Title |
miR-155 in the progression of lung fibrosis in systemic sclerosis
|
---|---|
Published in |
Arthritis Research & Therapy, July 2016
|
DOI | 10.1186/s13075-016-1054-6 |
Pubmed ID | |
Authors |
Romy B. Christmann, Alicia Wooten, Percival Sampaio-Barros, Claudia L. Borges, Carlos R. R. Carvalho, Ronaldo A. Kairalla, Carol Feghali-Bostwick, Jessica Ziemek, Yu Mei, Salma Goummih, Jiangning Tan, Diana Alvarez, Daniel J. Kass, Mauricio Rojas, Thiago Lemos de Mattos, Edwin Parra, Giuseppina Stifano, Vera L. Capelozzi, Robert W. Simms, Robert Lafyatis |
Abstract |
MicroRNA (miRNA) control key elements of mRNA stability and likely contribute to the dysregulated lung gene expression observed in systemic sclerosis associated interstitial lung disease (SSc-ILD). We analyzed the miRNA gene expression of tissue and cells from patients with SSc-ILD. A chronic lung fibrotic murine model was used. RNA was isolated from lung tissue of 12 patients with SSc-ILD and 5 controls. High-resolution computed tomography (HRCT) was performed at baseline and 2-3 years after treatment. Lung fibroblasts and peripheral blood mononuclear cells (PBMC) were isolated from healthy controls and patients with SSc-ILD. miRNA and mRNA were analyzed by microarray, quantitative polymerase chain reaction, and/or Nanostring; pathway analysis was performed by DNA Intelligent Analysis (DIANA)-miRPath v2.0 software. Wild-type and miR-155 deficient (miR-155ko) mice were exposed to bleomycin. Lung miRNA microarray data distinguished patients with SSc-ILD from healthy controls with 185 miRNA differentially expressed (q < 0.25). DIANA-miRPath revealed 57 Kyoto Encyclopedia of Genes and Genomes pathways related to the most dysregulated miRNA. miR-155 and miR-143 were strongly correlated with progression of the HRCT score. Lung fibroblasts only mildly expressed miR-155/miR-21 after several stimuli. miR-155 PBMC expression strongly correlated with lung function tests in SSc-ILD. miR-155ko mice developed milder lung fibrosis, survived longer, and weaker lung induction of several genes after bleomycin exposure compared to wild-type mice. miRNA are dysregulated in the lungs and PBMC of patients with SSc-ILD. Based on mRNA-miRNA interaction analysis and pathway tools, miRNA may play a role in the progression of the disease. Our findings suggest that targeting miR-155 might provide a novel therapeutic strategy for SSc-ILD. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Singapore | 1 | 17% |
Italy | 1 | 17% |
United Kingdom | 1 | 17% |
Unknown | 3 | 50% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 3 | 50% |
Science communicators (journalists, bloggers, editors) | 3 | 50% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 81 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 12 | 15% |
Researcher | 11 | 14% |
Student > Master | 11 | 14% |
Student > Bachelor | 6 | 7% |
Student > Doctoral Student | 5 | 6% |
Other | 17 | 21% |
Unknown | 19 | 23% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 24 | 30% |
Biochemistry, Genetics and Molecular Biology | 12 | 15% |
Immunology and Microbiology | 8 | 10% |
Nursing and Health Professions | 3 | 4% |
Neuroscience | 3 | 4% |
Other | 9 | 11% |
Unknown | 22 | 27% |