1
|
Kodiha M, Azad N, Chu S, Crampton N, Stochaj U. Oxidative stress and signaling through EGFR and PKA pathways converge on the nuclear transport factor RanBP1. Eur J Cell Biol 2024; 103:151376. [PMID: 38011756 DOI: 10.1016/j.ejcb.2023.151376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/01/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023] Open
Abstract
Nuclear protein trafficking requires the soluble transport factor RanBP1. The subcellular distribution of RanBP1 is dynamic, as the protein shuttles between the nucleus and cytoplasm. To date, the signaling pathways regulating RanBP1 subcellular localization are poorly understood. During interphase, RanBP1 resides mostly in the cytoplasm. We show here that oxidative stress concentrates RanBP1 in the nucleus, and our study defines the underlying mechanisms. Specifically, RanBP1's cysteine residues are not essential for its oxidant-induced relocation. Furthermore, our pharmacological approaches uncover that signaling mediated by epidermal growth factor receptor (EGFR) and protein kinase A (PKA) control RanBP1 localization during stress. In particular, pharmacological inhibitors of EGFR or PKA diminish the oxidant-dependent relocation of RanBP1. Mutant analysis identified serine 60 and tyrosine 103 as regulators of RanBP1 nuclear accumulation during oxidant exposure. Taken together, our results define RanBP1 as a target of oxidative stress and a downstream effector of EGFR and PKA signaling routes. This positions RanBP1 at the intersection of important cellular signaling circuits.
Collapse
Affiliation(s)
- Mohamed Kodiha
- Department of Physiology McGill University, Montreal H3G 1Y6, Canada
| | - Nabila Azad
- Department of Physiology McGill University, Montreal H3G 1Y6, Canada
| | - Siwei Chu
- Department of Physiology McGill University, Montreal H3G 1Y6, Canada
| | - Noah Crampton
- Department of Physiology McGill University, Montreal H3G 1Y6, Canada
| | - Ursula Stochaj
- Department of Physiology McGill University, Montreal H3G 1Y6, Canada.
| |
Collapse
|
2
|
Hamberg V, Sohrabian A, Volkmann ER, Wildt M, Löfdahl A, Wuttge DM, Hesselstrand R, Dellgren G, Westergren-Thorsson G, Rönnelid J, Andréasson K. Anti-Ro52 positivity is associated with progressive interstitial lung disease in systemic sclerosis-an exploratory study. Arthritis Res Ther 2023; 25:162. [PMID: 37667402 PMCID: PMC10476305 DOI: 10.1186/s13075-023-03141-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 08/18/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Interstitial lung disease (ILD) is the most common cause of death in patients with systemic sclerosis (SSc). Prognostic biomarkers are needed to identify SSc-ILD patients at risk for progressive pulmonary fibrosis. This study investigates autoantibodies measured in bronchoalveolar lavage (BAL) fluid and in serum in reference to the clinical disease course of SSc-ILD. METHODS Fifteen patients with new onset SSc-ILD underwent bronchoscopy. Autoantibody levels were analyzed using addressable laser bead immunoassay from BAL fluid and the serum. In a separate longitudinal cohort of 43 patients with early SSc-ILD, autoantibodies in serum were measured at baseline and pulmonary function tests were performed at least 2 times over the course of at least 2 or more years. Linear mixed effect models were created to investigate the relationship between specific autoantibodies and progression of SSc-ILD. Finally, lung tissue from healthy controls and from subjects with SSc was analyzed for the presence of the Ro52 antigen using immunohistochemistry. RESULTS Among SSc-ILD patients who were positive for anti-Ro52 (N = 5), 3 (60%) had enrichment of anti-Ro52 in BAL fluid at a ratio exceeding 50x. In the longitudinal cohort, 10/43 patients (23%) were anti-Ro52 positive and 16/43 (37%) were anti-scl-70 positive. Presence of anti-Scl-70 was associated with a lower vital capacity (VC) at baseline (-12.6% predicted VC [%pVC]; 95%CI: -25.0, -0.29; p = 0.045), but was not significantly associated with loss of lung function over time (-1.07%pVC/year; 95%CI: -2.86, 0.71; p = 0.230). The presence of anti-Ro52 was significantly associated with the loss of lung function over time (-2.41%pVC/year; 95% CI: -4.28, -0.54; p = 0.013). Rate of loss of lung function increased linearly with increasing anti-Ro52 antibody levels (-0.03%pVC per arbitrary units/mL and year; 95%CI: -0.05, -0.02; p < 0.001). Immunohistochemical staining localized the Ro52 antigen to alveolar M2 macrophages in peripheral lung tissue both in subjects with and without SSc. CONCLUSIONS This study suggests that antibodies targeting Ro52 are enriched in the lungs of patients with new-onset SSc-ILD, linking Ro52 autoimmunity to the pulmonary pathology of SSc. Clinical and immunohistochemical data corroborates these findings and suggest that anti-Ro52 may serve as a potential biomarker of progressive SSc-ILD.
Collapse
Affiliation(s)
- Viggo Hamberg
- Section of Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden.
| | - Azita Sohrabian
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Elizabeth R Volkmann
- Department of Medicine, Division of Rheumatology, University of California, Los Angeles, CA, USA
- David Geffen School of Medicine, Los Angeles, CA, USA
| | - Marie Wildt
- Section of Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Anna Löfdahl
- Lung Biology, Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Dirk M Wuttge
- Section of Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Roger Hesselstrand
- Section of Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Göran Dellgren
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | | | - Johan Rönnelid
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Kristofer Andréasson
- Section of Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden
| |
Collapse
|
3
|
Wu Y, Li Y, Luo Y, Zhou Y, Liang X, Cheng L, Wu T, Wen J, Tan C, Liu Y. Proteomics: Potential techniques for discovering the pathogenesis of connective tissue diseases-interstitial lung disease. Front Immunol 2023; 14:1146904. [PMID: 37063894 PMCID: PMC10090492 DOI: 10.3389/fimmu.2023.1146904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
Interstitial lung disease (ILD) is one of the most serious lung complications of connective tissue disease (CTD). The application of proteomics in the past decade has revealed that various proteins are involved in the pathogenesis of each subtype of CTD-ILD through different pathways, providing novel ideas to study pathological mechanisms and clinical biomarkers. On this basis, a multidimensional diagnosis or prediction model is established. This paper reviews the results of proteomic detection of different subtypes of CTD-ILD and discusses the role of some differentially expressed proteins in the development of pulmonary fibrosis and their potential clinical applications.
Collapse
Affiliation(s)
- Yinlan Wu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Chengdu, China
| | - Yanhong Li
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Chengdu, China
| | - Yubin Luo
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Chengdu, China
| | - Yu Zhou
- Department of Respiratory and Critical Care Medicine, Chengdu First People’s Hospital, Chengdu, China
| | - Xiuping Liang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Chengdu, China
| | - Lu Cheng
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Chengdu, China
| | - Tong Wu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Chengdu, China
| | - Ji Wen
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Chengdu, China
| | - Chunyu Tan
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Chengdu, China
- *Correspondence: Chunyu Tan, ; Yi Liu,
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Chengdu, China
- *Correspondence: Chunyu Tan, ; Yi Liu,
| |
Collapse
|
4
|
Chairta PP, Nicolaou P, Christodoulou K. Enrichr in silico analysis of MS-based extracted candidate proteomic biomarkers highlights pathogenic pathways in systemic sclerosis. Sci Rep 2023; 13:1934. [PMID: 36732374 PMCID: PMC9894849 DOI: 10.1038/s41598-023-29054-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
Systemic sclerosis (SSc) is a rheumatic disease characterised by vasculopathy, inflammation and fibrosis. Its aetiopathogenesis is still unknown, and the pathways/mechanisms of the disease are not clarified. This study aimed to perform in silico analysis of the already Mass Spectrometry (MS)-based discovered biomarkers of SSc to extract possible pathways/mechanisms implicated in the disease. We recorded all published candidate MS-based found biomarkers related to SSc. We then selected a number of the candidate biomarkers using specific criteria and performed pathway and cellular component analyses using Enrichr. We used PANTHER and STRING to assess the biological processes and the interactions of the recorded proteins, respectively. Pathway analysis extracted several pathways that are associated with the three different stages of SSc pathogenesis. Some of these pathways are also related to other diseases, including autoimmune diseases. We observe that these biomarkers are located in several cellular components and implicated in many biological processes. STRING analysis showed that some proteins interact, creating significant clusters, while others do not display any evidence of an interaction. All these data highlight the complexity of SSc, and further investigation of the extracted pathways/biological processes and interactions may help study the disease from a different angle.
Collapse
Affiliation(s)
- Paraskevi P Chairta
- Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, 2371, Nicosia, Cyprus
| | - Paschalis Nicolaou
- Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, 2371, Nicosia, Cyprus
| | - Kyproula Christodoulou
- Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, 2371, Nicosia, Cyprus.
| |
Collapse
|
5
|
Lehtonen S, Kaarteenaho R. Bronchoalveolar-Lavage-Derived Fibroblast Cell Lines Provide Tools for Investigating Various Interstitial Lung Diseases. Cells 2022; 11:cells11142226. [PMID: 35883669 PMCID: PMC9318103 DOI: 10.3390/cells11142226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/08/2022] [Accepted: 07/12/2022] [Indexed: 01/25/2023] Open
Abstract
Bronchoalveolar lavage (BAL) is an important diagnostic and research tool for the investigation of various lung diseases. In addition to inflammatory and epithelial cells, BAL fluid may contain a small number of stromal cells, such as fibroblasts. During the past 30 years, a number of research groups have cultured BAL-derived fibroblasts for several passages in vitro. In addition to fibroblasts, these cultures have been reported to contain fibrocytes, myofibroblasts, and stem cells. We aim to present a summary of studies that have cultured stromal cells from BAL fluid.
Collapse
Affiliation(s)
- Siri Lehtonen
- PEDEGO Research Unit, University of Oulu, POB 8000, FIN-90014 Oulu, Finland;
- Department of Obstetrics and Gynecology, Medical Research Center Oulu, Oulu University Hospital, POB 10, FIN-90029 Oulu, Finland
| | - Riitta Kaarteenaho
- Research Unit of Internal Medicine, University of Oulu, POB 8000, FIN-90014 Oulu, Finland
- Center of Internal Medicine and Respiratory Medicine, Medical Research Center Oulu, Oulu University Hospital, POB 10, FIN-90029 Oulu, Finland
- Correspondence:
| |
Collapse
|
6
|
Kendall RT, Renaud L, Baatz JE, Malaab M, Nguyen XX, Feghali-Bostwick CA. Systemic sclerosis biomarkers detection in the secretome of TGFβ1-activated primary human lung fibroblasts. J Proteomics 2021; 242:104243. [PMID: 33930553 DOI: 10.1016/j.jprot.2021.104243] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 02/16/2021] [Accepted: 04/20/2021] [Indexed: 12/17/2022]
Abstract
TGFβ1 is a profibrotic mediator that contributes to a broad spectrum of pathologies, including systemic sclerosis-associated pulmonary fibrosis (SSc-PF). However, the secretome of TGFβ1-stimulated primary human normal lung (NL) fibroblasts has not been well characterized. Using fluorescent 2-dimensional gel electrophoresis (2D-PAGE) and differential gel electrophoresis (DIGE) followed by Mass Spectrometry, we identified 37 differentially secreted proteins in the conditioned media of TGFβ1-activated NL fibroblasts and generated a protein-protein association network of the TGFβ1 secretome using STRING. Functional enrichment revealed that several biological processes and pathways characteristic of PF were enriched. Additionally, by comparing the TGFβ1 secretome of NL fibroblasts to proteomic biomarkers from biological fluids of systemic sclerosis (SSc) patients, we identified 11 overlapping proteins. Together our data validate the TGFβ1-induced secretome of NL fibroblasts as a valid in vitro model that reflects SSc biomarkers and identify potential therapeutic targets for SSc-PF. SIGNIFICANCE: All proteins secreted by fibroblasts into the extracellular space, representing the secretome, promote cell-to-cell communication as well as tissue homeostasis, immune mechanisms, developmental regulation, proteolysis, development of the extracellular matrix (ECM) and cell adhesion. Therefore, it is crucial to understand how TGFβ1, a well-known profibrotic cytokine, modulates the secretome of pulmonary fibroblasts, and how the TGFβ1-induced secretome resembles biomarkers in SSc. Using functional enrichment analysis, key pathways and hub proteins can be identified and studied as potential therapeutic targets for pulmonary fibrosis.
Collapse
Affiliation(s)
- Ryan T Kendall
- Department of Medicine, Rheumatology & Immunology, MUSC, Charleston, SC, United States of America
| | - Ludivine Renaud
- Department of Medicine, Rheumatology & Immunology, MUSC, Charleston, SC, United States of America.
| | - John E Baatz
- Department of Pediatrics, MUSC, Charleston, SC, United States of America.
| | - Maya Malaab
- Department of Medicine, Rheumatology & Immunology, MUSC, Charleston, SC, United States of America.
| | - Xinh-Xinh Nguyen
- Department of Medicine, Rheumatology & Immunology, MUSC, Charleston, SC, United States of America.
| | - Carol A Feghali-Bostwick
- Department of Medicine, Rheumatology & Immunology, MUSC, Charleston, SC, United States of America.
| |
Collapse
|
7
|
Bagher M, Rosmark O, Elowsson Rendin L, Nybom A, Wasserstrom S, Müller C, Zhou XH, Dellgren G, Hallgren O, Bjermer L, Larsson-Callerfelt AK, Westergren-Thorsson G. Crosstalk between Mast Cells and Lung Fibroblasts Is Modified by Alveolar Extracellular Matrix and Influences Epithelial Migration. Int J Mol Sci 2021; 22:ijms22020506. [PMID: 33419174 PMCID: PMC7825515 DOI: 10.3390/ijms22020506] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 02/06/2023] Open
Abstract
Mast cells play an important role in asthma, however, the interactions between mast cells, fibroblasts and epithelial cells in idiopathic pulmonary fibrosis (IPF) are less known. The objectives were to investigate the effect of mast cells on fibroblast activity and migration of epithelial cells. Lung fibroblasts from IPF patients and healthy individuals were co-cultured with LAD2 mast cells or stimulated with the proteases tryptase and chymase. Human lung fibroblasts and mast cells were cultured on cell culture plastic plates or decellularized human lung tissue (scaffolds) to create a more physiological milieu by providing an alveolar extracellular matrix. Released mediators were analyzed and evaluated for effects on epithelial cell migration. Tryptase increased vascular endothelial growth factor (VEGF) release from fibroblasts, whereas co-culture with mast cells increased IL-6 and hepatocyte growth factor (HGF). Culture in scaffolds increased the release of VEGF compared to culture on plastic. Migration of epithelial cells was reduced by IL-6, while HGF and conditioned media from scaffold cultures promoted migration. In conclusion, mast cells and tryptase increased fibroblast release of mediators that influenced epithelial migration. These data indicate a role of mast cells and tryptase in the interplay between fibroblasts, epithelial cells and the alveolar extracellular matrix in health and lung disease.
Collapse
Affiliation(s)
- Mariam Bagher
- Unit of Lung Biology, Department of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden; (M.B.); (O.R.); (L.E.R.); (A.N.); (C.M.); (G.W.-T.)
- Department of Respiratory Medicine and Allergology, Skåne University Hospital, Lund University, 221 85 Lund, Sweden; (O.H.); (L.B.)
| | - Oskar Rosmark
- Unit of Lung Biology, Department of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden; (M.B.); (O.R.); (L.E.R.); (A.N.); (C.M.); (G.W.-T.)
| | - Linda Elowsson Rendin
- Unit of Lung Biology, Department of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden; (M.B.); (O.R.); (L.E.R.); (A.N.); (C.M.); (G.W.-T.)
| | - Annika Nybom
- Unit of Lung Biology, Department of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden; (M.B.); (O.R.); (L.E.R.); (A.N.); (C.M.); (G.W.-T.)
| | | | - Catharina Müller
- Unit of Lung Biology, Department of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden; (M.B.); (O.R.); (L.E.R.); (A.N.); (C.M.); (G.W.-T.)
| | - Xiao-Hong Zhou
- Bioscience Department, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, 431 53 Mölndal, Sweden;
| | - Göran Dellgren
- Department of Cardiothoracic Surgery and Transplant Institute, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden;
| | - Oskar Hallgren
- Department of Respiratory Medicine and Allergology, Skåne University Hospital, Lund University, 221 85 Lund, Sweden; (O.H.); (L.B.)
| | - Leif Bjermer
- Department of Respiratory Medicine and Allergology, Skåne University Hospital, Lund University, 221 85 Lund, Sweden; (O.H.); (L.B.)
| | - Anna-Karin Larsson-Callerfelt
- Unit of Lung Biology, Department of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden; (M.B.); (O.R.); (L.E.R.); (A.N.); (C.M.); (G.W.-T.)
- Correspondence: ; Tel.: +46-46-222-8580 or +46-733-525420
| | - Gunilla Westergren-Thorsson
- Unit of Lung Biology, Department of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden; (M.B.); (O.R.); (L.E.R.); (A.N.); (C.M.); (G.W.-T.)
| |
Collapse
|
8
|
D'Urso M, Kurniawan NA. Mechanical and Physical Regulation of Fibroblast-Myofibroblast Transition: From Cellular Mechanoresponse to Tissue Pathology. Front Bioeng Biotechnol 2020; 8:609653. [PMID: 33425874 PMCID: PMC7793682 DOI: 10.3389/fbioe.2020.609653] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/30/2020] [Indexed: 02/06/2023] Open
Abstract
Fibroblasts are cells present throughout the human body that are primarily responsible for the production and maintenance of the extracellular matrix (ECM) within the tissues. They have the capability to modify the mechanical properties of the ECM within the tissue and transition into myofibroblasts, a cell type that is associated with the development of fibrotic tissue through an acute increase of cell density and protein deposition. This transition from fibroblast to myofibroblast-a well-known cellular hallmark of the pathological state of tissues-and the environmental stimuli that can induce this transition have received a lot of attention, for example in the contexts of asthma and cardiac fibrosis. Recent efforts in understanding how cells sense their physical environment at the micro- and nano-scales have ushered in a new appreciation that the substrates on which the cells adhere provide not only passive influence, but also active stimulus that can affect fibroblast activation. These studies suggest that mechanical interactions at the cell-substrate interface play a key role in regulating this phenotype transition by changing the mechanical and morphological properties of the cells. Here, we briefly summarize the reported chemical and physical cues regulating fibroblast phenotype. We then argue that a better understanding of how cells mechanically interact with the substrate (mechanosensing) and how this influences cell behaviors (mechanotransduction) using well-defined platforms that decouple the physical stimuli from the chemical ones can provide a powerful tool to control the balance between physiological tissue regeneration and pathological fibrotic response.
Collapse
Affiliation(s)
- Mirko D'Urso
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Nicholas A. Kurniawan
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| |
Collapse
|
9
|
Herro R, Miki H, Sethi GS, Mills D, Mehta AK, Nguyen XX, Feghali-Bostwick C, Miller M, Broide DH, Soloff R, Croft M. TL1A Promotes Lung Tissue Fibrosis and Airway Remodeling. THE JOURNAL OF IMMUNOLOGY 2020; 205:2414-2422. [PMID: 32958689 DOI: 10.4049/jimmunol.2000665] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/30/2020] [Indexed: 12/23/2022]
Abstract
Lung fibrosis and tissue remodeling are features of chronic diseases such as severe asthma, idiopathic pulmonary fibrosis, and systemic sclerosis. However, fibrosis-targeted therapies are currently limited. We demonstrate in mouse models of allergen- and bleomycin-driven airway inflammation that neutralization of the TNF family cytokine TL1A through Ab blocking or genetic deletion of its receptor DR3 restricted increases in peribronchial smooth muscle mass and accumulation of lung collagen, primary features of remodeling. TL1A was found as a soluble molecule in the airways and expressed on the surface of alveolar macrophages, dendritic cells, innate lymphoid type 2 cells, and subpopulations of lung structural cells. DR3 was found on CD4 T cells, innate lymphoid type 2 cells, macrophages, fibroblasts, and some epithelial cells. Suggesting in part a direct activity on lung structural cells, administration of recombinant TL1A into the naive mouse airways drove remodeling in the absence of other inflammatory stimuli, innate lymphoid cells, and adaptive immunity. Correspondingly, human lung fibroblasts and bronchial epithelial cells were found to express DR3 and responded to TL1A by proliferating and/or producing fibrotic molecules such as collagen and periostin. Reagents that disrupt the interaction of TL1A with DR3 then have the potential to prevent deregulated tissue cell activity in lung diseases that involve fibrosis and remodeling.
Collapse
Affiliation(s)
- Rana Herro
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037
| | - Haruka Miki
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037
| | - Gurupreet S Sethi
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037
| | - David Mills
- Kyowa Kirin Pharmaceutical Research, Inc., La Jolla, CA 92037
| | - Amit Kumar Mehta
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037
| | - Xinh-Xinh Nguyen
- Division of Rheumatology and Immunology, Medical University of South Carolina, Charleston, SC 29425; and
| | - Carol Feghali-Bostwick
- Division of Rheumatology and Immunology, Medical University of South Carolina, Charleston, SC 29425; and
| | - Marina Miller
- Department of Medicine, University of California San Diego, La Jolla, CA 92037
| | - David H Broide
- Department of Medicine, University of California San Diego, La Jolla, CA 92037
| | - Rachel Soloff
- Kyowa Kirin Pharmaceutical Research, Inc., La Jolla, CA 92037
| | - Michael Croft
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037; .,Department of Medicine, University of California San Diego, La Jolla, CA 92037
| |
Collapse
|
10
|
Michalik M, Wójcik-Pszczoła K, Paw M, Wnuk D, Koczurkiewicz P, Sanak M, Pękala E, Madeja Z. Fibroblast-to-myofibroblast transition in bronchial asthma. Cell Mol Life Sci 2018; 75:3943-3961. [PMID: 30101406 PMCID: PMC6182337 DOI: 10.1007/s00018-018-2899-4] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 07/26/2018] [Accepted: 08/06/2018] [Indexed: 12/11/2022]
Abstract
Bronchial asthma is a chronic inflammatory disease in which bronchial wall remodelling plays a significant role. This phenomenon is related to enhanced proliferation of airway smooth muscle cells, elevated extracellular matrix protein secretion and an increased number of myofibroblasts. Phenotypic fibroblast-to-myofibroblast transition represents one of the primary mechanisms by which myofibroblasts arise in fibrotic lung tissue. Fibroblast-to-myofibroblast transition requires a combination of several types of factors, the most important of which are divided into humoural and mechanical factors, as well as certain extracellular matrix proteins. Despite intensive research on the nature of this process, its underlying mechanisms during bronchial airway wall remodelling in asthma are not yet fully clarified. This review focuses on what is known about the nature of fibroblast-to-myofibroblast transition in asthma. We aim to consider possible mechanisms and conditions that may play an important role in fibroblast-to-myofibroblast transition but have not yet been discussed in this context. Recent studies have shown that some inherent and previously undescribed features of fibroblasts can also play a significant role in fibroblast-to-myofibroblast transition. Differences observed between asthmatic and non-asthmatic bronchial fibroblasts (e.g., response to transforming growth factor β, cell shape, elasticity, and protein expression profile) may have a crucial influence on this phenomenon. An accurate understanding and recognition of all factors affecting fibroblast-to-myofibroblast transition might provide an opportunity to discover efficient methods of counteracting this phenomenon.
Collapse
Affiliation(s)
- Marta Michalik
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
| | - Katarzyna Wójcik-Pszczoła
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland.
| | - Milena Paw
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland
| | - Dawid Wnuk
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland
| | - Paulina Koczurkiewicz
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Marek Sanak
- Division of Molecular Biology and Clinical Genetics, Department of Medicine, Jagiellonian University Medical College, Skawińska 8, 31-066, Kraków, Poland
| | - Elżbieta Pękala
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Zbigniew Madeja
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland
| |
Collapse
|
11
|
da Silva Antunes R, Mehta AK, Madge L, Tocker J, Croft M. TNFSF14 (LIGHT) Exhibits Inflammatory Activities in Lung Fibroblasts Complementary to IL-13 and TGF-β. Front Immunol 2018; 9:576. [PMID: 29616048 PMCID: PMC5868327 DOI: 10.3389/fimmu.2018.00576] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 03/07/2018] [Indexed: 12/21/2022] Open
Abstract
The cytokine TNFSF14 [homologous to Lymphotoxin, exhibits Inducible expression and competes with HSV Glycoprotein D for binding to HVEM, a receptor expressed on T lymphocytes (LIGHT)] has been shown in mouse models to be important for development of lung tissue remodeling that is characteristic of asthma, idiopathic pulmonary fibrosis (IPF), and systemic sclerosis (SSc). However, its cellular targets are not fully delineated. In the present report, we show that LTβR and HVEM, the receptors for LIGHT, are constitutively expressed in primary human lung fibroblasts (HLFs). We asked whether LIGHT could promote inflammatory and remodeling-relevant activity in HLFs and how this was similar to, or distinct from, IL-13 or TGF-β, two cytokines strongly implicated in the pathogenesis of asthma, IPF, and SSc. Accumulation of myofibroblasts expressing alpha smooth muscle actin is a feature of lung inflammatory diseases. LIGHT promoted cell cycle progression and proliferation of HLFs, but not alpha smooth muscle actin expression. In contrast, TGF-β upregulated alpha smooth muscle actin but did not drive their proliferation. LIGHT also increased the gene or protein expression of a number of proinflammatory mediators, including ICAM-1 and VCAM-1, IL-6 and GM-CSF, the chemokines CCL5 and 20, and CXCL5, 11, and 12, and lung remodeling-associated proteinases MMP-9 and ADAM8. These were dependent on LTβR but not HVEM. LIGHT displayed overlapping and synergistic activities with IL-13 for a number of the activities, but LIGHT additionally enhanced the gene expression of several molecules, including the innate cytokines IL-33 and TSLP, which were not upregulated by IL-13. Our results highlight the varied and pleiotropic effects of LIGHT in HLFs. LIGHT might then be a therapeutic target for modulation of inflammation and remodeling associated with asthma and other similar diseases of the lung that involve fibroblasts.
Collapse
Affiliation(s)
- Ricardo da Silva Antunes
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, United States
| | - Amit K Mehta
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, United States
| | - Lisa Madge
- Janssen Research and Development, LLC, Immunology Discovery Research, Spring House, PA, United States
| | - Joel Tocker
- Janssen Research and Development, LLC, Immunology Discovery Research, Spring House, PA, United States
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, United States.,Department of Medicine, University of California San Diego, La Jolla, CA, United States
| |
Collapse
|
12
|
Burgess JK, Mauad T, Tjin G, Karlsson JC, Westergren-Thorsson G. The extracellular matrix - the under-recognized element in lung disease? J Pathol 2016; 240:397-409. [PMID: 27623753 PMCID: PMC5129494 DOI: 10.1002/path.4808] [Citation(s) in RCA: 167] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 08/17/2016] [Accepted: 09/05/2016] [Indexed: 12/11/2022]
Abstract
The lung is composed of airways and lung parenchyma, and the extracellular matrix (ECM) contains the main building blocks of both components. The ECM provides physical support and stability to the lung, and as such it has in the past been regarded as an inert structure. More recent research has provided novel insights revealing that the ECM is also a bioactive environment that orchestrates the cellular responses in its environs. Changes in the ECM in the airway or parenchymal tissues are now recognized in the pathological profiles of many respiratory diseases, including asthma, chronic obstructive pulmonary disease (COPD), and idiopathic pulmonary fibrosis (IPF). Only recently have we begun to investigate whether these ECM changes result from the disease process, or whether they constitute a driving factor that orchestrates the pathological outcomes. This review summarizes our current knowledge of the alterations in the ECM in asthma, COPD, and IPF, and the contributions of these alterations to the pathologies. Emerging data suggest that alterations in the composition, folding or rigidity of ECM proteins may alter the functional responses of cells within their environs, and in so doing change the pathological outcomes. These characteristics highlight potential avenues for targeting lung pathologies in the future. This may ultimately contribute to a better understanding of chronic lung diseases, and novel approaches for finding therapeutic solutions. © 2016 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
Collapse
Affiliation(s)
- Janette K Burgess
- University of Groningen, University Medical Centre Groningen, GRIAC Research Institute, Department of Pathology and Medical Biology, Groningen, The Netherlands.,Respiratory Cellular and Molecular Biology Group, Woolcock Institute of Medical Research, The University of Sydney, Glebe, NSW, Australia.,Discipline of Pharmacology, The University of Sydney, NSW, Australia.,Central Clinical School, The University of Sydney, NSW, Australia
| | - Thais Mauad
- Department of Pathology, São Paulo University Medical School, São Paulo, Brazil
| | - Gavin Tjin
- Respiratory Cellular and Molecular Biology Group, Woolcock Institute of Medical Research, The University of Sydney, Glebe, NSW, Australia.,Central Clinical School, The University of Sydney, NSW, Australia
| | - Jenny C Karlsson
- Lung Biology, Department of Experimental Medical Sciences, Medical Faculty, Lund University, Lund, Sweden
| | | |
Collapse
|
13
|
Kalashnikova I, Albekairi N, Ali S, Al Enazy S, Rytting E. Cell Culture Models for Drug Transport Studies. Drug Deliv 2016. [DOI: 10.1002/9781118833322.ch7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
14
|
Pirzad Jahromi G, Ghanei M, Hosseini SK, Shamsaei A, Gholipourmalekabadi M, Koochaki A, Karkuki Osguei N, Samadikuchaksaraei A. Characterization of Lung Fibroblasts More than Two Decades after Mustard Gas Exposure. PLoS One 2015; 10:e0145148. [PMID: 26679937 PMCID: PMC4683060 DOI: 10.1371/journal.pone.0145148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 12/01/2015] [Indexed: 11/18/2022] Open
Abstract
Purpose In patients with short-term exposure to the sulfur mustard gas, the delayed cellular effects on lungs have not been well understood yet. The lung pathology shows a dominant feature consistent with obliterative bronchiolitis, in which fibroblasts play a central role. This study aims to characterize alterations to lung fibroblasts, at the cellular level, in patients with delayed respiratory complications after short-term exposure to the sulfur mustard gas. Methods Fibroblasts were isolated from the transbronchial biopsies of patients with documented history of exposure to single high-dose sulfur mustard during 1985–7 and compared with the fibroblasts of control subjects. Results Compared with controls, patients’ fibroblasts were thinner and shorter, and showed a higher population doubling level, migration capacity and number of filopodia. Sulfur mustard decreased the in vitro viability of fibroblasts and increased their sensitivity to induction of apoptosis, but did not change the rate of spontaneous apoptosis. In addition, higher expression of alpha smooth muscle actin showed that the lung's microenvironment in these patients is permissive for myofibroblastic differentiation. Conclusions These findings suggest that in patients under the study, the delayed pulmonary complications of sulfur mustard should be considered as a unique pathology, which might need a specific management by manipulation of cellular components.
Collapse
Affiliation(s)
- Gila Pirzad Jahromi
- Neuroscience Research Centre, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mostafa Ghanei
- Chemical Injury Research Centre, Baqiyatallah University of Medical Sciences, Tehran, Iran
- Department of Respiratory Medicine, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Seyed Kazem Hosseini
- Tissue Bank & Preparation Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shamsaei
- Department of Pathology, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mazaher Gholipourmalekabadi
- Biotechnology Department, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ameneh Koochaki
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Ali Samadikuchaksaraei
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
- * E-mail:
| |
Collapse
|
15
|
Uh ST, Koo SM, Jang AS, Park SW, Choi JS, Kim YH, Park CS. Proteomic differences with and without ozone-exposure in a smoking-induced emphysema lung model. Korean J Intern Med 2015; 30:62-72. [PMID: 25589837 PMCID: PMC4293566 DOI: 10.3904/kjim.2015.30.1.62] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/25/2014] [Accepted: 09/25/2014] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND/AIMS Acute exacerbations in chronic obstructive pulmonary disease may be related to air pollution, of which ozone is an important constituent. In this study, we investigated the protein profiles associated with ozone-induced exacerbations in a smoking-induced emphysema model. METHODS Mice were divided into the following groups: group I, no smoking and no ozone (NS + NO); group II, no smoking and ozone (NS + O); group III, smoking and no ozone (S + NO); and group IV, smoking and ozone (S + O). Bronchoalveolar lavage, the mean linear intercept (MLI) on hematoxylin and eosin staining, nano-liquid chromatography-tandem mass spectrometry (LC-MS/MS), and Western blotting analyses were performed. RESULTS The MLIs of groups III (S + NO) and IV (S + O) (45 ± 2 and 44 ± 3 µm, respectively) were significantly higher than those of groups I (NS + NO) and II (NS + O) (26 ± 2 and 23 ± 2 µm, respectively; p < 0.05). Fourteen spots that showed significantly different intensities on image analyses of two-dimensional (2D) protein electrophoresis in group I (NS + NO) were identified by LC-MS/MS. The levels of six proteins were higher in group IV (S + O). The levels of vimentin, lactate dehydrogenase A, and triose phosphate isomerase were decreased by both smoking and ozone treatment in Western blotting and proteomic analyses. In contrast, TBC1 domain family 5 (TBC1D5) and lamin A were increased by both smoking and ozone treatment. CONCLUSIONS TBC1D5 could be a biomarker of ozone-induced lung injury in emphysema.
Collapse
Affiliation(s)
- Soo-Taek Uh
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - So-My Koo
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - An Soo Jang
- Genome Research Center for Allergy and Respiratory Disease, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Sung Woo Park
- Genome Research Center for Allergy and Respiratory Disease, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jae Sung Choi
- Division of Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Yong-Hoon Kim
- Division of Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Choon Sik Park
- Genome Research Center for Allergy and Respiratory Disease, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| |
Collapse
|
16
|
Haenen S, Clynen E, Nemery B, Hoet PH, Vanoirbeek JA. Biomarker discovery in asthma and COPD: Application of proteomics techniques in human and mice. EUPA OPEN PROTEOMICS 2014. [DOI: 10.1016/j.euprot.2014.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
17
|
Bălănescu P, Lădaru A, Bălănescu E, Băicuş C, Dan GA. Systemic sclerosis biomarkers discovered using mass-spectrometry-based proteomics: a systematic review. Biomarkers 2014; 19:345-55. [PMID: 24831309 DOI: 10.3109/1354750x.2014.920046] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Systemic sclerosis (SSc) is an autoimmune disease with incompletely known physiopathology. There is a great challenge to predict its course and therapeutic response using biomarkers. OBJECTIVE To critically review proteomic biomarkers discovered from biological specimens from systemic sclerosis patients using mass spectrometry technologies. METHODS Medline and Embase databases were searched in February 2014. RESULTS Out of the 199 records retrieved, a total of 20 records were included, identifying 116 candidate proteomic biomarkers. CONCLUSION Research in SSc proteomic biomarkers should focus on biomarker validation, as there are valuable mass-spectrometry proteomics studies in the literature.
Collapse
Affiliation(s)
- Paul Bălănescu
- Clinical Immunology Department, Colentina Clinical Hospital , Bucharest , Romania
| | | | | | | | | |
Collapse
|
18
|
Govender P, Baugh JA, Pennington SR, Dunn MJ, Donnelly SC. Role of proteomics in the investigation of pulmonary fibrosis. Expert Rev Proteomics 2014; 4:379-88. [PMID: 17552922 DOI: 10.1586/14789450.4.3.379] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Pulmonary fibrosis arises as a consequence of aberrant remodeling and defective repair mechanisms within the lung. This destructive process is the cause of much of the morbidity and mortality in many pulmonary disorders. Unfortunately, therapeutic options are limited. A significant advancement in the management of patients with pulmonary fibrosis would be the identification of biomarkers for diagnosis, prognosis and prediction of patient response to therapy. Bronchoalveolar lavage is an ideal tissue target for the discovery of these potential biomarkers in pulmonary fibrosis. Integrative approaches using both gel- and mass spectrometry-based proteomic workflows will allow full coverage of this complex proteome, thereby unlocking this potential information as a clinical tool to aid diagnosis and guide treatment for individual patients with pulmonary fibrosis.
Collapse
Affiliation(s)
- Praveen Govender
- University College Dublin, School of Medicine & Medical Science, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | | | | | | | | |
Collapse
|
19
|
Lehtonen ST, Karvonen HM, Harju T, Sormunen R, Lappi-Blanco E, Hilli M, Risteli J, Merikallio H, Kaarteenaho R. Stromal cells can be cultured and characterized from diagnostic bronchoalveolar fluid samples obtained from patients with various types of interstitial lung diseases. APMIS 2013; 122:301-16. [DOI: 10.1111/apm.12146] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Siri T Lehtonen
- Institute of Biomedicine; Department of Anatomy and Cell Biology; University of Oulu; Oulu Finland
- Respiratory Research Unit and Clinical Research Center; Oulu University Hospital and Medical Research Center Oulu; Oulu Finland
| | - Henna M Karvonen
- Respiratory Research Unit and Clinical Research Center; Oulu University Hospital and Medical Research Center Oulu; Oulu Finland
- Institute of Clinical Medicine; Department of Internal Medicine; Respiratory Research Unit; University of Oulu; Oulu Finland
| | - Terttu Harju
- Respiratory Research Unit and Clinical Research Center; Oulu University Hospital and Medical Research Center Oulu; Oulu Finland
- Institute of Clinical Medicine; Department of Internal Medicine; Respiratory Research Unit; University of Oulu; Oulu Finland
| | - Raija Sormunen
- Department of Pathology; Oulu University Hospital; Oulu Finland
- Biocenter Oulu; University of Oulu; Oulu Finland
| | - Elisa Lappi-Blanco
- Department of Pathology; Oulu University Hospital; Oulu Finland
- Institute of Diagnostics; Department of Pathology; University of Oulu; Oulu Finland
| | - Meeri Hilli
- Respiratory Research Unit and Clinical Research Center; Oulu University Hospital and Medical Research Center Oulu; Oulu Finland
- Institute of Clinical Medicine; Department of Internal Medicine; Respiratory Research Unit; University of Oulu; Oulu Finland
| | - Juha Risteli
- Institute of Diagnostics; Department of Clinical Chemistry; University of Oulu and NordLab Oulu; Oulu University Hospital; Oulu Finland
| | - Heta Merikallio
- Respiratory Research Unit and Clinical Research Center; Oulu University Hospital and Medical Research Center Oulu; Oulu Finland
- Institute of Clinical Medicine; Department of Internal Medicine; Respiratory Research Unit; University of Oulu; Oulu Finland
| | - Riitta Kaarteenaho
- Respiratory Research Unit and Clinical Research Center; Oulu University Hospital and Medical Research Center Oulu; Oulu Finland
- Unit of Medicine and Clinical Research; Pulmonary Division; University of Eastern Finland; Kuopio Finland
- Center for Medicine and Clinical Research; Division of Respiratory Medicine; Kuopio University Hospital; Kuopio Finland
| |
Collapse
|
20
|
Extra domain-A fibronectin is necessary for the development of nasal remodeling in chronic allergen-induced rhinitis. Ann Allergy Asthma Immunol 2013; 110:322-7. [PMID: 23622001 DOI: 10.1016/j.anai.2013.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 02/06/2013] [Accepted: 03/06/2013] [Indexed: 11/22/2022]
Abstract
BACKGROUND Extra domain A-containing fibronectin (EDA-FN) is necessary for the development of allergen-induced lower airway fibrosis. The pathogenesis of fibrosis in allergic rhinitis has not been well studied. OBJECTIVES To determine whether EDA-fibronectin is necessary for the development of nasal remodeling in a murine model of chronic allergic rhinitis and in human allergic rhinitis. METHODS EDA(-/-) and wild-type (WT) C57Bl/6 mice were sensitized intraperitoneally and then challenged with inhaled ovalbumin (OVA) or saline for 2 and 5 weeks. Clinical signs of rhinitis and histological analysis of nasal tissue were evaluated. Immunohistological staining for EDA-FN was performed in human tissue of inferior nasal conchae from patients with allergic rhinitis and controls. RESULTS After 2 weeks of allergen exposure, only goblet cell hyperplasia and perivascular eosinophilia were observed. After 5 weeks, goblet cell number, thickening of the subepithelial layer, and extent and area of collagen deposition were increased in the nasal tissue of WT OVA (ovalbumin)-challenged mice as compared with saline controls (P < .0001, P < .0001, P = .018, and P = .03, respectively). Clinical signs of rhinitis were observed only in WT OVA-challenged mice. In the EDA(-/-) mice exposed to OVA, collagen deposition, collagen area, and subepithelial thickness showed no increase and were similar to saline control mice, whereas goblet cell hyperplasia was similar to WT OVA-challenged mice. EDA-FN expression was prominent in inferior conchae from patients with allergic rhinitis but was absent in control patients. CONCLUSION EDA-containing fibronectin is necessary for the development of nasal tissue fibrotic remodeling process in both murine and human allergic rhinitis.
Collapse
|
21
|
Blume C, Davies DE. In vitro and ex vivo models of human asthma. Eur J Pharm Biopharm 2013; 84:394-400. [PMID: 23313714 DOI: 10.1016/j.ejpb.2012.12.014] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 11/27/2012] [Accepted: 12/18/2012] [Indexed: 01/11/2023]
Abstract
Asthma is an inflammatory disorder of the conducting airways which undergo distinct structural and functional changes leading to non-specific bronchial hyperresponsiveness (BHR) and airflow obstruction that fluctuate over time. It is a complex disease involving multiple genetic and environmental influences whose multifactorial interactions can result in a range of asthma phenotypes. Since our understanding of these gene-gene and gene-environment interactions is very poor, this poses a major challenge to the logical development of 'models of asthma'. However, use of cells and tissues from asthmatic donors allows genetic and epigenetic influences to be evaluated and can go some way to reflect the complex interplay between genetic and environmental stimuli that occur in vivo. Current alternative approaches to in vivo animal models involve use of a plethora of systems ranging from very simple models using human cells (e.g. bronchial epithelial cells and fibroblasts) in mono- or co-culture, whole tissue explants (biopsies, muscle strips, bronchial rings) through to in vivo studies in human volunteers. Asthma research has been greatly facilitated by the introduction of fibreoptic bronchoscopy which is now a commonly used technique in the field of respiratory disease research, allowing collection of biopsy specimens, bronchial brushing samples, and bronchoalveolar lavage fluid enabling use of disease-derived cells and tissues in some of these models. Here, we will consider the merits and limitations of current models and discuss the potential of tissue engineering approaches through which we aim to advance our understanding of asthma and its treatment.
Collapse
Affiliation(s)
- Cornelia Blume
- Brooke Laboratory, Clinical and Experimental Sciences and the Southampton NIHR, Respiratory Biomedical Research Unit, University of Southampton, University Hospital Southampton, Southampton, United Kingdom.
| | | |
Collapse
|
22
|
Abstract
Three pools of exhaled breath condensate (EBC) from non-smokers plus healthy smokers (NS + HS, n = 45); chronic obstructive pulmonary disease (COPD) without emphysema (COPD, n = 15) and subjects with pulmonary emphysema associated with α1-antitrypsin deficiency (AATD, n = 23) were used for an exploratory proteomic study aimed at generating fingerprints of these groups that can be used in future pathophysiological and perhaps even clinical research. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was the platform applied for this hypothesis-free investigation. Analysis of pooled specimens resulted in the production of a “fingerprint” made of 44 proteins for NS/HS; 17 for COPD and 15 for the group of AATD subjects. Several inflammatory cytokines (IL-1α, IL-1β, IL-2; IL-12, α and β subunits, IL-15, interferon α and γ, tumor necrosis factor α); Type I and II cytokeratins; two SP-A isoforms; Calgranulin A and B and α1-antitrypsin were detected and validated through the use of surface enhanced laser-desorption ionization mass spectrometry (SELDI-MS) and/or by Western blot (WB) analysis. These results are the prelude of quantitative studies aimed at identifying which of these proteins hold promise as identifiers of differences that could distinguish healthy subjects from patients.
Collapse
|
23
|
Karvonen HM, Lehtonen ST, Sormunen RT, Harju TH, Lappi-Blanco E, Bloigu RS, Kaarteenaho RL. Myofibroblasts in interstitial lung diseases show diverse electron microscopic and invasive features. J Transl Med 2012; 92:1270-84. [PMID: 22710982 DOI: 10.1038/labinvest.2012.95] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The characteristic features of myofibroblasts in various lung disorders are poorly understood. We have evaluated the ultrastructure and invasive capacities of myofibroblasts cultured from small volumes of diagnostic bronchoalveolar lavage (BAL) fluid samples from patients with different types of lung diseases. Cells were cultured from samples of BAL fluid collected from 51 patients that had undergone bronchoscopy and BAL for diagnostic purposes. The cells were visualized by transmission electron microscopy and immunoelectron microscopy to achieve ultrastructural localization of alpha-smooth muscle actin (α-SMA) and fibronectin. The levels of α-SMA protein and mRNA and fibronectin mRNA were measured by western blot and quantitative real-time reverse transcriptase polymerase chain reaction. The invasive capacities of the cells were evaluated. The cultured cells were either fibroblasts or myofibroblasts. The structure of the fibronexus, and the amounts of intracellular actin, extracellular fibronectin and cell junctions of myofibroblasts varied in different diseases. In electron and immunoelectron microscopy, cells cultured from interstitial lung diseases (ILDs) expressed more actin filaments and α-SMA than normal lung. The invasive capacity of the cells obtained from patients with idiopathic pulmonary fibrosis was higher than that from patients with other type of ILDs. Cells expressing more actin filaments had a higher invasion capacity. It is concluded that electron and immunoelectron microscopic studies of myofibroblasts can reveal differential features in various diseases. An analysis of myofibroblasts cultured from diagnostic BAL fluid samples may represent a new kind of tool for diagnostics and research into lung diseases.
Collapse
Affiliation(s)
- Henna M Karvonen
- Department of Internal Medicine, Respiratory Research Unit, Oulu University Hospital and Institute of Clinical Medicine, University of Oulu, Oulu, Finland
| | | | | | | | | | | | | |
Collapse
|
24
|
Crestani B. Bronchoalveolar lavage brings mesenchymal stem cells to the light. Am J Respir Crit Care Med 2012; 185:7-8. [PMID: 22210785 DOI: 10.1164/rccm.201110-1920ed] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
25
|
O'Neil SE, Lundbäck B, Lötvall J. Proteomics in asthma and COPD phenotypes and endotypes for biomarker discovery and improved understanding of disease entities. J Proteomics 2011; 75:192-201. [PMID: 22037230 DOI: 10.1016/j.jprot.2011.10.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 10/10/2011] [Accepted: 10/12/2011] [Indexed: 11/17/2022]
Abstract
The application of proteomics to respiratory diseases, such as asthma and COPD, has been limited compared to other fields, like cancer. Both asthma and COPD are recognised to be multi-factorial and complex diseases, both consisting of clusters of multiple disease phenotypes. The complexity of these diseases combined with the inaccessibility and invasiveness of disease relevant samples have provided a hurdle to the progress of respiratory proteomics. Advances in proteomic instrumentation and methodology have led to the possibility to identify proteomes in much smaller quantities of biological material. This review focuses on the efforts in respiratory proteomics in relation to asthma and COPD, and the importance of identifying subgroups of disease entities to establish appropriate biomarkers, and to enhance the understanding of underlying mechanisms in each subgroup. Careful phenotype characterisation of patient subpopulations is required to make improvement in the field of heterogeneous diseases such as asthma and COPD, and the clusters of phenotypes are likely to encompass subgroups of disease with distinct molecular mechanisms; endotypes. The utilisation of modern advanced proteomics in endotypes of asthma and COPD will likely contribute to the increased understanding of disease mechanisms, establishment of biomarkers for these endotypes and improved patient care.
Collapse
Affiliation(s)
- Serena E O'Neil
- Krefting Research Centre, Department of Internal Medicine, University of Gothenburg, Sweden.
| | | | | |
Collapse
|
26
|
O'Neil SE, Sitkauskiene B, Babusyte A, Krisiukeniene A, Stravinskaite-Bieksiene K, Sakalauskas R, Sihlbom C, Ekerljung L, Carlsohn E, Lötvall J. Network analysis of quantitative proteomics on asthmatic bronchi: effects of inhaled glucocorticoid treatment. Respir Res 2011; 12:124. [PMID: 21939520 PMCID: PMC3206435 DOI: 10.1186/1465-9921-12-124] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Accepted: 09/22/2011] [Indexed: 11/10/2022] Open
Abstract
Background Proteomic studies of respiratory disorders have the potential to identify protein biomarkers for diagnosis and disease monitoring. Utilisation of sensitive quantitative proteomic methods creates opportunities to determine individual patient proteomes. The aim of the current study was to determine if quantitative proteomics of bronchial biopsies from asthmatics can distinguish relevant biological functions and whether inhaled glucocorticoid treatment affects these functions. Methods Endobronchial biopsies were taken from untreated asthmatic patients (n = 12) and healthy controls (n = 3). Asthmatic patients were randomised to double blind treatment with either placebo or budesonide (800 μg daily for 3 months) and new biopsies were obtained. Proteins extracted from the biopsies were digested and analysed using isobaric tags for relative and absolute quantitation combined with a nanoLC-LTQ Orbitrap mass spectrometer. Spectra obtained were used to identify and quantify proteins. Pathways analysis was performed using Ingenuity Pathway Analysis to identify significant biological pathways in asthma and determine how the expression of these pathways was changed by treatment. Results More than 1800 proteins were identified and quantified in the bronchial biopsies of subjects. The pathway analysis revealed acute phase response signalling, cell-to-cell signalling and tissue development associations with proteins expressed in asthmatics compared to controls. The functions and pathways associated with placebo and budesonide treatment showed distinct differences, including the decreased association with acute phase proteins as a result of budesonide treatment compared to placebo. Conclusions Proteomic analysis of bronchial biopsy material can be used to identify and quantify proteins using highly sensitive technologies, without the need for pooling of samples from several patients. Distinct pathophysiological features of asthma can be identified using this approach and the expression of these features is changed by inhaled glucocorticoid treatment. Quantitative proteomics may be applied to identify mechanisms of disease that may assist in the accurate and timely diagnosis of asthma. Trial registration ClinicalTrials.gov registration NCT01378039
Collapse
Affiliation(s)
- Serena E O'Neil
- Krefting Research Centre, Department of Internal Medicine, University of Gothenburg, Sweden.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Xu Y, Zhang M, Wang Y, Kadambi P, Dave V, Lu LJ, Whitsett JA. A systems approach to mapping transcriptional networks controlling surfactant homeostasis. BMC Genomics 2010; 11:451. [PMID: 20659319 PMCID: PMC3091648 DOI: 10.1186/1471-2164-11-451] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Accepted: 07/26/2010] [Indexed: 12/15/2022] Open
Abstract
Background Pulmonary surfactant is required for lung function at birth and throughout life. Lung lipid and surfactant homeostasis requires regulation among multi-tiered processes, coordinating the synthesis of surfactant proteins and lipids, their assembly, trafficking, and storage in type II cells of the lung. The mechanisms regulating these interrelated processes are largely unknown. Results We integrated mRNA microarray data with array independent knowledge using Gene Ontology (GO) similarity analysis, promoter motif searching, protein interaction and literature mining to elucidate genetic networks regulating lipid related biological processes in lung. A Transcription factor (TF) - target gene (TG) similarity matrix was generated by integrating data from different analytic methods. A scoring function was built to rank the likely TF-TG pairs. Using this strategy, we identified and verified critical components of a transcriptional network directing lipogenesis, lipid trafficking and surfactant homeostasis in the mouse lung. Conclusions Within the transcriptional network, SREBP, CEBPA, FOXA2, ETSF, GATA6 and IRF1 were identified as regulatory hubs displaying high connectivity. SREBP, FOXA2 and CEBPA together form a common core regulatory module that controls surfactant lipid homeostasis. The core module cooperates with other factors to regulate lipid metabolism and transport, cell growth and development, cell death and cell mediated immune response. Coordinated interactions of the TFs influence surfactant homeostasis and regulate lung function at birth.
Collapse
Affiliation(s)
- Yan Xu
- Division of Pulmonary Biology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | | | | | | | | | | | | |
Collapse
|
28
|
Abstract
Proteomics has the goal of defining the complete protein complement of biological systems, which can then be analyzed in a comparative fashion to generate informative data regarding protein expression and function. Proteomic analyses can also facilitate the discovery of biomarkers that can be used to diagnose and monitor disease severity, activity and therapeutic response, as well as to identify new targets for drug development. A major challenge for proteomics, however, has been detecting low-abundance proteins in complex biological fluids. This review summarizes how proteomic analyses have advanced lung cell biology and facilitated the identification of new mechanisms of disease pathogenesis in respiratory disorders, such as asthma, cystic fibrosis, lung cancer, acute lung injury and sarcoidosis. The impact of nanotechnology and microfluidics, as well as studies of post-translational modifications and protein-protein interactions (the interactome), are considered. Furthermore, the application of systems-biology approaches to organize and analyze data regarding the lung proteome, interactome, genome, transcriptome, metabolome, glycome and small RNAome (regulatory RNAs), should facilitate future conceptual advances regarding lung cell biology, disease pathogenesis, biomarker discovery and drug development.
Collapse
Affiliation(s)
- Stewart J Levine
- National Institutes of Health, Pulmonary-Critical Care Medicine Branch, NHLBI, Building 10, Room 6D03, MSC 1590, Bethesda, MD 0892-1590, USA.
| |
Collapse
|
29
|
Liu S, Kapoor M, Shi‐Wen X, Kennedy L, Denton CP, Glogauer M, Abraham DJ, Leask A. Role of Rac1 in a bleomycin‐induced scleroderma model using fibroblast‐specific Rac1‐knockout mice. ACTA ACUST UNITED AC 2008; 58:2189-95. [DOI: 10.1002/art.23595] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
30
|
Malmström E, Sennström M, Holmberg A, Frielingsdorf H, Eklund E, Malmström L, Tufvesson E, Gomez MF, Westergren-Thorsson G, Ekman-Ordeberg G, Malmström A. The importance of fibroblasts in remodelling of the human uterine cervix during pregnancy and parturition. Mol Hum Reprod 2007; 13:333-41. [PMID: 17337476 DOI: 10.1093/molehr/gal117] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
It is well established that fibroblasts play a crucial role in pathophysiological extracellular matrix remodelling. The aim of this project is to elucidate their role in normal physiological remodelling. Specifically, the remodelling of the human cervix during pregnancy, resulting in an enabled passage of the child, is used as the model system. Fibroblast cultures were established from cervices of non-pregnant women, women after 36 weeks of pregnancy and women directly after partus. The cells were immunostained and quantified by western blots for differentiation markers. The cultures were screened for cytokine and metalloproteinase production and characterized by global proteome analysis. The cell cultures established from partal donors differ significantly from those from non-pregnant donors, which is in accordance with in vivo findings. A decrease in alpha-smooth actin and prolyl-4-hydroxylase and an increase in interleukin (IL)-6, IL-8 and matrix metalloproteinases (MMP)-1 and MMP-3 were observed in cultures from partal donors. 2D-gel electrophoresis followed by mass spectrometry showed that the expression of 59 proteins was changed significantly in cultures of partal donors. The regulated proteins are involved in protein kinase C signalling, Ca2+ binding, cytoskeletal organization, angiogenesis and degradation. Our data suggest that remodelling of the human cervix is orchestrated by fibroblasts, which are activated or recruited by the inflammatory processes occurring during the ripening cascade.
Collapse
Affiliation(s)
- Erik Malmström
- Department of Experimental Medical Science, BMC, Lund University, Lund, Sweden
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Magi B, Bargagli E, Bini L, Rottoli P. Proteome analysis of bronchoalveolar lavage in lung diseases. Proteomics 2006; 6:6354-69. [PMID: 17133372 DOI: 10.1002/pmic.200600303] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The proteomic approach is complementary to genomics and enables protein composition to be investigated under various clinical conditions. Its application to the study of bronchoalveolar lavage (BAL) is extremely promising. BAL proteomic studies were initially based on two-dimensional electrophoretic separation of complex protein samples and subsequent identification of proteins by different methods. With the techniques available today it is possible to attain many different research objectives. BAL proteomics can contribute to the identification of proteins in alveolar spaces with possible insights into pathogenesis and clinical application for diagnosis, prognosis and therapy. Many proteins with different functions have already been identified in BAL. Some could be biomarkers that need to be individually confirmed by correlation with clinical parameters and validation by other methods on larger cohorts of patients. The standardization of BAL sample preparation and processing for proteomic studies is an important goal that would promote and facilitate clinical applications. Here, we review the principal literature on BAL proteomic analysis applied to the study of lung diseases.
Collapse
Affiliation(s)
- Barbara Magi
- Department of Molecular Biology, University of Siena, Siena, Italy.
| | | | | | | |
Collapse
|
32
|
Larsen K, Macleod D, Nihlberg K, Gürcan E, Bjermer L, Marko-Varga G, Westergren-Thorsson G. Specific haptoglobin expression in bronchoalveolar lavage during differentiation of circulating fibroblast progenitor cells in mild asthma. J Proteome Res 2006; 5:1479-83. [PMID: 16739999 DOI: 10.1021/pr050462h] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Haptoglobin is an acute-phase glycoprotein considered to be involved in tissue repair and is produced by fibroblasts and inflammatory cells. By using a gel-based proteomic approach, we show for the first time a possible role for haptoglobin in the differentiation of fibroblast progenitor cells, termed fibrocytes, in patients with mild asthma. Bronchoalveolar lavage fluid (BALF) was performed to sample circulating fibrocytes from patients with mild asthma and nonasthmatic control subjects. Fibrocytes from the airway lumen were characterized by triple staining of the markers CD34/CD45R0/alpha-smooth muscle actin, and subjected to confocal microscopy. The protein expression pattern was analyzed using two-dimensional electrophoresis (2-DE) and matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF). Elevated levels of haptoglobin expression in BALF was reported in a sub-group of patients with mild asthma (p < 0.05) when compared to the other subjects. In addition, this increase in haptoglobin was accompanied by differentiation of fibrocytes into fibroblast-like cells. When further analyzing the expression pattern of haptoglobin isoforms, a heterozygous expression was detected in the patients where fibrocyte differentiation could be observed. These data raise the possibility that an acute and specific inflammatory state facilitates the differentiation of fibroblast progenitor cells into activated fibroblasts. Furthermore, this study proposes a novel role for haptoglobin in airway remodeling in patients with asthma.
Collapse
Affiliation(s)
- Kristoffer Larsen
- Experimental Medical Science, Lund University, BMC C13, S-221 84 Lund, Sweden
| | | | | | | | | | | | | |
Collapse
|
33
|
Choe MM, Sporn PHS, Swartz MA. Extracellular matrix remodeling by dynamic strain in a three-dimensional tissue-engineered human airway wall model. Am J Respir Cell Mol Biol 2006; 35:306-13. [PMID: 16601241 PMCID: PMC2643283 DOI: 10.1165/rcmb.2005-0443oc] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Airway wall remodeling is a hallmark of asthma, characterized by subepithelial thickening and extracellular matrix (ECM) remodeling. Mechanical stress due to hyperresponsive smooth muscle cells may contribute to this remodeling, but its relevance in a three-dimensional environment (where the ECM plays an important role in modulating stresses felt by cells) is unclear. To characterize the effects of dynamic compression in ECM remodeling in a physiologically relevant three-dimensional environment, a tissue-engineered human airway wall model with differentiated bronchial epithelial cells atop a collagen gel containing lung fibroblasts was used. Lateral compressive strain of 10 or 30% at 1 or 60 cycles per hour was applied using a novel straining device. ECM remodeling was assessed by immunohistochemistry and zymography. Dynamic strain, particularly at the lower magnitude, induced airway wall remodeling, as indicated by increased deposition of types III and IV collagen and increased secretion of matrix metalloproteinase-2 and -9. These changes paralleled increased myofibroblast differentiation and were fibroblast-dependent. Furthermore, the spatial pattern of type III collagen deposition correlated with that of myofibroblasts; both were concentrated near the epithelium and decreased diffusely away from the surface, indicating some epithelial control of the remodeling response. Thus, in a physiologically relevant three-dimensional model of the bronchial wall, dynamic compressive strain induced tissue remodeling that mimics many features of remodeling seen in asthma, in the absence of inflammation and dependent on epithelial-fibroblast signaling.
Collapse
Affiliation(s)
- Melanie M Choe
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, USA
| | | | | |
Collapse
|