Mea6 controls VLDL transport through the coordinated regulation of COPII assembly
Lipid accumulation, which may be caused by the disturbance in very low density lipoprotein (VLDL) secretion in the liver, can lead to fatty liver disease. VLDL is synthesized in endoplasmic reticulum (ER) and transported to Golgi apparatus for secretion into plasma. However, the underlying molecular mechanism for VLDL transport is still poorly understood. Here we show that hepatocyte-specific deletion of meningioma-expressed antigen 6 (Mea6)/cutaneous T cell lymphoma-associated antigen 5C (cTAGE5C) leads to severe fatty liver and hypolipemia in mice. Quantitative lipidomic and proteomic analyses indicate that Mea6/cTAGE5 deletion impairs the secretion of different types of lipids and proteins, including VLDL, from the liver. Moreover, we demonstrate that Mea6/cTAGE5 interacts with components of the ER coat protein complex II (COPII) which, when depleted, also cause lipid accumulation in hepatocytes. Our findings not only reveal several novel factors that regulate lipid transport, but also provide evidence that Mea6 plays a critical role in lipid transportation through the coordinated regulation of the COPII machinery.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2016 |
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| Erschienen: |
2016 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:26 |
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| Enthalten in: |
Cell research - 26(2016), 7 vom: 25. Juli, Seite 787-804 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wang, Yaqing [VerfasserIn] |
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| Links: |
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| Themen: |
Antigens, Neoplasm |
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| Anmerkungen: |
Date Completed 28.12.2017 Date Revised 14.12.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1038/cr.2016.75 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM261469231 |
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| 520 | |a Lipid accumulation, which may be caused by the disturbance in very low density lipoprotein (VLDL) secretion in the liver, can lead to fatty liver disease. VLDL is synthesized in endoplasmic reticulum (ER) and transported to Golgi apparatus for secretion into plasma. However, the underlying molecular mechanism for VLDL transport is still poorly understood. Here we show that hepatocyte-specific deletion of meningioma-expressed antigen 6 (Mea6)/cutaneous T cell lymphoma-associated antigen 5C (cTAGE5C) leads to severe fatty liver and hypolipemia in mice. Quantitative lipidomic and proteomic analyses indicate that Mea6/cTAGE5 deletion impairs the secretion of different types of lipids and proteins, including VLDL, from the liver. Moreover, we demonstrate that Mea6/cTAGE5 interacts with components of the ER coat protein complex II (COPII) which, when depleted, also cause lipid accumulation in hepatocytes. Our findings not only reveal several novel factors that regulate lipid transport, but also provide evidence that Mea6 plays a critical role in lipid transportation through the coordinated regulation of the COPII machinery | ||
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| 650 | 7 | |a Apolipoproteins B |2 NLM | |
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| 650 | 7 | |a Neoplasm Proteins |2 NLM | |
| 650 | 7 | |a Protein Subunits |2 NLM | |
| 650 | 7 | |a Proteome |2 NLM | |
| 650 | 7 | |a Vesicular Transport Proteins |2 NLM | |
| 700 | 1 | |a Liu, Liang |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Hongsheng |e verfasserin |4 aut | |
| 700 | 1 | |a Fan, Junwan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Feng |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Mei |e verfasserin |4 aut | |
| 700 | 1 | |a Shi, Lei |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Lin |e verfasserin |4 aut | |
| 700 | 1 | |a Lam, Sin Man |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Huimin |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Xiaowei |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Yingchun |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Fei |e verfasserin |4 aut | |
| 700 | 1 | |a Shui, Guanghou |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Zhiheng |e verfasserin |4 aut | |
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