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Transcriptome Analysis of PBMCs in peripheral blood of patients with hepatocellular carcinoma

ABSTRACT: The aim of this study was to analyze the expression profile of circRNAs in PBMCs in peripheral blood of patients with hepatocellular carcinoma (HCC) by next-generation sequencing, and to identify potential markers for early diagnosis and prognosis of HCC, and to lay a foundation for further study on the mechanism of this molecule in PBMCs.

ORGANISM(S): Homo sapiens

PROVIDER: GSE120663 | GEO | 2019/03/07

REPOSITORIES: GEO

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Transcriptome Analysis of PBMCs in peripheral blood of patients with RA

Project description:The aim of this study was to analyze the expression profile of circRNAs in PBMCs in peripheral blood of patients with RA by next-generation sequencing, and to identify potential markers for early diagnosis and prognosis of RA, and to lay a foundation for further study on the mechanism of this molecule in PBMCs.

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Transcriptome Analysis of PBMCs in peripheral blood of patients with SLE

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Differential expression profile and diagnostic value of plasma exosomal circular RNA in hepatocellular carcinoma

Project description:Circular RNAs (circRNAs) are recently found to be promising kind of biomarkers for tumors. However, plasma exosomal circRNAs in the diagnosis of hepatocellular carcinoma (HCC) is largely unknown. In this study, we report the application of next-generation sequencing technology for high-throughput profiling of plasma exosome general transcriptome between 3 cases of hepatocellular carcinoma patients and 3 cases of healthy control. We obtained exosomes through ultrahigh-speed centrifugation techniques and verified exosomes through immunoblotting, NanoSight NS300(Malvern Panalytical, Malvern, UK) and JEM-1230 transmission electron microscope (TEM) (JEOL, Tokyo, Japan). And then, we find that there are 41 circRNAs that have differential expression. This study discovered the differences between hepatocellular carcinoma and healthy people preliminarily.

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Analysis of gene expression in co-culture of PBMCs with Hepatocellular carcinoma by High-Throughput Sequencing

Project description:Objectives: To characterize the transcripts profile of PBMCs when co-cultured with HCC cell lines using High-Throughput Sequencing and To validate the differentially expressed genes via quantitative reverse transcription polymerase chain reaction (qRT-PCR) in PBMCs of HCC pateints. Methods: Transcription profiles of PBMC (control) and PBMC co-cultured with liver cancer cell lines (treatment) were generated by deep sequencing, in triplicate, using Illumina Illumina HiSeq 4000. Results and conclusion: Transcriptome analysis of PBMCs has revealed the presence of biological process alterations when co-cultured with HCC cell lines and qRT-PCR validation have indicated that four genes were up-reglurated in HCC patients when compared with healthy donors including IL1b, INHBA, PLOD2, PRG4.

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Signature of circular RNAs in peripheral blood mononuclear cells (PBMCs) from patients with active tuberculosis

Project description:The knowledge of circRNAs in tuberculosis (TB) remains limited. Aim of the present study was to characterize the expression profiles and potential function of circRNAs in human peripheral blood mononuclear cells (PBMCs) from patients with active TB.

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A Mammalian Conserved Circular RNA CircLARP2 Regulates Hepatocellular Carcinoma Metastasis and Lipid Metabolism (Part 2)

Project description:Circular RNAs (circRNAs) have emerged as crucial regulators in physiology and human diseases. However, evolutionarily conserved circRNAs with potent functions in cancers are rarely reported. Here, we identified a mammalian conserved circRNA circLARP2 that played critical roles in hepatocellular carcinoma (HCC). With clinical specimens, we found that patients with high circLARP2 levels in HCC had advanced prognostic stage and poor overall survival. CircLARP2 facilitated HCC metastasis and lipid accumulation in HCC cell lines. CircLARP2 was one of the rare ones that were identified in HCC metastasis and conserved in mammals, which enabled further studies with animal models. CircLARP2-deficient mice exhibited reduced metastasis and less lipid accumulation in an induced HCC model. We provided lines of evidence at molecular, cellular, and whole organismal levels, to support that circLARP2 functioned as a protein sponge of AUF1. CircLARP2 sequestered AUF1 from binding to LKB1 mRNA, which led to decreased LKB1 mRNA stability and lower LKB1 protein levels. LKB1 as a kinase promoted the phosphorylation of AMPK and then the phosphorylation of ACC, the rate limiting enzyme of fatty acid synthesis. Knockdown of Lkb1 with AAV8-shLkb1 in mice HCC model also proved that Lkb1 was a key element in the regulation. Through this AUF1-LKB1-AMPK-ACC pathway, circLARP2 promoted HCC metastasis and lipid accumulation.

2023-03-10 | ST002395 | MetabolomicsWorkbench

3-D culture cell lines mimic tumor in hepatocellular carcinoma

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2023-09-18 | PXD036831 | JPOST Repository

Transcriptome Analysis of PBMCs in peripheral blood of patients with hepatocellular carcinoma

Project description:Transcriptome Analysis of PBMCs in peripheral blood of patients with hepatocellular carcinoma

| PRJNA494021 | ENA

Gene expression profiles of human hepatocellular carcinoma (validation set)

Project description:Hepatocellular carcinoma (HCC) in young subjects is rare but more devastating. We hypothesize that genes and etiological pathways are unique to young HCC (yHCC; ≤40 years old at diagnosis) patients. We therefore compared the gene expression profiles between yHCCs and HCCs from elderly patients.

2014-07-31 | GSE45435 | GEO

Checkpoint Inhibitors Modulate Plasticity of Innate Lymphoid Cells in Peripheral Blood of Patients with Hepatocellular Carcinoma

Project description:Introduction: The role of innate lymphoid cells (ILC) in cancer and specifically in the context of hepatocellular carcinoma (HCC) is not well understood. Immune checkpoint inhibitors (ICI) have been approved for treatment of patients with HCC. The effect of ICI on ILCs has not been explored. Methods: We studied ILCs in PBMCs of 51 patients with HCC at baseline and after treatment with ICI. Flow cytometry was used to study ILC composition. Single-cell RNA-sequencing using a targeted panel of 405 immune-related genes was used to characterize the transcriptomic profiles as well as cellular trajectory of ILCs before and after ICI therapy. Intracellular cytokine staining was used to validate ILC function. Data from large patient cohorts were used to predict association with survival. Results: Characterization of the ILC subgroups in PBMCs of HCC patients revealed a significant increase in ILC1 and a decrease in ILC3 frequencies. Single cell RNA-sequencing identified a subgroup of NK-like ILCs which expressed cytotoxicity markers as well as NKp80/KLRF1. This KLRF1high-NK-like population showed low abundance in patients with HCC and was enhanced after combined anti-CTLA-4 and anti-PD-1 immunotherapy. Trajectory analysis placed this population in between ILC1 and ILC3s. The transcriptomic signature of KLRF1high NK-like ILCs was associated with better progression-free survival in HCC cohorts. Conclusions: We present a previously unknown effect of HCC tumors and ICIs on the composition and plasticity of ILCs in PBMCs. We identified a cytotoxic KLRF1high-NK-like subgroup which was associated with better survival, absent in untreated HCC patients, and enhanced upon ICI immunotherapy. Thus, ILCs from PBMC can be used to study changes in the innate immune system under immunotherapy.

2022-06-23 | GSE195648 | GEO

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