The role of m6A regulators mRNA expression in peripheral blood mononuclear cells in chronic hepatitis B: a novel diagnostic and prognostic indicator

Abstract Background Chronic hepatitis B (CHB) is a major health problem worldwide and is a major contributor to the progression of cirrhosis and hepatocellular carcinoma (HCC). Accurate monitoring of the immune response and liver inflammation in CHB patients is critical for effective disease managem...

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Main Authors: Xiu Han, Chengyu Xu, Yahui Song, Xiangwei Wu, Liting Zhou, Tianfeng Wu, Yiling Chen, Lin Wang, Qingzhen Han
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Gastroenterology
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Online Access:https://doi.org/10.1186/s12876-025-04067-8
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author Xiu Han
Chengyu Xu
Yahui Song
Xiangwei Wu
Liting Zhou
Tianfeng Wu
Yiling Chen
Lin Wang
Qingzhen Han
author_facet Xiu Han
Chengyu Xu
Yahui Song
Xiangwei Wu
Liting Zhou
Tianfeng Wu
Yiling Chen
Lin Wang
Qingzhen Han
author_sort Xiu Han
collection DOAJ
description Abstract Background Chronic hepatitis B (CHB) is a major health problem worldwide and is a major contributor to the progression of cirrhosis and hepatocellular carcinoma (HCC). Accurate monitoring of the immune response and liver inflammation in CHB patients is critical for effective disease management. N6-methyladenosine (m6A) plays a pivotal role in viral replication and immune modulation. However, the clinical significance of m6A regulators in the host immune system during CHB is still unclear. This study investigated the expression of key m6A regulators (METTL3, METTL14, IGF2BP3, and ALKBH5) in peripheral blood mononuclear cells (PBMCs) from CHB patients to explore their potential as noninvasive biomarkers for CHB diagnosis. Methods A total of 119 participants were recruited, among which 101 were CHB patients and 18 were healthy controls. PBMCs were isolated, and the mRNA expression levels of four key m6A regulators were analysed via quantitative real-time PCR (qRT‒PCR). Spearman correlation analysis was used to investigate the relationships between m6A regulator expression and inflammatory markers. Univariate and multivariate logistic regression analyses were performed to identify independent risk factors for CHB. Results The mRNA expression levels of METTL3 decreased in the LC, CHB (no-LC) (CHB without LC) and HC (healthy control) groups, and the differences were statistically significant (P < 0.05). METTL14 demonstrated a comparable expression pattern, although significant differences were evident only between the LC and HC groups (P < 0.05). ALKBH5 and IGF2BP3 levels were lower in LC patients than in CHB patients (non-LC patients) (P < 0.05). Moreover, METTL3 and METTL14 were negatively correlated with inflammation and cirrhosis markers, such as the neutrophil‒lymphocyte ratio (NLR) and the platelet‒lymphocyte ratio (PLR), but positively correlated with the lymphocyte‒monocyte ratio (LMR) (P < 0.05). Univariate analysis identified METTL3, PLR and AST as significant predictors of CHB. Multivariate logistic regression confirmed that reduced METTL3 expression, PLR and AST were independent risk factors for CHB progression (P < 0.05). Conclusion These findings suggest that m6A regulators, particularly METTL3, are associated with CHB progression and immune response modulation. METTL3, in combination with other inflammatory markers, is a promising non-invasive biomarker for monitoring CHB disease activity, providing new insights into HBV-related disease progression and potential therapeutic targets.
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spelling doaj-art-5a69976c2b5f4eac967d47e2ae8b34002025-08-20T03:03:28ZengBMCBMC Gastroenterology1471-230X2025-07-012511910.1186/s12876-025-04067-8The role of m6A regulators mRNA expression in peripheral blood mononuclear cells in chronic hepatitis B: a novel diagnostic and prognostic indicatorXiu Han0Chengyu Xu1Yahui Song2Xiangwei Wu3Liting Zhou4Tianfeng Wu5Yiling Chen6Lin Wang7Qingzhen Han8Center of Clinical Laboratory and Translation medicine, Suzhou Dushu Lake Hospital, The Fourth Affiliated Hospital of Soochow University, Medical Center of Soochow UniversityCenter of Clinical Laboratory and Translation medicine, Suzhou Dushu Lake Hospital, The Fourth Affiliated Hospital of Soochow University, Medical Center of Soochow UniversityCenter of Clinical Laboratory and Translation medicine, Suzhou Dushu Lake Hospital, The Fourth Affiliated Hospital of Soochow University, Medical Center of Soochow UniversityCenter of Clinical Laboratory and Translation medicine, Suzhou Dushu Lake Hospital, The Fourth Affiliated Hospital of Soochow University, Medical Center of Soochow UniversityCenter of Clinical Laboratory and Translation medicine, Suzhou Dushu Lake Hospital, The Fourth Affiliated Hospital of Soochow University, Medical Center of Soochow UniversityCenter of Clinical Laboratory and Translation medicine, Suzhou Dushu Lake Hospital, The Fourth Affiliated Hospital of Soochow University, Medical Center of Soochow UniversityDepartment of Infectious Diseases, First Affiliated Hospital of Soochow UniversityCenter of Clinical Laboratory and Translation medicine, Suzhou Dushu Lake Hospital, The Fourth Affiliated Hospital of Soochow University, Medical Center of Soochow UniversityCenter of Clinical Laboratory and Translation medicine, Suzhou Dushu Lake Hospital, The Fourth Affiliated Hospital of Soochow University, Medical Center of Soochow UniversityAbstract Background Chronic hepatitis B (CHB) is a major health problem worldwide and is a major contributor to the progression of cirrhosis and hepatocellular carcinoma (HCC). Accurate monitoring of the immune response and liver inflammation in CHB patients is critical for effective disease management. N6-methyladenosine (m6A) plays a pivotal role in viral replication and immune modulation. However, the clinical significance of m6A regulators in the host immune system during CHB is still unclear. This study investigated the expression of key m6A regulators (METTL3, METTL14, IGF2BP3, and ALKBH5) in peripheral blood mononuclear cells (PBMCs) from CHB patients to explore their potential as noninvasive biomarkers for CHB diagnosis. Methods A total of 119 participants were recruited, among which 101 were CHB patients and 18 were healthy controls. PBMCs were isolated, and the mRNA expression levels of four key m6A regulators were analysed via quantitative real-time PCR (qRT‒PCR). Spearman correlation analysis was used to investigate the relationships between m6A regulator expression and inflammatory markers. Univariate and multivariate logistic regression analyses were performed to identify independent risk factors for CHB. Results The mRNA expression levels of METTL3 decreased in the LC, CHB (no-LC) (CHB without LC) and HC (healthy control) groups, and the differences were statistically significant (P < 0.05). METTL14 demonstrated a comparable expression pattern, although significant differences were evident only between the LC and HC groups (P < 0.05). ALKBH5 and IGF2BP3 levels were lower in LC patients than in CHB patients (non-LC patients) (P < 0.05). Moreover, METTL3 and METTL14 were negatively correlated with inflammation and cirrhosis markers, such as the neutrophil‒lymphocyte ratio (NLR) and the platelet‒lymphocyte ratio (PLR), but positively correlated with the lymphocyte‒monocyte ratio (LMR) (P < 0.05). Univariate analysis identified METTL3, PLR and AST as significant predictors of CHB. Multivariate logistic regression confirmed that reduced METTL3 expression, PLR and AST were independent risk factors for CHB progression (P < 0.05). Conclusion These findings suggest that m6A regulators, particularly METTL3, are associated with CHB progression and immune response modulation. METTL3, in combination with other inflammatory markers, is a promising non-invasive biomarker for monitoring CHB disease activity, providing new insights into HBV-related disease progression and potential therapeutic targets.https://doi.org/10.1186/s12876-025-04067-8Hepatitis B virus (HBV)RNA m6A methylation (m6A)Chronic hepatitis BPeripheral blood mononuclear cells (PBMCs)METTL3
spellingShingle Xiu Han
Chengyu Xu
Yahui Song
Xiangwei Wu
Liting Zhou
Tianfeng Wu
Yiling Chen
Lin Wang
Qingzhen Han
The role of m6A regulators mRNA expression in peripheral blood mononuclear cells in chronic hepatitis B: a novel diagnostic and prognostic indicator
BMC Gastroenterology
Hepatitis B virus (HBV)
RNA m6A methylation (m6A)
Chronic hepatitis B
Peripheral blood mononuclear cells (PBMCs)
METTL3
title The role of m6A regulators mRNA expression in peripheral blood mononuclear cells in chronic hepatitis B: a novel diagnostic and prognostic indicator
title_full The role of m6A regulators mRNA expression in peripheral blood mononuclear cells in chronic hepatitis B: a novel diagnostic and prognostic indicator
title_fullStr The role of m6A regulators mRNA expression in peripheral blood mononuclear cells in chronic hepatitis B: a novel diagnostic and prognostic indicator
title_full_unstemmed The role of m6A regulators mRNA expression in peripheral blood mononuclear cells in chronic hepatitis B: a novel diagnostic and prognostic indicator
title_short The role of m6A regulators mRNA expression in peripheral blood mononuclear cells in chronic hepatitis B: a novel diagnostic and prognostic indicator
title_sort role of m6a regulators mrna expression in peripheral blood mononuclear cells in chronic hepatitis b a novel diagnostic and prognostic indicator
topic Hepatitis B virus (HBV)
RNA m6A methylation (m6A)
Chronic hepatitis B
Peripheral blood mononuclear cells (PBMCs)
METTL3
url https://doi.org/10.1186/s12876-025-04067-8
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