1
|
Oldham JM, Huang Y, Bose S, Ma SF, Kim JS, Schwab A, Ting C, Mou K, Lee CT, Adegunsoye A, Ghodrati S, Pugashetti JV, Nazemi N, Strek ME, Linderholm AL, Chen CH, Murray S, Zemans RL, Flaherty KR, Martinez FJ, Noth I. Proteomic Biomarkers of Survival in Idiopathic Pulmonary Fibrosis. Am J Respir Crit Care Med 2024; 209:1111-1120. [PMID: 37847691 PMCID: PMC11092951 DOI: 10.1164/rccm.202301-0117oc] [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: 01/18/2023] [Accepted: 10/16/2023] [Indexed: 10/19/2023] Open
Abstract
Rationale: Idiopathic pulmonary fibrosis (IPF) causes progressive lung scarring and high mortality. Reliable and accurate prognostic biomarkers are urgently needed. Objectives: To identify and validate circulating protein biomarkers of IPF survival. Methods: High-throughput proteomic data were generated using prospectively collected plasma samples from patients with IPF from the Pulmonary Fibrosis Foundation Patient Registry (discovery cohort) and the Universities of California, Davis; Chicago; and Virginia (validation cohort). Proteins associated with three-year transplant-free survival (TFS) were identified using multivariable Cox proportional hazards regression. Those associated with TFS after adjustment for false discovery in the discovery cohort were advanced for testing in the validation cohort, with proteins maintaining TFS association with consistent effect direction considered validated. After combining cohorts, functional analyses were performed, and machine learning was used to derive a proteomic signature of TFS. Measurements and Main Results: Of 2,921 proteins tested in the discovery cohort (n = 871), 231 were associated with differential TFS. Of these, 140 maintained TFS association with consistent effect direction in the validation cohort (n = 355). After cohorts were combined, the validated proteins with the strongest TFS association were latent-transforming growth factor β-binding protein 2 (hazard ratio [HR], 2.43; 95% confidence interval [CI] = 2.09-2.82), collagen α-1(XXIV) chain (HR, 2.21; 95% CI = 1.86-2.39), and keratin 19 (HR, 1.60; 95% CI = 1.47-1.74). In decision curve analysis, a proteomic signature of TFS outperformed a similarly derived clinical prediction model. Conclusions: In the largest proteomic investigation of IPF outcomes performed to date, we identified and validated 140 protein biomarkers of TFS. These results shed important light on potential drivers of IPF progression.
Collapse
Affiliation(s)
- Justin M. Oldham
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine
- Department of Epidemiology, and
| | - Yong Huang
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, Virginia
| | - Swaraj Bose
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Shwu-Fan Ma
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, Virginia
| | - John S. Kim
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, Virginia
| | - Alexandra Schwab
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, Virginia
| | - Christopher Ting
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine
| | - Kaniz Mou
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine
| | - Cathryn T. Lee
- Section of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, Illinois
| | - Ayodeji Adegunsoye
- Section of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, Illinois
| | - Sahand Ghodrati
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California, Davis, Davis, California
| | | | - Nazanin Nazemi
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine
| | - Mary E. Strek
- Section of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, Illinois
| | - Angela L. Linderholm
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California, Davis, Davis, California
| | - Ching-Hsien Chen
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California, Davis, Davis, California
| | - Susan Murray
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Rachel L. Zemans
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine
| | - Kevin R. Flaherty
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine
- Pulmonary Fibrosis Foundation, Chicago, Illinois; and
| | | | - Imre Noth
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, Virginia
| |
Collapse
|
2
|
Melocchi L, Cervi G, Sartori G, Gandolfi L, Jocollé G, Cavazza A, Rossi G. Up-regulation by overexpression of c-MET in fibroblastic foci of usual interstitial pneumonia. Pathologica 2023; 115:308-317. [PMID: 37812383 PMCID: PMC10767799 DOI: 10.32074/1591-951x-920] [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: 09/14/2023] [Accepted: 09/14/2023] [Indexed: 10/10/2023] Open
Abstract
Background Usual interstitial pneumonia (UIP) is the radiologic and histologic hallmark of idiopathic pulmonary fibrosis (IPF) and the commonest histologic pattern of other progressive fibrosing interstitial lung diseases (e.g., fibrotic hypersensitivity pneumonia). Analogous to lung cancer, activation of epithelial-to-mesenchymal transition (EMT) is one of the main molecular pathways recently identified by transcriptomic studies in IPF. Fibroblastic foci (FF) are considered the active/trigger component of UIP pattern. The proto-oncogene C-MET is a key gene among molecules promoting EMT against which several inhibitors are currently available or promising in ongoing studies on lung cancer. Methods Twenty surgical cases of diffuse fibrosing interstitial lung diseases (fILD) with UIP pattern and FF-rich (17 IPF and 3 patients with fibrotic hypersensitivity pneumonia, fHP) were retrospectively selected. FF were manually microdissected and analysed for c-MET gene alterations (FISH amplification and gene hot-spot mutations Sanger sequencing) and tested with a c-MET companion diagnostic antibody (clone SP44 metmab) by immunohistochemistry. Results FF are characterized by upregulation of c-MET as shown by overexpression of the protein in 80% of cases, while no gene amplification by FISH or mutations were detected. C-MET upregulation of FF was observed either in IPF and fHP, with a tropism for the epithelial cell component only. Conclusion Upregulation of c-MET in FF of ILD with UIP pattern further confirms the key role of the proto-oncogene c-MET in its pathogenesis, possibly representing an interesting and easily-detectable molecular target for selective therapy using specific inhibitors in future clinical trials, similar to lung cancer. It is reasonable to speculate that molecular alterations in FF can also be detected in FF by transbronchial cryobiopsy.
Collapse
Affiliation(s)
- Laura Melocchi
- Operative Unit of Pathology, Diagnostic Services Area, Fondazione Poliambulanza Hospital Institute, Brescia, Italy
| | - Giulia Cervi
- Respiratory Diseases Unit, Carlo Poma Hospital, Azienda Territoriale Socio Sanitaria (ATS) of Mantova, Mantova, Italy
| | - Giuliana Sartori
- Operative Unit of Pathologic Anatomy, Azienda USL-IRCCS Reggio Emilia, Reggio Emilia, Italy
| | - Laura Gandolfi
- Operative Unit of Pathology, Diagnostic Services Area, Fondazione Poliambulanza Hospital Institute, Brescia, Italy
| | - Genny Jocollé
- Operative Unit of Oncology, Azienda USL Valle d’Aosta, Aosta, Italy
| | - Alberto Cavazza
- Operative Unit of Pathologic Anatomy, Azienda USL-IRCCS Reggio Emilia, Reggio Emilia, Italy
| | - Giulio Rossi
- Operative Unit of Pathology, Diagnostic Services Area, Fondazione Poliambulanza Hospital Institute, Brescia, Italy
| |
Collapse
|
3
|
Qin W, Crestani B, Spek CA, Scicluna BP, van der Poll T, Duitman J. Alveolar epithelial TET2 is not involved in the development of bleomycin-induced pulmonary fibrosis. FASEB J 2021; 35:e21599. [PMID: 33913570 DOI: 10.1096/fj.202002686rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/26/2021] [Accepted: 03/31/2021] [Indexed: 11/11/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease of unknown etiology with minimal treatment options. Repetitive alveolar epithelial injury has been suggested as one of the causative mechanisms of this disease. Type 2 alveolar epithelial cells (AEC2) play a crucial role during fibrosis by functioning as stem cells able to repair epithelial damage. The DNA demethylase Tet methylcytosine dioxygenase 2 (TET2) regulates the stemness of multiple types of stem cells, but whether it also affects the stemness of AEC2 during fibrosis remains elusive. To study the role of TET2 in AEC2 during fibrosis, we first determined TET2 protein levels in the lungs of IPF patients and compared TET2 expression in AEC2 of IPF patients and controls using publicly available data sets. Subsequently, pulmonary fibrosis was induced by the intranasal administration of bleomycin to wild-type and AEC2-specific TET2 knockout mice to determine the role of TET2 in vivo. Fibrosis was assessed by hydroxyproline analysis and fibrotic gene expression. Additionally, macrophage recruitment and activation, and epithelial injury were analyzed. TET2 protein levels and gene expression were downregulated in IPF lungs and AEC2, respectively. Bleomycin inoculation induced a robust fibrotic response as indicated by increased hydroxyproline levels and increased expression of pro-fibrotic genes. Additionally, increased macrophage recruitment and both M1 and M2 activation were observed. None of these parameters were, however, affected by AEC2-specific TET2 deficiency. TET2 expression is reduced in IPF, but the absence of TET2 in AEC2 cells does not affect the development of bleomycin-induced pulmonary fibrosis.
Collapse
Affiliation(s)
- Wanhai Qin
- Center for Experimental and Molecular Medicine, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Bruno Crestani
- INSERM UMR1152, Medical School Xavier Bichat, Paris, France.,Département Hospitalo-universitaire FIRE (Fibrosis, Inflammation and Remodeling) and LabEx Inflamex, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - C Arnold Spek
- Center for Experimental and Molecular Medicine, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Brendon P Scicluna
- Center for Experimental and Molecular Medicine, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.,Department of Clinical Epidemiology, Biostatistics, and Bioinformatics, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Tom van der Poll
- Center for Experimental and Molecular Medicine, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.,Division of Infectious Diseases, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - JanWillem Duitman
- Center for Experimental and Molecular Medicine, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| |
Collapse
|
4
|
Xiang Y, Liang B, Jiang Y, Sun F, Zhao Y, Wu Q, Hu X, Liu Y, Huang Q, Liao W, Yao Z, Li S, Shi M. MET transcriptional regulator/serine peptidase inhibitor kunitz type 1 panel operating through HGF/c-MET axis as a prognostic signature in pan-cancer. Cancer Med 2021; 10:2442-2460. [PMID: 33751856 PMCID: PMC7982633 DOI: 10.1002/cam4.3834] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 01/24/2021] [Accepted: 02/10/2021] [Indexed: 12/17/2022] Open
Abstract
Dysregulations in transcription factors (TFs) and their genetic products play important roles in tumorigenesis, tumor progression and metastasis. However, prognostic value of the transcriptional regulatory networks in different cancers has not been investigated in depth. The purpose of our study was to identify and validate a potential predictive signature that combines TFs and their regulatory products in eight solid tumors. We used bioinformatics analysis to identify MET Transcriptional Regulator (MACC1) and Serine Peptidase Inhibitor Kunitz Type 1 (SPINT1) as candidate TFs with the respective downstream regulatory proteins for patient prognosis in pan‐cancer. Subsequent molecular analysis of clinical gastric cancer tissue samples further verified the negative correlation between MACC1 and SPINT1. Further, we showed that mechanistically, MACC1/SPINT1 mediated the pro‐HGF proteolysis and c‐Met phosphorylation in HGF/c‐MET signaling pathway. Kaplan‐Meier plots and receiver operating characteristics analysis revealed that the two‐gene signature combining MACC1 with SPINT1 was effective in predicting survival in all eight cancer cohorts tested. In conclusion, our study clarified the regulatory relationship between MACC1 and SPINT1 in the context of the HGF/c‐MET signaling pathway and determined MACC1/SPINT1 panel as a valuable signature for the prediction of prognosis in patients for multiple solid cancer types.
Collapse
Affiliation(s)
- Yi Xiang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Bishan Liang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yu Jiang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fei Sun
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yang Zhao
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qijing Wu
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xingbin Hu
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yajing Liu
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qiong Huang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wangjun Liao
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiqi Yao
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shaowei Li
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Min Shi
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
5
|
Liu LQ, Wang ZH, Yao HY. Hepatocyte growth factor can guide treatment of Mycoplasma pneumoniae pneumonia in children. Exp Ther Med 2020; 19:3432-3438. [PMID: 32266043 DOI: 10.3892/etm.2020.8596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 02/02/2020] [Indexed: 12/30/2022] Open
Abstract
The objective of the present study was to explore the role of hepatocyte growth factor (HGF) in directing treatment of Mycoplasma pneumoniae pneumonia (MP). Serum levels of HGF were assessed using ELISA in 65 pediatric patients with MP, 42 with bacterial pneumonia and 30 healthy controls. Serum levels of C-reactive protein (CRP), the standard guide for MP treatment, were also examined in severe and non-severe MP. The sensitivity and specificity of HGF and CRP in assessing the outcome of azithromycin treatment of MP were compared using receiver operating characteristic curves. HGF levels were elevated in MP and bacterial pneumonia patients compared with healthy controls. HGF levels were also significantly higher in severe MP than in non-severe MP. HGF showed higher sensitivity and specificity than CRP in assessing outcomes of azithromycin treatment of MP. The results of the present study indicated that HGF may be used to detect severe MP and to direct its management. Furthermore, HGF may be better predictive marker to assess the effectiveness of azithromycin treatment of MP than CRP.
Collapse
Affiliation(s)
- Lun Qin Liu
- Department of Inspection, Infectious Diseases Hospital of Jinan, Jinan, Shandong 250021, P.R. China
| | - Zhi Hua Wang
- Department of Pediatrics, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin 300100, P.R. China
| | - Hai Yun Yao
- Department of Inspection, Jinan Blood Center, Jinan, Shandong 250001, P.R. China
| |
Collapse
|
6
|
Lee JU, Son JH, Shim EY, Cheong HS, Shin SW, Shin HD, Baek AR, Ryu S, Park CS, Chang HS, Park JS. Global DNA Methylation Pattern of Fibroblasts in Idiopathic Pulmonary Fibrosis. DNA Cell Biol 2019; 38:905-914. [DOI: 10.1089/dna.2018.4557] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Jong-Uk Lee
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang University, Bucheon, Republic of Korea
| | - Ji-Hye Son
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang University, Bucheon, Republic of Korea
| | - Eun-Young Shim
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang University, Bucheon, Republic of Korea
| | - Hyun Sub Cheong
- Department of Genetic Epidemiology, SNP Genetics, Inc., Sogang University, Seoul, Republic of Korea
| | - Seung-Woo Shin
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang University, Bucheon, Republic of Korea
| | - Hyoung Doo Shin
- Department of Genetic Epidemiology, SNP Genetics, Inc., Sogang University, Seoul, Republic of Korea
- Department of Life Science, Sogang University, Seoul, Republic of Korea
| | - Ae Rin Baek
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Seongho Ryu
- Soonchunhyang Institute of Med-Bioscience (SIMS), Soonchunhyang University, Cheonan-Si, Republic of Korea
| | - Choon-Sik Park
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang University, Bucheon, Republic of Korea
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Hun Soo Chang
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang University, Bucheon, Republic of Korea
| | - Jong-Sook Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| |
Collapse
|
7
|
Hägglund S, Laloy E, Näslund K, Pfaff F, Eschbaumer M, Romey A, Relmy A, Rikberg A, Svensson A, Huet H, Gorna K, Zühlke D, Riedel K, Beer M, Zientara S, Bakkali-Kassimi L, Blaise-Boisseau S, Valarcher JF. Model of persistent foot-and-mouth disease virus infection in multilayered cells derived from bovine dorsal soft palate. Transbound Emerg Dis 2019; 67:133-148. [PMID: 31419374 PMCID: PMC7003861 DOI: 10.1111/tbed.13332] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 08/02/2019] [Accepted: 08/09/2019] [Indexed: 12/15/2022]
Abstract
Foot‐and‐mouth disease virus (FMDV) causes a highly contagious vesicular disease in livestock, with serious consequences for international trade. The virus persists in the nasopharynx of cattle and this slows down the process to obtain an FMDV‐free status after an outbreak. To study biological mechanisms, or to identify molecules that can be targeted to diagnose or interfere with persistence, we developed a model of persistent FMDV infection in bovine dorsal soft palate (DSP). Primary DSP cells were isolated after commercial slaughter and were cultured in multilayers at the air‐liquid interface. After 5 weeks of culture without further passage, the cells were infected with FMDV strain O/FRA/1/2001. Approximately, 20% of cells still had a polygonal morphology and displayed tight junctions as in stratified squamous epithelia. Subsets of cells expressed cytokeratin and most or all cells expressed vimentin. In contrast to monolayers in medium, multilayers in air demonstrated only a limited cytopathic effect. Integrin αVβ6 expression was observed in mono‐ but not in multilayers. FMDV antigen, FMDV RNA and live virus were detected from day 1 to 28, with peaks at day 1 and 2. The proportion of infected cells was highest at 24 hr (3% and 36% of cells at an MOI of 0.01 and 1, respectively). At day 28 after infection, at a time when animals that still harbour FMDV are considered carriers, FMDV antigen was detected in 0.2%–2.1% of cells, in all layers, and live virus was isolated from supernatants of 6/8 cultures. On the consensus level, the viral genome did not change within the first 24 hr after infection. Only a few minor single nucleotide variants were detected, giving no indication of the presence of a viral quasispecies. The air‐liquid interface model of DSP brings new possibilities to investigate FMDV persistence in a controlled manner.
Collapse
Affiliation(s)
- Sara Hägglund
- Host Pathogen Interaction Group, Section of Ruminant Medicine, Department of Clinical Science, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Eve Laloy
- Laboratoire de Santé Animale de Maisons-Alfort, UMR 1161 virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Katarina Näslund
- Host Pathogen Interaction Group, Section of Ruminant Medicine, Department of Clinical Science, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Florian Pfaff
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Michael Eschbaumer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Aurore Romey
- Laboratoire de Santé Animale de Maisons-Alfort, UMR 1161 virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Anthony Relmy
- Laboratoire de Santé Animale de Maisons-Alfort, UMR 1161 virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Annika Rikberg
- Host Pathogen Interaction Group, Section of Ruminant Medicine, Department of Clinical Science, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Anna Svensson
- Host Pathogen Interaction Group, Section of Ruminant Medicine, Department of Clinical Science, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Helene Huet
- Laboratoire de Santé Animale de Maisons-Alfort, UMR 1161 virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Kamila Gorna
- Laboratoire de Santé Animale de Maisons-Alfort, UMR 1161 virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Daniela Zühlke
- Institute of Microbiology, Department for Microbial Physiology and Molecular Biology, University of Greifswald, Greifswald, Germany
| | - Katharina Riedel
- Institute of Microbiology, Department for Microbial Physiology and Molecular Biology, University of Greifswald, Greifswald, Germany
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Stephan Zientara
- Laboratoire de Santé Animale de Maisons-Alfort, UMR 1161 virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Labib Bakkali-Kassimi
- Laboratoire de Santé Animale de Maisons-Alfort, UMR 1161 virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Sandra Blaise-Boisseau
- Laboratoire de Santé Animale de Maisons-Alfort, UMR 1161 virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Jean François Valarcher
- Host Pathogen Interaction Group, Section of Ruminant Medicine, Department of Clinical Science, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| |
Collapse
|
8
|
Yamashita Y, Kuroki R, Takaki M, Tanaka T, Senba M, Morimoto K, Amano H. Impairment of tissue repair in pneumonia due to β-cell deficiency: role of endoplasmic reticulum stress in alveolar macrophages. BMC Res Notes 2019; 12:160. [PMID: 30902065 PMCID: PMC6431046 DOI: 10.1186/s13104-019-4209-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 03/18/2019] [Indexed: 12/16/2022] Open
Abstract
Objective Diabetes mellitus (DM) patients are susceptible to delayed resolution of pneumonia. However, the pathogenesis of the impaired tissue repair in inflamed lungs in diabetic patients is unknown. We evaluated phagocytosis of apoptotic cells (efferocytosis), hepatocyte growth factor (HGF) production in bronchoalveolar lavage fluid (BALF), and lung histology in the resolution phase following acute lung injury in streptozotocin (STZ)-induced β-cell-depleted hyperglycemic mice. We also investigated efferocytosis and HGF production by macrophages under β-cell depletion condition ex vivo. Results In β-cell-depleted mice, efferocytosis was not significantly different from that in control mice; however, the concentration of HGF in BALF was decreased. In addition, diminished HGF production by alveolar macrophages and DNA synthesis in the alveolar epithelium was observed by immunohistochemistry. Ex vivo experiments confirmed that HGF production by macrophages was impaired under β-cell depletion probably because of endoplasmic reticulum stress. Electronic supplementary material The online version of this article (10.1186/s13104-019-4209-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yoshiro Yamashita
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Sakamoto 1-12-4, Nagasaki, Nagasaki, 852-8523, Japan
| | - Reiki Kuroki
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Sakamoto 1-12-4, Nagasaki, Nagasaki, 852-8523, Japan
| | - Masahiro Takaki
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Sakamoto 1-12-4, Nagasaki, Nagasaki, 852-8523, Japan
| | - Takeshi Tanaka
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Sakamoto 1-12-4, Nagasaki, Nagasaki, 852-8523, Japan
| | - Masachika Senba
- Department of Pathology, Institute of Tropical Medicine, Nagasaki University, Sakamoto 1-12-4, Nagasaki, Nagasaki, 852-8523, Japan
| | - Konosuke Morimoto
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Sakamoto 1-12-4, Nagasaki, Nagasaki, 852-8523, Japan.
| | - Hideaki Amano
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Sakamoto 1-12-4, Nagasaki, Nagasaki, 852-8523, Japan
| |
Collapse
|
9
|
Hepatocyte Growth Factor Activator: A Proteinase Linking Tissue Injury with Repair. Int J Mol Sci 2018; 19:ijms19113435. [PMID: 30388869 PMCID: PMC6275078 DOI: 10.3390/ijms19113435] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/22/2018] [Accepted: 10/30/2018] [Indexed: 01/16/2023] Open
Abstract
Hepatocyte growth factor (HGF) promotes pleiotropic signaling through its specific receptor tyrosine kinase, MET. As such, it has important roles in the regeneration of injured tissues. Since HGF is produced mainly by mesenchymal cells and MET is expressed in most epithelial, endothelial and somatic stem cells, HGF functions as a typical paracrine growth factor. HGF is secreted as an inactive precursor (proHGF) and requires proteolytic activation to initiate HGF-induced MET signaling. HGF activator (HGFAC) is a serum activator of proHGF and produces robust HGF activities in injured tissues. HGFAC is a coagulation factor XII-like serine endopeptidase that circulates in the plasma as a zymogen (proHGFAC). Thrombin, kallikrein-related peptidase (KLK)-4 or KLK-5 efficiently activates proHGFAC. The activated HGFAC cleaves proHGF at Arg494-Val495, resulting in the formation of the active disulfide-linked heterodimer HGF. Macrophage stimulating protein, a ligand of RON, is also activated by HGFAC in vivo. Although HGFAC functions primarily at the site of damaged tissue, a recent report has suggested that activated HGFAC relays a signal to stem cells in non-injured tissues via proHGF activation in the stem cell niche. This review focuses on current knowledge regarding HGFAC-mediated proHGF activation and its roles in tissue regeneration and repair.
Collapse
|
10
|
Abstract
Idiopathic Pulmonary Fibrosis (IPF) is a devastating chronic, progressive and irreversible disease that remains refractory to current therapies. Matrix metalloproteinases (MMPs) and their inhibitors, tissue inhibitors of MMPs (TIMPs), have been implicated in the development of pulmonary fibrosis since decades. Coagulation signalling deregulation, which influences several key inflammatory and fibro-proliferative responses, is also essential in IPF pathogenesis, and a growing body of evidence indicates that Protease-Activated Receptors (PARs) inhibition in IPF may be promising for future evaluation. Therefore, proteases and anti-proteases aroused great biomedical interest over the past years, owing to the identification of their potential roles in lung fibrosis. During these last decades, numerous other proteases and anti-proteases have been studied in lung fibrosis, such as matriptase, Human airway trypsin-like protease (HAT), Hepatocyte growth factor activator (HGFA)/HGFA activator inhibitor (HAI) system, Plasminogen activator inhibitor (PAI)-1, Protease nexine (PN)-1, cathepsins, calpains, and cystatin C. Herein, we provide a general overview of the proteases and anti-proteases unbalance during lung fibrogenesis and explore potential therapeutics for IPF.
Collapse
|
11
|
Menou A, Flajolet P, Duitman J, Justet A, Moog S, Jaillet M, Tabèze L, Solhonne B, Garnier M, Mal H, Mordant P, Castier Y, Cazes A, Sallenave J, A. Mailleux A, Crestani B. Human airway trypsin‐like protease exerts potent, antifibrotic action in pulmonary fibrosis. FASEB J 2018; 32:1250-1264. [DOI: 10.1096/fj.201700583r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Awen Menou
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
| | - Pauline Flajolet
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
| | - JanWillem Duitman
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
| | - Aurélien Justet
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
- Service de Pneumologie A Assistance Publique‐Hôpitaux de Paris (AP‐HP), Hôpital Bichat Paris France
| | - Sophie Moog
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
| | - Madeleine Jaillet
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
| | - Laure Tabèze
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
- Service de Pneumologie A Assistance Publique‐Hôpitaux de Paris (AP‐HP), Hôpital Bichat Paris France
| | - Brigitte Solhonne
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
| | - Marc Garnier
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
- Departement d'Anesthésie et Réanimation, (AP‐HP) Hôpital Tenon Paris France
| | - Hervé Mal
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
- Service de Pneumologie et Transplantation Assistance Publique‐Hôpitaux de Paris (AP‐HP), Hôpital Bichat Paris France
| | - Pierre Mordant
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
- Service de Chirurgie Thoracique et Vasculaire Assistance Publique‐Hôpitaux de Paris (AP‐HP), Hôpital Bichat Paris France
| | - Yves Castier
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
- Service de Chirurgie Thoracique et Vasculaire Assistance Publique‐Hôpitaux de Paris (AP‐HP), Hôpital Bichat Paris France
| | - Aurélie Cazes
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
- Departement d'Anatomie Pathologique Assistance Publique‐Hôpitaux de Paris (AP‐HP), Hôpital Bichat Paris France
| | - Jean‐Michel Sallenave
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
| | - Arnaud A. Mailleux
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
| | - Bruno Crestani
- INSERM, Unité 1552 Paris France
- Département Hospitalo‐Universitaire Fibrosis, Inflammation, and Remodeling in Renal and Respiratory Diseases (FIRE) Paris France
- Laboratoire d'Excellence Inflamex Paris France
- Université Paris Diderot, Sorbonne Paris Cité Paris France
- Service de Pneumologie A Assistance Publique‐Hôpitaux de Paris (AP‐HP), Hôpital Bichat Paris France
| |
Collapse
|
12
|
Johnson N, Březinová J, Stephens E, Burbridge E, Freeman M, Adrain C, Strisovsky K. Quantitative proteomics screen identifies a substrate repertoire of rhomboid protease RHBDL2 in human cells and implicates it in epithelial homeostasis. Sci Rep 2017; 7:7283. [PMID: 28779096 PMCID: PMC5544772 DOI: 10.1038/s41598-017-07556-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 06/21/2017] [Indexed: 01/01/2023] Open
Abstract
Rhomboids are intramembrane serine proteases conserved in all kingdoms of life. They regulate epidermal growth factor receptor signalling in Drosophila by releasing signalling ligands from their transmembrane tethers. Their functions in mammals are poorly understood, in part because of the lack of endogenous substrates identified thus far. We used a quantitative proteomics approach to investigate the substrate repertoire of rhomboid protease RHBDL2 in human cells. We reveal a range of novel substrates that are specifically cleaved by RHBDL2, including the interleukin-6 receptor (IL6R), cell surface protease inhibitor Spint-1, the collagen receptor tyrosine kinase DDR1, N-Cadherin, CLCP1/DCBLD2, KIRREL, BCAM and others. We further demonstrate that these substrates can be shed by endogenously expressed RHBDL2 and that a subset of them is resistant to shedding by cell surface metalloproteases. The expression profiles and identity of the substrates implicate RHBDL2 in physiological or pathological processes affecting epithelial homeostasis.
Collapse
Affiliation(s)
- Nicholas Johnson
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Science, Flemingovo n. 2, Prague, 166 10, Czech Republic
| | - Jana Březinová
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Science, Flemingovo n. 2, Prague, 166 10, Czech Republic.,Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Elaine Stephens
- MRC Laboratory of Molecular Biology, Cambridge, CB2 2QH, United Kingdom
| | | | - Matthew Freeman
- MRC Laboratory of Molecular Biology, Cambridge, CB2 2QH, United Kingdom.,Sir William Dunn School of Pathology, Oxford, OX1 3RE, United Kingdom
| | - Colin Adrain
- Instituto Gulbenkian de Ciência, Lisbon, Portugal.
| | - Kvido Strisovsky
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Science, Flemingovo n. 2, Prague, 166 10, Czech Republic.
| |
Collapse
|
13
|
Hepatocyte growth factor secreted by bone marrow stem cell reduce ER stress and improves repair in alveolar epithelial II cells. Sci Rep 2017; 7:41901. [PMID: 28157203 PMCID: PMC5291222 DOI: 10.1038/srep41901] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 01/03/2017] [Indexed: 01/04/2023] Open
Abstract
Idiopathic Pulmonary Fibrosis (IPF) is a progressive, irreversible lung disease with complex pathophysiology. Evidence of endoplasmic reticulum (ER) stress has been reported in alveolar epithelial cells (AEC) in IPF patients. Secreted mediators from bone marrow stem cells (BMSC-cm) have regenerative properties. In this study we investigate the beneficial effects of BMSC-cm on ER stress response in primary AEC and ER stressed A549 cells. We hypothesize that BMSC-cm reduces ER stress. Primary AEC isolated from IPF patients were treated with BMSC-cm. To induce ER stress A549 cells were incubated with Tunicamycin or Thapsigargin and treated with BMSC-cm, or control media. Primary IPF-AEC had high Grp78 and CHOP gene expression, which was lowered after BMSC-cm treatment. Similar results were observed in ER stressed A549 cells. Alveolar epithelial repair increased in presence of BMSC-cm in ER stressed A549 cells. Hepatocyte growth factor (HGF) was detected in biologically relevant levels in BMSC-cm. Neutralization of HGF in BMSC-cm attenuated the beneficial effects of BMSC-cm including synthesis of surfactant protein C (SP-C) in primary AEC, indicating a crucial role of HGF in ER homeostasis and alveolar epithelial repair. Our data suggest that BMSC-cm may be a potential therapeutic option for treating pulmonary fibrosis.
Collapse
|
14
|
Stidham RW, Wu J, Shi J, Lubman DM, Higgins PDR. Serum Glycoproteome Profiles for Distinguishing Intestinal Fibrosis from Inflammation in Crohn's Disease. PLoS One 2017; 12:e0170506. [PMID: 28114331 PMCID: PMC5256928 DOI: 10.1371/journal.pone.0170506] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 01/05/2017] [Indexed: 01/08/2023] Open
Abstract
Background Reliable identification and quantitation of intestinal fibrosis in the setting of co-existing inflammation due to Crohn’s disease (CD) is difficult. We aimed to identify serum biomarkers which distinguish inflammatory from fibrostenotic phenotypes of CD using serum glycoproteome profiles. Methods Subjects with fibrostenotic and inflammation-predominant CD phenotypes (n = 20 per group) underwent comparison by quantitative serum glycoproteome profiles as part of a single tertiary care center cohort study. Following lectin elution, glycoproteins underwent liquid chromatography followed by tandem mass spectrometry. Identified candidate biomarkers of fibrosis were also measured by serum ELISA, a widely available technique. Results Five (5) glycoproteins demonstrated a ≥20% relative abundance change in ≥80% of subjects, including cartilage oligomeric matrix protein (COMP) and hepatocyte growth factor activator (HGFA). COMP (431.7±112.7 vs. 348.7±90.5 ng/mL, p = 0.012) and HGFA (152.7±66.5 vs. 107.1±38.7 ng/mL, p = 0.031) serum levels were elevated in the fibrostenotic vs. inflammatory CD groups using ELISA. Within the fibrostenotic group, intra-individual changes of candidate biomarkers revealed HGFA levels significantly declined following the resection of all diseased intestine (152.7±66.5 vs. 107.1±38.7 ng/mL, p = 0.015); COMP levels were unchanged. Immunohistochemical staining confirmed the presence of COMP in the submucosa and muscularis of resected fibrostenotic tissue. Conclusions In this biomarker discovery study, several serum glycoproteins, specifically COMP and HGFA, differ between between predominately inflammatory and fibrostenotic CD phenotypes. The development of blood-based biomarkers of fibrosis would provide an important complement to existing prognostic tools in IBD, aiding decisions on therapeutic intensity and mechanism selection, surgery, and the monitoring of future anti-fibrotic therapies for CD.
Collapse
Affiliation(s)
- Ryan W. Stidham
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, United States of America
- * E-mail:
| | - Jing Wu
- Department of Surgery, University of Michigan Health System, Ann Arbor, MI, United States of America
| | - Jiaqi Shi
- Department of Pathology, University of Michigan Health System, Ann Arbor, MI, United States of America
| | - David M. Lubman
- Department of Surgery, University of Michigan Health System, Ann Arbor, MI, United States of America
| | - Peter D. R. Higgins
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, United States of America
| |
Collapse
|
15
|
Lee JU, Cheong HS, Shim EY, Bae DJ, Chang HS, Uh ST, Kim YH, Park JS, Lee B, Shin HD, Park CS. Gene profile of fibroblasts identify relation of CCL8 with idiopathic pulmonary fibrosis. Respir Res 2017; 18:3. [PMID: 28057004 PMCID: PMC5216573 DOI: 10.1186/s12931-016-0493-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 12/13/2016] [Indexed: 01/15/2023] Open
Abstract
Background Idiopathic pulmonary fibrosis (IPF) is characterized by the complex interaction of cells involved in chronic inflammation and fibrosis. Global gene expression of a homogenous cell population will identify novel candidate genes. Methods Gene expression of fibroblasts derived from lung tissues (8 IPF and 4 controls) was profiled, and ontology and functional pathway were analyzed in the genes exhibiting >2 absolute fold changes with p-values < 0.05. CCL8 mRNA and protein levels were quantified using real-time PCR and ELISA. CCL8 localization was evaluated by immunofluorescence staining. Results One hundred seventy eight genes differentially expressed and 15 genes exhibited >10-fold change. Among them, 13 were novel in relation with IPF. CCL8 expression was 22.8-fold higher in IPF fibroblasts. The levels of CCL8 mRNA and protein were 3 and 9-fold higher in 14 IPF fibroblasts than those in 10 control fibroblasts by real-time PCR and ELISA (p = 0.022 and p = 0.026, respectively). The CCL8 concentrations in BAL fluid was significantly higher in 86 patients with IPF than those in 41 controls, and other interstitial lung diseases including non-specific interstitial pneumonia (n = 22), hypersensitivity pneumonitis (n = 20) and sarcoidosis (n = 19) (p < 0.005, respectively). Cut-off values of 2.29 pg/mL and 0.43 pg/mL possessed 80.2 and 70.7% accuracy for the discrimination of IPF from NC and the other lung diseases, respectively. IPF subjects with CCL8 levels >28.61 pg/mL showed shorter survival compared to those with lower levels (p = 0.012). CCL8 was expressed by α-SMA-positive cells in the interstitium of IPF. Conclusions Transcriptome analysis identified several novel IPF-related genes. Among them, CCL8 is a candidate molecule for the differential diagnosis and prediction of survival. Electronic supplementary material The online version of this article (doi:10.1186/s12931-016-0493-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jong-Uk Lee
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang Graduate School, Bucheon, Korea
| | - Hyun Sub Cheong
- Department of Genetic Epidemiology, SNP Genetics, Inc., Sogang University, Seoul, Korea
| | - Eun-Young Shim
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang Graduate School, Bucheon, Korea
| | - Da-Jeong Bae
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang Graduate School, Bucheon, Korea
| | - Hun Soo Chang
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang Graduate School, Bucheon, Korea.,Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang, University Bucheon Hospital, Bucheon, Korea
| | - Soo-Taek Uh
- Division of Respiratory and Allergy Medicine, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, 1174, Jung Dong, Wonmi-Gu, Bucheon, Gyeonggi Do, 420-021, Korea
| | - Young Hoon Kim
- Division of Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University, Chunan Hospital, Cheonan, Korea
| | - Jong-Sook Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang, University Bucheon Hospital, Bucheon, Korea
| | - Bora Lee
- Department of Biostatistic Consulting, Soon Chun Hyang Medical Center, Bucheon, Korea
| | - Hyoung Doo Shin
- Department of Genetic Epidemiology, SNP Genetics, Inc., Sogang University, Seoul, Korea.,Department of Life Science, Sogang University, Seoul, Korea
| | - Choon-Sik Park
- Department of Interdisciplinary Program in Biomedical Science Major, Soonchunhyang Graduate School, Bucheon, Korea. .,Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang, University Bucheon Hospital, Bucheon, Korea.
| |
Collapse
|
16
|
Knudsen L, Ruppert C, Ochs M. Tissue remodelling in pulmonary fibrosis. Cell Tissue Res 2016; 367:607-626. [PMID: 27981380 DOI: 10.1007/s00441-016-2543-2] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/19/2016] [Indexed: 12/16/2022]
Abstract
Many lung diseases result in fibrotic remodelling. Fibrotic lung disorders can be divided into diseases with known and unknown aetiology. Among those with unknown aetiology, idiopathic pulmonary fibrosis (IPF) is a common diagnosis. Because of its progressive character leading to a rapid decline in lung function, it is a fatal disease with poor prognosis and limited therapeutic options. Thus, IPF has motivated many studies in the last few decades in order to increase our mechanistic understanding of the pathogenesis of the disease. The current concept suggests an ongoing injury of the alveolar epithelium, an impaired regeneration capacity, alveolar collapse and, finally, a fibroproliferative response. The origin of lung injury remains elusive but a diversity of factors, which will be discussed in this article, has been shown to be associated with IPF. Alveolar epithelial type II (AE2) cells play a key role in lung fibrosis and their crucial role for epithelial regeneration, stabilisation of alveoli and interaction with fibroblasts, all known to be responsible for collagen deposition, will be illustrated. Whereas mechanisms of collagen deposition and fibroproliferation are the focus of many studies in the field, the awareness of other mechanisms in this disease is currently limited to biochemical and imaging studies including quantitative assessments of lung structure in IPF and animal models assigning alveolar collapse and collapse induration crucial roles for the degradation of the lung resulting in de-aeration and loss of surface area. Dysfunctional AE2 cells, instable alveoli and mechanical stress trigger remodelling that consists of collapsed alveoli absorbed by fibrotic tissue (i.e., collapse induration).
Collapse
Affiliation(s)
- Lars Knudsen
- Institute of Functional and Applied Anatomy, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany. .,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany. .,REBIRTH, Cluster of Excellence, Hannover Medical School, Hannover, Germany.
| | - Clemens Ruppert
- Department of Internal Medicine, Justus-Liebig-University Giessen, Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg, Giessen, Germany
| | - Matthias Ochs
- Institute of Functional and Applied Anatomy, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany.,REBIRTH, Cluster of Excellence, Hannover Medical School, Hannover, Germany
| |
Collapse
|
17
|
Ebener S, Barnowski S, Wotzkow C, Marti TM, Lopez-Rodriguez E, Crestani B, Blank F, Schmid RA, Geiser T, Funke M. Toll-like receptor 4 activation attenuates profibrotic response in control lung fibroblasts but not in fibroblasts from patients with IPF. Am J Physiol Lung Cell Mol Physiol 2016; 312:L42-L55. [PMID: 27815256 DOI: 10.1152/ajplung.00119.2016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 11/02/2016] [Indexed: 12/22/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a devastating lung disease with a median survival of 3 yr. IPF deteriorates upon viral or bacterial lung infection although pulmonary infection (pneumonia) in healthy lungs rarely induces fibrosis. Bacterial lipopolysaccharide (LPS) activates Toll-like receptor 4 (TLR4), initiating proinflammatory pathways. As TLR4 has already been linked to hepatic fibrosis and scleroderma, we now investigated the role of TLR4 in IPF fibroblasts. Lung tissue sections from patients with IPF were analyzed for TLR4 expression. Isolated normal human lung fibroblasts (NL-FB) and IPF fibroblasts (IPF-FB) were exposed to LPS and transforming growth factor-β (TGF-β) before expression analysis of receptors, profibrotic mediators, and cytokines. TLR4 is expressed in fibroblast foci of IPF lungs as well as in primary NL-FB and IPF-FB. As a model for a gram-negative pneumonia in the nonfibrotic lung, NL-FB and IPF-FB were coexposed to LPS and TGF-β. Whereas NL-FB produced significantly less connective tissue growth factor upon costimulation compared with TGF-β stimulation alone, IPF-FB showed significantly increased profibrotic markers compared with control fibroblasts after costimulation. Although levels of antifibrotic prostaglandin E2 were elevated after costimulation, they were not responsible for this effect. However, significant downregulation of TGF-β receptor type 1 in control fibroblasts seems to contribute to the reduced profibrotic response in our in vitro model. Normal and IPF fibroblasts thus differ in their profibrotic response upon LPS-induced TLR4 stimulation.
Collapse
Affiliation(s)
- Simone Ebener
- Department of Clinical Research, University of Bern, Bern, Switzerland.,Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland.,Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Sandra Barnowski
- Department of Clinical Research, University of Bern, Bern, Switzerland.,Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Carlos Wotzkow
- Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Thomas M Marti
- Department of Clinical Research, University of Bern, Bern, Switzerland.,Division of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Elena Lopez-Rodriguez
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany; and
| | | | - Fabian Blank
- Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Ralph A Schmid
- Department of Clinical Research, University of Bern, Bern, Switzerland.,Division of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Thomas Geiser
- Department of Clinical Research, University of Bern, Bern, Switzerland.,Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Manuela Funke
- Department of Clinical Research, University of Bern, Bern, Switzerland; .,Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| |
Collapse
|
18
|
Bardou O, Menou A, François C, Duitman JW, von der Thüsen JH, Borie R, Sales KU, Mutze K, Castier Y, Sage E, Liu L, Bugge TH, Fairlie DP, Königshoff M, Crestani B, Borensztajn KS. Membrane-anchored Serine Protease Matriptase Is a Trigger of Pulmonary Fibrogenesis. Am J Respir Crit Care Med 2016; 193:847-60. [PMID: 26599507 DOI: 10.1164/rccm.201502-0299oc] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
RATIONALE Idiopathic pulmonary fibrosis (IPF) is a devastating disease that remains refractory to current therapies. OBJECTIVES To characterize the expression and activity of the membrane-anchored serine protease matriptase in IPF in humans and unravel its potential role in human and experimental pulmonary fibrogenesis. METHODS Matriptase expression was assessed in tissue specimens from patients with IPF versus control subjects using quantitative reverse transcriptase-polymerase chain reaction, immunohistochemistry, and Western blotting, while matriptase activity was monitored by fluorogenic substrate cleavage. Matriptase-induced fibroproliferative responses and the receptor involved were characterized in human primary pulmonary fibroblasts by Western blot, viability, and migration assays. In the murine model of bleomycin-induced pulmonary fibrosis, the consequences of matriptase depletion, either by using the pharmacological inhibitor camostat mesilate (CM), or by genetic down-regulation using matriptase hypomorphic mice, were characterized by quantification of secreted collagen and immunostainings. MEASUREMENTS AND MAIN RESULTS Matriptase expression and activity were up-regulated in IPF and bleomycin-induced pulmonary fibrosis. In cultured human pulmonary fibroblasts, matriptase expression was significantly induced by transforming growth factor-β. Furthermore, matriptase elicited signaling via protease-activated receptor-2 (PAR-2), and promoted fibroblast activation, proliferation, and migration. In the experimental bleomycin model, matriptase depletion, by the pharmacological inhibitor CM or by genetic down-regulation, diminished lung injury, collagen production, and transforming growth factor-β expression and signaling. CONCLUSIONS These results implicate increased matriptase expression and activity in the pathogenesis of pulmonary fibrosis in human IPF and in an experimental mouse model. Overall, targeting matriptase, or treatment by CM, which is already in clinical use for other diseases, may represent potential therapies for IPF.
Collapse
Affiliation(s)
- Olivier Bardou
- 1 Inserm UMR1152, Medical School Xavier Bichat, Paris, France.,2 Université Paris Diderot, Sorbonne Paris Cité, Département Hospitalo-universitaire FIRE (Fibrosis, Inflammation and Remodeling) and LabEx Inflamex, Paris, France
| | - Awen Menou
- 1 Inserm UMR1152, Medical School Xavier Bichat, Paris, France.,2 Université Paris Diderot, Sorbonne Paris Cité, Département Hospitalo-universitaire FIRE (Fibrosis, Inflammation and Remodeling) and LabEx Inflamex, Paris, France
| | - Charlène François
- 1 Inserm UMR1152, Medical School Xavier Bichat, Paris, France.,2 Université Paris Diderot, Sorbonne Paris Cité, Département Hospitalo-universitaire FIRE (Fibrosis, Inflammation and Remodeling) and LabEx Inflamex, Paris, France
| | - Jan Willem Duitman
- 3 Center for Experimental and Molecular Medicine, Academic Medical Center, Amsterdam, the Netherlands
| | | | - Raphaël Borie
- 2 Université Paris Diderot, Sorbonne Paris Cité, Département Hospitalo-universitaire FIRE (Fibrosis, Inflammation and Remodeling) and LabEx Inflamex, Paris, France.,5 Assistance Publique-Hôpitaux de Paris, Department of Pulmonology A, Competence Center for Rare Lung Diseases, Bichat-Claude Bernard University Hospital, Paris, France
| | - Katiuchia Uzzun Sales
- 6 Oral and Pharyngeal Cancer Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland.,7 Department of Cell and Molecular Biology, Ribeirão Preto School of Medicine, University of São Paulo Ribeirão Preto, São Paulo, Brazil
| | - Kathrin Mutze
- 8 Member of the German Center of Lung Research, Comprehensive Pneumology Center, University Hospital, Ludwig-Maximilians University, Helmholtz Zentrum München, Munich, Germany
| | - Yves Castier
- 9 Assistance Publique-Hôpitaux de Paris, Department of Vascular and Thoracic Surgery, Bichat-Claude Bernard University Hospital, Denis Diderot University and Medical School Paris VII, France
| | - Edouard Sage
- 10 Department of Thoracic Surgery and Lung Transplantation, Hôpital Foch, Suresnes, France; and
| | - Ligong Liu
- 11 Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, Australia
| | - Thomas H Bugge
- 6 Oral and Pharyngeal Cancer Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland
| | - David P Fairlie
- 11 Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, Australia
| | - Mélanie Königshoff
- 8 Member of the German Center of Lung Research, Comprehensive Pneumology Center, University Hospital, Ludwig-Maximilians University, Helmholtz Zentrum München, Munich, Germany
| | - Bruno Crestani
- 1 Inserm UMR1152, Medical School Xavier Bichat, Paris, France.,2 Université Paris Diderot, Sorbonne Paris Cité, Département Hospitalo-universitaire FIRE (Fibrosis, Inflammation and Remodeling) and LabEx Inflamex, Paris, France.,5 Assistance Publique-Hôpitaux de Paris, Department of Pulmonology A, Competence Center for Rare Lung Diseases, Bichat-Claude Bernard University Hospital, Paris, France
| | - Keren S Borensztajn
- 1 Inserm UMR1152, Medical School Xavier Bichat, Paris, France.,2 Université Paris Diderot, Sorbonne Paris Cité, Département Hospitalo-universitaire FIRE (Fibrosis, Inflammation and Remodeling) and LabEx Inflamex, Paris, France
| |
Collapse
|
19
|
Fajardo-Puerta AB, Mato Prado M, Frampton AE, Jiao LR. Gene of the month: HGF. J Clin Pathol 2016; 69:575-9. [DOI: 10.1136/jclinpath-2015-203575] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2016] [Indexed: 12/11/2022]
Abstract
Hepatocyte growth factor (HGF) is a multifunctional cytokine with important roles in cell proliferation, survival, motility and morphogenesis. Secreted by cells of mesenchymal origin, HGF is the specific ligand for the tyrosine-kinase receptor c-MET (cellular mesenchymal-epithelial transition), also called MET, which is expressed in different types of epithelial, endothelial and haematopoietic progenitor cells. The HGF/MET axis is involved in several biological processes, such as embryogenesis, organogenesis, adult tissue regeneration (including wound healing and liver regeneration) and carcinogenesis, for both solid and haematological malignancies.1 2 HGF and its particular interaction with the MET receptor have been extensively investigated in the last decades and remain the focus of numerous clinical trials.3–8 This short review focuses on HGF structure and function, as well as its roles in liver regeneration and different types of tumours.
Collapse
|
20
|
Freynet O, Marchal-Sommé J, Jean-Louis F, Mailleux A, Crestani B, Soler P, Michel L. Human lung fibroblasts may modulate dendritic cell phenotype and function: results from a pilot in vitro study. Respir Res 2016; 17:36. [PMID: 27044262 PMCID: PMC4820963 DOI: 10.1186/s12931-016-0345-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 03/09/2016] [Indexed: 01/14/2023] Open
Abstract
In human lung fibrotic lesions, fibroblasts were shown to be closely associated with immature dendritic cell (DC) accumulation. The aim of the present pilot study was to characterize the role of pulmonary fibroblasts on DC phenotype and function, using co-culture of lung fibroblasts from patients with idiopathic pulmonary fibrosis (IPF) and from control patients, with a DC cell line MUTZ-3. We observed that co-culture of lung control and IPF fibroblasts with DCs reduced the expression of specific DC markers and down-regulated their T-cell stimulatory activity. This suggests that pulmonary fibroblasts might sustain chronic inflammation in the fibrotic lung by maintaining in situ a pool of immature DCs.
Collapse
Affiliation(s)
- Olivia Freynet
- Inserm U 1152, 46, rue Henri Huchard, Paris, 75018, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,DHU FIRE, Paris, France.,Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, Service de Pneumologie A, Paris, France
| | - Joëlle Marchal-Sommé
- Inserm U 1152, 46, rue Henri Huchard, Paris, 75018, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,DHU FIRE, Paris, France
| | - Francette Jean-Louis
- Inserm UMR-S 976, Université Paris Diderot, Sorbonne Paris Cité, Hôpital Saint Louis, Paris, France
| | - Arnaud Mailleux
- Inserm U 1152, 46, rue Henri Huchard, Paris, 75018, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,DHU FIRE, Paris, France
| | - Bruno Crestani
- Inserm U 1152, 46, rue Henri Huchard, Paris, 75018, France. .,Université Paris Diderot, Sorbonne Paris Cité, Paris, France. .,DHU FIRE, Paris, France. .,Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, Service de Pneumologie A, Paris, France. .,Service de Pneumologie, Hôpital Bichat, 46, rue Henri Huchard, Paris cedex 18, 75018, France.
| | - Paul Soler
- Inserm U 1152, 46, rue Henri Huchard, Paris, 75018, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,DHU FIRE, Paris, France
| | - Laurence Michel
- Inserm UMR-S 976, Université Paris Diderot, Sorbonne Paris Cité, Hôpital Saint Louis, Paris, France. .,Inserm UMR-S 976, Hôpital Saint-Louis, 1 avenue Claude Vellefaux, 75475, Paris, 75010, France.
| |
Collapse
|
21
|
Luzina IG, Todd NW, Sundararajan S, Atamas SP. The cytokines of pulmonary fibrosis: Much learned, much more to learn. Cytokine 2015; 74:88-100. [DOI: 10.1016/j.cyto.2014.11.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Revised: 11/09/2014] [Accepted: 11/10/2014] [Indexed: 02/07/2023]
|
22
|
Jiang X, Jiang X, Qu C, Chang P, Zhang C, Qu Y, Liu Y. Intravenous delivery of adipose-derived mesenchymal stromal cells attenuates acute radiation-induced lung injury in rats. Cytotherapy 2015; 17:560-70. [PMID: 25791071 DOI: 10.1016/j.jcyt.2015.02.011] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 02/12/2015] [Accepted: 02/13/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND AIMS Radiation-induced lung injury (RILI) commonly occurs in patients with thoracic cancer. However, an effective treatment option has not yet been established. Adipose-derived mesenchymal stromal cells (Ad-MSCs) have significant potential for clinical use, but their role in RILI is currently unknown. We aimed to evaluate the therapeutic capacity of Ad-MSCs to heal acute RILI in rats. METHODS Sprague-Dawley rats were used in this study. Rat Ad-MSCs were delivered through the tail veins of rats 2 h after thorax irradiation. Lung histopathologic findings, pulmonary levels of inflammatory cytokines (interleukin [IL]-1, IL-6, IL-10 and tumor necrosis factor-α), pro-fibrotic factors (transforming growth factor [TGF]-β1, connective tissue growth factor, α-smooth muscle actin and type 1 collagen), pro- or anti-apoptotic mediators (Bcl-2, Bax and caspase-3) and the multifunctional factor hepatocyte growth factor were evaluated after Ad-MSC transplant. RESULTS Intravenous delivery of Ad-MSCs attenuated acute RILI. Further studies showed that Ad-MSCs had anti-inflammation and anti-fibrotic effects and maintained lung epithelium integrity, as indicated by reduced serum levels of the pro-inflammatory cytokines IL-1, IL-6 and tumor necrosis factor-α, increased levels of the anti-inflammatory cytokine IL-10, and downregulated transforming growth factor -β1, α-smooth muscle actin and type 1 collagen levels in irradiated lung tissues. Ad-MSCs also regulated the expression of pro- and anti-apoptotic mediators (Bcl-2, Bax and caspase-3) to protect lung cells from apoptosis. CONCLUSIONS Intravenous Ad-MSC delivery attenuated acute RILI through anti-inflammation, anti-fibrosis and anti-apoptosis mechanisms.
Collapse
Affiliation(s)
- Xinping Jiang
- Department of Oncological Radiotherapy, The First Bethune Hospital of Jilin University, Changchun, China
| | - Xin Jiang
- Department of Oncological Radiotherapy, The First Bethune Hospital of Jilin University, Changchun, China
| | - Chao Qu
- Department of Oncological Radiotherapy, The First Bethune Hospital of Jilin University, Changchun, China
| | - Pengyu Chang
- Department of Oncological Radiotherapy, The First Bethune Hospital of Jilin University, Changchun, China
| | - Chu Zhang
- Department of Oncological Radiotherapy, The Second Bethune Hospital of Jilin University, Changchun, China
| | - Yaqin Qu
- Department of Oncological Radiotherapy, The First Bethune Hospital of Jilin University, Changchun, China.
| | - Yongjun Liu
- Alliancells Bioscience Co, Ltd, Tianjin, China.
| |
Collapse
|
23
|
Saini G, Porte J, Weinreb PH, Violette SM, Wallace WA, McKeever TM, Jenkins G. αvβ6 integrin may be a potential prognostic biomarker in interstitial lung disease. Eur Respir J 2015; 46:486-94. [DOI: 10.1183/09031936.00210414] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 01/16/2015] [Indexed: 11/05/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) and fibrotic nonspecific interstitial pneumonitis are progressive interstitial lung diseases (ILDs) with limited treatment options and poor survival. However, the rate of disease progression is variable, implying there may be different endotypes of disease. We hypothesised that immunophenotyping biopsies from ILD patients might reveal distinct endotypes of progressive fibrotic disease, which may facilitate stratification when undertaking clinical trials of novel therapies for IPF.43 paraffin-embedded, formalin-fixed lung tissue sections were immunostained for five molecules implicated in the pathogenesis of the fibrosis: α-smooth muscle actin (αSMA), αvβ6 integrin, pro-surfactant protein C (SP-C), hepatocyte growth factor (HGF) and tenascin-C (TenC). Levels of immunostaining and numbers of fibroblastic foci were quantified using operator-dependent and -independent methods. The relationship of all these markers to overall survival was analysed.Staining revealed high levels of αSMA, αvβ6 integrin, pro-SP-C, HGF and TenC, and fibroblastic foci. Immunostaining varied across samples for all molecules but only the extent of αvβ6 integrin immunostaining was associated with increased mortality. There was no association with the other markers measured.Our data suggest high levels of αvβ6 integrin may identify a specific endotype of progressive fibrotic lung disease.
Collapse
|
24
|
Characteristic Patterns in the Fibrotic Lung. Comparing Idiopathic Pulmonary Fibrosis with Chronic Lung Allograft Dysfunction. Ann Am Thorac Soc 2015; 12 Suppl 1:S34-41. [DOI: 10.1513/annalsats.201410-476mg] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
|
25
|
Abstract
Interstitial lung disease (ILD) encompasses a large and diverse group of pathological conditions that share similar clinical, radiological and pathological manifestations, despite potentially having quite different aetiologies and comorbidities. Idiopathic pulmonary fibrosis (IPF) represents probably the most aggressive form of ILD and systemic sclerosis is a multiorgan fibrotic disease frequently associated with ILD. Although the aetiology of these disorders remains unknown, in this review we analyse the pathogenic mechanisms by cell of interest (fibroblast, fibrocyte, myofibroblast, endothelial and alveolar epithelial cells and immune competent cells). New insights into the complex cellular contributions and interactions will be provided, comparing the role of cell subsets in the pathogenesis of IPF and systemic sclerosis. Distinct cell populations contribute to the complex pathogenesis of IPF and systemic sclerosis-associated ILDhttp://ow.ly/AjFaz
Collapse
|
26
|
Melboucy-Belkhir S, Pradère P, Tadbiri S, Habib S, Bacrot A, Brayer S, Mari B, Besnard V, Mailleux A, Guenther A, Castier Y, Mal H, Crestani B, Plantier L. Forkhead Box F1 represses cell growth and inhibits COL1 and ARPC2 expression in lung fibroblasts in vitro. Am J Physiol Lung Cell Mol Physiol 2014; 307:L838-47. [DOI: 10.1152/ajplung.00012.2014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Aberrant expression of master phenotype regulators or alterations in their downstream pathways in lung fibroblasts may play a central role in idiopathic pulmonary fibrosis (IPF). Interrogating IPF fibroblast transcriptome datasets, we identified Forkhead Box F1 (FOXF1), a DNA-binding protein required for lung development, as a candidate actor in IPF. Thus we determined FOXF1 expression levels in fibroblasts cultured from normal or IPF lungs in vitro, and explored FOXF1 functions in these cells using transient and stable loss-of-function and gain-of-function models. FOXF1 mRNA and protein were expressed at higher levels in IPF fibroblasts compared with normal fibroblasts (mRNA: +44%, protein: +77%). Immunohistochemistry showed FOXF1 expression in nuclei of bronchial smooth muscle cells, endothelial cells, and lung fibroblasts including fibroblastic foci of IPF lungs. In normal lung fibroblasts, FOXF1 repressed cell growth and expression of collagen-1 (COL1) and actin-related protein 2/3 complex, subunit 2 (ARPC2). ARPC2 knockdown inhibited cell growth and COL1 expression, consistent with FOXF1 acting in part through ARPC2 repression. In IPF fibroblasts, COL1 and ARPC2 repression by FOXF1 was blunted, and FOXF1 did not repress growth. FOXF1 expression was induced by the antifibrotic mediator prostaglandin E2 and repressed by the profibrotic cytokine transforming growth factor-β1 in both normal and IPF lung fibroblasts. Ex vivo, FOXF1 knockdown conferred CCL-210 lung fibroblasts the ability to implant in uninjured mouse lungs. In conclusion, FOXF1 functions and regulation were consistent with participation in antifibrotic pathways. Alterations of pathways downstream of FOXF1 may participate to fibrogenesis in IPF fibroblasts.
Collapse
Affiliation(s)
| | - Pauline Pradère
- INSERM UMR1152, Labex Inflamex, Paris, France
- Assistance-Publique-Hôpitaux de Paris, Hôpital Bichat-Claude Bernard, DHU FIRE, Service de Pneumologie A, Paris, France
- Université Paris Diderot, PRES Sorbonne Paris Cité, Paris, France
| | | | | | | | | | - Bernard Mari
- Institut de Pharmacologie Moléculaire et Cellulaire, CNRS UMR7275, Valbonne, France
| | | | | | - Andreas Guenther
- University of Giessen Lung Centre, Department of Internal Medicine, Giessen, Germany
- Lung Clinic Waldhof-Elgershausen, Greifenstein, Germany
| | - Yves Castier
- Université Paris Diderot, PRES Sorbonne Paris Cité, Paris, France
- Assistance-Publique-Hôpitaux de Paris, Hôpital Bichat-Claude Bernard, Service de Chirurgie Thoracique et Transplantation Pulmonaire, Paris, France
| | - Hervé Mal
- Université Paris Diderot, PRES Sorbonne Paris Cité, Paris, France
- Assistance-Publique-Hôpitaux de Paris, Hôpital Bichat-Claude Bernard, Service de Pneumologie B et Transplantation Pulmonaire, Paris, France; and
| | - Bruno Crestani
- INSERM UMR1152, Labex Inflamex, Paris, France
- Assistance-Publique-Hôpitaux de Paris, Hôpital Bichat-Claude Bernard, DHU FIRE, Service de Pneumologie A, Paris, France
- Université Paris Diderot, PRES Sorbonne Paris Cité, Paris, France
| | - Laurent Plantier
- INSERM UMR1152, Labex Inflamex, Paris, France
- Université Paris Diderot, PRES Sorbonne Paris Cité, Paris, France
- Assistance-Publique-Hôpitaux de Paris, Hôpital Bichat-Claude Bernard, Service de Physiologie-Explorations Fonctionnelles, Paris, France
| |
Collapse
|
27
|
Gazdhar A, Grad I, Tamò L, Gugger M, Feki A, Geiser T. The secretome of induced pluripotent stem cells reduces lung fibrosis in part by hepatocyte growth factor. Stem Cell Res Ther 2014; 5:123. [PMID: 25384638 PMCID: PMC4445988 DOI: 10.1186/scrt513] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 10/28/2014] [Indexed: 02/07/2023] Open
Abstract
Introduction Idiopathic pulmonary fibrosis (IPF) is a progressive and irreversible fibrotic lung disease, resulting in respiratory insufficiency and reduced survival. Pulmonary fibrosis is a result of repeated alveolar epithelial microinjuries, followed by abnormal regeneration and repair processes in the lung. Recently, stem cells and their secretome have been investigated as a novel therapeutic approach in pulmonary fibrosis. We evaluated the potential of induced pluripotent stem cells (iPSC) conditioned media (iPSC-cm) to regenerate and repair the alveolar epithelium in vitro and improve bleomycin induced lung injury in vivo. Methods IPSC-cm was collected from cultured iPSC derived from human foreskin fibroblasts and its biological effects on alveolar epithelial wound repair was studied in an alveolar wound healing assay in vitro. Furthermore, iPSC-cm was intratracheally instilled 7 days after bleomycin induced injury in the rat lungs and histologically and biochemically assessed 7 days after instillation. Results iPSC-cm increased alveolar epithelial wound repair in vitro compared with medium control. Intratracheal instillation of iPSC-cm in bleomycin-injured lungs reduced the collagen content and improved lung fibrosis in the rat lung in vivo. Profibrotic TGFbeta1 and α-smooth muscle actin (α-sma) expression were markedly reduced in the iPSC-cm treated group compared with control. Antifibrotic hepatocyte growth factor (HGF) was detected in iPSC-cm in biologically relevant levels, and specific inhibition of HGF in iPSC-cm attenuated the antifibrotic effect of iPSC-cm, indicating a central role of HGF in iPSC-cm. Conclusion iPSC-cm increased alveolar epithelial wound repair in vitro and attenuated bleomycin induced fibrosis in vivo, partially due to the presence of HGF and may represent a promising novel, cell free therapeutic option against lung injury and fibrosis. Electronic supplementary material The online version of this article (doi:10.1186/scrt513) contains supplementary material, which is available to authorized users.
Collapse
|
28
|
Increased expression of protease nexin-1 in fibroblasts during idiopathic pulmonary fibrosis regulates thrombin activity and fibronectin expression. J Transl Med 2014; 94:1237-46. [PMID: 25199049 DOI: 10.1038/labinvest.2014.111] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 07/03/2014] [Accepted: 07/29/2014] [Indexed: 11/08/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic diffuse lung disease characterized by an accumulation of excess fibrous material in the lung. Protease nexin-1 (PN-1) is a tissue serpin produced by many cell types, including lung fibroblasts. PN-1 is capable of regulating proteases of both coagulation and fibrinolysis systems, by inhibiting, respectively, thrombin and plasminergic enzymes. PN-1 is thus a good candidate for regulating tissue remodeling occurring during IPF. We demonstrated a significant increase of PN-1 expression in lung tissue extracts, lung fibroblasts and bronchoalveolar lavage fluids of patients with IPF. The increase of PN-1 expression was reproduced after stimulation of control lung fibroblasts by transforming growth factor-β, a major pro-fibrotic cytokine involved in IPF. Another serpin, plasminogen activator inhibitor-1 (PAI-1) is also overexpressed in fibrotic fibroblasts. Unlike PAI-1, cell-bound PN-1 as well as secreted PN-1 from IPF and stimulated fibroblasts were shown to inhibit efficiently thrombin activity, indicating that both serpins should exhibit complementary roles in IPF pathogenesis, via their different preferential antiprotease activities. Moreover, we observed that overexpression of PN-1 induced by transfection of control fibroblasts led to increased fibronectin expression, whereas PN-1 silencing induced in fibrotic fibroblasts led to decreased fibronectin expression. Overexpression of PN-1 lacking either its antiprotease activity or its binding capacity to glycosaminoglycans had no effect on fibronectin expression. These novel findings suggest that modulation of PN-1 expression in lung fibroblasts may also have a role in the development of IPF by directly influencing the expression of extracellular matrix proteins. Our data provide new insights into the role of PN-1 in the poorly understood pathological processes involved in IPF and could therefore give rise to new therapeutic approaches.
Collapse
|
29
|
Landgraf KE, Steffek M, Quan C, Tom J, Yu C, Santell L, Maun HR, Eigenbrot C, Lazarus RA. An allosteric switch for pro-HGF/Met signaling using zymogen activator peptides. Nat Chem Biol 2014; 10:567-73. [DOI: 10.1038/nchembio.1533] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 04/17/2014] [Indexed: 12/17/2022]
|
30
|
Kang HR, Lee JY, Lee CG. TGF-β1 as a therapeutic target for pulmonary fibrosis and COPD. Expert Rev Clin Pharmacol 2014; 1:547-58. [PMID: 24410556 DOI: 10.1586/17512433.1.4.547] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
TGF-β1 is a multifunctional molecule that is expressed in an exaggerated fashion during injury, inflammation and repair. Its expression is dysregulated in lung tissues from patients with pulmonary fibrosis and chronic obstructive pulmonary disease. In animal models, introduction of TGF-β1 expression in the lung causes prominent tissue fibrosis and alveolar destruction. On the other hand, the exaggerated production of TGF-β1, an inability to activate TGF-β1 or a block in TGF-β1 signaling have all been associated with the development of emphysematous pulmonary lesions. A number of studies have demonstrated that TGF-β1 is a major player in the pathogenesis of pulmonary fibrosis and emphysema. In this review, we discuss how TGF-β1 expression is regulated and mechanistically related to the development of tissue fibrosis and emphysema in experimental animal models and humans. We further highlight potential therapeutic options that control TGF-β1-associated genes or signals to restore extracellular matrix homeostasis in which TGF-β1 plays a central role.
Collapse
Affiliation(s)
- Hye-Ryun Kang
- Department of Internal Medicine, Hallym University School of Medicine, Anyang, Korea
| | | | | |
Collapse
|
31
|
Borensztajn K, Crestani B, Kolb M. Idiopathic pulmonary fibrosis: from epithelial injury to biomarkers--insights from the bench side. ACTA ACUST UNITED AC 2013; 86:441-52. [PMID: 24356558 DOI: 10.1159/000357598] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is the most frequent fibrotic diffuse parenchymal lung disease. Its prognosis is devastating: >50% of the patients die within 3 years after diagnosis. Options for the treatment of IPF are limited and lung transplantation is the only 'curative' therapy. Currently, in the absence of validated indicators of disease progression/activity and diagnostic tools, the clinical management of IPF remains a major challenge. A better understanding of the pathogenesis of IPF is critical for the identification of new therapeutic targets as well as molecules that may serve as surrogate markers for clinically significant endpoints. The current paradigm on the mechanisms leading from a normal to a fibrotic lung postulates that chronic epithelial lesion leads to aberrant wound healing activation, which is characterized by deregulated fibroblast proliferation and activation together with an uncontrolled extracellular matrix synthesis. In this review, we shed light on the role of epithelial cell damage in the pathogenesis of fibrosis. Finally, we examine the markers of epithelial damage and their potential use as biomarkers and the future of this continuously expanding field.
Collapse
|
32
|
Chakraborty S, Chopra P, Hak A, Dastidar SG, Ray A. Hepatocyte growth factor is an attractive target for the treatment of pulmonary fibrosis. Expert Opin Investig Drugs 2013; 22:499-515. [PMID: 23484858 DOI: 10.1517/13543784.2013.778972] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Pulmonary fibrosis (PF) is a progressive fatal disorder and is characterized by alveolar epithelial injury, myofibroblast proliferation, and extracellular matrix remodeling, resulting in irreversible distortion of lung's architecture. Available therapies are associated with side effects and show restricted efficacy. Therefore, there is an urgent need to find a therapeutic solution to PF. Therapeutic strategies interfering myofibroblast expansion, apoptosis of epithelial and endothelial cells might be beneficial for treatment of PF. Hepatocyte growth factor (HGF), a pleiotropic growth factor, plays an important role in lung development, inflammation, repair, and regeneration. In animal model of PF, administration of recombinant HGF protein or ectopic HGF expression ameliorates fibrosis. AREAS COVERED The focus of this review is to highlight HGF as a promising therapeutic approach for the treatment of PF. The review discusses the currently available treatment option for PF as well as highlights the possible beneficial effect of HGF as a drug target. EXPERT OPINION HGF with its anti-fibrotic effect provides a promising new therapeutic approach by protecting lung from fibrotic remodeling and also promoting normal regeneration of lung. The development of HGF mimetics may provide a potential attractive therapy for treatment of this devastating and complex disease.
Collapse
Affiliation(s)
- Sushmita Chakraborty
- Daiichi Sankyo Life Science Research Centre in India (RCI), Department of Biology, Haryana, India
| | | | | | | | | |
Collapse
|
33
|
Crestani B, Besnard V, Plantier L, Borensztajn K, Mailleux A. Fibroblasts: the missing link between fibrotic lung diseases of different etiologies? Respir Res 2013; 14:81. [PMID: 23915374 PMCID: PMC3734215 DOI: 10.1186/1465-9921-14-81] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 07/25/2013] [Indexed: 01/06/2023] Open
|
34
|
HGF Expressing Stem Cells in Usual Interstitial Pneumonia Originate from the Bone Marrow and Are Antifibrotic. PLoS One 2013; 8:e65453. [PMID: 23840329 PMCID: PMC3686785 DOI: 10.1371/journal.pone.0065453] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 04/24/2013] [Indexed: 12/15/2022] Open
Abstract
Background Pulmonary fibrosis may result from abnormal alveolar wound repair after injury. Hepatocyte growth factor (HGF) improves alveolar epithelial wound repair in the lung. Stem cells were shown to play a major role in lung injury, repair and fibrosis. We studied the presence, origin and antifibrotic properties of HGF-expressing stem cells in usual interstitial pneumonia. Methods Immunohistochemistry was performed in lung tissue sections and primary alveolar epithelial cells obtained from patients with usual interstitial pneumonia (UIP, n = 7). Bone marrow derived stromal cells (BMSC) from adult male rats were transfected with HGF, instilled intratracheally into bleomycin injured rat lungs and analyzed 7 and 14 days later. Results In UIP, HGF was expressed in specific cells mainly located in fibrotic areas close to the hyperplastic alveolar epithelium. HGF-positive cells showed strong co-staining for the mesenchymal stem cell markers CD44, CD29, CD105 and CD90, indicating stem cell origin. HGF-positive cells also co-stained for CXCR4 (HGF+/CXCR4+) indicating that they originate from the bone marrow. The stem cell characteristics were confirmed in HGF secreting cells isolated from UIP lung biopsies. In vivo experiments showed that HGF-expressing BMSC attenuated bleomycin induced pulmonary fibrosis in the rat, indicating a beneficial role of bone marrow derived, HGF secreting stem cells in lung fibrosis. Conclusions HGF-positive stem cells are present in human fibrotic lung tissue (UIP) and originate from the bone marrow. Since HGF-transfected BMSC reduce bleomycin induced lung fibrosis in the bleomycin lung injury and fibrosis model, we assume that HGF-expressing, bone-marrow derived stem cells in UIP have antifibrotic properties.
Collapse
|
35
|
Xu L, Yang D, Zhu S, Gu J, Ding F, Bian W, Rong Z, Shen C. Bleomycin-induced pulmonary fibrosis is attenuated by an antibody against KL-6. Exp Lung Res 2013; 39:241-8. [DOI: 10.3109/01902148.2013.798056] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
36
|
Willems S, Stijn W, Verleden SE, Vanaudenaerde BM, Wynants M, Marijke W, Dooms C, Christophe D, Yserbyt J, Jonas Y, Somers J, Jana S, Verbeken EK, Verleden GM, Wuyts WA. Multiplex protein profiling of bronchoalveolar lavage in idiopathic pulmonary fibrosis and hypersensitivity pneumonitis. Ann Thorac Med 2013; 8:38-45. [PMID: 23440593 PMCID: PMC3573557 DOI: 10.4103/1817-1737.105718] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 11/23/2012] [Indexed: 12/25/2022] Open
Abstract
CONTEXT: Idiopathic pulmonary fibrosis (IPF) and chronic hypersensitivity pneumonitis (HP) are diffuse parenchymal lung diseases characterized by a mixture of inflammation and fibrosis, leading to lung destruction and finally death. AIMS: The aim of this study was to compare different pathophysiological mechanisms, such as angiogenesis, coagulation, fibrosis, tissue repair, inflammation, epithelial damage, oxidative stress, and matrix remodeling, in both disorders using bronchoalveolar lavage (BAL). METHODS: At diagnosis, patients underwent bronchoscopy with BAL and were divided into three groups: Control (n = 10), HP (n = 11), and IPF (n = 11), based on multidisciplinary approach (clinical examination, radiology, and histology): Multiplex searchlight technology was used to analyze 25 proteins representative for different pathophysiological processes: Eotaxin, basic fibroblast growth factor (FGFb), fibronectin, hepatocyte growth factor (HGF), interleukine (IL)-8, IL-12p40, IL-17, IL-23, monocyte chemotactic protein (MCP-1), macrophage-derived chemokine (MDC), myeloperoxidase (MPO), matrix metalloproteinase (MMP)-8, MMP-9, active plasminogen activating inhibitor 1 (PAI-1), pulmonary activation regulated chemokine (PARC), placental growth factor (PlGF), protein-C, receptor for advanced glycation end products (RAGE), regulated on activation normal T cells expressed and secreted (RANTES), surfactant protein-C (SP-C), transforming growth factor-β1 (TGF-β1), tissue inhibitor of metalloproteinase-1 (TIMP-1), tissue factor, thymic stromal lymphopoietin (TSLP), and vascular endothelial growth factor (VEGF). RESULTS: All patients suffered from decreased pulmonary function and abnormal BAL cell differential compared with control. Protein levels were increased in both IPF and HP for MMP-8 (P = 0.022), MMP-9 (P = 0.0020), MCP-1 (P = 0.0006), MDC (P = 0.0048), IL-8 (P = 0.013), MPO (P = 0.019), and protein-C (P = 0.0087), whereas VEGF was decreased (P = 0.0003) compared with control. HGF was upregulated in HP (P = 0.0089) and active PAI-1 was upregulated (P = 0.019) in IPF compared with control. Differences in expression between IPF and HP were observed for IL-12p40 (P = 0.0093) and TGF-β1 (P = 0.0045). CONCLUSIONS: Using BAL, we demonstrated not only expected similarities but also important differences in both disorders, many related to the innate immunity. These findings provide new clues for further research in both disorders.
Collapse
Affiliation(s)
- Stijn Willems
- Department of Pathophysiology, Katholieke Universiteit Leuven and University Hospital Gasthuisberg, Leuven, Belgium
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Abstract
Idiopathic pulmonary fibrosis is currently believed to be driven by alveolar epithelial cells, with abnormally activated alveolar epithelial cells accumulating in an attempt to repair injured alveolar epithelium (1). Thus, targeting the alveolar epithelium to prevent or inhibit the development of pulmonary fibrosis might be an interesting therapeutic option in this disease. Hepatocyte growth factor (HGF) is a growth factor for epithelial and endothelial cells, which is secreted by different cell types, especially fibroblasts and neutrophils. HGF has mitogenic, motogenic, and morphogenic properties and exerts an antiapoptotic action on epithelial and endothelial cells. HGF has also proangiogenic effect. In vitro, HGF inhibits epithelial-to-mesenchymal cell transition and promotes myofibroblast apoptosis. In vivo, HGF has antifibrotic properties demonstrated in experimental models of lung, kidney, heart, skin, and liver fibrosis. Hence, the modulation of HGF may be an attractive target for the treatment of lung fibrosis.
Collapse
|
38
|
Leuenberger A, Gazdhar A, Herrmann G, Ochs M, Geiser T, Knudsen L. Cell-specific expression of human HGF by alveolar type II cells induces remodeling of septal wall tissue in the lung: a morphometric study. J Appl Physiol (1985) 2012; 113:799-807. [PMID: 22744972 DOI: 10.1152/japplphysiol.00411.2012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Hepatocyte growth factor (HGF) is involved in development and regeneration of the lungs. Human HGF, which was expressed specifically by alveolar epithelial type II cells after gene transfer, attenuated the bleomycin-induced pulmonary fibrosis in an animal model. As there are also regions that appear morphologically unaffected in fibrosis, the effects of this gene transfer to normal lungs is of interest. In vitro studies showed that HGF inhibits the formation of the basal lamina by cultured alveolar epithelial cells. Thus we hypothesized that, in the healthy lung, cell-specific expression of HGF induces a remodeling within septal walls. Electroporation of a plasmid of human HGF gene controlled by the surfactant protein C promoter was applied for targeted gene transfer. Using design-based stereology at light and electron microscopic level, structural alterations were analyzed and compared with a control group. HGF gene transfer increased the volume of distal air spaces, as well as the surface area of the alveolar epithelium. The volume of septal walls, as well as the number of alveoli, was unchanged. Volumes per lung of collagen and elastic fibers were unaltered, but a marked reduction of the volume of residual extracellular matrix (all components other than collagen and elastic fibers) and interstitial cells was found. A correlation between the volumes of residual extracellular matrix and distal air spaces, as well as total surface area of alveolar epithelium, could be established. Cell-specific expression of HGF leads to a remodeling of the connective tissue within the septal walls in the healthy lung, which is associated with more pronounced stretching of distal air spaces at a given hydrostatic pressure during instillation fixation.
Collapse
|
39
|
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
|
40
|
Huang HP, Chang MH, Chen YT, Hsu HY, Chiang CL, Cheng TS, Wu YM, Wu MZ, Hsu YC, Shen CC, Lee CN, Chuang YH, Hong CL, Jeng YM, Chen PH, Chen HL, Lee MS. Persistent elevation of hepatocyte growth factor activator inhibitors in cholangiopathies affects liver fibrosis and differentiation. Hepatology 2012; 55:161-72. [PMID: 21898507 DOI: 10.1002/hep.24657] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 08/18/2011] [Indexed: 12/29/2022]
Abstract
UNLABELLED Alteration of cell surface proteolysis has been proposed to play a role in liver fibrosis, a grave complication of biliary atresia (BA). In this study we investigated the roles of hepatocyte growth factor activator inhibitor (HAI)-1 and -2 in the progression of BA. The expression levels of HAI-1 and -2 were significantly increased in BA livers compared with those in neonatal hepatitis and correlated with disease progression. In BA livers, HAI-1 and -2 were coexpressed in cells involved in ductular reactions. In other selective cholangiopathies, ductular cells positive for HAI-1 or HAI-2 also increased in number. Inflammatory cytokines, growth factors, and bile acids differentially up-regulated expression of HAI-1 and -2 transcripts in fetal liver cells and this induction could be antagonized by a cyclooxygenase-2 inhibitor. Conditioned media from cell lines stably overexpressing HAI-1 or HAI-2 enhanced the fibrogenic activity of portal fibroblasts and stellate cells, suggesting that both proteins might be involved in liver fibrosis. Because HAI-1 and -2 colocalized in ductular reactions sharing similar features to those observed during normal liver development, we sought to investigate the role of HAI-1 and -2 in cholangiopathies by exploring their functions in fetal liver cells. Knockdown of HAI-1 or HAI-2 promoted bidirectional differentiation of hepatoblast-derived cells. In addition, we showed that the hepatocyte growth factor activator, mitogen-activated protein kinase kinase 1, and phosphatidylinositol 3-kinase signaling pathways were involved in hepatic differentiation enhanced by HAI-2 knockdown. CONCLUSION HAI-1 and -2 are overexpressed in the liver in cholangiopathies with ductular reactions and are possibly involved in liver fibrosis and hepatic differentiation; they could be investigated as disease markers and potential therapeutic targets.
Collapse
Affiliation(s)
- Hsiang-Po Huang
- Department of Medical Research, National Taiwan University Hospital, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Endo H, Niioka M, Sugioka Y, Itoh J, Kameyama K, Okazaki I, Ala-Aho R, Kähäri VM, Watanabe T. Matrix metalloproteinase-13 promotes recovery from experimental liver cirrhosis in rats. Pathobiology 2011; 78:239-52. [PMID: 21849805 DOI: 10.1159/000328841] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Accepted: 04/19/2011] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To evaluate the role of matrix metalloproteinase (MMP)-13 gene expression in the early phase of recovery from liver fibrosis/cirrhosis. METHODS Liver fibrosis was induced in male Wistar rats by administration of carbon tetrachloride (CCl(4)) for 10 weeks. Recombinant adenovirus-mediated human MMP-13 gene transfer (RAdMMP-13) was performed via the femoral vein on day 3 after the last CCl(4) injection. The role of MMP-13 in stably expressing cell lines was also analyzed. RESULTS Fibrous deposition in the liver was decreased in RAdMMP-13-injected rats by day 3 after gene transfer compared with empty vector RAd66-injected rats. Furthermore, MMP-2 and MMP-9 enzymatic activity was markedly enhanced in the liver of RAdMMP-13 injected rats. Hepatocyte growth factor (HGF) induction was also increased in RAdMMP-13 injected rats. In established stable HT-1080 cells transfected with MMP-13, HGF-α expression and MMP-2 and MMP-9 enzymatic activity were increased. The conversion of precursor HGF into mature HGF was also increased in the MMP-13 expressing cell lines. CONCLUSION Forced MMP-13 expression effectively accelerated recovery from liver cirrhosis via the effects of MMP-13-mediated HGF, MMP-2, and MMP-9 expression, which induced the degradation of collagen fibers and promoted hepatic regeneration.
Collapse
Affiliation(s)
- Hitoshi Endo
- Center for Molecular Prevention and Environmental Medicine, Department of Community Health, Tokai University School of Medicine, Isehara, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Bozyk PD, Moore BB. Prostaglandin E2 and the pathogenesis of pulmonary fibrosis. Am J Respir Cell Mol Biol 2011; 45:445-52. [PMID: 21421906 DOI: 10.1165/rcmb.2011-0025rt] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Prostaglandin (PG)E(2) is a bioactive eicosanoid that regulates many biologically important processes in part due to its ability to signal through four distinct G-protein-coupled receptors with differential signaling activity and unique expression patterns in different cell types. Although PGE(2) has been linked to malignancy in many organs, it is believed to play a beneficial role in the setting of fibrotic lung disease. This is in part due to the ability of PGE(2) to limit many of the pathobiologic features of lung fibroblasts and myofibroblasts, including the ability of PGE(2) to limit fibroblast proliferation, migration, collagen secretion, and, as originally reported in the Journal by us in 2003, the ability to limit transforming growth factor (TGF)-β-induced myofibroblast differentiation. In the setting of lung fibrosis, PGE(2) production and signaling is often diminished. In the last 8 years, significant advances have been made to better understand the dysregulation of PGE(2) production and signaling in the setting of lung fibrosis. We also have a clearer picture of how PGE(2) inhibits myofibroblast differentiation and the receptor signaling pathways that can influence fibroblast proliferation. This review highlights these recent advances and offers new insights into the potential ways that PGE(2) and its downstream signals can be regulated for therapeutic benefit in a disease that has no validated treatment options.
Collapse
Affiliation(s)
- Paul D Bozyk
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | | |
Collapse
|
43
|
Panganiban RAM, Day RM. Hepatocyte growth factor in lung repair and pulmonary fibrosis. Acta Pharmacol Sin 2011; 32:12-20. [PMID: 21131996 DOI: 10.1038/aps.2010.90] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Pulmonary remodeling is characterized by the permanent and progressive loss of the normal alveolar architecture, especially the loss of alveolar epithelial and endothelial cells, persistent proliferation of activated fibroblasts, or myofibroblasts, and alteration of extracellular matrix. Hepatocyte growth factor (HGF) is a pleiotropic factor, which induces cellular motility, survival, proliferation, and morphogenesis, depending upon the cell type. In the adult, HGF has been demonstrated to play a critical role in tissue repair, including in the lung. Administration of HGF protein or ectopic expression of HGF has been demonstrated in animal models of pulmonary fibrosis to induce normal tissue repair and to prevent fibrotic remodeling. HGF-induced inhibition of fibrotic remodeling may occur via multiple direct and indirect mechanisms including the induction of cell survival and proliferation of pulmonary epithelial and endothelial cells, and the reduction of myofibroblast accumulation.
Collapse
|
44
|
Nakamura T, Sakai K, Nakamura T, Matsumoto K. Hepatocyte growth factor twenty years on: Much more than a growth factor. J Gastroenterol Hepatol 2011; 26 Suppl 1:188-202. [PMID: 21199531 DOI: 10.1111/j.1440-1746.2010.06549.x] [Citation(s) in RCA: 347] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Liver regeneration depends on the proliferation of mature hepatocytes. In the 1980s, the method for the cultivation of mature hepatocytes provided an opportunity for the discovery of hepatocyte growth factor (HGF) as a protein that is structurally and functionally different from other growth factors. In 1991, the scatter factor, tumor cytotoxic factor, and 3-D epithelial morphogen were identified as HGF, and Met tyrosine kinase was identified as the receptor for HGF. Thus, the connection of apparently unrelated research projects rapidly enriched the research on HGF in different fields. The HGF-Met pathway plays important roles in the embryonic development of the liver and the placenta, in the migration of myogenic precursor cells, and in epithelial morphogenesis. The use of tissue-specific knockout mice demonstrated that in mature tissues the HGF-Met pathway plays a critical role in tissue protection and regeneration, and in providing less susceptibility to chronic inflammation and fibrosis. In various injury and disease models, HGF promotes cell survival, regeneration of tissues, and suppresses and improves chronic inflammation and fibrosis. Drug development using HGF has been challenging, but extensive preclinical studies to address its therapeutic effects have provided significant results sufficient for the development of HGF as a biological drug in the regeneration-based therapy of diseases. Clinical trials using recombinant human HGF protein, or HGF genes, are in progress for the treatment of diseases.
Collapse
|
45
|
Panganiban RAM, Day RM. Hepatocyte growth factor in lung repair and pulmonary fibrosis. Int J Radiat Biol 2010; 89:656-67. [PMID: 21131996 DOI: 10.3109/09553002.2012.711502] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Pulmonary remodeling is characterized by the permanent and progressive loss of the normal alveolar architecture, especially the loss of alveolar epithelial and endothelial cells, persistent proliferation of activated fibroblasts, or myofibroblasts, and alteration of extracellular matrix. Hepatocyte growth factor (HGF) is a pleiotropic factor, which induces cellular motility, survival, proliferation, and morphogenesis, depending upon the cell type. In the adult, HGF has been demonstrated to play a critical role in tissue repair, including in the lung. Administration of HGF protein or ectopic expression of HGF has been demonstrated in animal models of pulmonary fibrosis to induce normal tissue repair and to prevent fibrotic remodeling. HGF-induced inhibition of fibrotic remodeling may occur via multiple direct and indirect mechanisms including the induction of cell survival and proliferation of pulmonary epithelial and endothelial cells, and the reduction of myofibroblast accumulation.
Collapse
Affiliation(s)
- Ronald Allan M Panganiban
- Department of Pharmacology, Uniformed Services University of Health Sciences, Bethesda, MD 20852, USA
| | | |
Collapse
|
46
|
Bauman KA, Wettlaufer SH, Okunishi K, Vannella KM, Stoolman JS, Huang SK, Courey AJ, White ES, Hogaboam CM, Simon RH, Toews GB, Sisson TH, Moore BB, Peters-Golden M. The antifibrotic effects of plasminogen activation occur via prostaglandin E2 synthesis in humans and mice. J Clin Invest 2010; 120:1950-60. [PMID: 20501949 DOI: 10.1172/jci38369] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Accepted: 03/17/2010] [Indexed: 02/06/2023] Open
Abstract
Plasminogen activation to plasmin protects from lung fibrosis, but the mechanism underlying this antifibrotic effect remains unclear. We found that mice lacking plasminogen activation inhibitor-1 (PAI-1), which are protected from bleomycin-induced pulmonary fibrosis, exhibit lung overproduction of the antifibrotic lipid mediator prostaglandin E2 (PGE2). Plasminogen activation upregulated PGE2 synthesis in alveolar epithelial cells, lung fibroblasts, and lung fibrocytes from saline- and bleomycin-treated mice, as well as in normal fetal and adult primary human lung fibroblasts. This response was exaggerated in cells from Pai1-/- mice. Although enhanced PGE2 formation required the generation of plasmin, it was independent of proteinase-activated receptor 1 (PAR-1) and instead reflected proteolytic activation and release of HGF with subsequent induction of COX-2. That the HGF/COX-2/PGE2 axis mediates in vivo protection from fibrosis in Pai1-/- mice was demonstrated by experiments showing that a selective inhibitor of the HGF receptor c-Met increased lung collagen to WT levels while reducing COX-2 protein and PGE2 levels. Of clinical interest, fibroblasts from patients with idiopathic pulmonary fibrosis were found to be defective in their ability to induce COX-2 and, therefore, unable to upregulate PGE2 synthesis in response to plasmin or HGF. These studies demonstrate crosstalk between plasminogen activation and PGE2 generation in the lung and provide a mechanism for the well-known antifibrotic actions of the fibrinolytic pathway.
Collapse
Affiliation(s)
- Kristy A Bauman
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Kataoka H, Kawaguchi M. Hepatocyte growth factor activator (HGFA): pathophysiological functions in vivo. FEBS J 2010; 277:2230-7. [PMID: 20402763 DOI: 10.1111/j.1742-4658.2010.07640.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hepatocyte growth factor activator (HGFA) is a serine protease initially identified as a potent activator of hepatocyte growth factor/scatter factor. Hepatocyte growth factor/scatter factor is known to be critically involved in tissue morphogenesis, regeneration, and tumor progression, via its receptor, MET. In vivo, HGFA also activates macrophage-stimulating protein, which has roles in macrophage recruitment and inflammatory processes, cellular survival and wound healing through its receptor, RON. Therefore, the pericellular activity of HGFA might be an important factor regulating the activities of these multifunctional cytokines in vivo. HGFA is secreted mainly by the liver, circulates in the plasma as a zymogen (pro-HGFA), and is activated in response to tissue injury, including tumor growth. In addition, local production of pro-HGFA by epithelial, stromal or tumor cells has been reported. Although the generation of HGFA-knockout mice revealed that the role played by HGFA in normal development and physiological settings can be compensated for by other protease systems, HGFA has important roles in regeneration and initial macrophage recruitment in injured tissue in vivo. Insufficient activity of HGFA results in impaired regeneration of severely damaged mucosal epithelium, and may contribute to the progression of fibrotic lung diseases. On the other hand, deregulated excess activity of HGFA may be involved in the progression of some types of cancer.
Collapse
Affiliation(s)
- Hiroaki Kataoka
- Faculty of Medicine, University of Miyazaki, Kiyotake, Miyazaki, Japan.
| | | |
Collapse
|
48
|
Phin S, Marchand-Adam S, Fabre A, Marchal-Somme J, Bantsimba-Malanda C, Kataoka H, Soler P, Crestani B. Imbalance in the pro-hepatocyte growth factor activation system in bleomycin-induced lung fibrosis in mice. Am J Respir Cell Mol Biol 2009; 42:286-93. [PMID: 19448157 DOI: 10.1165/rcmb.2008-0305oc] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Hepatocyte growth factor (HGF) is a growth factor for alveolar epithelial cells. Activation of pro-HGF to HGF is regulated by the HGF activator (HGFA), a serine protease, and a specific inhibitor (HGFA inhibitor-1, HAI-1). An imbalance in the HGFA/HAI-1 system might contribute to lung fibrosis. Pro-HGF activation capacity from bronchoalveolar lavage (BAL) fluid was evaluated 3, 7, and 14 days after the intratracheal bleomycin injection (Bleo) in mice with or without thrombin. BAL fluid from naïve mice was used as control. HGFA and HAI-1 mRNA were evaluated by QPCR in the whole lung or by Western blot in BAL fluid. BAL fluid from control mice and Bleo mice activated pro-HGF in vitro at a similar degree. Thrombin accelerated proHGF activation by Bleo BAL on Day 3 and Day 7, but not on Day 14, or in control BAL. Incubation of pro-HGF with BAL from Bleo Day 3 and Day 7 mice increased phosphorylation of HGFR on A549 cells. Thrombin-induced pro-HGF activation was inhibited by an anti-HGFA antibody and accelerated by an anti-HAI-1 antibody. Active HGFA was not detected in control BAL and was strongly induced in Bleo BAL. HGFA concentrations were higher on Day 3 and Day 7 than on Day 14. HAI-1 was detected at low levels in control BAL and increased strongly by Day 3 with stable concentrations until Day 14. By demonstrating an imbalance between HGFA and HAI-1 expression in BAL fluid, our results highlight a defective thrombin-dependent proHGF activation system at the fibrotic phase of bleomycin-induced pulmonary fibrosis.
Collapse
Affiliation(s)
- Sophie Phin
- Inserm Unit 700, Faculté Xavier-Bichat, Paris, France
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Nayeri F, Nayeri T, Aili D, Brudin L, Liedberg B. Clinical impact of real-time evaluation of the biological activity and degradation of hepatocyte growth factor. Growth Factors 2008; 26:163-71. [PMID: 18569024 PMCID: PMC2562019 DOI: 10.1080/08977190802128083] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Hepatocyte growth factor (HGF) is essential for injury repair. Despite high HGF levels in chronic ulcers, up-regulation of HGF receptor in ulcer tissue and decreased biological activity of HGF in ulcer secretions have been observed. With a surface plasmon resonance-based method, we assessed the binding of HGF to antibodies, receptors, and the basement membrane and identified binding interactions that are indispensable for the biological activity of HGF. Recombinant HGF (rHGF) lots were tested for activity, structural integrity, and degradation, and the results were verified in an in vitro model of cell injury. Biologically active rHGF, as well as plasma from healthy volunteers, bound to heparan sulphate proteoglycan (HSPG) and to anti-HGF antibodies. Decreased binding to HSPG was the first event in rHGF degradation. This study established the feasibility of identifying patients with chronic inflammation who need exogenous HGF and of using ligand-binding assessment to evaluate rHGF lots for biological activity.
Collapse
Affiliation(s)
- Fariba Nayeri
- Division of Infectious Diseases, Faculty of Health Science, University Hospital, Linkoping, Sweden.
| | | | | | | | | |
Collapse
|
50
|
Zhang G, Eddy AA. Urokinase and its receptors in chronic kidney disease. FRONTIERS IN BIOSCIENCE : A JOURNAL AND VIRTUAL LIBRARY 2008; 13:5462-78. [PMID: 18508599 PMCID: PMC3142275 DOI: 10.2741/3093] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review focuses on the role of the serine protease urokinase-type plasminogen activator and its high affinity receptor uPAR/CD87 in chronic kidney disease (CKD) progression. An emerging theme is their organ- and site-specific effects. In addition to tubules, uPA is produced by macrophages and fibroblasts in CKD. By activating hepatocyte growth factor and degrading fibrinogen uPA may have anti-fibrotic effects. However renal fibrosis was similar between uPA wild-type and knockout mice in experimental CKD. The uPAR is expressed by renal parenchymal cells and inflammatory cells in a variety of kidney diseases. Such expression appears anti-fibrotic based on studies in uPAR-deficient mice. In CKD uPAR expression is associated with higher uPA activity but its most important effect appears to be due to effects on cell recruitment and migration that involve interactions with a variety of co-receptors and chemoattractant effects of soluble uPAR. Vitronectin and high molecular weight kininogen are alternate uPAR ligands, and receptors in addition to uPAR may also bind directly to uPA and activate cell signaling pathways.
Collapse
Affiliation(s)
- Guoqiang Zhang
- University of Washington and Children's Hospital and Regional Medical Center, Division of Nephrology, 4800 Sand Point Way NE, Seattle, WA 98105, USA
| | | |
Collapse
|