نتایج جستجو برای: cystic fibrosis transmembrane regulator cftr
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Cystic fibrosis is a fatal inherited disease that is caused by mutations in the gene encoding a cAMP-activated chloride channel, the cystic fibrosis transmembrane conductance regulator (CFTR). It has been suggested that the cystic fibrosis phenotype might be modulated by the presence of other Cl(-) channels that are coexpressed with CFTR in some epithelial cells. Because the broadly expressed p...
The median life expectancy for cystic fibrosis is now over 30 years, and it is projected that in newborn infants it will become more than 40 years. The identification of the cystic fibrosis gene and its product, cystic fibrosis transmembrane conductance regulator (CFTR), has widened the spectrum of the disease from the classical case of the infant with cystic fibrosis to the elderly childless m...
The cystic fibrosis transmembrane conductance regulator (CFTR) is an anion channel evolved from the ATP-binding cassette (ABC) transporter family. In this study, we determined the structure of zebrafish CFTR in the absence of ATP by electron cryo-microscopy to 3.7 Å resolution. Human and zebrafish CFTR share 55% sequence identity, and 42 of the 46 cystic-fibrosis-causing missense mutational sit...
miR-17 overexpression in cystic fibrosis airway epithelial cells decreases interleukin-8 production.
Interleukin (IL)-8 levels are higher than normal in cystic fibrosis (CF) airways, causing neutrophil infiltration and non-resolving inflammation. Overexpression of microRNAs that target IL-8 expression in airway epithelial cells may represent a therapeutic strategy for cystic fibrosis. IL-8 protein and mRNA were measured in cystic fibrosis and non-cystic fibrosis bronchoalveolar lavage fluid an...
We have raised mouse monoclonal antibodies to eight synthetic peptides corresponding to different regions of the human cystic fibrosis transmembrane conductance regulator (CFTR) and rabbit polyclonal antisera to beta-galactosidase fusion proteins which encompass three different regions of CFTR. Immunoblot, immunoprecipitation, immunofluorescence and immunocytochemical experiments demonstrate th...
The cystic fibrosis transmembrane conductance regulator (CFTR) is an anion channel that supports proper functioning of lungs and secretory glands; dysfunction CFTR causes the lethal disease Cystic Fibrosis (CF). elucidation atomistic structures full-length provided exciting opportunities to understanding molecular basis CF. Despite having been activated through phosphorylation with ATP ligands,...
Intracellular protein traffic plays an important role in the regulation of Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) chloride channels. Microtubule and actin-based motor proteins direct CFTR movement along trafficking pathways. As shown for other regulatory proteins such as adaptors, the involvement of protein motors in CFTR traffic is cell-type specific. Understanding motor sp...
Cystic fibrosis (CF) is caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. CFTR mutations lead to production of non-functional CFTR, reduced amounts of normal functioning CFTR or misfolded CFTR with defects in trafficking or function. For decades, CF treatment has been focused on the symptoms of CF, but pharmacotherapy using small molecules that target t...
BACKGROUND Mutational combinations of the cystic fibrosis transmembrane conductance regulator, CFTR, gene have different phenotypic manifestations at the molecular level with varying clinical consequences for individuals possessing such mutations. Reporting cystic fibrosis transmembrane conductance regulator mutations is important in understanding the genotype-phenotype correlations and associa...
The genetic disease cystic fibrosis is caused by mutation of the gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR). Controversial studies reported regulation of the epithelial sodium channel (ENaC) by CFTR. We found that uptake of (22)Na(+) through ENaC is modulated by activation of CFTR in oocytes, coexpressing CFTR and ENaC, depending on extracellular chloride con...
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