Project description:Fibrolamellar hepatocellular carcinoma (FLC) is a rare type of primary liver cancer that often arises in children, adolescents and young adults. At the pathological level, FLC display pure morphology or can present with mixed morphology involving a conventional HCC component. Owing to the rarity of the disease, its genetic landscape is fully unknown. Pure FLC showed less chromosomic aberrations than mixed FLC and hepatocellular carcinoma arising in non-cirrhotic liverﾵ. Nevertheless; they displayed more gains in 16q23 and more LOH in 21q22. We also analyzed the mutational landscape of 8 FLC by whole-exome sequencing and showed mutations in the coagulation pathway.
Project description:We profiled the mutations and gene expressions of early and advanced hepatocellular carcinoma (HCC) related with Hepatitis B-viral infection. Integrative analysis was performed with whole-exome sequencing and gene expression profiles of the 12 cases of early and advanced HCCs and paired non-tumoral adjacent liver tissues.
Project description:We profiled the mutations and gene expressions of early and advanced hepatocellular carcinoma (HCC) related with Hepatitis B-viral infection. Integrative analysis was performed with whole-exome sequencing and gene expression profiles of the 12 cases of early and advanced HCCs and paired non-tumoral adjacent liver tissues. 12 HCC Samples
Project description:In this study RNAseq was used for studying the transcriptome profile of primary liver sinusoidal endothelial cells (LSECs) isolated from non-lesioned non-tumorous liver tissues (considered as healthy) and from cirrhotic liver explants (ethanol etiology). Results showed different transcriptomic profile between two populations of LSECs with 1374 significant deregulated genes (fold-change>1.5 and p-vale<0.05) in cirrhotic-LSECs compared with healthy-LSECs.
Project description:Hepatocellular carcinoma (HCC) affects millions of people worldwide and is a lethal malignancy for which there are no effective therapies. To identify prognostic gene markers for liver cancer, we conducted transcriptome profiling of frozen tissues (tumor and non-tumor) from 300 early-to-advanced stage HCCs plus 40 cirrhotic and 6 normal livers. We have profiles 268 HCC tumor, 243 adjacent non-tumor, 40 cirrhotic and 6 healthy liver samples.
Project description:Most hepatocellular carcinomas in younger patients from Peru arise from non-cirrhotic livers. Histological examination of the non-tumor liver tissues highlights the presence of clear cell foci in a significant fraction of Peruvian patients with hepatocellular carcinoma. We used microarrays to compare gene expression between non-tumor liver tissues with and without clear cell foci and identified ontologies that are distinctively differentially expressed between subsets.
Project description:Non-coding microRNAs (miRNAs) mainly regulate the expression of targeted genes by regulating mRNA degradation or repressing their protein translation. MiRNA microarray profiling was then performed on 218 human HCC tumors samples, 10 samples from adjacent cirrhotic non-tumoral tissue, 10 samples from healthy liver and 12 HCC cell lines. In this study we investigated which miRNAs were differentially expressed in HCC compared to cirrhotic non-tumoral tissue and healthy liver.
Project description:A large fraction of HCC in Peru arises in younger, non-cirrhotic patients. Global DNA methylation analysis of the HCC and non-tumor liver (NTL) tissues demostrate a profound overhaul of the developmental DNA methylation programme culminating in an global hyper-methylated pattern in HCC. We used microarrays to compare global DNA methylation between tumor and non-tumor liver tissues and identified CpGs and ontologies that are distinctively differentially methylated between subsets.
