Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Epigenetic footprint of hepatoblastoma defines a novel integrative molecular classification with clinical implications [CytoScanHD_Array]

ABSTRACT: Hepatoblastoma (HB) is the predominant pediatric liver cancer with limited therapeutic options for patients with aggressive tumors. Nevertheless, it is a rare disease. Here, we performed a high-throughput molecular study of 32 patients with HB and major findings were validated in additional 80 cases. We unveiled an epigenetic footprint including downregulation of RNA-editing, hyperediting of the tumor suppressor BLCAP,14q32 DLK1-DIO3 locus overexpression, DNA hypomethylation and CpG island hypermethylation. Based on these findings, we defined an integrative molecular classification of HB that improve current clinical stratification, and identified CHKA as a therapeutic target for the poor prognostic subclass.

ORGANISM(S): Homo sapiens

PROVIDER: GSE132218 | GEO | 2020/03/23

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Epigenetic footprint of hepatoblastoma defines a novel integrative molecular classification with clinical implications [Infinium MethylationEPIC]

Project description:Hepatoblastoma (HB) is the predominant pediatric liver cancer with limited therapeutic options for patients with aggressive tumors. Nevertheless, it is a rare disease. Here, we performed a high-throughput molecular study of 32 patients with HB and major findings were validated in additional 80 cases. We unveiled an epigenetic footprint including downregulation of RNA-editing, hyperediting of the tumor suppressor BLCAP,14q32 DLK1-DIO3 locus overexpression, DNA hypomethylation and CpG island hypermethylation. Based on these findings, we defined an integrative molecular classification of HB that improve current clinical stratification, and identified CHKA as a therapeutic target for the poor prognostic subclass.

2020-07-09 | GSE132399 | GEO

Epigenetic footprint of hepatoblastoma defines a novel integrative molecular classification with clinical implications [HTA-2_0]

2020-03-23 | GSE132037 | GEO

Epigenetic footprint of hepatoblastoma defines a novel integrative molecular classification with clinical implications [RNA-seq]

2020-03-23 | GSE133039 | GEO

A microRNA cluster in the DLK1-DIO3 imprinted region on chromosome 14q32.2 in hepatoblastoma

Project description:Using array-based expression analysis on formalin-fixed paraffin-embedded tissues, we aimed to identify miRNA signatures that can discriminate between lung metastatic tumors, primary tumors (fetal and embryonal subtypes) and nontumorous surrounding livers. A large cluster of microRNAs and snoRNAs located within the 14q32.2 DLK1-DIO3 region showed a strikingly upregulated expression pattern in HB tumors, especially metastatic tumors, compared to normal liver tissues.

2020-11-20 | GSE153089 | GEO

Modeling Hepatoblastoma: Identification of Distinct Tumor Cell Populations and Key Genetic Mechanisms through Single Cell Sequencing (bulk)

Project description:Hepatoblastoma (HB) is the most common primary liver malignancy of childhood. However, molecular investigations of the disease are limited and effective treatment options are lacking. The use of patient derived xenografts (PDX) to study biology and treatment strategies of HB has proven to be a useful tool. There is currently a knowledge gap in the investigation of key driver cells of HB in PDX models. Key driving pathways of HB tumor including WNT, AP-1, Hedgehog, Notch and MAPK pathways and genes such as GPC3, DLK1 and HMGA2 have been identified in primary HB tumor and PDX as integral players in HB tumor growth. Cell clusters have been defined with distinct roles in tumor development. Cell populations with initiating, angiogenic (endothelial), maintenance, and progression signatures have been identified in one HB patient tumor and corresponding PDX tumor. Critical pathways combined with identification of distinct cell populations within HB tumor will allow for investigation of novel treatment strategies in vitro and in vivo.

2021-07-29 | GSE180664 | GEO

Modeling Hepatoblastoma: Identification of Distinct Tumor Cell Populations and Key Genetic Mechanisms through Single Cell Sequencing (scRNA-seq)

2021-07-29 | GSE180665 | GEO

EZH2 is a key component of Hepatoblastoma tumor cell growth

Project description:To understand molecular mechanisms driving HB pathogenesis, we hypothesize that pathologic activation of Enhancer of Zeste Homolog 2 contributes to hepatoblastoma propagation. Here we demonstrate that EZH2 promotes proliferation in HB cell lines through interaction with β-catenin, the most frequently mutated gene in HB. We demonstrate that canonical and noncanonical EZH2 signaling occur in HB tumor cells, likely driven by aberrant EZH2 expression. We use comparison groups of liver cancer, hepatocytes, and dermal fibroblasts to establish the hepatoblastoma identity of our patient-derived cell lines.

2023-11-15 | GSE235202 | GEO

UBE2C expression is elevated in hepatoblastoma and correlates with inferior patient survival

Project description:To gain insight into the pathobiology of hepatoblastoma (HB), RNA sequence analysis and protein-protein interaction analysis of previously established and sequenced HB samples were conducted. Ubiquitination was identified as a key pathway dysregulated in HB and UBE2C, encoding an E2 ubiquitin ligase often overexpressed in cancer cells, was markedly upregulated in 5 of the 6 HB cell lines. The silencing of UBE2C in HUH6 HB cell model resulted in decreased cell viability and migration. RNA sequencing analysis showed alterations in cell cycle regulation after UBE2C knockdown.

2023-04-30 | GSE201996 | GEO

A Developmentally Prometastatic Niche in Neonatal Liver to Hepatoblastoma mediated by Cxcl1/Cxcr2 Axis

Project description:Hepatoblastoma (HB) is the most common pediatric liver cancer. Its exclusive occurrence in very young children leads us to investigating whether the immature liver provides a protumorigenic niche to HB development. We employed the single-cell RNA-sequencing (sc-RNAseq) to comprehensively profile the HB tumors and their microenvironment in the orthotopic transplantation models established in postnatal day 5 and 60. We demonstrated that the neonatal liver provides a prometastatic niche to HB development via Cxcl1/Cxcr2 axis-mediated HB-aHSC interaction.

2023-01-31 | GSE186027 | GEO

A microRNA cluster in the DLK1-DIO3 imprinted region on chromosome 14q32.2 in hepatoblastoma

Project description:A microRNA cluster in the DLK1-DIO3 imprinted region on chromosome 14q32.2 in hepatoblastoma

| PRJNA641410 | ENA