Bone marrow-derived extracellular vesicles carry the TGF-β signal transducer Smad2 to preserve hematopoietic stem cells in mice
Summary Extracellular vesicles (EVs) released by cells in the bone marrow (BM) are important for regulating proliferation, differentiation, and other processes in hematopoietic stem cells (HSC). TGF-β signaling is now well known to be involved in HSC’s quiescence and maintenance, but the TGF-β pathw...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2023-04-01
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| Series: | Cell Death Discovery |
| Online Access: | https://doi.org/10.1038/s41420-023-01414-0 |
| _version_ | 1797850185830760448 |
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| author | Flavie Gautheron Aleksandra Georgievski Carmen Garrido Ronan Quéré |
| author_facet | Flavie Gautheron Aleksandra Georgievski Carmen Garrido Ronan Quéré |
| author_sort | Flavie Gautheron |
| collection | DOAJ |
| description | Summary Extracellular vesicles (EVs) released by cells in the bone marrow (BM) are important for regulating proliferation, differentiation, and other processes in hematopoietic stem cells (HSC). TGF-β signaling is now well known to be involved in HSC’s quiescence and maintenance, but the TGF-β pathway related to EVs is still largely unknown in the hematopoietic system. We found that the EV inhibitor Calpeptin, when injected intravenously into mice, particularly affected the in vivo production of EVs carrying phosphorylated Smad2 (p-Smad2) in mouse BM. This was accompanied with an alteration in the quiescence and maintenance of murine HSC in vivo. EVs produced by murine mesenchymal stromal MS-5 cells also showed presence of p-Smad2 as a cargo. We treated MS-5 cells with the TGF-β inhibitor SB431542 in order to produce EVs lacking p-Smad2, and discovered that its presence was required for ex vivo maintenance of HSC. In conclusion, we revealed a new mechanism involving EVs produced in the mouse BM that transport bioactive phosphorylated Smad2 as a cargo to enhance the TGF-β signaling-mediated quiescence and maintenance of HSC. |
| first_indexed | 2024-04-09T18:57:26Z |
| format | Article |
| id | doaj.art-ba6801eed79d488bbe2d70d9ff0e5f4a |
| institution | Directory Open Access Journal |
| issn | 2058-7716 |
| language | English |
| last_indexed | 2024-04-09T18:57:26Z |
| publishDate | 2023-04-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Cell Death Discovery |
| spelling | doaj.art-ba6801eed79d488bbe2d70d9ff0e5f4a2023-04-09T11:08:10ZengNature Publishing GroupCell Death Discovery2058-77162023-04-019111010.1038/s41420-023-01414-0Bone marrow-derived extracellular vesicles carry the TGF-β signal transducer Smad2 to preserve hematopoietic stem cells in miceFlavie Gautheron0Aleksandra Georgievski1Carmen Garrido2Ronan Quéré3UMR1231, Inserm/Université BourgogneUMR1231, Inserm/Université BourgogneUMR1231, Inserm/Université BourgogneUMR1231, Inserm/Université BourgogneSummary Extracellular vesicles (EVs) released by cells in the bone marrow (BM) are important for regulating proliferation, differentiation, and other processes in hematopoietic stem cells (HSC). TGF-β signaling is now well known to be involved in HSC’s quiescence and maintenance, but the TGF-β pathway related to EVs is still largely unknown in the hematopoietic system. We found that the EV inhibitor Calpeptin, when injected intravenously into mice, particularly affected the in vivo production of EVs carrying phosphorylated Smad2 (p-Smad2) in mouse BM. This was accompanied with an alteration in the quiescence and maintenance of murine HSC in vivo. EVs produced by murine mesenchymal stromal MS-5 cells also showed presence of p-Smad2 as a cargo. We treated MS-5 cells with the TGF-β inhibitor SB431542 in order to produce EVs lacking p-Smad2, and discovered that its presence was required for ex vivo maintenance of HSC. In conclusion, we revealed a new mechanism involving EVs produced in the mouse BM that transport bioactive phosphorylated Smad2 as a cargo to enhance the TGF-β signaling-mediated quiescence and maintenance of HSC.https://doi.org/10.1038/s41420-023-01414-0 |
| spellingShingle | Flavie Gautheron Aleksandra Georgievski Carmen Garrido Ronan Quéré Bone marrow-derived extracellular vesicles carry the TGF-β signal transducer Smad2 to preserve hematopoietic stem cells in mice Cell Death Discovery |
| title | Bone marrow-derived extracellular vesicles carry the TGF-β signal transducer Smad2 to preserve hematopoietic stem cells in mice |
| title_full | Bone marrow-derived extracellular vesicles carry the TGF-β signal transducer Smad2 to preserve hematopoietic stem cells in mice |
| title_fullStr | Bone marrow-derived extracellular vesicles carry the TGF-β signal transducer Smad2 to preserve hematopoietic stem cells in mice |
| title_full_unstemmed | Bone marrow-derived extracellular vesicles carry the TGF-β signal transducer Smad2 to preserve hematopoietic stem cells in mice |
| title_short | Bone marrow-derived extracellular vesicles carry the TGF-β signal transducer Smad2 to preserve hematopoietic stem cells in mice |
| title_sort | bone marrow derived extracellular vesicles carry the tgf β signal transducer smad2 to preserve hematopoietic stem cells in mice |
| url | https://doi.org/10.1038/s41420-023-01414-0 |
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