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Souza-Neto FP, Marinello PC, Melo GP, Ramalho LZN, Cela EM, Campo VE, González-Maglio DH, Cecchini R, Cecchini AL. Metformin inhibits the inflammatory and oxidative stress response induced by skin UVB-irradiation and provides 4-hydroxy-2-nonenal and nitrotyrosine formation and p53 protein activation. J Dermatol Sci 2020; 100:152-155. [PMID: 33051086 DOI: 10.1016/j.jdermsci.2020.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 04/04/2020] [Accepted: 05/27/2020] [Indexed: 10/24/2022]
Affiliation(s)
| | | | - Gabriela Pasqual Melo
- Laboratory of Molecular Pathology, State University of Londrina, Brazil; ZIK Plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Greifswald, Germany
| | | | - Eliana M Cela
- Universidad De Buenos Aires, Facultad De Farmacia y Bioquímica, Cátedra De Inmunología, Buenos Aires, Argentina; CONICET-Universidad De Buenos Aires, Instituto De Estudios De La Inmunidad Humoral (IDEHU), Buenos Aires, Argentina
| | - Valeria E Campo
- Universidad De Buenos Aires, Facultad De Farmacia y Bioquímica, Cátedra De Inmunología, Buenos Aires, Argentina; CONICET-Universidad De Buenos Aires, Instituto De Estudios De La Inmunidad Humoral (IDEHU), Buenos Aires, Argentina
| | - Daniel H González-Maglio
- Universidad De Buenos Aires, Facultad De Farmacia y Bioquímica, Cátedra De Inmunología, Buenos Aires, Argentina; CONICET-Universidad De Buenos Aires, Instituto De Estudios De La Inmunidad Humoral (IDEHU), Buenos Aires, Argentina
| | - Rubens Cecchini
- Laboratory of Pathophysiology and Free Radicals, State University of Londrina, Brazil
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Schipp R, Varga J, Bátor J, Vecsernyés M, Árvai Z, Pap M, Szeberényi J. Partial p53-dependence of anisomycin-induced apoptosis in PC12 cells. Mol Cell Biochem 2017; 434:41-50. [PMID: 28432551 DOI: 10.1007/s11010-017-3035-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 04/12/2017] [Indexed: 01/25/2023]
Abstract
The bacterial antibiotic anisomycin is known to induce apoptosis by activating several mitogen-activated protein kinases and by inhibiting protein synthesis. In this study, the influence of p53 protein on the apoptosis-inducing effect of anisomycin was investigated. The effect of protein synthesis-inhibiting concentration of anisomycin on apoptotic events was analyzed using Western blot, DNA fragmentation, and cell viability assays in wild-type PC12 and in mutant p53 protein expressing p143p53PC12 cells. Anisomycin stimulated the main apoptotic pathways in both cell lines, but p143p53PC12 cells showed lower sensitivity to the drug than their wild-type counterparts. Anisomycin caused the activation of the main stress kinases, phosphorylation of the p53 protein and the eukaryotic initiation factor eIF2α, proteolytic cleavage of protein kinase R, Bid, caspase-9 and -3. Furthermore, anisomycin treatment led to the activation of TRAIL and caspase-8, two proteins involved in the extrinsic apoptotic pathway. All these changes were stronger and more sustained in wtPC12 cells. In the presence of the dominant inhibitory p53 protein, p53- dependent genes involved in the regulation of apoptosis may be less transcribed and this can lead to the decrease of apoptotic processes in p143p53PC12 cells.
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Affiliation(s)
- R Schipp
- Department of Medical Biology, Medical School, University of Pécs, Szigeti út 12, Pécs, 7624, Hungary.,Signal Transduction Research Group, Szentágothai Research Centre, Ifjúság útja 20, Pécs, 7624, Hungary
| | - J Varga
- Department of Medical Biology, Medical School, University of Pécs, Szigeti út 12, Pécs, 7624, Hungary.,Signal Transduction Research Group, Szentágothai Research Centre, Ifjúság útja 20, Pécs, 7624, Hungary
| | - J Bátor
- Department of Medical Biology, Medical School, University of Pécs, Szigeti út 12, Pécs, 7624, Hungary.,Signal Transduction Research Group, Szentágothai Research Centre, Ifjúság útja 20, Pécs, 7624, Hungary
| | - M Vecsernyés
- Department of Medical Biology, Medical School, University of Pécs, Szigeti út 12, Pécs, 7624, Hungary.,Signal Transduction Research Group, Szentágothai Research Centre, Ifjúság útja 20, Pécs, 7624, Hungary
| | - Z Árvai
- Department of Medical Biology, Medical School, University of Pécs, Szigeti út 12, Pécs, 7624, Hungary.,Signal Transduction Research Group, Szentágothai Research Centre, Ifjúság útja 20, Pécs, 7624, Hungary
| | - M Pap
- Department of Medical Biology, Medical School, University of Pécs, Szigeti út 12, Pécs, 7624, Hungary.,Signal Transduction Research Group, Szentágothai Research Centre, Ifjúság útja 20, Pécs, 7624, Hungary
| | - József Szeberényi
- Department of Medical Biology, Medical School, University of Pécs, Szigeti út 12, Pécs, 7624, Hungary. .,Signal Transduction Research Group, Szentágothai Research Centre, Ifjúság útja 20, Pécs, 7624, Hungary.
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