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Peng H, Zhang Y, Min J, Tan Y, Liu S. Loss of ZNF451 mediates fibroblast activation and promotes lung fibrosis. Respir Res 2024; 25:160. [PMID: 38600524 PMCID: PMC11008011 DOI: 10.1186/s12931-024-02781-7] [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: 10/24/2023] [Accepted: 03/19/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND No effective therapies for pulmonary fibrosis (PF) exist because of the unclear molecular pathogenesis and the lack of effective therapeutic targets. Zinc finger protein 451 (ZNF451), a transcriptional regulator, plays crucial roles in the pathogenesis of several diseases. However, its expression pattern and function in PF remain unknown. This study was designed to investigate the role of ZNF451 in the pathogenesis of lung fibrosis. METHODS GEO dataset analysis, RT‒PCR, and immunoblot assays were used to examine the expression of ZNF451 in PF; ZNF451 knockout mice and ZNF451-overexpressing lentivirus were used to determine the importance of ZNF451 in PF progression; and migration assays, immunofluorescence staining, and RNA-seq analysis were used for mechanistic studies. RESULTS ZNF451 is downregulated and negatively associated with disease severity in PF. Compared with wild-type (WT) mice, ZNF451 knockout mice exhibited much more serious PF changes. However, ZNF451 overexpression protects mice from BLM-induced pulmonary fibrosis. Mechanistically, ZNF451 downregulation triggers fibroblast activation by increasing the expression of PDGFB and subsequently activating PI3K/Akt signaling. CONCLUSION These findings uncover a critical role of ZNF451 in PF progression and introduce a novel regulatory mechanism of ZNF451 in fibroblast activation. Our study suggests that ZNF451 serves as a potential therapeutic target for PF and that strategies aimed at increasing ZNF451 expression may be promising therapeutic approaches for PF.
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Affiliation(s)
- Hong Peng
- Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
| | - Yu Zhang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, Changsha, Hunan, 410011, China
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
| | - Jiali Min
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, Changsha, Hunan, 410011, China
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
| | - Yuexin Tan
- Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
| | - Shanshan Liu
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, Changsha, Hunan, 410011, China.
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China.
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Wang HY, Tsai SC, Lin YC, Hou JU, Chao CH. The effect of antifibrotic agents on acute respiratory failure in COVID-19 patients: a retrospective cohort study from TriNetX US collaborative networks. BMC Pulm Med 2024; 24:160. [PMID: 38566026 PMCID: PMC10986056 DOI: 10.1186/s12890-024-02947-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 03/04/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND The coronavirus disease 2019 (COVID-19) pandemic has had a significant impact on global health and economies, resulting in millions of infections and deaths. This retrospective cohort study aimed to investigate the effect of antifibrotic agents (nintedanib and pirfenidone) on 1-year mortality in COVID-19 patients with acute respiratory failure. METHODS Data from 61 healthcare organizations in the TriNetX database were analyzed. Adult patients with COVID-19 and acute respiratory failure were included. Patients with a pre-existing diagnosis of idiopathic pulmonary fibrosis before their COVID-19 diagnosis were excluded. The study population was divided into an antifibrotic group and a control group. Propensity score matching was used to compare outcomes, and hazard ratios (HR) for 1-year mortality were calculated. RESULTS The antifibrotic group exhibited a significantly lower 1-year mortality rate compared to the control group. The survival probability at the end of the study was 84.42% in the antifibrotic group and 69.87% in the control group. The Log-Rank test yielded a p-value of less than 0.001. The hazard ratio was 0.434 (95% CI: 0.264-0.712), indicating a significant reduction in 1-year mortality in the antifibrotic group. Subgroup analysis demonstrated significantly improved 1-year survival in patients receiving nintedanib treatment and during periods when the Wuhan strain was predominant. DISCUSSION This study is the first to demonstrate a survival benefit of antifibrotic agents in COVID-19 patients with acute respiratory failure. Further research and clinical trials are needed to confirm the efficacy of these antifibrotic agents in the context of COVID-19 and acute respiratory failure.
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Affiliation(s)
- Hsin-Yi Wang
- Department of Nuclear Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Shih-Chuan Tsai
- Department of Nuclear Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Medical Imaging and Radiological Technology, Institute of Radiological Science, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Yi-Ching Lin
- Department of Nuclear Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Public Health, China Medical University, Taichung, Taiwan
| | - Jing-Uei Hou
- Department of Nuclear Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chih-Hao Chao
- Division of Chest Medicine, Department of Internal Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan.
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Guiot J, Henket M, Remacle C, Cambier M, Struman I, Winandy M, Moermans C, Louis E, Malaise M, Ribbens C, Louis R, Njock MS. Systematic review of overlapping microRNA patterns in COVID-19 and idiopathic pulmonary fibrosis. Respir Res 2023; 24:112. [PMID: 37061683 PMCID: PMC10105547 DOI: 10.1186/s12931-023-02413-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/03/2023] [Indexed: 04/17/2023] Open
Abstract
BACKGROUND Pulmonary fibrosis is an emerging complication of SARS-CoV-2 infection. In this study, we speculate that patients with COVID-19 and idiopathic pulmonary fibrosis (IPF) may share aberrant expressed microRNAs (miRNAs) associated to the progression of lung fibrosis. OBJECTIVE To identify miRNAs presenting similar alteration in COVID-19 and IPF, and describe their impact on fibrogenesis. METHODS A systematic review of the literature published between 2010 and January 2022 (PROSPERO, CRD42022341016) was conducted using the key words (COVID-19 OR SARS-CoV-2) AND (microRNA OR miRNA) or (idiopathic pulmonary fibrosis OR IPF) AND (microRNA OR miRNA) in Title/Abstract. RESULTS Of the 1988 references considered, 70 original articles were appropriate for data extraction: 27 studies focused on miRNAs in COVID-19, and 43 on miRNAs in IPF. 34 miRNAs were overlapping in COVID-19 and IPF, 7 miRNAs presenting an upregulation (miR-19a-3p, miR-200c-3p, miR-21-5p, miR-145-5p, miR-199a-5p, miR-23b and miR-424) and 9 miRNAs a downregulation (miR-17-5p, miR-20a-5p, miR-92a-3p, miR-141-3p, miR-16-5p, miR-142-5p, miR-486-5p, miR-708-3p and miR-150-5p). CONCLUSION Several studies reported elevated levels of profibrotic miRNAs in COVID-19 context. In addition, the balance of antifibrotic miRNAs responsible of the modulation of fibrotic processes is impaired in COVID-19. This evidence suggests that the deregulation of fibrotic-related miRNAs participates in the development of fibrotic lesions in the lung of post-COVID-19 patients.
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Affiliation(s)
- Julien Guiot
- Laboratory of Pneumology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
- Fibropole Research Group, University Hospital of Liège, Liège, Belgium
| | - Monique Henket
- Laboratory of Pneumology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
| | - Claire Remacle
- Laboratory of Pneumology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
- Laboratory of Molecular Angiogenesis, GIGA Research Center, University of Liège, Liège, Belgium
| | - Maureen Cambier
- Laboratory of Pneumology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
- Laboratory of Molecular Angiogenesis, GIGA Research Center, University of Liège, Liège, Belgium
| | - Ingrid Struman
- Laboratory of Molecular Angiogenesis, GIGA Research Center, University of Liège, Liège, Belgium
| | - Marie Winandy
- Laboratory of Pneumology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
| | - Catherine Moermans
- Laboratory of Pneumology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
| | - Edouard Louis
- Laboratory of Gastroenterology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
- Fibropole Research Group, University Hospital of Liège, Liège, Belgium
| | - Michel Malaise
- Laboratory of Rheumatology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
- Fibropole Research Group, University Hospital of Liège, Liège, Belgium
| | - Clio Ribbens
- Laboratory of Rheumatology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
- Fibropole Research Group, University Hospital of Liège, Liège, Belgium
| | - Renaud Louis
- Laboratory of Pneumology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
- Fibropole Research Group, University Hospital of Liège, Liège, Belgium
| | - Makon-Sébastien Njock
- Laboratory of Pneumology, GIGA Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
- Fibropole Research Group, University Hospital of Liège, Liège, Belgium
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Abstract
Mechanical variables such as stiffness, stress, strain, and fluid shear stress are central to tissue functions, thus, must be maintained within the proper range. Mechanics are especially important in the cardiovascular system and lung, the functions of which are essentially mechanical. Mechanical homeostasis is characterized by negative feedback in which deviations from the optimal value or set point activates mechanisms to return the system to the correct range. In chronic diseases, homeostatic mechanisms are generally overcome or replaced with positive feedback loops that promote disease progression. Recent work has shown that microRNAs (miRNAs) are essential to mechanical homeostasis in a number of biological systems and that perturbations to miRNA biogenesis play key roles in cardiovascular and pulmonary diseases. In this review, we integrate current knowledge of miRNAs in mechanical homeostasis and how these mechanisms are altered in disease.
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Affiliation(s)
- Jeremy A Herrera
- The Wellcome Centre for Cell-Matrix Research, University of Manchester, Manchester M13 9PT, United Kingdom
| | - Martin A Schwartz
- Yale Cardiovascular Research Center and Departments of Internal Medicine (Cardiology), Cell Biology, and Biomedical Engineering, Yale School of Medicine, New Haven 06511, Connecticut, USA
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5
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Yang Y, Huang H, Li Y. Roles of exosomes and exosome-derived miRNAs in pulmonary fibrosis. Front Pharmacol 2022; 13:928933. [PMID: 36034858 PMCID: PMC9403513 DOI: 10.3389/fphar.2022.928933] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 07/15/2022] [Indexed: 11/13/2022] Open
Abstract
Pulmonary fibrosis is a chronic, progressive fibrosing interstitial lung disease of unknown etiology that leads rapidly to death. It is characterized by the replacement of healthy tissue through an altered extracellular matrix and damage to the alveolar structure. New pharmacological treatments and biomarkers are needed for pulmonary fibrosis to ensure better outcomes and earlier diagnosis of patients. Exosomes are nanoscale vesicles released by nearly all cell types that play a central role as mediators of cell-to-cell communication. Moreover, exosomes are emerging as a crucial factor in antigen presentation, immune response, immunomodulation, inflammation, and cellular phenotypic transformation and have also shown promising therapeutic potential in pulmonary fibrosis. This review summarizes current knowledge of exosomes that may promote pulmonary fibrosis and be utilized for diagnostics and prognostics. In addition, the utilization of exosomes and their cargo miRNAs as novel therapeutics and their potential mechanisms are also discussed. This review aims to elucidate the role of exosomes in the pathogenesis of pulmonary fibrosis and paves the way for developing novel therapeutics for pulmonary fibrosis. Further in-depth research and clinical trials on this topic are encouraged in the future.
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Affiliation(s)
- Yongfeng Yang
- Precision Medicine Key Laboratory, Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hong Huang
- Precision Medicine Key Laboratory, Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Transplantation Engineering and Immunology, Institute of Clinical Pathology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yi Li
- Precision Medicine Key Laboratory, Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- *Correspondence: Yi Li,
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Mustafin RN. Molecular genetics of idiopathic pulmonary fibrosis. Vavilovskii Zhurnal Genet Selektsii 2022; 26:308-318. [PMID: 35795226 PMCID: PMC9170936 DOI: 10.18699/vjgb-22-37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/14/2021] [Accepted: 01/13/2022] [Indexed: 11/19/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a severe progressive interstitial lung disease with a prevalence of 2 to 29 per 100,000 of the world’s population. Aging is a significant risk factor for IPF, and the mechanisms of aging (telomere depletion, genomic instability, mitochondrial dysfunction, loss of proteostasis) are involved in the pathogenesis of IPF. The pathogenesis of IPF consists of TGF-β activation, epithelial-mesenchymal transition, and SIRT7 expression decrease. Genetic studies have shown a role of mutations and polymorphisms in mucin genes (MUC5B), in the genes responsible for the integrity of telomeres (TERC, TERC, TINF2, DKC1, RTEL1, PARN), in surfactant-related genes (SFTPC, SFTPCA, SFTPA2, ABCA3, SP-A2), immune system genes (IL1RN, TOLLIP), and haplotypes of HLA genes (DRB1*15:01, DQB1*06:02) in IPF pathogenesis. The investigation of the influence of reversible epigenetic factors on the development of the disease, which can be corrected by targeted therapy, shows promise. Among them, an association of a number of specific microRNAs and long noncoding RNAs was revealed with IPF. Therefore, dysregulation of transposons, which serve as key sources of noncoding RNA and affect mechanisms of aging, may serve as a driver for IPF development. This is due to the fact that pathological activation of transposons leads to violation of the regulation of genes, in the epigenetic control of which microRNA originating from these transposons are involved (due to the complementarity of nucleotide sequences). Analysis of the MDTE database (miRNAs derived from Transposable Elements) allowed the detection of 12 different miRNAs derived in evolution
from transposons and associated with IPF (miR-31, miR-302, miR-326, miR-335, miR-340, miR-374, miR-487, miR-493,
miR-495, miR-630, miR-708, miR-1343). We described the relationship of transposons with TGF-β, sirtuins and
telomeres, dysfunction of which is involved in the pathogenesis of IPF. New data on IPF epigenetic mechanisms can
become the basis for improving results of targeted therapy of the disease using noncoding RNAs.
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MicroRNA Cross-Involvement in Acne Vulgaris and Hidradenitis Suppurativa: A Literature Review. Int J Mol Sci 2022; 23:ijms23063241. [PMID: 35328662 PMCID: PMC8955726 DOI: 10.3390/ijms23063241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/11/2022] [Accepted: 03/15/2022] [Indexed: 02/04/2023] Open
Abstract
Acne Vulgaris (AV) and Hidradenitis suppurativa (HS) are common chronic inflammatory skin conditions that affect the follicular units that often coexist or are involved in differential diagnoses. Inflammation in both these diseases may result from shared pathways, which may partially explain their frequent coexistence. MicroRNAs (miRNAs) are a class of endogenous, short, non-protein coding, gene-silencing or promoting RNAs that may promote various inflammatory diseases. This narrative review investigates the current knowledge regarding miRNAs and their link to AV and HS. The aim is to examine the role of these molecules in the pathogenesis of AV and HS and to identify possible common miRNAs that could explain the similar characteristics of these two diseases. Five miRNA (miR-155 miR-223-, miR-21, and miRNA-146a) levels were found to be altered in both HS and AV. These miRNAs are related to pathogenetic aspects common to both pathologies, such as the regulation of the innate immune response, regulation of the Th1/Th17 axis, and fibrosis processes that induce scar formation. This review provides a starting point for further studies aimed at investigating the role of miRNAs in AV and HS for their possible use as diagnostic-therapeutic targets.
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Zaaroor Levy M, Rabinowicz N, Yamila Kohon M, Shalom A, Berl A, Hornik-Lurie T, Drucker L, Tartakover Matalon S, Levy Y. MiRNAs in Systemic Sclerosis Patients with Pulmonary Arterial Hypertension: Markers and Effectors. Biomedicines 2022; 10:biomedicines10030629. [PMID: 35327430 PMCID: PMC8945806 DOI: 10.3390/biomedicines10030629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/03/2022] [Accepted: 03/03/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Pulmonary arterial hypertension (PAH) is a major cause of death in systemic sclerosis (SSc). Early detection may improve patient outcomes. Methods: We searched for circulating miRNAs that would constitute biomarkers in SSc patients with PAH (SSc-PAH). We compared miRNA levels and laboratory parameters while evaluating miRNA levels in white blood cells (WBCs) and myofibroblasts. Results: Our study found: 1) miR-26 and miR-let-7d levels were significantly lower in SSc-PAH (n = 12) versus SSc without PAH (SSc-noPAH) patients (n = 25); 2) a positive correlation between miR-26 and miR-let-7d and complement-C3; 3) GO-annotations of genes that are miR-26/miR-let-7d targets and that are expressed in myofibroblast cells, suggesting that these miRNAs regulate the TGF-β-pathway; 4) reduced levels of both miRNAs accompanied fibroblast differentiation to myofibroblasts, while macitentan (endothelin receptor-antagonist) increased the levels. WBCs of SSc-noPAH and SSc-PAH patients contained equal amounts of miR-26/miR-let-7d. During the study, an echocardiograph that predicted PAH development, showed increased pulmonary artery pressure in three SSc-noPAH patients. At study initiation, those patients and an additional SSc-noPAH patient, who eventually developed PAH, had miR-let-7d/miR-26 levels similar to those of SSc-PAH patients. This implies that reduced miR-let-7d/miR-26 levels might be an early indication of PAH. Conclusions: miR-26 and miR-let-7d may be serological markers for SSc-PAH. The results of our study suggest their involvement in myofibroblast differentiation and complement pathway activation, both of which are active in PAH development.
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Affiliation(s)
- Mor Zaaroor Levy
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.Z.L.); (N.R.); (M.Y.K.); (A.S.); (A.B.); (L.D.)
- Autoimmune Research Laboratory, Meir Medical Center, Kfar Saba 4428164, Israel
| | - Noa Rabinowicz
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.Z.L.); (N.R.); (M.Y.K.); (A.S.); (A.B.); (L.D.)
- Autoimmune Research Laboratory, Meir Medical Center, Kfar Saba 4428164, Israel
| | - Maia Yamila Kohon
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.Z.L.); (N.R.); (M.Y.K.); (A.S.); (A.B.); (L.D.)
- Autoimmune Research Laboratory, Meir Medical Center, Kfar Saba 4428164, Israel
| | - Avshalom Shalom
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.Z.L.); (N.R.); (M.Y.K.); (A.S.); (A.B.); (L.D.)
- Department of Plastic Surgery, Meir Medical Center, Kfar Saba 4428164, Israel
| | - Ariel Berl
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.Z.L.); (N.R.); (M.Y.K.); (A.S.); (A.B.); (L.D.)
- Department of Plastic Surgery, Meir Medical Center, Kfar Saba 4428164, Israel
| | | | - Liat Drucker
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.Z.L.); (N.R.); (M.Y.K.); (A.S.); (A.B.); (L.D.)
- Oncogenetic Laboratory, Meir Medical Center, Kfar Saba 4428164, Israel
| | - Shelly Tartakover Matalon
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.Z.L.); (N.R.); (M.Y.K.); (A.S.); (A.B.); (L.D.)
- Autoimmune Research Laboratory, Meir Medical Center, Kfar Saba 4428164, Israel
- Correspondence: (S.T.M.); (Y.L.); Tel./Fax: +972-9-74721992 (S.T.M.)
| | - Yair Levy
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.Z.L.); (N.R.); (M.Y.K.); (A.S.); (A.B.); (L.D.)
- Autoimmune Research Laboratory, Meir Medical Center, Kfar Saba 4428164, Israel
- Department of Internal Medicine E, Meir Medical Center, Kfar Saba 4428164, Israel
- Correspondence: (S.T.M.); (Y.L.); Tel./Fax: +972-9-74721992 (S.T.M.)
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Rackow AR, Judge JL, Woeller CF, Sime PJ, Kottmann RM. miR-338-3p blocks TGFβ-induced myofibroblast differentiation through the induction of PTEN. Am J Physiol Lung Cell Mol Physiol 2022; 322:L385-L400. [PMID: 34986654 PMCID: PMC8884407 DOI: 10.1152/ajplung.00251.2021] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic interstitial lung disease. The pathogenesis of IPF is not completely understood. However, numerous genes are associated with the development and progression of pulmonary fibrosis, indicating there is a significant genetic component to the pathogenesis of IPF. Epigenetic influences on the development of human disease, including pulmonary fibrosis, remain to be fully elucidated. In this paper, we identify miR-338-3p as a microRNA severely downregulated in the lungs of patients with pulmonary fibrosis and in experimental models of pulmonary fibrosis. Treatment of primary human lung fibroblasts with miR-338-3p inhibits myofibroblast differentiation and matrix protein production. Published and proposed targets of miR-338-3p such as TGFβ receptor 1, MEK/ERK 1/2, Cdk4, and Cyclin D are also not responsible for the regulation of pulmonary fibroblast behavior by miR-338-3p. miR-338-3p inhibits myofibroblast differentiation by preventing TGFβ-mediated downregulation of phosphatase and tensin homolog (PTEN), a known antifibrotic mediator.
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Affiliation(s)
- Ashley R. Rackow
- 1Lung Biology and Disease Program, University of Rochester Medical Center Rochester, Rochester, New York,2Department of Environmental Medicine, University of Rochester Medical Center Rochester, Rochester, New York
| | | | - Collynn F. Woeller
- 2Department of Environmental Medicine, University of Rochester Medical Center Rochester, Rochester, New York,4Department of Ophthalmology, University of Rochester Medical Center, Rochester, New York
| | - Patricia J. Sime
- 5Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, Virginia
| | - Robert M. Kottmann
- 1Lung Biology and Disease Program, University of Rochester Medical Center Rochester, Rochester, New York,2Department of Environmental Medicine, University of Rochester Medical Center Rochester, Rochester, New York,6Division of Pulmonary Disease and Critical Care Medicine, University of Rochester Medical Center, Rochester, New York
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Yu J, Tang R, Ding K. Epigenetic Modifications in the Pathogenesis of Systemic Sclerosis. Int J Gen Med 2022; 15:3155-3166. [PMID: 35342304 PMCID: PMC8942200 DOI: 10.2147/ijgm.s356877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/04/2022] [Indexed: 11/23/2022] Open
Abstract
Systemic sclerosis is a rare chronic autoimmune disease, which mainly manifests as immune disorders, vascular damage, and progressive fibrosis. The etiology of SSc is complex and involves multiple factors. Both genetic and environmental factors are involved in its pathogenesis. As one of the molecular mechanisms of environmental factors, epigenetic regulation plays an important role in the occurrence and development of systemic sclerosis, which involves DNA methylation, histone modification and non-coding RNA regulation. This review summarizes research advances in epigenetics, including exosomes, lncRNA, and mentions possible biomarkers and therapeutic targets among them.
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Affiliation(s)
- Jiangfan Yu
- Department of Dermatology, Second Xiangya Hospital of Central South University, Changsha, 410011, People’s Republic of China
| | - Rui Tang
- Department of Rheumatology and Immunology, Second Xiangya Hospital of Central South University, Changsha, 410011, People’s Republic of China
| | - Ke Ding
- Department of Urology, Xiangya Hospital of Central South University, Changsha, 410008, People’s Republic of China
- Correspondence: Ke Ding, Department of Urology, Xiangya Hospital of Central South University, Changsha, 410008, People’s Republic of China, Email
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11
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Qiu J, Ma C, Dai W, Fang E, Li W, Yang F. Ghrelin attenuates transforming growth factor-β1-induced pulmonary fibrosis via the miR-125a-5p/Kruppel-like factor 13 axis. Arch Biochem Biophys 2022; 715:109082. [PMID: 34767797 DOI: 10.1016/j.abb.2021.109082] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 10/24/2021] [Accepted: 11/05/2021] [Indexed: 12/22/2022]
Abstract
Pulmonary fibrosis is a severe condition with limited therapeutic options and characterized by increased fibroblast activation and progressive accumulation of extracellular matrix. Ghrelin, a gastrointestinal hormone, has been reported to possess protective roles in lung diseases including pulmonary fibrosis. However, the precise mechanisms underlying the protective effects of ghrelin remain unknown. The present study was designed to investigate the effects of ghrelin on transforming growth factor-β1 (TGF-β1)-induced pulmonary fibrosis in vitro and in vivo and the possible mechanism of action. It was found that ghrelin significantly attenuated TGF-β1-induced fibrotic responses in human lung fibroblast (IMR-90) cells and bleomycin (BLM)-induced fibrotic lung tissues. Meanwhile, ghrelin decreased the expressions of miR-125a-5p and phosphorylated smad2/3 and increased protein expressions of Kruppel-like factor 13 (KLF13) in vivo and in vitro. Ghrelin-induced anti-fibrotic effects and smad2/3 downregulation in TGF-β1-stimulated IMR-90 cells were markedly reversed by miR-125a-5p mimics and KLF13 siRNA. Furthermore, miR-125a-5p directly targeted KLF13 in IMR-90 cells. Our findings suggest that ghrelin attenuates TGF-β1-induced pulmonary fibrosis via the miR-125a-5p/KLF13 axis, which supports ghrelin as a new therapeutic agent against pulmonary fibrosis by antagonizing the TGF-β1 signaling pathway.
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Affiliation(s)
- Jing Qiu
- Chengdu Medical College, No. 783, Xindu Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Chengdu Medical College, No. 278, Baoguang Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Key Laboratory of Geriatic Respiratory Diseases of Sichuan Higher Education Institutes, No. 278, Baoguang Avenue, Xindu District, Chengdu , 610500, Sichuan, China
| | - Chunlan Ma
- Chengdu Medical College, No. 783, Xindu Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Chengdu Medical College, No. 278, Baoguang Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Key Laboratory of Geriatic Respiratory Diseases of Sichuan Higher Education Institutes, No. 278, Baoguang Avenue, Xindu District, Chengdu , 610500, Sichuan, China
| | - Wenjing Dai
- Chengdu Medical College, No. 783, Xindu Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Chengdu Medical College, No. 278, Baoguang Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Key Laboratory of Geriatic Respiratory Diseases of Sichuan Higher Education Institutes, No. 278, Baoguang Avenue, Xindu District, Chengdu , 610500, Sichuan, China
| | - Enrong Fang
- Chengdu Medical College, No. 783, Xindu Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Chengdu Medical College, No. 278, Baoguang Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Key Laboratory of Geriatic Respiratory Diseases of Sichuan Higher Education Institutes, No. 278, Baoguang Avenue, Xindu District, Chengdu , 610500, Sichuan, China
| | - Wancheng Li
- Chengdu Medical College, No. 783, Xindu Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Chengdu Medical College, No. 278, Baoguang Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Key Laboratory of Geriatic Respiratory Diseases of Sichuan Higher Education Institutes, No. 278, Baoguang Avenue, Xindu District, Chengdu , 610500, Sichuan, China
| | - Fan Yang
- Chengdu Medical College, No. 783, Xindu Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Chengdu Medical College, No. 278, Baoguang Avenue, Xindu District, Chengdu, 610500, Sichuan, China; Key Laboratory of Geriatic Respiratory Diseases of Sichuan Higher Education Institutes, No. 278, Baoguang Avenue, Xindu District, Chengdu , 610500, Sichuan, China.
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12
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Shi X, Chen Y, Liu Q, Mei X, Liu J, Tang Y, Luo R, Sun D, Ma Y, Wu W, Tu W, Zhao Y, Xu W, Ke Y, Jiang S, Huang Y, Zhang R, Wang L, Chen Y, Xia J, Pu W, Zhu H, Zuo X, Li Y, Xu J, Gao F, Wei D, Chen J, Yin W, Wang Q, Dai H, Yang L, Guo G, Cui J, Song N, Zou H, Zhao S, Distler JH, Jin L, Wang J. LDLR dysfunction induces LDL accumulation and promotes pulmonary fibrosis. Clin Transl Med 2022; 12:e711. [PMID: 35083881 PMCID: PMC8792399 DOI: 10.1002/ctm2.711] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 12/27/2021] [Accepted: 01/05/2022] [Indexed: 12/15/2022] Open
Abstract
Treatments for pulmonary fibrosis (PF) are ineffective because its molecular pathogenesis and therapeutic targets are unclear. Here, we show that the expression of low-density lipoprotein receptor (LDLR) was significantly decreased in alveolar type II (ATII) and fibroblast cells, whereas it was increased in endothelial cells from systemic sclerosis-related PF (SSc-PF) patients and idiopathic PF (IPF) patients compared with healthy controls. However, the plasma levels of low-density lipoprotein (LDL) increased in SSc-PF and IPF patients. The disrupted LDL-LDLR metabolism was also observed in four mouse PF models. Upon bleomycin (BLM) treatment, Ldlr-deficient (Ldlr-/-) mice exhibited remarkably higher LDL levels, abundant apoptosis, increased fibroblast-like endothelial and ATII cells and significantly earlier and more severe fibrotic response compared to wild-type mice. In vitro experiments revealed that apoptosis and TGF-β1 production were induced by LDL, while fibroblast-like cell accumulation and ET-1 expression were induced by LDLR knockdown. Treatment of fibroblasts with LDL or culture medium derived from LDL-pretreated endothelial or epithelial cells led to obvious fibrotic responses in vitro. Similar results were observed after LDLR knockdown operation. These results suggest that disturbed LDL-LDLR metabolism contributes in various ways to the malfunction of endothelial and epithelial cells, and fibroblasts during pulmonary fibrogenesis. In addition, pharmacological restoration of LDLR levels by using a combination of atorvastatin and alirocumab inhibited BLM-induced LDL elevation, apoptosis, fibroblast-like cell accumulation and mitigated PF in mice. Therefore, LDL-LDLR may serve as an important mediator in PF, and LDLR enhancing strategies may have beneficial effects on PF.
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Affiliation(s)
- Xiangguang Shi
- Department of Dermatology, Huashan Hospital and State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiP. R. China
| | - Yahui Chen
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
| | - Qingmei Liu
- Department of Dermatology, Huashan Hospital and State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiP. R. China
| | - Xueqian Mei
- Department of Dermatology, Huashan Hospital and State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiP. R. China
| | - Jing Liu
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
- Division of RheumatologyHuashan hospital, Fudan UniversityShanghaiP. R. China
| | - Yulong Tang
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
| | - Ruoyu Luo
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
| | - Dayan Sun
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
| | - Yanyun Ma
- MOE Key Laboratory of Contemporary Anthropology, Department of Anthropology and Human Genetics, School of Life SciencesFudan UniversityShanghaiP. R. China
- Institute for Six‐sector EconomyFudan UniversityShanghaiP. R. China
| | - Wenyu Wu
- Department of Dermatology, Huashan Hospital and State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiP. R. China
| | - Wenzhen Tu
- Division of RheumatologyShanghai TCM‐Integrated HospitalShanghaiP. R. China
| | - Yinhuan Zhao
- Division of RheumatologyShanghai TCM‐Integrated HospitalShanghaiP. R. China
| | - Weihong Xu
- The Clinical Laboratory of Tongren HosipitalShanghai Jiaotong UniversityShanghaiP. R. China
| | - Yuehai Ke
- Department of Pathology and PathophysiologyZhejiang University School of MedicineHangzhouZhejiang ProvinceP. R. China
| | - Shuai Jiang
- Department of Dermatology, Huashan Hospital and State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiP. R. China
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
| | - Yan Huang
- Department of Dermatology, Huashan Hospital and State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiP. R. China
| | - Rui Zhang
- Department of Dermatology, Huashan Hospital and State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiP. R. China
- Institute for Six‐sector EconomyFudan UniversityShanghaiP. R. China
| | - Lei Wang
- Division of RheumatologyShanghai TCM‐Integrated HospitalShanghaiP. R. China
| | - Yuanyuan Chen
- Division of RheumatologyShanghai TCM‐Integrated HospitalShanghaiP. R. China
| | - Jingjing Xia
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
| | - Weilin Pu
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
| | - Honglin Zhu
- Department of Internal Medicine 3 and Institute for Clinical ImmunologyUniversity of ErlangenNurembergGermany
- Department of Rheumatology, Xiangya HospitalCentral South UniversityChangshaHunan ProvinceP. R. China
| | - Xiaoxia Zuo
- Department of Rheumatology, Xiangya HospitalCentral South UniversityChangshaHunan ProvinceP. R. China
| | - Yisha Li
- Department of Rheumatology, Xiangya HospitalCentral South UniversityChangshaHunan ProvinceP. R. China
| | - Jinhua Xu
- Department of Dermatology, Huashan Hospital and State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiP. R. China
| | - Fei Gao
- Wuxi Lung Transplant CenterWuxi People's Hospital affiliated to Nanjing Medical UniversityWuxiP. R. China
| | - Dong Wei
- Wuxi Lung Transplant CenterWuxi People's Hospital affiliated to Nanjing Medical UniversityWuxiP. R. China
| | - Jingyu Chen
- Wuxi Lung Transplant CenterWuxi People's Hospital affiliated to Nanjing Medical UniversityWuxiP. R. China
| | - Wenguang Yin
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouGuangdongP. R. China
| | - Qingwen Wang
- Rheumatology and Immunology DepartmentPeking University Shenzhen HospitalShenzhenP. R. China
| | - Huaping Dai
- Department of Pulmonary and Critical Care Medicine, China‐Japan Friendship Hospital; National Clinical Research Center for Respiratory Diseases, Institute of Respiratory MedicineChinese Academy of Medical ScienceBeijingP. R. China
| | - Libing Yang
- Department of Pulmonary and Critical Care Medicine, China‐Japan Friendship Hospital; National Clinical Research Center for Respiratory Diseases, Institute of Respiratory MedicineChinese Academy of Medical ScienceBeijingP. R. China
- School of MedicineTsinghua UniversityBeijingP. R. China
| | - Gang Guo
- Department of Rheumatology and ImmunologyYiling Hospital Affiliated to Hebei Medical UniversityShijiazhuangHebei ProvinceP. R. China
| | - Jimin Cui
- Department of Rheumatology and ImmunologyYiling Hospital Affiliated to Hebei Medical UniversityShijiazhuangHebei ProvinceP. R. China
| | - Nana Song
- Department of Nephrology, Zhongshan Hospital, Fudan UniversityFudan Zhangjiang InstituteShanghaiP. R. China
| | - Hejian Zou
- Division of RheumatologyHuashan hospital, Fudan UniversityShanghaiP. R. China
- Institute of Rheumatology, Immunology and AllergyFudan UniversityShanghaiP. R. China
| | - Shimin Zhao
- Institute of Metabolism and Integrative BiologyFudan UniversityShanghaiP. R. China
| | - Jörg H.W. Distler
- Department of Internal Medicine 3 and Institute for Clinical ImmunologyUniversity of ErlangenNurembergGermany
| | - Li Jin
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
- Research Unit of Dissecting the Population Genetics and Developing New Technologies for Treatment and Prevention of Skin Phenotypes and Dermatological Diseases (2019RU058)Chinese Academy of Medical SciencesShanghaiP. R. China
| | - Jiucun Wang
- Department of Dermatology, Huashan Hospital and State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiP. R. China
- Human Phenome Institute and Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghaiP. R. China
- Institute of Rheumatology, Immunology and AllergyFudan UniversityShanghaiP. R. China
- Research Unit of Dissecting the Population Genetics and Developing New Technologies for Treatment and Prevention of Skin Phenotypes and Dermatological Diseases (2019RU058)Chinese Academy of Medical SciencesShanghaiP. R. China
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IPF-Fibroblast Erk1/2 Activity Is Independent from microRNA Cluster 17-92 but Can Be Inhibited by Treprostinil through DUSP1. Cells 2021; 10:cells10112836. [PMID: 34831059 PMCID: PMC8616195 DOI: 10.3390/cells10112836] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 01/25/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive terminal lung disease, and therapies aim to block fibrosis. Fibroblast proliferation is controlled by C/EBP-β, microRNA cluster 17-92 (miR17-92), and Erk1/2 mitogen-activated protein kinase. This study assessed the role of miR17-92 in IPF-fibroblast proliferation and its modification by treprostinil. Fibroblasts were isolated from eight IPF patients, five interstitial lung fibrosis patients, and seven control lungs. Fibroblasts were stimulated with TGF-β1 over 24 h. The miR17-92 expression was analyzed by RT-qPCR, and protein expression by Western blotting. TGF-β1 upregulated C/EBP-β in all fibroblasts, which was reduced by treprostinil in control-fibroblasts, but not in IPF-fibroblasts. Compared to controls, the guide strands miR-19a-3p, miR-19b-3p, miR-20a-5p, and miR-92a-3p, as well as the passenger strands miR-17-3p, miR-18-3p, miR-19a-1-5p, and miR-92a-5p were significantly increased in IPF-fibroblasts. In controls, TGF-β1 and treprostinil significantly reduced specific miR17-92 members. IPF-fibroblast proliferation was inhibited by treprostinil through increased expression of the Erk1/2 inhibitor DUSP1. These data suggest that proliferation control via miR17-92 and C/EBP-β is disrupted in IPF-fibroblasts. Therefore, the inhibition of early stages of signaling cascades or specific mitogen receptors might be less effective. However, the increased proliferation is sensitive to Erk1/2 inhibition by treprostinil-induced DUSP1.
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miR-29a-3p/THBS2 Axis Regulates PAH-Induced Cardiac Fibrosis. Int J Mol Sci 2021; 22:ijms221910574. [PMID: 34638915 PMCID: PMC8509017 DOI: 10.3390/ijms221910574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/23/2021] [Accepted: 09/26/2021] [Indexed: 12/21/2022] Open
Abstract
Pulmonary artery hypertension (PAH) pathology involves extracellular matrix (ECM) remodeling in cardiac tissues, thus promoting cardiac fibrosis progression. miR-29a-3p reportedly inhibits lung progression and liver fibrosis by regulating ECM protein expression; however, its role in PAH-induced fibrosis remains unclear. In this study, we aimed to investigate the role of miR-29a-3p in cardiac fibrosis progression in PAH and its influence on ECM protein thrombospondin-2 (THBS2) expression. The diagnostic and prognostic values of miR-29a-3p and THBS2 in PAH were evaluated. The expressions and effects of miR-29a-3p and THBS2 were assessed in cell culture, monocrotaline-induced PAH mouse model, and patients with PAH. The levels of circulating miR-29a-3p and THBS2 in patients and mice with PAH decreased and increased, respectively. miR-29a-3p directly targets THBS2 and regulates THBS2 expression via a direct anti-fibrotic effect on PAH-induced cardiac fibrosis. The circulating levels of miR-29a-3p and THBS2 were correlated with PAH diagnostic parameters, suggesting their independent prognostic value. miR-29a-3p targeted THBS2 expression via a direct anti-fibrotic effect on PAH-induced cardiac fibrosis, indicating miR-29a-3p acts as a messenger with promising therapeutic effects.
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15
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Reprogrammed lung epithelial cells by decrease of miR-451a in extracellular vesicles contribute to aggravation of pulmonary fibrosis. Cell Biol Toxicol 2021; 38:725-740. [PMID: 34460027 DOI: 10.1007/s10565-021-09626-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 06/21/2021] [Indexed: 12/22/2022]
Abstract
Extracellular vesicles (EVs) play novel roles in homeostasis through cell-to-cell communication in human airways via transferring miRNAs. However, the contribution of EV miRNAs to pulmonary phenotypic homeostasis is not clearly understood. Hence, the aim of this study was to elucidate the functional role of miRNAs obtained from epithelium-derived EVs in lung fibrogenesis. Pulmonary fibrosis was induced by exposure of polyhexamethylene guanidine phosphate (PHMG-p)-instilled mice. In histopathological changes, a clear phenotypic change was observed in bronchial epithelium. For figuring out the role of EVs derived from conditioned media of untreated cells (EV-Con) and PHMG-p-treated BEAS-2B (EV-PHMG), significant increase in EVs released from PHMG-p-treated BEAS-2B was detected. Functional analysis with targets of differentially expressed miRNAs in EVs was annotated to epithelial-mesenchymal transition (EMT). Especially, the most abundant miRNA, miR-451a, was downregulated in EV of PHMG-p-treated BEAS-2B cells. We found that odd-skipped related 1 (OSR1) was a putative target for miR-451a, which had been known as a transcription factor of several fibrosis-associated genes. Transfer of decreased miR-451a via EV-PHMG upregulated OSR1 and induced EMT compared to Con-EV-treated cells. In pulmonary fibrosis mice, miR-451a levels were significantly reduced in EV derived from bronchoalveolar lavage fluid and OSR1 expression was increased in lung tissues of mice with PHMG-p exposure. MiR-451a-transfected EVs markedly alleviated fibrogenesis in the PHMG-p-exposed lungs. Low level of miR-451a in EVs modulated EMT and fibrogenesis in recipient cells by increasing OSR1 levels in vitro and in vivo. Our results suggest that transferring EV miR-451a induces anti-fibrotic autocrine effect by downregulating its target, OSR1 maintaining pulmonary homeostasis disrupted by PHMG-p exposure, which can be a potential therapeutic target.
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16
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Li P, Liu C, Qian L, Zheng Z, Li C, Lian Z, Liu J, Zhang Z, Wang L. miR-10396b-3p inhibits mechanical stress-induced ligamentum flavum hypertrophy by targeting IL-11. FASEB J 2021; 35:e21676. [PMID: 34042220 DOI: 10.1096/fj.202100169rr] [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: 01/28/2021] [Revised: 05/01/2021] [Accepted: 05/04/2021] [Indexed: 12/29/2022]
Abstract
Ligamentum flavum hypertrophy (LFH) leads to lumbar spinal stenosis (LSS) caused by LF tissue inflammation and fibrosis. Emerging evidence has indicated that dysregulated microRNAs (miRNAs) have an important role in inflammation and fibrosis. Mechanical stress (MS) has been explored as an initiating step in LFH pathology progression; the inflammation-related miRNAs induced after mechanical stress have been implicated in fibrosis pathology. However, the pathophysiological mechanism of MS-miRNAs-LFH remains to be elucidated. Using miRNAs sequencing analysis and subsequent confirmation with qRT-PCR assays, we identified the decreased expression of miR-10396b-3p and increased expression of IL-11 (interleukin-11) as responses to the development of LSS in hypertrophied LF tissues. We also found that IL-11 is positively correlated with fibrosis indicators of collagen I and collagen III. The up-regulation of miR-10396b-3p significantly decreased the level of IL-11 expression, whereas miR-10396b-3p down-regulation increased IL-11 expression in vitro. Luciferase reporter assay indicates that IL-11 is a direct target of miR-10396b-3p. Furthermore, cyclic mechanical stress inhibits miR-10396b-3p and induces IL-11, collagen I, and collagen III in vitro. Our results showed that overexpression of miR-10396b-3p suppresses MS-induced LFH by inhibiting collagen I and III via the inhibition of IL-11. These data suggest that the MS-miR-10396b-3p-IL-11 axis plays a key role in the pathological progression of LFH.
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Affiliation(s)
- Peng Li
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Academy of Orthopedics, Guangzhou, China
| | - Chunlei Liu
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Academy of Orthopedics, Guangzhou, China
| | - Lei Qian
- Department of Anatomy, Guangdong Province Key Laboratory of Medical Biomechanics, Southern Medical University, Guangzhou, China
| | - Zhenyu Zheng
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Academy of Orthopedics, Guangzhou, China
| | - Chenglong Li
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Academy of Orthopedics, Guangzhou, China
| | - Zhengnan Lian
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Academy of Orthopedics, Guangzhou, China
| | - Jie Liu
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Academy of Orthopedics, Guangzhou, China
| | - Zhongmin Zhang
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Academy of Orthopedics, Guangzhou, China.,Division of Spine Surgery, Department of Orthopadics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Liang Wang
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Academy of Orthopedics, Guangzhou, China
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Niehof M, Reamon-Buettner SM, Danov O, Hansen T, Sewald K. A modified protocol for successful miRNA profiling in human precision-cut lung slices (PCLS). BMC Res Notes 2021; 14:255. [PMID: 34215333 PMCID: PMC8252208 DOI: 10.1186/s13104-021-05674-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/24/2021] [Indexed: 12/11/2022] Open
Abstract
Objective Human precision cut lung slices (PCLS) are widely used as an ex vivo model system for drug discovery and development of new therapies. PCLS reflect the functional heterogeneity of lung tissue and possess relevant lung cell types. We thus determined the use of PCLS in studying non-coding RNAs notably miRNAs, which are important gene regulatory molecules. Since miRNAs play key role as mediators of respiratory diseases, they can serve as valuable prognostic or diagnostic biomarkers, and in therapeutic interventions, of lung diseases. A technical limitation though is the vast amount of agarose in PCLS which impedes (mi)RNA extraction by standard procedures. Here we modified our recently published protocol for RNA isolation from PCLS to enable miRNA readouts. Results The modified method relies on the separation of lysis and precipitation steps, and a clean-up procedure with specific magnetic beads. We obtained successfully quality miRNA amenable for downstream applications such as RTqPCR and whole transcriptome miRNA analysis. Comparison of miRNA profiles in PCLS with published data from human lung, identified all important miRNAs regulated in IPF, COPD, asthma or lung cancer. Therefore, this shows suitability of the method for analyzing miRNA targets and biomarkers in the valuable human PCLS model. Supplementary Information The online version contains supplementary material available at 10.1186/s13104-021-05674-w.
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Affiliation(s)
- Monika Niehof
- Department of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Nikolai-Fuchs-Str. 1, Hannover, 30625, Germany.
| | - Stella Marie Reamon-Buettner
- Department of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Nikolai-Fuchs-Str. 1, Hannover, 30625, Germany
| | - Olga Danov
- Department of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Nikolai-Fuchs-Str. 1, Hannover, 30625, Germany
| | - Tanja Hansen
- Department of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Nikolai-Fuchs-Str. 1, Hannover, 30625, Germany
| | - Katherina Sewald
- Department of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Nikolai-Fuchs-Str. 1, Hannover, 30625, Germany
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Modulation of microRNome by Human Cytomegalovirus and Human Herpesvirus 6 Infection in Human Dermal Fibroblasts: Possible Significance in the Induction of Fibrosis in Systemic Sclerosis. Cells 2021; 10:cells10051060. [PMID: 33946985 PMCID: PMC8146000 DOI: 10.3390/cells10051060] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 02/07/2023] Open
Abstract
Human cytomegalovirus (HCMV) and Human herpesvirus 6 (HHV-6) have been reportedly suggested as triggers of the onset and/or progression of systemic sclerosis (SSc), a severe autoimmune disorder characterized by multi-organ fibrosis. The etiology and pathogenesis of SSc are still largely unknown but virological and immunological observations support a role for these beta-herpesviruses, and we recently observed a direct impact of HCMV and HHV-6 infection on the expression of cell factors associated with fibrosis at the cell level. Since miRNA expression has been found profoundly deregulated at the tissue level, here we aimed to investigate the impact on cell microRNome (miRNome) of HCMV and HHV-6 infection in in vitro infected primary human dermal fibroblasts, which represent one of the main SSc target cells. The analysis, performed by Taqman arrays detecting and quantifying 754 microRNAs (miRNAs), showed that both herpesviruses significantly modulated miRNA expression in infected cells, with evident early and late effects and deep modulation (>10 fold) of >40 miRNAs at each time post infection, including those previously recognized for their key function in fibrosis. The correlation between these in vitro results with in vivo observations is strongly suggestive of a role of HCMV and/or HHV-6 in the multistep pathogenesis of fibrosis in SSc and in the induction of fibrosis-signaling pathways finally leading to tissue fibrosis. The identification of specific miRNAs may open the way to their use as biomarkers for SSc diagnosis, assessment of disease progression and possible antifibrotic therapies.
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She YX, Yu QY, Tang XX. Role of interleukins in the pathogenesis of pulmonary fibrosis. Cell Death Discov 2021; 7:52. [PMID: 33723241 PMCID: PMC7960958 DOI: 10.1038/s41420-021-00437-9] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/22/2021] [Accepted: 02/13/2021] [Indexed: 12/11/2022] Open
Abstract
Interleukins, a group of cytokines participating in inflammation and immune response, are proved to be involved in the formation and development of pulmonary fibrosis. In this article, we reviewed the relationship between interleukins and pulmonary fibrosis from the clinical, animal, as well as cellular levels, and discussed the underlying mechanisms in vivo and in vitro. Despite the effects of interleukin-targeted treatment on experimental pulmonary fibrosis, clinical applications are lacking and unsatisfactory. We conclude that intervening in one type of interleukins with similar functions in IPF may not be enough to stop the development of fibrosis as it involves a complex network of regulation mechanisms. Intervening interleukins combined with other existing therapy or targeting interleukins affecting multiple cells/with different functions at the same time may be one of the future directions. Furthermore, the intervention time is critical as some interleukins play different roles at different stages. Further elucidation on these aspects would provide new perspectives on both the pathogenesis mechanism, as well as the therapeutic strategy and drug development.
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Affiliation(s)
- Yi Xin She
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qing Yang Yu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiao Xiao Tang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
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Li J, Zhang X, Wang T, Li J, Su Q, Zhong C, Chen Z, Liang Y. The MIR155 host gene/microRNA-627/HMGB1/NF-κB loop modulates fibroblast proliferation and extracellular matrix deposition. Life Sci 2021; 269:119085. [PMID: 33482190 DOI: 10.1016/j.lfs.2021.119085] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/08/2021] [Accepted: 01/12/2021] [Indexed: 02/06/2023]
Abstract
Pulmonary fibrosis (PF), which is characterized by excessive matrix formation, may ultimately lead to irreversible lung damage and thus death. Fibroblast activation has been regarded as a central event during PF pathogenesis. In our previous study, we confirmed that the miR-627/high-mobility group box protein 1 (HMGB1)/Nuclear factor kappa beta (NF-κB) axis modulates transforming growth factor beta 1 (TGFβ1)-induced pulmonary fibrosis. In the present study, we investigated the upstream factors leading to miR-627 dysregulation in the process of pulmonary fibroblast activation and PF. The lncRNA MIR155 host gene (MIR155HG) was found to be abnormally upregulated in pulmonary fibrosis tissues and TGFβ1-stimulated normal human primary lung fibroblasts (NHLFs). By directly binding to miR-627, MIR155HG inhibited miR-627 expression. MIR155HG overexpression enhanced TGFβ1-induced increases in HMGB1 protein expression and p65 phosphorylation, NHLF proliferation, and extracellular matrix (ECM) deposition. In contrast, miR-627 overexpression attenuated the TGFβ1-induced changes in NHLFs and significantly reversed the effects of MIR155HG overexpression. Under TGFβ1 stimulation, miR-627 inhibition promoted, whereas JSH-23 treatment inhibited NF-κB activation; in NHLFs, NF-κB overexpression upregulated, whereas JSH-23 treatment downregulated MIR155HG expression. In tissue samples, HMGB1 protein levels and p65 phosphorylation were increased; MIR155HG was negatively correlated with miR-627 and positively correlated with HMGB1. In conclusion, we validated that the MIR155HG/miR-627/HMGB1/NF-κB axis formed a regulatory loop that modulates TGFβ1-induced NHLF activation. Considering the critical role of NHLF activation in PF pathogenesis, the NF-κB/MIR155HG/miR-627/HMGB1 regulatory loop could exert a vital effect on PF pathogenesis. Further in vivo and clinical investigations are required to confirm this model.
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Affiliation(s)
- Jie Li
- Department of Internal Medicine, Jiangxi Chest Hospital, Nanchang 330006, China
| | - Xueyu Zhang
- Department of Internal Medicine, Jiangxi Chest Hospital, Nanchang 330006, China
| | - Tao Wang
- Department of Thoracic Surgery, Jiangxi Chest Hospital, Nanchang 330006, China
| | - Jinghong Li
- Department of Internal Medicine, Jiangxi Chest Hospital, Nanchang 330006, China
| | - Qi Su
- Medical Department, Jiangxi Chest Hospital, Nanchang 330006, China
| | - Cheng Zhong
- Department of Internal Medicine, Jiangxi Chest Hospital, Nanchang 330006, China
| | - Zhongshu Chen
- Department of Thoracic Surgery, Jiangxi Chest Hospital, Nanchang 330006, China.
| | - Ying Liang
- Department of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China.
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Epstein Shochet G, Israeli-Shani L, Kains I, Wand O, Shitrit D. MiR-608 overexpression in idiopathic pulmonary fibrosis (IPF). BMC Pulm Med 2021; 21:1. [PMID: 33402146 PMCID: PMC7786457 DOI: 10.1186/s12890-020-01377-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/09/2020] [Indexed: 11/17/2022] Open
Abstract
Background Idiopathic pulmonary fibrosis (IPF) is a chronic progressive disease that causes scarring of the lungs. The disease is associated with the usual interstitial pneumonia pattern, which was not yet fully recapitulated by an animal model. Therefore, the disease is considered ‘human specific’. miRNA-608 is a primate specific miRNA with many potential targets, such CdC42 and Interlukin-6 (IL-6) that were previously implicated in IPF pathology.
Objective To test miR-608 expression and its targets in IPF patient samples. Methods RNA was extracted from Formalin fixed paraffin embedded tissue sections (N = 18). miRNA-608 and Cdc42 and IL-6 levels were analyzed by qPCR. Acetylcholinesterase (AChE) is another target of miRNA-608. Its’ rs17228616 allele has a single-nucleotide polymorphism causing weakened miR-608 interaction (C2098A). Thus, DNA was extracted from whole blood samples from 56 subjects with fibrosing interstitial lung disease and this region was sequenced for assessment of rs17228616 allele polymorphism. Results miR-608 is significantly overexpressed in IPF samples in comparison with controls (p < 0.05). Cdc42 and IL-6 levels were lower in the IPF patient samples compared with control samples (p < 0.001 and p < 0.05, respectively). The frequency of the rs17228616 minor A-allele was 17/56 (30.4%) with all patients being heterozygous. This result is significant vs. the published Israeli cohort of healthy individuals, which reported 17% prevalence of this allele in healthy control volunteers (p = 0.01, OR = 2.1, CI 95% [1.19–3.9]). Conclusion miR-608 is overexpressed in IPF patients. While the exact mechanism remains to be discovered, it could potentially promote fibrotic disease.
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Affiliation(s)
- Gali Epstein Shochet
- Pulmonary Department, Meir Medical Center, 59 Tchernichovsky St., 44281, Kfar Saba, Israel. .,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Lilach Israeli-Shani
- Pulmonary Department, Meir Medical Center, 59 Tchernichovsky St., 44281, Kfar Saba, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Isabelle Kains
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ori Wand
- Pulmonary Department, Meir Medical Center, 59 Tchernichovsky St., 44281, Kfar Saba, Israel
| | - David Shitrit
- Pulmonary Department, Meir Medical Center, 59 Tchernichovsky St., 44281, Kfar Saba, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Zhang L, Wu H, Zhao M, Lu Q. Meta‐analysis of differentially expressed microRNAs in systemic sclerosis. Int J Rheum Dis 2020; 23:1297-1304. [DOI: 10.1111/1756-185x.13924] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 06/27/2020] [Accepted: 06/28/2020] [Indexed: 02/07/2023]
Affiliation(s)
- Lian Zhang
- Department of Dermatology Hunan Key Laboratory of Medical Epigenomics Central South University Changsha China
| | - Haijing Wu
- Department of Dermatology Hunan Key Laboratory of Medical Epigenomics Central South University Changsha China
| | - Ming Zhao
- Department of Dermatology Hunan Key Laboratory of Medical Epigenomics Central South University Changsha China
| | - Qianjin Lu
- Department of Dermatology Hunan Key Laboratory of Medical Epigenomics Central South University Changsha China
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Fu J, Wu B, Zhong S, Deng W, Lin F. miR-29a-3p suppresses hepatic fibrosis pathogenesis by modulating hepatic stellate cell proliferation via targeting PIK3R3 gene expression. Biochem Biophys Res Commun 2020; 529:922-929. [PMID: 32819600 DOI: 10.1016/j.bbrc.2020.06.102] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 06/21/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Hepatic stellate cells (HSC) activation and proliferation mediated the pathogenic development of hepatic fibrosis (HF). However, the underlying mechanisms remain poorly understood. In this study, we aimed to investigate the miR-29a-3p and its effects on PIK3R3 expression in HF pathogenesis. METHODS LX-2 cells treated with TGF-β1 was used as the in vitro HF model. The expression of microRNAs and proteins in LX-2 cells were detected by quantitative RT-PCR and western blotting. Then, miR-29a-3p expression in LX-2 cells were altered via transfection with specific mimics or inhibitors, followed by cell proliferation measured through CCK-8, Edu staining and colony formation. The dual luciferase reporter assay was done to assess binding of miR-29a-3p with PIK3R3 gene sequences. Moreover, PIK3R3 gene overexpression in LX-2 cell was realized through transfection with recombinant pcDNA3.0-PIK3R3 plasmids. RESULTS Successful establishment of cellular HF model was validated through the increased Col-I and a-SMA expression in TGF-β1-treated LX-2 cells shown by qRT-PCR and Western blot. In such model, miR-29a-3p expression in LX-2 cells showed the greatest decrease among four candidate microRNAs in response to TGF-β1 treatment. Also, miR-29a-3p directly binds with the 3' UTR region of the PIK3R3 gene to suppress its expression in LX-2 cells. Furthermore, PIK3R3 gene overexpression effectively abrogated the changes of LX-2 cell proliferation, AKT phosphorylation and Col-I and a-SMA expression caused by miR-29a-3p mimics. CONCLUSION MiR-29a-3p regulates hepatic stellate cell proliferation and hepatic fibrosis pathogenesis by targeting PIK3R3 expression and modulating the PI-3K/AKT signaling.
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Affiliation(s)
- Juan Fu
- Department of Infectious Disease, Hainan General Hospital, Haikou, China.
| | - Biao Wu
- Department of Infectious Disease, Hainan General Hospital, Haikou, China
| | - Shaohua Zhong
- Department of Infectious Disease, Hainan General Hospital, Haikou, China
| | - Wei Deng
- Department of Oral and Maxillofacial Surgery, Hainan General Hospital, Haikou, Hainan, China
| | - Feng Lin
- Department of Infectious Disease, Hainan General Hospital, Haikou, China
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24
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Sun C, Zhang H, Wang X, Liu X. Ligamentum flavum fibrosis and hypertrophy: Molecular pathways, cellular mechanisms, and future directions. FASEB J 2020; 34:9854-9868. [PMID: 32608536 DOI: 10.1096/fj.202000635r] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/03/2020] [Accepted: 06/08/2020] [Indexed: 12/11/2022]
Abstract
Hypertrophy of ligamentum flavum (LF), along with disk protrusion and facet joints degeneration, is associated with the development of lumbar spinal canal stenosis (LSCS). Of note, LF hypertrophy is deemed as an important cause of LSCS. Histologically, fibrosis is proved to be the main pathology of LF hypertrophy. Despite the numerous studies explored the mechanisms of LF fibrosis at the molecular and cellular levels, the exact mechanism remains unknown. It is suggested that pathophysiologic stimuli such as mechanical stress, aging, obesity, and some diseases are the causative factors. Then, many cytokines and growth factors secreted by LF cells and its surrounding tissues play different roles in activating the fibrotic response. Here, we summarize the current status of detailed knowledge available regarding the causative factors, pathology, molecular and cellular mechanisms implicated in LF fibrosis and hypertrophy, also focusing on the possible avenues for anti-fibrotic strategies.
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Affiliation(s)
- Chao Sun
- Department of Spine Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Han Zhang
- Department of Spine Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Xiang Wang
- Department of Spine Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Xinhui Liu
- Department of Spine Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
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25
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Zhang K, Yang R, Chen J, Qi E, Zhou S, Wang Y, Fu Q, Chen R, Fang X. Let-7i-5p Regulation of Cell Morphology and Migration Through Distinct Signaling Pathways in Normal and Pathogenic Urethral Fibroblasts. Front Bioeng Biotechnol 2020; 8:428. [PMID: 32478052 PMCID: PMC7240038 DOI: 10.3389/fbioe.2020.00428] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 04/14/2020] [Indexed: 12/05/2022] Open
Abstract
microRNAs regulate subcellular functions through distinct molecular mechanisms. In this study, we used normal and pathogenic fibroblasts in pelvic fracture urethral distraction defects (PFUDD) patients. PFUDD is a common disease that could severely affect patients’ life quality, yet little is known about the molecular mechanism associated with pathogenic fibrosis in PFUDD. Our data showed that let-7i-5p performs a multi-functional role in distinct signaling transduction pathways involved in cell morphology and cell migration in both normal and pathogenic fibroblasts. By analyzing the molecular mechanism associated with its functions, we found that let-7i-5p regulates through its direct target genes involved in collagen metabolism, cell proliferation and differentiation, TGF-beta signaling, DNA repair and ubiquitination, gene silencing and oxygen homeostasis. We conclude that let-7i-5p plays an essential role in regulating cell shape and tissue elasticity, cell migration, cell morphology and cytoskeleton, and could serve as a potential target for clinical treatment of urethral stricture patients.
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Affiliation(s)
- Kaile Zhang
- The Department of Urology, Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Eastern Institute of Urologic Reconstruction, Shanghai, China
| | - Ranxin Yang
- The Department of Urology, Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Eastern Institute of Urologic Reconstruction, Shanghai, China
| | - Jun Chen
- The Department of Urology, Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Eastern Institute of Urologic Reconstruction, Shanghai, China
| | - Er Qi
- Shanghai Xuhui District Xietu Street Community Health Service Center, Shanghai, China
| | - Shukui Zhou
- The Department of Urology, Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ying Wang
- The Department of Urology, Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Qiang Fu
- The Department of Urology, Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Eastern Institute of Urologic Reconstruction, Shanghai, China
| | - Rong Chen
- The Department of Urology, Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Eastern Institute of Urologic Reconstruction, Shanghai, China
| | - Xiaolan Fang
- The Department of Urology, Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Eastern Institute of Urologic Reconstruction, Shanghai, China.,Shanghai Xuhui District Xietu Street Community Health Service Center, Shanghai, China
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26
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Interactions between the MicroRNAs and Microbiota in Cancer Development: Roles and Therapeutic Opportunities. Cancers (Basel) 2020; 12:cancers12040805. [PMID: 32230762 PMCID: PMC7225936 DOI: 10.3390/cancers12040805] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 02/06/2023] Open
Abstract
The human microbiota is made up of the fungi, bacteria, protozoa and viruses cohabiting within the human body. An altered microbiota can provoke diseases such as cancer. The mechanisms by which a modified microbiota can intervene in the onset and progression of neoplastic diseases are manifold. For instance, these include the effects on the immune system and the onset of obesity. A different mechanism seems to be constituted by the continuous and bidirectional relationships existing between microbiota and miRNAs. MiRNAs emerged as a novel group of small endogenous non-coding RNAs from that control gene expression. Several works seem to confirm the presence of a close connection between microbiota and miRNAs. Although the main literature data concern the correlations between microbiota, miRNAs and colon cancer, several researches have revealed the presence of connections with other types of tumour, including the ovarian tumour, cervical carcinoma, hepatic carcinoma, neoplastic pathologies of the central nervous system and the possible implication of the microbiota-miRNAs system on the response to the treatment of neoplastic pathologies. In this review, we summarise the physiological and pathological functions of the microbiota on cancer onset by governing miRNA production. A better knowledge of the bidirectional relationships existing between microbiota and miRNAs could provide new markers for the diagnosis, staging and monitoring of cancer and seems to be a promising approach for antagomir-guided approaches as therapeutic agents.
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27
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Bonhomme O, André B, Gester F, de Seny D, Moermans C, Struman I, Louis R, Malaise M, Guiot J. Biomarkers in systemic sclerosis-associated interstitial lung disease: review of the literature. Rheumatology (Oxford) 2020; 58:1534-1546. [PMID: 31292645 PMCID: PMC6736409 DOI: 10.1093/rheumatology/kez230] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 05/09/2019] [Indexed: 12/18/2022] Open
Abstract
SSc is a rare disease of unknown origin associated with multiple organ involvement. One of the major complications that drives the mortality of SSc patients is interstitial lung disease. The course of SSc-interstitial lung disease progression has a wide spectrum. Since the treatment is based on aggressive immunosuppression it should not be given to stable or non-progressing disease. The correct identification of disease with high risk of progression remains a challenge for early therapeutic intervention, and biomarkers remain urgently needed. In fact, eight categories of biomarkers have been identified and classified according to the different biological pathways involved. The purpose of this article is to describe the main biomarkers thought to be of interest with clinical value in the diagnosis and prognosis of SSc-interstitial lung disease.
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Affiliation(s)
| | | | | | | | | | - Ingrid Struman
- Molecular Angiogenesis Laboratory, GIGA R, University of Liege, Liège, Belgium
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28
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DROSHA-Dependent miRNA and AIM2 Inflammasome Activation in Idiopathic Pulmonary Fibrosis. Int J Mol Sci 2020; 21:ijms21051668. [PMID: 32121297 PMCID: PMC7084700 DOI: 10.3390/ijms21051668] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/23/2020] [Accepted: 02/27/2020] [Indexed: 12/11/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive interstitial lung disease. Chronic lung inflammation is linked to the pathogenesis of IPF. DROSHA, a class 2 ribonuclease III enzyme, has an important role in the biogenesis of microRNA (miRNA). The function of miRNAs has been identified in the regulation of the target gene or protein related to inflammatory responses via degradation of mRNA or inhibition of translation. The absent-in-melanoma-2 (AIM2) inflammasome is critical for inflammatory responses against cytosolic double stranded DNA (dsDNA) from pathogen-associated molecular patterns (PAMPs) and self-DNA from danger-associated molecular patterns (DAMPs). The AIM2 inflammasome senses double strand DNA (dsDNA) and interacts with the adaptor apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), which recruits pro-caspase-1 and regulates the maturation and secretion of interleukin (IL)-1β and IL-18. A recent study showed that inflammasome activation contributes to lung inflammation and fibrogenesis during IPF. In the current review, we discuss recent advances in our understanding of the DROSHA-miRNA-AIM2 inflammasome axis in the pathogenesis of IPF.
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Perelas A, Silver RM, Arrossi AV, Highland KB. Systemic sclerosis-associated interstitial lung disease. THE LANCET RESPIRATORY MEDICINE 2020; 8:304-320. [PMID: 32113575 DOI: 10.1016/s2213-2600(19)30480-1] [Citation(s) in RCA: 182] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/19/2019] [Accepted: 12/19/2019] [Indexed: 12/15/2022]
Abstract
Systemic sclerosis is an autoimmune connective tissue disease, which is characterised by immune dysregulation and progressive fibrosis that typically affects the skin, with variable internal organ involvement. It is a rare condition that affects mostly young and middle-aged women, resulting in disproportionate morbidity and mortality. Currently, interstitial lung disease is the most common cause of death among patients with systemic sclerosis, with a prevalence of up to 30% and a 10-year mortality of up to 40%. Interstitial lung disease is more common among African Americans and in people with the diffuse cutaneous form of systemic sclerosis or anti-topoisomerase 1 antibodies. Systemic sclerosis-associated interstitial lung disease most commonly presents with dyspnoea, cough, and a non-specific interstitial pneumonia pattern on CT scan, with a minority of cases fulfilling the criteria for usual interstitial pneumonia. The standard therapy has traditionally been combinations of immunosuppressants, particularly mycophenolate mofetil or cyclophosphamide. These immunosuppressants can be supplemented by targeted biological and antifibrotic therapies, whereas autologous haematopoietic stem-cell transplantation and lung transplantation are reserved for refractory cases.
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Affiliation(s)
- Apostolos Perelas
- Division of Pulmonary and Critical Care Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Richard M Silver
- Division of Rheumatology and Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Andrea V Arrossi
- Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
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30
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Virakul S, Somparn P, Pisitkun T, van der Spek PJ, Dalm VASH, Paridaens D, van Hagen PM, Hirankarn N, Palaga T, Dik WA. Integrative Analysis of Proteomics and DNA Methylation in Orbital Fibroblasts From Graves' Ophthalmopathy. Front Endocrinol (Lausanne) 2020; 11:619989. [PMID: 33658982 PMCID: PMC7919747 DOI: 10.3389/fendo.2020.619989] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/21/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Graves' ophthalmopathy (GO) is a frequent extrathyroidal complication of Graves' hyperthyroidism. Orbital fibroblasts contribute to both orbital tissue inflammation and remodeling in GO, and as such are crucial cellular elements in active GO and inactive GO. However, so far it is largely unknown whether GO disease progression is associated with functional reprogramming of the orbital fibroblast effector function. Therefore, the aim of this study was to compare both the proteome and global DNA methylation patterns between orbital fibroblasts isolated from active GO, inactive GO and healthy controls. METHODS Orbital fibroblasts from inactive GO (n=5), active GO (n=4) and controls (n=5) were cultured and total protein and DNA was isolated. Labelled and fractionated proteins were analyzed with a liquid chromatography tandem-mass spectrometer (LC-MS/MS). Data are available via ProteomeXchange with identifier PXD022257. Furthermore, bisulphite-treated DNA was analyzed for methylation pattern with the Illumina Infinium Human Methylation 450K beadchip. In addition, RNA was isolated from the orbital fibroblasts for real-time quantitative (RQ)-PCR. Network and pathway analyses were performed. RESULTS Orbital fibroblasts from active GO displayed overexpression of proteins that are typically involved in inflammation, cellular proliferation, hyaluronan synthesis and adipogenesis, while various proteins associated with extracellular matrix (ECM) biology and fibrotic disease, were typically overexpressed in orbital fibroblasts from inactive GO. Moreover, orbital fibroblasts from active GO displayed hypermethylation of genes that linked to inflammation and hypomethylated genes that linked to adipogenesis and autoimmunity. Further analysis revealed networks that contained molecules to which both hypermethylated and hypomethylated genes were linked, including NF-κB, ERK1/2, Alp, RNA polymerase II, Akt and IFNα. In addition, NF-κB, Akt and IFNα were also identified in networks that were derived from the differentially expressed proteins. Generally, poor correlation between protein expression, DNA methylation and mRNA expression was observed. CONCLUSIONS Both the proteomics and DNA methylation data support that orbital fibroblasts from active GO are involved in inflammation, adipogenesis, and glycosaminoglycan production, while orbital fibroblasts from inactive disease are more skewed towards an active role in extracellular matrix remodeling. This switch in orbital fibroblast effector function may have therapeutic implications and further studies into the underlying mechanism are thus warranted.
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Affiliation(s)
- Sita Virakul
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Poorichaya Somparn
- Center of Excellence in Systems Biology, Research affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Trairak Pisitkun
- Center of Excellence in Systems Biology, Research affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Peter J. van der Spek
- Department of Bioinformatics, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Virgil A. S. H. Dalm
- Department of Immunology, Laboratory Medical Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
- Department of Internal Medicine, Division of Clinical Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Dion Paridaens
- Rotterdam Eye Hospital, Rotterdam, Netherlands
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, Netherlands
| | - P. Martin van Hagen
- Department of Immunology, Laboratory Medical Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
- Department of Internal Medicine, Division of Clinical Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
- Rotterdam Eye Hospital, Rotterdam, Netherlands
| | - Nattiya Hirankarn
- Center of Excellence in Immunology and Immune Mediated Diseases, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Tanapat Palaga
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Willem A. Dik
- Department of Immunology, Laboratory Medical Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
- *Correspondence: Willem A. Dik,
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32
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Tang H, Mao J, Ye X, Zhang F, Kerr WG, Zheng T, Zhu Z. SHIP-1, a target of miR-155, regulates endothelial cell responses in lung fibrosis. FASEB J 2019; 34:2011-2023. [PMID: 31907997 DOI: 10.1096/fj.201902063r] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/22/2019] [Accepted: 11/01/2019] [Indexed: 12/12/2022]
Abstract
Src Homology 2-containing Inositol Phosphatase-1 (SHIP-1) is a target of miR-155, a pro-inflammatory factor. Deletion of the SHIP-1 gene in mice caused spontaneous lung inflammation and fibrosis. However, the role and function of endothelial miR-155 and SHIP-1 in lung fibrosis remain unknown. Using whole-body miR-155 knockout mice and endothelial cell-specific conditional miR-155 (VEC-Cre-miR-155 or VEC-miR-155) or SHIP-1 (VEC-SHIP-1) knockout mice, we assessed endothelial-mesenchymal transition (EndoMT) and fibrotic responses in bleomycin (BLM) induced lung fibrosis models. Primary mouse lung endothelial cells (MLEC) and human umbilical vein endothelial cells (HUVEC) with SHIP-1 knockdown were analyzed in TGF-β1 or BLM, respectively, induced fibrotic responses. Fibrosis and EndoMT were significantly reduced in miR-155KO mice and changes in EndoMT markers in MLEC after TGF-β1 stimulation confirmed the in vivo findings. Furthermore, lung fibrosis and EndoMT responses were reduced in VEC-miR-155 mice but significantly enhanced in VEC-SHIP-1 mice after BLM challenge. SHIP-1 knockdown in HUVEC cells resulted in enhanced EndoMT induced by BLM. Meanwhile, these changes involved the PI3K/AKT, JAK/STAT3, and SMAD/STAT signaling pathways. These studies demonstrate that endothelial miR-155 plays an important role in fibrotic responses in the lung through EndoMT. Endothelial SHIP-1 is essential in controlling fibrotic responses and SHIP-1 is a target of miR-155. Endothelial cells are an integral part in lung fibrosis.
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Affiliation(s)
- Haiying Tang
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT, USA.,Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Jingwei Mao
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT, USA.,Department of Gastroenterology, First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Xujun Ye
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT, USA
| | - Fengrui Zhang
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT, USA
| | - William G Kerr
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Tao Zheng
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT, USA.,Department of Molecular Microbiology and Immunology, Brown University Warren Alpert Medical School, Providence, RI, USA
| | - Zhou Zhu
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT, USA.,Department of Molecular Microbiology and Immunology, Brown University Warren Alpert Medical School, Providence, RI, USA
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Sundar IK, Li D, Rahman I. Small RNA-sequence analysis of plasma-derived extracellular vesicle miRNAs in smokers and patients with chronic obstructive pulmonary disease as circulating biomarkers. J Extracell Vesicles 2019; 8:1684816. [PMID: 31762962 PMCID: PMC6848892 DOI: 10.1080/20013078.2019.1684816] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 09/24/2019] [Accepted: 10/20/2019] [Indexed: 12/12/2022] Open
Abstract
Extracellular vesicles (EVs) play a vital role in normal lung physiology to maintain homeostasis in the airways via intercellular communication. EVs include exosomes and microvesicles, and are characterized by their phospholipid bilayers. EVs have been recognized as novel circulating biomarkers of disease, which are released by different cell types. In this study, we used different EV isolation and purification methods to characterize the plasma-derived EV miRNAs from non-smokers, smokers and patients with COPD. A small RNA sequencing (RNA-seq) approach was adapted to identify novel circulating EV miRNAs. We found that plasma-derived EVs from non-smokers, smokers and patients with COPD vary in their size, concentration, distribution and phenotypic characteristics as confirmed by nanoparticle tracking analysis, transmission electron microscopy, and immunoblot analysis of EV surface markers. RNA-seq analysis confirmed the most abundant types of small RNAs, such as miRNAs, tRNAs, piRNAs snRNAs, snoRNAs and other biotypes in plasma-derived EVs. We mainly focused on miRNAs as novel biomarkers in smokers and patients with COPD for further analysis. Differential expression by DESeq2 identified distinct miRNA profiles (up-regulated: miR-22-3p, miR-99a-5p, miR-151a-5p, miR-320b, miR-320d; and down-regulated: miR-335-5p, miR-628-3p, miR-887-5p and miR-937-3p) in COPD versus smokers or non-smokers in a pairwise comparison. Gene set enrichment analysis (GSEA) of differentially expressed miRNAs revealed the top pathways, gene ontology and diseases associated with smokers and patients with COPD. We selectively validated miRNAs in EVs isolated from BEAS-2B cells treated with cigarette smoke extract by quantitative PCR analysis. For the first time, we report that plasma-derived EV miRNAs are novel circulating pulmonary disease biomarkers. Thus, molecular profiling of EV miRNAs has great translational potential for the development of biomarkers that may be used in the diagnosis, prognosis, and therapeutics of COPD.
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Affiliation(s)
- Isaac Kirubakaran Sundar
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Dongmei Li
- Department of Clinical & Translational Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Irfan Rahman
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA
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Ebrahimiyan H, Gharibdoost F, Aslani S, Kavosi H, Farsad F, Jamshidi A, Mahmoudi M. microRNAs are potentially regulating the survivin gene in PBMCs from systemic sclerosis patients. Mod Rheumatol 2019; 30:862-869. [PMID: 31441344 DOI: 10.1080/14397595.2019.1659545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background: Survivin is an important anti-apoptotic protein and is involved in increasing auto-reactivity during the autoimmune diseases like systemic sclerosis (SSc).Aims: In the current study, we investigate the expression level of total survivin (survivin-TS) and its three important variants alongside with evaluation of the expression level of important microRNAs (miRNAs) that are involved in survivin expression regulation.Methods: Peripheral blood mononuclear cells (PBMCs) were isolated from 50 healthy controls, 25 diffuse cutaneous SSc (DcSSc), and 25 limited cutaneous SSc (LcSSc) patients. RNA was extracted and single-strand cDNA was synthesized. Quantitative real-time PCR was used to evaluate the expression level of survivin-TS and its variants as well the miRNAs.Results: Overexpression of survivin-2B and downregulation of survivin wild-type (survivin-WT) were found in total-SSc patients; however, expression level of survivin-TS had no significant difference. The expression levels of miR-335-5p, miR-485-5p, miR-16-5p, miR-150-5p, miR-34a-5p, miR-218-5p and miR-708-5p were higher in total-SSc patients. Significantly negative correlations were found between transcript levels of miR-150-5p, miR-16-5p, and miR-485-5p with survivin-TS mRNA expression.Conclusion: Survivin variants had altered expression in total-SSc patients. In addition, miRNAs might potentially and negatively regulate the survivin-TS expression. Altered expression of survivin, regulated by miRNAs, may result in apoptosis resistance and auto-reactivity in lymphocytes from patients and have important roles in SSc pathogenicity.
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Affiliation(s)
- Hamidreza Ebrahimiyan
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Rheumatology Expert Group (REG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Farhad Gharibdoost
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Aslani
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Rheumatology Expert Group (REG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Hoda Kavosi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Faraneh Farsad
- Department of Rheumatology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Rheumatology Expert Group (REG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
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35
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He Y, Liu H, Wang S, Chen Y. In Silico Detection and Characterization of microRNAs and Their Target Genes in microRNA Microarray Datasets from Patients with Systemic Sclerosis-Interstitial Lung Disease. DNA Cell Biol 2019; 38:933-944. [PMID: 31361540 DOI: 10.1089/dna.2019.4780] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Interstitial lung disease (ILD) is the main reason of death in patients with systemic sclerosis (SSc). The potential microRNA (miRNA)-messenger RNA (mRNA) interaction networks of SSc-ILD from a systematic biological perspective are unclear. To characterize differentially expressed miRNAs (DE-miRNAs) and differentially expressed genes (DEGs) likely related to SSc-ILD, we downloaded the miRNA microarray dataset (GSE81923) and mRNA datasets (GSE76808 and GSE81292) from the Gene Expression Omnibus database. Comprehensive bioinformatic analyses were conducted to predict target genes for DE-miRNAs and generate an miRNA-hub gene network with SSc-ILD. In total, 26 DE-miRNAs were detected in SSc-ILD, among which 2 were upregulated and 24 were downregulated. Additionally, 178 common DEGs (55 upregulated and 123 downregulated) were identified. miRNAs were primarily enriched in pathways involving inflammation and regulation of fibroblasts. The hub genes identified were MMP7, IER2, HBEGF, CCL4, NFKBIA, JUNB, LIF, SERPINE1, FOSL1, and NAMPT. We discovered the miRNA-mediated regulatory network in SSc-ILD using an integrated bioinformatic analysis. The findings provide novel insight and expand our comprehension of the molecular mechanisms participating in the pathogenesis of SSc-ILD, along with identification of new potential diagnostic biomarkers.
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Affiliation(s)
- Yanqi He
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Han Liu
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Shuai Wang
- Department of Vascular Surgery, The First Hospital of Jilin University, Changchun, China
| | - Yu Chen
- Department of Cardiology, Hospital of the University of Electronic Science and Technology of China, and Sichuan Provincial People's Hospital, Chengdu, China
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36
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Maria ATJ, Partouche L, Goulabchand R, Rivière S, Rozier P, Bourgier C, Le Quellec A, Morel J, Noël D, Guilpain P. Intriguing Relationships Between Cancer and Systemic Sclerosis: Role of the Immune System and Other Contributors. Front Immunol 2019; 9:3112. [PMID: 30687318 PMCID: PMC6335319 DOI: 10.3389/fimmu.2018.03112] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/17/2018] [Indexed: 01/09/2023] Open
Abstract
Systemic sclerosis (SSc) is an autoimmune connective tissue disorder, characterized by multisystem involvement, vasculopathy, and fibrosis. An increased risk of malignancy is observed in SSc (including breast and lung cancers), and in a subgroup of patients with specific autoantibodies (i.e., anti-RNA polymerase III and related autoantibodies), SSc could be a paraneoplastic syndrome and might be directly related to an immune response against cancer. Herein, we reviewed the literature, focusing on the most recent articles, and shed light onto the potential relationship between cancer and scleroderma regarding temporal and immunological dimensions.
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Affiliation(s)
- Alexandre Thibault Jacques Maria
- Medical School, Montpellier University, Montpellier, France.,Department of Internal Medicine-Multiorganic Diseases, Local Referral Center for Auto-immune Diseases, Saint-Eloi Hospital, Montpellier University, Montpellier, France.,IRMB, INSERM, CHU Montpellier, Montpellier University, Montpellier, France
| | - Léo Partouche
- Medical School, Montpellier University, Montpellier, France.,Department of Internal Medicine-Multiorganic Diseases, Local Referral Center for Auto-immune Diseases, Saint-Eloi Hospital, Montpellier University, Montpellier, France
| | - Radjiv Goulabchand
- Medical School, Montpellier University, Montpellier, France.,Department of Internal Medicine-Multiorganic Diseases, Local Referral Center for Auto-immune Diseases, Saint-Eloi Hospital, Montpellier University, Montpellier, France
| | - Sophie Rivière
- Department of Internal Medicine-Multiorganic Diseases, Local Referral Center for Auto-immune Diseases, Saint-Eloi Hospital, Montpellier University, Montpellier, France
| | - Pauline Rozier
- Medical School, Montpellier University, Montpellier, France.,Department of Internal Medicine-Multiorganic Diseases, Local Referral Center for Auto-immune Diseases, Saint-Eloi Hospital, Montpellier University, Montpellier, France.,IRMB, INSERM, CHU Montpellier, Montpellier University, Montpellier, France
| | - Céline Bourgier
- Medical School, Montpellier University, Montpellier, France.,Department of Radiation Oncology, INSERM U1194/IRCM, ICM-Val d'Aurelle, Montpellier, France
| | - Alain Le Quellec
- Medical School, Montpellier University, Montpellier, France.,Department of Internal Medicine-Multiorganic Diseases, Local Referral Center for Auto-immune Diseases, Saint-Eloi Hospital, Montpellier University, Montpellier, France
| | - Jacques Morel
- Medical School, Montpellier University, Montpellier, France.,Department of Rheumatology, Lapeyronie Hospital, Montpellier, France
| | - Danièle Noël
- IRMB, INSERM, CHU Montpellier, Montpellier University, Montpellier, France
| | - Philippe Guilpain
- Medical School, Montpellier University, Montpellier, France.,Department of Internal Medicine-Multiorganic Diseases, Local Referral Center for Auto-immune Diseases, Saint-Eloi Hospital, Montpellier University, Montpellier, France.,IRMB, INSERM, CHU Montpellier, Montpellier University, Montpellier, France
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37
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Salamo O, Mortaz E, Mirsaeidi M. Noncoding RNAs: New Players in Pulmonary Medicine and Sarcoidosis. Am J Respir Cell Mol Biol 2018; 58:147-156. [DOI: 10.1165/rcmb.2017-0196tr] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Oriana Salamo
- Division of Pulmonary and Critical Care, University of Miami, Miami, Florida
| | - Esmaeil Mortaz
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands; and
| | - Mehdi Mirsaeidi
- Division of Pulmonary and Critical Care, University of Miami, Miami, Florida
- Section of Pulmonary Medicine, Miami Veterans Affairs Healthcare System, Miami, Florida
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38
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Sun C, Tian J, Liu X, Guan G. MiR-21 promotes fibrosis and hypertrophy of ligamentum flavum in lumbar spinal canal stenosis by activating IL-6 expression. Biochem Biophys Res Commun 2017; 490:1106-1111. [PMID: 28669725 DOI: 10.1016/j.bbrc.2017.06.182] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 06/29/2017] [Indexed: 01/15/2023]
Abstract
The molecular mechanism underlying the fibrosis of ligamentum flavum(LF) in patients with lumbar spinal canal stenosis(LSCS) remains unknown. MicroRNAs are reported to play important roles in regulating fibrosis in different organs. The present study aimed to identify fibrosis related miR-21 expression profile and investigate the pathological process of miR-21 in the fibrosis of LF hypertrophy and associated regulatory mechanisms. 15 patients with LSCS underwent surgical treatment were enrolled in this study. For the control group, 11 patients with lumbar disc herniation(LDH) was included. The LF thickness was measured on MRI. LF samples were obtained during the surgery. Fibrosis score was assessed by Masson's trichrome staining. The expression of miR-21 in LF tissues were determined by RT-PCR. Correlation among LF thickness, fibrosis score, and miR-21 expression was analyzed. In addition, Lentiviral vectors for miR-21 mimic were constructed and transfected into LF cells to examine the role of miR-21 in LF fibrosis. Types I and III collagen were used as indicators of fibrosis. IL-6 expression in LF cells after transfection was investigated by RT-PCR and ELISA. Patients in two groups showed similar outcomes regarding age, gender, level of LF tissue. The thickness and fibrosis score of LF in the LSCS group were significantly greater than those in LDH group (all P < 0.05). Similarly, the expression of miR-21 in LSCS group was substantially higher than that in LDH group(P < 0.05). Furthermore, the miR-21 expression exhibited positive correlations with the LF thickness (r = 0.595, P < 0.05) and fibrosis score (r = 0.608, P < 0.05). Of note, miR-21 over-expression increased the expression levels of collagen I and III (P < 0.05). Also, IL-6 expression and secretion in LF cells was elevated after transfection of miR-21 mimic. MiR-21 is a fibrosis-associated miRNA and promotes inflammation in LF tissue by activating IL-6 expression, leading to LF fibrosis and hypertrophy.
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Affiliation(s)
- Chao Sun
- Department of Spine Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, China
| | - Jiwei Tian
- Department of Orthopedics, Shanghai General Hospital of Nanjing Medical University, Songjiang, 201600 Shanghai, China
| | - Xinhui Liu
- Department of Spine Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, China.
| | - Guoping Guan
- Department of Spine Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, China
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