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

ABSTRACT: 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.

ORGANISM(S): Homo sapiens

PROVIDER: GSE137919 | GEO | 2021/03/01

REPOSITORIES: GEO

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

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

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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

Identification of gene signature in human colorectal CD44+ cancer stem cells

Project description:We prospectively isolated human colorectal CD44+ cancer stem cells (CSCs) from organoids and primary colorectal cancer. The gene expression of CD44+ CSCs are relevant to each other between organoids and primary tissues. The common gene signature in two different modality identifies CSCs' properties with the biological significance shown in original article.

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

Project description:To investigate the significance of CD44+ hepatocellular carcinoma (HCC) HuH7 cells, gene 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.

2016-09-01 | GSE84223 | GEO

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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CD98 marks a subpopulation of head and neck squamous cell carcinoma cells with stem cell properties

Project description:The application of compounds specifically targeting the cancer stem cells (CSCs), in addition to routinely used therapeutics, would likely improve the clinical outcome of head and neck squamous cell carcinoma (HNSCC). The previously described monoclonal antibody K984 (now found to recognize CD98) was used to identify, select and isolate a specific tumor subpopulation. These cells were molecularly characterized and subjected to serial transplantation experiments to determine the CSC properties. We show that CD98high cells, in contrast to CD98low cells, are able to generate tumors in immunodeficient mice and that the CD98high subpopulation expresses high levels of cell cycle control and DNA repair genes, while the CD98low fraction shows expression patterns that represent the more differentiated cells forming the bulk of the tumor. Transcriptional profiling of CD98high cells (n=4 fractions) of VU-SCC-OE xenograft tumors compared to CD98low cells (n=3 fractions) from the corresponding tumors.

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CD98 marks a subpopulation of head and neck squamous cell carcinoma cells with stem cell properties

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Expression profiles of CD24-/CD44+/ESA+ population in MDA-MB-231 and its highly metastatic variants.

Project description:Breast cancer is a curable disease if it is diagnosed at an early stage. However, only little options are left once the tumor is metastasized to distant organs, and more than 90% of breast cancer death is attributed to metastatic disease. The process of metastasis is highly complex and involves many steps for successful colonization of tumor cells at a target organ. According to the cancer stem cell (CSC) theory, which still remains a hypothesis, these metastatic cells must have stem cell-like capability for their self-renewal in addition to their invasive ability. Therefore, it has been predicted that a “metastatic stem cell”, which is distinct from a cancer stem cell, must exist in the primary tumor mass. To identify genes that are involved in metastasis of CSCs, we isolated CSC populations from a well-established model cell line of breast cancer, MDA-MB231, and that of highly metastatic variants, 231BoM-1833 and 231BrM-2a, using CD24, CD44 and EpCAM (ESA), which have been identified as surface markers for CSCs in breast cancers. Overall yield of CSCs from these cells ranged from 2% to 4%. We then performed global expression profile analysis for these CSCs using the Affymetrix Human Gene 1.0ST array. CSC populations (CD24-/CD44+/ESA+) from MDA-MB231, 231BoM-1833 and 231BrM-2a were isolated by magnetic-activated cell sorting (MACS) using specific antibodies to these surface markers. The total RNA was isolated from the CSC populations using the RNeasy RNA isolation kit (Qiagen). The RNA was then converted to cDNA and they were hybridized to the Human Gene 1.0ST chip (Affymetrix). The data was normalized using the RMA algorithm of the Expression Console software (Affymetrix). A comparison of transcriptional profiles was then performed in CSCs of highly metastatic cell lines (231BoM-1833 and 231BrM-2a) compared to the CSCs of MDA-MB-231.

2011-11-30 | E-GEOD-25976 | biostudies-arrayexpress

CD44+ Lung Cancer Stem Cell-derived Vascular Pericytes Cause Brain Metastases through GPR124-mediated Trans-endothelial Migration [II]

Project description:Brain metastasis of lung cancer causes high mortality, but the exact mechanisms underlying the metastasis remain unclear. Here we report that vascular pericytes derived from CD44+ lung cancer stem cells (CSCs) in lung adenocarcinoma (ADC) potently cause brain metastases through GPR124-mediated trans-endothelial migration (TEM). CD44+ CSCs in the perivascular niche generate the majority of vascular pericytes in lung ADC. CSC-derived pericyte-like cells (Cd-pericytes) exhibit remarkable TEM capacity to effectively intravasate into vessel lumina, survive in the circulation, extravasate into the brain parenchyma, and then de-differentiate into tumorigenic CSCs to form metastases. Moreover, Cd-pericytes uniquely express GPR124, a G-protein-coupled receptor. GPR124 mediates through Wnt7-β-Catenin activation to enhance TEM capacity of Cd-pericytes for intravasation and extravasation, two critical steps during tumor metastasis. Furthermore, selective disruption of Cd-pericytes, GPR124 or Wnt7-β-Catenin signaling markedly reduced brain and liver metastases of lung ADC. Our findings uncover an unappreciated cellular and molecular paradigm driving tumor metastasis.

2023-07-23 | GSE237317 | GEO

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