Radiological Assessment in Idiopathic Pulmonary Fibrosis (IPF) Patients According to MUC5B Polymorphism

The <i>MUC5B</i> rs35705950 mutant T allele is the strongest genetic risk factor for familial and sporadic IPF. We sought to determine whether <i>MUC5B</i> genotype influences radiological patterns of IPF at diagnosis, as well as their change over time, in patients on antifib...

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Main Authors: Elisabetta Cocconcelli, Nicol Bernardinello, Chiara Giraudo, Gioele Castelli, Clorinda Greco, Roberta Polverosi, Marina Saetta, Paolo Spagnolo, Elisabetta Balestro
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/24/15890
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author Elisabetta Cocconcelli
Nicol Bernardinello
Chiara Giraudo
Gioele Castelli
Clorinda Greco
Roberta Polverosi
Marina Saetta
Paolo Spagnolo
Elisabetta Balestro
author_facet Elisabetta Cocconcelli
Nicol Bernardinello
Chiara Giraudo
Gioele Castelli
Clorinda Greco
Roberta Polverosi
Marina Saetta
Paolo Spagnolo
Elisabetta Balestro
author_sort Elisabetta Cocconcelli
collection DOAJ
description The <i>MUC5B</i> rs35705950 mutant T allele is the strongest genetic risk factor for familial and sporadic IPF. We sought to determine whether <i>MUC5B</i> genotype influences radiological patterns of IPF at diagnosis, as well as their change over time, in patients on antifibrotic therapy. Among eighty-eight IPF patients, previously genotyped for MUC5B rs35705950, we considered seventy-eight patients who were evaluated for radiological quantification of the following features both at treatment initiation (HRCT1) and after 1 year (HRCT2): ground glass opacities (AS), reticulations (IS) and honeycombing (HC). Of the evaluated patients, 69% carried at least one copy of the T allele (TT/TG). Carriers of the T allele displayed similar FVC loss in the first year of treatment as GG carriers, but overall survival at the end of follow-up was longer in the TT/TG group, compared to the GG group. In the GG group, both the AS and HC increased significantly, whereas in the TT/TG group only HC increased over the first year of treatment. <i>MUC5B</i> rs35705950 GG carriers are associated with increased ground glass and honeycombing extent over time and worse survival than T allele carriers. Longitudinal HRCT may help define the prognostic role of the <i>MUC5B</i> rs35705950 genotype.
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spelling doaj.art-bfbf922a84e24cb2b0fae16078f25ad02023-11-24T15:29:46ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-12-0123241589010.3390/ijms232415890Radiological Assessment in Idiopathic Pulmonary Fibrosis (IPF) Patients According to MUC5B PolymorphismElisabetta Cocconcelli0Nicol Bernardinello1Chiara Giraudo2Gioele Castelli3Clorinda Greco4Roberta Polverosi5Marina Saetta6Paolo Spagnolo7Elisabetta Balestro8Respiratory Disease Unit, Department of Cardiac Thoracic Vascular Sciences, Public Health University of Padova, 35128 Padova, ItalyRespiratory Disease Unit, Department of Cardiac Thoracic Vascular Sciences, Public Health University of Padova, 35128 Padova, ItalyDepartment of Medicine-DIMED, Padova University Hospital, 35128 Padova, ItalyRespiratory Disease Unit, Department of Cardiac Thoracic Vascular Sciences, Public Health University of Padova, 35128 Padova, ItalySan Giovanni di Dio Hospital, 88900 Crotone, ItalyAntoniano Diagnostic Institute, 35123 Padova, ItalyRespiratory Disease Unit, Department of Cardiac Thoracic Vascular Sciences, Public Health University of Padova, 35128 Padova, ItalyRespiratory Disease Unit, Department of Cardiac Thoracic Vascular Sciences, Public Health University of Padova, 35128 Padova, ItalyRespiratory Disease Unit, Department of Cardiac Thoracic Vascular Sciences, Public Health University of Padova, 35128 Padova, ItalyThe <i>MUC5B</i> rs35705950 mutant T allele is the strongest genetic risk factor for familial and sporadic IPF. We sought to determine whether <i>MUC5B</i> genotype influences radiological patterns of IPF at diagnosis, as well as their change over time, in patients on antifibrotic therapy. Among eighty-eight IPF patients, previously genotyped for MUC5B rs35705950, we considered seventy-eight patients who were evaluated for radiological quantification of the following features both at treatment initiation (HRCT1) and after 1 year (HRCT2): ground glass opacities (AS), reticulations (IS) and honeycombing (HC). Of the evaluated patients, 69% carried at least one copy of the T allele (TT/TG). Carriers of the T allele displayed similar FVC loss in the first year of treatment as GG carriers, but overall survival at the end of follow-up was longer in the TT/TG group, compared to the GG group. In the GG group, both the AS and HC increased significantly, whereas in the TT/TG group only HC increased over the first year of treatment. <i>MUC5B</i> rs35705950 GG carriers are associated with increased ground glass and honeycombing extent over time and worse survival than T allele carriers. Longitudinal HRCT may help define the prognostic role of the <i>MUC5B</i> rs35705950 genotype.https://www.mdpi.com/1422-0067/23/24/15890MUC5B genotypeHRCT scoresIPF survival
spellingShingle Elisabetta Cocconcelli
Nicol Bernardinello
Chiara Giraudo
Gioele Castelli
Clorinda Greco
Roberta Polverosi
Marina Saetta
Paolo Spagnolo
Elisabetta Balestro
Radiological Assessment in Idiopathic Pulmonary Fibrosis (IPF) Patients According to MUC5B Polymorphism
International Journal of Molecular Sciences
MUC5B genotype
HRCT scores
IPF survival
title Radiological Assessment in Idiopathic Pulmonary Fibrosis (IPF) Patients According to MUC5B Polymorphism
title_full Radiological Assessment in Idiopathic Pulmonary Fibrosis (IPF) Patients According to MUC5B Polymorphism
title_fullStr Radiological Assessment in Idiopathic Pulmonary Fibrosis (IPF) Patients According to MUC5B Polymorphism
title_full_unstemmed Radiological Assessment in Idiopathic Pulmonary Fibrosis (IPF) Patients According to MUC5B Polymorphism
title_short Radiological Assessment in Idiopathic Pulmonary Fibrosis (IPF) Patients According to MUC5B Polymorphism
title_sort radiological assessment in idiopathic pulmonary fibrosis ipf patients according to muc5b polymorphism
topic MUC5B genotype
HRCT scores
IPF survival
url https://www.mdpi.com/1422-0067/23/24/15890
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