Single cell RNA-seq analysis for early erythroblasts in spleen and bone marrow (BM) with or without mitochondria transfer
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE185267 | GEO | 2022/09/08
REPOSITORIES: GEO
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Project description:Transcriptome analysis of total RNA samples from FACS sorted erythroblasts To further verify the role of cytokine triggered inflammation signaling in erythropoiesis, we decided to follow the profile of gene expression in erythroblasts using DNA microarrays. To elucidated the gene expression pattern in cytokine, especially IL-6, challenged erythroblasts, in vitro IL-6 treated erythroblasts in EPO containing medium both at day 1 and day 2 were collected. We also sorted the erythroblasts at different stages (Proerythroblasts(I),Basophilic(II) and polychromatic(III) erythroblasts,Orthochromatic(IV) erythroblasts) from both DWT and DKO bone marrow cells through fluorescence activated cell sorting. Total RNA were extracted and processed to hybridize with Affymetrix mouse Clariom S microarrays.
2017-09-09 | GSE98375 | GEO
Project description:Human erythroblasts purified from cord blood were cultured in vitro and FACS-sorted into five highly purified populations representing distinct differentiation stages: proerythroblasts, early basophilic erythroblasts, late basophilic erythroblasts, polychromatophilic erythroblasts, and orthochromatophilic erythroblasts. The methods for culture and sorting experiments are given in Hu et al. 2013. For each RNA-seq library, RNA was isolated from 1x 106 sorted human erythroblasts using RNeasy Plus Mini kits (Qiagen). Libraries were then prepared using Illumina TruSeqTM RNA kits to obtain 50 nt reads. Collaborators at the New Your Blood Center were responsible for erythroblast culture, FACS purification of erythroblast populations, and acquisition of RNA-seq data. Collaborators at U.C. Berkeley and Lawrence Berkeley National Laboratory performed data analysis and experimental validation of alternative splicing in erythroblasts. Results: Differentiating erythroblasts execute a dynamic alternative splicing program that is enriched in genes affecting cell cycle, organelle organization, chromatin function, and RNA processing. Alternative splicing plays a major role in regulating gene expression to ensure synthesis of appropriate proteome at each stage as the cells remodel in preparation for production of mature red cells. Erythroid differentiation stage-specific transcriptome analysis was performed by RNA-seq analysis of highly purified erythroblast populations
2013-12-25 | E-GEOD-53635 | biostudies-arrayexpress
Project description:Human erythroblasts purified from cord blood were cultured in vitro and FACS-sorted into five highly purified populations representing distinct differentiation stages: proerythroblasts, early basophilic erythroblasts, late basophilic erythroblasts, polychromatophilic erythroblasts, and orthochromatophilic erythroblasts. The methods for culture and sorting experiments are given in Hu et al. 2013. For each RNA-seq library, RNA was isolated from 1x 106 sorted human erythroblasts using RNeasy Plus Mini kits (Qiagen). Libraries were then prepared using Illumina TruSeqTM RNA kits to obtain 50 nt reads. Collaborators at the New Your Blood Center were responsible for erythroblast culture, FACS purification of erythroblast populations, and acquisition of RNA-seq data. Collaborators at U.C. Berkeley and Lawrence Berkeley National Laboratory performed data analysis and experimental validation of alternative splicing in erythroblasts. Results: Differentiating erythroblasts execute a dynamic alternative splicing program that is enriched in genes affecting cell cycle, organelle organization, chromatin function, and RNA processing. Alternative splicing plays a major role in regulating gene expression to ensure synthesis of appropriate proteome at each stage as the cells remodel in preparation for production of mature red cells.
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Project description:The supply of red blood cells (RBCs) is not sufficient in many developing countries or in developed countries for patients who need chronic transfusion from best-matched donors. Ex vivo expansion and maturation of human erythroid precursor cells (erythroblasts) could represent a potential solution. Proliferating erythroblasts can be expanded from human umbilical cord blood mononuclear cells (CB MNCs) ex vivo for 10^6-10^7 fold (in ~50 days) before undergoing senescence. Here, we report that ectopic expression of three to four genetic factors that have been used for iPS cell derivation enables CB-derived erythroblasts to undergo extended ex vivo expansion (M-bM-^IM-%10^51 fold in ~9 months) in a defined suspension culture condition without change of cell identity or function. These vastly expanding erythroblasts maintain homogeneously immature erythroblast phenotypes, a normal diploid karyotype and dependence on specific combination of cytokines and hormone for survival and proliferation throughout the continuous expansion period. When switched to a culture condition for terminal maturation, these immortalized erythroblasts gradually exit cell cycle, decrease cell size, accumulate hemoglobin, condense nuclei and eventually give rise to enucleated hemoglobin-containing erythrocytes. Our result may ultimately lead to the development of unlimited sources of cultured RBCs for optimally-matched or personalized transfusion medicine. We compared the global gene expression profiles of different human cell types: iE: immortalized erythroblasts generated by genetic reprogramming from pCBE; pCBE: primary cord blood-derived erythroblasts; CD34+: CD34+ purified hematopoietic stem/progenitor cells from adult blood or fetal liver; TF-1: a human erythroleukemia cell line; ESC: human embryonic stem cells; iPSCs: human induced pluripotent stem cells. We want to see the relationship among these cell types. We included multiple samples (biological replicates) for most cell types.
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Project description:This study analyzes gene expression in beta-thalassemic fetal liver erythroblasts in the Th3 murine model. FACS-purified wild-type, heterozygous, and homozygous stage-matched erythroblasts from E14.5 fetal livers are compared. We used FACS to purify CD71+Ter119+FSChigh matched populations from E14.5 fetal livers of wild-type, Th3/+, and Th3/Th3 embryos
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Project description:In absence of selenium, proerythroblasts exhibited delay in differentation into basophilic erythroblasts during phenylhydrazine induced stress erythropoiesis. This microarray project was aiming to explore gene expression patterns in erythroblasts in the function of selenium status.
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