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RHAMM marks proliferative subpopulation within CD44+ human colorectal cancer stem cells

ABSTRACT: RHAMM marks proliferative subpopulation within CD44+ human colorectal cancer stem cells

PROVIDER: PRJNA573882 | ENA |

REPOSITORIES: ENA

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RHAMM marks proliferative subpopulation within CD44+ human colorectal cancer stem cells

Project description:We report the novel cell surface marker RHAMM that marks proliferative subpopulation within CD44+ conventional CSCs fraction, that will lead to further understanding of tumor heterogeneity and therapeutic implication.

2021-03-01 | GSE137919 | GEO

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

Expression data of CD24-CD44+ and ALDH+ cells

Project description:It has been suggested that breast cancers are driven and maintained by a cellular subpopulation with stem cell properties. These breast cancer stem cells (BCSCs) mediate metastasis and by virtue of their resistance to radiation and chemotherapy, contribute to relapse. Although several BCSC markers have been described, it is unclear whether these markers identify the same or independent BCSC populations. Based on established breast cancer cell lines, as well as primary tumor xenografts, we show that BCSCs exist in distinct mesenchymal-like (epithelial-mesenchymal transition, EMT) and epithelial-like (mesenchymal-epithelial transition, MET) states characterized by expression of distinct markers, proliferative capacity and invasive characteristics. The gene expression profiles of mesenchymal-like and epithelial-like BCSCs are remarkably similar across the different molecular subtypes of breast cancer and resemble those of distinct basal and luminal stem cells found in the normal breast. We propose that the plasticity of BCSCs allowing them to transition between EMT- and MET-like states endows these cells with the capacity for tissue invasion, dissemination and growth at metastatic sites. Breast cancer cell lines, primary xenografts and normal breast cells from patient were sorted using flow cytometry to select for cells that were CD24-,CD44+ and ALDH+. Gene expression profiles of CD24-CD44+ cells were compared with non-CD24-CD44+ cells. Gene expression profiles of ALDH+ cells were compared with ALDH- cells.

2013-11-13 | E-GEOD-52262 | biostudies-arrayexpress

Mex3a Marks a Slowly Dividing Subpopulation of Lgr5+ Intestinal Stem Cells

Project description:The intestinal epithelium is continuously regenerated by highly proliferative Lgr5+ intestinal stem cells (ISCs). The existence of a population of quiescent ISCs has been suggested yet its identity and features remain controversial. Here we describe that the expression of the RNA-binding protein Mex3a labels a subpopulation of Lgr5+ cells that divide less frequently and contribute to regenerate all intestinal lineages with slow kinetics. Single cell transcriptomic analysis revealed two classes of Lgr5-high cells, one of them defined by the Mex3a-expression program and by low levels of proliferation genes. Lineage tracing experiments show that large fraction of Mex3a+ cell population is continuously recalled into the rapidly dividing self-renewing ISC pool in homeostatic conditions. Chemotherapy and radiation target preferentially rapidly dividing Lgr5+ cells but spare the Mex3a-high/Lgr5+ population, which helps sustain the renewal of the intestinal epithelium during treatment.

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Project description:Age-related Islet Inflammation Marks the Proliferative Decline of Pancreatic Beta-cells in Zebrafish

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Evaluation of gene expression between CD44+ and CD44- cells in colonospheres

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microRNA expression profiles in CD44- and CD44+ hepatocellular carcinoma HuH7 cells

Project description:To investigate the significance of CD44+ hepatocellular carcinoma (HCC) HuH7 cells, microRNA (miRNA) expression profiles of CD44-positive HuH7, CD44-negative HuH7, and human nomal hepatocyes were analyzed. Results provide the insight into the significance of CD44-positive HCC cells as the liver CSCs.

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