Presynaptic Autophagy and the Connection With Neurotransmission
Autophagy is an evolutionary conserved catabolic pathway essential for the maintenance of cellular homeostasis. Defective proteins and organelles are engulfed by autophagosomal membranes which fuse with lysosomes for cargo degradation. In neurons, the orchestrated progression of autophagosome format...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-12-01
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| Series: | Frontiers in Cell and Developmental Biology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fcell.2021.790721/full |
| _version_ | 1819102814182309888 |
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| author | Marianna Decet Marianna Decet Patrik Verstreken Patrik Verstreken |
| author_facet | Marianna Decet Marianna Decet Patrik Verstreken Patrik Verstreken |
| author_sort | Marianna Decet |
| collection | DOAJ |
| description | Autophagy is an evolutionary conserved catabolic pathway essential for the maintenance of cellular homeostasis. Defective proteins and organelles are engulfed by autophagosomal membranes which fuse with lysosomes for cargo degradation. In neurons, the orchestrated progression of autophagosome formation and maturation occurs in distinct subcellular compartments. For synapses, the distance from the soma and the oxidative stress generated during intense neuronal activity pose a challenge to maintain protein homeostasis. Autophagy constitutes a crucial mechanism for proper functioning of this unique and vulnerable cellular compartment. We are now beginning to understand how autophagy is regulated at pre-synaptic terminals and how this pathway, when imbalanced, impacts on synaptic function and -ultimately- neuronal survival. We review here the current state of the art of “synaptic autophagy”, with an emphasis on the biogenesis of autophagosomes at the pre-synaptic compartment. We provide an overview of the existing knowledge on the signals inducing autophagy at synapses, highlight the interplay between autophagy and neurotransmission, and provide perspectives for future research. |
| first_indexed | 2024-12-22T01:40:32Z |
| format | Article |
| id | doaj.art-a726beab09d241c59a46467a8ec042ff |
| institution | Directory Open Access Journal |
| issn | 2296-634X |
| language | English |
| last_indexed | 2024-12-22T01:40:32Z |
| publishDate | 2021-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Cell and Developmental Biology |
| spelling | doaj.art-a726beab09d241c59a46467a8ec042ff2022-12-21T18:43:15ZengFrontiers Media S.A.Frontiers in Cell and Developmental Biology2296-634X2021-12-01910.3389/fcell.2021.790721790721Presynaptic Autophagy and the Connection With NeurotransmissionMarianna Decet0Marianna Decet1Patrik Verstreken2Patrik Verstreken3VIB-KU Leuven Center for Brain & Disease Research, Leuven, BelgiumKU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, Leuven, BelgiumVIB-KU Leuven Center for Brain & Disease Research, Leuven, BelgiumKU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, Leuven, BelgiumAutophagy is an evolutionary conserved catabolic pathway essential for the maintenance of cellular homeostasis. Defective proteins and organelles are engulfed by autophagosomal membranes which fuse with lysosomes for cargo degradation. In neurons, the orchestrated progression of autophagosome formation and maturation occurs in distinct subcellular compartments. For synapses, the distance from the soma and the oxidative stress generated during intense neuronal activity pose a challenge to maintain protein homeostasis. Autophagy constitutes a crucial mechanism for proper functioning of this unique and vulnerable cellular compartment. We are now beginning to understand how autophagy is regulated at pre-synaptic terminals and how this pathway, when imbalanced, impacts on synaptic function and -ultimately- neuronal survival. We review here the current state of the art of “synaptic autophagy”, with an emphasis on the biogenesis of autophagosomes at the pre-synaptic compartment. We provide an overview of the existing knowledge on the signals inducing autophagy at synapses, highlight the interplay between autophagy and neurotransmission, and provide perspectives for future research.https://www.frontiersin.org/articles/10.3389/fcell.2021.790721/fullmacroautophagysynapsesynaptic autophagyneurotransmissionvesicle cycling |
| spellingShingle | Marianna Decet Marianna Decet Patrik Verstreken Patrik Verstreken Presynaptic Autophagy and the Connection With Neurotransmission Frontiers in Cell and Developmental Biology macroautophagy synapse synaptic autophagy neurotransmission vesicle cycling |
| title | Presynaptic Autophagy and the Connection With Neurotransmission |
| title_full | Presynaptic Autophagy and the Connection With Neurotransmission |
| title_fullStr | Presynaptic Autophagy and the Connection With Neurotransmission |
| title_full_unstemmed | Presynaptic Autophagy and the Connection With Neurotransmission |
| title_short | Presynaptic Autophagy and the Connection With Neurotransmission |
| title_sort | presynaptic autophagy and the connection with neurotransmission |
| topic | macroautophagy synapse synaptic autophagy neurotransmission vesicle cycling |
| url | https://www.frontiersin.org/articles/10.3389/fcell.2021.790721/full |
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