Genetic Modifying Factors of Cystic Fibrosis Phenotype: A Challenge for Modern Medicine

Cystic fibrosis (CF) is a monogenic autosomal recessive disease caused by cystic fibrosis transmembrane conductance regulator (<i>CFTR</i>) gene mutations. CF is characterized by a high phenotypic variability present even in patients with the same genotype. This is due to the interventio...

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Main Authors: Lăcrămioara Ionela Butnariu, Elena Țarcă, Elena Cojocaru, Cristina Rusu, Ștefana Maria Moisă, Maria-Magdalena Leon Constantin, Eusebiu Vlad Gorduza, Laura Mihaela Trandafir
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/10/24/5821
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author Lăcrămioara Ionela Butnariu
Elena Țarcă
Elena Cojocaru
Cristina Rusu
Ștefana Maria Moisă
Maria-Magdalena Leon Constantin
Eusebiu Vlad Gorduza
Laura Mihaela Trandafir
author_facet Lăcrămioara Ionela Butnariu
Elena Țarcă
Elena Cojocaru
Cristina Rusu
Ștefana Maria Moisă
Maria-Magdalena Leon Constantin
Eusebiu Vlad Gorduza
Laura Mihaela Trandafir
author_sort Lăcrămioara Ionela Butnariu
collection DOAJ
description Cystic fibrosis (CF) is a monogenic autosomal recessive disease caused by cystic fibrosis transmembrane conductance regulator (<i>CFTR</i>) gene mutations. CF is characterized by a high phenotypic variability present even in patients with the same genotype. This is due to the intervention of modifier genes that interact with both the CFTR gene and environmental factors. The purpose of this review is to highlight the role of non-CFTR genetic factors (modifier genes) that contribute to phenotypic variability in CF. We analyzed literature data starting with candidate gene studies and continuing with extensive studies, such as genome-wide association studies (GWAS) and whole exome sequencing (WES). The results of both types of studies revealed that the number of modifier genes in CF patients is impressive. Their identification offers a new perspective on the pathophysiological mechanisms of the disease, paving the way for the understanding of other genetic disorders. In conclusion, in the future, genetic analysis, such as GWAS and WES, should be performed routinely. A challenge for future research is to integrate their results in the process of developing new classes of drugs, with a goal to improve the prognosis, increase life expectancy, and enhance quality of life among CF patients.
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spelling doaj.art-4322990395a44345b792697c389506e92023-11-23T08:56:43ZengMDPI AGJournal of Clinical Medicine2077-03832021-12-011024582110.3390/jcm10245821Genetic Modifying Factors of Cystic Fibrosis Phenotype: A Challenge for Modern MedicineLăcrămioara Ionela Butnariu0Elena Țarcă1Elena Cojocaru2Cristina Rusu3Ștefana Maria Moisă4Maria-Magdalena Leon Constantin5Eusebiu Vlad Gorduza6Laura Mihaela Trandafir7Department of Medical Genetics, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, RomaniaDepartment of Surgery II—Pediatric Surgery, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaşi, RomaniaDepartment of Morphofunctional Sciences I, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaşi, RomaniaDepartment of Medical Genetics, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, RomaniaDepartment of Mother and Child, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, RomaniaMedical I Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, RomaniaDepartment of Medical Genetics, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, RomaniaDepartment of Mother and Child, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, RomaniaCystic fibrosis (CF) is a monogenic autosomal recessive disease caused by cystic fibrosis transmembrane conductance regulator (<i>CFTR</i>) gene mutations. CF is characterized by a high phenotypic variability present even in patients with the same genotype. This is due to the intervention of modifier genes that interact with both the CFTR gene and environmental factors. The purpose of this review is to highlight the role of non-CFTR genetic factors (modifier genes) that contribute to phenotypic variability in CF. We analyzed literature data starting with candidate gene studies and continuing with extensive studies, such as genome-wide association studies (GWAS) and whole exome sequencing (WES). The results of both types of studies revealed that the number of modifier genes in CF patients is impressive. Their identification offers a new perspective on the pathophysiological mechanisms of the disease, paving the way for the understanding of other genetic disorders. In conclusion, in the future, genetic analysis, such as GWAS and WES, should be performed routinely. A challenge for future research is to integrate their results in the process of developing new classes of drugs, with a goal to improve the prognosis, increase life expectancy, and enhance quality of life among CF patients.https://www.mdpi.com/2077-0383/10/24/5821cystic fibrosisCFTRmodifier genesphenotypic variabilityGWAS
spellingShingle Lăcrămioara Ionela Butnariu
Elena Țarcă
Elena Cojocaru
Cristina Rusu
Ștefana Maria Moisă
Maria-Magdalena Leon Constantin
Eusebiu Vlad Gorduza
Laura Mihaela Trandafir
Genetic Modifying Factors of Cystic Fibrosis Phenotype: A Challenge for Modern Medicine
Journal of Clinical Medicine
cystic fibrosis
CFTR
modifier genes
phenotypic variability
GWAS
title Genetic Modifying Factors of Cystic Fibrosis Phenotype: A Challenge for Modern Medicine
title_full Genetic Modifying Factors of Cystic Fibrosis Phenotype: A Challenge for Modern Medicine
title_fullStr Genetic Modifying Factors of Cystic Fibrosis Phenotype: A Challenge for Modern Medicine
title_full_unstemmed Genetic Modifying Factors of Cystic Fibrosis Phenotype: A Challenge for Modern Medicine
title_short Genetic Modifying Factors of Cystic Fibrosis Phenotype: A Challenge for Modern Medicine
title_sort genetic modifying factors of cystic fibrosis phenotype a challenge for modern medicine
topic cystic fibrosis
CFTR
modifier genes
phenotypic variability
GWAS
url https://www.mdpi.com/2077-0383/10/24/5821
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