Combining single-cell transcriptomics and CellTagging to identify differentiation trajectories of human adipose-derived mesenchymal stem cells
Abstract Background Mesenchymal stromal cells (MSCs) have attracted great attention in the application of cell-based therapy because of their pluripotent differentiation and immunomodulatory ability. Due to the limited number of MSCs isolated from donor tissues, a large number of MSCs need to be exp...
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BMC
2023-02-01
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Series: | Stem Cell Research & Therapy |
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Online Access: | https://doi.org/10.1186/s13287-023-03237-3 |
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author | Kai Lin Yanlei Yang Yinghao Cao Junbo Liang Jun Qian Xiaoyue Wang Qin Han |
author_facet | Kai Lin Yanlei Yang Yinghao Cao Junbo Liang Jun Qian Xiaoyue Wang Qin Han |
author_sort | Kai Lin |
collection | DOAJ |
description | Abstract Background Mesenchymal stromal cells (MSCs) have attracted great attention in the application of cell-based therapy because of their pluripotent differentiation and immunomodulatory ability. Due to the limited number of MSCs isolated from donor tissues, a large number of MSCs need to be expanded in a traditional two-dimensional cell culture device to obtain a sufficient therapeutic amount. However, long-term cultivation of MSCs in vitro has been proven to reduce their differentiation potential and change their immunomodulatory characteristics. We aimed to explore the cellular heterogeneity and differentiation potential of different MSCs expanded in vitro and reconstruct the complex cloning track of cells in the process of differentiation. Methods Single cell transcriptome sequencing was combined with ‘CellTagging’, which is a composite barcode indexing method that can capture the cloning history and cell identity in parallel to track the differentiation process of the same cell over time. Results Through the single-cell transcriptome and CellTagging, we found that the heterogeneity of human adipose tissue derived stem cells (hADSCs) in the early stage of culture was very limited. With the passage, the cells spontaneously differentiated during the process of division and proliferation, and the heterogeneity of the cells increased. By tracing the differentiation track of cells, we found most cells have the potential for multidirectional differentiation, while a few cells have the potential for unidirectional differentiation. One subpopulation of hADSCs with the specific osteoblast differentiation potential was traced from the early stage to the late stage, which indicates that the differentiation trajectories of the cells are determined in the early stages of lineage transformation. Further, considering that all genes related to osteogenic differentiation have not yet been determined, we identified that there are some genes that are highly expressed specifically in the hADSC subsets that can successfully differentiate into osteoblasts, such as Serpin Family E Member 2 (SERPINE2), Secreted Frizzled Related Protein 1 (SFRP1), Keratin 7 (KRT7), Peptidase Inhibitor 16 (PI16), and Carboxypeptidase E (CPE), which may be key regulatory genes for osteogenic induction, and finally proved that the SERPINE2 gene can promote the osteogenic process. Conclusion The results of this study contribute toward the exploration of the heterogeneity of hADSCs and improving our understanding of the influence of heterogeneity on the differentiation potential of cells. Through this study, we found that the SERPINE2 gene plays a decisive role in the osteogenic differentiation of hADSCs, which lays a foundation for establishing a more novel and complete induction system. |
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language | English |
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spelling | doaj.art-1eaeff4335bf41bcb32768832345f3962023-02-05T12:06:08ZengBMCStem Cell Research & Therapy1757-65122023-02-0114111510.1186/s13287-023-03237-3Combining single-cell transcriptomics and CellTagging to identify differentiation trajectories of human adipose-derived mesenchymal stem cellsKai Lin0Yanlei Yang1Yinghao Cao2Junbo Liang3Jun Qian4Xiaoyue Wang5Qin Han6State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, School of Basic Medicine Peking Union Medical College, Institute of Basic Medical Sciences Chinese Academy of Medical SciencesBeijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy (BZ0381), School of Basic Medicine Peking Union Medical College, Peking Union Medical College Hospital, Institute of Basic Medical Sciences Chinese Academy of Medical SciencesState Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, School of Basic Medicine Peking Union Medical College, Institute of Basic Medical Sciences Chinese Academy of Medical SciencesState Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, School of Basic Medicine Peking Union Medical College, Institute of Basic Medical Sciences Chinese Academy of Medical SciencesState Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, School of Basic Medicine Peking Union Medical College, Institute of Basic Medical Sciences Chinese Academy of Medical SciencesState Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, School of Basic Medicine Peking Union Medical College, Institute of Basic Medical Sciences Chinese Academy of Medical SciencesBeijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy (BZ0381), School of Basic Medicine Peking Union Medical College, Peking Union Medical College Hospital, Institute of Basic Medical Sciences Chinese Academy of Medical SciencesAbstract Background Mesenchymal stromal cells (MSCs) have attracted great attention in the application of cell-based therapy because of their pluripotent differentiation and immunomodulatory ability. Due to the limited number of MSCs isolated from donor tissues, a large number of MSCs need to be expanded in a traditional two-dimensional cell culture device to obtain a sufficient therapeutic amount. However, long-term cultivation of MSCs in vitro has been proven to reduce their differentiation potential and change their immunomodulatory characteristics. We aimed to explore the cellular heterogeneity and differentiation potential of different MSCs expanded in vitro and reconstruct the complex cloning track of cells in the process of differentiation. Methods Single cell transcriptome sequencing was combined with ‘CellTagging’, which is a composite barcode indexing method that can capture the cloning history and cell identity in parallel to track the differentiation process of the same cell over time. Results Through the single-cell transcriptome and CellTagging, we found that the heterogeneity of human adipose tissue derived stem cells (hADSCs) in the early stage of culture was very limited. With the passage, the cells spontaneously differentiated during the process of division and proliferation, and the heterogeneity of the cells increased. By tracing the differentiation track of cells, we found most cells have the potential for multidirectional differentiation, while a few cells have the potential for unidirectional differentiation. One subpopulation of hADSCs with the specific osteoblast differentiation potential was traced from the early stage to the late stage, which indicates that the differentiation trajectories of the cells are determined in the early stages of lineage transformation. Further, considering that all genes related to osteogenic differentiation have not yet been determined, we identified that there are some genes that are highly expressed specifically in the hADSC subsets that can successfully differentiate into osteoblasts, such as Serpin Family E Member 2 (SERPINE2), Secreted Frizzled Related Protein 1 (SFRP1), Keratin 7 (KRT7), Peptidase Inhibitor 16 (PI16), and Carboxypeptidase E (CPE), which may be key regulatory genes for osteogenic induction, and finally proved that the SERPINE2 gene can promote the osteogenic process. Conclusion The results of this study contribute toward the exploration of the heterogeneity of hADSCs and improving our understanding of the influence of heterogeneity on the differentiation potential of cells. Through this study, we found that the SERPINE2 gene plays a decisive role in the osteogenic differentiation of hADSCs, which lays a foundation for establishing a more novel and complete induction system.https://doi.org/10.1186/s13287-023-03237-3MSCsHeterogeneitySingle-cell RNA-seqCellTaggingOsteogenic differentiation |
spellingShingle | Kai Lin Yanlei Yang Yinghao Cao Junbo Liang Jun Qian Xiaoyue Wang Qin Han Combining single-cell transcriptomics and CellTagging to identify differentiation trajectories of human adipose-derived mesenchymal stem cells Stem Cell Research & Therapy MSCs Heterogeneity Single-cell RNA-seq CellTagging Osteogenic differentiation |
title | Combining single-cell transcriptomics and CellTagging to identify differentiation trajectories of human adipose-derived mesenchymal stem cells |
title_full | Combining single-cell transcriptomics and CellTagging to identify differentiation trajectories of human adipose-derived mesenchymal stem cells |
title_fullStr | Combining single-cell transcriptomics and CellTagging to identify differentiation trajectories of human adipose-derived mesenchymal stem cells |
title_full_unstemmed | Combining single-cell transcriptomics and CellTagging to identify differentiation trajectories of human adipose-derived mesenchymal stem cells |
title_short | Combining single-cell transcriptomics and CellTagging to identify differentiation trajectories of human adipose-derived mesenchymal stem cells |
title_sort | combining single cell transcriptomics and celltagging to identify differentiation trajectories of human adipose derived mesenchymal stem cells |
topic | MSCs Heterogeneity Single-cell RNA-seq CellTagging Osteogenic differentiation |
url | https://doi.org/10.1186/s13287-023-03237-3 |
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