Current models of pulmonary fibrosis for future drug discovery efforts.
INTRODUCTION
Pulmonary fibrosis includes several lung disorders characterized by progressive fibrosis, of which idiopathic pulmonary fibrosis (IPF) is a particularly severe form with a median survival time of 3-5 years after diagnosis. Although numerous compounds have shown efficacy in attenuating pulmonary fibrosis using animal models, only a few compounds have shown their beneficial effects for IPF in clinical trials. Thus, there is an emergent need to improve the preclinical development process to better identify, characterize and select clinically useful targets.


AREAS COVERED
In this review, the authors extensively describe current models of pulmonary fibrosis, including rodent models, ex vivo models, and in vitro models.


EXPERT OPINION
Based upon our current understanding, improving the identification and characterization of clinically relevant molecules or pathways responsible for progressive fibrotic diseases and use of the appropriate preclinical model system to test these will likely be required to improve the drug development pipeline for pulmonary fibrosis. Combination with appropriate preclinical models with ex vivo (precision-cut lung slices) or in vitro models would be beneficial for high-throughput drug discovery or validation of drug effects.
['Yanagihara|Toyoshi|T|0000-0002-2212-0631', 'Chong|Sy Giin|SG|', 'Vierhout|Megan|M|', 'Hirota|Jeremy A|JA|', 'Ask|Kjetil|K|', 'Kolb|Martin|M|']
D000818:Animals D004195:Disease Models, Animal D000076722:Drug Development D055808:Drug Discovery D004353:Drug Evaluation, Preclinical D057166:High-Throughput Screening Assays D006801:Humans D054990:Idiopathic Pulmonary Fibrosis D011658:Pulmonary Fibrosis D012720:Severity of Illness Index D015996:Survival Rate
Fibrosis cell culture experimental models tissue