Loss of the Birt-Hogg-Dubé gene product folliculin induces longevity in a hypoxia-inducible factor-dependent manner
| Autor: | Sibylle Brinkkötter, Bernhard Schermer, Peter Frommolt, Thomas Benzing, Francesca Fabretti, Roman-Ulrich Müller, Puneet Bharill, Markus M. Rinschen, Volker Burst, Hakam Gharbi |
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| Rok vydání: | 2013 |
| Předmět: |
Aging
media_common.quotation_subject Longevity Biology medicine.disease_cause Gene product Birt-Hogg-Dube Syndrome Longevity Pathway Proto-Oncogene Proteins medicine Animals Humans RNA Messenger Folliculin Caenorhabditis elegans Caenorhabditis elegans Proteins media_common Genetics Sequence Homology Amino Acid Mechanism (biology) Protein Stability Tumor Suppressor Proteins Gene Expression Regulation Developmental Forkhead Transcription Factors Cell Biology Cullin Proteins Cell biology Hypoxia-inducible factors Ubiquitin ligase complex Mutation Carcinogenesis Transcription Factors |
| Zdroj: | Aging cell. 12(4) |
| ISSN: | 1474-9726 |
| Popis: | Summary Signaling through the hypoxia-inducible factor hif-1 controls longevity, metabolism, and stress resistance in Caenorhabditis elegans. Hypoxia-inducible factor (HIF) protein levels are regulated through an evolutionarily conserved ubiquitin ligase complex. Mutations in the VHL gene, encoding a core component of this complex, cause a multitumor syndrome and renal cell carcinoma in humans. In the nematode, deficiency in vhl-1 promotes longevity mediated through HIF-1 stabilization. However, this longevity assurance pathway is not yet understood. Here, we identify folliculin (FLCN) as a novel interactor of the hif-1/vhl-1 longevity pathway. FLCN mutations cause Birt–Hogg–Dube syndrome in humans, another tumor syndrome with renal tumorigenesis reminiscent of the VHL disease. Loss of the C. elegans ortholog of FLCN F22D3.2 significantly increased lifespan and enhanced stress resistance in a hif-1-dependent manner. F22D3.2, vhl-1, and hif-1 control longevity by a mechanism distinct from insulin-like signaling. Daf-16 deficiency did not abrogate the increase in lifespan mediated by flcn-1. These findings define FLCN as a player in HIF-dependent longevity signaling and connect organismal aging, stress resistance, and regulation of longevity with the formation of renal cell carcinoma. |
| Databáze: | OpenAIRE |
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