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Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma

ABSTRACT: Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma

PROVIDER: PRJNA833879 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19023600_1.fastq.gz	Fastqsanger.gz
	SRR19023600_2.fastq.gz	Fastqsanger.gz
	SRR19023601_1.fastq.gz	Fastqsanger.gz
	SRR19023601_2.fastq.gz	Fastqsanger.gz
	SRR19023602_1.fastq.gz	Fastqsanger.gz

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Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma [TAMs RNA-seq]

Project description:Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma [TAMs RNA-seq]

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Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma [Tumor RNA-seq]

Project description:Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma [Tumor RNA-seq]

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Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma [BMDMs RNA-seq]

Project description:Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma [BMDMs RNA-seq]

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Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma [TAMs RNA-seq]

Project description:We found that TAMs in the glioblatoma (GBM) tumor microenvironment are enriched for cholesterol and highly express ABCA1/G1. To investigate the biological effects of enhancing cholesterol efflux of TAMs in GBM, we constructed APOA1-overexpressing GL261 cell line. We harvested tumor tissue and sorted these TAMs by anti-mouse F4/80 magnetic beads 17 days after intracranial transplantation of GL261-APOA1 cell line and control cells in immunocompetent C57 mice. Samples were subjected to transcriptome sequencing.

2022-05-04 | GSE201975 | GEO

Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma [BMDMs RNA-seq]

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Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma [Tumor RNA-seq]

Project description:We found that overexpression of APOA1 in glioblastoma (GBM) promotes cholesterol efflux from TAMs and restores phagocytosis and antigen presentation. Therefore, we constructed a recombinant oncolytic adenovirus expressing APOA1 to carry the cholesterol regulatory elements of TAMs. AdV-APOA1 exhibited better antitumor effects than AdV-Ctrl in several orthotopic GBM tumor models. Further, we collected virus-treated GL261-CAR tumors for RNA-seq to reveal differences in biological processes between them. Specifically, intracranial 14-day GL261-CAR-bearing C57BL/6J mice were i.t. injected with 1 × 108 PFU AdV-Ctrl or 1 × 108 PFU AdV-APOA1. The tumor bulks were then collected to perform transcriptome RNA-seq analysis 3 days after virus injection.

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Apolipoprotein A1-Manipulated Cholesterol Efflux Subverts the Phagocytic Fragility of TAMs and Improves Oncolytic Viro-Immunotherapy in Glioblastoma

Project description:This SuperSeries is composed of the SubSeries listed below.

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Gene expression profiles of tumor-associated macrophages (TAMs) overexpressing miR-511-3p

Project description:Hematopoietic stem/progenitor cells (HS/PCs) were transduced with lentiviral vectors overexpressing OFP and either miR-511-3p or a control, mutated miRNA sequence (miR-511-3p-mut). The transduced HS/PCs were then transplanted in recipient C57BL/6 mice. Tumors (Lewis lung carcinomas, LLC) were injected s.c. 4 weeks after HS/PC transplant. Lentiviral vector-transduced (OFP+), tumor-associated macrophages (TAMs) were isolated 4 weeks after LLC injection by fluorescence-activated cell sorting. Gene expression profiles of TAMs overexpressing either miR-511-3p or miR-511-3p-mut were obtained from 3 independent biological samples/each. Gene expression profiles of miRNA-overexpressing TAMs were then compared with the gene expression profiles of wild-type TAMs isolated from LLCs grown in nontransplanted C57BL/6 mice; the latter TAMs were subfractioned into MRC1+CD11c(low) or CD11c+MRC1(low) subsets before RNA isolation and analysis. Comparison of gene expression profiles of TAMs revealed that miR-511-3p overexpression tunes down the expression of multiple genes that are classically upregulated in protumoral MRC1+CD11c(low) TAMs. TAMs were isolated from Lewis lung carcinomas grown s.c. in C57BL/6 mice.

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Project description:CIDR_Genetic Determinants of Bone Fragility

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