Inhibition of mitochondrial calcium uniporter protects neurocytes from ischemia/reperfusion injury via the inhibition of excessive mitophagy
Mitophagy plays an important role in mitochondrial quality control and cell survival during the process of ischemia/reperfusion (I/R) injury. Mitochondrial calcium uniporter (MCU) is the most important channel responsible for Ca(2+) influx into mitochondria and Ca(2+) signal plays a potential role in modulating mitophagy. However, the effect of MCU on mitophagy during the process of I/R injury remains unknown. This study constructed an in vitro I/R model by subjecting oxygen and glucose deprivation/reperfusion (OGD/RP) model to SH-SY5Y cells to mimic the cerebral I/R injury and aimed to explore the exact effect of MCU on I/R induced mitophagy. The results showed that OGD/RP induced autophagy and mitophagy in SH-SY5Y cells. Ru360, the inhibitor of MCU, improved mitochondrial morphology and fuctional stability as well as cell viability, significantly reduced OGD/RP induced mitophagy as evidenced by the decrease in Beclin-1 and the increase in Tom20 and P62 expression. Whereas spermine, the agonist of MCU, had no significant impact on the expression of those mitophagy related proteins compared with OGD/RP group. This study indicates that inhibition of MCU can inhibit excessive mitophagy and protect the neurocytes from I/R injury..
Medienart: |
Artikel |
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Erscheinungsjahr: |
2016 |
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Erschienen: |
2016 |
Enthalten in: |
Zur Gesamtaufnahme - volume:628 |
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Enthalten in: |
Neuroscience letters - 628(2016), Seite 24-29 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Yu, Shoushui [VerfasserIn] |
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Links: |
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BKL: |
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doi: |
10.1016/j.neulet.2016.06.012 |
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PPN (Katalog-ID): |
OLC1980308845 |
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520 | |a Mitophagy plays an important role in mitochondrial quality control and cell survival during the process of ischemia/reperfusion (I/R) injury. Mitochondrial calcium uniporter (MCU) is the most important channel responsible for Ca(2+) influx into mitochondria and Ca(2+) signal plays a potential role in modulating mitophagy. However, the effect of MCU on mitophagy during the process of I/R injury remains unknown. This study constructed an in vitro I/R model by subjecting oxygen and glucose deprivation/reperfusion (OGD/RP) model to SH-SY5Y cells to mimic the cerebral I/R injury and aimed to explore the exact effect of MCU on I/R induced mitophagy. The results showed that OGD/RP induced autophagy and mitophagy in SH-SY5Y cells. Ru360, the inhibitor of MCU, improved mitochondrial morphology and fuctional stability as well as cell viability, significantly reduced OGD/RP induced mitophagy as evidenced by the decrease in Beclin-1 and the increase in Tom20 and P62 expression. Whereas spermine, the agonist of MCU, had no significant impact on the expression of those mitophagy related proteins compared with OGD/RP group. This study indicates that inhibition of MCU can inhibit excessive mitophagy and protect the neurocytes from I/R injury. | ||
540 | |a Nutzungsrecht: Copyright © 2016 Elsevier Ireland Ltd. All rights reserved. | ||
700 | 1 | |a Zheng, Shengfa |4 oth | |
700 | 1 | |a Leng, Jing |4 oth | |
700 | 1 | |a Wang, Shilei |4 oth | |
700 | 1 | |a Zhao, Tao |4 oth | |
700 | 1 | |a Liu, Jia |4 oth | |
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