title: Mechanisms of Lung Fibrosis Resolution.
abstract: Fibrogenesis involves a dynamic interplay between factors that promote the biosynthesis and deposition of extracellular matrix along with pathways that degrade the extracellular matrix and eliminate the primary effector cells. Opposing the often held perception that fibrotic tissue is permanent, animal studies and clinical data now demonstrate the highly plastic nature of organ fibrosis that can, under certain circumstances, regress. This review describes the current understanding of the mechanisms whereby the lung is known to resolve fibrosis focusing on degradation of the extracellular matrix, removal of myofibroblasts, and the role of inflammatory cells. Although there are significant gaps in understanding lung fibrosis resolution, accelerated improvements in biotechnology and bioinformatics are expected to improve the understanding of these mechanisms and have high potential to lead to novel and effective restorative therapies in the treatment not only of pulmonary fibrosis, but also of a wide-ranging spectrum of chronic disorders.
authors.affiliation: Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
authors.forename: Stephan W
authors.initials: SW
authors.lastname: Glasser
authors.affiliation: Division of Pediatric Respiratory Medicine, University of California-San Diego, La Jolla, California; Division of Respiratory Medicine, Rady Children's Hospital of San Diego, San Diego, California.
authors.forename: James S
authors.initials: JS
authors.lastname: Hagood
authors.affiliation: Division of Pediatric Respiratory Medicine, University of California-San Diego, La Jolla, California.
authors.forename: Simon
authors.initials: S
authors.lastname: Wong
authors.affiliation: Division of Pulmonary, Critical Care, and Sleep Medicine, University of California-San Diego, La Jolla, California.
authors.forename: Carmen A
authors.initials: CA
authors.lastname: Taype
authors.affiliation: Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
authors.forename: Satish K
authors.initials: SK
authors.lastname: Madala
authors.affiliation: Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio. Electronic address: william.hardie@cchmc.org.
authors.forename: William D
authors.initials: WD
authors.lastname: Hardie
mesh_terms: D000818:Animals; D003094:Collagen / Q000502:physiology; D004798:Enzymes / Q000502:physiology; D005109:Extracellular Matrix / Q000378:metabolism* / Q000502:physiology; D006801:Humans; D008247:Lysosomes / Q000378:metabolism; D051379:Mice; D023421:Models, Animal; D059748:Proteolysis; D011658:Pulmonary Fibrosis / Q000378:metabolism / Q000503:physiopathology*
chemical_list: D004798:Enzymes; D003094:Collagen