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Periosteal skeletal stem cells can migrate into the bone marrow and support hematopoiesis after injury [II]

ABSTRACT: To investigate the transcriptomic differences between bone marrow mesenchymals stem cells and periosteal skeletal stem cells at steady state, and graft bone marrow mesenchymal stem cells 5 months after transplantation

ORGANISM(S): Mus musculus

PROVIDER: GSE222271 | GEO | 2023/01/12

REPOSITORIES: GEO

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Periosteal skeletal stem cells can migrate into the bone marrow and support hematopoiesis after injury [I]

Project description:To investigate the transcriptomic differences between bone marrow mesenchymals stem cells and periosteal skeletal stem cells at steady state, and periosteal skeletal stem cells 72 hours after bone transplantation

2023-01-12 | GSE216824 | GEO

Comparative analysis of gene expression identifies distinct molecular signatures of bone marrow- and periosteal skeletal stem/progenitor cells

Project description:Genetic comparison between periosteal skeletal stem cells and bone marrow skeletal stem cells in mice

2017-12-08 | GSE107798 | GEO

Skeletal stem/progenitor cells in periosteum and skeletal muscle share a common molecular response to bone injury

Project description:Periosteum is a major source of skeletal stem/progenitor cells (SSPCs) during bone repair. However, the cellular composition of the periosteum is poorly characterized. Here, we provide single-cell RNAseq data of periosteal cells isolated by explant culture at steady state and at day 3 post-tibial fracture. We found that periosteal cell populations are heterogeneous containing several sub-populations of SSPCs. Upon fracture, SSPCs are activated by leaving their mesenchymal state, and engaging into fibrogenesis prior to chondrogenesis.

2022-08-10 | GSE195940 | GEO

Single‐cell transcriptomics of LepR‐positive skeletal cells reveals heterogeneous stress‐dependent stem and progenitor pools

Project description:Leptin receptor (LepR)-positive cells are key components of the bone marrow hematopoietic microenvironment, and highly enrich skeletal stem and progenitor cells that maintain homeostasis of the adult skeleton. However, the heterogeneity and lineage hierarchy within this population has been elusive. Using genetic lineage tracing and single-cell RNA sequencing, we found that Lepr-Cre labels most bone marrow stromal cells and osteogenic lineage cells in adult long bones. Integrated analysis of Lepr-Cre-traced cells under homeostatic and stress conditions revealed dynamic changes of the adipogenic, osteogenic, and periosteal lineages. Importantly, we discovered a Notch3+ bone marrow sub-population that is slow-cycling and closely associated with the vasculatures, as well as key transcriptional networks promoting osteo-chondrogenic differentiation. We also identified a Sca-1+ periosteal sub-population with high clonogenic activity but limited osteo-chondrogenic potential. Together, we mapped the transcriptomic landscape of adult LepR+ stem and progenitor cells and uncovered cellular and molecular mechanisms underlying their maintenance and lineage specification.

2021-11-17 | GSE138689 | GEO

Comparative analysis of gene expression identifies distinct molecular signatures of bone marrow- and periosteal skeletal stem/progenitor cells

Project description:Comparative analysis of gene expression identifies distinct molecular signatures of bone marrow- and periosteal skeletal stem/progenitor cells

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Single nuclei RNAseq of the periosteal response to bone fracture in mice

Project description:Bone regeneration is a highly efficient process allowing scarless healing after injury. The periosteum, the outer layer of bones, is a critical source of skeletal stem/progenitor cells (SSPCs), as well as immune, endothelial and neural cells during bone repair. In our study, we generated a single-nuclei atlas of the murine periosteal response to bone fracture. We generated single nuclei datasets from uninjured periosteum and from injured periosteum and hematoma/fracture callus at days 5 and 7 post-injury from wild-type mice.

2024-04-01 | GSE234451 | GEO

RNA-seq analysis on osteoclasts and periosteal stem cells from control and Prmt5 f/d Ctsk-Cre mice

Project description:To gain insights into the role of Prmt5 in osteoclasts and periosteal stem cells , we performed RNA sequencing (RNA-seq) on osteoclasts and periosteal stem cells from control and Prmt5 f/d Ctsk-Cre mice

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Periosteum contains skeletal stem cells with high bone regenerative potential controlled by Periostin

Project description:Bone regeneration relies on the activation of skeletal stem cells (SSCs) that still remain poorly characterized. Here, we show that periosteum contains SSCs with high bone regenerative potential compared to bone marrow stromal cells/skeletal stem cells (BMSCs) in mice. Although periosteal cells (PCs) and BMSCs are derived from a common embryonic mesenchymal lineage, post-natally PCs exhibit greater clonogenicity, growth and differentiation capacity than BMSCs. During bone repair, PCs can efficiently contribute to cartilage and bone, and integrate long-term after transplantation. Molecular profiling uncovers genes encoding Periostin and other extracellular matrix molecules associated with the enhanced response to injury of PCs. Periostin gene deletion impairs PC functions and fracture consolidation. Periostin-deficient periosteum cannot reconstitute a pool of PCs after injury demonstrating the presence of SSCs within periosteum and the requirement of Periostin in maintaining this pool. Overall our results highlight the importance of analyzing periosteum and PCs to understand bone phenotypes.

2018-10-18 | E-MTAB-6417 | biostudies-arrayexpress

Vorinostat, Tacrolimus, and Methotrexate in Preventing GVHD After Stem Cell Transplant in Patients With Hematological Malignancies

Project description:This pilot phase II trial studies how well giving vorinostat, tacrolimus, and methotrexate works in preventing graft-versus-host disease (GVHD) after stem cell transplant in patients with hematological malignancies. Vorinostat, tacrolimus, and methotrexate may be an effective treatment for GVHD caused by a bone marrow transplant.

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Haploidentical Donor Bone Marrow Transplant in Treating Patients With High-Risk Hematologic Cancer

Project description:This phase II trial studies how well giving fludarabine phosphate, cyclophosphamide, tacrolimus, mycophenolate mofetil and total-body irradiation together with a donor bone marrow transplant works in treating patients with high-risk hematologic cancer. Giving low doses of chemotherapy, such as fludarabine phosphate and cyclophosphamide, and total-body irradiation before a donor bone marrow transplant helps stop the growth of cancer cells by stopping them from dividing or killing them. Giving cyclophosphamide after transplant may also stop the patient’s immune system from rejecting the donor’s bone marrow stem cells. The donated stem cells may replace the patient’s immune system cells and help destroy any remaining cancer cells (graft-versus-tumor effect). Sometimes the transplanted cells from a donor can also make an immune response against the body’s normal cells. Giving tacrolimus and mycophenolate mofetil after the transplant may stop this from happening

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