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Genome-wide analysis of circulating tumor DNA methylation profiles in cerebrospinal fluid: a clinical trial of oncolytic virus for glioblastoma

ABSTRACT: Genome-wide analysis of circulating tumor DNA methylation profiles in cerebrospinal fluid: a clinical trial of oncolytic virus for glioblastoma

PROVIDER: PRJNA846678 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19545402_1.fastq.gz	Fastqsanger.gz
	SRR19545402_2.fastq.gz	Fastqsanger.gz
	SRR19545403_1.fastq.gz	Fastqsanger.gz
	SRR19545403_2.fastq.gz	Fastqsanger.gz
	SRR19545404_1.fastq.gz	Fastqsanger.gz

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Genome-wide analysis of circulating tumor DNA methylation profiles in cerebrospinal fluid: a clinical trial of oncolytic virus for glioblastoma [MeDIP-Seq]

Project description:Genome-wide analysis of circulating tumor DNA methylation profiles in cerebrospinal fluid: a clinical trial of oncolytic virus for glioblastoma [MeDIP-Seq]

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Genome-wide analysis of circulating tumor DNA methylation profiles in cerebrospinal fluid: a clinical trial of oncolytic virus for glioblastoma [mRNA-Seq]

Project description:Background: Glioblastoma (GBM) is a common malignant tumor of the central nervous system (CNS) with a poor prognosis and short survival period. A novel tumor lysing virus, Ad-TD-nsIL-12, has demonstrated good anti-tumor properties in preclinical studies. However, there is still a gap in the treatment of GBM with Ad-TD-nsIL-12. Methods: We collected cerebrospinal fluid (CSF) and tumor tissues from patients injected with Ad-TD-nsIL-12 at different times and analyzed CSF circulating tumor DNA (ctDNA) methylation profiles and expression profiles. The differential genes were screened by Lasso Cox regression analyses, and Cox regression analyses. The CIBERSORT algorithm was used to assess the abundance of glioma immune cell infiltration in the TCGA dataset. The role of hub genes in diagnosis, prognosis, and immune cell correlation was analyzed using R software, SPSS software, and Graphpad Prism. Results: By observing the trend of methylation levels in different samples, 3631 differential methylation regions (DMRs) were up-regulated and 497 DMRs were down-regulated after Ad-TD-nsIL-12 injection, and these DMRs recovered their methylation levels within 70-82 days. Combined with the TCGA dataset, eight hub genes were screened to construct diagnostic and prognostic models. There was a significant correlation between hub genes and immune cells. Conclusions: This study analyzed the approximate therapeutic concentrations, doses, and cycles of Ad-TD-nsIL-12 for GBM. Revealed that the hub genes in CSF can be used as a biomarker for the diagnosis and prognosis of GBM, as well as boldly speculated the effect of the hub gene on the immune mechanism of Ad-TD-nsIL-12.

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Genome-wide analysis of circulating tumor DNA methylation profiles in cerebrospinal fluid: a clinical trial of oncolytic virus for glioblastoma [MeDIP-Seq]

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Human Cerebrospinal Fluid modulates pathways promoting Glioblastoma malignancy

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Human Cerebrospinal Fluid modulates pathways promoting Glioblastoma malignancy

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