Expression data from mouse liver after Acetaminophen intoxication
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE17649 | GEO | 2009/08/14
SECONDARY ACCESSION(S): PRJNA118599
REPOSITORIES: GEO
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Project description:Acetaminophen (APAP) is the most widely used analgesic in the United States. Its acute overdose causes liver damage by inducing localized centrilobular cell death. Because of widespread use, APAP toxicity has become the most frequent cause of acute liver failure. Many factors have been associated with the susceptibility of APAP-induced liver injuries, however, few of them have been confirmed and used in the clinical setting. We tried to identify the subset of factors that could affect susceptibility to APAP-induced liver injury by an integrative genetic, transcriptional and 2-D-NMR-based metabolomic analysis across a panel of inbred mouse strains. Experiment Overall Design: After a single administration of high dose (300 mg/kg i.p.) APAP, liver and blood samples were extracted from 3 sensitive (C57B6, DBA/2, and SmJ) and 1 resistant (SJL) mice strains at 0, 3 and 6 hour after APAP exposure. Endogenous metabolites from liver samples were analyzed by 1H-13C 2-dimensional-NMR and gene expression changes occurring within these liver samples were simultaneously analyzed using Affymetrix microarrays. The transcriptional and metabolomic data was jointly analyzed, and functional information within the Gene Ontology database was used to identify the subset of genes that could affect susceptibility to APAP-induced liver injury in the early phase response.
2009-08-23 | E-GEOD-17649 | biostudies-arrayexpress
Project description:Overdose of acetaminophen (APAP) is the major cause of acute liver failure in the Western world with very limited treatment options. Previous studies from our groups and others have shown that timely activation of liver regeneration is a critical determinant of transplant-free survival of APAP-induced acute liver failure (ALF) patients. We used affy microarrays to explore the mechanisms of transcriptional expression in YAP-KO mice after 300mg/kg APAP overdose.
2021-10-04 | GSE183119 | GEO
Project description:Acetaminophen (APAP) is a commonly used analgesic responsible for more than half of acute liver failure cases. Identification of previously unknown genetic risk factors would provide mechanistic insights and novel therapeutic targets for APAP-induced liver injury. This study used a genome-wide CRISPR-Cas9 screen to evaluate genes that are protective against, or cause susceptibility to, APAP-induced liver injury. HuH7 human hepatocellular carcinoma cells containing CRISPR-Cas9 gene knockouts were treated with 15mM APAP for 30 minutes to 4 days. A gene expression profile was developed based on the 1) top screening hits, 2) overlap of expression data from APAP overdose studies, and 3) predicted affected biological pathways. We further demonstrated the implementation of intermediate time points for the identification of early and late response genes. This study illustrated the power of a genome-wide CRISPR-Cas9 screen to systematically identify novel genes involved in APAP-induced hepatotoxicity and to provide potential targets to develop novel therapeutic modalities.
2019-02-04 | GSE112463 | GEO
Project description:Acetaminophen (APAP) is one of the most widely consumed and prescribed drugs. APAP overdose is one of the leading causes of intrinsic drug-induced liver injury (DILI), acute liver failure (ALF), and liver transplantation in the Western world. Mg2+, essential for health, plays a role in virtually every process within the human cell. The cellular transporter family cyclin M, also known as CNNM, plays a key role in Mg2+ transport across the cell membranes in different organs. Here, we identified that the expression of CNNM4 is elevated in the liver of patients with APAP-induced liver injury (AILI), with a concomitant disturbance in serum Mg2+ levels. We demonstrated that, in the liver, APAP interferes with the Mg2+ mitochondrial reservoir via CNNM4, which affects ATP production and ROS generation, further boosting endoplasmic reticulum (ER) stress of the hepatocytes. Importantly, the CNNM4 mutant T495I showed no effect. Finally, a shift in localization of CNNM4 from membrane to ER was shown under APAP toxicity. Therapeutic targeting of Cnnm4 in the liver with nanoparticles and GalNAc-formulated siRNA provides efficient protection from AILI by restoring hepatocyte Mg2+ homeostasis and by inducing hepatocyte restoration. Our results suggest that inhibition of Cnnm4 may represent an alternative route for the treatment of DILI..
2023-03-11 | PXD036682 | Pride
Project description:Acetaminophen (APAP) is the major cause of drug-induced liver injury, with limited treatment options. APAP overdose invokes excessive oxidative stress that triggers mitochondria-to-nucleus retrograde pathways, contributing to APAP-induced liver injury (AILI). Mesenchymal stem cell therapy is a promising tool for acute liver failure. Therefore, the purpose of this study is to investigate the beneficial effects of adipose-derived mesenchymal stem cell (AMSC) therapy on AILI and reveal the potential therapeutic mechanisms. C57BL/6 mice are used as the animal model and AML12 normal murine hepatocytes as the cellular model of APAP overdose. Immunohistochemical staining, western blotting, immunofluorescence staining, and RNA sequencing assay are used for assessing the efficacy and validating mechanisms of AMSC therapy. We found AMSC therapy effectively ameliorated AILI, while delayed AMSC injection lost its efficacy related to the c-Jun N-terminal kinase (JNK)-mediated mitochondrial retrograde pathways. We further found that AMSC therapy inhibited JNK activation and mitochondrial translocation, reducing APAP-induced mitochondrial damage. The down-regulation of activated Ataxia telangiectasia mutated (ATM) and DNA damage response proteins in AMSC treated mice liver indicated AMSC blocked the JNK-ATM pathway. Overall, AMSC may be an effective treatment for AILI by inhibiting JNK-ATM mitochondrial retrograde pathway, which improves APAP-induced mitochondrial dysfunction and liver injury.
2022-12-17 | GSE218879 | GEO
Project description:Fifty percent of all acute liver failure (ALF) cases in the United States are due to acetaminophen (APAP) overdose. Assessment of canonical features of liver injury, such as plasma alanine aminotransferase activities are poor predictors of acute liver failure (ALF), suggesting the involvement of additional mechanisms independent of hepatocyte death. Previous work demonstrated a severe overdose of APAP results in impaired regeneration, the induction of senescence by p21, and increased mortality. We hypothesized that a discrete population of p21+ hepatocytes acquired a secretory phenotype that directly impedes liver recovery after a severe APAP overdose. Leveraging in-house human APAP explant liver and publicly available singlenuclei RNAseq data, we identified a subpopulation of p21+ hepatocytes enriched in a unique secretome of factors, such as Cxcl14. Spatial transcriptomics in the mouse model of APAP overdose confirmed the presence of a p21+ hepatocyte population that directly surrounded the necrotic areas. In both male and female mice, we found a dose-dependent induction of p21 and persistent circulating levels of the p21-specific constituent, Cxcl14, in the plasma after a severe APAP overdose. In parallel experiments, we targeted either the putative senescent hepatocytes with the senolytic drugs, dasatinib and quercetin, or Cxcl14 with a neutralizing antibody. We found that targeting Cxcl14 greatly enhanced liver recovery after APAP-induced liver injury, while targeting the senescent hepatocyte had no effect. This data supports that the sustained induction of p21 in hepatocytes with persistent Cxcl14 secretion are critical mechanistic events leading to ALF in mice and human patients.
2024-04-15 | GSE255834 | GEO
Project description:Fifty percent of all acute liver failure (ALF) cases in the United States are due to acetaminophen (APAP) overdose. Assessment of canonical features of liver injury, such as plasma alanine aminotransferase activities are poor predictors of acute liver failure (ALF), suggesting the involvement of additional mechanisms independent of hepatocyte death. Previous work demonstrated a severe overdose of APAP results in impaired regeneration, the induction of senescence by p21, and increased mortality. We hypothesized that a discrete population of p21+ hepatocytes acquired a secretory phenotype that directly impedes liver recovery after a severe APAP overdose. Leveraging in-house human APAP explant liver and publicly available singlenuclei RNAseq data, we identified a subpopulation of p21+ hepatocytes enriched in a unique secretome of factors, such as Cxcl14. Spatial transcriptomics in the mouse model of APAP overdose confirmed the presence of a p21+ hepatocyte population that directly surrounded the necrotic areas. In both male and female mice, we found a dose-dependent induction of p21 and persistent circulating levels of the p21-specific constituent, Cxcl14, in the plasma after a severe APAP overdose. In parallel experiments, we targeted either the putative senescent hepatocytes with the senolytic drugs, dasatinib and quercetin, or Cxcl14 with a neutralizing antibody. We found that targeting Cxcl14 greatly enhanced liver recovery after APAP-induced liver injury, while targeting the senescent hepatocyte had no effect. This data supports that the sustained induction of p21 in hepatocytes with persistent Cxcl14 secretion are critical mechanistic events leading to ALF in mice and human patients.
2024-04-15 | GSE255777 | GEO
Project description:Acetaminophen (N-acetyl-p-aminophenol; APAP) is a mild analgesic and antipyretic used commonly worldwide. Although APAP is considered a safe and effective over-the-counter medication, it is also the leading cause of drug-induced acute liver failure. Its hepatotoxicity has been linked to the covalent binding of its reactive metabolite, N-acetyl p-benzoquinone imine (NAPQI), to proteins. The aim of this in vivo study was to identify APAP-protein targets in both rat and mouse liver, and to compare the results from both species, using bottom-up proteomics and targeted multiple reaction monitoring (MRM) experiments. Livers from rats and mice, treated with APAP, were homogenized and digested by trypsin. Digests were then fractionated by mixed-mode solid-phase extraction prior to liquid chromatography-tandem mass spectrometry (LC-MS/MS) using scheduled multiple reaction monitoring (MRM) acquisition. The targeted assays were optimized based on high-resolution MS/MS data from information-dependent acquisition (IDA) using control liver homogenates treated with a custom alkylating reagent forming a positional isomer of the APAP modification on all cysteine residues, in order to build an in-house modified peptide database for targeted analysis. A list of putative in vivo targets of APAP were screened from previous in vitro studies, data-dependent high-resolution MS/MS analyses of liver digests, as well as selected proteins from the target protein database (TPDB), an online resource which references previous reports of proteins found to be modified by acetaminophen. Multiple protein targets of APAP in each species were found, while confirming modification sites.
2022-02-17 | PXD027674 | Pride
Project description:Drug-induced liver injury (DILI) is a leading cause of acute liver failure and the major reason for withdrawal of drugs from the market. Preclinical evaluation of drug candidates has failed to detect about 40% of potentially hepatotoxic compounds in humans. At the onset of liver injury in humans, currently used biomarkers have difficulty differentiating severe DILI from mild, and/or predict the outcome of injury for individual subjects. Therefore, new biomarker approaches for predicting and diagnosing DILI in humans are urgently needed. Recently, circulating microRNAs (miRNAs) such as miR-122 and miR-192 have emerged as promising biomarkers of liver injury in preclinical species and in DILI patients. In this study, we focused on examining global circulating miRNA profiles in serum samples from subjects with liver injury caused by accidental acetaminophen (APAP) overdose. Upon applying next generation high-throughput sequencing of small RNA libraries, we identified 36 miRNAs, including 3 novel miRNA-like small nuclear RNAs, which were enriched in the serum of APAP overdosed subjects. The set comprised miRNAs that are functionally associated with liver-specific biological processes and relevant to APAP toxic mechanisms. Although more patients need to be investigated, our study suggests that profiles of circulating miRNAs in human serum might provide additional biomarker candidates and possibly mechanistic information relevant to liver injury.
2014-11-28 | GSE59565 | GEO
Project description:Acetaminophen (APAP) overdose provokes various degrees of liver injury, whose pathogenesis involves multiple pathological events, such as mitochondrial damage and necrosis. E3 ubiquitin ligase neural precursor cell expressed developmentally downregulated 4-1 (NEDD4-1) plays vital roles in regulating a wide spectrum of physiological processes, and has been implicated in the pathogenesis of numerous liver disease. However, studies about the regulation of NEDD4-1 on APAP-induced liver injury (AILI) is still deficient. Thus, the aim of this study is to determine whether and how NEDD4-1 plays a role in AILI. Thus, we performed transcriptomic studies comparing liver samples of APAP-treated Flox or APAP-treated hepatocyte-specific Nedd4-1 (HepKO) deficiency mice,
2022-03-29 | GSE199353 | GEO