Developmental signalling pathways in renal fibrosis: the roles of Notch, Wnt and Hedgehog
| Autor: | Katalin Susztak, Maria Edeling, Grace Ragi, Shizheng Huang, Hermann Pavenstädt |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Kidney development Kidney Article 03 medical and health sciences Fibrosis medicine Renal fibrosis Animals Homeostasis Humans Hedgehog Proteins Renal Insufficiency Chronic Hedgehog Wnt Signaling Pathway Renal stem cell Receptors Notch business.industry Podocytes Transdifferentiation Wnt signaling pathway Fibroblasts medicine.disease Cell biology Disease Models Animal 030104 developmental biology Nephrology business Myofibroblast Signal Transduction |
| Zdroj: | Nature reviews. Nephrology. 12(7) |
| ISSN: | 1759-507X |
| Popis: | Kidney fibrosis is a common histological manifestation of functional decline in the kidney. Fibrosis is a reactive process that develops in response to excessive epithelial injury and inflammation, leading to myofibroblast activation and an accumulation of extracellular matrix. Here, we describe how three key developmental signalling pathways - Notch, Wnt and Hedgehog (Hh) - are reactivated in response to kidney injury and contribute to the fibrotic response. Although transient activation of these pathways is needed for repair of injured tissue, their sustained activation is thought to promote fibrosis. Excessive Wnt and Notch expression prohibit epithelial differentiation, whereas increased Wnt and Hh expression induce fibroblast proliferation and myofibroblastic transdifferentiation. Notch, Wnt and Hh are fundamentally different signalling pathways, but their choreographed activation seems to be just as important for fibrosis as it is for embryonic kidney development. Decreasing the activity of Notch, Wnt or Hh signalling could potentially provide a new therapeutic strategy to ameliorate the development of fibrosis in chronic kidney disease. |
| Databáze: | OpenAIRE |
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