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Lysosomal phospholipase A2 contributes to the biosynthesis of the atypical late endosome lipid bis(monoacylglycero)phosphate
The late endosome/lysosome (LE/Lys) lipid bis(monoacylglycero)phosphate (BMP) plays major roles in cargo sorting and degradation, regulation of cholesterol and intercellular communication and has been linked to viral infection and neurodegeneration. Although BMP was initially described over fifty ye...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9950130/ https://www.ncbi.nlm.nih.gov/pubmed/36823305 http://dx.doi.org/10.1038/s42003-023-04573-z |
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author | Chen, Jacinda Cazenave-Gassiot, Amaury Xu, Yimeng Piroli, Paola Hwang, Robert DeFreitas, Laura Chan, Robin Barry Di Paolo, Gilbert Nandakumar, Renu Wenk, Markus R. Marquer, Catherine |
author_facet | Chen, Jacinda Cazenave-Gassiot, Amaury Xu, Yimeng Piroli, Paola Hwang, Robert DeFreitas, Laura Chan, Robin Barry Di Paolo, Gilbert Nandakumar, Renu Wenk, Markus R. Marquer, Catherine |
author_sort | Chen, Jacinda |
collection | PubMed |
description | The late endosome/lysosome (LE/Lys) lipid bis(monoacylglycero)phosphate (BMP) plays major roles in cargo sorting and degradation, regulation of cholesterol and intercellular communication and has been linked to viral infection and neurodegeneration. Although BMP was initially described over fifty years ago, the enzymes regulating its synthesis remain unknown. The first step in the BMP biosynthetic pathway is the conversion of phosphatidylglycerol (PG) into lysophosphatidylglycerol (LPG) by a phospholipase A2 (PLA2) enzyme. Here we report that this enzyme is lysosomal PLA2 (LPLA2). We show that LPLA2 is sufficient to convert PG into LPG in vitro. We show that modulating LPLA2 levels regulates BMP levels in HeLa cells, and affects downstream pathways such as LE/Lys morphology and cholesterol levels. Finally, we show that in a model of Niemann-Pick disease type C, overexpressing LPLA2 alleviates the LE/Lys cholesterol accumulation phenotype. Altogether, we shed new light on BMP biosynthesis and contribute tools to regulate BMP-dependent pathways. |
format | Online Article Text |
id | pubmed-9950130 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-99501302023-02-25 Lysosomal phospholipase A2 contributes to the biosynthesis of the atypical late endosome lipid bis(monoacylglycero)phosphate Chen, Jacinda Cazenave-Gassiot, Amaury Xu, Yimeng Piroli, Paola Hwang, Robert DeFreitas, Laura Chan, Robin Barry Di Paolo, Gilbert Nandakumar, Renu Wenk, Markus R. Marquer, Catherine Commun Biol Article The late endosome/lysosome (LE/Lys) lipid bis(monoacylglycero)phosphate (BMP) plays major roles in cargo sorting and degradation, regulation of cholesterol and intercellular communication and has been linked to viral infection and neurodegeneration. Although BMP was initially described over fifty years ago, the enzymes regulating its synthesis remain unknown. The first step in the BMP biosynthetic pathway is the conversion of phosphatidylglycerol (PG) into lysophosphatidylglycerol (LPG) by a phospholipase A2 (PLA2) enzyme. Here we report that this enzyme is lysosomal PLA2 (LPLA2). We show that LPLA2 is sufficient to convert PG into LPG in vitro. We show that modulating LPLA2 levels regulates BMP levels in HeLa cells, and affects downstream pathways such as LE/Lys morphology and cholesterol levels. Finally, we show that in a model of Niemann-Pick disease type C, overexpressing LPLA2 alleviates the LE/Lys cholesterol accumulation phenotype. Altogether, we shed new light on BMP biosynthesis and contribute tools to regulate BMP-dependent pathways. Nature Publishing Group UK 2023-02-23 /pmc/articles/PMC9950130/ /pubmed/36823305 http://dx.doi.org/10.1038/s42003-023-04573-z Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Chen, Jacinda Cazenave-Gassiot, Amaury Xu, Yimeng Piroli, Paola Hwang, Robert DeFreitas, Laura Chan, Robin Barry Di Paolo, Gilbert Nandakumar, Renu Wenk, Markus R. Marquer, Catherine Lysosomal phospholipase A2 contributes to the biosynthesis of the atypical late endosome lipid bis(monoacylglycero)phosphate |
title | Lysosomal phospholipase A2 contributes to the biosynthesis of the atypical late endosome lipid bis(monoacylglycero)phosphate |
title_full | Lysosomal phospholipase A2 contributes to the biosynthesis of the atypical late endosome lipid bis(monoacylglycero)phosphate |
title_fullStr | Lysosomal phospholipase A2 contributes to the biosynthesis of the atypical late endosome lipid bis(monoacylglycero)phosphate |
title_full_unstemmed | Lysosomal phospholipase A2 contributes to the biosynthesis of the atypical late endosome lipid bis(monoacylglycero)phosphate |
title_short | Lysosomal phospholipase A2 contributes to the biosynthesis of the atypical late endosome lipid bis(monoacylglycero)phosphate |
title_sort | lysosomal phospholipase a2 contributes to the biosynthesis of the atypical late endosome lipid bis(monoacylglycero)phosphate |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9950130/ https://www.ncbi.nlm.nih.gov/pubmed/36823305 http://dx.doi.org/10.1038/s42003-023-04573-z |
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