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Comparison of gene expression patterns between Lgr5 positive cells and CD24 hi cells in murin colon

ABSTRACT: Using Lgr5_EGFP-ires-CreERT2 allows us to sort colonic stem cells and CD24 positive cell are subpopulation of Goblet cells in colon

OTHER RELATED OMICS DATASETS IN: PRJNA267122

ORGANISM(S): Mus musculus

PROVIDER: GSE63365 | GEO | 2016/10/05

SECONDARY ACCESSION(S): PRJNA267566

REPOSITORIES: GEO

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Differences between CD44+/CD24- and CD44-/CD24+ subpopulation of immortalized human mammary epithelial cells

Project description:CD44+/CD24- subpopulation of normal and cancerous breast epithelial cells are suggested to have stem cell properties. The goal of this study was to identify gene expression differences between CD44+/CD24- and CD44-/CD24+ subpopulation of cells from a same cell lines. We selected MCF-10A cells, which are immortalized derived from a fibrocystic breast disease. These cells are immortalized but not transformed and express basal cell markers. Cells were from a single sort but plated into four 100 mm plates. RNA was prepared from each plate separately for the analysis. Comparison of gene expression between 2 groups ( CD44+/CD24- and CD44-/CD24+) 4 replicates each.

2010-03-07 | E-GEOD-15192 | biostudies-arrayexpress

Differences between CD44+/CD24- and CD44-/CD24+ subpopulation of immortalized human mammary epithelial cells

2010-03-01 | GSE15192 | GEO

Transcriptome characterization of the mouse Lgr5+_MaSCs

Project description:Lgr5 positive and negative MaSC enriched P4 subpopulation were isolated from virgin Lgr5-EGFP-IRES-CreERT2 mice. The transcriptome profiles of the cells are compared to elucidate the molecular mechanism Lgr5+_MaSCs as a more defined MaSCs subpopulation within the P4 (MaSC and basal progenitor enriched popuation).

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CD24+ and CD24- myeloma-derived cancer stem cell lines

Project description:Expression profiling of CD24+ and CD24- population cells from myeloma cell lines. Results provide insight into the role of CD24+ cells in myeloma development. Keywords: multiple myeloma, cancer stem cell, CD24

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Paneth cells constitute the niche for Lgr5 stem cells in intestinal crypts

Project description:Homeostasis of self-renewing small intestinal crypts results from neutral competition between Lgr5 stem cells, small cycling cells located at crypt bottoms1, 2. Lgr5 stem cells are interspersed between terminally differentiated Paneth cells, that are known to produce bactericidal products such as lysozyme and cryptdins/defensins3. Single Lgr5-expressing stem cells can be cultured to form long-lived, self-organizing crypt-villus organoids in the absence of non-epithelial niche cells4. Here, we note a close physical association of Lgr5 stem cells with Paneth cells in vivo and in vitro. CD24+ Paneth cells express EGF, TGF?, Wnt3 and the Notch-ligand Dll4, all essential signals for stem cell maintenance in culture. Co-culturing of sorted stem cells with Paneth cells dramatically improves organoid formation. This Paneth cell requirement can be substituted by a pulse of exogenous Wnt. Genetic removal of Paneth cells in vivo results in the concomitant loss of Lgr5 stem cells. In colon crypts, CD24+ cells residing between Lgr5 stem cells may represent the Paneth cell equivalents. We conclude that Lgr5 stem cells compete for essential niche signals provided by a specialized daughter cell, the Paneth cell. We used intestinal cell fractions from Lgr5-EGFP-ires-CreERT2 mice, expressing GFP under the control of the Lgr5 promoter. RNA was isolated from two FACS sorted cell populations: stem cells were sorted based on high level of GFP expression (GFPhi) and Paneth cells were sorted based on high level of CD24 expression (CD24hi) and high side-scatter (SSChi). Differentially labelled cRNA from GFPhi and CD24hi/SSChi cells from two different sorts (each combining ten individual mice) were hybridized on 4X44K Agilent Whole Mouse Genome dual colour Microarrays (G4122F) in two dye swap experiments, resulting in four individual arrays.

2010-11-29 | E-GEOD-25109 | biostudies-arrayexpress

CD24+ and CD24- myeloma-derived cancer stem cell lines

Project description:CD24+ and CD24- myeloma-derived cancer stem cell lines

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Identification of CD24 interaction partners in urologic tumor cell lines

Project description:Being involved in adhesion, migration, and invasion, the highly glycosylated signal transducer CD24 (cluster of differentiation 24) has been implicated to play an essential role during carcinogenesis. Previously, the molecular and (epi)genetic regulation of CD24 has been characterized in testicular germ cell tumors (GCT). Here, CD24 was exclusively found in embryonal carcinoma (EC), which represents the stem cell like population of GCT (see project PXD025110). For a better understanding of the molecular function of CD24, this study aimed at the identification of the direct interaction partners of CD24 not only in GCTs, but also in other urologic malignancies, such as urothelial- (UC), prostate- (PC), and renal cell carcinoma (RCC). For this purpose, co-immunoprecipitations of CD24 were performed in GCT, UC, PC, and RCC cell lines, while CD24-deficient EC cells as well as IgG2a controls were included for high validity. Extracted proteome was measured by liquid-chromatography coupled with mass spectrometry (LS-MS).

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Expression data from WT CD24+CD172a+ cDC2s, WT CD24–CD172+ cDC2s, and WT CD24+CD172a– cDC1s

Project description:Expression data from WT CD24+CD172a+ cDC2s, WT CD24–CD172+ cDC2s, and WT CD24+CD172a– cDC1s

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COMPARATIVE TRANSCRIPTOMIC AND PROTEOMIC ANALYSIS OF LGR5+ve STEM CELLS AND THEIR DAUGHTERS (AFFYMETRIX ARRAYS)

Project description:The identification of Lgr5 as an intestinal stem cell marker has made it possible to isolate and study primary intestinal stem cells. Applying quantitative mass spectrometry as well as transcriptomic analysis, we profiled the protein and gene changes between FACS-sorted Lgr5+ve stem cells and their immediate undifferentiated daughter cells. The overall comparison of mRNA and protein levels revealed a high level of correlation, implying that the initial control of intestinal stem cell biology occurs largely at the mRNA level. Taken together, our study presents a valuable resource for the study of intestinal stem cell biology. We used cell fractions of intestines from Lgr5-EGFP-ires-CreERT2 mice, expressing GFP under the control of the Lgr5 promoter. RNA was isolated from two FACS sorted cell populations, one expressing GFP at high levels (GFPbright) and the other expressing GFP at low levels (GFPdim). The gates set to sort cells for the expression profiling were the same as for the cells used for the mass spectometry analysis. cRNA from GFPbright and GFPdim cells from three different sorts (each combining three to four mice) were hybridized on Affymetrix Mouse HT MG-430 PM plate arrays.

2012-08-12 | E-GEOD-33948 | biostudies-arrayexpress

Dll1 marks early secretory progenitors in gut crypts that can revert to stem cells upon tissue damage

Project description:The introduction of GFP into the Dll1 locus has made it possible to isolate and study primary intestinal Dll1 positive cells, which constitute the secretory cell precursors of the intestine. Applying DNA array technology, we profiled the RNA changes of FACS-sorted Dll1_high/CD24_low, Dll1_high/CD24_medium and Dll1_high/CD24_high cells . We used cell fractions of intestines from Dll1-EGFP-ires-CreERT2 mice, expressing GFP under the control of the Dll1 promoter. RNA was isolated from three FACS sorted cell populations: all are expressing Dll1-GFP at high levels, but are expressing different levels of Cd24 (low, medium and high). For this set two biological replicates were generated. One additional fraction was isolated from Lgr5-EGFP-ires-CreERT2 mice, expressing GFP under the control of the Lgr5 promoter. This cell fraction contains intestinal stem cells. Differentially labelled cRNA from these cell fractions was hybridized against a reference (RNA isolated from whole intestine) on 4X44K Agilent Whole Mouse Genome dual colour Microarrays (G4122F).

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