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Towards next generation therapies for cystic fibrosis: Folding, function and pharmacology of CFTR.


ABSTRACT: The treatment of cystic fibrosis (CF) has been transformed by orally-bioavailable small molecule modulators of the cystic fibrosis transmembrane conductance regulator (CFTR), which restore function to CF mutants. However, CFTR modulators are not available to all people with CF and better modulators are required to prevent disease progression. Here, we review selectively recent advances in CFTR folding, function and pharmacology. We highlight ensemble and single-molecule studies of CFTR folding, which provide new insight into CFTR assembly, its perturbation by CF mutations and rescue by CFTR modulators. We discuss species-dependent differences in the action of the F508del-CFTR mutation on CFTR expression, stability and function, which might influence pharmacological studies of CFTR modulators in CF animal models. Finally, we illuminate the identification of combinations of two CFTR potentiators (termed co-potentiators), which restore therapeutically-relevant levels of CFTR activity to rare CF mutations. Thus, mechanistic studies of CFTR folding, function and pharmacology inform the development of highly effective CFTR modulators.

SUBMITTER: Bose SJ 

PROVIDER: S-EPMC7052731 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Towards next generation therapies for cystic fibrosis: Folding, function and pharmacology of CFTR.

Bose Samuel J SJ   Krainer Georg G   Ng Demi R S DRS   Schenkel Mathias M   Shishido Hideki H   Yoon Jae Seok JS   Haggie Peter M PM   Schlierf Michael M   Sheppard David N DN   Skach William R WR  

Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society 20200103


The treatment of cystic fibrosis (CF) has been transformed by orally-bioavailable small molecule modulators of the cystic fibrosis transmembrane conductance regulator (CFTR), which restore function to CF mutants. However, CFTR modulators are not available to all people with CF and better modulators are required to prevent disease progression. Here, we review selectively recent advances in CFTR folding, function and pharmacology. We highlight ensemble and single-molecule studies of CFTR folding,  ...[more]

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