Abstract | BACKGROUND: Neurodegeneration is a representative phenotype of patients with chronic alcoholism. Ethanol-induced calcium overload causes NOD-like receptor protein 3 (NLRP3) inflammasome formation and an imbalance in mitochondrial dynamics, closely associated with the pathogenesis of neurodegeneration. However, how calcium regulates this process in neuronal cells is poorly understood. Therefore, the present study investigated the detailed mechanism of calcium-regulated mitochondrial dynamics and NLRP3 inflammasome formation in neuronal cells by ethanol. METHODS: In this study, we used the SK-N-MC human neuroblastoma cell line. To confirm the expression level of the mRNA and protein, real time quantitative PCR and western blot were performed. Co-immunoprecipitation and Immunofluorescence staining were conducted to confirm the complex formation or interaction of the proteins. Flow cytometry was used to analyze intracellular calcium, mitochondrial dysfunction and neuronal apoptosis. RESULTS: CONCLUSIONS: Our results demonstrated that ethanol upregulated NMDAR-dependent CaMKII phosphorylation which is essential for Drp1-mediated excessive mitochondrial fission and the JNK1-induced NLRP3 inflammasome activation resulting in neuronal apoptosis. Video abstract.
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Authors | Jae Ryong Lim, Hyun Jik Lee, Young Hyun Jung, Jun Sung Kim, Chang Woo Chae, Seo Yihl Kim, Ho Jae Han |
Journal | Cell communication and signaling : CCS
(Cell Commun Signal)
Vol. 18
Issue 1
Pg. 123
(08 12 2020)
ISSN: 1478-811X [Electronic] England |
PMID | 32787872
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Cyclic AMP Response Element-Binding Protein
- Inflammasomes
- NLR Family, Pyrin Domain-Containing 3 Protein
- Reactive Oxygen Species
- Receptors, N-Methyl-D-Aspartate
- Ethanol
- Ubiquitin-Protein Ligases
- parkin protein
- Cyclic AMP-Dependent Protein Kinases
- Calcium-Calmodulin-Dependent Protein Kinase Type 2
- Mitogen-Activated Protein Kinase 8
- Caspase 1
- DNM1L protein, human
- Dynamins
- Calcium
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Topics |
- Apoptosis
(drug effects)
- Calcium
(metabolism)
- Calcium-Calmodulin-Dependent Protein Kinase Type 2
(metabolism)
- Caspase 1
(metabolism)
- Cell Line, Tumor
- Cyclic AMP Response Element-Binding Protein
(metabolism)
- Cyclic AMP-Dependent Protein Kinases
(metabolism)
- Dynamins
(metabolism)
- Enzyme Activation
(drug effects)
- Ethanol
(pharmacology)
- Humans
- Inflammasomes
(metabolism)
- Intracellular Space
(metabolism)
- Mitochondria
(drug effects, metabolism)
- Mitochondrial Dynamics
(drug effects)
- Mitogen-Activated Protein Kinase 8
(metabolism)
- Mitophagy
(drug effects)
- Models, Biological
- NLR Family, Pyrin Domain-Containing 3 Protein
(metabolism)
- Neurons
(drug effects, metabolism)
- Reactive Oxygen Species
(metabolism)
- Receptors, N-Methyl-D-Aspartate
(metabolism)
- Signal Transduction
(drug effects)
- Ubiquitin-Protein Ligases
(metabolism)
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