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Mitochondrial activity dictates definitive hematopoietic stem cell production and lympho-myeloid lineage segregation during mouse mouse embryogenesis [bulkRNAseq]

ABSTRACT: Mitochondrial activity dictates definitive hematopoietic stem cell production and lympho-myeloid lineage segregation during mouse mouse embryogenesis [bulkRNAseq]

PROVIDER: PRJNA1147167 | ENA |

REPOSITORIES: ENA

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Mitochondrial activity dictates definitive hematopoietic stem cell production and lympho-myeloid lineage segregation during mouse embryogenesis [scRNAseq]

Project description:Mitochondrial activity dictates definitive hematopoietic stem cell production and lympho-myeloid lineage segregation during mouse embryogenesis [scRNAseq]

| PRJNA1147170 | ENA

Mitochondrial activity dictates definitive hematopoietic stem cell production and lympho-myeloid lineage segregation during mouse mouse embryogenesis [bulkRNAseq]

Project description:Mitochondrial metabolism determines bone marrow hematopoietic stem cell (HSC) heterogeneity, and influences long-term blood repopulation potential.Self-renewal and multilineage engraftment capacity of hematopoietic stem cells (HSCs) are key properties leveraged for their clinical use in bone marrow transplantation. Variations in long-term blood reconstitution ability are partly attributed to the functional heterogeneity in HSCs, which is influenced by the dynamic mitochondrial metabolic state, in addition to differences in gene expression. However, when and how this mitochondrial regulation of definitive HSCs originates is unexplored. Whether metabolic variation is an outcome of the diverse HSC milieu, or an inherent property of the emergent HSCs, is not known. Here, Wwe show that dynamic changes in mitochondrial activity during endothelial to hematopoietic transition (EHT) drives the production of mature HSCs in the mouse embryo. Pharmacological and genetic manipulations show that hematopoietic emergence during the endothelial to hematopoietic transition (EHT) in the aorta-gonad-mesonephros (AGM) region involves mitochondrial remodelling. reduced mitochondrial activity activates Wnt signalling to promote expansion of mature HSCs in the AGM. Further, single cell transcriptomics and functional assays uncovered mitochondrial membrane potential (MMP) driven functional heterogeneity within the mature HSC pool. MMPlow HSCs are myeloid-biased and exhibit enhanced differentiation potential. Contrarily, MMPhigh HSCs are lymphoid-biased with diminished differentiation potential. Mechanistically, low mitochondrial activity upregulates PI3K signalling to fuel embryonic HSC differentiation. We provide insights into the metabolic regulation of HSC origin and function, that can be leveraged to direct HSC fate decisions for clinical interventions.

2024-08-27 | GSE274537 | GEO

Mitochondrial activity dictates definitive hematopoietic stem cell production and lympho-myeloid lineage segregation during mouse embryogenesis [scRNAseq]

Project description:Mitochondrial metabolism determines bone marrow hematopoietic stem cell (HSC) heterogeneity, and influences long-term blood repopulation potential. However, when and how this mitochondrial regulation of definitive HSCs originates is unexplored. We show that dynamic changes in mitochondrial activity during endothelial to hematopoietic transition (EHT) drives the production of mature HSCs in the mouse embryo. Pharmacological and genetic manipulations show that reduced mitochondrial activity activates Wnt signalling to promote expansion of mature HSCs in the AGM. Further, single cell transcriptomics and functional assays uncovered mitochondrial membrane potential (MMP) driven functional heterogeneity within the mature HSC pool. MMPlow HSCs are myeloid-biased and exhibit enhanced differentiation potential. Contrarily, MMPhigh HSCs are lymphoid-biased with diminished differentiation potential. Mechanistically, low mitochondrial activity upregulates PI3K signalling to fuel embryonic HSC differentiation. We provide insights into the metabolic regulation of HSC origin and function, that can be leveraged to direct HSC fate decisions for clinical interventions.

2024-08-27 | GSE274538 | GEO

Lympho-myeloid contribution of an immune-restricted progenitor emerging prior to definitive hematopoietic stem cells

2013-11-26 | GSE50896 | GEO

Lympho-myeloid contribution of an immune-restricted progenitor emerging prior to definitive hematopoietic stem cells

Project description:An immune-restricted lymphomyeloid-primed progenitor with the capacity to contribute to both myeloid and lymphoid lineages in the developing embryo emerges prior to definitive HSCs. Examination of fetal sorted lymphoid primed progentors and adult progenitors The fastq files are not provided at this time due to further analyses.

2013-11-26 | E-GEOD-50896 | biostudies-arrayexpress

bulkRNAseq

Project description:bulkRNAseq

| OEX00028459 | NODE

Emergence and patterning dynamics of mouse definitive endoderm

Project description:Emergence and patterning dynamics of mouse definitive endoderm

| PRJNA782003 | ENA

LXR signaling controls homeostatic dendritic cell maturation [BulkRNAseq]

Project description:LXR signaling controls homeostatic dendritic cell maturation [BulkRNAseq]

| PRJNA950098 | ENA

Gene expression data from mouse ES cell-derived primitive NSCs and definitive NSCs

Project description:Primitive neural stem cells (NSCs) could be derived from pluripotent mouse embryonic stem (ES) cells, and then differentiate into definitive-type neural stem cells which resemble NSCs obtained from the central nervous system. Hence, primitive NSCs define an early stage of neural induction and provide a model to understand the mechanism that controls initial neural commitment. In this study, we performed microarray assay to analyze the global transcriptional profiles in mouse ES cell-derived primitive and definitive NSCs and to depict the molecular changes during the multi-staged neural differentiation process.

2014-03-01 | GSE44608 | GEO

Definitive Screening Design to Improve Data-Independent MS Analysis of Neuropeptides

Project description:A definitive screening design was used to systematically optimize a DIA workflow for crustacean neuropeptide quantitation. We were able to assess several parameters for their effect on increasing quantifiable neuropeptides and predict the optimal value for these parameters.

2023-05-10 | PXD038520 | Pride

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