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Yang D, Jeong Y, Ortinau L, Solidum J, Park D. Mx1 -labeled pulp progenitor cells are main contributors to postnatal odontoblasts and pulp cells in murine molars. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.21.586156. [PMID: 38585950 PMCID: PMC10996506 DOI: 10.1101/2024.03.21.586156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Regeneration of dentin and odontoblasts from dental pulp stem cells (DPSCs) is essential for permanent tooth maintenance. However, the in vivo identity and role of endogenous DPSCs in reparative dentinogenesis are elusive. Here, using pulp single-cell analysis before and after molar eruption, we revealed that endogenous DPSCs are enriched in Cxcl12- GFP + coronal papilla-like cells with Mx1- Cre labeling. These Mx1 + Cxcl12- GFP + cells are long-term repopulating cells that contribute to the majority of pulp cells and new odontoblasts after eruption. Upon molar injury, Mx1 + DPSCs localize into the injury site and differentiate into new odontoblasts, forming scleraxis -GFP + and osteocalcin -GFP + dentinal tubules and reparative dentin. Single-cell and FACS analysis showed that Mx1 + Cxcl12- GFP + DPSCs are the most primitive cells with stem cell marker expression and odontoblast differentiation. Taken together, our findings demonstrate that Mx1 labels postnatal DSPCs, which are the main source of pulp cells and new odontoblasts with reparative dentinogenesis in vivo .
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Zhou Y, Cai X, Zhang X, Dong Y, Pan X, Lai M, Zhang Y, Chen Y, Li X, Li X, Liu J, Zhang Y, Ma F. Mesenchymal stem/stromal cells from human pluripotent stem cell-derived brain organoid enhance the ex vivo expansion and maintenance of hematopoietic stem/progenitor cells. Stem Cell Res Ther 2024; 15:68. [PMID: 38443990 PMCID: PMC10916050 DOI: 10.1186/s13287-023-03624-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/22/2023] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Mesenchymal stem/stromal cells (MSCs) are of great therapeutic value due to their role in maintaining the function of hematopoietic stem/progenitor cells (HSPCs). MSCs derived from human pluripotent stem cells represent an ideal alternative because of their unlimited supply. However, the role of MSCs with neural crest origin derived from HPSCs on the maintenance of HSPCs has not been reported. METHODS Flow cytometric analysis, RNA sequencing and differentiation ability were applied to detect the characteristics of stromal cells from 3D human brain organoids. Human umbilical cord blood CD34+ (UCB-CD34+) cells were cultured in different coculture conditions composed of stromal cells and umbilical cord MSCs (UC-MSCs) with or without a cytokine cocktail. The hematopoietic stroma capacity of stromal cells was tested in vitro with the LTC-IC assay and in vivo by cotransplantation of cord blood nucleated cells and stroma cells into immunodeficient mice. RNA and proteomic sequencing were used to detect the role of MSCs on HSPCs. RESULTS The stromal cells, derived from both H1-hESCs and human induced pluripotent stem cells forebrain organoids, were capable of differentiating into the classical mesenchymal-derived cells (osteoblasts, chondrocytes, and adipocytes). These cells expressed MSC markers, thus named pluripotent stem cell-derived MSCs (pMSCs). The pMSCs showed neural crest origin with CD271 expression in the early stage. When human UCB-CD34+ HSPCs were cocultured on UC-MSCs or pMSCs, the latter resulted in robust expansion of UCB-CD34+ HSPCs in long-term culture and efficient maintenance of their transplantability. Comparison by RNA sequencing indicated that coculture of human UCB-CD34+ HSPCs with pMSCs provided an improved microenvironment for HSC maintenance. The pMSCs highly expressed the Wnt signaling inhibitors SFRP1 and SFRP2, indicating that they may help to modulate the cell cycle to promote the maintenance of UCB-CD34+ HSPCs by antagonizing Wnt activation. CONCLUSIONS A novel method for harvesting MSCs with neural crest origin from 3D human brain organoids under serum-free culture conditions was reported. We demonstrate that the pMSCs support human UCB-HSPC expansion in vitro in a long-term culture and the maintenance of their transplantable ability. RNA and proteomic sequencing indicated that pMSCs provided an improved microenvironment for HSC maintenance via mechanisms involving cell-cell contact and secreted factors and suppression of Wnt signaling. This represents a novel method for large-scale production of MSCs of neural crest origin and provides a potential approach for development of human hematopoietic stromal cell therapy for treatment of dyshematopoiesis.
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Affiliation(s)
- Ya Zhou
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Xinping Cai
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College(CAMS & PUMC), Tianjin, 300020, China
| | - Xiuxiu Zhang
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Yong Dong
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
- Department of Immunology, School of Basic Medical Sciences, Chengdu Medical College, Chengdu, China
| | - Xu Pan
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Mowen Lai
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Yimeng Zhang
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Yijin Chen
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Xiaohong Li
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Xia Li
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Jiaxin Liu
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Yonggang Zhang
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China.
| | - Feng Ma
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China.
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Nakatsuka R, Sasaki Y, Masutani M, Nozaki T. PARP1 Regulates Cellular Processes Mediated by Exosomal miRNAs in Dental Pulp Stem Cells. J HARD TISSUE BIOL 2021. [DOI: 10.2485/jhtb.30.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ryusuke Nakatsuka
- Department of Pharmacology, Faculty of Dentistry, Osaka Dental University
| | - Yuka Sasaki
- Department of Pharmacology, Faculty of Dentistry, Osaka Dental University
| | - Mitsuko Masutani
- Department of Molecular and Genomic Biomedicine, School of Medicine, Nagasaki University Graduate School of Biomedical Sciences, Center for Bioinformatics and Molecular Medicine
| | - Tadashige Nozaki
- Department of Pharmacology, Faculty of Dentistry, Osaka Dental University
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Reichert D, Friedrichs J, Ritter S, Käubler T, Werner C, Bornhäuser M, Corbeil D. Phenotypic, Morphological and Adhesive Differences of Human Hematopoietic Progenitor Cells Cultured on Murine versus Human Mesenchymal Stromal Cells. Sci Rep 2015; 5:15680. [PMID: 26498381 PMCID: PMC4620509 DOI: 10.1038/srep15680] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 10/01/2015] [Indexed: 02/07/2023] Open
Abstract
Xenogenic transplantation models have been developed to study human hematopoiesis in immunocompromised murine recipients. They still have limitations and therefore it is important to delineate all players within the bone marrow that could account for species-specific differences. Here, we evaluated the proliferative capacity, morphological and physical characteristics of human CD34+ hematopoietic stem and progenitor cells (HSPCs) after co-culture on murine or human bone marrow-derived mesenchymal stromal cells (MSCs). After seven days, human CD34+CD133– HSPCs expanded to similar extents on both feeder layers while cellular subsets comprising primitive CD34+CD133+ and CD133+CD34– phenotypes are reduced fivefold on murine MSCs. The number of migrating HSPCs was also reduced on murine cells suggesting that MSC adhesion influences cellular polarization of HSPC. We used atomic force microscopy-based single-cell force spectroscopy to quantify their adhesive interactions. We found threefold higher detachment forces of human HSPCs from murine MSCs compared to human ones. This difference is related to the N-cadherin expression level on murine MSCs since its knockdown abolished their differential adhesion properties with human HSPCs. Our observations highlight phenotypic, morphological and adhesive differences of human HSPCs when cultured on murine or human MSCs, which raise some caution in data interpretation when xenogenic transplantation models are used.
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Affiliation(s)
- Doreen Reichert
- Tissue Engineering Laboratories (BIOTEC), Technische Universität Dresden, 01307 Dresden, Germany
| | - Jens Friedrichs
- Institute for Biofunctional Polymer Materials, Leibniz Institute of Polymer Research Dresden, 01069 Dresden, Germany
| | - Steffi Ritter
- Tissue Engineering Laboratories (BIOTEC), Technische Universität Dresden, 01307 Dresden, Germany
| | - Theresa Käubler
- Tissue Engineering Laboratories (BIOTEC), Technische Universität Dresden, 01307 Dresden, Germany
| | - Carsten Werner
- Institute for Biofunctional Polymer Materials, Leibniz Institute of Polymer Research Dresden, 01069 Dresden, Germany.,DFG Research Center and Cluster of Excellence for Regenerative Therapies Dresden 01307 Dresden, Germany
| | - Martin Bornhäuser
- Medical Clinic and Polyclinic I, University Hospital Carl Gustav Carus, 01307 Dresden, Germany.,DFG Research Center and Cluster of Excellence for Regenerative Therapies Dresden 01307 Dresden, Germany
| | - Denis Corbeil
- Tissue Engineering Laboratories (BIOTEC), Technische Universität Dresden, 01307 Dresden, Germany.,DFG Research Center and Cluster of Excellence for Regenerative Therapies Dresden 01307 Dresden, Germany
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