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Gene expression profiling of immune cells from patients with acute on chronic liver failure (ACLF)

ABSTRACT: Gene expression profiling of immune cells from patients with acute on chronic liver failure (ACLF)

PROVIDER: PRJNA596432 | ENA |

REPOSITORIES: ENA

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Neutrophil Gene expression in Acute-on-chronic liver failure (ACLF), Chronic liver disease (CLD) and Healthy Controls_AIIMSND_Aug2020

Project description:To address the molecular basis of immune-dysfunction in Acute-on-chronic liver failure (ACLF), we carried out gene expression profiling of blood derived neutrophil from ACLF, belonging to both sterile inflammatory and sepsis conditions. Peripheral whole blood was subjected to PMN enrichment by double gradient centrifugation, and RNA isolation was done by TRIZOL method, followed by microarray experiment using Agilent one-color platform. We compared the gene expression of these neutrophils with that of Chronic liver disease (CLD) patients and healthy controls (HC) for baseline relative quantification, and found unique set of upregulated and downregulated genes in ACLF. We validated the expression of the most differentially expressed genes by quantitative RT-PCR and also stratified the patients into survivors and non-survivors, sepsis and sterile-inflammation. We found an upregulated 3-gene signature of ELANE-MPO-CD177 to be associated with 28-day mortality, irrespective of presence or absence of sepsis.

2021-09-28 | GSE156382 | GEO

Gene expression profiling of immune cells from patients with acute on chronic liver failure (ACLF)

Project description:Whole blood from 7 patients with stable cirrhosis, 7 patients with acutely decompensated cirrhosis without ACLF and 17 patients with ACLF (8 related to sepsis and 9 unrelated to sepsis) was sampled into tempus tubes (Applied biosystems, Ambion). The same method was used to sample whole blood from 7 healthy subjects and from 8 patients with septic shock without cirrhosis that were used as comparators.RNA was then extracted using the PerfectPure RNA blood kit (3 PRIME) according to manufactuter instructions. 100 ng of RNA per sample were then hybridized on Human Transcriptome Array 2.0

2021-02-24 | GSE142255 | GEO

Gene expression profiling patients with cirrhosis and acute on chronic liver failure (ACLF)

Project description:Gene expression profiling patients with cirrhosis and acute on chronic liver failure (ACLF)

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Prognosis associated microRNA in peripheral blood mononuclear cells (PBMCs) from hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) [miRNA]

Project description:Genome wide microRNA profiling in peripheral blood mononuclear cells (PBMCs) from hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) patients of in different prognoses of 28-day. The Agilent Human miRNA Microarray Kit was used to obtain RNA profiles in 8 survival patients and 8 dead patients in 28-day.

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Prognosis associated mRNA in peripheral blood mononuclear cells (PBMCs) from hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) [mRNA]

Project description:Genome wide mRNA profiling in peripheral blood mononuclear cells (PBMCs) from hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) patients of in different prognoses of 28-day. The Agilent SurePrint G3 Human Gene Expression ver. 3 8x60K Microarray was used to obtain RNA profiles in 8 survival patients and 8 dead patients in 28-day.

2021-05-19 | GSE168048 | GEO

Quantitative Proteomic Analysis of Plasma Samples from Chronic Hepatitis B and Chronic Liver Failure Patients for Biomarker Discovery

Project description:Hepatitis B virus (HBV)-associated acute on chronic liver failure (HBV-ACLF), characterized by an acute deterioration of liver function in the patients with chronic hepatitis B (CHB), is lack of predicting biomarkers for prognosis. To explore potential biomarkers of HBV-ACLF for clinical applications, immuno-depletion of high-abundance plasma proteins followed by iTRAQ-based quantitative proteomic approach was employed to analyze plasma samples from 20 healthy control people, 20 CHB patients and 20 HBV-ACLF patients, respectively. As a result, a total of 427 proteins were identified and quantified from these samples, and 42 proteins were differentially expressed in HBV-ACLF patients as compared to both CHB patients and healthy controls. According to bioinformatics analysis results, 6 proteins related to immune response (MMR), inflammatory response (OPN, HPX), blood coagulation (ATIII) and lipid metabolism (APO-CII, GP73) were selected as biomarker candidates. Further ELISA analysis confirmed the significant up-regulation of GP73, MMR, OPN and down-regulation of ATIII, HPX, APO-CII in HBV-ACLF plasma samples (p<0.01). Moreover, receiver operating characteristic (ROC) curve analysis revealed high diagnostic value of these candidates in assessing HBV-ACLF. In conclusion, present quantitative proteomic study identified 6 novel HBV-ACLF biomarker candidates and might provide fundamental information for development of HBV-ACLF biomarker.

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Molecular characterization of chronic liver disease dynamics: from liver fibrosis to acute-on-chronic liver failure

Project description:BACKGROUND: The molecular mechanisms driving the progression from early chronic liver disease (eCLD) to cirrhosis and, finally, acute-on-chronic liver failure (ACLF) are largely unknown. Thus, the aim of this work is to develop a network-based approach to investigate molecular pathways driving progression from eCLD to ACLF. We created 9 liver-specific biological networks capturing key pathophysiological processes potentially related to CLD. We used these networks as framework to perform gene set enrichment analyses(GSEA) and create dynamic profiles of disease progression. RESULTS: Principal component analyses revealed that samples clustered according to the disease stage. GSEA analyses of the defined processes showed an up-regulation of inflammation, fibrosis and apoptosis networks throughout disease progression. Interestingly, we did not find significant gene expression differences between CC and DC, while ACLF showed acute expression changes in all the defined liver-related networks. The analyses of disease progression patterns identified ascending and descending expression profiles associated to ACLF onset. Functional analyses showed that ascending profiles were associated to inflammation, fibrosis, apoptosis, senescence and carcinogenesis networks, while descending profiles were mainly related to oxidative stress and genetic factors. We confirmed by qPCR the up-regulation of 4 genes of the ascending profile CXCL-6, KRT-18, SPINK-1, and ITGA2, and validated our findings on an independent patient’s cohort. CONCLUSION: ACLF is characterized by a specific hepatic gene expression pattern related to inflammation, fibrosis, apoptosis, senescence and carcinogenesis processes. Moreover, the observed profile is significantly different from that of compensated and decompensated cirrhosis, supporting thus the hypothesis that ACLF should be considered a distinct entity.

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Neutrophil Gene expression in Acute-on-chronic liver failure (ACLF), Chronic liver disease (CLD) and Healthy Controls_AIIMSND_Aug2020

Project description:Neutrophil Gene expression in Acute-on-chronic liver failure (ACLF), Chronic liver disease (CLD) and Healthy Controls_AIIMSND_Aug2020

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2021-02-24 | GSE142254 | GEO

Gene expression profiling of neutrophils from patients with cirrhosis and acute on chronic liver failure (ACLF)

Project description:Gene expression profiling of neutrophils from patients with cirrhosis and acute on chronic liver failure (ACLF)

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