Characteristic molecular and proteomic signatures of drug-induced liver injury in a rat model
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ABSTRACT:
ORGANISM(S): Rattus norvegicus
PROVIDER: GSE49631 | GEO | 2013/08/16
SECONDARY ACCESSION(S): PRJNA214535
REPOSITORIES: GEO
Similar Datasets
Project description:we assessed characteristic molecular and proteomic signatures in rat liver treated with drugs (pyrazinamide, ranitidine, enalapril, carbamazepine, and chlorpromazine) that are known to cause DILI in humans. In the present study, we assessed the characteristic gene expression signature for DILI in a rat model. Rats were administered representative drugs that are already known to induce DILI in humans and transcriptomic changes in rat liver were analyzed. The representative drugs, which induce three types (hepatocellular, mixed, and cholestatic) of DILI, that were used in this study were pyrazinamide (PZA, 150~1500 mg/kg), ranitidine (RAN, 209.5~2095 mg/kg), enalapril (ENA, 148.65~1486.5 mg/kg), carbamazepine (CBZ, 97.85~978.5 mg/kg), and chlorpromazine (CPZ, 7.1~71 mg/kg).
2013-08-16 | E-GEOD-49631 | biostudies-arrayexpress
Project description:Drug induced liver injury (DILI) is still a major reason for drug attrition during clinical trials and market-withdrawal of already approved drugs. DILI is difficult to predict in animal models, hence more suitable screening methods are needed to predict adverse effects in human. Here, transcriptomic data from short- and long-term cultured primary human hepatocytes exposed to the human hepatotoxin Chlorpromazine was analysed.
2013-08-05 | E-MTAB-1747 | biostudies-arrayexpress
Project description:BackgroundAtopic eczema (AE) is characterized by skin barrier and immune dysfunction. Null mutations in filaggrin (FLG), a key epidermal barrier protein, strongly predispose to AE; however, the precise role of FLG deficiency in AE pathogenesis remains incompletely understood.ObjectivesWe sought to identify global proteomic changes downstream of FLG deficiency in human epidermal living skin-equivalent (LSE) models and validate findings in skin of patients with AE.MethodsDifferentially expressed proteins from paired control (nontargeting control short hairpin RNA [shNT]) and FLG knockdown (FLG knockdown short hairpin RNA [shFLG]) LSEs were identified by means of proteomic analysis (liquid chromatography-mass spectrometry) and Ingenuity Pathway Analysis. Expression of key targets was validated in independent LSE samples (quantitative RT-PCR and Western blotting) and in normal and AE skin biopsy specimens (immunofluorescence).ResultsProteomic analysis identified 17 (P ? .05) differentially expressed proteins after FLG knockdown, including kallikrein-7 (KLK7; 2.2-fold), cyclophilin A (PPIA; 0.9-fold), and cofilin-1 (CFL1, 1.3-fold). Differential protein expression was confirmed in shNT/shFLG LSEs; however, only KLK7 was transcriptionally dysregulated. Molecular pathways overrepresented after FLG knockdown included inflammation, protease activity, cell structure, and stress. Furthermore, KLK7 (1.8-fold) and PPIA (0.65-fold) proteins were differentially expressed in lesional biopsy specimens from patients with AE relative to normal skin.ConclusionsFor the first time, we show that loss of FLG in the absence of inflammation is sufficient to alter the expression level of proteins relevant to the pathogenesis of AE. These include proteins regulating inflammatory, proteolytic, and cytoskeletal functions. We identify PPIA as a novel protein with levels that are decreased in clinically active AE skin and show that the characteristic upregulation of KLK7 expression in patients with AE occurs downstream of FLG loss. Importantly, we highlight disconnect between the epidermal proteome and transcriptome, emphasizing the utility of global proteomic studies.
| S-EPMC5667587 | biostudies-literature
Project description:Drug-Induced-Liver-Injury (DILI) is a leading cause of termination in drug development programs and removal of drugs from the market because of inability to identify potential patients prior to clinical testing. Here, we approached a polygenic risk score (PRS) based strategy by aggregating effects of numerous genome-wide loci identified from previous large-scale genome-wide association studies (GWAS). The PRS predicted the susceptibility to DILI in patients in a clinical trial, and in multi-donor derived primary hepatocytes and stem cell-derived organoids. Pathway analysis highlighted processes previously implicated in DILI, including unfolded protein responses and oxidative stress alleviated by a potent antioxidant. Furthermore, hepatocytic transcriptomic signatures related to polygenic score identified potential drugs with clinical DILI evidence through in silico 941 compound screening. This genetic-, cellular-, organoid- and human-scale evidence underscored the polygenic architectures underlying DILI vulnerability at the level of hepatocytes, thus facilitating future mechanistic studies. Moreover, the proposed “polygenicity-in-a-dish” strategy potentially will contribute to prospective designs of safer, more efficient, and robust clinical trials.
2020-09-07 | GSE152447 | GEO
Project description:Preventing clinical drug-induced liver injury (DILI) remains a major challenge because DILI develops via multifactorial mechanisms. Immune and inflammatory reactions are considered important mechanisms of DILI; however, biomarkers from in vitro systems using immune cells have not been comprehensively studied. The aims of this study were 1) to identify promising biomarker genes for predicting DILI in an in vitro coculture model of peripheral blood mononuclear cells (PBMCs) with a human liver cell line, and 2) to evaluate these genes as predictors of DILI using a panel of drugs with different clinical DILI risk. Transcriptome-wide analysis of PBMCs cocultured with HepG2 or differentiated HepaRG cells that were treated with several drugs revealed an appropriate separation of DILI-positive and DILI-negative drugs, from which 12 putative biomarker genes were selected. To evaluate the predictive performance of these genes, PBMCs cocultured with HepG2 cells were exposed to 77 different drugs, and gene expression levels in PBMCs were determined. The MET proto-oncogene receptor tyrosine kinase (MET) showed the highest area under the receiver operating characteristic curve (AUC) value of 0.81 among the 12 genes with a high sensitivity/specificity (85/66%). However, a stepwise logistic regression model using the 12 identified genes showed the highest AUC value of 0.94 with a high sensitivity/specificity (93/86%). Taken together, we established a coculture system using PBMCs and HepG2 cells and selected biomarkers that can predict DILI risk. The established model would be useful in detecting the DILI potential of compounds, in particular those that involve an immune mechanism.
2020-04-02 | GSE147866 | GEO
Project description:The antimicrobials isoniazid and pyrazinamide, used for the treatment of tuberculosis are known to cause drug-induced liver injury in humans. This limits the effectiveness of tuberculosis treatment, resulting in incomplete cure, relapse and the development of antimicrobial resistance. MicroRNAs are known to be good biomarkers of disease, with the microRNA miR-122 being diagnostic for liver injury. In this study zebrafish larvae were exposed to the anti-tuberculosis drugs isoniazid and pyrazinamide at concentrations which demonstrated liver injury by microscopy and histology. The aim of this study is to understand small RNA changes occurring in anti-tuberculosis drug-induced liver injury and to attempt to identify novel microRNA biomarkers of liver injury.
2023-12-25 | GSE146260 | GEO
Project description:An integrative analysis of this compendium of proteomic alterations and transcriptomic data was performed revealing only 48-64% concordance between protein and transcript levels. Importantly, differential proteomic alterations between metastatic and clinically localized prostate cancer that mapped concordantly to gene transcripts served as predictors of clinical outcome in prostate cancer as well as other solid tumors. Keywords: prostate cancer progression
2005-09-20 | GSE3325 | GEO
Project description:The goals of this study are to use SWATH-MS to detect bacterial proteomic profiles of wild-type E. coli K-12 LE392, P. putida KT2440, and their quantitative protein response under the exposure of antiepileptic drug carbamazepine. Three concentrations of carbamazepine were applied, which were 0.05 mg/L, 10.0 mg/L and 50.0 mg/L. The group without dosing carbamazepine was the control group. Each concentration was conducted in triplicate. By comparing the proteomic profiles of experimental groups and control group, the effects of carbamazepine on bacterial translational levels can be revealed.
2018-10-10 | PXD009279 | Pride
Project description:The key exosomal miRNAs in adaptive response to drug-induced liver (DILI) and liver regeneration were investigated and proved. This study aimed to decipher the mechanism of restorative events in the adaptive response to DILI by investigating circulating exosomal miRNAs. Using toosendanin-induced liver injury model, exosomal miR-106b-5p was identified as a robust driver in the adaptive response of TILI.
2020-11-07 | GSE160961 | GEO
