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The deubiquitinating enzyme USP14 controls ciliogenesis and hedgehog signalling
- The deubiquitinating enzyme USP14 controls ciliogenesis and hedgehog signalling
- Massa, Filomena; Tammaro, Roberta; Prado, Miguel A; Cesana, Marcella; Lee, Byung Hoon; Finley, Daniel; Franco, Brunella; Morleo, Manuela
- DGIST Authors
- Lee, Byung Hoon
- Issue Date
- Human Molecular Genetics, 28(5), 764-777
- Article Type
- POLYCYSTIC KIDNEY-DISEASE; CELL-CYCLE; INTRAFLAGELLAR TRANSPORT; PRIMARY CILIUM; REGULATING HEDGEHOG; JOUBERT SYNDROME; KIF7 MUTATION; MOUSE MODEL; PROTEIN; LOCALIZATION
- Primary cilia are hair-like organelles that play crucial roles in vertebrate development, organogenesis and when dysfunctional result in pleiotropic human genetic disorders called ciliopathies, characterized by overlapping phenotypes, such as renal and hepatic cysts, skeletal defects, retinal degeneration and central nervous system malformations. Primary cilia act as communication hubs to transfer extracellular signals into intracellular responses and are essential for Hedgehog (Hh) signal transduction in mammals. Despite the renewed interest in this ancient organelle of growing biomedical importance, the molecular mechanisms that trigger cilia formation, extension and ciliary signal transduction are still not fully understood. Here we provide, for the first time, evidence that the deubiquitinase ubiquitin-specific protease-14 (Usp14), a major regulator of the ubiquitin proteasome system (UPS), controls ciliogenesis, cilia elongation and Hh signal transduction. Moreover, we show that pharmacological inhibition of Usp14 positively affects Hh signal transduction in a model of autosomal dominant polycystic kidney disease. These findings provide new insight into the spectrum of action of UPS in cilia biology and may provide novel opportunities for therapeutic intervention in human conditions associated with ciliary dysfunction.
- Oxford University Press
- Related Researcher
Lab of Protein Homeostasis and Drug Discovery
Ubiquitin-proteasome system; Protein homeostasis; Small-molecule chemical screening and drug discovery in human disease
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- Department of New BiologyLab of Protein Homeostasis and Drug Discovery1. Journal Articles
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