StRNA-seq of brain glioblastoma sample
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PROVIDER: PRJNA1141153 | ENA |
REPOSITORIES: ENA
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Project description:scRNA-seq of brain glioblastoma sample
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Project description:Proneural-mesenchymal transition (PMT) is a phenotypic alteration and contributes to therapeutic resistance and recurrence of glioblastoma (GBM). Macrophages, as a main infiltrating component of tumor immune microenvironment (TIM), can regulate the biological processes of PMT. However, the mechanisms driving this process remain largely unknown. Here, We performed single-cell RNA sequencing (scRNA-seq) (3V3) and Spatial transcriptomics RNA sequencing(stRNA-seq)(1V1) from tumor core and matching tumor periphery samples to discripe the overall landscape of tumor and nontumor cells in gliomas.
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Project description:Proneural-mesenchymal transition (PMT) is a phenotypic alteration and contributes to therapeutic resistance and recurrence of glioblastoma (GBM). Macrophages, as a main infiltrating component of tumor immune microenvironment (TIM), can regulate the biological processes of PMT. However, the mechanisms driving this process remain largely unknown. Here, We performed single-cell RNA sequencing (scRNA-seq) (3V3) and Spatial transcriptomics RNA sequencing(stRNA-seq)(1V1) from tumor core and matching tumor periphery samples to discripe the overall landscape of tumor and nontumor cells in gliomas.
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Project description:Single cell RNA-seq of brain glioblastoma samples
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Project description:This multi-site, Phase 1/2 clinical trial is an open-label study to identify the safety, pharmacokinetics, and efficacy of a repeated dose regimen of NEO212 for the treatment of patients with radiographically-confirmed progression of Astrocytoma IDH-mutant, Glioblastoma IDH-wildtype, and the safety, pharmacokinetics and efficacy of a repeated dose regimen of NEO212 when given with select SOC for the treatment of solid tumor patients with radiographically confirmed uncontrolled brain metastasis. The study will have three phases, Phase 1, Phase 2a and Phase 2b.
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Project description:MicroRNAs (miRNAs) are small (21-25 nucleotide in length) non-coding RNA molecules that negatively regulate protein expression. They are linked to cancer development and maintenance. In this work, studying gene expression profiles of 340 mammalian miRNAs with DNA microarrays, we selected 10 miRNAs gene features able to distinguish primary from secondary glioblastoma type; furthermore we verified that miR-21 and miR-155 up-regulatation seems to characterize the glioblastoma tumour state since it was found up-regulated in all samples analyzed compared to adult brain noneoplastic tissue. Since miR-21 function in glioblastoma cells was addressed previously we concentrated our efforts on miR-155 function. We found that miR-155 levels were markedly elevated both in primary and secondary glioblastomas tumours, in glioblastoma cell cultures and in 4 glioblastoma cell lines (U87, A172, LN229, and LN308) compared with adult brain tissue, CHP212-neuroblastoma cell lines and DAOY-1-medulloblastoma cell line. Since one of the miR-155 target was gamma-aminobutyric acid (GABA) A receptor (GABRA1) we verified if there was a relation between miR-155 up-regulation and GABRA1 expression. We demonstrated that, in cultured glioblastoma cells, knockdown of miR-155, which lower miR-155 expression to normal level, restore the normal expression of the gamma-aminobutyric acid (GABA) A receptor (GABRA1), making glioblastoma cells responsive to GABA cell cycle inhibiting signals. Our data suggest that aberrantly over-expressed miR-155 contribute to the malignant phenotype of the glioblastoma cells, promoting their unlimited growth. Keywords: miRNA expression profile We studied the expression profiles of 340 miRNAs in 97 glioblastoma tissues, of which 66 were primary glioblastomas and 27 were secondary glioblastomas. We have 66 replicates of primary glioblastoma and 27 replicates of secondary glioblastoma, each hybridized with the respective adult non-neoplastic brain tissue as a control.
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2018-04-24 | E-MTAB-5541 | biostudies-arrayexpress
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Project description:Glioblastoma is the most common type of malignant brain tumor among adults. We used single-cell RNA sequencing (scRNA-seq) to analyze the diversity of glioblastoma cells.
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