Circulating extracellular vesicles with liver-specific RNA species are potential biomarkers for early cholestasis-induced liver fibrosis.
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ABSTRACT:
PROVIDER: PRJNA701900 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13711317.fastq.gz | Fastqsanger.gz | |||
| SRR13711318.fastq.gz | Fastqsanger.gz | |||
| SRR13711319.fastq.gz | Fastqsanger.gz | |||
| SRR13711320.fastq.gz | Fastqsanger.gz | |||
| SRR13711321.fastq.gz | Fastqsanger.gz |
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Project description:Aims Biliary diseases represent around 10% of all chronic liver diseases and affect both adults and children. Currently available biochemical tests detect cholestasis but not early liver fibrosis. Circulating extracellular vesicles (EVs) provide a real-time molecular snapshot of the injured organ in a non-invasive way. We thus aimed at searching for a panel of EV-based biomarkers for cholestasis-induced early liver fibrosis using mice models. Results: Progressive and detectable histological evidence of collagen deposition and liver fibrosis was observed as from Day 8 after bile duct ligation (BDL) in mice. Whole transcriptome and small RNA-seq analyses of circulating EVs revealed differentially enriched RNA species after BDL versus sham controls. Unsupervised hierarchical clustering identified a signature that allowed for discrimination between BDL and controls. In particular, 151 microRNAs enriched in BDL-derived EVs were identified, of which 66 were conserved in humans. The liver was an important source of circulating EVs in BDL animals as evidenced by the enrichment of several hepatic mRNAs, such as Albumin, Haptoglobin, Transferrin receptor 1 and Alas2. Interestingly, among experimentally validated miRNAs, miR194-5p and miR29-3p showed similar enrichment patterns also in EVs derived from DDC-treated (drug-induced cholestasis) and MDR2-/- (genetic cholestasis) mice. Innovation A panel of mRNAs and miRNAs contained in circulating EVs, when combined, provides sensitive biomarkers for the early detection of hepatic damage and fibrosis. Conclusion Analysis of EVs for enrichment in miR29-3p and miR194-5p, in combination with hepatic injury RNA markers, could represent a sensitive biomarker panel for the early detection of cholestasis-induced liver fibrosis.
2022-02-28 | GSE166752 | GEO
Project description:Aims Biliary diseases represent around 10% of all chronic liver diseases and affect both adults and children. Currently available biochemical tests detect cholestasis but not early liver fibrosis. Circulating extracellular vesicles (EVs) provide a real-time molecular snapshot of the injured organ in a non-invasive way. We thus aimed at searching for a panel of EV-based biomarkers for cholestasis-induced early liver fibrosis using mice models. Results: Progressive and detectable histological evidence of collagen deposition and liver fibrosis was observed as from Day 8 after bile duct ligation (BDL) in mice. Whole transcriptome and small RNA-seq analyses of circulating EVs revealed differentially enriched RNA species after BDL versus sham controls. Unsupervised hierarchical clustering identified a signature that allowed for discrimination between BDL and controls. In particular, 151 microRNAs enriched in BDL-derived EVs were identified, of which 66 were conserved in humans. The liver was an important source of circulating EVs in BDL animals as evidenced by the enrichment of several hepatic mRNAs, such as Albumin, Haptoglobin, Transferrin receptor 1 and Alas2. Interestingly, among experimentally validated miRNAs, miR194-5p and miR29-3p showed similar enrichment patterns also in EVs derived from DDC-treated (drug-induced cholestasis) and MDR2-/- (genetic cholestasis) mice. Innovation A panel of mRNAs and miRNAs contained in circulating EVs, when combined, provides sensitive biomarkers for the early detection of hepatic damage and fibrosis. Conclusion Analysis of EVs for enrichment in miR29-3p and miR194-5p, in combination with hepatic injury RNA markers, could represent a sensitive biomarker panel for the early detection of cholestasis-induced liver fibrosis.
2022-02-28 | GSE166753 | GEO
Project description:Circulating extracellular vesicles with liver-specific RNA species are potential biomarkers for early cholestasis-induced liver fibrosis [mRNA-seq]
| PRJNA701906 | ENA
Project description:Circulating extracellular vesicles with liver-specific RNA species are potential biomarkers for early cholestasis-induced liver fibrosis [RNA-seq]
| PRJNA701905 | ENA
Project description:Cholelithiasis-induced cholestasis is one of the most common causes of hospitalization due to gastrointestinal disease, yet considerable knowledge gaps exist in the pathogenesis of this disease. This can partially be explained by inadequate characterization of experimental cholestasis models. Therefore, we compared the transcriptional profile of commonly used mouse models for obstructive cholestasis and benchmarked them to human disease to identify the model(s) best suited for cholelithiasis-induced cholestasis research and to uncover conserved mechanisms involved in human and murine cholestasis. Selected mouse models included bile duct ligation (BDL) surgery, 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) diet, associated with extra- and intrahepatic obstructive cholestasis, respectively, and a drug-induced cholestasis model relying on cyclosporin A (CsA), in an acute and chronic setting. Human samples were collected from patients with cholelithiasis-induced cholestasis of an acute and recurrent nature. RNA sequencing was performed on mouse and human liver tissue. Both the BDL and DDC models, but not the CsA model, were shown to be applicable for studying cholelithiasis-induced cholestasis, with transcriptomic profiles that highly correspond to acute cholestasis in human patients. In particular, the conservation of canonical pathways related to the inflammatory response and cytoskeleton organization, in which the Rho family GTPase is involved, were identified. This study furthermore revealed some promising mechanistic-based transcriptomic biomarkers relevant for murine and human cholestasis, which could potentially be useful for robust prediction and detection of diverse types of cholestatic liver disease.
2023-05-02 | GSE183882 | GEO
Project description:Cholelithiasis-induced cholestasis is one of the most common causes of hospitalization due to gastrointestinal disease, yet considerable knowledge gaps exist in the pathogenesis of this disease. This can partially be explained by inadequate characterization of experimental cholestasis models. Therefore, we compared the transcriptional profile of commonly used mouse models for obstructive cholestasis and benchmarked them to human disease to identify the model(s) best suited for cholelithiasis-induced cholestasis research and to uncover conserved mechanisms involved in human and murine cholestasis. Selected mouse models included bile duct ligation (BDL) surgery, 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) diet, associated with extra- and intrahepatic obstructive cholestasis, respectively, and a drug-induced cholestasis model relying on cyclosporin A (CsA), in an acute and chronic setting. Human samples were collected from patients with cholelithiasis-induced cholestasis of an acute and recurrent nature. RNA sequencing was performed on mouse and human liver tissue. Both the BDL and DDC models, but not the CsA model, were shown to be applicable for studying cholelithiasis-induced cholestasis, with transcriptomic profiles that highly correspond to acute cholestasis in human patients. In particular, the conservation of canonical pathways related to the inflammatory response and cytoskeleton organization, in which the Rho family GTPase is involved, were identified. This study furthermore revealed some promising mechanistic-based transcriptomic biomarkers relevant for murine and human cholestasis, which could potentially be useful for robust prediction and detection of diverse types of cholestatic liver disease.
2023-05-02 | GSE183754 | GEO
Project description:Recently, study on circulating microRNAs (miRNAs) as potential biomarkers of drug-induced liver injury (DILI), has received increasing attention. It has been demonstrated that miR-122 and miR-192, which are liver enriched, could be potential biomarkers of DILI, however, these miRNAs cannot discern types of injuries. In the present study, we comprehensively analyzed time-dependent plasma miRNA profiles in rats with drug- or chemical-induced hepatocellular injury, cholestasis, and steatosis with high-throughput miRNA sequencing. To enable comparison of miRNA expression levels between DILI models with different severity and peaks of injuries, stages of injury were defined as early, middle and late, according to cluster patterns of miRNA expression profiles. Through differential analysis, we characterized miRNAs that were specifically up- or down-regulated in each DILI model. Interestingly, several miRNAs were dramatically changed earlier than traditional biomarkers such as ALT and AST. For example, in APAP-induced hepatocellular injury model, let-7b-5p was up-regulated as early as 3 h after dosing, while significant change in ALT level was observed at 24 h. Thereafter, we focused on the DILI type-specific miRNAs which were up-regulated at early stage of injury. RT-qPCR study validated that let-7b-5p and miR-1-3p for hepatocellular injury, miR-143-3p and miR-218a-5p for cholestasis, and miR-320-3p for steatosis models have shown significant increase in the early stage of the injuries. The present study suggests the utility of miRNAs as specific biomarkers for early detection of DILI.
2018-09-26 | GSE112934 | GEO
Project description:microRNA Biomarkers Expressed in Circulating Extracellular Vesicles and Atherosclerotic Plaques
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Project description:Most cancer-related deaths are caused by distant metastases, which are tumour cells that have escaped from a primary tumour and passed into the bloodstream to colonize a new organ. In this context, communication between tumour and stromal cells is essential. Indeed, tumor cells interact with cells in the tumor microenvironment and are able to modify them to their advantage. Both extracellular vesicles (EVs) and exosomes are heterogeneous populations of small vesicles present in the tumor microenvironment and in body fluids that have recently emerged as powerful mediators involved in this communication and their transport in fluids. Tumor cells release large quantities of exosomes containing tumor markers, which can then spread to distant locations.
The exosomes are of endosomal origin. They are composed of proteins, lipids, RNA and DNA, and they circulate in the bloodstream. They can be internalized by specific distant cells and thus deliver a functional message. It has recently been shown that tumor exosomes containing pro-metastatic factors form pre-metastatic niches, before the tumor cells actually arrive, while determining the metastatic organotropism of tumors. These properties are now opening up new avenues of research in tumor biomarkers. In recent years, several studies have highlighted different markers contained specifically in exosomes derived from cancer cells. Consequently, exosomes are considered as potential reservoirs of tumor biomarkers that could be clinically useful for the non-invasive diagnosis of cancer, with the advantage of being performed by liquid biopsy. The study of microRNA (miRNA) is of particular interest. Indeed, miRNAs are small non-coding RNAs (between 21 and 25 nucleotides) involved in the regulation of gene expression and which are frequently deregulated in cancer. Several studies underline that the variation of free miRNAs in the blood is correlated with the progression of the disease, particularly in colon cancer. However, the stability of free miRNAs is controversial. Therefore, exosomes represent a very advantageous means of transporting miRNAs in the blood, as they are able to protect miRNAs from degradation by RNAase.
The hypothesis of the project is that circulating exosomes derived from tumours contain markers including specific miRNAs that could be used as biomarkers of early prognosis (survival and progression), easily measured in blood samples from patients with colon cancer. But other molecules contained in exosomes could also be of interest.
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Project description:Cholestasis, a serious complication of liver metastasis (LM), contributes to dismal prognosis in patients with colorectal cancer and LM. However, the mechanism underlying the effect of cholestasis on the development of LM or pre-metastatic microenvironment in the liver remains elusive. In this study, we discovered that cholestasis accelerated the progression of LM and is associated with increased neutrophil infiltration, T-cell exclusion, and exhaustion. Besides, Tβ-MCA and GCA promoted the expression of Arg1 and iNOS in neutrophils via the p38/MAPK signaling pathway. The significant suppression of the activation and cytotoxic effects of CD8+ T cells during co-culture with BA-pretreated neutrophils indicated that BAs directly induce the polarization of immunosuppressive neutrophils. Importantly, targeting BA anabolism with Obeticholic acid effectively suppressed the LM of colorectal cancer in a cholestasis mouse model. Our findings suggest that cholestasis, associated with the failure to achieve drainage of primary BAs, accelerates the progression of LM by remodeling the tumor immune microenvironment. Moreover, targeting BA anabolism with OCA may represent a therapeutic strategy for cholestasis-associated LM of colorectal cancer.
2024-07-10 | GSE209836 | GEO