1
|
Karampitsakos T, Spagnolo P, Mogulkoc N, Wuyts WA, Tomassetti S, Bendstrup E, Molina-Molina M, Manali ED, Unat ÖS, Bonella F, Kahn N, Kolilekas L, Rosi E, Gori L, Ravaglia C, Poletti V, Daniil Z, Prior TS, Papanikolaou IC, Aso S, Tryfon S, Papakosta D, Tzilas V, Balestro E, Papiris S, Antoniou K, Bouros D, Wells A, Kreuter M, Tzouvelekis A. Lung cancer in patients with idiopathic pulmonary fibrosis: A retrospective multicentre study in Europe. Respirology 2023; 28:56-65. [PMID: 36117239 DOI: 10.1111/resp.14363] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 08/18/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVE There remains a paucity of large databases for patients with idiopathic pulmonary fibrosis (IPF) and lung cancer. We aimed to create a European registry. METHODS This was a multicentre, retrospective study across seven European countries between 1 January 2010 and 18 May 2021. RESULTS We identified 324 patients with lung cancer among 3178 patients with IPF (prevalence = 10.2%). By the end of the 10 year-period following IPF diagnosis, 26.6% of alive patients with IPF had been diagnosed with lung cancer. Patients with IPF and lung cancer experienced increased risk of all-cause mortality than IPF patients without lung cancer (HR: 1.51, [95% CI: 1.22-1.86], p < 0.0001). All-cause mortality was significantly lower for patients with IPF and lung cancer with a monocyte count of either <0.60 or 0.60-<0.95 K/μl than patients with monocyte count ≥0.95 K/μl (HR [<0.60 vs. ≥0.95 K/μl]: 0.35, [95% CI: 0.17-0.72], HR [0.60-<0.95 vs. ≥0.95 K/μl]: 0.42, [95% CI: 0.21-0.82], p = 0.003). Patients with IPF and lung cancer that received antifibrotics presented with decreased all cause-mortality compared to those who did not receive antifibrotics (HR: 0.61, [95% CI: 0.42-0.87], p = 0.006). In the adjusted model, a significantly lower proportion of surgically treated patients with IPF and otherwise technically operable lung cancer experienced all-cause mortality compared to non-surgically treated patients (HR: 0.30 [95% CI: 0.11-0.86], p = 0.02). CONCLUSION Lung cancer exerts a dramatic impact on patients with IPF. A consensus statement for the management of patients with IPF and lung cancer is sorely needed.
Collapse
Affiliation(s)
| | - Paolo Spagnolo
- Respiratory Disease Unit, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Nesrin Mogulkoc
- Department of Pulmonology, Ege University Hospital, Izmir, Turkey
| | - Wim A Wuyts
- Unit of Interstitial Lung Diseases, Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
| | - Sara Tomassetti
- Department of Clinical and Experimental Medicine, Interventional Pulmonology Unit, Careggi University Hospital Florence, Florence, Italy
| | - Elisabeth Bendstrup
- Center for Rare Lung Diseases, Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | - Maria Molina-Molina
- Respiratory Department, Unit of Interstitial Lung Diseases, Hospital Universitario de Bellvitge, Barcelona, Spain
| | - Effrosyni D Manali
- 2nd Pulmonary Medicine Department, 'ATTIKON' University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Ömer Selim Unat
- Department of Pulmonology, Ege University Hospital, Izmir, Turkey
| | - Francesco Bonella
- Center for Interstitial and Rare Lung Diseases, Pneumonology Department, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany
| | - Nicolas Kahn
- Center for Interstitial and Rare Lung Diseases, Department of Pneumology, Thoraxklinik-University Clinic Heidelberg and German Center for Lung Research, Heidelberg, Germany
| | - Lykourgos Kolilekas
- 7th Department of Respiratory Medicine, Hospital for Thoracic Diseases, 'SOTIRIA', Athens, Greece
| | - Elisabetta Rosi
- Department of Clinical and Experimental Medicine, Interventional Pulmonology Unit, Careggi University Hospital Florence, Florence, Italy
| | - Leonardo Gori
- Department of Clinical and Experimental Medicine, Interventional Pulmonology Unit, Careggi University Hospital Florence, Florence, Italy
| | - Claudia Ravaglia
- Thoracic Diseases Department, Morgagni Pierantoni Hospital, Forlì, Italy
| | - Venerino Poletti
- Thoracic Diseases Department, Morgagni Pierantoni Hospital, Forlì, Italy
| | - Zoe Daniil
- Department of Respiratory Medicine, Medical School, University of Thessaly, Larissa, Greece
| | - Thomas Skovhus Prior
- Center for Rare Lung Diseases, Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | | | - Samantha Aso
- Respiratory Department, Unit of Interstitial Lung Diseases, Hospital Universitario de Bellvitge, Barcelona, Spain
| | - Stavros Tryfon
- Pulmonary Clinic, NHS General Hospital 'G. Papanikolaou', Thessaloniki, Greece
| | - Despoina Papakosta
- Pulmonary Department, 'G Papanikolaou' General Hospital, Thessaloniki, Greece.,Aristotle University of Thessaloniki Medical School, Thessaloniki, Greece
| | - Vasillios Tzilas
- First Academic Department of Pneumonology, Hospital for Thoracic Diseases, 'SOTIRIA', Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Elisabetta Balestro
- Respiratory Disease Unit, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Spyridon Papiris
- 2nd Pulmonary Medicine Department, 'ATTIKON' University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Katerina Antoniou
- Department of Thoracic Medicine, Laboratory of Molecular and Cellular Pneumonology, Medical School, University of Crete, Crete, Greece
| | - Demosthenes Bouros
- First Academic Department of Pneumonology, Hospital for Thoracic Diseases, 'SOTIRIA', Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Athol Wells
- Interstitial Lung Disease Unit, Ιmperial College London, Royal Brompton and Harefield, London, UK
| | - Michael Kreuter
- Center for Interstitial and Rare Lung Diseases, Department of Pneumology, Thoraxklinik-University Clinic Heidelberg and German Center for Lung Research, Heidelberg, Germany
| | - Argyris Tzouvelekis
- Department of Respiratory Medicine, University Hospital of Patras, Patras, Greece
| |
Collapse
|
2
|
Vietri L, Cameli P, Perruzza M, Cekorja B, Bergantini L, d'Alessandro M, Refini RM, Pieroni M, Fossi A, Bennett D, Spalletti M, Mazzei MA, Sestini P, Rottoli P, Bargagli E. Pirfenidone in idiopathic pulmonary fibrosis: real-life experience in the referral centre of Siena. Ther Adv Respir Dis 2021; 14:1753466620906326. [PMID: 32066332 PMCID: PMC7029533 DOI: 10.1177/1753466620906326] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background: Idiopathic pulmonary fibrosis (IPF) is the most common idiopathic interstitial pneumonia and has a median survival after diagnosis of 2–5 years. Pirfenidone is the first approved antifibrotic drug for the treatment of IPF. Here we report the functional progress, side effects and survival data of a population of patients with IPF, diagnosed at our centre and treated with pirfenidone. Methods: We enrolled 91 patients with IPF (71 males) treated with pirfenidone. Clinical, survival and functional details were collected retrospectively at start of therapy and after 12, 24, 36 and 48 months of treatment. Lung function tests at least 12 months before starting therapy were available for 40 patients and were entered in the database, as well as side effects. Results: During the observation period (922 ± 529 days), 27 patients died, 5 patients underwent lung transplant and 10 patients interrupted therapy due to adverse events or IPF progression. The median survival was 1606 days. There was a significant reduction in disease progression rate, as measured by trend of forced vital capacity, after 1 year of therapy with respect to before treatment (p = 0.0085). Forced vital capacity reduction rate was progressively higher in the subsequent years of treatment. Treatment-related side effects were reported in 25 patients and were predominantly mild. Overall, four patients discontinued therapy due to severe photosensitivity. Conclusions: Our findings confirm the efficacy of pirfenidone in reducing functional progression of IPF and its excellent safety profile in a real-life setting. This study, designed on a long-term follow up, contributes to the growing evidence on safety, tolerability and efficacy of pirfenidone in IPF. The reviews of this paper are available via the supplemental material section.
Collapse
Affiliation(s)
- Lucia Vietri
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Paolo Cameli
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, Viale Bracci, Siena, 53100, Italy
| | - Marco Perruzza
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Behar Cekorja
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Laura Bergantini
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Miriana d'Alessandro
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Rosa Metella Refini
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Maria Pieroni
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Antonella Fossi
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - David Bennett
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Marco Spalletti
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Maria Antonietta Mazzei
- Department of Medical and Surgical Sciences and Neurosciences, Diagnostic Imaging Unit, University of Siena, AOUS, Siena, Italy
| | - Piersante Sestini
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Paola Rottoli
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| | - Elena Bargagli
- Department of Medical and Surgical Sciences and Neurosciences, Respiratory Disease and Lung Transplant Unit, University of Siena, AOUS, Siena, Italy
| |
Collapse
|
3
|
Yiqi Yangyin Huoxue Method in Treating IdiopathicPulmonary Fibrosis: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:8391854. [PMID: 33062025 PMCID: PMC7548958 DOI: 10.1155/2020/8391854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 07/19/2020] [Accepted: 07/27/2020] [Indexed: 11/18/2022]
Abstract
Objective Idiopathic pulmonary fibrosis (IPF) is a common respiratory disease that can lead to respiratory failure in severe condition. Despite notable advances in its treatment, some patients show poor effect when treated with conventional western medicine (CWM). Traditional Chinese medicine with the Yiqi Yangyin Huoxue method (YQYYHXM) has been reported to be positive for IPF. In order to explore the effectiveness and safety of YQYYHXM in the treatment of IPF, we performed this meta-analysis. Method We searched six databases including Embase, Cochrane, PubMed, CNKI, Wan Fang, and VIP database from their inception to June 1, 2019, and then selected eight studies. Two reviewers independently conducted methodological evaluation and data analysis by the software RevMan 5.3.3 and Stata 12.0. Results The meta-analysis revealed that when YQYYHXM was adopted in combination with CWM, cough, chest pain, and shortness of breath of IPF patients improved significantly. After treatment with YQYYHXM combined with CWM, the SGRQ of IPF patients substantially enhanced. YQYYHXM also has positive effect on 6MWD and TLC, but the improvement on FVC was not obvious. In addition, YQYYHXM has no significance in improving PaO2. All the adverse events were reported in the control group. Conclusion YQYYHXM is more effective and safe as adjunctive treatment for patients with IPF. However, in the future, long-term, large-scale, and high-quality trials will be required to provide more convincing evidence of YQYYHXM due to some limitations of this review.
Collapse
|
4
|
Le Guellec S, Allimonnier L, Heuzé-Vourc’h N, Cabrera M, Ossant F, Pourchez J, Vecellio L, Plantier L. Low-Frequency Intrapulmonary Percussive Ventilation Increases Aerosol Penetration in a 2-Compartment Physical Model of Fibrotic Lung Disease. Front Bioeng Biotechnol 2020; 8:1022. [PMID: 32984287 PMCID: PMC7483496 DOI: 10.3389/fbioe.2020.01022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/04/2020] [Indexed: 11/13/2022] Open
Abstract
In patients with fibrotic pulmonary disease such as idiopathic pulmonary fibrosis (IPF), inhaled aerosols deposit mostly in the less affected region of the lungs, resulting in suboptimal pharmacokinetics of airway-delivered treatments. Refinement of aerosol delivery technique requires new models to simulate the major alterations of lung physiology associated with IPF, i.e., heterogeneously reduced lung compliance and increased airway caliber. A novel physical model of the respiratory system was constructed to simulate aerosol drug delivery in spontaneously breathing (negative pressure ventilation) IPF patients. The model comprises upper (Alberta ideal throat) and lower airway (plastic tubing) models and branches into two compartments (Michigan lung models) which differ in compliance and caliber of conducting airway. The model was able to reproduce the heterogeneous, compliance-dependent reduction in ventilation and aerosol penetration (using NaF as a model aerosol) seen in fibrotic lung regions in IPF. Of note, intrapulmonary percussive ventilation induced a 2-3-fold increase in aerosol penetration in the low-compliance/high airway caliber compartment of the model, demonstrating the responsiveness of the model to therapeutic intervention.
Collapse
Affiliation(s)
- Sandrine Le Guellec
- INSERM, Research Center for Respiratory Diseases, U1100, Tours, France
- DTF Aerodrug, Tours, France
- Université de Tours, Tours, France
| | - Laurine Allimonnier
- INSERM, Research Center for Respiratory Diseases, U1100, Tours, France
- Université de Tours, Tours, France
| | - Nathalie Heuzé-Vourc’h
- INSERM, Research Center for Respiratory Diseases, U1100, Tours, France
- Université de Tours, Tours, France
| | - Maria Cabrera
- INSERM, Research Center for Respiratory Diseases, U1100, Tours, France
- Université de Tours, Tours, France
| | | | - Jérémie Pourchez
- Mines Saint-Etienne, Univ. Lyon, Univ. Jean Monnet, INSERM, U1059 Sainbiose, Centre CIS, Saint-Etienne, France
| | - Laurent Vecellio
- INSERM, Research Center for Respiratory Diseases, U1100, Tours, France
- Université de Tours, Tours, France
| | - Laurent Plantier
- INSERM, Research Center for Respiratory Diseases, U1100, Tours, France
- Université de Tours, Tours, France
- CHRU de Tours, Service de Pneumologie et Explorations Fonctionnelles Respiratoires, Tours, France
| |
Collapse
|
5
|
Tzouvelekis A, Karampitsakos T, Kourtidou S, Bouros E, Tzilas V, Katsaras M, Antonou C, Dassiou M, Bouros D. Impact of Depression on Patients With Idiopathic Pulmonary Fibrosis. Front Med (Lausanne) 2020; 7:29. [PMID: 32118014 PMCID: PMC7020231 DOI: 10.3389/fmed.2020.00029] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/20/2020] [Indexed: 01/12/2023] Open
Abstract
Introduction: Depression is prevalent in patients with Idiopathic Pulmonary Fibrosis (IPF). The impact of depression on quality of life and its correlation with disease severity in patients with IPF has not been thoroughly evaluated on prospective studies. Patients and Methods: Between 2016 and 2017, we prospectively enrolled 101 patients (80 male, mean age (years) ± SD: 70.8 ± 8.1) with IPF (mean GAP score ± SD: 4.7 ± 1.8) without previous diagnosis of depression. Depressive symptoms were evaluated with Beck's depression inventory-II (BDI-II). Disease severity was evaluated with pulmonary function (FVC, DLCO) and exercise capacity measures. Symptom burden was assessed by cough and dyspnea scales. Health Related Quality of Life (HRQL) was assessed with two questionnaires. Results: Data for analysis was available from 98 patients (97%). Forty two patients (42.9%) presented with depressive symptoms scoring≥14. A significant association between depressive symptoms and measures of: 1) disease severity: a) GAP score: r = 0.32, p = 0.007, b) DLCO: r = -0.28, p = 0.007, c) 6MWD: r = -0.39, p = 0.017, 2) symptom burden: a) cough: r = -0.57, p < 0.001, b) dyspnea (Borg: r = 0.54, p < 0.001, mMRC: r = 0.55, p < 0.001, SOBQ: r = 0.57, p < 0.001 and 3) HRQL: a) SGRQ: (Total score: r = 0.68, p < 0.001, Activity Score: r = 0.60, p < 0.001, Impact score: r = 0.68, p < 0.001, Symptoms score: r = 0.60, p < 0.001, b) K-BILD: r = -0.66, p < 0.001), was identified. There was no statistically significant difference in BDI-II (p = 0.62) and SGRQ (p = 0.64) 1 year after treatment with antifibrotics. Conclusions: Patients with IPF and severe functional impairment tend to have increased risk for depression development and poor quality of life. Further prospective studies should investigate the role of antidepressant drug therapy in patients with IPF and comorbid depression.
Collapse
Affiliation(s)
- Argyris Tzouvelekis
- First Academic Department of Pneumonology, Medical School, Hospital for Diseases of the Chest Sotiria, National and Kapodistrian University of Athens, Athens, Greece
| | - Theodoros Karampitsakos
- First Academic Department of Pneumonology, Medical School, Hospital for Diseases of the Chest Sotiria, National and Kapodistrian University of Athens, Athens, Greece
| | - Sofia Kourtidou
- First Academic Department of Pneumonology, Medical School, Hospital for Diseases of the Chest Sotiria, National and Kapodistrian University of Athens, Athens, Greece
| | - Evangelos Bouros
- First Academic Department of Pneumonology, Medical School, Hospital for Diseases of the Chest Sotiria, National and Kapodistrian University of Athens, Athens, Greece
| | - Vasilios Tzilas
- First Academic Department of Pneumonology, Medical School, Hospital for Diseases of the Chest Sotiria, National and Kapodistrian University of Athens, Athens, Greece
| | - Matthaios Katsaras
- First Academic Department of Pneumonology, Medical School, Hospital for Diseases of the Chest Sotiria, National and Kapodistrian University of Athens, Athens, Greece
| | - Chrysoula Antonou
- First Academic Department of Pneumonology, Medical School, Hospital for Diseases of the Chest Sotiria, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Dassiou
- First Academic Department of Pneumonology, Medical School, Hospital for Diseases of the Chest Sotiria, National and Kapodistrian University of Athens, Athens, Greece
| | - Demosthenes Bouros
- First Academic Department of Pneumonology, Medical School, Hospital for Diseases of the Chest Sotiria, National and Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
6
|
Casanova N, Zhou T, Gonzalez-Garay ML, Rosas IO, Goldberg HJ, Ryter SW, Collard HR, El-Chemaly S, Flaherty KR, Hunninghake GM, Lasky JA, Lederer DJ, Machado RF, Martinez FJ, Noth I, Raghu G, Choi AMK, Garcia JGN. Low Dose Carbon Monoxide Exposure in Idiopathic Pulmonary Fibrosis Produces a CO Signature Comprised of Oxidative Phosphorylation Genes. Sci Rep 2019; 9:14802. [PMID: 31615996 PMCID: PMC6794274 DOI: 10.1038/s41598-019-50585-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 09/10/2019] [Indexed: 01/22/2023] Open
Abstract
Compelling preclinical studies indicate that low-dose carbon monoxide (CO) abrogates experimental lung fibrosis. We recently reported the results of a multicenter, double-blinded, clinical trial of inhaled CO in patients with idiopathic pulmonary fibrosis (IPF). Identifying no significantly changes in metalloproteinase-7 (MMP7) serum concentration, or secondary endpoints of physiologic measurements, hospitalization, death, or patient-reported outcomes. In the present study, we evaluated the effect of low dose CO exposure (100–200 ppm) for 12 weeks on genome-wide gene expression in peripheral blood mononuclear cells (PBMC) derived from these IPF study subjects. We conducted transcriptome profiling on 38 IPF subjects with time points available at 0, 12, and 24 weeks. Total RNA isolated from PBMCs was hybridized onto the Affymetrix Human Gene 2.0 ST Array. We identified 621 genes significantly upregulated in the 24-week CO exposed group compared with the 12-week. Pathway analysis demonstrated association with Oxidative Phosphorylation (adjusted P < 0.05). We identified a clear CO signature dominated with 23 oxidative phosphorylation-related genes (FDR <10%). We confirmed the expression of nine selected gene products using Nanostring’s nCounter analysis system. These findings suggest this signature may serve as a potential genomic biomarker for CO exposure and for potential titration of dosage to allow precision testing of therapies in future low dose CO therapeutic studies in IPF.
Collapse
Affiliation(s)
- Nancy Casanova
- Department of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Tong Zhou
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV, USA
| | | | - Ivan O Rosas
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Hilary J Goldberg
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Stefan W Ryter
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Harold R Collard
- Division of Pulmonary and Critical Care Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Souheil El-Chemaly
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Kevin R Flaherty
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Gary M Hunninghake
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Joseph A Lasky
- Pulmonary and Critical Care Medicine Section, Tulane University Medical School, New Orleans, LA, USA
| | - David J Lederer
- Division of Pulmonary and Critical Care Medicine, Columbia University Medical Center, New York, NY, USA
| | - Roberto F Machado
- Division of Pulmonary, Critical Care, Indiana University, Indianapolis, IN, USA
| | | | - Imre Noth
- Division of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, IL, USA
| | - Ganesh Raghu
- Division of Pulmonary and Critical Care Medicine, University of Washington Medical Center, Seattle, WA, USA
| | - Augustine M K Choi
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Joe G N Garcia
- Department of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA.
| |
Collapse
|
7
|
Karampitsakos T, Vraka A, Bouros D, Liossis SN, Tzouvelekis A. Biologic Treatments in Interstitial Lung Diseases. Front Med (Lausanne) 2019; 6:41. [PMID: 30931306 PMCID: PMC6425869 DOI: 10.3389/fmed.2019.00041] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 02/13/2019] [Indexed: 12/17/2022] Open
Abstract
Interstitial lung diseases (ILD) represent a group of heterogeneous parenchymal lung disorders with complex pathophysiology, characterized by different clinical and radiological patterns, ultimately leading to pulmonary fibrosis. A considerable proportion of these disease entities present with no effective treatment, as current therapeutic regimens only slow down disease progression, thus leaving patients, at best case, with considerable functional disability. Biologic therapies have emerged and are being investigated in patients with different forms of ILD. Unfortunately, their safety profile has raised many concerns, as evidence shows that they might cause or exacerbate ILD status in a subgroup of patients. This review article aims to summarize the current state of knowledge on their role in patients with ILD and highlight future perspectives.
Collapse
Affiliation(s)
- Theodoros Karampitsakos
- 5th Department of Pneumonology, General Hospital for Thoracic Diseases Sotiria, Athens, Greece
| | - Argyro Vraka
- First Academic Department of Pneumonology, Hospital for Thoracic Diseases, Sotiria Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Demosthenes Bouros
- First Academic Department of Pneumonology, Hospital for Thoracic Diseases, Sotiria Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Stamatis-Nick Liossis
- Division of Rheumatology, Department of Internal Medicine, Patras University Hospital, University of Patras Medical School, Patras, Greece
| | - Argyris Tzouvelekis
- First Academic Department of Pneumonology, Hospital for Thoracic Diseases, Sotiria Medical School, National and Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
8
|
Lu Y, Zhang T, Shan S, Wang S, Bian W, Ren T, Yang D. MiR-124 regulates transforming growth factor-β1 induced differentiation of lung resident mesenchymal stem cells to myofibroblast by repressing Wnt/β-catenin signaling. Dev Biol 2019; 449:115-121. [PMID: 30802451 DOI: 10.1016/j.ydbio.2019.02.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 02/07/2019] [Accepted: 02/19/2019] [Indexed: 02/06/2023]
Abstract
Lung resident mesenchymal stem cells (LR-MSCs) contribute to the progression of idiopathic pulmonary fibrosis (IPF). We aimed to investigate the molecular mechanism underlying LR-MSCs regulation upon transforming growth factor (TGF)-β1 stimulation. We induced fibrogenic differentiation of LR-MSCs isolated from mice by TGF-β1. Several stem cell markers were detected by flow cytometric analysis. Protein expression level was tested by Western blotting and mRNA level was detected by quantitative real-time polymerase chain reaction (qRT-PCR). Cell viability, proliferation and apoptosis were measured. TGF-β1 promoted fibrogenic differentiation of LR-MSCs and upregulated β-catenin and p-glycogen synthase kinase-3β, suggesting the activation of Wnt signaling. MicroRNA (MiR)-124-3p was significantly upregulated in TGF-β1 treated LR-MSCs compared to untreated cells. Intriguingly, silence of miR-124 reversed the TGF-β1-induced changes in cell viability and proliferation, and also led to a decrease of cell apoptosis. Additionally, in miR-124 silenced cells, α-smooth muscle actin, collagen I and fibronectin were downregulated compared to control cells. We ultimately identified a new target of miR-124, AXIN1, which was repressed by miR-124. In conclusion, miR-124 regulates AXIN1 to activate Wnt signaling and therefore plays a crucial role in the TGF-β1-induced fibrogenic differentiation.
Collapse
Affiliation(s)
- Yi Lu
- Department of Respiratory Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No 600 Yishan Road, Shanghai 200233, China
| | - Tiefeng Zhang
- Department of Respiratory Medicine, Northern Branch of Renji Hospital, No 1058 Huanzhen Road, Shanghai 200444, China
| | - Shan Shan
- Department of Respiratory Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No 600 Yishan Road, Shanghai 200233, China
| | - Shenqi Wang
- Department of Respiratory Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No 600 Yishan Road, Shanghai 200233, China
| | - Wei Bian
- Department of Respiratory Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No 600 Yishan Road, Shanghai 200233, China
| | - Tao Ren
- Department of Respiratory Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No 600 Yishan Road, Shanghai 200233, China.
| | - Danrong Yang
- Department of Respiratory Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No 600 Yishan Road, Shanghai 200233, China.
| |
Collapse
|
9
|
Hollin IL, Dimmock AEF, Bridges JFP, Danoff SK, Bascom R. Collecting patient preference information using a Clinical Data Research Network: demonstrating feasibility with idiopathic pulmonary fibrosis. Patient Prefer Adherence 2019; 13:795-804. [PMID: 31190761 PMCID: PMC6529600 DOI: 10.2147/ppa.s201632] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 04/10/2019] [Indexed: 11/30/2022] Open
Abstract
Purpose: Rare diseases present challenges for accessing patient populations to conduct surveys. Clinical Data Research Networks (CDRNs) offer an opportunity to overcome those challenges by providing infrastructure for accessing patients and sharing data. This study aims to demonstrate the feasibility of collecting patient preference information for a rare disease in a CDRN, using idiopathic pulmonary fibrosis as proof of concept. Patients and methods: Utilizing a cohort of idiopathic pulmonary fibrosis (IPF) patients across a CDRN, a discrete choice experiment was administered via electronic and paper methods to collect patient preference information about benefits and risks of two therapeutic options. Survey data were augmented with data from electronic health records and patient-reported outcome surveys. Results: Thirty-three patients completed the preference experiment. The amount of choice attributable to a benefit of slowing of decline in lung function was 36%. Improving efficacy in terms of lung function was 2.16 times as important as improving efficacy in terms of shortness of breath. In terms of side effects, decreasing risk of gastrointestinal problems was 2.6 times as important as decreasing risk of sun sensitivity and 2.4 times as important as decreasing risk of liver injury. In terms of benefit-risk trade-offs, improving efficacy in terms of lung function was 1.6 times as important as decreasing risk of gastrointestinal problems. Conclusion: This study used IPF as a proof of concept to demonstrate the feasibility of collecting patient preference information in a CDRN. The network was advantageous to the study of patient preferences. Future research should continue to explore pathways for the collection and use of patient preference information across networks. The power of consolidated collection efforts may lead to the ability to use preference data to inform decision-making at the regional, specialty, or individual encounter level.
Collapse
Affiliation(s)
- Ilene L Hollin
- Department of Health Services Administration and Policy, Temple University College of Public Health, Philadelphia, PA, USA
- Correspondence: Ilene L HollinDepartment of Health Services Administration and Policy, Temple University College of Public Health, 1301 Cecil B. Moore Ave., #537, Philadelphia, PA19122, USATel +1 215 204 9164Fax +1 215 204 5958Email
| | - Anne EF Dimmock
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Penn State University College of Medicine, Hershey, PA, USA
| | - John FP Bridges
- Departments of Biomedical Informatics and Surgery, Ohio State University College of Medicine, Columbus, OH, USA
| | - Sonye K Danoff
- Division of Pulmonary Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rebecca Bascom
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Penn State University College of Medicine, Hershey, PA, USA
| |
Collapse
|
10
|
Tzouvelekis A, Toonkel R, Karampitsakos T, Medapalli K, Ninou I, Aidinis V, Bouros D, Glassberg MK. Mesenchymal Stem Cells for the Treatment of Idiopathic Pulmonary Fibrosis. Front Med (Lausanne) 2018; 5:142. [PMID: 29868594 PMCID: PMC5962715 DOI: 10.3389/fmed.2018.00142] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/25/2018] [Indexed: 12/24/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is an inexorably progressive lung disease of unknown origin. Prognosis is poor, with limited treatment options available, and the median survival remains just 3-5 years. Despite the use of pirfenidone and nintedanib for the treatment of IPF, curative therapies remain elusive and mortality remains high. Regenerative medicine and the use of cell-based therapies has recently emerged as a potential option for various diseases. Promising results of preclinical studies using mesenchymal stem cells (MSCs) suggest that they may represent a potential therapeutic option for the treatment of chronic lung diseases including IPF. Encouraging results of Phase 1 studies of MSCs various have reduced safety concerns. Nonetheless, there is still a pressing need for exploratory biomarkers and interval end-points in the context of MSCs investigation. This review intends to summarize the current state of knowledge for stem cells in the experimental and clinical setting of IPF, present important safety and efficacy issues, highlight future challenges and address the need for large, multicenter clinical trials coupled with realistic end-points, including biomarkers, to assess treatment efficacy.
Collapse
Affiliation(s)
- Argyrios Tzouvelekis
- First Academic Respiratory Department, Sotiria General Hospital for Thoracic Diseases, University of Athens, Athens, Greece.,Division of Immunology, Alexander Fleming Biomedical Sciences Research Center, Athens, Greece
| | - Rebecca Toonkel
- Department of Medicine, Florida International University Herbert Wertheim College of Medicine, Miami, FL, United States
| | - Theodoros Karampitsakos
- First Academic Respiratory Department, Sotiria General Hospital for Thoracic Diseases, University of Athens, Athens, Greece
| | - Kantha Medapalli
- Department of Medicine, Florida International University Herbert Wertheim College of Medicine, Miami, FL, United States.,Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Ioanna Ninou
- Division of Immunology, Alexander Fleming Biomedical Sciences Research Center, Athens, Greece
| | - Vasilis Aidinis
- Division of Immunology, Alexander Fleming Biomedical Sciences Research Center, Athens, Greece.,Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Demosthenes Bouros
- First Academic Respiratory Department, Sotiria General Hospital for Thoracic Diseases, University of Athens, Athens, Greece
| | - Marilyn K Glassberg
- Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, United States.,Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, United States
| |
Collapse
|
11
|
Guan C, Qiao S, Lv Q, Cao N, Wang K, Dai Y, Wei Z. Orally administered berberine ameliorates bleomycin-induced pulmonary fibrosis in mice through promoting activation of PPAR-γ and subsequent expression of HGF in colons. Toxicol Appl Pharmacol 2018; 343:1-15. [DOI: 10.1016/j.taap.2018.02.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/29/2018] [Accepted: 02/02/2018] [Indexed: 11/27/2022]
|
12
|
Tzouvelekis A, Karampitsakos T, Kontou M, Granitsas A, Malliou I, Anagnostopoulos A, Ntolios P, Tzilas V, Bouros E, Steiropoulos P, Chrysikos S, Dimakou K, Koulouris N, Bouros D. Safety and efficacy of nintedanib in idiopathic pulmonary fibrosis: A real-life observational study in Greece. Pulm Pharmacol Ther 2018; 49:61-66. [PMID: 29366978 DOI: 10.1016/j.pupt.2018.01.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 01/18/2018] [Accepted: 01/19/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Nintedanib represents an antifibrotic compound able to slow down disease progression of patients with idiopathic pulmonary fibrosis (IPF). OBJECTIVE To investigate the safety and efficacy of nintedanib in patients with IPF in a real-life setting. METHODS This was a multicentre, retrospective, observational, real-life study for patients with IPF receiving nintedanib between October 2014 and October 2016. RESULTS We identified 94 patients with IPF receiving nintedanib (72 males, mean age±SD: 73.8 ± 7.5, mean%FVC±SD = 68.1 ± 18.3, mean%DLCo±SD = 44.4 ± 14.5). Diarrhea (n = 52, 55.3%) was the most commonly reported adverse event. Twenty patients (21.2%) had to permanently discontinue nintedanib due to severe adverse events. In the 6-months follow-up, median decline in %FVC predicted and %DLCO predicted were 1.36 (95%Cl: 0 to 2.97) and 4.00 (95%Cl: 2.01 to 6.20), respectively, when deaths were censored and excluded from the analysis. At 12 months, mean%FVC±SD and mean%DLCo±SD were 64.5 ± 19.1 and 43.7 ± 15.4, respectively. With regards to mortality, 17 patients (18.1%) died over a study period of 730 days. CONCLUSION Nintedanib demonstrated an acceptable safety and efficacy profile in our real-world observational study. Prospective observational studies in the context of registries that collect well-defined supporting data over time are sorely needed to answer residual questions on drug's performance.
Collapse
Affiliation(s)
- Argyrios Tzouvelekis
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Greece; Division of Immunology, Biomedical Sciences Research Center "Alexander Fleming", Athens, Greece.
| | | | - Maria Kontou
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Greece
| | - Andreas Granitsas
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Greece
| | - Ioanna Malliou
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Greece
| | - Aris Anagnostopoulos
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Greece
| | - Paschalis Ntolios
- University Hospital of Alexandroupolis, Department of Pneumonology, Democritus University of Thrace, Greece
| | - Vasilios Tzilas
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Greece
| | - Evangelos Bouros
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Greece
| | - Paschalis Steiropoulos
- University Hospital of Alexandroupolis, Department of Pneumonology, Democritus University of Thrace, Greece
| | - Serafeim Chrysikos
- 5th Respiratory Department, Hospital for Diseases of the Chest, "Sotiria", Athens, Greece
| | - Katerina Dimakou
- 5th Respiratory Department, Hospital for Diseases of the Chest, "Sotiria", Athens, Greece
| | - Nikolaos Koulouris
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Greece
| | - Demosthenes Bouros
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Greece
| |
Collapse
|
13
|
Tzouvelekis A, Karampitsakos T, Ntolios P, Tzilas V, Bouros E, Markozannes E, Malliou I, Anagnostopoulos A, Granitsas A, Steiropoulos P, Dimakou K, Chrysikos S, Koulouris N, Bouros D. Longitudinal "Real-World" Outcomes of Pirfenidone in Idiopathic Pulmonary Fibrosis in Greece. Front Med (Lausanne) 2017; 4:213. [PMID: 29238708 PMCID: PMC5712559 DOI: 10.3389/fmed.2017.00213] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 11/13/2017] [Indexed: 12/23/2022] Open
Abstract
Background Pirfenidone is an antifibrotic compound able to slow down disease progression in patients with idiopathic pulmonary fibrosis (IPF). Objective To investigate the safety and efficacy of pirfenidone in patients with IPF in a real-life setting. Methods This was a multicenter, retrospective, real-life, observational study for patients with IPF receiving pirfenidone. Results We identified 92 patients with IPF receiving pirfenidone. Eighty patients (70 males and 10 females, mean age ± SD: 68.1 + 7.5, mean %FVC ± SD = 74.9 ± 17.2, mean %DLCO ± SD = 48.1 ± 16.9) were included in the analysis. Skin-related (25%) and gastrointestinal (17.5%) adverse events were the most common and led to drug discontinuation in 22.5% of cases. The majority (87%) of patients experienced side effects during the first 6 months of treatment. At 36 months, changes in %FVC and %DLCO were -9.25 ± 16.34 and -9.26 ± 15.26, respectively. At 6, 12, and 24 months after treatment initiation (n = 80, 60, and 26), 18, 15, and 5 patients (22.5, 25, and 19.2%) experienced significant (>10%) and 11, 3, and 3 patients (13.8, 5, and 11.5%) experienced marginal (5-10%) %FVC improvement; and 13, 6, and 1 patient (16.2, 10, and 3.9%) experienced marginal (-5 to -10%) and 20, 21, and 8 patients (25, 35, and 30.8%) experienced significant decline (<-10%) in %FVCpred. Median survival was 851 days, and 41 patients died during the study period. Conclusion Pirfenidone demonstrated an acceptable safety and therapeutic profile in patients with IPF on a longitudinal basis. Prospective observational registries are urgently needed to provide a real-world view of outcomes of pirfenidone in clinical practice.
Collapse
Affiliation(s)
- Argyrios Tzouvelekis
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest "Sotiria", Medical School, National and Kapodistrian University of Athens, Athens, Greece.,Division of Immunology, Biomedical Sciences Research Center "Alexander Fleming", Athens, Greece
| | | | - Paschalis Ntolios
- Department of Pneumonology, University Hospital of Alexandroupolis, Democritus University of Thrace, Komotini, Greece
| | - Vasilios Tzilas
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest "Sotiria", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Evangelos Bouros
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest "Sotiria", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Evangelos Markozannes
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest "Sotiria", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Ioanna Malliou
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest "Sotiria", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Aris Anagnostopoulos
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest "Sotiria", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Andreas Granitsas
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest "Sotiria", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Paschalis Steiropoulos
- Division of Immunology, Biomedical Sciences Research Center "Alexander Fleming", Athens, Greece
| | - Katerina Dimakou
- 5th Respiratory Department, Hospital for Diseases of the Chest "Sotiria", Athens, Greece
| | - Serafeim Chrysikos
- Department of Pneumonology, University Hospital of Alexandroupolis, Democritus University of Thrace, Komotini, Greece
| | - Nikolaos Koulouris
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest "Sotiria", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Demosthenes Bouros
- First Academic Department of Pneumonology, Hospital for Diseases of the Chest "Sotiria", Medical School, National and Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
14
|
Akter T, Atanelishvili I, Noguchi A, Silver RM, Bogatkevich GS. Establishment of an indirect ELISA for detection of the novel antifibrotic peptide M10. PLoS One 2017; 12:e0188588. [PMID: 29176766 PMCID: PMC5703532 DOI: 10.1371/journal.pone.0188588] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 11/09/2017] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE M10 is a ten amino acid peptide generated from the intracellular cytoplasmic tail of the hepatocyte growth factor (HGF) receptor c-Met following cleavage by caspase-3. Recently we reported that M10 interacts with Smad2 and demonstrates antifibrotic properties in vitro and in vivo and can be advanced into a novel antifibrotic remedy. The current study was undertaken to develop an immunoassay to measure M10 concentration in biological specimens. EXPERIMENTAL DESIGN An Indirect Enzyme-Linked Immunosorbent Assay (ELISA) for detection of M10 in biological fluids was developed using pharmaceutical grade synthetic M10 as a calibrator and commercially available anti-c-Met C12 antibody. RESULTS M10 ELISA specifically detected in plasma M10, but not a scrambled peptide, following a single intraperitoneal administration of M10 (1mg/kg) to mice. The detection limit was 9.6 ng/ml, and the measuring limit was between 15 ng/ml and 200 ng/ml. The recovery limits of M10 were between 80% and 120%; intra-assay coefficient of variation was between 5.3% and 6.3%; inter-assay coefficient of variation was between 5.0% and 8.0% over the buffer concentration tested in the range from 15 ng /ml to 250 ng /ml. The peak of M10 concentration following a single intraperitoneal injection (1mg/kg) was achieved within 6 hours and declined to minimal levels by 48 hours. The experimentally obtained half-life for M10 was comparable to the theoretically predicted half-life for M10. CONCLUSIONS We have established a highly sensitive ELISA to detect the antifibrotic peptide M10 in plasma samples, which should prove to be a novel tool to study the pharmacokinetics and efficacy of M10 in the treatment of fibroproliferative disorders.
Collapse
Affiliation(s)
- Tanjina Akter
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Ilia Atanelishvili
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Atsushi Noguchi
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
- Division of Rheumatology, Endocrinology and Nephrology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Richard M. Silver
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Galina S. Bogatkevich
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
- * E-mail:
| |
Collapse
|