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CD24-dependent expression of microRNAs in ovarian cancer cells

ABSTRACT: CD24-dependent expression of microRNAs in ovarian cancer cells

PROVIDER: PRJNA691894 | ENA |

REPOSITORIES: ENA

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CD24-dependent expression of microRNAs in ovarian cancer cells

Project description:To understand whether CD24, a potential marker for ovarian cancer stem cells,-dependent microRNA expression affects ovarian cancer stemness, microRNA expression was compared between CD24-negative and CD24-positive ovarian cancer cells.

2023-12-01 | GSE164748 | GEO

microRNAs in ovarian cancer cell spheroids

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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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Identifying and targeting angiogenesis-related microRNAs in ovarian cancer

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Molecular and epigenetic characterization of the signal transducer CD24 in germ cell tumors

Project description:Type II germ cell tumors (GCTs) are with more than 90% the most common neoplasia in young men of age 14 - 45 years. It is generally accepted that GCTs arise from a common precursor lesion, called germ cell neoplasia in situ (GCNIS), eventually developing into seminomas or non-seminomas. The non-seminomatous stem-cell like embryonal carcinomas (EC) can further differentiate into teratomas (TE), yolk sac tumors (YST), or choriocarcinomas (CC). Orchiectomy followed by chemo- or radiotherapy is a widely used procedure in the treatment of type II GCTs, leading to high cure rates of up to 90%. Nevertheless, about 10 - 15% of patients with progressive disease relapse as a result of drug resistance and are condemned for a poor prognosis and a short survival of only a few months. Cluster of differentiation 24 (CD24) is a small, mucin-like glycosylphosphatidylinositol (GPI) anchored membrane molecule that functions both, in signal transduction and as an adhesion molecule. This glycoprotein is mainly expressed on the surface of hematopoietic, neural, muscular, and epithelial cells. Moreover, CD24 has been implicated in tumor metastasis, as fucosylated CD24 interacts with P- and E-selectin, allowing invasion of tumor cells to distal sites. High expression or amplifications of CD24 has been described in a variety of solid malignancies, such as non-small cell lung carcinoma, gliomas, breast cancer, retinoblastoma, hepatocellular carcinoma, renal cell carcinoma, cervical carcinoma, prostate cancer, urothelial carcinoma, pineal parenchymal tumors, and ovarian cancer. In this study, we investigated the putative function of CD24 and its interaction partners in (cisplatin-resistant) GCT cell lines by generating CD24-deficient EC cells by CRISPR/Cas9-mediated gene editing. Changes in the proteome between CD24-deficient cells and parental cells were measured by liquid-chromatography coupled with mass spectrometry (LS-MS).

2022-01-19 | PXD025110 | Pride

Plasma small extracellular vesicles microRNAs profile in advanced ovarian cancer

Project description:Plasma small extracellular vesicles microRNAs profile in advanced ovarian cancer

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Plasma small extracellular vesicles microRNAs profile in advanced ovarian cancer

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Estrogen regulated microRNAs in mouse ovarian cancer cells.

Project description:In a mouse model of ovarian cancer, we have established that prolonged exposure to 17β-estradiol (E2) accelerates tumour onset and increases the incidence of morphologically dysplastic ovarian surface epithelium (OSE). OSE cell proliferation and morphology are tightly regulated by the asymmetrical distribution of polarity proteins that provide positional cues for surface localization and growth inhibition. We hypothesized that E2 causes OSE dysplasia by inhibiting a tumour suppressor gene called Disabled-2 (Dab2). Dab2 is critical in mediating the polarized distribution of cell surface proteins and is highly expressed in normal OSE, but is absent in the majority of ovarian cancers. In this study, Dab2 is shown to be suppressed by E2 and we investigated the possibility that this occurs through E2 up-regulation of microRNAs. microRNA microarray analysis comparing control vs. E2 treated mouse ovarian cancer cells (MASE) was used to identify candidate miRNAs that have a seeding sequence capable of targeting the 3-prime untranslated region (3’UTR) of both human and mouse Dab2 transcript.

2017-11-30 | GSE98391 | GEO

Identification of mRNAs modulated by knockdown of CD24

Project description:We endeavored to identify factors and pathways regulated by CD24 and to obtain leads regarding the mechanism by which CD24 inhibited the invasiveness and metastasis of pancreatic cancer cells by performing cDNA microarray analysis on S2-013 CD24 RNAi clones and control clones. The group of genes showing increased expression was mainly comprised of genes for molecules with functions related to RNA metabolism, transcription factors, proteases, and molecules involved in embryonic development and cell growth. The set of genes downregulated by knockdown of CD24 included the target mRNAs of a phosphorylation-dependent endoribonuclease G3BP that interacted with CD24. The target mRNAs of G3BP were identified in GSE17056. These results suggested that CD24 inhibited the RNase activity of G3BP, and that a function of CD24 was to inhibit the degradation of specific mRNAs.

2009-07-23 | GSE17055 | GEO

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