Construction of a prognostic model based on genome-wide methylation analysis of miRNAs for hepatocellular carcinoma

Zhaoqi Shi ¹, Xiaolong Liu ¹, Duguang Li ¹

⁰Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310000, China.

Epigenomics +

|

March 13, 2024

View abstract on PubMed

Summary

This study developed a prognostic model using microRNA (miRNA) gene methylation levels to predict outcomes for hepatocellular carcinoma (HCC) patients. The model, utilizing eight miRNAs, showed potential in forecasting patient prognosis.

Area Of Science

Oncology
Molecular Biology
Genetics

Background

Hepatocellular carcinoma (HCC) remains a leading cause of cancer-related mortality worldwide.
Accurate prognostic models are crucial for effective patient management and treatment strategies in HCC.
MicroRNAs (miRNAs) play significant roles in tumorigenesis and cancer progression, making them potential biomarkers.

Purpose Of The Study

To develop and validate a prognostic model for hepatocellular carcinoma (HCC) based on the methylation levels of miRNA genes.
To identify specific miRNAs whose methylation status can predict overall survival in HCC patients.
To assess the clinical utility of a miRNA methylation-based prognostic signature in HCC.

Main Methods

Utilized least absolute shrinkage and selection operator (LASSO) regression for feature selection.
Employed multivariate Cox regression analysis to construct the prognostic model.
Verified the methylation status and clinical relevance of a key miRNA (miR-223) in HCC tissues.

Main Results

A prognostic model comprising eight miRNAs was successfully developed.
The model demonstrated good predictive accuracy for overall survival at 1, 3, and 5 years (AUCs: 0.75, 0.81, 0.81, respectively).
Hypomethylation of miR-223 in HCC tissues correlated with Barcelona Clinic Liver Cancer (BCLC) staging and patient prognosis.

Conclusions

A prognostic model based on miRNA methylation levels can partially predict the prognosis of patients with hepatocellular carcinoma (HCC).
MiRNA methylation status represents a promising avenue for developing novel biomarkers and prognostic tools in HCC.
Further validation and clinical integration of this miRNA methylation signature are warranted for improved HCC patient care.

Keywords:

hepatocellular carcinoma methylation miR-223 miRNA prognostic model

Related Concept Videos

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...