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Título: | PARP1 and Poly(ADP-ribosyl)ation Signaling during Autophagy in Response to Nutrient Deprivation |
Autor: | Rodríguez-Vargas, J.M.; Oliver, Francisco Javier; Dantzer, Françoise | Fecha de publicación: | 2019 | Editor: | Hindawi Publishing Corporation | Citación: | Oxidative Medicine and Cellular Longevity 2019 (2019) | Resumen: | Autophagy is considered to be the primary degradative pathway that takes place in all eukaryotic cells. Morphologically, the autophagy pathway refers to a process by which cytoplasmic portions are delivered to double-membrane organelles, called autophagosomes, to fuse with lysosomes for bulk degradation. Autophagy, as a prosurvival mechanism, can be stimulated by different types of cellular stress such as nutrient deprivation, hypoxia, ROS, pH, DNA damage, or ER stress, promoting adaptation of the cell to the changing and hostile environment. The functional relevance of autophagy in many diseases such as cancer or neurodegenerative diseases remains controversial, preserving organelle function and detoxification and promoting cell growth, although in other contexts, autophagy could suppress cell expansion. Poly(ADP-ribosyl)ation (PARylation) is a covalent and reversible posttranslational modification (PTM) of proteins mediated by Poly(ADP-ribose) polymerases (PARPs) with well-described functions in DNA repair, replication, genome integrity, cell cycle, and metabolism. Herein, we review the current state of PARP1 activation and PARylation in starvation-induced autophagy. | Versión del editor: | http://dx.doi.org/10.1155/2019/2641712 | URI: | http://hdl.handle.net/10261/212843 | DOI: | 10.1155/2019/2641712 | Identificadores: | doi: 10.1155/2019/2641712 issn: 1942-0900 e-issn: 1942-0994 |
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