Homo sapiens
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Project description:Comparison of gene expression profiles between IGFBP-2-knockdown and control glioblastoma cell line YKG-1
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Project description:Genome wide DNA methylation profiling of control and mTORC2-suppressed glioblastoma cells (U87-EGFRvIII cells). The Illumina Infinium HumanMethylation EPIC BeadChip Array was used to obtain DNA methylation profiles with 865,918 probes in glioblastoma cell line samples. Samples included 2 control U87-MG cells without mTORC2 suppresion, and mTORC2-knockdown U87-MG cells with lentivirus-mediated suppression of mTORC2.
2024-03-20 | GSE235207 | GEO
Project description:Gene expression analysis of U251 human glioblastoma cell line
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Project description:PD-L1 (CD274) overexpression effect on glioblastoma cell line U251
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Project description:Glioma is a malignant primary tumour that occurs in the central nervous system. TEA domain transcription factor (TEAD) family proteins are the Hippo pathway's ultimate effector molecules. The function of TEAD3 in gliomas is still unclear. Therefore, RNA sequencing was performed on TEAD3 knockdown U251 cells and normal U251 cells. The samples in this study included normal U251 control group and TEAD3 knockdown group. Each group contained three samples. Total RNA was extracted using Trizol reagent following the manufacturer's procedure. The total RNA quantity and purity were analysis of Bioanalyzer 2100 and RNA 6000 Nano LabChip Kit, high-quality RNA samples with RIN number > 7.0 were used to construct sequencing library. Gene Set Enrichment Analysis (GSEA) based on the sequencing results showed that knockdown of TEAD3 in the U251 cell line caused changes in several important pathways, including CTLA4 inhibitory pathway, defective pyroptosis, signaling by Hippo, regulation of TP53 activity, E2F mediated regulation of DNA replication, and FCGR3A mediated phagocytosis.
2023-01-25 | GSE223378 | GEO
Project description:The expression profiling of a total of 34181 mRNAs in 3 paired U251 cell line, which had been stable knockdown the expression of LINC01116.
2018-08-31 | GSE103455 | GEO
Project description:Glioma stem cells (GSCs) have been identified in glioma tissues and suggested to play important roles in the tumorigenesis of glioblastoma multiform (GBM). We established a novel cellular bioinformative pipeline that consisted of principal component analysis (PCA) with factor loading, intracellular pathway analysis, and immunopathway analysis and attempted to clarify the differences in gene expression profiles comprehensively among GSCs, a glioma cell line (U251), and a human GBM tissue (hGBM). To this end, we extracted total RNAs from the GSCs, U251, and the hGBM, performed microarray, and applied the data to the bioinformatics analyses described above. As the results, PCA clearly distinguished the three groups. Moreover, the second principal component (PC2) distinguished the GSCs from the hGBM and U251; it reflected the characteristics of stemness. The factor loading for PC2 suggested MYCN, DPP4, and, MIF as contributing factors to the stemness of GSCs. We clarify the similarities and differences among samples such as the GSCs, U251, and hGBM.
2019-07-01 | GSE124145 | GEO
Project description:mRNA expression profiling in human brain glioblastoma cell line U251 after stable knockdown the expression of linc01116
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Project description:Our goal is to investigate the effects of CD44 knockdown alone and in combination with Temozolomide on glioblastoma multiforme cells. To achieve this, we treated U251 cells that had been transfected with either shCtrl lentivirus or shCD44 lentivirus with either DMSO or Temozolomide.
2023-08-31 | GSE225869 | GEO
Project description:The objective of the study was to examine the gene expression changes in glioma cell line U87 and U251 with LAMP2A knockdown. There were 15 samples in total- U87-1, U87-2, U87-3, U87-1812-1, U87-1812-2, U87-1812-3, U251-1, U251-2, U251-3, U251-1812-1, U251-1812-2, U251-1812-3, U251-1813-1, U251-1813-2, and U251-1813-3. U87-1 to U87-3 and U251--1 to U251-3 were used as the control groups (CON). U87-1812-1 to U871812-3, U251-1812-1 to U251-1812-3, and U251-1813-1 to U251-1813-3 were used as the experimental groups (shLAMP2A-1 and shLAMP2A-2). The total RNA of each sample was extracted from the stable transfected glioma cells by using TRIzol reagent. Then the RNA samples were processed for high throughput transcriptome sequencing on Illumina HiSeq 3000 platform. There were two types of libraries: the circRNA, mRNA, and lncRNA were all constructed by removing rRNA (one library, three types of RNA were analyzed together), and the insert fragment was about 300bp; the small RNA was constructed and analyzed separately, mainly microRNA of about 22bp. Results: among 60612 cleaned mRNAs, 781 were differentially expressed in U87-1812 group compared with U87 group, 146 were differentially expressed in U251-1812 group compared with U251 group, 43 were differentially expressed in U251-1813 group compared with U251 group (padj ≤ 0.05 and expression change ≥2 fold). The differential expressed genes distributed in all chromosomes. Functional annotation with GO and KEGG enrichment revealed the top functional groups including inflammation, DNA replication, cell adhesion, TNF, IL17, and axon guidance signaling pathways.
2024-07-15 | GSE270618 | GEO