Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

MicroRNA sequence and expression analysis of rat liver tissue exposed to aflatoxin B1 by deep sequencing

ABSTRACT: We report the application of illumina deep sequencing technology for high-throughput profiling of microRNA in aflatoxin B1 treated rat liver tissue, as well as normal liver tissue. miRNAs of miR-17-92 cluster, thought to be tumor activating miRNAs, were down-regulated. miR-34a, considered to be a tumor suppressor, was up-regulated.Novel miRNAs and miRNA base alteration caused by SNP or editing were predicted and summarized.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE44826 | GEO | 2013/03/05

SECONDARY ACCESSION(S): PRJNA192254

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

MicroRNA sequence and expression analysis of rat liver tissue exposed to aflatoxin B1 by deep sequencing

Project description:We report the application of illumina deep sequencing technology for high-throughput profiling of microRNA in aflatoxin B1 treated rat liver tissue, as well as normal liver tissue. miRNAs of miR-17-92 cluster, thought to be tumor activating miRNAs, were down-regulated. miR-34a, considered to be a tumor suppressor, was up-regulated.Novel miRNAs and miRNA base alteration caused by SNP or editing were predicted and summarized. Examination of 2 microRNA profiles in 2 liver tissues under different treatments.

2013-03-05 | E-GEOD-44826 | biostudies-arrayexpress

Liver and cecum from mice exposed to aflatoxin B1 (AFB1) and/or Helicobacter hepaticus

2008-05-09 | GSE11382 | GEO

Early target genes of aflatoxin B1 in human hepatic cells

Project description:Comparison of gene expression profiles induced by the mycotoxin, aflatoxin B1 (AFB1), in primary human hepatocytes and HepaRG cells. Initial mechanisms involved in the complex multistep process leading to malignant transformation by chemicals remain largely unknown. We have analysed changes in gene expression profiles in primary human hepatocytes and differentiated human hepatoma HepaRG cells after a 24 h treatment with 0.05 or 0.25µM aflatoxin B1 (AFB1), a potent genotoxic hepatocarcinogen.

2010-12-07 | GSE25844 | GEO

Early target genes of aflatoxin B1 in human hepatic cells

2010-12-07 | E-GEOD-25844 | biostudies-arrayexpress

Agilent zebrafish V3 array 4´44K microarray-Aflatoxin B1 treated with 6-48 hpf zebrafish embryos

Project description:To investigate the effects of Aflatoxin B1 on gene expressions in zebrafish embryos.

2021-10-11 | GSE121125 | GEO

Transcription profiling of mouse liver and cecum after exposure to aflatoxin B1 (AFB1) and/or Helicobacter hepaticus

Project description:We evaluated aflatoxin B1-induced liver tumor promotion by H. hepaticus. Microarrays of liver and cecum from female mice were used to evaluate the individual and combined transcriptional effects of AFB1 and H. hepaticus Experiment Overall Design: C3H/HeN mice were inoculated with 7 ug/g BW AFB1 or vehicle IP at 10 days of age, and gavaged with H. hepaticus or broth at 3 weeks; necropsied at 40 weeks

2008-06-20 | E-GEOD-11382 | biostudies-arrayexpress

Yeast Genomic Expression Patterns of PTC1 null mutant in Response to Aflatoxin B1 (AFB1)

Project description:The evaluation of the toxicity of Aflatoxin B1 using yeast gene expressions. Yeast strain; BY4743 PTC1 mutant, was used for this study. SDS was used to raise the penetration of the yeast cell membrane.

2010-04-01 | GSE17367 | GEO

Transcriptional Responses in Livers of Adult and Newborn Mice to Aflatoxin B1

Project description:Susceptibility to the hepatocarcinogen Aflatoxin B1 (AFB1) varies among species and with age. Mice are refractory to carcinogenic and toxic effects of AFB1; however, B6C3F1 mice show transient sensitivity if dosed shortly after birth. We compared age-related differences in gene expression and transcriptional responses to AFB1 in livers of newborn (4-day-old) and adult mice. Keywords: Transcriptional response to a carcinogen

2009-01-01 | GSE4740 | GEO

Aflatoxin B1 attenuates endocrine function, protein synthesis and energy production of human primary trophoblast

Project description:Aflatoxin B1 (AFB1) is a mycotoxin produced by Aspergillus flavus and A. parasiticus. AFB1 targeted gene expression profiles were determined in human primary trophoblast cells, isolated from full term placentae after delivery, and exposed to 1 µM AFB1 for 72 hours. Gene expression profiling conducted with human HT-12 expression beadchips

2020-12-31 | GSE153590 | GEO

Persistent microRNA-gene networks in primary human hepatocytes upon withdrawal of aflatoxin B1 exposure are related to hepatocellular carcinoma [mRNA]

Project description:Hepatocellular carcinoma (HCC), one of the most common cancer types, is a multi-factorial disease. One strongly associated factor is oral exposure to the food-contaminant aflatoxin B1 (AFB1). A clear link between AFB1-induced p53 mutations and HCC exists, however less is known about the association with microRNA expression changes. In particular, irreversible adverse effects that may occur at the transcriptomic level following repetitive exposure have not been investigated yet. Therefore, in this study, we aimed to dissect persistent changes in expression of microRNA-directed regulatory networks from transient transcriptome modifications contributing to AFB1-induced HCC. Primary human hepatocytes were exposed to 1 µM of AFB1 for 5 days followed by a 3 day wash-out period. Whole genome transcriptomic analysis and microRNA expressions were analyzed applying microarray technologies. By evaluating genes which remain significantly expressed into the same direction after the 3-day wash-out period persistent AFB1-induced and HCC-related biological processes could be identified. Persistent genes could be linked with "Drug and energy metabolism" and "Pre-, post- and transcriptional regulation of gene expression" related processes. Especially, two HCC-related microRNAs, hsa-miR-34b-5p and hsa-miR-222-3p, which are persistently expressed, seem to regulate genes involved in these very characteristic AFB1-induced processes referring to cancer-associated metabolism changes and regulation of gene expression. Moreover, hsa-miR-34a-5p, hsa-miR-96-5p and hsa-miR-30a-3p which become differentially expressed only upon terminating AFB1 exposure, seem to regulate persistently expressed genes. The findings within this study therefore contribute to a better understanding of the AFB1-induced onset of HCC by causing persistent effects on microRNA and gene expression.

2018-12-31 | GSE71542 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data