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Xing X, Rodeo SA. Emerging roles of non-coding RNAs in fibroblast to myofibroblast transition and fibrotic diseases. Front Pharmacol 2024; 15:1423045. [PMID: 39114349 PMCID: PMC11303237 DOI: 10.3389/fphar.2024.1423045] [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: 04/25/2024] [Accepted: 07/01/2024] [Indexed: 08/10/2024] Open
Abstract
The transition of fibroblasts to myofibroblasts (FMT) represents a pivotal process in wound healing, tissue repair, and fibrotic diseases. This intricate transformation involves dynamic changes in cellular morphology, gene expression, and extracellular matrix remodeling. While extensively studied at the molecular level, recent research has illuminated the regulatory roles of non-coding RNAs (ncRNAs) in orchestrating FMT. This review explores the emerging roles of ncRNAs, including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), in regulating this intricate process. NcRNAs interface with key signaling pathways, transcription factors, and epigenetic mechanisms to fine-tune gene expression during FMT. Their functions are critical in maintaining tissue homeostasis, and disruptions in these regulatory networks have been linked to pathological fibrosis across various tissues. Understanding the dynamic roles of ncRNAs in FMT bears therapeutic promise. Targeting specific ncRNAs holds potential to mitigate exaggerated myofibroblast activation and tissue fibrosis. However, challenges in delivery and specificity of ncRNA-based therapies remain. In summary, ncRNAs emerge as integral regulators in the symphony of FMT, orchestrating the balance between quiescent fibroblasts and activated myofibroblasts. As research advances, these ncRNAs appear to be prospects for innovative therapeutic strategies, offering hope in taming the complexities of fibrosis and restoring tissue equilibrium.
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Affiliation(s)
- Xuewu Xing
- Department of Orthopaedics, Tianjin First Central Hospital, Tianjin, China
- Orthopedic Soft Tissue Research Program, Hospital for Special Surgery, New York, NY, United States
| | - Scott A. Rodeo
- Orthopedic Soft Tissue Research Program, Hospital for Special Surgery, New York, NY, United States
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Hernández-Díazcouder A, Romero-Nava R, Del-Río-Navarro BE, Sánchez-Muñoz F, Guzmán-Martín CA, Reyes-Noriega N, Rodríguez-Cortés O, Leija-Martínez JJ, Vélez-Reséndiz JM, Villafaña S, Hong E, Huang F. The Roles of MicroRNAs in Asthma and Emerging Insights into the Effects of Vitamin D 3 Supplementation. Nutrients 2024; 16:341. [PMID: 38337625 PMCID: PMC10856766 DOI: 10.3390/nu16030341] [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: 12/17/2023] [Revised: 01/11/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024] Open
Abstract
Asthma is one of the most common chronic non-communicable diseases worldwide, characterized by variable airflow limitation secondary to airway narrowing, airway wall thickening, and increased mucus resulting from chronic inflammation and airway remodeling. Current epidemiological studies reported that hypovitaminosis D is frequent in patients with asthma and is associated with worsening the disease and that supplementation with vitamin D3 improves asthma symptoms. However, despite several advances in the field, the molecular mechanisms of asthma have yet to be comprehensively understood. MicroRNAs play an important role in controlling several biological processes and their deregulation is implicated in diverse diseases, including asthma. Evidence supports that the dysregulation of miR-21, miR-27b, miR-145, miR-146a, and miR-155 leads to disbalance of Th1/Th2 cells, inflammation, and airway remodeling, resulting in exacerbation of asthma. This review addresses how these molecular mechanisms explain the development of asthma and its exacerbation and how vitamin D3 may modulate these microRNAs to improve asthma symptoms.
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Affiliation(s)
- Adrián Hernández-Díazcouder
- Laboratorio de Investigación de Obesidad y Asma, Hospital Infantil de México Federico Gómez, Ciudad de Mexico 06720, Mexico; (A.H.-D.); (N.R.-N.)
- Instituto Mexicano del Seguro Social, Hospital de Especialidades “Dr. Bernardo Sepúlveda Gutiérrez”, Unidad de Investigación Médica en Bioquímica, Ciudad de Mexico 06720, Mexico
| | - Rodrigo Romero-Nava
- Laboratorio de Señalización Intracelular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de Mexico 11340, Mexico; (R.R.-N.); (S.V.)
| | - Blanca E. Del-Río-Navarro
- Servicio de Alergia e Inmunología, Hospital Infantil de México Federico Gómez, Ciudad de Mexico 06720, Mexico;
| | - Fausto Sánchez-Muñoz
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de Mexico 14080, Mexico; (F.S.-M.); (C.A.G.-M.)
| | - Carlos A. Guzmán-Martín
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de Mexico 14080, Mexico; (F.S.-M.); (C.A.G.-M.)
| | - Nayely Reyes-Noriega
- Laboratorio de Investigación de Obesidad y Asma, Hospital Infantil de México Federico Gómez, Ciudad de Mexico 06720, Mexico; (A.H.-D.); (N.R.-N.)
- Servicio de Alergia e Inmunología, Hospital Infantil de México Federico Gómez, Ciudad de Mexico 06720, Mexico;
| | - Octavio Rodríguez-Cortés
- Laboratorio de Inflamación y Obesidad, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de Mexico 11340, Mexico;
| | - José J. Leija-Martínez
- Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78290, Mexico;
| | - Juan Manuel Vélez-Reséndiz
- Laboratorio Multidisciplinario de Nanomedicina y de Farmacología Cardiovascular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de Mexico 11340, Mexico;
| | - Santiago Villafaña
- Laboratorio de Señalización Intracelular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de Mexico 11340, Mexico; (R.R.-N.); (S.V.)
| | - Enrique Hong
- Departamento de Farmacobiología, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de Mexico 14330, Mexico;
| | - Fengyang Huang
- Laboratorio de Investigación de Obesidad y Asma, Hospital Infantil de México Federico Gómez, Ciudad de Mexico 06720, Mexico; (A.H.-D.); (N.R.-N.)
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Chen Z, Li C, Huang H, Shi YL, Wang X. Research Progress of Aging-related MicroRNAs. Curr Stem Cell Res Ther 2024; 19:334-350. [PMID: 36892029 DOI: 10.2174/1574888x18666230308111043] [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: 10/22/2022] [Revised: 01/02/2023] [Accepted: 01/11/2023] [Indexed: 03/10/2023]
Abstract
Senescence refers to the irreversible state in which cells enter cell cycle arrest due to internal or external stimuli. The accumulation of senescent cells can lead to many age-related diseases, such as neurodegenerative diseases, cardiovascular diseases, and cancers. MicroRNAs are short non-coding RNAs that bind to target mRNA to regulate gene expression after transcription and play an important regulatory role in the aging process. From nematodes to humans, a variety of miRNAs have been confirmed to alter and affect the aging process. Studying the regulatory mechanisms of miRNAs in aging can further deepen our understanding of cell and body aging and provide a new perspective for the diagnosis and treatment of aging-related diseases. In this review, we illustrate the current research status of miRNAs in aging and discuss the possible prospects for clinical applications of targeting miRNAs in senile diseases.
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Affiliation(s)
- Zhongyu Chen
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
| | - Chenxu Li
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
| | - Haitao Huang
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
| | - Yi-Ling Shi
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
| | - Xiaobo Wang
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
- Key Laboratory of University Cell Biology, Dali, Yunnan, 671000, China
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冯 璐, 翟 佳, 赵 金. [Medical visit status and clinical features in patients with IgG4 related disease]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2023; 55:1028-1032. [PMID: 38101784 PMCID: PMC10723999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Indexed: 12/17/2023]
Abstract
OBJECTIVE To understand the medical treatment and clinical characteristics of patients with IgG4-related disease (IgG4-RD) with complex clinical manifestations and easy to be misdiagnosed and missed, and to improve the recognition of this disease among doctors from relevant medical departments. METHODS A retrospective analysis was conducted on the medical records of patients diagnosed with IgG4-RD who were hospitalized and discharged from Peking University Third Hospital from January 1, 2012 to December 31, 2022. The patient' s medical visit status, clinical manifestations, laboratory examinations, diagnosis, and treatment information were summarized. RESULTS A total of 116 patients diagnosed with IgG4-RD were included in this study, with a male to female ratio of 2. 52∶ 1 and an average age of (61.83±10.80) years. The departments for initial visits were gastroenterology, general surgery, and ophthalmology. While the departments responsible for definitive diagnosis were gastroenterology, rheumatology and immunology, and respiratory medicine. Twenty-one patients (18. 10%) required consultation and treatment from three or more departments before receiving a definitive diagnosis. The median time from symptom onset to the initial clinic visit was 2 (1, 7) months, and the median time from symptom onset to diagnosis was 1 (1, 12) month. Twenty-four patients (20.69%) underwent surgical resection of the affected sites before diagnosis. According to the classification criteria of IgG4-RD, sixty-eight (58.62%) cases were diagnosed definitively, eight (6.9%) cases were likely to be diagnosed, and 40 (34.48%) cases were suspected to be diagnosed. In the 68 definitively diagnosed patients, the most commonly affected organs were submandibular gland, the pancreas, biliary tract, parotid in sequence. The median serum IgG4 (IgG4, immunoglobulin G4) level was 6.16 (3. 61, 12. 30) g/L. Fifty-seven patients (83.82%) were treated with glucocorticoids, and 14 patients (20.59%) were treated with immunosuppressants. The use of immunosuppressants was mainly in the rheumatology and immunology department (78. 57%). CONCLUSION IgG4-RD is more common in elderly males, with submandibular gland, the pancreas, biliary tract, and parotid being most commonly affected. The distribution of initial visit departments in patients is wide. The proportion of definitive diagnosis based on pathology is relatively low. In terms of treatment, the main approach is steroid treatment, while the use of immunosuppres-sants is not widespread.
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Affiliation(s)
- 璐 冯
- 北京大学第三医院风湿免疫科, 北京 100191Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
- 辽宁省健康产业集团本钢总医院风湿免疫科, 辽宁本溪 117000Department of Rheumatology and Immunology, Liaoning Health Industry Group Bengang General Hospital, Benxi 117000, Liaoning, China
| | - 佳羽 翟
- 北京大学第三医院风湿免疫科, 北京 100191Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
| | - 金霞 赵
- 北京大学第三医院风湿免疫科, 北京 100191Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing 100191, China
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李 文, 古 晓, 翁 锐, 刘 苏, 陈 超. [Expression and clinical significance of plasma exosomal miR-34-5p and miR-142-3p in systemic sclerosis]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2023; 55:1022-1027. [PMID: 38101783 PMCID: PMC10723983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Indexed: 12/17/2023]
Abstract
OBJECTIVE To detect the expression of plasma exosomal microRNA (miRNA) in systemic sclerosis (SSc), and to investigate its clinical significance. METHODS A total of 20 patients who were initially diagnosed with SSc and did not receive medication in Department of Rheumatology and Immunology of Meizhou People' s Hospital from January 2020 to January 2022 were recruited, as well as 15 healthy individuals whose gender and age matched with those of the SSc patients. Plasma exosomes were isolated using ultracentrifugation method. The expression levels of exosomal miR-34-5p, miR-92-3p and miR-142-3p were detected by quantative real-time polymerase chain reaction (qRT-PCR). Correlations between the expression levels of exosomal miRNAs and clinical characteristic were analyzed by Spearman's rank correlation coefficient test. RESULTS The mean age of 20 patients with SSc was (52.6±12.6) years, including 7 males and 13 females. Among the 20 SSc patients, 13 cases were diagnosed as limited cutaneous systemic sclerosis (lcSSc) and 7 cases were diagnosed as diffuse cutaneous systemic sclerosis (dcSSc) according to the extent of skin involvement. According to the findings of high resolution chest CT, 7 of 20 SSc patients were diagnosed with interstitial lung disease (ILD) and 13 SSc patients were diagnosed with non-ILD. The expression levels of exosomal miR-34-5p, miR-92-3p and miR-142-3p were significantly elevated in the SSc patients compared with those in the healthy controls group (P=0.003, P=0.000 1, and P=0.016, respectively). Compared with the SSc patients without ILD, the expression levels of miR-34-5p and miR-142-3p were significantly lower in the SSc patients with ILD (P=0.037 and P=0.015, respectively). The expression levels of exosomal miR-34-5p and miR-142-3p showed negative correlation with ILD (r=-0.48, P=0.031 and r=-0.55, P=0.011, respectively), and arthritis (r=-0.46, P=0.040 and r=-0.48, P=0.032, respectively). The expression levels of exosomal miR-142-3p showed a negative correlation with erythrocyte sedimentation rate (ESR) (r=-0.55, P=0.012). CONCLUSION Plasma exosomal miR-34-5p, miR-92-3p and miR-142-3p were dysregulated in SSc. The dyregulation of exosomal miR-34-5p and miR-142-3p showed correlation with SSc associated ILD (SSc-ILD).
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Affiliation(s)
- 文根 李
- 梅州市人民医院(黄塘医院)风湿免疫科,广东梅州 514031Department of Rheumatology and Immunology, Meizhou People's Hospital (Huangtang Hospital), Meizhou 514031, Guangdong, China
| | - 晓东 古
- 梅州市人民医院(黄塘医院)科研实验中心,广东梅州 514031Scientific Research and Experimental Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou 514031, Guangdong, China
| | - 锐强 翁
- 梅州市人民医院(黄塘医院)科研实验中心,广东梅州 514031Scientific Research and Experimental Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou 514031, Guangdong, China
| | - 苏东 刘
- 梅州市人民医院(黄塘医院)科研实验中心,广东梅州 514031Scientific Research and Experimental Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou 514031, Guangdong, China
| | - 超 陈
- 梅州市人民医院(黄塘医院)风湿免疫科,广东梅州 514031Department of Rheumatology and Immunology, Meizhou People's Hospital (Huangtang Hospital), Meizhou 514031, Guangdong, 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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Weidner J, Kolosionek E, Holmila R, Ax E, Garreau M, Gnerlich F, Olsson H, Czechtizky W, Vollmer S, Rydzik AM. Gymnotic uptake of AntimiRs alter microRNA-34a levels in 2D and 3D epithelial cell culture. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 33:898-907. [PMID: 37680982 PMCID: PMC10480572 DOI: 10.1016/j.omtn.2023.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/14/2023] [Indexed: 09/09/2023]
Abstract
MicroRNAs are attractive therapeutic targets in many diseases, including chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis. Among microRNA inhibitors antimiRs have been proven successful in lowering aberrant microRNA levels in the clinic. We present a set of antimiRs targeting miR-34a, which has been shown to be dysregulated in chronic lung diseases. The tool compounds were taken up by a bronchial epithelial cell line and primary human bronchial epithelial cells, followed by efficient knockdown of miR-34a. Similar results were observed in 3D differentiated primary human bronchial epithelial cells cultured at the air-liquid interface. Varying chemical properties of antimiRs had significant impact on cellular uptake and potency, resulting in effective tool compounds for use in lung-relevant cellular systems. This report demonstrates gymnotic antimiR uptake and activity in 3D epithelial cell culture after apical administration, mimicking inhalation conditions.
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Affiliation(s)
- Julie Weidner
- Translational Science Experimental Medicine, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Ewa Kolosionek
- Bioscience COPD/IPF, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Reetta Holmila
- Bioscience COPD/IPF, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Elisabeth Ax
- Translational Science Experimental Medicine, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Marion Garreau
- Medicinal Chemistry, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Felix Gnerlich
- Medicinal Chemistry, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Henric Olsson
- Translational Science Experimental Medicine, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Werngard Czechtizky
- Medicinal Chemistry, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Stefan Vollmer
- Bioscience COPD/IPF, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Anna M. Rydzik
- Medicinal Chemistry, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
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Nataliya B, Mikhail A, Vladimir P, Olga G, Maksim V, Ivan Z, Ekaterina N, Georgy S, Natalia D, Pavel M, Andrey C, Maria S, Maxim K, Anastasiya T, Uliana D, Zhanna A, Vsevolod T, Natalia K, Anastasiya E. Mesenchymal stromal cells facilitate resolution of pulmonary fibrosis by miR-29c and miR-129 intercellular transfer. Exp Mol Med 2023:10.1038/s12276-023-01017-w. [PMID: 37394579 PMCID: PMC10393964 DOI: 10.1038/s12276-023-01017-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/14/2023] [Accepted: 03/26/2023] [Indexed: 07/04/2023] Open
Abstract
To date, pulmonary fibrosis remains an unmet medical need. In this study, we evaluated the potency of mesenchymal stromal cell (MSC) secretome components to prevent pulmonary fibrosis development and facilitate fibrosis resolution. Surprisingly, the intratracheal application of extracellular vesicles (MSC-EVs) or the vesicle-depleted secretome fraction (MSC-SF) was not able to prevent lung fibrosis when applied immediately after the injury caused by bleomycin instillation in mice. However, MSC-EV administration induced the resolution of established pulmonary fibrosis, whereas the vesicle-depleted fraction did not. The application of MSC-EVs caused a decrease in the numbers of myofibroblasts and FAPa+ progenitors without affecting their apoptosis. Such a decrease likely occurred due to their dedifferentiation caused by microRNA (miR) transfer by MSC-EVs. Using a murine model of bleomycin-induced pulmonary fibrosis, we confirmed the contribution of specific miRs (miR-29c and miR-129) to the antifibrotic effect of MSC-EVs. Our study provides novel insights into possible antifibrotic therapy based on the use of the vesicle-enriched fraction of the MSC secretome.
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Affiliation(s)
- Basalova Nataliya
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation.
| | - Arbatskiy Mikhail
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Popov Vladimir
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Grigorieva Olga
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Vigovskiy Maksim
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Zaytsev Ivan
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Novoseletskaya Ekaterina
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Sagaradze Georgy
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Danilova Natalia
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
- Department of Clinical Pathology, Medical Research and Education Centre, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Malkov Pavel
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
- Department of Clinical Pathology, Medical Research and Education Centre, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Cherniaev Andrey
- Division of Fundamental Medicine of Federal State Budgetary Institution "Pulmonology Scientific Research Institute under Federal Medical and Biological Agency of Russian Federation", Moscow, Russian Federation
- Research Institute of Human Morphology, Moscow, Russian Federation
| | - Samsonova Maria
- Division of Fundamental Medicine of Federal State Budgetary Institution "Pulmonology Scientific Research Institute under Federal Medical and Biological Agency of Russian Federation", Moscow, Russian Federation
- Research Institute of Human Morphology, Moscow, Russian Federation
| | - Karagyaur Maxim
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Tolstoluzhinskaya Anastasiya
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Dyachkova Uliana
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Akopyan Zhanna
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Tkachuk Vsevolod
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Kalinina Natalia
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Efimenko Anastasiya
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russian Federation
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
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9
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Ruan P, Todd JL, Zhao H, Liu Y, Vinisko R, Soellner JF, Schmid R, Kaner RJ, Luckhardt TR, Neely ML, Noth I, Porteous M, Raj R, Safdar Z, Strek ME, Hesslinger C, Palmer SM, Leonard TB, Salisbury ML. Integrative multi-omics analysis reveals novel idiopathic pulmonary fibrosis endotypes associated with disease progression. Respir Res 2023; 24:141. [PMID: 37344825 PMCID: PMC10283254 DOI: 10.1186/s12931-023-02435-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 04/26/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) is characterized by the accumulation of extracellular matrix in the pulmonary interstitium and progressive functional decline. We hypothesized that integration of multi-omics data would identify clinically meaningful molecular endotypes of IPF. METHODS The IPF-PRO Registry is a prospective registry of patients with IPF. Proteomic and transcriptomic (including total RNA [toRNA] and microRNA [miRNA]) analyses were performed using blood collected at enrollment. Molecular data were integrated using Similarity Network Fusion, followed by unsupervised spectral clustering to identify molecular subtypes. Cox proportional hazards models tested the relationship between these subtypes and progression-free and transplant-free survival. The molecular subtypes were compared to risk groups based on a previously described 52-gene (toRNA expression) signature. Biological characteristics of the molecular subtypes were evaluated via linear regression differential expression and canonical pathways (Ingenuity Pathway Analysis [IPA]) over-representation analyses. RESULTS Among 232 subjects, two molecular subtypes were identified. Subtype 1 (n = 105, 45.3%) and Subtype 2 (n = 127, 54.7%) had similar distributions of age (70.1 +/- 8.1 vs. 69.3 +/- 7.6 years; p = 0.31) and sex (79.1% vs. 70.1% males, p = 0.16). Subtype 1 had more severe disease based on composite physiologic index (CPI) (55.8 vs. 51.2; p = 0.002). After adjusting for CPI and antifibrotic treatment at enrollment, subtype 1 experienced shorter progression-free survival (HR 1.79, 95% CI 1.28,2.56; p = 0.0008) and similar transplant-free survival (HR 1.30, 95% CI 0.87,1.96; p = 0.20) as subtype 2. There was little agreement in the distribution of subjects to the molecular subtypes and the risk groups based on 52-gene signature (kappa = 0.04, 95% CI= -0.08, 0.17), and the 52-gene signature risk groups were associated with differences in transplant-free but not progression-free survival. Based on heatmaps and differential expression analyses, proteins and miRNAs (but not toRNA) contributed to classification of subjects to the molecular subtypes. The IPA showed enrichment in pulmonary fibrosis-relevant pathways, including mTOR, VEGF, PDGF, and B-cell receptor signaling. CONCLUSIONS Integration of transcriptomic and proteomic data from blood enabled identification of clinically meaningful molecular endotypes of IPF. If validated, these endotypes could facilitate identification of individuals likely to experience disease progression and enrichment of clinical trials. TRIAL REGISTRATION NCT01915511.
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Affiliation(s)
- Peifeng Ruan
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - Jamie L Todd
- Duke Clinical Research Institute, Durham, NC, USA
- Duke University Medical Center, Durham, NC, USA
| | - Hongyu Zhao
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - Yi Liu
- Boehringer Ingelheim Pharmaceuticals, Inc, Ridgefield, CT, USA
| | - Richard Vinisko
- Boehringer Ingelheim Pharmaceuticals, Inc, Ridgefield, CT, USA
| | | | - Ramona Schmid
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | | | - Tracy R Luckhardt
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Megan L Neely
- Duke Clinical Research Institute, Durham, NC, USA
- Duke University Medical Center, Durham, NC, USA
| | - Imre Noth
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, VA, USA
| | - Mary Porteous
- Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Rishi Raj
- Stanford University School of Medicine, Stanford, CA, USA
| | | | - Mary E Strek
- Section of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, IL, USA
| | | | - Scott M Palmer
- Duke Clinical Research Institute, Durham, NC, USA
- Duke University Medical Center, Durham, NC, USA
| | | | - Margaret L Salisbury
- Department of Medicine, Vanderbilt University Medical Center, 1211 Medical Center Drive, 37232, Nashville, TN, USA.
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10
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Role of cellular senescence in inflammatory lung diseases. Cytokine Growth Factor Rev 2023; 70:26-40. [PMID: 36797117 DOI: 10.1016/j.cytogfr.2023.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/05/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023]
Abstract
Cellular senescence, a characteristic sign of aging, classically refers to permanent cell proliferation arrest and is a vital contributor to the pathogenesis of cancer and age-related illnesses. A lot of imperative scientific research has shown that senescent cell aggregation and the release of senescence-associated secretory phenotype (SASP) components can cause lung inflammatory diseases as well. In this study, the most recent scientific progress on cellular senescence and phenotypes was reviewed, including their impact on lung inflammation and the contributions of these findings to understanding the underlying mechanisms and clinical relevance of cell and developmental biology. Within a dozen pro-senescent stimuli, the irreparable DNA damage, oxidative stress, and telomere erosion are all crucial in the long-term accumulation of senescent cells, resulting in sustained inflammatory stress activation in the respiratory system. An emerging role for cellular senescence in inflammatory lung diseases was proposed in this review, followed by the identification of the main ambiguities, thus further understanding this event and the potential to control cellular senescence and pro-inflammatory response activation. In addition, novel therapeutic strategies for the modulation of cellular senescence that might help to attenuate inflammatory lung conditions and improve disease outcomes were also presented in this research.
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11
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Wan Y, Zhou T, Slevin E, Koyama S, Li X, Harrison K, Li T, Zhou B, Lorenzo SR, Zhang Y, Xu W, Klaunig JE, Wu C, Shetty AK, Huang CK, Meng F. Liver-specific deletion of microRNA-34a alleviates ductular reaction and liver fibrosis during experimental cholestasis. FASEB J 2023; 37:e22731. [PMID: 36583714 DOI: 10.1096/fj.202201453r] [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: 09/07/2022] [Revised: 12/05/2022] [Accepted: 12/13/2022] [Indexed: 12/31/2022]
Abstract
Primary sclerosing cholangitis (PSC) is a chronic liver disease characterized by inflammatory responses and fibrotic scar formation leading to cholestasis. Ductular reaction and liver fibrosis are typical liver changes seen in human PSC and cholestasis patients. The current study aimed to clarify the role of liver-specific microRNA-34a in the cholestasis-associated ductular reaction and liver fibrosis. We demonstrated that miR-34a expression was significantly increased in human PSC livers along with the enhanced ductular reaction, cellular senescence, and liver fibrosis. A liver-specific miR-34a knockout mouse was established by crossing floxed miR-34a mice with albumin-promoter-driven Cre mice. Bile duct ligation (BDL) induced liver injury characterized by necrosis, fibrosis, and immune cell infiltration. In contrast, liver-specific miR-34a knockout in BDL mice resulted in decreased biliary ductular pathology associated with the reduced cholangiocyte senescence and fibrotic responses. The miR-34a-mediated ductular reactions may be functioning through Sirt-1-mediated senescence and fibrosis. The hepatocyte-derived conditioned medium promoted LPS-induced fibrotic responses and senescence in cholangiocytes, and miR-34a inhibitor suppressed these effects, further supporting the involvement of paracrine regulation. In conclusion, we demonstrated that liver-specific miR-34a plays an important role in ductular reaction and fibrotic responses in a BDL mouse model of cholestatic liver disease.
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Affiliation(s)
- Ying Wan
- Department of Pathophysiology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Tianhao Zhou
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Elise Slevin
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Sachiko Koyama
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Xuedong Li
- Department of Pathophysiology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Kelly Harrison
- Department of Transplant Surgery, Baylor Scott & White Memorial Hospital, Temple, Texas, USA
| | - Tian Li
- Department of Pathophysiology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Bingru Zhou
- Department of Pathophysiology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | | | - Yudian Zhang
- Department of Pathophysiology, School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Wenjuan Xu
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - James E Klaunig
- Laboratory of Investigative Toxicology and Pathology, Department of Environmental and Occupational Health, Indiana School of Public Health, Indiana University, Bloomington, Indiana, USA
| | - Chaodong Wu
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas, USA
| | - Ashok K Shetty
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M College of Medicine, College Station, Texas, USA
| | - Chiung-Kuei Huang
- Department of Pathology & Laboratory Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Fanyin Meng
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA.,Richard L. Roudebush VA Medical Center, Indianapolis, Indiana, USA
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12
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Su M, Liu J, Wu X, Chen X, Xiao Q, Jiang N. Construction of a TFs-miRNA-mRNA network related to idiopathic pulmonary fibrosis. ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:78. [PMID: 36819574 PMCID: PMC9929790 DOI: 10.21037/atm-22-6161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/07/2023] [Indexed: 01/18/2023]
Abstract
Background The transcription factors (TFs)-microRNA (miRNA)-messenger RNA (mRNA) network plays an important role in a variety of diseases. However, the relationship between the TFs-miRNA-mRNA network and idiopathic pulmonary fibrosis (IPF) remains unclear. Methods The GSE110147 and GSE53845 datasets from the Gene Expression Omnibus (GEO) database were used to process differentially expressed genes (DEGs) analysis, gene set enrichment analysis (GSEA), weighted gene co-expression network analysis (WGCNA), as well as Gene ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. The GSE13316 dataset was used to perform differentially expressed miRNAs (DEMs) analysis and TFs prediction. Finally, a TFs-miRNA-mRNA network related to IPF was constructed, and its function was evaluated by Gene Ontology (GO) and KEGG analyses. Also, 19 TFs in the network were verified by quantitative real time polymerase chain reaction (qRT-PCR). Results Through our analysis, 53 DEMs and 2,630 DEGs were screened. The GSEA results suggested these genes were mainly related to protein digestion and absorption. The WGCNA results showed that these DEGs were divided into eight modules, and the GO and KEGG analyses results of blue module genes showed that these 86 blue module genes were mainly enriched in cilium assembly and cilium organization. Moreover, a TFs-miRNA-mRNA network comprising 25 TFs, 11 miRNAs, and 60 mRNAs was constructed. Ultimately, the functional enrichment analysis showed that the TFs-miRNA-mRNA network was mainly related to the cell cycle and the phosphatidylinositol 3 kinase-protein kinase B (PI3K-Akt) signaling pathway. Furthermore, experimental verification of the TFs showed that ARNTL, TRIM28, EZH2, BCOR, and ASXL1 were sufficiently up-regulated in the transforming growth factor (TGF)-β1 treatment groups, while BCL6, BHLHE40, FOXA1, and EGR1 were significantly down-regulated. Conclusions The novel TFs-miRNA-mRNA network that we constructed could provide new insights into the underlying molecular mechanisms of IPF. ARNTL, TRIM28, EZH2, BCOR, ASXL1, BCL6, BHLHE40, FOXA1, and EGR1 may play important roles in IPF and become effective biomarkers for diagnosis and treatment.
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Affiliation(s)
- Minhong Su
- Department of Respiratory and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Junfang Liu
- Department of Respiratory and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xiping Wu
- Department of Respiratory and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xin Chen
- Department of Respiratory and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qiang Xiao
- Department of Pulmonary and Critical Care Medicine, Shunde Hospital, Southern Medical University, Foshan, China
| | - Ning Jiang
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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13
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Senescence-Associated β-Galactosidase Detection in Pathology. Diagnostics (Basel) 2022; 12:diagnostics12102309. [PMID: 36291998 PMCID: PMC9599972 DOI: 10.3390/diagnostics12102309] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/08/2022] [Accepted: 09/21/2022] [Indexed: 11/22/2022] Open
Abstract
Activity of β-galactosidase at pH 6 is a classic maker of senescence in cellular biology. Cellular senescence, a state of highly stable cell cycle arrest, is often compared to apoptosis as an intrinsic tumor suppression mechanism. It is also thought that SA-β-gal is crucial in malignant cell transformation. High levels of senescence-associated β-galactosidase (SA-β-gal) can be found in cancer and benign lesions of various localizations making the enzyme a highly promising diagnostic marker for visualization of tumor margins and metastases. These findings facilitate the research of therapy induced senescence as a promising therapeutic strategy. In this review, we address the need to collect and analyze the bulk of clinical and biological data on SA-β-gal mechanisms of action to support wider implementation of this enzyme in medical diagnostics. The review will be of interest to pathologists, biologists, and biotechnologists investigating cellular senescence for purposes of regenerative medicine and oncology.
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14
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Non-coding RNA in idiopathic interstitial pneumonia and Covid-19 pulmonary fibrosis. Mol Biol Rep 2022; 49:11535-11546. [PMID: 36097114 PMCID: PMC9467421 DOI: 10.1007/s11033-022-07820-4] [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: 03/15/2022] [Revised: 07/20/2022] [Accepted: 07/24/2022] [Indexed: 12/02/2022]
Abstract
Pulmonary fibrosis is the key feature of majority of idiopathic interstitial pneumonias (IIPs) as well as many patients with post-COVID-19. The pathogenesis of pulmonary fibrosis is a complex molecular process that involves myriad of cells, proteins, genes, and regulatory elements. The non-coding RNA mainly miRNA, circRNA, and lncRNA are among the key regulators of many protein coding genes and pathways that are involved in pulmonary fibrosis. Identification and molecular mechanisms, by which these non-coding RNA molecules work, are crucial to understand the molecular basis of the disease. Additionally, elucidation of molecular mechanism could also help in deciphering a potential diagnostic/prognostic marker as well as therapeutic targets for IIPs and post-COVID-19 pulmonary fibrosis. In this review, we have provided the latest findings and discussed the role of these regulatory elements in the pathogenesis of pulmonary fibrosis associated with Idiopathic Interstitial Pneumonia and Covid-19.
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15
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Ghafouri-Fard S, Khoshbakht T, Hussen BM, Baniahmad A, Branicki W, Taheri M, Eghbali A. Emerging Role of Non-Coding RNAs in Senescence. Front Cell Dev Biol 2022; 10:869011. [PMID: 35865636 PMCID: PMC9294638 DOI: 10.3389/fcell.2022.869011] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 06/13/2022] [Indexed: 11/13/2022] Open
Abstract
Senescence is defined as a gradual weakening of functional features of a living organism. Cellular senescence is a process that is principally aimed to remove undesirable cells by prompting tissue remodeling. This process is also regarded as a defense mechanism induced by cellular damage. In the course of oncogenesis, senescence can limit tumor progression. However, senescence participates in the pathoetiology of several disorders such as fibrotic disorders, vascular disorders, diabetes, renal disorders and sarcopenia. Recent studies have revealed contribution of different classes of non-coding RNAs in the cellular senescence. Long non-coding RNAs, microRNAs and circular RNAs are three classes of these transcripts whose contributions in this process have been more investigated. In the current review, we summarize the available literature on the impact of these transcripts in the cellular senescence.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tayyebeh Khoshbakht
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
- Center of Research and Strategic Studies, Lebanese French University, Erbil, Iraq
| | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospitals, Jena, Germany
- *Correspondence: Aria Baniahmad, ; Mohammad Taheri, ; Ahmad Eghbali,
| | - Wojciech Branicki
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospitals, Jena, Germany
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Aria Baniahmad, ; Mohammad Taheri, ; Ahmad Eghbali,
| | - Ahmad Eghbali
- Anesthesiology Research Center, Mofid Children Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Aria Baniahmad, ; Mohammad Taheri, ; Ahmad Eghbali,
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16
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Zhou Y, Li H, Wang L. Mechanism of miR-34a in the metabolism of extracellular matrix in fibroblasts of stress urinary incontinence via Nampt-mediated autophagy. Cell Stress Chaperones 2022; 27:369-381. [PMID: 35666377 PMCID: PMC9346036 DOI: 10.1007/s12192-022-01278-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/12/2022] [Accepted: 05/15/2022] [Indexed: 01/03/2023] Open
Abstract
Stress urinary incontinence (SUI) is a troublesome hygienic problem that afflicts the female population and is associated with extracellular matrix (ECM). Herein, we investigated the effects of microRNA (miR)-34a on ECM metabolism in fibroblasts of SUI via mediating nicotinamide phosphoribosyl transferase (Nampt/NAmPRTase) and hope to find novel insights in the treatment of SUI. Firstly, the anterior vaginal wall tissues of SUI patients and the female vaginal wall fibroblasts (FVWFs) of non-SUI subjects were collected and identified. Then, FVWFs were treated with 10 ng/mL of interleukin 1 beta (IL-1β) to establish SUI cell models. Subsequently, miR-34a and Nampt expressions in both types of cells were detected via RT-qPCR. It was found that miR-34a was poorly expressed, while Nampt was highly expressed in SUI. Subsequently, IL-1β-treated FVWFs were transfected with miR-34a-mimic and pcDNA3.1-Nampt, respectively. Thereafter, RT-qPCR and Western blot detected that miR-34a overexpression increased COL1A, ACAN, and TIMP-1; decreased MMP-2 and MMP-9; and elevated LC3 II/I ratio, Beclin-1 expression, and the autophagosome number in IL-1β-treated FVWFs, while Nampt upregulation reversed the above outcomes. Then, dual-luciferase reporter gene assay detected that Nampt is a downstream target of miR-34a. Together, miR-34a overexpression promoted autophagy, inhibited ECM degradation in IL-1β-treated FVWFs, and ameliorated SUI via suppressing Nampt.
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Affiliation(s)
- Ying Zhou
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China
| | - Hongjuan Li
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China.
| | - Lu Wang
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China.
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17
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Zhao M, Qi Q, Liu S, Huang R, Shen J, Zhu Y, Chai J, Zheng H, Wu H, Liu H. MicroRNA-34a: A Novel Therapeutic Target in Fibrosis. Front Physiol 2022; 13:895242. [PMID: 35795649 PMCID: PMC9250967 DOI: 10.3389/fphys.2022.895242] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 05/30/2022] [Indexed: 12/26/2022] Open
Abstract
Fibrosis can occur in many organs, and severe cases leading to organ failure and death. No specific treatment for fibrosis so far. In recent years, microRNA-34a (miR-34a) has been found to play a role in fibrotic diseases. MiR-34a is involved in the apoptosis, autophagy and cellular senescence, also regulates TGF-β1/Smad signal pathway, and negatively regulates the expression of multiple target genes to affect the deposition of extracellular matrix and regulate the process of fibrosis. Some studies have explored the efficacy of miR-34a-targeted therapies for fibrotic diseases. Therefore, miR-34a has specific potential for the treatment of fibrosis. This article reviews the important roles of miR-34a in fibrosis and provides the possibility for miR-34a as a novel therapeutic target in fibrosis.
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Affiliation(s)
- Min Zhao
- Department of Acupuncture-Moxibustion, LongHua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qin Qi
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Shimin Liu
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Rong Huang
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiacheng Shen
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Zhu
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Jing Chai
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Handan Zheng
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Huangan Wu
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
- *Correspondence: Huangan Wu, ; Huirong Liu,
| | - Huirong Liu
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
- *Correspondence: Huangan Wu, ; Huirong Liu,
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Cheng Q, Chen M, Wang H, Chen X, Wu H, Du Y, Xue J. MicroRNA-27a-3p inhibits lung and skin fibrosis of systemic sclerosis by negatively regulating SPP1. Genomics 2022; 114:110391. [DOI: 10.1016/j.ygeno.2022.110391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 04/05/2022] [Accepted: 05/22/2022] [Indexed: 11/04/2022]
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19
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Hogan TB, Tiwari N, Nagaraja M, Shetty SK, Fan L, Shetty RS, Bhandary YP, Shetty S. Caveolin-1 peptide regulates p53-microRNA-34a feedback in fibrotic lung fibroblasts. iScience 2022; 25:104022. [PMID: 35330685 PMCID: PMC8938287 DOI: 10.1016/j.isci.2022.104022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 12/02/2021] [Accepted: 03/01/2022] [Indexed: 11/22/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a life-threatening disease resulting from dysregulated repair responses to lung injury. Excessive extracellular matrix deposition by expanding myofibroblasts and fibrotic lung fibroblasts (fLfs) has been implicated in the pathogenesis of PF, including IPF. We explored fLfs' microRNA-34a (miR-34a) expression from IPF tissues. Basal miR-34a levels were decreased with reduced binding of p53 to the promoter DNA and 3'UTR mRNA sequences. Overexpression of miR-34a in fLfs increased p53, PAI-1, and reduced pro-fibrogenic markers. The regulatory effects of miR-34a were altered by modifying the p53 expression. Precursor-miR-34a lung transduction reduced bleomycin-induced PF in wild-type mice. fLfs treated with caveolin-1 scaffolding domain peptide (CSP) or its fragment, CSP7, restored miR-34a, p53, and PAI-1. CSP/CSP7 reduced PDGFR-β and pro-fibrogenic markers, which was abolished in fLfs following blockade of miR-34a expression. These peptides failed to resolve PF in mice lacking miR-34a in fLfs, indicating miR-34a-p53-feedback induction required for anti-fibrotic effects.
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Affiliation(s)
- Taryn B. Hogan
- Texas Lung Injury Institute, Department of Medicine, University of Texas Health Science Center at Tyler, 11937 US Highway 271, Tyler, TX 75708, USA
| | - Nivedita Tiwari
- Texas Lung Injury Institute, Department of Medicine, University of Texas Health Science Center at Tyler, 11937 US Highway 271, Tyler, TX 75708, USA
| | - M.R. Nagaraja
- Texas Lung Injury Institute, Department of Medicine, University of Texas Health Science Center at Tyler, 11937 US Highway 271, Tyler, TX 75708, USA
| | - Shwetha K. Shetty
- Texas Lung Injury Institute, Department of Medicine, University of Texas Health Science Center at Tyler, 11937 US Highway 271, Tyler, TX 75708, USA
- Biochemistry, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
| | - Liang Fan
- Texas Lung Injury Institute, Department of Medicine, University of Texas Health Science Center at Tyler, 11937 US Highway 271, Tyler, TX 75708, USA
| | - Rashmi S. Shetty
- Texas Lung Injury Institute, Department of Medicine, University of Texas Health Science Center at Tyler, 11937 US Highway 271, Tyler, TX 75708, USA
| | - Yashodhar P. Bhandary
- Texas Lung Injury Institute, Department of Medicine, University of Texas Health Science Center at Tyler, 11937 US Highway 271, Tyler, TX 75708, USA
| | - Sreerama Shetty
- Texas Lung Injury Institute, Department of Medicine, University of Texas Health Science Center at Tyler, 11937 US Highway 271, Tyler, TX 75708, USA
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Soni DK, Biswas R. Role of Non-Coding RNAs in Post-Transcriptional Regulation of Lung Diseases. Front Genet 2021; 12:767348. [PMID: 34819948 PMCID: PMC8606426 DOI: 10.3389/fgene.2021.767348] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/25/2021] [Indexed: 12/16/2022] Open
Abstract
Non-coding RNAs (ncRNAs), notably microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), have recently gained increasing consideration because of their versatile role as key regulators of gene expression. They adopt diverse mechanisms to regulate transcription and translation, and thereby, the function of the protein, which is associated with several major biological processes. For example, proliferation, differentiation, apoptosis, and metabolic pathways demand fine-tuning for the precise development of a specific tissue or organ. The deregulation of ncRNA expression is concomitant with multiple diseases, including lung diseases. This review highlights recent advances in the post-transcriptional regulation of miRNAs and lncRNAs in lung diseases such as asthma, chronic obstructive pulmonary disease, cystic fibrosis, and idiopathic pulmonary fibrosis. Further, we also discuss the emerging role of ncRNAs as biomarkers as well as therapeutic targets for lung diseases. However, more investigations are required to explore miRNAs and lncRNAs interaction, and their function in the regulation of mRNA expression. Understanding these mechanisms might lead to early diagnosis and the development of novel therapeutics for lung diseases.
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Affiliation(s)
- Dharmendra Kumar Soni
- Department of Anatomy, Physiology and Genetics, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Roopa Biswas
- Department of Anatomy, Physiology and Genetics, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
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21
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Wicher SA, Roos BB, Teske JJ, Fang YH, Pabelick C, Prakash YS. Aging increases senescence, calcium signaling, and extracellular matrix deposition in human airway smooth muscle. PLoS One 2021; 16:e0254710. [PMID: 34324543 PMCID: PMC8321097 DOI: 10.1371/journal.pone.0254710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/01/2021] [Indexed: 12/23/2022] Open
Abstract
Lung function declines as people age and their lungs become stiffer. With an increasing elderly population, understanding mechanisms that contribute to these structural and functional changes in the aging lung is important. Part of the aging process is characterized by thicker, more fibrotic airways, and senile emphysema caused by changes in lung parenchyma. There is also senescence, which occurs throughout the body with aging. Here, using human airway smooth muscle (ASM) cells from patients in different age groups, we explored senescence pathways and changes in intracellular calcium signaling and extracellular matrix (ECM) deposition to elucidate potential mechanisms by which aging leads to thicker and stiffer lungs. Senescent markers p21, γH2AX, and β-gal, and some senescence-associated secretory proteins (SASP) increased with aging, as shown by staining and biochemical analyses. Agonist-induced intracellular Ca2+ responses, measured using fura-2 loaded cells and fluorescence imaging, increased with age. However, biochemical analysis showed that expression of the following markers decreased with age: M3 muscarinic receptor, TRPC3, Orai1, STIM1, SERCA2, MMP2 and MMP9. In contrast, collagen III, and fibronectin deposition increased with age. These data show that senescence increases in the aging airways that is associated with a stiffer but surprisingly greater intracellular calcium signaling as a marker for contractility. ASM senescence may enhance fibrosis in a feed forward loop promoting remodeling and altered calcium storage and buffering.
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Affiliation(s)
- Sarah A. Wicher
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
| | - Benjamin B. Roos
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
| | - Jacob J. Teske
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
| | - Yun Hua Fang
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States of America
| | - Christina Pabelick
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States of America
| | - Y. S. Prakash
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States of America
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22
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Perkins TN, Oury TD. The perplexing role of RAGE in pulmonary fibrosis: causality or casualty? Ther Adv Respir Dis 2021; 15:17534666211016071. [PMID: 34275342 PMCID: PMC8293846 DOI: 10.1177/17534666211016071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal lung disease in which most patients die within 3 years of diagnosis. With an unknown etiology, IPF results in progressive fibrosis of the lung parenchyma, diminishing normal lung function, which results in respiratory failure, and eventually, death. While few therapies are available to reduce disease progression, patients continue to advance toward respiratory failure, leaving lung transplantation the only viable option for survival. As incidence and mortality rates steadily increase, the need for novel therapeutics is imperative. The receptor for advanced glycation endproducts (RAGE) is most highly expressed in the lungs and plays a significant role in a number of chronic lung diseases. RAGE has long been linked to IPF; however, confounding data from both human and experimental studies have left an incomplete and perplexing story. This review examines the present understanding of the role of RAGE in human and experimental models of IPF, drawing parallels to recent advances in RAGE biology. Moreover, this review discusses the role of RAGE in lung injury response, type 2 immunity, and cellular senescence, and how such mechanisms may relate to RAGE as both a biomarker of disease progression and potential therapeutic target in IPF.The reviews of this paper are available via the supplemental material section.
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Affiliation(s)
- Timothy N Perkins
- Department of Pathology, University of Pittsburgh School of Medicine, 3550 Terrace Street, S-784 Scaife Hall, Pittsburgh, PA 15261, USA
| | - Tim D Oury
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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23
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Pi C, Ma C, Wang H, Sun H, Yu X, Gao X, Yang Y, Sun Y, Zhang H, Shi Y, Li Y, Li Y, He X. MiR-34a suppression targets Nampt to ameliorate bone marrow mesenchymal stem cell senescence by regulating NAD +-Sirt1 pathway. Stem Cell Res Ther 2021; 12:271. [PMID: 33957971 PMCID: PMC8101138 DOI: 10.1186/s13287-021-02339-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/19/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Expansion-mediated replicative senescence and age-related natural senescence have adverse effects on mesenchymal stem cell (MSC) regenerative capability and functionality, thus severely impairing the extensive applications of MSC-based therapies. Emerging evidences suggest that microRNA-34a (miR-34a) has been implicated in the process of MSC senescence; however, the molecular mechanisms with regard to how miR-34a influencing MSC senescence remain largely undetermined. METHODS MiR-34a expression in MSCs was evaluated utilizing RT-qPCR. The functional effects of miR-34a exerting on MSC senescence were investigated via gene manipulation. Relevant gene and protein expression levels were analyzed by RT-qPCR and western blot. Luciferase reporter assays were applied to confirm that Nampt is a direct target of miR-34a. The underlying regulatory mechanism of miR-34a targeting Nampt in MSC senescence was further explored by measuring intracellular NAD+ content, NAD+/NADH ratio and Sirt1 activity. RESULTS In contrast to Nampt expression, miR-34a expression incremented in senescent MSCs. MiR-34a overexpression in young MSCs resulted in senescence-associated characteristics as displayed by senescence-like morphology, prolonged cell proliferation, declined osteogenic differentiation potency, heightened senescence-associated-β-galactosidase activity, and upregulated expression levels of the senescence-associated factors. Conversely, miR-34a suppression in replicative senescent and natural senescent MSCs contributed to diminished senescence-related phenotypic features. We identified Nampt as a direct target gene of miR-34a. In addition, miR-34a repletion resulted in prominent reductions in Nampt expression levels, NAD+ content, NAD+/NADH ratio, and Sirt1 activity, whereas anti-miR-34a treatment exerted the opposite effects. Furthermore, miR-34a-mediated MSC senescence was evidently rescued following the co-treatment with Nampt overexpression. CONCLUSION This study identifies a significant role of miR-34a playing in MSC replicative senescence and natural senescence via targeting Nampt and further mediating by NAD+-Sirt1 pathway, carrying great implications for optimal strategies for MSC therapeutic applications.
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Affiliation(s)
- Chenchen Pi
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, Jilin Province, People's Republic of China.,The First Hospital, and Institute of Immunology, Jilin University, Changchun, 130021, China
| | - Cao Ma
- Department of Pathology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, China
| | - Huan Wang
- Department of Pathology, The First Affiliated Hospital, Henan University of Chinese Medicine, Henan, 450000, China
| | - Hui Sun
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, Jilin Province, People's Republic of China
| | - Xiao Yu
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, Jilin Province, People's Republic of China
| | - Xingyu Gao
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, Jilin Province, People's Republic of China
| | - Yue Yang
- Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, 610072, China
| | - Yanan Sun
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, Jilin Province, People's Republic of China
| | - Haiying Zhang
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, Jilin Province, People's Republic of China
| | - Yingai Shi
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, Jilin Province, People's Republic of China
| | - Yan Li
- Division of Orthopedics and Biotechnology, Department for Clinical Intervention and Technology (CLINTEC), Karolinska Institute, Stockholm, Sweden
| | - Yulin Li
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, Jilin Province, People's Republic of China
| | - Xu He
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xin Min Street, Changchun, Jilin Province, People's Republic of China.
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24
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Liu Y, Nie H, Ding Y, Hou Y, Mao K, Cui Y. MiRNA, a New Treatment Strategy for Pulmonary Fibrosis. Curr Drug Targets 2021; 22:793-802. [PMID: 32988351 DOI: 10.2174/1874609813666200928141822] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/21/2020] [Accepted: 08/21/2020] [Indexed: 11/22/2022]
Abstract
Pulmonary fibrosis (PF) is the most common chronic, progressive interstitial lung disease, mainly occurring in the elderly, with a median survival of 2-4 years after diagnosis. Its high mortality rate attributes to the delay in diagnosis due to its generic symptoms, and more importantly, to the lack of effective treatments. MicroRNAs (miRNAs) are a class of small non-coding RNAs that are involved in many essential cellular processes, including extracellular matrix remodeling, alveolar epithelial cell apoptosis, epithelial-mesenchymal transition, etc. We summarized the dysregulated miRNAs in TGF-β signaling pathway-mediated PF in recent years with dual effects, such as anti-fibrotic let-7 family and pro-fibrotic miR-21 members. Therefore, this review will set out the latest application of miRNAs to provide a new direction for PF treatment.
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Affiliation(s)
- Yanhong Liu
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Hongguang Nie
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Yan Ding
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Yapeng Hou
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Kejun Mao
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Yong Cui
- Department of Anesthesiology, the First Affiliated Hospital of China Medical University, Shenyang, China
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25
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Lee JS, La J, Aziz S, Dobrinskikh E, Brownell R, Jones KD, Achtar-Zadeh N, Green G, Elicker BM, Golden JA, Matthay MA, Kukreja J, Schwartz DA, Wolters PJ. Molecular markers of telomere dysfunction and senescence are common findings in the usual interstitial pneumonia pattern of lung fibrosis. Histopathology 2021; 79:67-76. [PMID: 33432658 PMCID: PMC8195814 DOI: 10.1111/his.14334] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/07/2021] [Accepted: 01/09/2021] [Indexed: 12/20/2022]
Abstract
AIMS Idiopathic pulmonary fibrosis (IPF) is a genetically mediated, age-associated, progressive form of pulmonary fibrosis characterised pathologically by a usual interstitial pneumonia (UIP) pattern of fibrosis. The UIP pattern is also found in pulmonary fibrosis attributable to clinical diagnoses other than IPF (non-IPF UIP), whose clinical course is similarly poor, suggesting common molecular drivers. This study investigates whether IPF and non-IPF UIP lungs similarly express markers of telomere dysfunction and senescence. METHODS AND RESULTS To test whether patients with IPF and non-IPF UIP share molecular drivers, lung tissues from 169 IPF patients and 57 non-IPF UIP patients were histopathologically and molecularly compared. Histopathological changes in both IPF and non-IPF UIP patients included temporal heterogeneity, microscopic honeycombing, fibroblast foci, and dense collagen fibrosis. Non-IPF UIP lungs were more likely to have lymphocytic infiltration, non-caseating granulomas, airway-centred inflammation, or small airways disease. Telomeres were shorter in alveolar type II (AECII) cells of both IPF and non-IPF UIP lungs than in those of age-similar, unused donor, controls. Levels of molecular markers of senescence (p16 and p21) were elevated in lysates of IPF and non-IPF UIP lungs. Immunostaining localised expression of these proteins to AECII cells. The mucin 5B (MUC5B) gene promoter variant minor allele frequency was similar between IPF and non-IPF UIP patients, and MUC5B expression was similar in IPF and non-IPF UIP lungs. CONCLUSIONS Molecular markers of telomere dysfunction and senescence are pathologically expressed in both IPF and non-IPF UIP lungs. These findings suggest that common molecular drivers may contribute to the pathogenesis of UIP-associated pulmonary fibrosis, regardless of the clinical diagnosis.
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Affiliation(s)
- Joyce S Lee
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Denver, CO, USA
| | - Janet La
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, San Francisco, CA, USA
| | - Sara Aziz
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, San Francisco, CA, USA
| | - Evgenia Dobrinskikh
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Denver, CO, USA
| | - Robert Brownell
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, San Francisco, CA, USA
| | - Kirk D Jones
- Department of Pathology, University of California, San Francisco, CA, USA
| | - Natalia Achtar-Zadeh
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, San Francisco, CA, USA
| | - Gary Green
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, San Francisco, CA, USA
| | - Brett M Elicker
- Department of Radiology, University of California, San Francisco, CA, USA
| | - Jeffrey A Golden
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, San Francisco, CA, USA
| | - Michael A Matthay
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, San Francisco, CA, USA
| | - Jasleen Kukreja
- Department of Surgery, University of California, San Francisco, CA, USA
| | - David A Schwartz
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Denver, CO, USA
| | - Paul J Wolters
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Denver, CO, USA
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26
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Zhang H, Song M, Guo J, Ma J, Qiu M, Yang Z. The function of non-coding RNAs in idiopathic pulmonary fibrosis. Open Med (Wars) 2021; 16:481-490. [PMID: 33817326 PMCID: PMC8005778 DOI: 10.1515/med-2021-0231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 01/20/2021] [Accepted: 01/20/2021] [Indexed: 12/12/2022] Open
Abstract
Non-coding ribonucleic acids (ncRNAs) are a diverse group of RNA molecules that are mostly not translated into proteins after transcription, including long non-coding RNAs (lncRNAs) with longer than 200 nucleotides non-coding transcripts and microRNAs (miRNAs) which are only 18–22 nucleotides. As families of evolutionarily conserved ncRNAs, lncRNAs activate and repress genes via a variety of mechanisms at both transcriptional and translational levels, whereas miRNAs regulate protein-coding gene expression mainly through mRNA silencing. ncRNAs are widely involved in biological functions, such as proliferation, differentiation, migration, angiogenesis, and apoptosis. Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease with a poor prognosis. The etiology of IPF is still unclear. Increasing evidence shows the close correlations between the development of IPF and aberrant expressions of ncRNAs than thought previously. In this study, we provide an overview of ncRNAs participated in pathobiology of IPF, seeking the early diagnosis biomarker and aiming for potential therapeutic applications for IPF.
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Affiliation(s)
- Hui Zhang
- Department of Cardiovascular Diseases, First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, China
| | - Miao Song
- Department of Cardiovascular Diseases, First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, China.,Department of Pharmacy, Baotou Medical College, Baotou, Inner Mongolia, China
| | - Jianing Guo
- Comfort Medical Center, Central hospital of Ulanqab, Ulanqab, Inner Mongolia, China
| | - Junbing Ma
- Department of Cardiovascular Diseases, First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, China
| | - Min Qiu
- Department of Cardiovascular Diseases, First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, China.,Department of Pharmacy, Baotou Medical College, Baotou, Inner Mongolia, China
| | - Zheng Yang
- Department of Cardiovascular Diseases, First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, China
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27
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Cui H, Xie N, Banerjee S, Ge J, Jiang D, Dey T, Matthews QL, Liu RM, Liu G. Lung Myofibroblasts Promote Macrophage Profibrotic Activity through Lactate-induced Histone Lactylation. Am J Respir Cell Mol Biol 2021; 64:115-125. [PMID: 33074715 DOI: 10.1165/rcmb.2020-0360oc] [Citation(s) in RCA: 126] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Augmented glycolysis due to metabolic reprogramming in lung myofibroblasts is critical to their profibrotic phenotype. The primary glycolysis byproduct, lactate, is also secreted into the extracellular milieu, together with which myofibroblasts and macrophages form a spatially restricted site usually described as fibrotic niche. Therefore, we hypothesized that myofibroblast glycolysis might have a non-cell autonomous effect through lactate regulating the pathogenic phenotype of alveolar macrophages. Here, we demonstrated that there was a markedly increased lactate in the conditioned media of TGF-β1 (transforming growth factor-β1)-induced lung myofibroblasts and in the BAL fluids (BALFs) from mice with TGF-β1- or bleomycin-induced lung fibrosis. Importantly, the media and BALFs promoted profibrotic mediator expression in macrophages. Mechanistically, lactate induced histone lactylation in the promoters of the profibrotic genes in macrophages, consistent with the upregulation of this epigenetic modification in these cells in the fibrotic lungs. The lactate inductions of the histone lactylation and profibrotic gene expression were mediated by p300, as evidenced by their diminished concentrations in p300-knockdown macrophages. Collectively, our study establishes that in addition to protein, lipid, and nucleic acid molecules, a metabolite can also mediate intercellular regulations in the setting of lung fibrosis. Our findings shed new light on the mechanism underlying the key contribution of myofibroblast glycolysis to the pathogenesis of lung fibrosis.
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Affiliation(s)
- Huachun Cui
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Na Xie
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Sami Banerjee
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Jing Ge
- Department of Geriatrics and Institute of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dingyuan Jiang
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China; and
| | - Tapan Dey
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Qiana L Matthews
- Department of Biological Sciences, Alabama State University, Montgomery, Alabama
| | - Rui-Ming Liu
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Gang Liu
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
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28
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Omote N, Sauler M. Non-coding RNAs as Regulators of Cellular Senescence in Idiopathic Pulmonary Fibrosis and Chronic Obstructive Pulmonary Disease. Front Med (Lausanne) 2020; 7:603047. [PMID: 33425948 PMCID: PMC7785852 DOI: 10.3389/fmed.2020.603047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/09/2020] [Indexed: 12/14/2022] Open
Abstract
Cellular senescence is a cell fate implicated in the pathogenesis of idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD). Cellular senescence occurs in response to cellular stressors such as oxidative stress, DNA damage, telomere shortening, and mitochondrial dysfunction. Whether these stresses induce cellular senescence or an alternative cell fate depends on the type and magnitude of cellular stress, but also on intrinsic factors regulating the cellular stress response. Non-coding RNAs, including both microRNAs and long non-coding RNAs, are key regulators of cellular stress responses and susceptibility to cellular senescence. In this review, we will discuss cellular mechanisms that contribute to senescence in IPF and COPD and highlight recent advances in our understanding of how these processes are influenced by non-coding RNAs. We will also discuss the potential therapeutic role for targeting non-coding RNAs to treat these chronic lung diseases.
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Affiliation(s)
- Norihito Omote
- Pulmonary, Critical Care and Sleep Medicine Section, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - Maor Sauler
- Pulmonary, Critical Care and Sleep Medicine Section, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, United States
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29
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Zhang L, Tong X, Huang J, Wu M, Zhang S, Wang D, Liu S, Fan H. Fisetin Alleviated Bleomycin-Induced Pulmonary Fibrosis Partly by Rescuing Alveolar Epithelial Cells From Senescence. Front Pharmacol 2020; 11:553690. [PMID: 33381023 PMCID: PMC7768023 DOI: 10.3389/fphar.2020.553690] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 10/26/2020] [Indexed: 02/05/2023] Open
Abstract
Idiopathic pulmonary fibrosis is an aging-associated disease, satisfactory therapies are not yet available. Accelerated senescence of alveolar epithelial cells plays an important part in Idiopathic pulmonary fibrosis pathogenesis. Fisetin (FIS) is a natural non-toxic flavonoid, which has many pharmacological functions. However, the role of FIS in pulmonary fibrosis has not been established. In this study, we found that FIS treatment apparently alleviated BLM-induced weight loss, inflammatory cells infiltration, inflammatory factors expression, collagen deposition and alveolar epithelial cell senescence, along with AMPK activation and the down regulation of NF-κB and TGF-β/Smad3 in vivo. In vitro, FIS administration significantly inhibited the senescence of alveolar epithelial cells and senescence-associated secretory phenotype, followed by reduced transdifferentiation of fibroblasts to myofibroblasts as well as collagen deposition in fibroblasts, which was blocked by an AMPK inhibitor, Compound C. Together, these results suggest that FIS can alleviate the development of BLM-induced pulmonary fibrosis, which is related to the inhibition of TGF-β/Smad3 signaling and the reduction of alveolar epithelium cell senescence by regulating AMPK/NF-κB signaling pathway. FIS may be a promising candidate for patients with pulmonary fibrosis.
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Affiliation(s)
- Li Zhang
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Chengdu, China
| | - Xiang Tong
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Chengdu, China
| | - Jizhen Huang
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Chengdu, China
| | - Man Wu
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Chengdu, China
| | - Shijie Zhang
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Chengdu, China
| | - Dongguang Wang
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Chengdu, China
| | - SiTong Liu
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Chengdu, China
| | - Hong Fan
- Department of Respiratory and Critical Care Medicine, West China Hospital/West China School of Medicine, Chengdu, China
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30
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Lin Y, Xu Z. Fibroblast Senescence in Idiopathic Pulmonary Fibrosis. Front Cell Dev Biol 2020; 8:593283. [PMID: 33324646 PMCID: PMC7723977 DOI: 10.3389/fcell.2020.593283] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/31/2020] [Indexed: 12/13/2022] Open
Abstract
Aging is an inevitable and complex natural phenomenon due to the increase in age. Cellular senescence means a non-proliferative but viable cellular physiological state. It is the basis of aging, and it exists in the body at any time point. Idiopathic pulmonary fibrosis (IPF) is an interstitial fibrous lung disease with unknown etiology, characterized by irreversible destruction of lung structure and function. Aging is one of the most critical risk factors for IPF, and extensive epidemiological data confirms IPF as an aging-related disease. Senescent fibroblasts in IPF show abnormal activation, telomere shortening, metabolic reprogramming, mitochondrial dysfunction, apoptosis resistance, autophagy deficiency, and senescence-associated secretory phenotypes (SASP). These characteristics of senescent fibroblasts establish a close link between cellular senescence and IPF. The treatment of senescence-related molecules and pathways is continually emerging, and using senolytics eliminating senescent fibroblasts is also actively tried as a new therapy for IPF. In this review, we discuss the roles of aging and cellular senescence in IPF. In particular, we summarize the signaling pathways through which senescent fibroblasts influence the occurrence and development of IPF. On this basis, we further talk about the current treatment ideas, hoping this paper can be used as a helpful reference for future researches.
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Affiliation(s)
- Yifan Lin
- Department of Respiratory and Critical Care Medicine, The Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu, China
| | - Zhihao Xu
- Department of Respiratory and Critical Care Medicine, The Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu, China
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Jiang D, Cui H, Xie N, Banerjee S, Liu RM, Dai H, Thannickal VJ, Liu G. ATF4 Mediates Mitochondrial Unfolded Protein Response in Alveolar Epithelial Cells. Am J Respir Cell Mol Biol 2020; 63:478-489. [PMID: 32551949 DOI: 10.1165/rcmb.2020-0107oc] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Although endoplasmic reticulum (ER) unfolded protein response (UPRER) is well known, mitochondrial unfolded protein response (UPRmt) has not been recognized in alveolar epithelial cells. Furthermore, ER stress and mitochondrial dysfunction are frequently encountered in alveolar epithelial cells from an array of lung disorders. However, these two scenarios have been often regarded as separate mechanisms contributing to the pathogeneses. It is unclear whether there is interplay between these two phenomena or an integrator that couples these two signaling cascades in the stressed alveolar epithelial cells from those pathologies. In this study, we defined UPRmt in alveolar epithelial cells and identified ATF4 (activating transcription factor 4), but not ATF5, as the key regulator of UPRmt. We found that UPRER led to UPRmt and mitochondrial dysfunction in an ATF4-dependent manner. In contrast, mitochondrial stresses did not activate UPRER. We found that alveolar epithelial ATF4 and UPRmt were induced in aged mice with experimental pulmonary fibrosis as well as in patients with idiopathic pulmonary fibrosis. Finally, we found that the inducible expression of ATF4 in mouse alveolar epithelial cells aggravated pulmonary UPRmt, lung inflammation, body weight loss, and death upon bleomycin-induced lung injury. In conclusion, ER stress induces ATF4-dependent UPRmt and mitochondrial dysfunction, indicating a novel mechanism by which ER stress contributes to the pathogeneses of a variety of pulmonary disorders.
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Affiliation(s)
- Dingyuan Jiang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Huachun Cui
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Na Xie
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Sami Banerjee
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Rui-Ming Liu
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Huaping Dai
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Victor J Thannickal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Gang Liu
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and
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Falagan-Lotsch P, Murphy CJ. Network-based analysis implies critical roles of microRNAs in the long-term cellular responses to gold nanoparticles. NANOSCALE 2020; 12:21172-21187. [PMID: 32990715 PMCID: PMC7606723 DOI: 10.1039/d0nr04701e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Since gold nanoparticles (AuNPs) have great potential to bring improvements to the biomedical field, their impact on biological systems should be better understood, particularly over the long term, using realistic doses of exposure. MicroRNAs (miRNAs) are small noncoding RNAs that play key roles in the regulation of biological pathways, from development to cellular stress responses. In this study, we performed genome-wide miRNA expression profiling in primary human dermal fibroblasts 20 weeks after chronic and acute (non-chronic) treatments to four AuNPs with different shapes and surface chemistries at a low dose. The exposure condition and AuNP surface chemistry had a significant impact on the modulation of miRNA levels. In addition, a network-based analysis was employed to provide a more complex, systems-level perspective of the miRNA expression changes. In response to the stress caused by AuNPs, miRNA co-expression networks perturbed in cells under non-chronic exposure to AuNPs were enriched for target genes implicated in the suppression of proliferative pathways, possibly in attempt to restore cell homeostasis, while changes in miRNA co-expression networks enriched for target genes related to activation of proliferative and suppression of apoptotic pathways were observed in cells chronically exposed to one specific type of AuNPs. In this case, miRNA dysregulation might be contributing to enforce a new cell phenotype during stress. Our findings suggest that miRNAs exert critical roles in the cellular responses to the stress provoked by a low dose of NPs in the long term and provide a fertile ground for further targeted experimental studies.
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Affiliation(s)
| | - Catherine J. Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801
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Abstract
INTRODUCTION Myofibroblasts are the primary executor and influencer in lung fibrosis. Latest studies on lung myofibroblast pathobiology have significantly advanced the understanding of the pathogenesis of lung fibrosis and shed new light on strategies targeting these cells to treat this disease. AREAS COVERED This article reviewed the most recent progresses, mainly within the last 5 years, on the definition, origin, activity regulation, and targeting of lung myofibroblasts in lung fibrosis. We did a literature search on PubMed using the keywords below from the dates 2010 to 2020. EXPERT OPINION With the improved cell lineage characterization and the advent of scRNA-seq, the field is having much better picture of the lung myofibroblast origin and mesenchymal heterogeneity. Additionally, cellular metabolism has emerged as a key regulation of lung myofibroblast pathogenic phenotype and is a promising therapeutic target for treating a variety of lung fibrotic disorders.
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Affiliation(s)
- Dingyuan Jiang
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital; National Clinical Research Center for Respiratory Diseases , Beijing, China
| | - Tapan Dey
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham , Birmingham, Alabama, USA
| | - Gang Liu
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham , Birmingham, Alabama, USA
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Gopu V, Fan L, Shetty RS, Nagaraja M, Shetty S. Caveolin-1 scaffolding domain peptide regulates glucose metabolism in lung fibrosis. JCI Insight 2020; 5:137969. [PMID: 32841217 PMCID: PMC7566714 DOI: 10.1172/jci.insight.137969] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 08/20/2020] [Indexed: 12/26/2022] Open
Abstract
Increased metabolism distinguishes myofibroblasts or fibrotic lung fibroblasts (fLfs) from the normal lung fibroblasts (nLfs). The mechanism of metabolic activation in fLfs has not been fully elucidated. Furthermore, the antifibrogenic effects of caveolin-1 scaffolding domain peptide CSP/CSP7 involving metabolic reprogramming in fLfs are unclear. We therefore analyzed lactate and succinate levels, as well as the expression of glycolytic enzymes and hypoxia inducible factor-1α (HIF-1α). Lactate and succinate levels, as well as the basal expression of glycolytic enzymes and HIF-1α, were increased in fLfs. These changes were reversed following restoration of p53 or its transcriptional target microRNA-34a (miR-34a) expression in fLfs. Conversely, inhibition of basal p53 or miR-34a increased glucose metabolism, glycolytic enzymes, and HIF-1α in nLfs. Treatment of fLfs or mice having bleomycin- or Ad-TGF-β1-induced lung fibrosis with CSP/CSP7 reduced the expression of glycolytic enzymes and HIF-1α. Furthermore, inhibition of p53 or miR-34a abrogated CSP/CSP7-mediated restoration of glycolytic flux in fLfs in vitro and in mice with pulmonary fibrosis and lacking p53 or miR-34a expression in fibroblasts in vivo. Our data indicate that dysregulation of glucose metabolism in fLfs is causally linked to loss of basal expression of p53 and miR-34a. Treatment with CSP/CSP7 constrains aberrant glucose metabolism through restoration of p53 and miR-34a.
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Bartoszewski R, Dabrowski M, Jakiela B, Matalon S, Harrod KS, Sanak M, Collawn JF. SARS-CoV-2 may regulate cellular responses through depletion of specific host miRNAs. Am J Physiol Lung Cell Mol Physiol 2020; 319:L444-L455. [PMID: 32755307 DOI: 10.1152/ajplung.00252.2020] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cold viruses have generally been considered fairly innocuous until the appearance of the severe acute respiratory coronavirus 2 (SARS-CoV-2) in 2019, which caused the coronavirus disease 2019 (COVID-19) global pandemic. Two previous viruses foreshadowed that a coronavirus could potentially have devastating consequences in 2002 [severe acute respiratory coronavirus (SARS-CoV)] and in 2012 [Middle East respiratory syndrome coronavirus (MERS-CoV)]. The question that arises is why these viruses are so different from the relatively harmless cold viruses. On the basis of an analysis of the current literature and using bioinformatic approaches, we examined the potential human miRNA interactions with the SARS-CoV-2's genome and compared the miRNA target sites in seven coronavirus genomes that include SARS-CoV-2, MERS-CoV, SARS-CoV, and four nonpathogenic coronaviruses. Here, we discuss the possibility that pathogenic human coronaviruses, including SARS-CoV-2, could modulate host miRNA levels by acting as miRNA sponges to facilitate viral replication and/or to avoid immune responses.
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Affiliation(s)
- Rafal Bartoszewski
- Department of Biology and Pharmaceutical Botany, Medical University of Gdansk, Gdansk, Poland
| | - Michal Dabrowski
- Laboratory of Bioinformatics, Nencki Institute of Experimental Biology of the Polish Academy of Sciences, Warsaw, Poland
| | - Bogdan Jakiela
- Department of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Sadis Matalon
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Kevin S Harrod
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Marek Sanak
- Department of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - James F Collawn
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
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Kato K, Logsdon NJ, Shin YJ, Palumbo S, Knox A, Irish JD, Rounseville SP, Rummel SR, Mohamed M, Ahmad K, Trinh JM, Kurundkar D, Knox KS, Thannickal VJ, Hecker L. Impaired Myofibroblast Dedifferentiation Contributes to Nonresolving Fibrosis in Aging. Am J Respir Cell Mol Biol 2020; 62:633-644. [PMID: 31962055 DOI: 10.1165/rcmb.2019-0092oc] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a fatal age-associated disease with no cure. Although IPF is widely regarded as a disease of aging, the cellular mechanisms that contribute to this age-associated predilection remain elusive. In this study, we sought to evaluate the consequences of senescence on myofibroblast cell fate and fibrotic responses to lung injury in the context of aging. We demonstrated that nonsenescent lung myofibroblasts maintained the capacity for dedifferentiation, whereas senescent/IPF myofibroblasts exhibited an impaired capacity for dedifferentiation. We previously demonstrated that the transcription factor MyoD acts as a critical switch in the differentiation and dedifferentiation of myofibroblasts. Here, we demonstrate that decreased levels of MyoD preceded myofibroblast dedifferentiation and apoptosis susceptibility in nonsenescent cells, whereas MyoD expression remained elevated in senescent/IPF myofibroblasts, which failed to undergo dedifferentiation and demonstrated resistance to apoptosis. Genetic strategies to silence MyoD restored the susceptibility of IPF myofibroblasts to undergo apoptosis and led to a partial reversal of age-associated persistent fibrosis in vivo. The capacity for myofibroblast dedifferentiation and subsequent apoptosis may be critical for normal physiologic responses to tissue injury, whereas restricted dedifferentiation and apoptosis resistance in senescent cells may underlie the progressive nature of age-associated human fibrotic disorders. These studies support the concept that senescence may promote profibrotic effects via impaired myofibroblast dedifferentiation and apoptosis resistance, which contributes to myofibroblast accumulation and ultimately persistent fibrosis in aging.
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Affiliation(s)
- Kosuke Kato
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Naomi J Logsdon
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Yoon-Joo Shin
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Sunny Palumbo
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Adam Knox
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Joseph D Irish
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Skye P Rounseville
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Sydney R Rummel
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Mohamed Mohamed
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Kareem Ahmad
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Johnny M Trinh
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Deepali Kurundkar
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona
| | - Kenneth S Knox
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Arizona College of Medicine-Phoenix, Phoenix, Arizona
| | - Victor J Thannickal
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.,Birmingham VA Medical Center, Birmingham, Alabama; and
| | - Louise Hecker
- Division of Pulmonary, Allergy and Critical Care and Sleep Medicine, University of Arizona, Tucson, Arizona.,Southern Arizona VA Health Care System, Tucson, Arizona
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Korfei M, MacKenzie B, Meiners S. The ageing lung under stress. Eur Respir Rev 2020; 29:29/156/200126. [DOI: 10.1183/16000617.0126-2020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 06/22/2020] [Indexed: 01/10/2023] Open
Abstract
Healthy ageing of the lung involves structural changes but also numerous cell-intrinsic and cell-extrinsic alterations. Among them are the age-related decline in central cellular quality control mechanisms such as redox and protein homeostasis. In this review, we would like to provide a conceptual framework of how impaired stress responses in the ageing lung, as exemplified by dysfunctional redox and protein homeostasis, may contribute to onset and progression of COPD and idiopathic pulmonary fibrosis (IPF). We propose that age-related imbalanced redox and protein homeostasis acts, amongst others (e.g.cellular senescence), as a “first hit” that challenges the adaptive stress-response pathways of the cell, increases the level of oxidative stress and renders the lung susceptible to subsequent injury and disease. In both COPD and IPF, additional environmental insults such as smoking, air pollution and/or infections then serve as “second hits” which contribute to persistently elevated oxidative stress that overwhelms the already weakened adaptive defence and repair pathways in the elderly towards non-adaptive, irremediable stress thereby promoting development and progression of respiratory diseases. COPD and IPF are thus distinct horns of the same devil, “lung ageing”.
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Ortiz-Quintero B, Buendía-Roldán I, Ramírez-Salazar EG, Balderas-Martínez YI, Ramírez-Rodríguez SL, Martínez-Espinosa K, Selman M. Circulating microRNA Signature Associated to Interstitial Lung Abnormalities in Respiratory Asymptomatic Subjects. Cells 2020; 9:E1556. [PMID: 32604783 PMCID: PMC7348836 DOI: 10.3390/cells9061556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/16/2020] [Accepted: 06/24/2020] [Indexed: 02/07/2023] Open
Abstract
Interstitial lung abnormalities (ILA) are observed in around 9% of older respiratory asymptomatic subjects, mainly smokers. Evidence suggests that ILA may precede the development of interstitial lung diseases and may evolve to progressive fibrosis. Identifying biomarkers of this subclinical status is relevant for early diagnosis and to predict outcome. We aimed to identify circulating microRNAs (miRNAs) associated to ILA in a cohort of respiratory asymptomatic subjects older than 60 years. We identified 81 subjects with ILA from our Lung-Aging Program in Mexico City (n = 826). We randomly selected 112 subjects without ILA (Ctrl) from the same cohort. Using polymerase chain reaction PCR-Array technology (24 ILA and 24 Ctrl, screening cohort) and reverse-transcriptase quantitative polymerase chain reaction (RT-qPCR) (57 ILA and 88 Ctr, independent validation cohort) we identified seven up-regulated miRNAs in serum of ILA compared to Ctrl (miR-193a-5p, p < 0.0001; miR-502-3p, p < 0.0001; miR-200c-3p, p = 0.003; miR-16-5p, p = 0.003; miR-21-5p, p = 0.002; miR-126-3p, p = 0.004 and miR-34a-5p, p < 0.005). Pathways regulated by these miRNAs include transforming growth factor beta (TGF-β), Wnt, mammalian target of rapamycin (mTOR), Insulin, mitogen-activated protein kinase (MAPK) signaling, and senescence. Receiver operator characteristic (ROC) curve analysis indicated that miR-193a-5p (area under the curve AUC: 0.75) and miR-502-3p (AUC 0.71) have acceptable diagnostic value. This is the first identification of circulating miRNAs associated to ILA in respiratory asymptomatic subjects, providing potential non-invasive biomarkers and molecular targets to better understand the pathogenic mechanisms associated to ILA.
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Affiliation(s)
- Blanca Ortiz-Quintero
- Unidad de Investigación, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas. Calzada de Tlalpan 4502, Colonia Sección XVI, Mexico City 14080, Mexico; (I.B.-R.); (Y.IB.-M.); (S.L.R.-R.); (K.M.-E.)
| | - Ivette Buendía-Roldán
- Unidad de Investigación, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas. Calzada de Tlalpan 4502, Colonia Sección XVI, Mexico City 14080, Mexico; (I.B.-R.); (Y.IB.-M.); (S.L.R.-R.); (K.M.-E.)
| | - Eric Gustavo Ramírez-Salazar
- Laboratorio de Genómica del Metabolismo Óseo, Instituto Nacional de Medicina Genómica, Periférico Sur 4809, Arenal Tepepan, Tlalpan, Mexico City 14610, Mexico;
| | - Yalbi I Balderas-Martínez
- Unidad de Investigación, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas. Calzada de Tlalpan 4502, Colonia Sección XVI, Mexico City 14080, Mexico; (I.B.-R.); (Y.IB.-M.); (S.L.R.-R.); (K.M.-E.)
| | - Sandra Lizbeth Ramírez-Rodríguez
- Unidad de Investigación, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas. Calzada de Tlalpan 4502, Colonia Sección XVI, Mexico City 14080, Mexico; (I.B.-R.); (Y.IB.-M.); (S.L.R.-R.); (K.M.-E.)
| | - Karen Martínez-Espinosa
- Unidad de Investigación, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas. Calzada de Tlalpan 4502, Colonia Sección XVI, Mexico City 14080, Mexico; (I.B.-R.); (Y.IB.-M.); (S.L.R.-R.); (K.M.-E.)
| | - Moisés Selman
- Unidad de Investigación, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas. Calzada de Tlalpan 4502, Colonia Sección XVI, Mexico City 14080, Mexico; (I.B.-R.); (Y.IB.-M.); (S.L.R.-R.); (K.M.-E.)
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miRNAs in Lung Development and Diseases. Int J Mol Sci 2020; 21:ijms21082765. [PMID: 32316149 PMCID: PMC7216056 DOI: 10.3390/ijms21082765] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/11/2020] [Accepted: 04/12/2020] [Indexed: 02/07/2023] Open
Abstract
The development of the lung involves a diverse group of molecules that regulate cellular processes, organ formation, and maturation. The various stages of lung development are marked by accumulation of small RNAs that promote or repress underlying mechanisms, depending on the physiological environment in utero and postnatally. To some extent, the pathogenesis of various lung diseases is regulated by small RNAs. In this review, we discussed miRNAs regulation of lung development and diseases, that is, COPD, asthma, pulmonary fibrosis, and pulmonary arterial hypertension, and also highlighted possible connotations for human lung health.
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Liu RM, Liu G. Cell senescence and fibrotic lung diseases. Exp Gerontol 2020; 132:110836. [PMID: 31958492 PMCID: PMC7036279 DOI: 10.1016/j.exger.2020.110836] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 12/14/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive fatal lung disorder with an unknown etiology and very limited therapeutic options. The incidence and severity of IPF increase with advanced age, suggesting that aging is a major risk factor for IPF. The mechanism underlying the aging-related susceptibility to IPF, however, remains unclear. Cellular senescence, a permanent arrest of cell growth, has been increasingly recognized as an important contributor to aging and aging-related diseases, including IPF. Senescent cells have been identified in IPF lungs and in experimental lung fibrosis models. Removal of senescent cells pharmacologically or genetically improves lung function and reverses pulmonary fibrosis induced by different stimuli in experimental fibrosis models. Treatment with senolytic drugs also improves clinical symptoms in IPF patients. These intriguing findings suggest that cellular senescence contributes importantly to the pathogenesis of fibrotic lung diseases and targeting senescent cells may represent a novel approach for the treatment of fibrotic lung disorders. In this mini review, we summarize the recent advance in the field regarding the role of cellular senescence in fibrotic lung diseases, with a focus on IPF.
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Affiliation(s)
- Rui-Ming Liu
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Gang Liu
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
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Forefront: MiR-34a-Knockout Mice with Wild Type Hematopoietic Cells, Retain Persistent Fibrosis Following Lung Injury. Int J Mol Sci 2020; 21:ijms21062228. [PMID: 32210149 PMCID: PMC7139923 DOI: 10.3390/ijms21062228] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/15/2020] [Accepted: 03/19/2020] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRs) are known to limit gene expression at the post-transcriptional level and have important roles in the pathogenesis of various conditions, including acute lung injury (ALI) and fibrotic diseases such as idiopathic pulmonary fibrosis (IPF). In this study, we found increased levels of miR-34 at times of fibrosis resolution following injury, in myofibroblasts from Bleomycin-treated mouse lungs, which correlates with susceptibility to cell death induced by immune cells. On the contrary, a substantial downregulation of miR-34 was detected at stages of evolution, when fibroblasts resist cell death. Concomitantly, we found an inverse correlation between miR-34 levels with that of the survival molecule FLICE-like inhibitory protein (FLIP) in lung myofibroblasts from humans with IPF and the experimental model. Forced upregulation of miR-34 with miR-34 mimic in human IPF fibrotic-lung myofibroblasts led to decreased cell survival through downregulation of FLIP. Using chimeric miR-34 knock-out (KO)-C57BL/6 mice with miR34KO myofibroblasts but wild-type (WT) hematopoietic cells, we found, in contrast to WT mice, increased and persistent FLIP levels with a more severe fibrosis and with no signs of resolution as detected in pathology and collagen accumulation. Moreover, a mimic of miR-34a decreased FLIP expression and susceptibility to cell death was regained in miR-34KO fibroblasts. Through this study, we show for the first time an inverse correlation between miR-34a and FLIP expression in myofibroblasts, which affects survival, and accumulation in lung fibrosis. Reprogramming fibrotic-lung myofibroblasts to regain susceptibility to cell-death by specifically increasing their miR34a and downregulating FLIP, may be a useful strategy, enabling tissue regeneration following lung injury.
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Wang Y, Xiao H, Zhao F, Li H, Gao R, Yan B, Ren J, Yang J. Decrypting the crosstalk of noncoding RNAs in the progression of IPF. Mol Biol Rep 2020; 47:3169-3179. [PMID: 32180083 DOI: 10.1007/s11033-020-05368-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 02/29/2020] [Indexed: 12/16/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is an agnogenic, rare, and lethal disease, with high mortality and poor prognosis and a median survival time as short as 3 to 5 years after diagnosis. No effective therapeutic drugs are still not available not only in clinical practice, but also in preclinical phases. To better and deeper understand pulmonary fibrosis will provide more effective strategies for therapy. Mounting evidence suggests that noncoding RNAs (ncRNAs) and their interactions may contribute to lung fibrosis; however, the mechanisms underlying their roles are largely unknown. In this review, we systematically summarized the recent advances regarding the crucial roles of long non-coding RNAs (lncRNAs), microRNAs (miRNAs), and circular RNAs (circRNAs) and crosstalk among them in the development of IPF. The perspective for related genes was well highlighted. In summary, ncRNA and their interactions play a key regulatory part in the progression of IPF and are bound to provide us with new diagnostic and therapeutic targets.
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Affiliation(s)
- Yujuan Wang
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Han Xiao
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Fenglian Zhao
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Han Li
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Rong Gao
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Bingdi Yan
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Jin Ren
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Junling Yang
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, China.
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Waters DW, Blokland KEC, Pathinayake PS, Wei L, Schuliga M, Jaffar J, Westall GP, Hansbro PM, Prele CM, Mutsaers SE, Bartlett NW, Burgess JK, Grainge CL, Knight DA. STAT3 Regulates the Onset of Oxidant-induced Senescence in Lung Fibroblasts. Am J Respir Cell Mol Biol 2020; 61:61-73. [PMID: 30608861 DOI: 10.1165/rcmb.2018-0328oc] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease of unknown cause with a median survival of only 3 years. Other investigators and we have shown that fibroblasts derived from IPF lungs display characteristics of senescent cells, and that dysregulated activation of the transcription factor signal transducer and activator of transcription 3 (STAT3) correlates with IPF progression. The question of whether STAT3 activation is involved in fibroblast senescence remains unanswered. We hypothesized that inhibiting STAT3 activation after oxidant-induced senescence would attenuate characteristics of the senescent phenotype. We aimed to characterize a model of oxidant-induced senescence in human lung fibroblasts and to determine the effect of inhibiting STAT3 activity on the development of senescence. Exposing human lung fibroblasts to 150 μM hydrogen peroxide (H2O2) resulted in increased senescence-associated β-galactosidase content and expression of p21 and IL-6, all of which are features of senescence. The shift into senescence was accompanied by an increase of STAT3 translocation to the nucleus and mitochondria. Additionally, Seahorse analysis provided evidence of increased mitochondrial respiration characterized by increased basal respiration, proton leak, and an associated increase in superoxide (O2-) production in senescent fibroblasts. Targeting STAT3 activity using the small-molecule inhibitor STA-21 attenuated IL-6 production, reduced p21 levels, decreased senescence-associated β-galactosidase accumulation, and restored normal mitochondrial function. The results of this study illustrate that stress-induced senescence in lung fibroblasts involves the activation of STAT3, which can be pharmacologically modulated.
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Affiliation(s)
- David W Waters
- 1 School of Biomedical Sciences and Pharmacy and.,2 National Health and Medical Research Council Centre of Research Excellence in Pulmonary Fibrosis, Camperdown, Australia
| | - Kaj E C Blokland
- 1 School of Biomedical Sciences and Pharmacy and.,2 National Health and Medical Research Council Centre of Research Excellence in Pulmonary Fibrosis, Camperdown, Australia.,3 Department of Pathology and Medical Biology, and.,4 Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Lan Wei
- 1 School of Biomedical Sciences and Pharmacy and
| | | | - Jade Jaffar
- 6 Allergy, Immunology and Respiratory Medicine, Alfred Hospital, Prahran, Australia; and
| | - Glen P Westall
- 5 School of Medicine and Public Health, University of Newcastle, Callaghan, Australia
| | | | - Cecilia M Prele
- 7 Centre for Cell Therapy and Regenerative Medicine, School of Biomedical Sciences, and.,8 Institute for Respiratory Health, University of Western Australia, Nedlands, Australia
| | - Steven E Mutsaers
- 7 Centre for Cell Therapy and Regenerative Medicine, School of Biomedical Sciences, and.,8 Institute for Respiratory Health, University of Western Australia, Nedlands, Australia
| | | | | | - Christopher L Grainge
- 5 School of Medicine and Public Health, University of Newcastle, Callaghan, Australia
| | - Darryl A Knight
- 1 School of Biomedical Sciences and Pharmacy and.,2 National Health and Medical Research Council Centre of Research Excellence in Pulmonary Fibrosis, Camperdown, Australia
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44
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Hamsanathan S, Alder JK, Sellares J, Rojas M, Gurkar AU, Mora AL. Cellular Senescence: The Trojan Horse in Chronic Lung Diseases. Am J Respir Cell Mol Biol 2020; 61:21-30. [PMID: 30965013 DOI: 10.1165/rcmb.2018-0410tr] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Senescence is a cell fate decision characterized by irreversible arrest of proliferation accompanied by a senescence-associated secretory phenotype. Traditionally, cellular senescence has been recognized as a beneficial physiological mechanism during development and wound healing and in tumor suppression. However, in recent years, evidence of negative consequences of cellular senescence has emerged, illuminating its role in several chronic pathologies. In this context, senescent cells persist or accumulate and have detrimental consequences. In this review, we discuss the possibility that in chronic obstructive pulmonary disease, persistent senescence impairs wound healing in the lung caused by secretion of proinflammatory senescence-associated secretory phenotype factors and exhaustion of progenitor cells. In contrast, in idiopathic pulmonary fibrosis, chronic senescence in alveolar epithelial cells exacerbates the accumulation of senescent fibroblasts together with production of extracellular matrix. We review how cellular senescence may contribute to lung disease pathology.
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Affiliation(s)
| | - Jonathan K Alder
- 2 Division of Pulmonary Allergy and Critical Care Medicine, and.,3 Dorothy P. and Richard P. Simmons Center for Interstitial Lung Diseases
| | - Jacobo Sellares
- 4 Interstitial Lung Disease Program, Servei de Pneumologia, Hospital Clínic Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain.,5 Centro de Investigaciones Biomedicas en Red-Enfermedades Respiratorias (CibeRes CB06/06/0028), Instituto de Salud Carlos III, Barcelona, Spain; and
| | - Mauricio Rojas
- 2 Division of Pulmonary Allergy and Critical Care Medicine, and.,3 Dorothy P. and Richard P. Simmons Center for Interstitial Lung Diseases.,6 McGowan Institute of Regenerative Medicine, and
| | - Aditi U Gurkar
- 1 Aging Institute.,7 Division of Geriatric Medicine, Department of Medicine.,8 Geriatric Research Education and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania
| | - Ana L Mora
- 1 Aging Institute.,2 Division of Pulmonary Allergy and Critical Care Medicine, and.,9 Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
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45
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Hinz B, Lagares D. Evasion of apoptosis by myofibroblasts: a hallmark of fibrotic diseases. Nat Rev Rheumatol 2020; 16:11-31. [PMID: 31792399 PMCID: PMC7913072 DOI: 10.1038/s41584-019-0324-5] [Citation(s) in RCA: 302] [Impact Index Per Article: 75.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2019] [Indexed: 12/15/2022]
Abstract
Organ fibrosis is a lethal outcome of autoimmune rheumatic diseases such as systemic sclerosis. Myofibroblasts are scar-forming cells that are ultimately responsible for the excessive synthesis, deposition and remodelling of extracellular matrix proteins in fibrosis. Advances have been made in our understanding of the mechanisms that keep myofibroblasts in an activated state and control myofibroblast functions. However, the mechanisms that help myofibroblasts to persist in fibrotic tissues remain poorly understood. Myofibroblasts evade apoptosis by activating molecular mechanisms in response to pro-survival biomechanical and growth factor signals from the fibrotic microenvironment, which can ultimately lead to the acquisition of a senescent phenotype. Growing evidence suggests that myofibroblasts and senescent myofibroblasts, rather than being resistant to apoptosis, are actually primed for apoptosis owing to concomitant activation of cell death signalling pathways; these cells are poised to apoptose when survival pathways are inhibited. This knowledge of apoptotic priming has paved the way for new therapies that trigger apoptosis in myofibroblasts by blocking pro-survival mechanisms, target senescent myofibroblast for apoptosis or promote the reprogramming of myofibroblasts into scar-resolving cells. These novel strategies are not only poised to prevent progressive tissue scarring, but also have the potential to reverse established fibrosis and to regenerate chronically injured tissues.
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Affiliation(s)
- Boris Hinz
- Laboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - David Lagares
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
- Fibrosis Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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46
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Exosomal miRNA Let-7 from Menstrual Blood-Derived Endometrial Stem Cells Alleviates Pulmonary Fibrosis through Regulating Mitochondrial DNA Damage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4506303. [PMID: 31949877 PMCID: PMC6948326 DOI: 10.1155/2019/4506303] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/19/2019] [Accepted: 11/25/2019] [Indexed: 01/16/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a prototype of chronic, progressive, and fibrotic lung disease with high morbidity and high mortality. Menstrual blood-derived stem cells (MenSCs) have proven to be an attractive tool for the treatment of acute lung injury and fibrosis-related diseases through immunosuppression and antifibrosis. However, whether MenSC-derived exosomes have the similar function on pulmonary fibrosis remains unclear. In the present study, exosomes secreted from MenSCs (MenSCs-Exo) were verified by transmission electron microscope (TEM), nanoparticle tracking analyzer (NTA), and western blotting. And MenSC-Exo addition significantly improved BLM-induced lung fibrosis and alveolar epithelial cell damage in mice, mainly reflected in BLM-mediated enhancement of the fibrosis score, blue collagen deposition, dry/wet gravity ratio, hydroxyproline and malondialdehyde levels, and downregulation of glutathione peroxidase, which were all robustly reversed by MenSC-Exo management. Additionally, BLM- and TGF-β1-evoked cellular reactive oxygen species (ROS), mitochondrial DNA (mtDNA) damage, and cell apoptosis were rescued by MenSCs-Exo in vivo and in vitro. Further study indicated that the MenSCs-Exo could transport miRNA Let-7 into recipient alveolar epithelial cells. Let-7 inhibitor administration significantly blocked the exosome-mediated improvement role on lung fibrosis in mice. Mechanistically, Let-7 was able to regulate the expression of lectin-like oxidized low-density lipoprotein receptor-1 (LOX1) through binding to its 3′-UTR region. Forced expression of LOX1 promoted the expression of apoptosis-related protein and mtDNA damage markers via regulating NLRP3 which was also confirmed in BLM model mice under the combination therapy of the exosome and Let-7 inhibitor. Collectively, this study demonstrates that exosomal Let-7 from MenSCs remits pulmonary fibrosis through regulating ROS, mtDNA damage, and NLRP3 inflammasome activation. This provides a new approach of exocytosis on the treatment of fibrotic lung disease.
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47
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Velasco-Torres Y, Ruiz-López V, Pérez-Bautista O, Buendía-Roldan I, Ramírez-Venegas A, Pérez-Ramos J, Falfán-Valencia R, Ramos C, Montaño M. miR-34a in serum is involved in mild-to-moderate COPD in women exposed to biomass smoke. BMC Pulm Med 2019; 19:227. [PMID: 31775690 PMCID: PMC6882367 DOI: 10.1186/s12890-019-0977-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 10/31/2019] [Indexed: 02/08/2023] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is characterized by persistent respiratory symptoms and airflow limitation that is due to airway and/or alveolar abnormalities. The main causes of COPD are Gene-environment interactions associated with tobacco smoking (COPD-TS) and biomass smoke (COPD-BS). It is well know that microRNAs (miRNAs) participate in the control of post-transcriptional regulation and are involved in COPD-TS; nevertheless, those miRNAS are participating in the COPD-BS are unidentified. Thus, we studied which miRNAs are involved in COPD-BS (GOLD stages I–II). Methods In the screening phase, the profile of the miRNAs was analyzed in serum samples (n = 3) by means of a PCR array. Subsequently, the miRNAs were validated with RT-qPCR (n = 25) in the corresponding study groups. Additionally, the serum concentration of Notch1 was measured comparing COPD-BS vs COPD-TS. Results miR-34a was down-regulated in COPD- BS vs COPD-TS. In the other study groups, three miRNAs were differentially expressed: miR-374a was down-regulated in COPD-BS vs C, miR-191-5p was up-regulated in COPD-BS vs H-BS, and miR-21-5p was down-regulated in COPD-TS compared to the C group. Moreover, the serum concentration of Notch1, one of the targets of miR-34a, was increased in COPD-BS compared to women with COPD-TS. Conclusions This is the first study in patients with COPD due to biomass that demonstrates miRNA expression differences between patients. The observations support the concept that COPD by biomass has a different phenotype than COPD due to tobacco smoking, which could have important implications for the treatment of these diseases.
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Affiliation(s)
- Yadira Velasco-Torres
- Department of Biological Systems, Autonomous Metropolitan University-Xochimilco (UAM-X), Mexico City, Mexico.,Biological and Health Sciences, Autonomous Metropolitan University-Xochimilco (UAM-X), Mexico City, Mexico
| | | | | | - Ivette Buendía-Roldan
- Laboratory of Translational Research in Aging and Pulmonary Fibrosis, Mexico City, Mexico
| | | | - Julia Pérez-Ramos
- Department of Biological Systems, Autonomous Metropolitan University-Xochimilco (UAM-X), Mexico City, Mexico
| | - Ramcés Falfán-Valencia
- Laboratory of HLA, National Institute of Respiratory Diseases Ismael Cosio Villegas (INER), Calzada de Tlalpan 4502, Col Section XVI, C.P. 14080, Tlalpan, Mexico City, Mexico
| | - Carlos Ramos
- Laboratory of Cell Biology, Department of Research in Pulmonary Fibrosis, Mexico City, Mexico.
| | - Martha Montaño
- Laboratory of Cell Biology, Department of Research in Pulmonary Fibrosis, Mexico City, Mexico.
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48
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Penke LR, Peters-Golden M. Molecular determinants of mesenchymal cell activation in fibroproliferative diseases. Cell Mol Life Sci 2019; 76:4179-4201. [PMID: 31563998 PMCID: PMC6858579 DOI: 10.1007/s00018-019-03212-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 06/01/2019] [Accepted: 06/26/2019] [Indexed: 02/06/2023]
Abstract
Uncontrolled scarring, or fibrosis, can interfere with the normal function of virtually all tissues of the body, ultimately leading to organ failure and death. Fibrotic diseases represent a major cause of death in industrialized countries. Unfortunately, no curative treatments for these conditions are yet available, highlighting the critical need for a better fundamental understanding of molecular mechanisms that may be therapeutically tractable. The ultimate indispensable effector cells responsible for deposition of extracellular matrix proteins that comprise scars are mesenchymal cells, namely fibroblasts and myofibroblasts. In this review, we focus on the biology of these cells and the molecular mechanisms that regulate their pertinent functions. We discuss key pro-fibrotic mediators, signaling pathways, and transcription factors that dictate their activation and persistence. Because of their possible clinical and therapeutic relevance, we also consider potential brakes on mesenchymal cell activation and cellular processes that may facilitate myofibroblast clearance from fibrotic tissue-topics that have in general been understudied.
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Affiliation(s)
- Loka R Penke
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, 6301 MSRB III, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109-5642, USA
| | - Marc Peters-Golden
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, 6301 MSRB III, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109-5642, USA.
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49
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Lee EJ, Cárdenes N, Álvarez D, Sellarés J, Sembrat J, Aranda P, Peng Y, Bullock J, Nouraie SM, Mora AL, Rojas M. Mesenchymal stem cells reduce ER stress via PERK-Nrf2 pathway in an aged mouse model. Respirology 2019; 25:417-426. [PMID: 31364255 DOI: 10.1111/resp.13646] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 04/01/2019] [Accepted: 06/04/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVE Mesenchymal stem cells (MSC) have been shown to ameliorate the deleterious effects of bleomycin in murine models. However, the mechanism responsible for protection from pulmonary fibrosis by stem cell therapy is still poorly understood, especially in terms of endoplasmic reticulum (ER) stress. We hypothesized that during bleomycin-induced lung injury, markers of ER stress, specifically the activation of the unfolded protein response (UPR), increase during injury, resembling the kinetics of collagen deposition in the lung described for the bleomycin model. We aimed to elucidate the possible role of MSC in ER stress modulation. METHODS To determine the kinetics of ER stress in aged mice, the expression of ER stress markers after bleomycin lung injury was measured in old mice at different time points (days 0, 3, 7, 14 and 21). To evaluate the consequences of systemic delivery of MSC on lung ER stress in the bleomycin model, we evaluated changes in body weight, lung histology and protein expression of ER stress markers. RESULTS The level of expression of UPR transcription factor XBP-1 and its regulator BiP was elevated at day 7 and progressively increased up to day 21. MSC inhibited BiP expression in bleomycin-induced ER stress, attenuating ER stress via the protein kinase RNA-like ER kinase (PERK)-Nrf2 pathway. The expression levels of other ER stress markers were not perturbed by MSC. CONCLUSION Our data suggest that MSC operate on ER stress via several pathways, but the PERK-Nrf2 pathway revealed to be the main functioning pathway in our bleomycin model.
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Affiliation(s)
- Eun Joo Lee
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, Korea University College of Medicine, Seoul, Korea
| | - Nayra Cárdenes
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Diana Álvarez
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jacobo Sellarés
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,Interstitial Lung Disease Program, Servei de Pneumologia, Hospital Clínic, Barcelona, Spain
| | - John Sembrat
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Paola Aranda
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yating Peng
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jordan Bullock
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Seyed M Nouraie
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ana L Mora
- Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,Vascular Medicine Institute University of Pittsburgh, Pittsburgh, PA, USA
| | - Mauricio Rojas
- The Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Respiratory, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,Vascular Medicine Institute University of Pittsburgh, Pittsburgh, PA, USA.,McGowan Institute of Regenerative Medicine University of Pittsburgh, Pittsburgh, PA, USA
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50
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Ahmed MY, Salah MM, Kassim SK, Abdelaal A, Elayat WM, Mohamed DAW, Fouly AE, Abu-Zahra FAE. Evaluation of the diagnostic and therapeutic roles of non-coding RNA and cell proliferation related gene association in hepatocellular carcinoma. Gene 2019; 706:97-105. [PMID: 31034943 DOI: 10.1016/j.gene.2019.04.054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/17/2019] [Accepted: 04/18/2019] [Indexed: 12/30/2022]
Abstract
Micro RNA-34a-5p (miR-34a-5p) is an important molecule that can act as a modulator of tumor growth. It controls expression of a plenty of proteins controlling cell cycle, differentiation and apoptosis and opposing processes that favor viability of cancer cells, their metastasis and resistance to chemotherapy. Bioinformatics analysis indicated that minichromosome maintenance protein 2 (MCM2) is a target gene of miR-34a-p. In this study, RT-qPCR was employed to detect the expression of miR-34a-5p and MCM2 in 10 hepatocellular carcinoma (HCC) tissues. The functional role of miR-34a-5p in HCC was investigated and the interaction between miR-34a-5p and MCM2 was explored. Results showed miR-34a-5p expression in HCC tissues was significantly lower than in non HCC liver tissues (P < 0.05), but MCM2 expression in HCC tissues was markedly higher than in non HCC liver tissues (P < 0.05). In addition, miR-34a-5p expression was negatively related to MCM2 expression. To confirm effect of miR-34a-5p on tumor growth and its possible effect on MCM2, miR-34a-5p mimic and inhibitor was transfected into HCC cell lines (HepG2). MTS assay, showed miR-34a-5p over-expression could inhibit the proliferation of HCC cells. RT-qPCR was done to detect the expression of miR-34a-5p and MCM2 in HepG2 cells before and after transfection. Results showed that MCM2 expression in HCC tissues was markedly lower in mimic transfected group than in inhibitor transfected group and control group (P < 0.05) while miR-34a-5p expression in HepG2 cells was significantly higher in mimic transfected group than in inhibitor transfected group and control group (P < 0.05). Thus, miR-34a-5p may inhibit the proliferation of HCC cells via regulating MCM2 expression. These findings provide an evidence for the emerging role of microRNAs as diagnostic markers and therapeutic targets in HCC.
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Affiliation(s)
- Manar Yehia Ahmed
- Medical Biochemistry Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mofida Mohammed Salah
- Medical Biochemistry Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Samar Kamal Kassim
- Medical Biochemistry Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Amr Abdelaal
- Department of Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Wael M Elayat
- Medical Biochemistry Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
| | | | - Amr El Fouly
- Endemic Medicine Department, Faculty of Medicine, Helwan University, Helwan, Egypt
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