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Published on: May 12, 2020
Mutation-specific therapies and drug repositioning in cystic fibrosis
Valeria R Villella1, Antonella Tosco2, Speranza Esposito1
1European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.
Abstract:
Cystic fibrosis (CF) is an inherited, prematurely lethal rare disease affecting more than 85,000 people worldwide. CF is caused by more than 2000 loss-of-function mutations in the gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR). This review summarizes recent advances in the etiological therapies of CF that aim at repairing the functional defect of CFTR by means of CFTR modulators. We will discuss the state of art of the mutation-specific treatments that are designed to target different steps of the CFTR biogenesis perturbed by mutations in CFTR gene. Moreover, we will discuss how drug repositioning, namely the use of drugs already approved for the treatment of other human diseases, may be repurposed in CF patients to circumvent CFTR dysfunction. Finally, we highlight how the combined use of two or more compounds acting on different disease mechanisms is required to achieve clinical benefit in CF population.
Insights
Cystic fibrosis (CF) treatments are advancing with CFTR modulators that repair gene defects. Combining drugs targeting different mechanisms is key for patient benefit.
Area of Science:
- Genetics and Molecular Biology
- Pharmacology
- Rare Diseases
Background:
- Cystic fibrosis (CF) is a rare, inherited disease impacting over 85,000 individuals globally.
- Over 2000 loss-of-function mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene cause CF.
- Current treatments focus on managing symptoms, but etiological therapies are emerging.
Purpose of the Study:
- To review recent advancements in etiological therapies for CF.
- To discuss the role of CFTR modulators in repairing CFTR functional defects.
- To explore mutation-specific treatments and drug repositioning strategies for CF.
Main Methods:
- Literature review of recent research on CFTR modulators and therapeutic strategies.
- Analysis of mutation-specific treatments targeting CFTR biogenesis.
- Evaluation of drug repositioning for CF patient care.
Main Results:
- CFTR modulators represent a significant advance in treating the root cause of CF.
- Mutation-specific therapies are being developed to address diverse CFTR gene defects.
- Drug repositioning offers a promising avenue for circumventing CFTR dysfunction.
- Combined therapies show potential for greater clinical benefit in CF patients.
Conclusions:
- CFTR modulators are a promising etiological therapy for cystic fibrosis.
- Personalized, mutation-specific treatments combined with drug repositioning are crucial.
- Multidrug approaches are necessary to achieve significant clinical benefits for the CF population.
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