposition. Our ABM successfully replicates early and late fibrotic response patterns reported in the literature along with the ECM sigmoidal dose-response curve. Moreover, surrogate measures of RILF severity via a custom indicator show qualitative agreement with published fibrosis indices. Finally, our ABM provides a fully mechanistic alveolar survival curve highlighting the need to include bystander damage in lung NTCP models.
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Affiliation(s)
- Nicolò Cogno
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- Institute for Condensed Matter Physics, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - Roman Bauer
- Department of Computer Science, University of Surrey, Guildford GU2 7XH, UK
| | - Marco Durante
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- Institute for Condensed Matter Physics, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- Correspondence: or
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12
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Lupatov AY, Yarygin KN. Telomeres and Telomerase in the Control of Stem Cells. Biomedicines 2022; 10:biomedicines10102335. [PMID: 36289597 PMCID: PMC9598777 DOI: 10.3390/biomedicines10102335] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
Stem cells serve as a source of cellular material in embryogenesis and postnatal growth and regeneration. This requires significant proliferative potential ensured by sufficient telomere length. Telomere attrition in the stem cells and their niche cells can result in the exhaustion of the regenerative potential of high-turnover organs, causing or contributing to the onset of age-related diseases. In this review, stem cells are examined in the context of the current telomere-centric theory of cell aging, which assumes that telomere shortening depends not just on the number of cell doublings (mitotic clock) but also on the influence of various internal and external factors. The influence of the telomerase and telomere length on the functional activity of different stem cell types, as well as on their aging and prospects of use in cell therapy applications, is discussed.
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13
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Ramos-Rincon JM, Herrera-García C, Silva-Ortega S, Portilla-Tamarit J, Alenda C, Jaime-Sanchez FA, Arenas-Jiménez J, Fornés-Riera FE, Scholz A, Escribano I, Pedrero-Castillo V, Muñoz-Miguelsanz C, Orts-Llinares P, Martí-Pastor A, Amo-Lozano A, García-Sevila R, Ribes-Mengual I, Moreno-Perez O, Concepcion-Aramendía L, Merino E, Sánchez-Martínez R, Aranda I. Pathological Findings Associated With SARS-CoV-2 on Postmortem Core Biopsies: Correlation With Clinical Presentation and Disease Course. Front Med (Lausanne) 2022; 9:874307. [PMID: 35872778 PMCID: PMC9301383 DOI: 10.3389/fmed.2022.874307] [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: 02/11/2022] [Accepted: 05/30/2022] [Indexed: 12/31/2022] Open
Abstract
Background Autopsies can shed light on the pathogenesis of new and emerging diseases. Aim To describe needle core necropsy findings of the lung, heart, and liver in decedents with COVID-19. Material Cross-sectional study of needle core necropsies in patients who died with virologically confirmed COVID-19. Histopathological analyses were performed, and clinical data and patient course evaluated. Results Chest core necropsies were performed in 71 decedents with a median age of 81 years (range 52–97); 47 (65.3%) were men. The median interval from symptoms onset to death was 17.5 days (range 1–84). Samples of lung (n = 62, 87.3%), heart (n = 48, 67.6%) and liver (n = 39, 54.9%) were obtained. Fifty-one lung samples (82.3%) were abnormal: 19 (30.6%) showed proliferative diffuse alveolar damage (DAD), 12 (19.4%) presented exudative DAD, and 10 (16.1%) exhibited proliferative plus exudative DAD. Of the 46 lung samples tested for SARS-CoV-19 by RT-PCR, 39 (84.8%) were positive. DAD was associated with premortem values of lactate dehydrogenase of 400 U/L or higher [adjusted odds ratio (AOR) 21.73; 95% confidence interval (CI) 3.22–146] and treatment with tocilizumab (AOR 6.91; 95% CI 1.14–41.7). Proliferative DAD was associated with an onset-to-death interval of over 15 days (AOR 7.85, 95% CI 1.29–47.80). Twenty-three of the 48 (47.9%) heart samples were abnormal: all showed fiber hypertrophy, while 9 (18.8%) presented fibrosis. Of the liver samples, 29/39 (74.4%) were abnormal, due to steatosis (n = 12, 30.8%), cholestasis (n = 6, 15.4%) and lobular central necrosis (n = 5, 12.8%). Conclusion Proliferative DAD was the main finding on lung core needle necropsy in people who died from COVID-19; this finding was related to a longer disease course. Changes in the liver and heart were common.
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Affiliation(s)
- Jose-Manuel Ramos-Rincon
- Internal Medicine Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain.,Clinical Medicine Department, Miguel Hernandez University of Elche, Elche, Spain
| | - Cristian Herrera-García
- Internal Medicine Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Sandra Silva-Ortega
- Pathology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Julia Portilla-Tamarit
- Internal Medicine Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Cristina Alenda
- Pathology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain.,Pathology and Surgery Department, Miguel Hernández University of Elche, Elche, Spain
| | - Francisco-Angel Jaime-Sanchez
- Clinical Medicine Department, Miguel Hernandez University of Elche, Elche, Spain.,Intensive Care Unit, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Juan Arenas-Jiménez
- Pathology and Surgery Department, Miguel Hernández University of Elche, Elche, Spain.,Radiology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Francisca-Eugenia Fornés-Riera
- Anesthesiology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Alexander Scholz
- Internal Medicine Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Isabel Escribano
- Microbiology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Víctor Pedrero-Castillo
- Pathology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Carlos Muñoz-Miguelsanz
- Anesthesiology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Pedro Orts-Llinares
- Intensive Care Unit, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Ana Martí-Pastor
- Internal Medicine Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Antonio Amo-Lozano
- Internal Medicine Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Raquel García-Sevila
- Pneumology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Isabel Ribes-Mengual
- Internal Medicine Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Oscar Moreno-Perez
- Clinical Medicine Department, Miguel Hernandez University of Elche, Elche, Spain.,Endocrinology and Nutrition Department, Alicante Institute of Sanitary and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Luis Concepcion-Aramendía
- Radiology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Esperanza Merino
- Infectious Diseases Unit, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
| | - Rosario Sánchez-Martínez
- Internal Medicine Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain.,Clinical Medicine Department, Miguel Hernandez University of Elche, Elche, Spain
| | - Ignacio Aranda
- Pathology Department, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante General University Hospital, Alicante, Spain
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