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Cunningham, Peter S.; Meijer, Peter; Nazgiewicz, Alicja; Anderson, Simon G.; Borthwick, Lee A.; Bagnall, James; Kitchen, Gareth B.; Lodyga, Monika; Begley, Nicola; Venkateswaran, Rajamiyer V.; Shah, Rajesh; Mercer, Paul F.; Durrington, Hannah J.; Henderson, Neil C.; Piper-Hanley, Karen; Fisher, Andrew J.; Chambers, Rachel C.; Bechtold, David A.; Gibbs, Julie E.; Loudon, Andrew S.; Rutter, Martin K.; Hinz, Boris; Ray, David W.; Blaikley, John F.
Proceedings of the National Academy of Sciences - PNAS, 01/2020, Letnik: 117, Številka: 2Journal Article
Pulmonary inflammatory responses lie under circadian control; however, the importance of circadian mechanisms in the underlying fibrotic phenotype is not understood. Here, we identify a striking change to these mechanisms resulting in a gain of amplitude and lack of synchrony within pulmonary fibrotic tissue. These changes result from an infiltration of mesenchymal cells, an important cell type in the pathogenesis of pulmonary fibrosis. Mutation of the core clock protein REVERBα in these cells exacerbated the development of bleomycin-induced fibrosis, whereas mutation of REVERBα in club or myeloid cells had no effect on the bleomycin phenotype. Knockdown of REVERBα revealed regulation of the little-understood transcription factor TBPL1. Both REVERBα and TBPL1 altered integrinβ1 focal-adhesion formation, resulting in increased myofibroblast activation. The translational importance of our findings was established through analysis of 2 human cohorts. In the UK Biobank, circadian strain markers (sleep length, chronotype, and shift work) are associated with pulmonary fibrosis, making them risk factors. In a separate cohort, REVERBα expression was increased in human idiopathic pulmonary fibrosis (IPF) lung tissue. Pharmacological targeting of REVERBα inhibited myofibroblast activation in IPF fibroblasts and collagen secretion in organotypic cultures from IPF patients, thus suggesting that targeting of REVERBα could be a viable therapeutic approach.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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