Changes in Oxidised Phospholipids in Response to Oxidative Stress in Microtubule-Associated Protein Tau ( MAPT ) Mutant Dopamine Neurons
Microtubule-associated protein Tau (MAPT) is strongly associated with the development of neurodegenerative diseases. In addition to driving the formation of neurofibrillary tangles (NFT), mutations in the MAPT gene can also cause oxidative stress through hyperpolarisation of the mitochondria. This s...
| 主要な著者: | , , |
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| フォーマット: | Journal article |
| 言語: | English |
| 出版事項: |
MDPI
2024
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| _version_ | 1826313562112393216 |
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| author | Bradford, X Fernandes, HJR Snowden, SG |
| author_facet | Bradford, X Fernandes, HJR Snowden, SG |
| author_sort | Bradford, X |
| collection | OXFORD |
| description | Microtubule-associated protein Tau (MAPT) is strongly associated with the development of neurodegenerative diseases. In addition to driving the formation of neurofibrillary tangles (NFT), mutations in the MAPT gene can also cause oxidative stress through hyperpolarisation of the mitochondria. This study explores the impact that MAPT mutation is having on phospholipid metabolism in iPSC-derived dopamine neurons, and to determine if these effects are exacerbated by mitochondrial and endoplasmic reticulum stress. Neurons that possessed a mutated copy of MAPT were shown to have significantly higher levels of oxo-phospholipids (Oxo-PL) than wild-type neurons. Oxidation of the hydrophobic fatty acid side chains changes the chemistry of the phospholipid leading to disruption of membrane function and potential cell lysis. In wild-type neurons, both mitochondrial and endoplasmic reticulum stress increased Oxo-PL abundance; however, in MAPT mutant neurons mitochondrial stress appeared to have a minimal effect. Endoplasmic reticulum stress, surprisingly, reduced the abundance of Oxo-PL in MAPT mutant dopamine neurons, and we postulate that this reduction could be modulated through hyperactivation of the unfolded protein response and X-box binding protein 1. Overall, the results of this study contribute to furthering our understanding of the regulation and impact of oxidative stress in Parkinson’s disease pathology. |
| first_indexed | 2024-09-25T04:15:19Z |
| format | Journal article |
| id | oxford-uuid:5274a18c-2d95-4aa4-b410-62076e7002b5 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-09-25T04:15:19Z |
| publishDate | 2024 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oxford-uuid:5274a18c-2d95-4aa4-b410-62076e7002b52024-07-20T14:56:33ZChanges in Oxidised Phospholipids in Response to Oxidative Stress in Microtubule-Associated Protein Tau ( MAPT ) Mutant Dopamine NeuronsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5274a18c-2d95-4aa4-b410-62076e7002b5EnglishJisc Publications RouterMDPI2024Bradford, XFernandes, HJRSnowden, SGMicrotubule-associated protein Tau (MAPT) is strongly associated with the development of neurodegenerative diseases. In addition to driving the formation of neurofibrillary tangles (NFT), mutations in the MAPT gene can also cause oxidative stress through hyperpolarisation of the mitochondria. This study explores the impact that MAPT mutation is having on phospholipid metabolism in iPSC-derived dopamine neurons, and to determine if these effects are exacerbated by mitochondrial and endoplasmic reticulum stress. Neurons that possessed a mutated copy of MAPT were shown to have significantly higher levels of oxo-phospholipids (Oxo-PL) than wild-type neurons. Oxidation of the hydrophobic fatty acid side chains changes the chemistry of the phospholipid leading to disruption of membrane function and potential cell lysis. In wild-type neurons, both mitochondrial and endoplasmic reticulum stress increased Oxo-PL abundance; however, in MAPT mutant neurons mitochondrial stress appeared to have a minimal effect. Endoplasmic reticulum stress, surprisingly, reduced the abundance of Oxo-PL in MAPT mutant dopamine neurons, and we postulate that this reduction could be modulated through hyperactivation of the unfolded protein response and X-box binding protein 1. Overall, the results of this study contribute to furthering our understanding of the regulation and impact of oxidative stress in Parkinson’s disease pathology. |
| spellingShingle | Bradford, X Fernandes, HJR Snowden, SG Changes in Oxidised Phospholipids in Response to Oxidative Stress in Microtubule-Associated Protein Tau ( MAPT ) Mutant Dopamine Neurons |
| title | Changes in Oxidised Phospholipids in Response to Oxidative Stress in Microtubule-Associated Protein Tau ( MAPT ) Mutant Dopamine Neurons |
| title_full | Changes in Oxidised Phospholipids in Response to Oxidative Stress in Microtubule-Associated Protein Tau ( MAPT ) Mutant Dopamine Neurons |
| title_fullStr | Changes in Oxidised Phospholipids in Response to Oxidative Stress in Microtubule-Associated Protein Tau ( MAPT ) Mutant Dopamine Neurons |
| title_full_unstemmed | Changes in Oxidised Phospholipids in Response to Oxidative Stress in Microtubule-Associated Protein Tau ( MAPT ) Mutant Dopamine Neurons |
| title_short | Changes in Oxidised Phospholipids in Response to Oxidative Stress in Microtubule-Associated Protein Tau ( MAPT ) Mutant Dopamine Neurons |
| title_sort | changes in oxidised phospholipids in response to oxidative stress in microtubule associated protein tau mapt mutant dopamine neurons |
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