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| Content Provider | Springer Nature Link |
|---|---|
| Author | Arciello, Mario Longo, Alessia Viscomi, Carmela Capo, Concetta Angeloni, Antonio Rossi, Luisa Balsa, Clara |
| Copyright Year | 2015 |
| Abstract | Nonalcoholic fatty liver disease (NAFLD) is a pathology that includes a wide variety of clinical conditions ranging from simple steatosis to end-stage liver diseases. Despite the huge amount of researches, the molecular basis of NAFLD are still not fully understood. Recently, it was suggested a role for p53 in NAFLD pathogenesis. Among its targets there is Synthesis of Cytochrome c Oxidase 2 (SCO2), a copper chaperone, involved in both aerobic respiration and metal cellular excretion. Copper seems to play a role in NAFLD. It was demonstrated a low hepatic copper content in NAFLD patients, which correlates with metabolic syndrome parameters. Copper homeostasis deregulation, in fact, seems to be related to lipid metabolism alteration and insulin resistance. Here we provide evidence on the role of p53 in the modulation of copper homeostasis, in an experimental model of NAFLD. We used two different hepatoma cell lines, HepG2 and Huh 7.5.1, characterized by the presence of wt p53 and its Y220C mutant, respectively, treated with a free fatty acids (FFAs) solution. Interestingly, p53 activation correlated with the intracellular copper level maintenance. We demonstrated that, in hepatoma cell lines, core domain mutant Y220C of p53 affects the modulation of SCO2 and Copper transporter 1 (CTR1), influencing, in this way, intracellular copper homeostasis in presence of FFAs accumulation, and that the 220 residue of the protein is crucial for such control. The role of p53 we highlighted may have deep implications in clinical conditions where copper homeostasis is deregulated. |
| Starting Page | 1017 |
| Ending Page | 1029 |
| Page Count | 13 |
| File Format | |
| ISSN | 09660844 |
| Journal | BioMetals |
| Volume Number | 28 |
| Issue Number | 6 |
| e-ISSN | 15728773 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2015-10-05 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | P53 Copper Metal homeostasis Fatty acid Hepatocyte Biochemistry Pharmacology/Toxicology Microbiology Cell Biology Plant Physiology Medicine/Public Health |
| Content Type | Text |
| Resource Type | Article |
| Subject | Metals and Alloys Biochemistry, Genetics and Molecular Biology Biomaterials Agricultural and Biological Sciences |
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