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- Carmona-Gutierrez, D, et al.
(författare)
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The flavonoid 4,4'-dimethoxychalcone promotes autophagy-dependent longevity across species
- 2019
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Ingår i: Nature communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 10:1, s. 651-
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Tidskriftsartikel (refereegranskat)abstract
- Ageing constitutes the most important risk factor for all major chronic ailments, including malignant, cardiovascular and neurodegenerative diseases. However, behavioural and pharmacological interventions with feasible potential to promote health upon ageing remain rare. Here we report the identification of the flavonoid 4,4′-dimethoxychalcone (DMC) as a natural compound with anti-ageing properties. External DMC administration extends the lifespan of yeast, worms and flies, decelerates senescence of human cell cultures, and protects mice from prolonged myocardial ischaemia. Concomitantly, DMC induces autophagy, which is essential for its cytoprotective effects from yeast to mice. This pro-autophagic response induces a conserved systemic change in metabolism, operates independently of TORC1 signalling and depends on specific GATA transcription factors. Notably, we identify DMC in the plant Angelica keiskei koidzumi, to which longevity- and health-promoting effects are ascribed in Asian traditional medicine. In summary, we have identified and mechanistically characterised the conserved longevity-promoting effects of a natural anti-ageing drug.
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- Pattaro, Cristian, et al.
(författare)
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Genetic associations at 53 loci highlight cell types and biological pathways relevant for kidney function
- 2016
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Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 7
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Tidskriftsartikel (refereegranskat)abstract
- Reduced glomerular filtration rate defines chronic kidney disease and is associated with cardiovascular and all-cause mortality. We conducted a meta-analysis of genome-wide association studies for estimated glomerular filtration rate (eGFR), combining data across 133,413 individuals with replication in up to 42,166 individuals. We identify 24 new and confirm 29 previously identified loci. Of these 53 loci, 19 associate with eGFR among individuals with diabetes. Using bioinformatics, we show that identified genes at eGFR loci are enriched for expression in kidney tissues and in pathways relevant for kidney development and transmembrane transporter activity, kidney structure, and regulation of glucose metabolism. Chromatin state mapping and DNase I hypersensitivity analyses across adult tissues demonstrate preferential mapping of associated variants to regulatory regions in kidney but not extra-renal tissues. These findings suggest that genetic determinants of eGFR are mediated largely through direct effects within the kidney and highlight important cell types and biological pathways.
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- Vitale, I, et al.
(författare)
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DNA Damage in Stem Cells
- 2017
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Ingår i: Molecular cell. - : Elsevier BV. - 1097-4164 .- 1097-2765. ; 66:3, s. 306-319
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Tidskriftsartikel (refereegranskat)
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- Zhang, SY, et al.
(författare)
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Squaramide-based synthetic chloride transporters activate TFEB but block autophagic flux
- 2019
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Ingår i: Cell death & disease. - : Springer Science and Business Media LLC. - 2041-4889. ; 10:3, s. 242-
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Tidskriftsartikel (refereegranskat)abstract
- Cystic fibrosis is a disease caused by defective function of a chloride channel coupled to a blockade of autophagic flux. It has been proposed to use synthetic chloride transporters as pharmacological agents to compensate insufficient chloride fluxes. Here, we report that such chloride anionophores block autophagic flux in spite of the fact that they activate the pro-autophagic transcription factor EB (TFEB) coupled to the inhibition of the autophagy-suppressive mTORC1 kinase activity. Two synthetic chloride transporters (SQ1 and SQ2) caused a partially TFEB-dependent relocation of the autophagic marker LC3 to the Golgi apparatus. Inhibition of TFEB activation using a calcium chelator or calcineurin inhibitors reduced the formation of LC3 puncta in cells, yet did not affect the cytotoxic action of SQ1 and SQ2 that could be observed after prolonged incubation. In conclusion, the squaramide-based synthetic chloride transporters studied in this work (which can also dissipate pH gradients) are probably not appropriate for the treatment of cystic fibrosis yet might be used for other indications such as cancer.
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| 44. |
- Abdellatif, M, et al.
(författare)
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Autophagy in Cardiovascular Aging
- 2018
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Ingår i: Circulation research. - 1524-4571. ; 123:7, s. 803-824
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Tidskriftsartikel (refereegranskat)
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- Baracco, EE, et al.
(författare)
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α-Ketoglutarate inhibits autophagy
- 2019
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Ingår i: Aging. - : Impact Journals, LLC. - 1945-4589. ; 11:11, s. 3418-3431
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Tidskriftsartikel (refereegranskat)
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