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Pathogenesis, current treatments and future directions for idiopathic pulmonary fibrosis.

ABSTRACT: Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial lung disease (ILD) of unknown origin characterized by epithelial cell dysfunctions, accumulation of fibroblasts and myofibroblasts and relentless deposition of extracellular matrix (ECM). Improved diagnostic accuracy and better trial design have provided important insights from recent clinical trials. Perhaps the most important insight was the realization that 'standard therapy' was actually harmful! This review summarizes the current understanding of the cell types that are altered in IPF and the pathogenic mechanisms that have been identified. It also reviews recent clinical trial results and interpretations. Finally, we highlight attractive biologic targets and therapies in development with recommendations for future therapeutic avenues.

SUBMITTER: Loomis-King H

PROVIDER: S-EPMC3686907 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature

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Pathogenesis, current treatments and future directions for idiopathic pulmonary fibrosis.

Loomis-King Hillary H Flaherty Kevin R KR Moore Bethany B BB

Current opinion in pharmacology 20130418 3

Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial lung disease (ILD) of unknown origin characterized by epithelial cell dysfunctions, accumulation of fibroblasts and myofibroblasts and relentless deposition of extracellular matrix (ECM). Improved diagnostic accuracy and better trial design have provided important insights from recent clinical trials. Perhaps the most important insight was the realization that 'standard therapy' was actually harmful! This review summarizes the cur ...[more]

PMID: 23602652

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Project description:BackgroundIdiopathic pulmonary fibrosis (IPF) is a chronic, progressive disease characterized by the aberrant accumulation of fibrotic tissue in the lungs parenchyma, associated with significant morbidity and poor prognosis. This review will present the substantial advances achieved in the understanding of IPF pathogenesis and in the therapeutic options that can be offered to patients, and will address the issues regarding diagnosis and management that are still open.Main bodyOver the last two decades much has been clarified about the pathogenic pathways underlying the development and progression of the lung scarring in IPF. Sustained alveolar epithelial micro-injury and activation has been recognised as the trigger of several biological events of disordered repair occurring in genetically susceptible ageing individuals. Despite multidisciplinary team discussion has demonstrated to increase diagnostic accuracy, patients can still remain unclassified when the current diagnostic criteria are strictly applied, requiring the identification of a Usual Interstitial Pattern either on high-resolution computed tomography scan or lung biopsy. Outstanding achievements have been made in the management of these patients, as nintedanib and pirfenidone consistently proved to reduce the rate of progression of the fibrotic process. However, many uncertainties still lie in the correct use of these drugs, ranging from the initial choice of the drug, the appropriate timing for treatment and the benefit-risk ratio of a combined treatment regimen. Several novel compounds are being developed in the perspective of a more targeted therapeutic approach; in the meantime, the supportive care of these patients and their carers should be appropriately prioritized, and greater efforts should be made toward the prompt identification and management of relevant comorbidities.ConclusionsBuilding on the advances in the understanding of IPF pathobiology, the further investigation of the role of gene variants, epigenetic alterations and other molecular biomarkers reflecting disease activity and behaviour will hopefully enable earlier and more confident diagnosis, improve disease phenotyping and support the development of novel agents for personalized treatment of IPF.

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Pathogenesis, current treatments and future directions for idiopathic pulmonary fibrosis.

Publications

Pathogenesis, current treatments and future directions for idiopathic pulmonary fibrosis.

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