Association of the MUC5B promoter polymorphism with idiopathic pulmonary fibrosis in a lebanese cohort

Background and objectiveIdiopathic Pulmonary Fibrosis (IPF) is an interstitial lung disease that causes irreversible alterations in the architecture of the lung parenchyma, leading to impaired ventilation. Both environmental factors and genetic predisposition play significant roles in the developmen...

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Main Authors: Antoine Mouawad, Eliane Chouery, Alain Chebly, Nabiha Salem, Sandra Corbani, Maissa Safieddine, Georges Dabar
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Genetics
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Online Access:https://www.frontiersin.org/articles/10.3389/fgene.2025.1544864/full
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author Antoine Mouawad
Eliane Chouery
Alain Chebly
Alain Chebly
Nabiha Salem
Sandra Corbani
Maissa Safieddine
Georges Dabar
author_facet Antoine Mouawad
Eliane Chouery
Alain Chebly
Alain Chebly
Nabiha Salem
Sandra Corbani
Maissa Safieddine
Georges Dabar
author_sort Antoine Mouawad
collection DOAJ
description Background and objectiveIdiopathic Pulmonary Fibrosis (IPF) is an interstitial lung disease that causes irreversible alterations in the architecture of the lung parenchyma, leading to impaired ventilation. Both environmental factors and genetic predisposition play significant roles in the development of IPF. A single nucleotide polymorphism (SNP) (rs35705950) within the promoter of the mucin 5B gene (MUC5B) has been reported to be associated with the disease; however, no data is available from Lebanon or the Middle East. This study aims to identify the frequency of the MUC5B promoter variant among a cohort of Lebanese IPF patients, compare it to the general population and assess its association with the risk of developing the disease.MethodsA total of 55 patients diagnosed with IPF, according to the ATS/ERS criteria, and 94 healthy controls were included in the study. DNA samples were extracted and genotyped for the MUC5B promoter polymorphism by Sanger sequencing. Descriptive statistics were performed on clinical characteristics. Pearson’s chi-squared and T-student tests were performed to determine statistical significance. Odds ratios quantified genetic variant associations with IPF.ResultsThe MUC5B SNP rs35705950 was significantly more frequent in IPF patients compared to the control group, in both heterozygous and homozygous forms. Additionally, a significant association was found between the variant and susceptibility to IPF.ConclusionThis study shows that the MUC5B polymorphism rs35705950 is significantly more frequent in the Lebanese IPF population compared to the control group and is associated with an increased risk of developing IPF.
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spelling doaj-art-839f508e2afb4a16bdfea79aa24bd0ff2025-08-20T03:16:16ZengFrontiers Media S.A.Frontiers in Genetics1664-80212025-06-011610.3389/fgene.2025.15448641544864Association of the MUC5B promoter polymorphism with idiopathic pulmonary fibrosis in a lebanese cohortAntoine Mouawad0Eliane Chouery1Alain Chebly2Alain Chebly3Nabiha Salem4Sandra Corbani5Maissa Safieddine6Georges Dabar7Faculty of Medicine, Saint Joseph University of Beirut, Beirut, LebanonCenter Jacques Loiselet for Medical Genetics and Genomics (CGGM), Faculty of Medicine, Saint Joseph University of Beirut, Beirut, LebanonFaculty of Medicine, Saint Joseph University of Beirut, Beirut, LebanonCenter Jacques Loiselet for Medical Genetics and Genomics (CGGM), Faculty of Medicine, Saint Joseph University of Beirut, Beirut, LebanonCenter Jacques Loiselet for Medical Genetics and Genomics (CGGM), Faculty of Medicine, Saint Joseph University of Beirut, Beirut, LebanonCenter Jacques Loiselet for Medical Genetics and Genomics (CGGM), Faculty of Medicine, Saint Joseph University of Beirut, Beirut, LebanonCentre de Recherche Clinique, Faculty of Medicine, Saint Joseph University of Beirut, Beirut, LebanonDepartment of Pulmonology and Critical Care, Hotel Dieu de France Hospital, Beirut, LebanonBackground and objectiveIdiopathic Pulmonary Fibrosis (IPF) is an interstitial lung disease that causes irreversible alterations in the architecture of the lung parenchyma, leading to impaired ventilation. Both environmental factors and genetic predisposition play significant roles in the development of IPF. A single nucleotide polymorphism (SNP) (rs35705950) within the promoter of the mucin 5B gene (MUC5B) has been reported to be associated with the disease; however, no data is available from Lebanon or the Middle East. This study aims to identify the frequency of the MUC5B promoter variant among a cohort of Lebanese IPF patients, compare it to the general population and assess its association with the risk of developing the disease.MethodsA total of 55 patients diagnosed with IPF, according to the ATS/ERS criteria, and 94 healthy controls were included in the study. DNA samples were extracted and genotyped for the MUC5B promoter polymorphism by Sanger sequencing. Descriptive statistics were performed on clinical characteristics. Pearson’s chi-squared and T-student tests were performed to determine statistical significance. Odds ratios quantified genetic variant associations with IPF.ResultsThe MUC5B SNP rs35705950 was significantly more frequent in IPF patients compared to the control group, in both heterozygous and homozygous forms. Additionally, a significant association was found between the variant and susceptibility to IPF.ConclusionThis study shows that the MUC5B polymorphism rs35705950 is significantly more frequent in the Lebanese IPF population compared to the control group and is associated with an increased risk of developing IPF.https://www.frontiersin.org/articles/10.3389/fgene.2025.1544864/fullidiopathic pulmonary fibrosisrisk factorMUC5Brs35705950promoter polymorphismsingle nucleotide polymorphism
spellingShingle Antoine Mouawad
Eliane Chouery
Alain Chebly
Alain Chebly
Nabiha Salem
Sandra Corbani
Maissa Safieddine
Georges Dabar
Association of the MUC5B promoter polymorphism with idiopathic pulmonary fibrosis in a lebanese cohort
Frontiers in Genetics
idiopathic pulmonary fibrosis
risk factor
MUC5B
rs35705950
promoter polymorphism
single nucleotide polymorphism
title Association of the MUC5B promoter polymorphism with idiopathic pulmonary fibrosis in a lebanese cohort
title_full Association of the MUC5B promoter polymorphism with idiopathic pulmonary fibrosis in a lebanese cohort
title_fullStr Association of the MUC5B promoter polymorphism with idiopathic pulmonary fibrosis in a lebanese cohort
title_full_unstemmed Association of the MUC5B promoter polymorphism with idiopathic pulmonary fibrosis in a lebanese cohort
title_short Association of the MUC5B promoter polymorphism with idiopathic pulmonary fibrosis in a lebanese cohort
title_sort association of the muc5b promoter polymorphism with idiopathic pulmonary fibrosis in a lebanese cohort
topic idiopathic pulmonary fibrosis
risk factor
MUC5B
rs35705950
promoter polymorphism
single nucleotide polymorphism
url https://www.frontiersin.org/articles/10.3389/fgene.2025.1544864/full
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