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Ortega FG, Rio C, Jahn A, Gayá A, Calvo J, Monjo M, Montes-Worboys A, Molina-Molina M, Sala-Llinas E, Ramis JM. Antifibrotic Effects of Extracellular Vesicles From Umbilical Cord-Mesenchymal Stem Cells on Lung Myofibroblast Cells. Arch Bronconeumol 2023:S0300-2896(23)00020-0. [PMID: 36822880 DOI: 10.1016/j.arbres.2023.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/06/2023] [Accepted: 01/30/2023] [Indexed: 02/07/2023]
Affiliation(s)
- Francisco G Ortega
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain; Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), Ctra. Valldemossa km 7.5, 07122 Palma, Spain; IBS Granada, Instituto de Investigación Biosanitaria de Granada, 18012 Granada, Spain; Unidad de Gestión Clínica Cartuja, Distrito Sanitario Granada-Metropolitano, 18013 Granada, Spain
| | - Carlos Rio
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Andreas Jahn
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Antonio Gayá
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain; Fundació Banc de Sang i Teixits de les Illes Balears (FBSTIB), 07004 Palma, Spain
| | - Javier Calvo
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain; Fundació Banc de Sang i Teixits de les Illes Balears (FBSTIB), 07004 Palma, Spain
| | - Marta Monjo
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain; Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), Ctra. Valldemossa km 7.5, 07122 Palma, Spain; Department of Fundamental Biology and Health Sciences, University of the Balearic Islands (UIB), Ctra. Valldemossa km 7.5, 07122 Palma, Spain.
| | - Ana Montes-Worboys
- ILD Unit, Respiratory Department, University Hospital of Bellvitge, Pneumology Research Group, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain
| | - Maria Molina-Molina
- ILD Unit, Respiratory Department, University Hospital of Bellvitge, Pneumology Research Group, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain
| | - Ernest Sala-Llinas
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain; ILD Unit, Respiratory Department, University Hospital of Bellvitge, Pneumology Research Group, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain; Respiratory Department, Hospital Universitari Son Espases, 07010 Palma de Mallorca, Spain
| | - Joana M Ramis
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain; Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), Ctra. Valldemossa km 7.5, 07122 Palma, Spain; Department of Fundamental Biology and Health Sciences, University of the Balearic Islands (UIB), Ctra. Valldemossa km 7.5, 07122 Palma, Spain.
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Cell-Specific Response of NSIP- and IPF-Derived Fibroblasts to the Modification of the Elasticity, Biological Properties, and 3D Architecture of the Substrate. Int J Mol Sci 2022; 23:ijms232314714. [PMID: 36499041 PMCID: PMC9738992 DOI: 10.3390/ijms232314714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 11/26/2022] Open
Abstract
The fibrotic fibroblasts derived from idiopathic pulmonary fibrosis (IPF) and nonspecific interstitial pneumonia (NSIP) are surrounded by specific environments, characterized by increased stiffness, aberrant extracellular matrix (ECM) composition, and altered lung architecture. The presented research was aimed at investigating the effect of biological, physical, and topographical modification of the substrate on the properties of IPF- and NSIP-derived fibroblasts, and searching for the parameters enabling their identification. Soft and stiff polydimethylsiloxane (PDMS) was chosen for the basic substrates, the properties of which were subsequently tuned. To obtain the biological modification of the substrates, they were covered with ECM proteins, laminin, fibronectin, and collagen. The substrates that mimicked the 3D structure of the lungs were prepared using two approaches, resulting in porous structures that resemble natural lung architecture and honeycomb patterns, typical of IPF tissue. The growth of cells on soft and stiff PDMS covered with proteins, traced using fluorescence microscopy, confirmed an altered behavior of healthy and IPF- and NSIP-derived fibroblasts in response to the modified substrate properties, enabling their identification. In turn, differences in the mechanical properties of healthy and fibrotic fibroblasts, determined using atomic force microscopy working in force spectroscopy mode, as well as their growth on 3D-patterned substrates were not sufficient to discriminate between cell lines.
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Aghali A, Khalfaoui L, Lagnado AB, Drake LY, Teske JJ, Pabelick CM, Passos JF, Prakash YS. Cellular senescence is increased in airway smooth muscle cells of elderly persons with asthma. Am J Physiol Lung Cell Mol Physiol 2022; 323:L558-L568. [PMID: 36166734 PMCID: PMC9639764 DOI: 10.1152/ajplung.00146.2022] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 09/05/2022] [Accepted: 09/22/2022] [Indexed: 11/22/2022] Open
Abstract
Senescent cells can drive age-related tissue dysfunction partially via a senescence-associated secretory phenotype (SASP) involving proinflammatory and profibrotic factors. Cellular senescence has been associated with a structural and functional decline during normal lung aging and age-related diseases such as chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF). Asthma in the elderly (AIE) represents a major healthcare burden. AIE is associated with bronchial airway hyperresponsiveness and remodeling, which involves increased cell proliferation and higher rates of fibrosis, and resistant to standard therapy. Airway smooth muscle (ASM) cells play a major role in asthma such as remodeling via modulation of inflammation and the extracellular matrix (ECM) environment. Whether senescent ASM cells accumulate in AIE and contribute to airway structural or functional changes is unknown. Lung tissues from elderly persons with asthma showed greater airway fibrosis compared with age-matched elderly persons with nonasthma and young age controls. Lung tissue or isolated ASM cells from elderly persons with asthma showed increased expression of multiple senescent markers including phospho-p53, p21, telomere-associated foci (TAF), as well as multiple SASP components. Senescence and SASP components were also increased with aging per se. These data highlight the presence of cellular senescence in AIE that may contribute to airway remodeling.
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Affiliation(s)
- Arbi Aghali
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Latifa Khalfaoui
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota
| | - Anthony B. Lagnado
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Li Y. Drake
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota
| | - Jacob J. Teske
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota
| | - Christina M. Pabelick
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota
| | - João F. Passos
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Y. S. Prakash
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota
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Sari E, He C, Margaroli C. Plasticity towards Rigidity: A Macrophage Conundrum in Pulmonary Fibrosis. Int J Mol Sci 2022; 23:11443. [PMID: 36232756 PMCID: PMC9570276 DOI: 10.3390/ijms231911443] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive, chronic, and ultimately fatal diffuse parenchymal lung disease. The molecular mechanisms of fibrosis in IPF patients are not fully understood and there is a lack of effective treatments. For decades, different types of drugs such as immunosuppressants and antioxidants have been tested, usually with unsuccessful results. Although two antifibrotic drugs (Nintedanib and Pirfenidone) are approved and used for the treatment of IPF, side effects are common, and they only slow down disease progression without improving patients' survival. Macrophages are central to lung homeostasis, wound healing, and injury. Depending on the stimulus in the microenvironment, macrophages may contribute to fibrosis, but also, they may play a role in the amelioration of fibrosis. In this review, we explore the role of macrophages in IPF in relation to the fibrotic processes, epithelial-mesenchymal transition (EMT), and their crosstalk with resident and recruited cells and we emphasized the importance of macrophages in finding new treatments.
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Affiliation(s)
- Ezgi Sari
- Department of Medicine, Division of Pulmonary, Allergy & Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Chao He
- Department of Medicine, Division of Pulmonary, Allergy & Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Camilla Margaroli
- Department of Pathology, Division of Cellular and Molecular Pathology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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Lin GW, Liang YC, Wu P, Chen CK, Lai YC, Jiang TX, Haung YH, Chuong CM. Regional specific differentiation of integumentary organs: SATB2 is involved in α- and β-keratin gene cluster switching in the chicken. Dev Dyn 2022; 251:1490-1508. [PMID: 34240503 PMCID: PMC8742846 DOI: 10.1002/dvdy.396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/30/2021] [Accepted: 06/30/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Animals develop skin regional specificities to best adapt to their environments. Birds are excellent models in which to study the epigenetic mechanisms that facilitate these adaptions. Patients suffering from SATB2 mutations exhibit multiple defects including ectodermal dysplasia-like changes. The preferential expression of SATB2, a chromatin regulator, in feather-forming compared to scale-forming regions, suggests it functions in regional specification of chicken skin appendages by acting on either differentiation or morphogenesis. RESULTS Retrovirus mediated SATB2 misexpression in developing feathers, beaks, and claws causes epidermal differentiation abnormalities (e.g. knobs, plaques) with few organ morphology alterations. Chicken β-keratins are encoded in 5 sub-clusters (Claw, Feather, Feather-like, Scale, and Keratinocyte) on Chromosome 25 and a large Feather keratin cluster on Chromosome 27. Type I and II α-keratin clusters are located on Chromosomes 27 and 33, respectively. Transcriptome analyses showed these keratins (1) are often tuned up or down collectively as a sub-cluster, and (2) these changes occur in a temporo-spatial specific manner. CONCLUSIONS These results suggest an organizing role of SATB2 in cluster-level gene co-regulation during skin regional specification.
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Affiliation(s)
- Gee-Way Lin
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Ya-Chen Liang
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Integrative Stem Cell Center, China Medical University and Hospital, China Medical University, Taichung 40447, Taiwan
| | - Ping Wu
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Chih-Kuan Chen
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- The IEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung 402204, Taiwan
| | - Yung-Chih Lai
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Integrative Stem Cell Center, China Medical University and Hospital, China Medical University, Taichung 40447, Taiwan
- Institute of New Drug Development, China Medical University, Taichung 40402, Taiwan
| | - Ting-Xin Jiang
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Yen-Hua Haung
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- TMU Research Center of Cell Therapy and Regeneration Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Cheng-Ming Chuong
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
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Piao C, Zhuang C, Ko MK, Hwang DW, Lee M. Pulmonary delivery of a recombinant RAGE antagonist peptide derived from high-mobility group box-1 in a bleomycin-induced pulmonary fibrosis animal model. J Drug Target 2022; 30:792-799. [PMID: 35451894 DOI: 10.1080/1061186x.2022.2069781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is an interstitial lung disease characterized by irreversible fibrosis and destruction of the alveolar structure. Receptor for advanced glycation end-products (RAGE) has been identified as one of the key molecules involved in IPF pathogenesis. A RAGE antagonist peptide (RAP) was developed based on the RAGE-binding domain of high mobility group box-1 (HMGB-1). Anti-IPF effects of RAP were evaluated in a bleomycin-induced mouse model of IPF. Bleomycin was administered intratracheally, and then RAP was administrated twice by intratracheal instillation, 1 and 3 days after bleomycin challenge. Seven days after the bleomycin challenge, the mice were sacrificed and the lungs were harvested. The results showed that pulmonary hydroxyproline was reduced in mice administered RAP compared with the control group. Tumor growth factor-β (TGF-β), α-smooth muscle actin (α-SMA), and collagen were also reduced by RAP administration in a dose-dependent manner. Longer-term effects of RAP were investigated in mice challenged with bleomycin. RAP was administered intratracheally every 7 days for 28 days, after which lung samples were harvested and analyzed. The results showed that hydroxyproline, TGF-β, α-SMA, and collagen were reduced by repeated RAP administration. Taken together, the results suggest that RAP is useful for treatment of IPF.
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Affiliation(s)
- Chunxian Piao
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul 04763, Korea
| | - Chuanyu Zhuang
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul 04763, Korea
| | - Min Kyung Ko
- THERABEST, Co, Inc. Seocho-daero 40-gil, Seoul 06657, Korea
| | - Do Won Hwang
- THERABEST, Co, Inc. Seocho-daero 40-gil, Seoul 06657, Korea
| | - Minhyung Lee
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul 04763, Korea
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Kou L, Kou P, Luo G, Wei S. Progress of Statin Therapy in the Treatment of Idiopathic Pulmonary Fibrosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6197219. [PMID: 35345828 PMCID: PMC8957418 DOI: 10.1155/2022/6197219] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/24/2022] [Indexed: 11/18/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a type of interstitial lung disease (ILD) characterized by the proliferation of fibroblasts and aberrant accumulation of extracellular matrix. These changes are accompanied by structural destruction of the lung tissue and the progressive decline of pulmonary function. In the past few decades, researchers have investigated the pathogenesis of IPF and sought a therapeutic approach for its treatment. Some studies have shown that the occurrence of IPF is related to pulmonary inflammatory injury; however, its specific etiology and pathogenesis remain unknown, and no effective treatment, with the exception of lung transplantation, has been identified yet. Several basic science and clinical studies in recent years have shown that statins, the traditional lipid-lowering drugs, exert significant antifibrotic effects, which can delay the progression of IPF and impairment of pulmonary function. This article is aimed at summarizing the current understanding of the pathogenesis of IPF, the progress of research on the use of statins in IPF models and clinical trials, and its main molecular targets.
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Affiliation(s)
- Leiya Kou
- Department of Respiratory Medicine, Wuhan No. 1 Hospital, Wuhan 430022, China
- Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Pei Kou
- Department of Medical Record, Wuhan No. 1 Hospital, Wuhan 430022, China
| | - Guangwei Luo
- Department of Respiratory Medicine, Wuhan No. 1 Hospital, Wuhan 430022, China
| | - Shuang Wei
- Department of Respiratory and Critical Care Medicine, Tongji Hospital Tongji Medical College Huazhong University of Science and Technology, Wuhan 430030, China
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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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Jeong J, Choi J. Advancing the Adverse Outcome Pathway for PPARγ Inactivation Leading to Pulmonary Fibrosis Using Bradford-Hill Consideration and the Comparative Toxicogenomics Database. Chem Res Toxicol 2022; 35:233-243. [PMID: 35143163 DOI: 10.1021/acs.chemrestox.1c00257] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pulmonary fibrosis is regulated by transforming growth factor-β (TGF-β) and peroxisome proliferator-activated receptor-gamma (PPARγ). An adverse outcome pathway (AOP) for PPARγ inactivation leading to pulmonary fibrosis has been previously developed. To advance the development of this AOP, the confidence of the overall AOP was assessed using the Bradford-Hill considerations as per the recommendations from the Organisation for Economic Co-operation and Development (OECD) Users' Handbook. Overall, the essentiality of key events (KEs) and the biological plausibility of key event relationships (KERs) were rated high. In contrast, the empirical support of KERs was found to be moderate. To experimentally evaluate the KERs from the molecular initiating event (MIE) and KE1, PPARγ (MIE) and TGF-β (KE1) inhibitors were used to examine the effects of downstream events following inhibition of their upstream events. PPARγ inhibition (MIE) led to TGF-β activation (KE1), upregulation in vimentin expression (KE3), and an increase in the fibronectin level (KE4). Similarly, activated TGF-β (KE1) led to an increase in vimentin (KE3) and fibronectin expression (KE4). In the database analysis using the Comparative Toxicogenomics Database, 31 genes related to each KE were found to be highly correlated with pulmonary fibrosis, and the top 21 potential stressors were suggested. The AOP for pulmonary fibrosis evaluated in this study will be the basis for the screening of inhaled toxic substances in the environment.
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Affiliation(s)
- Jaeseong Jeong
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Republic of Korea
| | - Jinhee Choi
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Republic of Korea
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Reyes-Jiménez E, Ramírez-Hernández AA, Santos-Álvarez JC, Velázquez-Enríquez JM, Pina-Canseco S, Baltiérrez-Hoyos R, Vásquez-Garzón VR. Involvement of 4-hydroxy-2-nonenal in the pathogenesis of pulmonary fibrosis. Mol Cell Biochem 2021; 476:4405-4419. [PMID: 34463938 DOI: 10.1007/s11010-021-04244-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 08/12/2021] [Indexed: 01/19/2023]
Abstract
Pulmonary fibrosis is a chronic progressive disease with high incidence, prevalence, and mortality rates worldwide. It is characterized by excessive accumulation of extracellular matrix in the lung parenchyma. The cellular and molecular mechanisms involved in its pathogenesis are complex, and some are still unknown. Several studies indicate that oxidative stress, characterized by overproduction of 4-hydroxy-2-nonenal (4-HNE), is an important player in pulmonary fibrosis. 4-HNE is a highly reactive compound derived from polyunsaturated fatty acids that can react with proteins, phospholipids, and nucleic acids. Thus, many of the altered cellular mechanisms that contribute to this disease can be explained by the participation of 4-HNE. Here, we summarize the current knowledge on the molecular states and signal transduction pathways that contribute to the pathogenesis of pulmonary fibrosis. Furthermore, we describe the participation of 4-HNE in various mechanisms involved in pulmonary fibrosis development, with a focus on the cell populations involved in the initiation, development, and maintenance of the fibrotic process, mainly alveolar cells, endothelial cells, macrophages, and inflammatory cells. Due to its characteristic activity as a second messenger, 4-HNE, in addition to being a consequence of oxidative stress, can support maintenance of the inflammatory and fibrotic process by spreading the effects of reactive oxygen species (ROS). Thus, regulation of 4-HNE levels could be a viable strategy to reduce its effects on the mechanisms involved in pulmonary fibrosis development.
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Affiliation(s)
- Edilburga Reyes-Jiménez
- Laboratorio de Fibrosis y Cáncer, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
| | - Alma Aurora Ramírez-Hernández
- Laboratorio de Fibrosis y Cáncer, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
| | - Jovito Cesar Santos-Álvarez
- Laboratorio de Fibrosis y Cáncer, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
| | - Juan Manuel Velázquez-Enríquez
- Laboratorio de Fibrosis y Cáncer, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
| | | | - Rafael Baltiérrez-Hoyos
- CONACYT-Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
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11
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Leslie MN, Chou J, Young PM, Traini D, Bradbury P, Ong HX. How Do Mechanics Guide Fibroblast Activity? Complex Disruptions during Emphysema Shape Cellular Responses and Limit Research. Bioengineering (Basel) 2021; 8:110. [PMID: 34436113 PMCID: PMC8389228 DOI: 10.3390/bioengineering8080110] [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: 06/29/2021] [Revised: 07/28/2021] [Accepted: 08/02/2021] [Indexed: 11/28/2022] Open
Abstract
The emphysema death toll has steadily risen over recent decades, causing the disease to become the third most common cause of death worldwide in 2019. Emphysema is currently incurable and could be due to a genetic condition (Alpha-1 antitrypsin deficiency) or exposure to pollutants/irritants, such as cigarette smoke or poorly ventilated cooking fires. Despite the growing burden of emphysema, the mechanisms behind emphysematous pathogenesis and progression are not fully understood by the scientific literature. A key aspect of emphysematous progression is the destruction of the lung parenchyma extracellular matrix (ECM), causing a drastic shift in the mechanical properties of the lung (known as mechanobiology). The mechanical properties of the lung such as the stiffness of the parenchyma (measured as the elastic modulus) and the stretch forces required for inhalation and exhalation are both reduced in emphysema. Fibroblasts function to maintain the structural and mechanical integrity of the lung parenchyma, yet, in the context of emphysema, these fibroblasts appear incapable of repairing the ECM, allowing emphysema to progress. This relationship between the disturbances in the mechanical cues experienced by an emphysematous lung and fibroblast behaviour is constantly overlooked and consequently understudied, thus warranting further research. Interestingly, the failure of current research models to integrate the altered mechanical environment of an emphysematous lung may be limiting our understanding of emphysematous pathogenesis and progression, potentially disrupting the development of novel treatments. This review will focus on the significance of emphysematous lung mechanobiology to fibroblast activity and current research limitations by examining: (1) the impact of mechanical cues on fibroblast activity and the cell cycle, (2) the potential role of mechanical cues in the diminished activity of emphysematous fibroblasts and, finally, (3) the limitations of current emphysematous lung research models and treatments as a result of the overlooked emphysematous mechanical environment.
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Affiliation(s)
- Mathew N. Leslie
- Respiratory Technology, The Woolcock Institute of Medical Research, Glebe, Sydney, NSW 2037, Australia; (M.N.L.); (P.M.Y.); (D.T.)
- Department of Biomedical Sciences, Faculty of Medicine, Healthy and Human Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Joshua Chou
- Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, Sydney, NSW 2007, Australia;
| | - Paul M. Young
- Respiratory Technology, The Woolcock Institute of Medical Research, Glebe, Sydney, NSW 2037, Australia; (M.N.L.); (P.M.Y.); (D.T.)
- Department of Marketing, Macquarie Business School, Macquarie University, Sydney, NSW 2109, Australia
| | - Daniela Traini
- Respiratory Technology, The Woolcock Institute of Medical Research, Glebe, Sydney, NSW 2037, Australia; (M.N.L.); (P.M.Y.); (D.T.)
- Department of Biomedical Sciences, Faculty of Medicine, Healthy and Human Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Peta Bradbury
- Respiratory Technology, The Woolcock Institute of Medical Research, Glebe, Sydney, NSW 2037, Australia; (M.N.L.); (P.M.Y.); (D.T.)
- Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, Sydney, NSW 2007, Australia;
- Mechanics and Genetics of Embryonic and Tumoral Development Group, UMR168—Laboratoire Physico-Chimie Curie, Institut Curie, 75248 Paris, France
| | - Hui Xin Ong
- Respiratory Technology, The Woolcock Institute of Medical Research, Glebe, Sydney, NSW 2037, Australia; (M.N.L.); (P.M.Y.); (D.T.)
- Department of Biomedical Sciences, Faculty of Medicine, Healthy and Human Sciences, Macquarie University, Sydney, NSW 2109, Australia
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12
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Wicher SA, Roos BB, Teske JJ, Fang YH, Pabelick C, Prakash YS. Aging increases senescence, calcium signaling, and extracellular matrix deposition in human airway smooth muscle. PLoS One 2021; 16:e0254710. [PMID: 34324543 PMCID: PMC8321097 DOI: 10.1371/journal.pone.0254710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/01/2021] [Indexed: 12/23/2022] Open
Abstract
Lung function declines as people age and their lungs become stiffer. With an increasing elderly population, understanding mechanisms that contribute to these structural and functional changes in the aging lung is important. Part of the aging process is characterized by thicker, more fibrotic airways, and senile emphysema caused by changes in lung parenchyma. There is also senescence, which occurs throughout the body with aging. Here, using human airway smooth muscle (ASM) cells from patients in different age groups, we explored senescence pathways and changes in intracellular calcium signaling and extracellular matrix (ECM) deposition to elucidate potential mechanisms by which aging leads to thicker and stiffer lungs. Senescent markers p21, γH2AX, and β-gal, and some senescence-associated secretory proteins (SASP) increased with aging, as shown by staining and biochemical analyses. Agonist-induced intracellular Ca2+ responses, measured using fura-2 loaded cells and fluorescence imaging, increased with age. However, biochemical analysis showed that expression of the following markers decreased with age: M3 muscarinic receptor, TRPC3, Orai1, STIM1, SERCA2, MMP2 and MMP9. In contrast, collagen III, and fibronectin deposition increased with age. These data show that senescence increases in the aging airways that is associated with a stiffer but surprisingly greater intracellular calcium signaling as a marker for contractility. ASM senescence may enhance fibrosis in a feed forward loop promoting remodeling and altered calcium storage and buffering.
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Affiliation(s)
- Sarah A. Wicher
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
| | - Benjamin B. Roos
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
| | - Jacob J. Teske
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
| | - Yun Hua Fang
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States of America
| | - Christina Pabelick
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States of America
| | - Y. S. Prakash
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, United States of America
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States of America
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13
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Lin R, Zhang Z, Cao S, Yang W, Zuo Y, Yang X, Zhang J, Xu J, Li J, Wang X. The development of HEC-866 and its analogues for the treatment of idiopathic pulmonary fibrosis. RSC Med Chem 2021; 12:1222-1231. [PMID: 34355186 DOI: 10.1039/d1md00023c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/14/2021] [Indexed: 11/21/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic progressive lung disease with a typical survival time between three to five years. Two drugs, pirfenidone and nintedanib have been approved for the treatment of IPF, but they have limited efficacy. Thus, the development of new drugs to treat IPF is an urgent medical need. In this paper we report the discovery of a series of orally active pyrimidin-4(3H)-one analogs which exhibit potent activity in in vitro assays. Among them, HEC-866 showed promising efficacy in rat IPF models. Since HEC-866 also had good oral bioavailability, a long half-life and favorable long-term safety profiles, it was selected for further clinical evaluation.
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Affiliation(s)
- Runfeng Lin
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
| | - Zheng Zhang
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
| | - Shengtian Cao
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
| | - Wen Yang
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
| | - Yinglin Zuo
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
| | - Xinye Yang
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
| | - Jiancun Zhang
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
| | - Juan Xu
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
| | - Jing Li
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
| | - Xiaojun Wang
- Department of Cardiovascular Diseases, HEC Pharma. Co. Ltd. Shangsha Fifth Industrial Park Dongguan 523871 Guangdong China
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Anti-epileptic drug topiramate upregulates TGFβ1 and SOX9 expression in primary embryonic palatal mesenchyme cells: Implications for teratogenicity. PLoS One 2021; 16:e0246989. [PMID: 33577554 PMCID: PMC7880431 DOI: 10.1371/journal.pone.0246989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 01/28/2021] [Indexed: 12/27/2022] Open
Abstract
Topiramate is an anti-epileptic drug that is commonly prescribed not just to prevent seizures but also migraine headaches, with over 8 million prescriptions dispensed annually. Topiramate use during pregnancy has been linked to significantly increased risk of babies born with orofacial clefts (OFCs). However, the exact molecular mechanism of topiramate teratogenicity is unknown. In this study, we first used an unbiased antibody array analysis to test the effect of topiramate on human embryonic palatal mesenchyme (HEPM) cells. This analysis identified 40 differentially expressed proteins, showing strong connectivity to known genes associated with orofacial clefts. However, among known OFC genes, only TGFβ1 was significantly upregulated in the antibody array analysis. Next, we validated that topiramate could increase expression of TGFβ1 and of downstream target phospho-SMAD2 in primary mouse embryonic palatal mesenchyme (MEPM) cells. Furthermore, we showed that topiramate treatment of primary MEPM cells increased expression of SOX9. SOX9 overexpression in chondrocytes is known to cause cleft palate in mouse. We propose that topiramate mediates upregulation of TGFβ1 signaling through activation of γ-aminobutyric acid (GABA) receptors in the palate. TGFβ1 and SOX9 play critical roles in orofacial morphogenesis, and their abnormal overexpression provides a plausible etiologic molecular mechanism for the teratogenic effects of topiramate.
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15
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Puerta Cavanzo N, Bigaeva E, Boersema M, Olinga P, Bank RA. Macromolecular Crowding as a Tool to Screen Anti-fibrotic Drugs: The Scar-in-a-Jar System Revisited. Front Med (Lausanne) 2021; 7:615774. [PMID: 33521022 PMCID: PMC7841046 DOI: 10.3389/fmed.2020.615774] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
An unsolved therapeutic problem in fibrosis is the overproduction of collagen. In order to screen the effect of anti-fibrotic drugs on collagen deposition, the Scar-in-a-Jar approach has been introduced about a decade ago. With macromolecular crowding a rapid deposition of collagen is seen, resulting in a substantial decrease in culture time, but the system has never been tested in an adequate way. We therefore have compared six different macromolecular crowders [Ficoll PM 70 (Fc70), Ficoll PM 400 (Fc400), a mixture of Ficoll 70 and 400 (Fc70/400), polyvinylpyrrolidone 40 (PVP40), polyvinylpyrrolidone 360 (PVP360), neutral dextran 670 (ND670), dextran sulfate 500 (DxS500), and carrageenan (CR)] under profibrotic conditions (addition of TGFβ1) with primary human adult dermal fibroblasts in the presence of 0.5 and 10% FBS. We found that (1) collagen deposition and myofibroblast formation was superior with 0.5% FBS, (2) DxS500 and CR results in an aberrant collagen deposition pattern, (3) ND670 does not increase collagen deposition, and (4) CR, DxS500, and Fc40/700 affected important phenotypical properties of the cells when cultured under pro-fibrotic conditions, whereas PVP40 and PVP360 did less or not. Because of viscosity problems with PVP360, we conclude that PVP40 is the most optimal crowder for the screening of anti-fibrotic drugs. Finally, the effect of various concentrations of Imatinib, Galunisertib, Omipalisib or Nintedanib on collagen deposition and myofibroblast formation was tested with PVP40 as the crowder.
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Affiliation(s)
- Nataly Puerta Cavanzo
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, Netherlands.,MATRIX Research Group, Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Emilia Bigaeva
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, Netherlands
| | - Miriam Boersema
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, Netherlands
| | - Peter Olinga
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, Netherlands
| | - Ruud A Bank
- MATRIX Research Group, Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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16
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Molecular structure and supramolecular assembly of a TGF-β1 mimetic oligopeptide. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Hachim D, LoPresti ST, Rege RD, Umeda Y, Iftikhar A, Nolfi AL, Skillen CD, Brown BN. Distinct macrophage populations and phenotypes associated with IL-4 mediated immunomodulation at the host implant interface. Biomater Sci 2020; 8:5751-5762. [PMID: 32945303 PMCID: PMC7641101 DOI: 10.1039/d0bm00568a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The host macrophage response to implants has shown to be affected by tissue location and physio-pathological conditions of the patient. Success in immunomodulatory strategies is thus predicated on the proper understanding of the macrophage populations participating on each one of these contexts. The present study uses an in vivo implantation model to analyze how immunomodulation via an IL-4 eluting implant affects distinct macrophage populations at the tissue-implant interface and how this may affect downstream regenerative processes. Populations identified as F4/80+, CD68+ and CD11b+ macrophages at the peri-implant space showed distinct susceptibility to polarize towards an M2-like phenotype under the effects of delivered IL-4. Also, the presence of the coating resulted in a significant reduction in F4/80+ macrophages, while other populations remained unchanged. These results suggests that the F4/80+ macrophage population may be predominant in the early stages of the host response at the surface of these implants, in contrast to CD11b+ macrophage populations which were either fewer in number or located more distant from the implant surface. Gene expression assays showed increased proteolytic activity and diminished matrix deposition as possible mechanisms explaining the decreased fibrotic capsule deposition and improved peri-implant tissue quality shown in previous studies using IL-4 eluting coatings. The pattern of M2-like gene expression promoted by IL-4 was correlated with glycosaminoglycan production within the site of implantation at early stages of the host response, suggesting a significant role in this response. These findings demonstrate that immunomodulatory strategies can be utilized to design and implement targeted delivery for improving biomaterial performance.
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Affiliation(s)
- Daniel Hachim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, USA.
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18
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Aguado T, García M, García A, Ferrer-Mayorga G, Martínez-Santamaría L, del Río M, Botella LM, Sánchez-Puelles JM. Raloxifene and n-Acetylcysteine Ameliorate TGF-Signalling in Fibroblasts from Patients with Recessive Dominant Epidermolysis Bullosa. Cells 2020; 9:E2108. [PMID: 32947957 PMCID: PMC7565802 DOI: 10.3390/cells9092108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 02/07/2023] Open
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a severe skin disease caused by mutation of the COL7A1 gene. RDEB is associated with high levels of TGF-β1, which is likely to be involved in the fibrosis that develops in this disease. Endoglin (CD105) is a type III coreceptor for TGF-β1 and its overexpression in fibroblasts deregulates physiological Smad/Alk1/Alk5 signalling, repressing the synthesis of TGF-β1 and extracellular matrix (ECM) proteins. Raloxifene is a specific estrogen receptor modulator designated as an orphan drug for hereditary hemorrhagic telangiectasia, a rare vascular disease. Raloxifene stimulates endoglin synthesis, which could attenuate fibrosis. By contrast, the antioxidant N-acetylcysteine may have therapeutic value to rectify inflammation, fibrosis and endothelial dysfunction. Thus, we present here a repurposing strategy based on the molecular and functional screening of fibroblasts from RDEB patients with these drugs, leading us to propose the repositioning of these two well-known drugs currently in clinical use, raloxifene and N-acetylcysteine, to counteract fibrosis and inflammation in RDEB. Both compounds modulate the profibrotic events that may ultimately be responsible for the clinical manifestations in RDEB, suggesting that these findings may also be relevant for other diseases in which fibrosis is an important pathophysiological event.
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Affiliation(s)
- Tania Aguado
- Department of Molecular Biomedicine, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, U-707 CIBERER, 28040 Madrid, Spain;
| | - Marta García
- Departament of Biomedical Engineering, Universidad Carlos III, 28911 Madrid, Spain; (M.G.); (A.G.); (L.M.-S.); (M.d.R.)
- Spanish Network of Research Groups on Rare Diseases (CIBERER) U714, 28911 Madrid, Spain
- Foundation of the Institute for Health Research, Jiménez Díaz Foundation, 28040 Madrid, Spain
| | - Adela García
- Departament of Biomedical Engineering, Universidad Carlos III, 28911 Madrid, Spain; (M.G.); (A.G.); (L.M.-S.); (M.d.R.)
- Spanish Network of Research Groups on Rare Diseases (CIBERER) U714, 28911 Madrid, Spain
- Foundation of the Institute for Health Research, Jiménez Díaz Foundation, 28040 Madrid, Spain
| | - Gemma Ferrer-Mayorga
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, 28029 Madrid, Spain;
| | - Lucía Martínez-Santamaría
- Departament of Biomedical Engineering, Universidad Carlos III, 28911 Madrid, Spain; (M.G.); (A.G.); (L.M.-S.); (M.d.R.)
- Spanish Network of Research Groups on Rare Diseases (CIBERER) U714, 28911 Madrid, Spain
- Foundation of the Institute for Health Research, Jiménez Díaz Foundation, 28040 Madrid, Spain
| | - Marcela del Río
- Departament of Biomedical Engineering, Universidad Carlos III, 28911 Madrid, Spain; (M.G.); (A.G.); (L.M.-S.); (M.d.R.)
- Spanish Network of Research Groups on Rare Diseases (CIBERER) U714, 28911 Madrid, Spain
- Foundation of the Institute for Health Research, Jiménez Díaz Foundation, 28040 Madrid, Spain
| | - Luisa-María Botella
- Department of Molecular Biomedicine, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, U-707 CIBERER, 28040 Madrid, Spain;
| | - José-María Sánchez-Puelles
- Department of Molecular Biomedicine, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, U-707 CIBERER, 28040 Madrid, Spain;
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Xing H, Lee H, Luo L, Kyriakides TR. Extracellular matrix-derived biomaterials in engineering cell function. Biotechnol Adv 2020; 42:107421. [PMID: 31381963 PMCID: PMC6995418 DOI: 10.1016/j.biotechadv.2019.107421] [Citation(s) in RCA: 147] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 07/12/2019] [Accepted: 07/31/2019] [Indexed: 12/11/2022]
Abstract
Extracellular matrix (ECM) derived components are emerging sources for the engineering of biomaterials that are capable of inducing desirable cell-specific responses. This review explores the use of biomaterials derived from naturally occurring ECM proteins and their derivatives in approaches that aim to regulate cell function. Biomaterials addressed are grouped into six categories: purified single ECM proteins, combinations of purified ECM proteins, cell-derived ECM, tissue-derived ECM, diseased and modified ECM, and ECM-polymer coupled biomaterials. Purified ECM proteins serve as a material coating for enhanced cell adhesion and biocompatibility. Cell-derived and tissue-derived ECM, generated by cell isolation and decellularization technologies, can capture the native state of the ECM environment and guide cell migration and alignment patterns as well as stem cell differentiation. We focus primarily on recent advances in the fields of soft tissue, cardiac, and dermal repair, and explore the utilization of ECM proteins as biomaterials to engineer cell responses.
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Affiliation(s)
- Hao Xing
- Department of Biomedical Engineering, Yale University, United States of America
| | - Hudson Lee
- Department of Molecular Biophysics and Biochemistry, Yale University, United States of America
| | - Lijing Luo
- Department of Pathology, Yale University, United States of America
| | - Themis R Kyriakides
- Department of Biomedical Engineering, Yale University, United States of America; Department of Pathology, Yale University, United States of America.
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20
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Shendi D, Marzi J, Linthicum W, Rickards A, Dolivo D, Keller S, Kauss M, Wen Q, McDevitt T, Dominko T, Schenke-Layland K, Rolle M. Hyaluronic acid as a macromolecular crowding agent for production of cell-derived matrices. Acta Biomater 2019; 100:292-305. [PMID: 31568877 DOI: 10.1016/j.actbio.2019.09.042] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/19/2019] [Accepted: 09/26/2019] [Indexed: 12/18/2022]
Abstract
Cell-derived matrices (CDMs) provide an exogenous source of human extracellular matrix (ECM), with applications as cell delivery vehicles, substrate coatings for cell attachment and differentiation, and as biomaterial scaffolds. However, commercial application of CDMs has been hindered due to the prolonged culture time required for sufficient ECM accumulation. One approach to increasing matrix deposition in vitro is macromolecular crowding (MMC), which is a biophysical phenomenon that limits the diffusion of ECM precursor proteins, resulting in increased ECM accumulation at the cell layer. Hyaluronic acid (HA), a natural MMC highly expressed in vivo during fetal development, has been shown to play a role in ECM production, but has not been investigated as a macromolecule for increasing cell-mediated ECM deposition in vitro. In the current study, we hypothesized that HA can act as a MMC, and increase cell-mediated ECM production. Human dermal fibroblasts were cultured for 3, 7, or 14 days with 0%, 0.05%, or 0.5% high molecular weight HA. Ficoll 70/400 was used as a positive control. SDS-PAGE, Sircol, and hydroxyproline assays indicated that 0.05% HA-treated cultures had significantly higher mean collagen deposition at 14 days, whereas Ficoll 70/400-treated cultures had significantly lower collagen production compared to the HA and untreated controls. However, fluorescent immunostaining of ECM proteins and quantification of mean gray values did not indicate statistically significant differences in ECM production in HA or Ficoll 70/400-treated cultures compared to untreated controls. Raman imaging (a marker-free spectral imaging method) indicated that HA increased ECM deposition in human dermal fibroblasts. These results are consistent with decreases in CDM stiffness observed in Ficoll 70/400-treated cultures by atomic force microscopy. Overall, these results indicate that there are macromolecule- and cell type- dependent effects on matrix assembly, turnover, and stiffness in cell-derived matrices. STATEMENT OF SIGNIFICANCE: Cell-derived matrices (CDMs) are versatile biomaterials with many regenerative medicine applications, including as cell and drug delivery vehicles and scaffolds for wound healing and tissue regeneration. While CDMs have several advantages, their commercialization has been limited due to the prolonged culture time required to achieve CDM synthesis in vitro. In this study, we explored the use of hyaluronic acid (HA) as a macromolecular crowder in human fibroblast cell cultures to support production of CDM biomaterials. Successful application of macromolecular crowding will allow development of human cell-derived, xeno-free biomaterials that re-capitulate the native human tissue microenvironment.
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21
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Eduardo M, Ivette BR, Gabriela DP, Veronica MA, Victor R. Evaluation of Renin and Soluble (Pro)renin Receptor in Patients with IPF. A Comparison with Hypersensitivity Pneumonitis. Lung 2019; 197:715-720. [PMID: 31616976 DOI: 10.1007/s00408-019-00278-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 09/30/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Idiopathic pulmonary fibrosis (IPF) is a lethal disease with an unclear pathogenic mechanism. Components of the renin-angiotensin system (RAS) have a role in the pathogenesis of IPF, specifically, the aspartyl protease renin acts as a profibrotic factor in the lung. However, the concentration of the RAS components renin and soluble (pro)renin receptor (sPRR) have not been previously evaluated neither in serum nor in bronchoalveolar lavage fluid (BAL) of patients with IPF or chronic Hypersensitivity pneumonitis (cHP), a disease which may be confused with IPF. METHODS The serum levels of renin [IPF patients (n = 70), cHP patients (n = 83), and controls (n = 26)] and sPRR [IPF (n = 28), cHP (37), and controls (n = 20)] were measured by ELISA. Renin was also quantified in BALs of IPF patients and controls by Western blot. RESULTS We found that the levels of renin were higher in serum samples from IPF patients when compared with cHP patients and controls. Furthermore, BALs from IPF patients had more renin than BALs from controls. Unlike renin, the serum levels of sPRR were lower in IPF and cHP patients than in control individuals. CONCLUSIONS The high levels of renin in sera and BALs of IPF patients suggest that renin might play a major role in the pathogenesis of IPF. Results from BAL confirm that renin is produced locally in the lung. Serum levels of renin could be used to differentiate IPF from cHP.
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Affiliation(s)
- Montes Eduardo
- Clínica de Asma, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico
| | - Buendía-Roldan Ivette
- Laboratorio de Biología Molecular, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico
| | - Díaz-Piña Gabriela
- Laboratorio de Biología Molecular, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico
| | - Moreno-Avila Veronica
- Laboratorio de Morfología, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico
| | - Ruiz Victor
- Laboratorio de Biología Molecular, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico.
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22
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Negreros M, Hagood JS, Espinoza CR, Balderas-Martínez YI, Selman M, Pardo A. Transforming growth factor beta 1 induces methylation changes in lung fibroblasts. PLoS One 2019; 14:e0223512. [PMID: 31603936 PMCID: PMC6788707 DOI: 10.1371/journal.pone.0223512] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 09/22/2019] [Indexed: 12/20/2022] Open
Abstract
Idiopathic pulmonary fibrosis is a complex disease of unknown etiology. Environmental factors can affect disease susceptibility via epigenetic effects. Few studies explore global DNA methylation in lung fibroblasts, but none have focused on transforming growth factor beta-1 (TGF-β1) as a potential modifier of the DNA methylome. Here we analyzed changes in methylation and gene transcription in normal and IPF fibroblasts following TGF-β1 treatment. We analyzed the effects of TGF-β1 on primary fibroblasts derived from normal or IPF lungs treated for 24 hours and 5 days using the Illumina 450k Human Methylation array and the Prime View Human Gene Expression Array. TGF-β1 induced an increased number of gene expression changes after short term treatment in normal fibroblasts, whereas greater methylation changes were observed following long term stimulation mainly in IPF fibroblasts. DNA methyltransferase 3 alpha (DMNT3a) and tet methylcytosine dioxygenase 3 (TET3) were upregulated after 5-days TGF-β1 treatment in both cell types, whereas DNMT3a was upregulated after 24h only in IPF fibroblasts. Our findings demonstrate that TGF-β1 induced the upregulation of DNMT3a and TET3 expression and profound changes in the DNA methylation pattern of fibroblasts, mainly in those derived from IPF lungs.
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Affiliation(s)
- Miguel Negreros
- Facultad de Ciencias Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - James S. Hagood
- Department of Pediatrics, Division of Respiratory Medicine, University of California-San Diego, La Jolla, California, United States of America
- Department of Pediatrics, Pulmonology Division, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Celia R. Espinoza
- Department of Pediatrics, Division of Respiratory Medicine, University of California-San Diego, La Jolla, California, United States of America
| | - Yalbi I. Balderas-Martínez
- Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
- Cátedra CONACyT-INER, Mexico City, Mexico
| | - Moisés Selman
- Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Annie Pardo
- Facultad de Ciencias Universidad Nacional Autónoma de México, Mexico City, Mexico
- * E-mail:
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Treprostinil inhibits proliferation and extracellular matrix deposition by fibroblasts through cAMP activation. Sci Rep 2018; 8:1087. [PMID: 29348469 PMCID: PMC5773699 DOI: 10.1038/s41598-018-19294-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 10/09/2017] [Indexed: 12/25/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is characterized by peripheral lung fibrosis and increased interstitial extracellular matrix (ECM) deposition. In IPF, tumor growth factor (TGF)-β1 which is the major stimulus of ECM deposition, and platelet derived growth factor (PDGF)-BB is a potent stimulus of fibrosis. Thus, the effect of Treprostinil on TGF-ß1 and PDGF-induced fibroblast proliferation and ECM deposition was investigated. Human peripheral lung fibroblasts of seven IPF patients and five lung donors were stimulated by PDGF, or TGF-β1, or the combination. Cells were pre-incubated (30 min) with either Treprostinil, forskolin, di-deoxyadenosine (DDA), or vehicle. Treprostinil time dependently activated cAMP thereby preventing PDGF-BB induced proliferation and TGF-β1 secretion. Cell counts indicated proliferation; α-smooth muscle actin (α-SMA) indicted differentiation, and collagen type-1 or fibronectin deposition remodeling. Myo-fibroblast indicating α-SMA expression was significantly reduced and its formation was altered by Treprostinil. Collagen type-I and fibronectin deposition were also reduced by Treprostinil. The effect of Treprostinil on collagen type-I deposition was cAMP sensitive as it was counteracted by DDA, while the effect on fibronectin was not cAMP mediated. Treprostinil antagonized the pro-fibrotic effects of both PDGF-BB and TGF-β1 in primary human lung fibroblasts. The data presented propose a therapeutic relevant anti-fibrotic effect of Treprostinil in IPF.
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Vitenberga Z, Pilmane M. Age-related lung tissue remodeling due to the local distribution of MMP-2, TIMP-2, TGF-β and Hsp70. Biotech Histochem 2018; 93:239-248. [PMID: 29325453 DOI: 10.1080/10520295.2017.1421322] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Lung tissue remodeling requires complex interactions of matrix metalloproteinases (MMPs), tissue inhibitors of metalloproteinases (TIMPs), transforming growth factor (TGF) family and heat shock protein 70 (Hsp70). We evaluated the appearance and distribution of MMP-2, TIMP-2, TGF-β1 and Hsp70 in lung tissue using immunohistochemistry. Stained structures were graded semiquantitatively. Overall, more MMP-2, TIMP-2, TGF-β1 and Hsp70 were observed in bronchial cartilage, bronchial and alveola repithelium, and among alveolar macrophages. We evaluated mostly alveolar macrophages, bronchial epithelial cells and mucosal fibroblasts stained for TGF-β1, MMP-2 and TIMP-2. We also assessed strong or moderate correlations between numbers of cells containing TGF-β1, MMP-2, TIMP-2 in patients ≥ 60 years old. The presence of less TGF-β1 and more MMP-2, TIMP-2 and Hsp70 containing cells in all tissue groups indicated that local regulation was more dependent on MMP-2, TIMP-2 and Hsp70 distribution. Fewer TIMP-2, Hsp70 and TGF-β1 immunoreactive cells in younger individuals and increased expression of Hsp70 in elderly individuals demonstrated the influence of aging in lung remodeling. Findings of MMP-2, TIMP-2 and TGF-β1 immunoreactive cells in elderly individuals indicate lung remodeling due to aging.
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Affiliation(s)
- Z Vitenberga
- a Riga Stradins University , Institute of Anatomy and Anthropology, Department of Morphology , Riga , Latvia
| | - M Pilmane
- a Riga Stradins University , Institute of Anatomy and Anthropology, Department of Morphology , Riga , Latvia
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Giménez A, Duch P, Puig M, Gabasa M, Xaubet A, Alcaraz J. Dysregulated Collagen Homeostasis by Matrix Stiffening and TGF-β1 in Fibroblasts from Idiopathic Pulmonary Fibrosis Patients: Role of FAK/Akt. Int J Mol Sci 2017; 18:ijms18112431. [PMID: 29144435 PMCID: PMC5713399 DOI: 10.3390/ijms18112431] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/03/2017] [Accepted: 11/07/2017] [Indexed: 11/16/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is an aggressive disease in which normal lung parenchyma is replaced by a stiff dysfunctional scar rich in activated fibroblasts and collagen-I. We examined how the mechanochemical pro-fibrotic microenvironment provided by matrix stiffening and TGF-β1 cooperates in the transcriptional control of collagen homeostasis in normal and fibrotic conditions. For this purpose we cultured fibroblasts from IPF patients or control donors on hydrogels with tunable elasticity, including 3D collagen-I gels and 2D polyacrylamide (PAA) gels. We found that TGF-β1 consistently increased COL1A1 while decreasing MMP1 mRNA levels in hydrogels exhibiting pre-fibrotic or fibrotic-like rigidities concomitantly with an enhanced activation of the FAK/Akt pathway, whereas FAK depletion was sufficient to abrogate these effects. We also demonstrate a synergy between matrix stiffening and TGF-β1 that was positive for COL1A1 and negative for MMP1. Remarkably, the COL1A1 expression upregulation elicited by TGF-β1 alone or synergistically with matrix stiffening were higher in IPF-fibroblasts compared to control fibroblasts in association with larger FAK and Akt activities in the former cells. These findings provide new insights on how matrix stiffening and TGF-β1 cooperate to elicit excessive collagen-I deposition in IPF, and support a major role of the FAK/Akt pathway in this cooperation.
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Affiliation(s)
- Alícia Giménez
- Unit of Biophysics and Bioengineering, Department of Biomedicine, School of Medicine, Universitat de Barcelona, 08036 Barcelona, Spain.
| | - Paula Duch
- Unit of Biophysics and Bioengineering, Department of Biomedicine, School of Medicine, Universitat de Barcelona, 08036 Barcelona, Spain.
| | - Marta Puig
- Unit of Biophysics and Bioengineering, Department of Biomedicine, School of Medicine, Universitat de Barcelona, 08036 Barcelona, Spain.
| | - Marta Gabasa
- Unit of Biophysics and Bioengineering, Department of Biomedicine, School of Medicine, Universitat de Barcelona, 08036 Barcelona, Spain.
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain.
| | - Antoni Xaubet
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain.
- Pneumology Service, Hospital Clínic, 08036 Barcelona, Spain.
- CIBER de Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain.
| | - Jordi Alcaraz
- Unit of Biophysics and Bioengineering, Department of Biomedicine, School of Medicine, Universitat de Barcelona, 08036 Barcelona, Spain.
- CIBER de Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain.
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Ong J, Timens W, Rajendran V, Algra A, Spira A, Lenburg ME, Campbell JD, van den Berge M, Postma DS, van den Berg A, Kluiver J, Brandsma CA. Identification of transforming growth factor-beta-regulated microRNAs and the microRNA-targetomes in primary lung fibroblasts. PLoS One 2017; 12:e0183815. [PMID: 28910321 PMCID: PMC5599028 DOI: 10.1371/journal.pone.0183815] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 08/10/2017] [Indexed: 12/05/2022] Open
Abstract
Background Lung fibroblasts are involved in extracellular matrix homeostasis, which is mainly regulated by transforming growth factor-beta (TGF-β), and are therefore crucial in lung tissue repair and remodeling. Abnormal repair and remodeling has been observed in lung diseases like COPD. As miRNA levels can be influenced by TGF-β, we hypothesized that TGF-β influences miRNA expression in lung fibroblasts, thereby affecting their function. Materials and methods We investigated TGF-β1-induced miRNA expression changes in 9 control primary parenchymal lung fibroblasts using miRNA arrays. TGF-β1-induced miRNA expression changes were validated and replicated in an independent set of lung fibroblasts composted of 10 controls and 15 COPD patients using qRT-PCR. Ago2-immunoprecipitation followed by mRNA expression profiling was used to identify the miRNA-targetomes of unstimulated and TGF-β1-stimulated primary lung fibroblasts (n = 2). The genes affected by TGF-β1-modulated miRNAs were identified by comparing the miRNA targetomes of unstimulated and TGF-β1-stimulated fibroblasts. Results Twenty-nine miRNAs were significantly differentially expressed after TGF-β1 stimulation (FDR<0.05). The TGF-β1-induced miR-455-3p and miR-21-3p expression changes were validated and replicated, with in addition, lower miR-455-3p levels in COPD (p<0.05). We identified 964 and 945 genes in the miRNA-targetomes of unstimulated and TGF-β1-stimulated lung fibroblasts, respectively. The TGF-β and Wnt pathways were significantly enriched among the Ago2-IP enriched and predicted targets of miR-455-3p and miR-21-3p. The miR-455-3p target genes HN1, NGF, STRADB, DLD and ANO3 and the miR-21-3p target genes HHEX, CHORDC1 and ZBTB49 were consistently more enriched after TGF-β1 stimulation. Conclusion Two miRNAs, miR-455-3p and miR-21-3p, were induced by TGF-β1 in lung fibroblasts. The significant Ago2-IP enrichment of targets of these miRNAs related to the TGF-β and/or Wnt pathways (NGF, DLD, HHEX) in TGF-β1-stimulated fibroblasts suggest a role for these miRNAs in lung diseases by affecting lung fibroblast function.
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Affiliation(s)
- Jennie Ong
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
| | - Wim Timens
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
| | - Vijay Rajendran
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
| | - Arjan Algra
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands
| | - Avrum Spira
- Boston University, School of Medicine, Department of Medicine, Section of Computational Biomedicine, Boston, Massachusetts, United States of America
| | - Marc E. Lenburg
- Boston University, School of Medicine, Department of Medicine, Section of Computational Biomedicine, Boston, Massachusetts, United States of America
| | - Joshua D. Campbell
- Boston University, School of Medicine, Department of Medicine, Section of Computational Biomedicine, Boston, Massachusetts, United States of America
| | - Maarten van den Berge
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Department of Pulmonary Diseases, Groningen, The Netherlands
| | - Dirkje S. Postma
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Department of Pulmonary Diseases, Groningen, The Netherlands
| | - Anke van den Berg
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands
| | - Joost Kluiver
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands
| | - Corry-Anke Brandsma
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
- * E-mail:
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Jia Y, Turek JJ. Polyenoic Fatty Acid Ratios Alter Fibroblast Collagen Production Via PGE2 and PGE Receptor Subtype Response. Exp Biol Med (Maywood) 2016; 229:676-83. [PMID: 15229362 DOI: 10.1177/153537020422900712] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Previous experiments have shown that dietary n-6 and n-3 polyenoic fatty acids (PFA) have different effects on collagen production, a process that may be related to the formation of prostaglandins (PG). This study tested the hypothesis that fibroblast collagen production could be regulated by different n-6:n-3 PFA ratios and that the effects were mediated by PGE2 and altered signaling via the different PGE receptor subtypes. Compared to a bovine serum albumin control, eicosapentaenoic acid (EPA; 20:5 n-3) treated cells significantly (P < 0.05) increased both collagen production and collagen as a percentage of total cellular protein (C-PTP), but arachidonic acid (AA; 20:4 n-6) reduced collagen production and C-PTP. As the amount of AA decreased and that of EPA increased, collagen production and C-PTP increased, especially when ratio of n-6:n-3 PFA was less than 1:1. C-PTP was significantly correlated with the amount of PGE2 in the medium. AA- or EPA-treated cells produced similar C-PTP when incubated with 10−6 M indomethacin, a cyclooxygenase inhibitor. Addition of exogenous PGE2 to cell cultures treated with 10−6 M indomethacin for 48 hrs decreased C-PTP in both AA and EPA groups. Decreased C-PTP was observed in AA-treated cells exposed to EP1, EP2, and EP4 PGE receptor agonists and in EPA-treated cells exposed to EP2 and EP4 agonists. AA-treated cell responded to activators of cyclic adenosine monophosphate and protein kinase C by decreasing C-PTP, but EPA-treated cells were unresponsive. In conclusion, collagen production in 3T3-Swiss fibroblasts induced by different n-6:n-3 PFA ratios was correlated with PGE2 production and altered responsiveness and signaling via the different PGE receptor subtypes.
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Affiliation(s)
- Yi Jia
- Purdue University, Department of Basic Medical Sciences, 625 Harrison Street, West Lafayette, IN 47907-2026, USA
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28
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Froese AR, Shimbori C, Bellaye PS, Inman M, Obex S, Fatima S, Jenkins G, Gauldie J, Ask K, Kolb M. Stretch-induced Activation of Transforming Growth Factor-β1in Pulmonary Fibrosis. Am J Respir Crit Care Med 2016; 194:84-96. [DOI: 10.1164/rccm.201508-1638oc] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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The Flaxseed-Derived Lignan Phenolic Secoisolariciresinol Diglucoside (SDG) Protects Non-Malignant Lung Cells from Radiation Damage. Int J Mol Sci 2015; 17:ijms17010007. [PMID: 26703588 PMCID: PMC4730254 DOI: 10.3390/ijms17010007] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 12/08/2015] [Accepted: 12/14/2015] [Indexed: 01/08/2023] Open
Abstract
Plant phenolic compounds are common dietary antioxidants that possess antioxidant and anti-inflammatory properties. Flaxseed (FS) has been reported to be radioprotective in murine models of oxidative lung damage. Flaxseed’s protective properties are attributed to its main biphenolic lignan, secoisolariciresinol diglucoside (SDG). SDG is a free radical scavenger, shown in cell free systems to protect DNA from radiation-induced damage. The objective of this study was to investigate the in vitro radioprotective efficacy of SDG in murine lung cells. Protection against irradiation (IR)-induced DNA double and single strand breaks was assessed by γ-H2AX labeling and alkaline comet assay, respectively. The role of SDG in modulating the levels of cytoprotective enzymes was evaluated by qPCR and confirmed by Western blotting. Additionally, effects of SDG on clonogenic survival of irradiated cells were evaluated. SDG protected cells from IR-induced death and ameliorated DNA damage by reducing mean comet tail length and percentage of γ-H2AX positive cells. Importantly, SDG significantly increased gene and protein levels of antioxidant HO-1, GSTM1 and NQO1. Our results identify the potent radioprotective properties of the synthetic biphenolic SDG, preventing DNA damage and enhancing the antioxidant capacity of normal lung cells; thus, rendering SDG a potential radioprotector against radiation exposure.
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LeBert DC, Squirrell JM, Rindy J, Broadbridge E, Lui Y, Zakrzewska A, Eliceiri KW, Meijer AH, Huttenlocher A. Matrix metalloproteinase 9 modulates collagen matrices and wound repair. Development 2015; 142:2136-46. [PMID: 26015541 DOI: 10.1242/dev.121160] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 05/01/2015] [Indexed: 12/15/2022]
Abstract
Acute and chronic injuries are characterized by leukocyte infiltration into tissues. Although matrix metalloproteinase 9 (Mmp9) has been implicated in both conditions, its role in wound repair remains unclear. We previously reported a zebrafish chronic inflammation mutant caused by an insertion in the hepatocyte growth factor activator inhibitor gene 1 (hai1; also known as spint1) that is characterized by epithelial extrusions and neutrophil infiltration into the fin. Here, we performed a microarray analysis and found increased inflammatory gene expression in the mutant larvae, including a marked increase in mmp9 expression. Depletion of mmp9 partially rescued the chronic inflammation and epithelial phenotypes, in addition to restoring collagen fiber organization, as detected by second-harmonic generation imaging. Additionally, we found that acute wounding induces epithelial cell mmp9 expression and is associated with a thickening of collagen fibers. Interestingly, depletion of mmp9 impaired this collagen fiber reorganization. Moreover, mmp9 depletion impaired tissue regeneration after tail transection, implicating Mmp9 in acute wound repair. Thus, Mmp9 regulates both acute and chronic tissue damage and plays an essential role in collagen reorganization during wound repair.
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Affiliation(s)
- Danny C LeBert
- Cellular and Molecular Pathology Graduate Program, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Jayne M Squirrell
- Laboratory for Optical and Computational Instrumentation, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Julie Rindy
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Elizabeth Broadbridge
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Yuming Lui
- Laboratory for Optical and Computational Instrumentation, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Anna Zakrzewska
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Kevin W Eliceiri
- Laboratory for Optical and Computational Instrumentation, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Annemarie H Meijer
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Anna Huttenlocher
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI 53706, USA Department of Pediatrics, University of Wisconsin-Madison, Madison, WI 53706, USA
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Kim YM, Huh JS, Lim Y, Cho M. Soy Isoflavone Glycitin (4'-Hydroxy-6-Methoxyisoflavone-7-D-Glucoside) Promotes Human Dermal Fibroblast Cell Proliferation and Migration via TGF-β Signaling. Phytother Res 2015; 29:757-69. [PMID: 25758427 DOI: 10.1002/ptr.5313] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/22/2014] [Accepted: 01/28/2015] [Indexed: 12/21/2022]
Abstract
Glycitin is a soy isoflavone that exhibits antioxidant, antiallergic, and anti-osteoporosis activities. We investigated the effects of glycitin on dermal fibroblast proliferation and migration. Treatment of primary dermal fibroblasts with glycitin increased cell proliferation and migration. In addition, treatment with 20 μM glycitin for 24 h induced the synthesis of collagen type I and type III at both the mRNA and protein levels. Fibronectin was also increased by 20% after treatment. Matrix metalloproteinase-1 collagenase was decreased in the media after 24-h incubation with glycitin, and the synthesis of transforming growth factor-beta (TGF-β) mRNA increased approximately twofold in cells following glycitin treatment. Phosphorylation of Smad2 and Smad3 increased after 1 h of glycitin treatment, and phosphorylation continued for 24 h. Furthermore, the phosphorylated form of AKT was increased in glycitin-treated cells after 3 h and remained higher for 24 h. Thus, glycitin treatment produces anti-aging effects including increased total collagen in the culture media, decreased elastase, and decreased β-galactosidase. Together, these results indicate that glycitin stimulates TGF-β secretion, and the subsequent autocrine actions of TGF-β induce proliferation of fibroblasts, ultimately protecting skin cells from aging and wrinkling.
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Affiliation(s)
- Young Mee Kim
- Department of Medicine, School of Medicine, Jeju National University, Jeju, Korea, 690-756
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Hirota N, Ito T, Miyazaki S, Ebina M, Homma S. Gene expression profiling of lung myofibroblasts reveals the anti-fibrotic effects of cyclosporine. TOHOKU J EXP MED 2015; 233:283-93. [PMID: 25132585 DOI: 10.1620/tjem.233.283] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Cyclosporine, a calcineurin inhibitor, is a potent immunosuppressive agent that acts chiefly through the inactivation of T-lymphocytes. Several clinical studies have demonstrated the effectiveness of cyclosporine for treating fibrotic lung disease, but the underlying mechanism remains elusive. We hypothesized that cyclosporine exerts direct effects against fibrogenesis of lung myofibroblasts, and aimed to elucidate the mechanism of this anti-fibrotic effect through gene-expression profiling using DNA microarray analysis. We found that cyclosporine suppressed the expression of alpha-smooth muscle actin and collagen type I in myofibroblasts that had been differentiated from a fetal human lung fibroblast cell line by induction with transforming growth factor (TGF)-β. Furthermore, microarray analysis revealed that cyclosporine down-regulated 57 genes whose expression levels were increased by TGF-β, and up-regulated 73 genes, whose expression was decreased by TGF-β. Classifying these 57 down-regulated and 73 up-regulated genes with the Database for Annotation, Visualization and Integrated Discovery (DAVID) web tool, we have identified the involvement of several functional categories, including innate immunity, cytokine interaction, growth factor, and cancer pathway. Of the identified genes, we selected three fibrosis-related genes, insulin-like growth factor binding protein 2 (IGFBP2), inhibitor of DNA binding 1 (ID1) and peroxisome proliferator-activated receptor gamma (PPARG), and validated their expression patterns by quantitative reverse transcription-polymerase chain reaction. Cyclosporine treatment decreased the expression levels of IGFBP2 and ID1, but increased PPARG expression. These results suggest that cyclosporine is a potent anti-fibrotic agent acting on myofibroblasts. Therefore, cyclosporine shows potential as a novel remedy for fibrotic lung disease.
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Affiliation(s)
- Nao Hirota
- Department of Respiratory Medicine, Toho University Omori Medical Center
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Ciechomska M, O’Reilly S, Suwara M, Bogunia-Kubik K, van Laar JM. MiR-29a reduces TIMP-1 production by dermal fibroblasts via targeting TGF-β activated kinase 1 binding protein 1, implications for systemic sclerosis. PLoS One 2014; 9:e115596. [PMID: 25549087 PMCID: PMC4280195 DOI: 10.1371/journal.pone.0115596] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 11/28/2014] [Indexed: 11/25/2022] Open
Abstract
Background Systemic sclerosis (SSc) is an autoimmune connective tissue disease characterised by skin and internal organs fibrosis due to accumulation of extra cellular matrix (ECM) proteins. Tissue inhibitor of metalloproteinases 1 (TIMP-1) plays a key role in ECM deposition. Aim To investigate the role of miR-29a in regulation of TAB1-mediated TIMP-1 production in dermal fibroblasts in systemic sclerosis. Methods Healthy control (HC) and SSc fibroblasts were cultured from skin biopsies. The expression of TIMP-1, MMP-1 and TGF-β activated kinase 1 binding protein 1 (TAB1) was measured following miR-29a transfection using ELISA, qRT-PCR, and Western Blotting. The functional effect of miR-29a on dermal fibroblasts was assessed in collagen gel assay. In addition, HeLa cells were transfected with 3′UTR of TAB1 plasmid cloned downstream of firefly luciferase gene to assess TAB1 activity. HC fibroblasts and HeLa cells were also transfected with Target protectors in order to block the endogenous miR-29a activity. Results We found that TAB1 is a novel target gene of miR-29a, also regulating downstream TIMP-1 production. TAB1 is involved in TGF-β signal transduction, a key cytokine triggering TIMP-1 production. To confirm that TAB1 is a bona fide target gene of miR-29a, we used a TAB1 3′UTR luciferase assay and Target protector system. We showed that miR-29a not only reduced TIMP-1 secretion via TAB1 repression, but also increased functional MMP-1 production resulting in collagen degradation. Blocking TAB1 activity by pharmacological inhibition or TAB1 knockdown resulted in TIMP-1 reduction, confirming TAB1-dependent TIMP-1 regulation. Enhanced expression of miR-29a was able to reverse the profibrotic phenotype of SSc fibroblasts via downregulation of collagen and TIMP-1. Conclusions miR-29a repressed TAB1-mediated TIMP-1 production in dermal fibroblasts, demonstrating that miR-29a may be a therapeutic target in SSc.
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Affiliation(s)
- Marzena Ciechomska
- Newcastle University, Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle upon Tyne, United Kingdom
- L. Hirszferd Institute of Immunology and Experimental Therapy, Polish Academy of Science, Wroclaw, Poland
- * E-mail:
| | - Steven O’Reilly
- Newcastle University, Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle upon Tyne, United Kingdom
| | - Monika Suwara
- Newcastle University, Fibrosis Research Group, Institute of Cellular Medicine, Newcastle upon Tyne, United Kingdom
| | - Katarzyna Bogunia-Kubik
- L. Hirszferd Institute of Immunology and Experimental Therapy, Polish Academy of Science, Wroclaw, Poland
| | - Jacob M. van Laar
- Newcastle University, Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle upon Tyne, United Kingdom
- University Medical Center Utrecht, Department of Rheumatology & Clinical Immunology, Utrecht, the Netherlands
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Voiles L, Lewis DE, Han L, Lupov IP, Lin TL, Robertson MJ, Petrache I, Chang HC. Overexpression of type VI collagen in neoplastic lung tissues. Oncol Rep 2014; 32:1897-904. [PMID: 25176343 PMCID: PMC4203334 DOI: 10.3892/or.2014.3438] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 07/18/2014] [Indexed: 01/19/2023] Open
Abstract
Type VI collagen (COL6), an extracellular matrix protein, is important in maintaining the integrity of lung tissue. An increase in COL6 mRNA and protein deposition was found in the lungs of patients with pulmonary fibrosis, a chronic inflammatory condition with a strong association with lung cancer. In the present study, we demonstrated overexpression of COL6 in the lungs of non-small cell lung cancers. We hypothesized that excessive COL6 in the lung interstitium may exert stimulatory effects on the adjacent cells. In vitro stimulation of monocytes with COL6 resulted in the production of IL-23, which may promote tumor development in an environment of IL-23-mediated lung inflammation, where tissue modeling occurs concurrently with excessive COL6 production. In addition, COL6 was capable of stimulating signaling pathways that activate focal adhesion kinase and extracellular signal-regulated kinase 1/2 in lung epithelial cells, which may also facilitate the development of lung neoplasms. Taken together, our data suggest the potential role of COL6 in promoting lung neoplasia in diseased lungs where COL6 is overexpressed.
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Affiliation(s)
- Larry Voiles
- Department of Biology, Indiana University-Purdue University Indianapolis School of Science, Indianapolis, IN, USA
| | - David E Lewis
- Department of Biology, Indiana University-Purdue University Indianapolis School of Science, Indianapolis, IN, USA
| | - Ling Han
- Department of Biology, Indiana University-Purdue University Indianapolis School of Science, Indianapolis, IN, USA
| | - Ivan P Lupov
- Department of Biology, Indiana University-Purdue University Indianapolis School of Science, Indianapolis, IN, USA
| | - Tsang-Long Lin
- Department of Comparative Pathobiology, Animal Disease Diagnostic Laboratory, Purdue University College of Veterinary Medicine, West Lafayette, IN, USA
| | - Michael J Robertson
- The Bone Marrow and Stem Cell Transplantation Program, Lymphoma Program and the Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Irina Petrache
- Division of Pulmonary, Allergy, Critical Care, Occupational and Sleep Medicine, Department of Medicine, Indiana University School of Medicine and the ̔Richard L. Roudebush' VA Medical Center, Indianapolis, IN, USA
| | - Hua-Chen Chang
- Department of Biology, Indiana University-Purdue University Indianapolis School of Science, Indianapolis, IN, USA
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Hussain S, Sangtian S, Anderson SM, Snyder RJ, Marshburn JD, Rice AB, Bonner JC, Garantziotis S. Inflammasome activation in airway epithelial cells after multi-walled carbon nanotube exposure mediates a profibrotic response in lung fibroblasts. Part Fibre Toxicol 2014; 11:28. [PMID: 24915862 PMCID: PMC4067690 DOI: 10.1186/1743-8977-11-28] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 06/03/2014] [Indexed: 11/10/2022] Open
Abstract
Background In vivo studies have demonstrated the ability of multi-walled carbon nanotubes (MWCNT) to induce airway remodeling, a key feature of chronic respiratory diseases like asthma and chronic obstructive pulmonary disease. However, the mechanism leading to remodeling is poorly understood. Particularly, there is limited insight about the role of airway epithelial injury in these changes. Objectives We investigated the mechanism of MWCNT-induced primary human bronchial epithelial (HBE) cell injury and its contribution in inducing a profibrotic response. Methods Primary HBE cells were exposed to thoroughly characterized MWCNTs (1.5-24 μg/mL equivalent to 0.37-6.0 μg/cm2) and MRC-5 human lung fibroblasts were exposed to 1:4 diluted conditioned medium from these cells. Flow cytometry, ELISA, immunostainings/immunoblots and PCR analyses were employed to study cellular mechanisms. Results MWCNT induced NLRP3 inflammasome dependent pyroptosis in HBE cells in a time- and dose-dependent manner. Cell death and cytokine production were significantly reduced by antioxidants, siRNA to NLRP3, a caspase-1 inhibitor (z-WEHD-FMK) or a cathepsin B inhibitor (CA-074Me). Conditioned medium from MWCNT-treated HBE cells induced significant increase in mRNA expression of pro-fibrotic markers (TIMP-1, Tenascin-C, Procollagen 1, and Osteopontin) in human lung fibroblasts, without a concomitant change in expression of TGF-beta. Induction of pro-fibrotic markers was significantly reduced when IL-1β, IL-18 and IL-8 neutralizing antibodies were added to the conditioned medium or when conditioned medium from NLRP3 siRNA transfected HBE cells was used. Conclusions Taken together these results demonstrate induction of a NLRP3 inflammasome dependent but TGF-beta independent pro-fibrotic response after MWCNT exposure.
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Affiliation(s)
- Salik Hussain
- Clinical Research Unit, National Institute of Environmental Health Sciences (NIEHS)/National Institute of Health (NIH), Research Triangle Park, Durham, NC, USA.
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Brandsma CA, Timens W, Jonker MR, Rutgers B, Noordhoek JA, Postma DS. Differential effects of fluticasone on extracellular matrix production by airway and parenchymal fibroblasts in severe COPD. Am J Physiol Lung Cell Mol Physiol 2013; 305:L582-9. [PMID: 23997174 DOI: 10.1152/ajplung.00152.2013] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is characterized by abnormal repair in the lung resulting in airway obstruction associated with emphysema and peripheral airway fibrosis. Because the presence and degree of airways disease and emphysema varies between COPD patients, this may explain the heterogeneity in the response to treatment. It is currently unknown whether and to what extent inhaled steroids can affect the abnormal repair process in the airways and lung parenchyma in COPD. We investigated the effects of fluticasone on transforming growth factor (TGF)-β- and cigarette smoke-induced changes in mothers against decapentaplegic homolog (Smad) signaling and extracellular matrix (ECM) production in airway and parenchymal lung fibroblasts from patients with severe COPD. We showed that TGF-β-induced ECM production by pulmonary fibroblasts, but not activation of the Smad pathway, was sensitive to the effects of fluticasone. Fluticasone induced decorin production by airway fibroblasts and partly reversed the negative effects of TGF-β treatment. Fluticasone inhibited biglycan production in both airway and parenchymal fibroblasts and procollagen 1 production only in parenchymal fibroblasts, thereby restoring the basal difference in procollagen 1 production between airway and parenchymal fibroblasts. Our findings suggest that the effects of steroids on the airway compartment may be beneficial for patients with severe COPD, i.e., restoration of decorin loss around the airways, whereas the effects of steroids on the parenchyma may be detrimental, since the tissue repair response, i.e., biglycan and procollagen production, is inhibited. More research is needed to further disentangle these differential effects of steroid treatment on the different lung compartments and its impact on tissue repair and remodeling in COPD.
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Affiliation(s)
- Corry-Anke Brandsma
- Dept. of Pathology and Medical Biology, Univ. Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, the Netherlands.
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Hsieh MH, Chou PC, Chou CL, Ho SC, Joa WC, Chen LF, Sheng TF, Lin HC, Wang TY, Chang PJ, Wang CH, Kuo HP. Matrix metalloproteinase-1 polymorphism (-1607G) and disease severity in non-cystic fibrosis bronchiectasis in Taiwan. PLoS One 2013; 8:e66265. [PMID: 23776649 PMCID: PMC3679085 DOI: 10.1371/journal.pone.0066265] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 05/02/2013] [Indexed: 01/02/2023] Open
Abstract
Objectives Bronchiectasis is characterized by an irreversible dilatation of bronchi and is associated with lung fibrosis. MMP-1 polymorphism may alter its transcriptional activity, and differentially modulate bronchial destruction and lung fibrosis. Design To investigate the association of MMP-1 polymorphisms with disease severity in non-cystic fibrosis (CF) bronchiectasis patients, 51 normal subjects and 113 patients with bronchiectasis were studied. The associations between MMP-1 polymorphisms, lung function, and disease severity evaluated by high resolution computed tomography (HRCT) were analyzed. Results The frequency of MMP-1(-1607G) allele was significantly higher in patients with bronchiectasis than normal subjects (70.8% vs 45.1%, p<0.01). Forced expiratory volume in 1 second (FEV1) was decreased in bronchiectasis patients with 1G/1G (1.2±0.1 L, n = 14) and 1G/2G (1.3±0.1 L, n = 66) genotypes compared to the 2G/2G genotype (1.7±0.1 L, n = 33, p<0.01). Six minute walking distance was decreased in bronchiectasis patients with 1G/1G and 1G/2G compared to that of 2G/2G genotype. Disease severity evaluated by HRCT score significantly increased in bronchiectasis patients with 1G/1G and 1G/2G genotypes compared to that of 2G/2G genotype. Bronchiectasis patients with at least one MMP-1 (-1607G) allele showed increased tendency for hospitalization. Serum levels of pro-MMP-1, active MMP-1 and TGF-β1 were significantly increased in patients with bronchiectasis with 1G/1G and 1G/2G genotype compared with 2G/2G genotype or normal subjects. Under IL-1β stimulation, peripheral blood monocytes from subjects with 1G/2G or 1G/1G genotype secreted higher levels of TGF-β1compared to subjects with 2G/2G genotype. Conclusion This is the first report to address the influence of MMP-1 polymorphisms on lung function and airway destruction in non-CF bronchiectasis patients. Bronchiectasis patients with MMP-1(-1607G) polymorphism may be more vulnerable to permanent lung fibrosis or airway destruction due to the enhanced MMP-1 and TGF-β1 activity. Upregulated MMP-1 activity results in proteolytic destruction of matrix, and leads to subsequent fibrosis.
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Affiliation(s)
- Meng-Heng Hsieh
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Pai-Chien Chou
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Chun-Liang Chou
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Shu-Chuan Ho
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Ching Joa
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Li-Fei Chen
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Te-Fang Sheng
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Horng-Chyuan Lin
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Tsai-Yu Wang
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Po-Jui Chang
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Chun-Hua Wang
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
- * E-mail:
| | - Han-Pin Kuo
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
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Finnson KW, McLean S, Di Guglielmo GM, Philip A. Dynamics of Transforming Growth Factor Beta Signaling in Wound Healing and Scarring. Adv Wound Care (New Rochelle) 2013; 2:195-214. [PMID: 24527343 PMCID: PMC3857355 DOI: 10.1089/wound.2013.0429] [Citation(s) in RCA: 201] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Indexed: 12/12/2022] Open
Abstract
SIGNIFICANCE Wound healing is an intricate biological process in which the skin, or any other tissue, repairs itself after injury. Normal wound healing relies on the appropriate levels of cytokines and growth factors to ensure that cellular responses are mediated in a coordinated manner. Among the many growth factors studied in the context of wound healing, transforming growth factor beta (TGF-β) is thought to have the broadest spectrum of effects. RECENT ADVANCES Many of the molecular mechanisms underlying the TGF-β/Smad signaling pathway have been elucidated, and the role of TGF-β in wound healing has been well characterized. Targeting the TGF-β signaling pathway using therapeutic agents to improve wound healing and/or reduce scarring has been successful in pre-clinical studies. CRITICAL ISSUES Although TGF-β isoforms (β1, β2, β3) signal through the same cell surface receptors, they display distinct functions during wound healing in vivo through mechanisms that have not been fully elucidated. The challenge of translating preclinical studies targeting the TGF-β signaling pathway to a clinical setting may require more extensive preclinical research using animal models that more closely mimic wound healing and scarring in humans, and taking into account the spatial, temporal, and cell-type-specific aspects of TGF-β isoform expression and function. FUTURE DIRECTIONS Understanding the differences in TGF-β isoform signaling at the molecular level and identification of novel components of the TGF-β signaling pathway that critically regulate wound healing may lead to the discovery of potential therapeutic targets for treatment of impaired wound healing and pathological scarring.
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Affiliation(s)
- Kenneth W. Finnson
- Division of Plastic Surgery, Department of Surgery, Montreal General Hospital, McGill University, Montreal, Canada
| | - Sarah McLean
- Department of Physiology and Pharmacology, Western University, London, Canada
| | | | - Anie Philip
- Division of Plastic Surgery, Department of Surgery, Montreal General Hospital, McGill University, Montreal, Canada
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Derricks KE, Rich CB, Buczek-Thomas JA, Nugent MA. Ascorbate enhances elastin synthesis in 3D tissue-engineered pulmonary fibroblasts constructs. Tissue Cell 2013; 45:253-60. [PMID: 23648172 DOI: 10.1016/j.tice.2013.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 02/14/2013] [Accepted: 03/13/2013] [Indexed: 12/19/2022]
Abstract
Extracellular matrix remodeling is a continuous process that is critical to maintaining tissue homeostasis, and alterations in this process have been implicated in chronic diseases such as atherosclerosis, lung fibrosis, and emphysema. Collagen and elastin are subject to ascorbate-dependent hydroxylation. While this post-translational modification in collagen is critical for function, the role of hydroxylation of elastin is not well understood. A number of studies have indicated that ascorbate leads to reduced elastin synthesis. However, these studies were limited to analysis of cells grown under traditional 2D tissue culture conditions. To investigate this process we evaluated elastin and collagen synthesis in primary rat neonatal pulmonary fibroblasts in response to ascorbate treatment in traditional 2D culture and within 3D cross-linked gelatin matrices (Gelfoam). We observed little change in elastin or collagen biosynthesis in standard 2D cultures treated with ascorbate, yet observed a dramatic increase in elastin protein and mRNA levels in response to ascorbate in 3D cell-Gelfoam constructs. These data suggest that the cell-ECM architecture dictates pulmonary cell response to ascorbate, and that approaches aimed toward stimulating ECM repair or engineering functional cell-derived matrices should consider all aspects of the cellular environment.
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Affiliation(s)
- Kelsey E Derricks
- Department of Medicine, Boston University School of Medicine, Boston, MA, United States
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Gao Y, Xu X, Ding K, Liang Y, Jiang D, Dai H. Rapamycin inhibits transforming growth factor β1-induced fibrogenesis in primary human lung fibroblasts. Yonsei Med J 2013; 54:437-44. [PMID: 23364979 PMCID: PMC3576000 DOI: 10.3349/ymj.2013.54.2.437] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
PURPOSE The present study was designed to determine whether rapamycin could inhibit transforming growth factor β1 (TGF-β1)-induced fibrogenesis in primary lung fibroblasts, and whether the effect of inhibition would occur through the mammalian target of rapamycin (mTOR) and its downstream p70S6K pathway. MATERIALS AND METHODS Primary normal human lung fibroblasts were obtained from histological normal lung tissue of 3 patients with primary spontaneous pneumothorax. Growth arrested, synchronized fibroblasts were treated with TGF-β1 (10 ng/mL) and different concentrations of rapamycin (0.01, 0.1, 1, 10 ng/mL) for 24 h. We assessed m-TOR, p-mTOR, S6K1, p-S6K1 by Western blot analysis, detected type III collagen and fibronectin secreting by ELISA assay, and determined type III collagen and fibronectin mRNA levels by real-time PCR assay. RESULTS Rapamycin significantly reduced TGF-β1-induced type III collagen and fibronectin levels, as well as type III collagen and fibronectin mRNA levels. Furthermore, we also found that TGF-β1-induced mTOR and p70S6K phosphorylation were significantly down-regulated by rapamycin. The mTOR/p70S6K pathway was activated through the TGF-β1-mediated fibrogenic response in primary human lung fibroblasts. CONCLUSION These results indicate that rapamycin effectively suppresses TGF-β1-induced type III collagen and fibronectin levels in primary human lung fibroblasts partly through the mTOR/p70S6K pathway. Rapamycin has a potential value in the treatment of pulmonary fibrosis.
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Affiliation(s)
- Yu Gao
- Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing, China
| | - Xuefeng Xu
- Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing, China
| | - Ke Ding
- Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing, China
| | - Yan Liang
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing, China
| | - Dianhua Jiang
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing, China
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Huaping Dai
- Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing, China
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Menon SN, Flegg JA, McCue SW, Schugart RC, Dawson RA, McElwain DLS. Modelling the interaction of keratinocytes and fibroblasts during normal and abnormal wound healing processes. Proc Biol Sci 2012; 279:3329-38. [PMID: 22628464 PMCID: PMC3385718 DOI: 10.1098/rspb.2012.0319] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Accepted: 04/27/2012] [Indexed: 12/20/2022] Open
Abstract
The crosstalk between fibroblasts and keratinocytes is a vital component of the wound healing process, and involves the activity of a number of growth factors and cytokines. In this work, we develop a mathematical model of this crosstalk in order to elucidate the effects of these interactions on the regeneration of collagen in a wound that heals by second intention. We consider the role of four components that strongly affect this process: transforming growth factor-β, platelet-derived growth factor, interleukin-1 and keratinocyte growth factor. The impact of this network of interactions on the degradation of an initial fibrin clot, as well as its subsequent replacement by a matrix that is mainly composed of collagen, is described through an eight-component system of nonlinear partial differential equations. Numerical results, obtained in a two-dimensional domain, highlight key aspects of this multifarious process, such as re-epithelialization. The model is shown to reproduce many of the important features of normal wound healing. In addition, we use the model to simulate the treatment of two pathological cases: chronic hypoxia, which can lead to chronic wounds; and prolonged inflammation, which has been shown to lead to hypertrophic scarring. We find that our model predictions are qualitatively in agreement with previously reported observations and provide an alternative pathway for gaining insight into this complex biological process.
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Affiliation(s)
- Shakti N. Menon
- School of Mathematical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia
| | - Jennifer A. Flegg
- School of Mathematical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia
| | - Scott W. McCue
- School of Mathematical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia
| | - Richard C. Schugart
- Department of Mathematics and Computer Science, Western Kentucky University, 1906 College Heights Boulevard, Bowling Green, KY 42101-1078, USA
| | - Rebecca A. Dawson
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia
| | - D. L. Sean McElwain
- School of Mathematical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia
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Bianchetti L, Barczyk M, Cardoso J, Schmidt M, Bellini A, Mattoli S. Extracellular matrix remodelling properties of human fibrocytes. J Cell Mol Med 2012; 16:483-95. [PMID: 21595824 PMCID: PMC3822925 DOI: 10.1111/j.1582-4934.2011.01344.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The fibrocytes are thought to serve as a source of newly deposited collagens I and III during reparative processes and in certain fibrotic disorders, but their matrix remodelling properties are incompletely understood. We evaluated their ability to produce several extracellular matrix (ECM) components, in comparison with fibroblasts, and to participate in collagen turnover. The collagen gene expression profile of fibrocytes differed from that of fibroblasts because fibrocytes constitutively expressed relatively high levels of the mRNA encoding collagen VI and significantly lower levels of the mRNA encoding collagens I, III and V. The proteoglycan (PG) gene expression profile was also different in fibrocytes and fibroblasts because fibrocytes constitutively expressed the mRNA encoding perlecan and versican at relatively high levels and the mRNA encoding biglycan and decorin at low and very low levels, respectively. Moreover, fibrocytes expressed the mRNA for hyaluronan synthase 2 at higher level than fibroblasts. Significant differences between the two cell populations were also demonstrated by metabolic labelling and analysis of the secreted collagenous proteins, PGs and hyaluronan. Fibrocytes constitutively expressed the scavenger receptors CD163 and CD204 as well as the mannose receptors CD206 and Endo180, and internalized and degraded collagen fragments through an Endo180-mediated mechanism. The results of this study demonstrate that human fibrocytes exhibit ECM remodelling properties previously unexplored, including the ability to participate in collagen turnover. The observed differences in collagen and PG expression profile between fibrocytes and fibroblasts suggest that fibrocytes may predominantly have a matrix-stabilizing function.
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Marinković A, Mih JD, Park JA, Liu F, Tschumperlin DJ. Improved throughput traction microscopy reveals pivotal role for matrix stiffness in fibroblast contractility and TGF-β responsiveness. Am J Physiol Lung Cell Mol Physiol 2012; 303:L169-80. [PMID: 22659883 DOI: 10.1152/ajplung.00108.2012] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Lung fibroblast functions such as matrix remodeling and activation of latent transforming growth factor-β1 (TGF-β1) are associated with expression of the myofibroblast phenotype and are directly linked to fibroblast capacity to generate force and deform the extracellular matrix. However, the study of fibroblast force-generating capacities through methods such as traction force microscopy is hindered by low throughput and time-consuming procedures. In this study, we improved at the detail level methods for higher-throughput traction measurements on polyacrylamide hydrogels using gel-surface-bound fluorescent beads to permit autofocusing and automated displacement mapping, and transduction of fibroblasts with a fluorescent label to streamline cell boundary identification. Together these advances substantially improve the throughput of traction microscopy and allow us to efficiently compute the forces exerted by lung fibroblasts on substrates spanning the stiffness range present in normal and fibrotic lung tissue. Our results reveal that lung fibroblasts dramatically alter the forces they transmit to the extracellular matrix as its stiffness changes, with very low forces generated on matrices as compliant as normal lung tissue. Moreover, exogenous TGF-β1 selectively accentuates tractions on stiff matrices, mimicking fibrotic lung, but not on physiological stiffness matrices, despite equivalent changes in Smad2/3 activation. Taken together, these results demonstrate a pivotal role for matrix mechanical properties in regulating baseline and TGF-β1-stimulated contraction of lung fibroblasts and suggest that stiff fibrotic lung tissue may promote myofibroblast activation through contractility-driven events, whereas normal lung tissue compliance may protect against such feedback amplification of fibroblast activation.
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Affiliation(s)
- Aleksandar Marinković
- Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts 02115, USA
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Murphy KE, Hall CL, Maini PK, McCue SW, McElwain DLS. A Fibrocontractive Mechanochemical Model of Dermal Wound Closure Incorporating Realistic Growth Factor Kinetics. Bull Math Biol 2012; 74:1143-70. [DOI: 10.1007/s11538-011-9712-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 12/15/2011] [Indexed: 11/30/2022]
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Rassler B, Marx G, Schierle K, Zimmer HG. Catecholamines Can Induce Pulmonary Remodeling in Rats. Cell Physiol Biochem 2012; 30:1134-47. [DOI: 10.1159/000343304] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2012] [Indexed: 12/25/2022] Open
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Zhang F, Banker G, Liu X, Suwanabol PA, Lengfeld J, Yamanouchi D, Kent KC, Liu B. The novel function of advanced glycation end products in regulation of MMP-9 production. J Surg Res 2011; 171:871-6. [PMID: 20638679 PMCID: PMC3623272 DOI: 10.1016/j.jss.2010.04.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Revised: 03/26/2010] [Accepted: 04/15/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND Advanced glycation end products (AGEs), formed from proteins and peptides by nonenzymatic glycoxidation after contact with aldose sugars, have been implicated in the pathogenesis of age-related cardiac and vascular dysfunction. Our previous study demonstrated significantly elevated levels of AGE and the receptor for AGE (RAGE) in human abdominal aortic aneurysm (AAA) tissues. Inhibition of AGE signaling by targeted gene deletion of RAGE markedly reduced the development of aneurysm in a mouse model of AAA. We also showed that AGE may stimulate aneurysm formation by promoting metalloproteinase (MMP)-9 expression. In this study, we investigated the molecular mechanism underlying this novel function of AGE. METHODS The murine macrophage cell line RAW 264.7 was pretreated with AGE, TGF-β, and MAPK inhibitors. The protein was collected for Western blot analysis. Culture supernatants were collected to determine MMP-9 activity by gelatin zymography. RESULTS We found that AGE induced the production of MMP-9 in macrophages in a dose-dependent manner. This induction of MMP-9 was markedly diminished by pretreatment with TGF-β. To delineate the underlying molecular mechanism, we showed that AGE increased phosphorylation of p44/42 ERK, p38, JNK, and PI3K in macrophages. Moreover, AGE induced active p65 subunit of NF- κB. Inhibition of ERK (UO126) or p38 (SB203580), but not PI3K (LY294002 or wortmannin), blocked AGE-induced MMP-9 expression. In contrast, inhibition of JNK (SP-600125) significantly enhanced the stimulatory effect of AGE on MMP-9. Furthermore, TGF-β suppressed AGE-induced expression of the active p65 subunit of NF-κB. CONCLUSIONS Our data indicate that AGE induces MMP-9 through activation of ERK, p38 mitogen-activated protein and NF-κB, a pathway that is antagonized by TGF-β. This finding in conjunction with previously reported AGE functions in inflammation suggests that anti-AGE therapies could be effective in the prevention of human AAA development and progression.
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Affiliation(s)
- Fan Zhang
- Department of Surgery, Division of Vascular Surgery, University of Wisconsin School of Medicine, Madison, Wisconsin
| | - Greg Banker
- Department of Surgery, Division of Vascular Surgery, University of Wisconsin School of Medicine, Madison, Wisconsin
| | - Xiaodong Liu
- Department of Surgery, Division of Vascular Surgery, University of Wisconsin School of Medicine, Madison, Wisconsin
| | - Pasithorn A. Suwanabol
- Department of Surgery, Division of Vascular Surgery, University of Wisconsin School of Medicine, Madison, Wisconsin
| | - Justin Lengfeld
- Department of Surgery, Division of Vascular Surgery, University of Wisconsin School of Medicine, Madison, Wisconsin
| | - Dai Yamanouchi
- Department of Surgery, Division of Vascular Surgery, University of Wisconsin School of Medicine, Madison, Wisconsin
| | - K. Craig Kent
- Department of Surgery, Division of Vascular Surgery, University of Wisconsin School of Medicine, Madison, Wisconsin
| | - Bo Liu
- Department of Surgery, Division of Vascular Surgery, University of Wisconsin School of Medicine, Madison, Wisconsin
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Zhou Q, Pardo A, Königshoff M, Eickelberg O, Budinger GRS, Thavarajah K, Gottardi CJ, Jones J, Varga J, Selman M, Sznajder JI, Raj JU, Zhou G. Role of von Hippel-Lindau protein in fibroblast proliferation and fibrosis. FASEB J 2011; 25:3032-44. [PMID: 21642472 DOI: 10.1096/fj.10-177824] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is characterized by exaggerated fibroblast proliferation and accumulation of collagens and fibronectin. The extracellular fibronectin and collagen network is regulated by von Hippel-Lindau protein (pVHL). However, it is unknown whether pVHL contributes to pulmonary fibrosis. We found that lungs from patients with IPF expressed increased levels of pVHL in fibroblastic foci. Bleomycin treatment also induced pVHL in lung fibroblasts, but not in alveolar type II cells. Overexpression of pVHL increased lung fibroblast proliferation, protein abundance of fibronectin and collagen, and extracellular fibronectin. In addition, overexpression of pVHL induced expression of the α5 integrin subunit. Overexpression of pVHL did not alter hypoxia-inducible factor luciferase reporter activity and mRNA expression of vascular endothelial growth factor. Fibroblasts overexpressing pVHL were more sensitive to RGD peptide-mediated reduction in proliferation. Activating α5 and β1 integrin increased proliferation of fibroblasts overexpressing pVHL and those cells were more resistant to the inhibition of α5 integrin. Overexpression of pVHL also increased activation of focal adhesion kinase (FAK). Moreover, suppression of pVHL prevented TGF-β1-induced proliferation of mouse embryonic fibroblasts. Taken together, our results indicate that elevated expression of pVHL results in the aberrant fibronectin expression, activation of integrin/FAK signaling, fibroblast proliferation, and fibrosis.
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Affiliation(s)
- Qiyuan Zhou
- Department of Pediatrics, University of Illinois at Chicago, Chicago, IL 60612, USA
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Yoshida T, Ohnuma A, Horiuchi H, Harada T. Pulmonary fibrosis in response to environmental cues and molecular targets involved in its pathogenesis. J Toxicol Pathol 2011; 24:9-24. [PMID: 22272040 PMCID: PMC3234628 DOI: 10.1293/tox.24.9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Accepted: 11/25/2010] [Indexed: 12/27/2022] Open
Abstract
Chronic lung injury resulting from a variety of different causes is frequently associated with the develop ment of pulmonary fibrosis in humans. Although the etiology of pulmonary fibrosis is generally unknown, several sources of evidence support the hypothesis that a number of environmental and occupational agents play an etiologic role in the pathogenesis of this disease. The agents discussed in this review include beryllium, nylon flock, textile printing aerosols, polyvinyl chloride and didecyldimethylammonium chloride. The authors also describe a variety of animal models, including genetically modified mice, in order to investigate the molecular mechanism of pulmonary fibrosis, focusing on chemokine receptors, regulatory T cells and transforming growth factor-β and bone morphogenetic protein signaling. Overall, we propose the concept of toxicological pulmonary fibrosis as a lung disease induced in response to environmental cues.
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Affiliation(s)
- Toshinori Yoshida
- Laboratory of Pathology, Toxicology Division, The Institute
of Environmental Toxicology, 4321 Uchimoriya-machi, Joso, Ibaraki 303-0043, Japan
| | - Aya Ohnuma
- Laboratory of Pathology, Toxicology Division, The Institute
of Environmental Toxicology, 4321 Uchimoriya-machi, Joso, Ibaraki 303-0043, Japan
| | - Haruka Horiuchi
- Laboratory of Pathology, Toxicology Division, The Institute
of Environmental Toxicology, 4321 Uchimoriya-machi, Joso, Ibaraki 303-0043, Japan
| | - Takanori Harada
- The Institute of Environmental Toxicology, 4321
Uchimoriya-machi, Joso, Ibaraki 303-0043, Japan
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Lee S, Thiele C. Factors associated with free flap complications after head and neck reconstruction and the molecular basis of fibrotic tissue rearrangement in preirradiated soft tissue. J Oral Maxillofac Surg 2010; 68:2169-78. [PMID: 20605307 DOI: 10.1016/j.joms.2009.08.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Accepted: 08/24/2009] [Indexed: 10/19/2022]
Abstract
PURPOSE Several factors are associated with free flap complications in head and neck reconstruction after radiotherapy. The present study aimed to identify the correlation between irradiation and the healing of wounds after microvascular free flap transfer and to clarify the molecular mechanisms for the differences in healing between irradiated and nonirradiated patients. PATIENTS AND METHODS A retrospective study of 81 cases of microvascular free flap transfer was conducted. Tissue samples were obtained from 3 different regions of the patients (nonirradiated oral mucosa, irradiated skin, and nonirradiated skin). Expression of transforming growth factor-beta(1) was monitored by immunohistochemistry and immunoblot analysis. The levels of matrix metalloproteinase-1 and tissue inhibitor of matrix metalloproteinase-1 were investigated qualitatively and quantitatively. RESULTS Multivariate analysis revealed that only preoperative irradiation was a significant predictor of free flap complications (P = .006), with a 4 times greater risk (odds ratio 4.141). It was also shown that patients with an advanced tumor stage and those who had received chemotherapy after radiotherapy were twice as likely to develop free flap complications. Transforming growth factor-beta(1) was overexpressed in free flaps for as long as 6 months after radiotherapy. It was remarkably observed in the granulation tissue in the preirradiated skin. Moreover, extracellular matrix remodeling regulated by transforming growth factor-beta(1) was detected with decreased matrix metalloproteinase-1 and increased TIMP-1 expression in the irradiated skin. CONCLUSION The healing of surgical wounds created by microvascular free flap transfer correlated negatively with preoperative radiotherapy. Extracellular matrix remodeling was also detectable in the free flap for up to 6 months after radiotherapy completion.
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Affiliation(s)
- Sooyeon Lee
- Department of Oral and Craniomaxillofacial Surgery/Plastic Surgery, University of Jena, Jena, Thueringen, Germany.
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Yue X, Shan B, Lasky JA. TGF-β: Titan of Lung Fibrogenesis. CURRENT ENZYME INHIBITION 2010. [PMID: 24187529 DOI: 10.2174/10067 (2010)] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pulmonary fibrosis is characterized by epithelial cell injury, accumulation of myofibroblasts, and excessive deposition of collagen and other extracellular matrix elements, leading to loss of pulmonary function. Studies in both humans and animal models strongly suggest that TGF-β1 plays a pivotal role in the pathogenesis of pulmonary fibrosis. This review will first give an overview of TGF-β signaling and the effects of its inhibition on lung fibrogenesis. This overview includes information on TGF-β signal transduction pathways, the importance of TGF-β in the accumulation of myofibroblasts, the role of TGF-β in epithelial injury and apoptosis, the role of TGF-β in extracellular matrix remodeling, and the effects of inhibiting TGF-β signaling in animal models of lung fibrosis. Subsequently this review will highlight recent advances in two areas of particular interest to our research group: (1) TGF-β and proteoglycans; (2) TGF-β and histone deacetylases. Although our understanding of the role of TGF-β and its mechanisms of action in lung fibrogenesis has increased dramatically in recent years, there is still much to be learned about this important molecule, especially how TGF-β function is modulated in vivo, and its complex interactions with other factors expressed during lung injury and repair. Research in these areas will help identify novel therapeutic targets for the treatment of pulmonary fibrosis that will hopefully improve the prognosis of this devastating illness.
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Affiliation(s)
- Xinping Yue
- Department of Medicine, Section of Pulmonary Diseases, Critical Care and Environmental Medicine, Tulane University Health Sciences Center, New Orleans, LA 70112, USA
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