The identification and cloning of the gene that encodes the cystic fibrosis transmembrane conductance regulator (CFTR) was a landmark in cystic fibrosis (CF) research. But as soon as the amino acid sequence was deduced several questions were obvious. What is the function of CFTR and how do its different domains control its function? How do CF- associated mutations cause dysfunction in CFTR? How do mutations in CFTR produce the pathogenesis and pathophysiology of the lung disease? These three questions re the focus of this SCOR. The application contains four projects that use basic and clinical research techniques to address the questions. The collaborations and interactions between the investigators on the four projects and the Cell Culture Core provide the best possible environment to increase our understanding of this disease.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Specialized Center (P50)
Project #
5P50HL042385-08
Application #
2220448
Study Section
Special Emphasis Panel (ZHL1-CSR-B (M2))
Project Start
1988-09-30
Project End
1998-08-31
Budget Start
1995-09-20
Budget End
1996-08-31
Support Year
8
Fiscal Year
1995
Total Cost
Indirect Cost
Name
University of Iowa
Department
Internal Medicine/Medicine
Type
Schools of Medicine
DUNS #
041294109
City
Iowa City
State
IA
Country
United States
Zip Code
52242
Graham, Scott M; Scott, Shaun N; Launspach, Janice et al. (2002) The effects of fluticasone propionate on nasal epithelial potential difference. Am J Rhinol 16:145-9
Welsh, Michael J; Price, Margaret P; Xie, Jinghui (2002) Biochemical basis of touch perception: mechanosensory function of degenerin/epithelial Na+ channels. J Biol Chem 277:2369-72
Ostedgaard, L S; Baldursson, O; Welsh, M J (2001) Regulation of the cystic fibrosis transmembrane conductance regulator Cl- channel by its R domain. J Biol Chem 276:7689-92
Sawai, M V; Jia, H P; Liu, L et al. (2001) The NMR structure of human beta-defensin-2 reveals a novel alpha-helical segment. Biochemistry 40:3810-6
Prince, L S; Karp, P H; Moninger, T O et al. (2001) KGF alters gene expression in human airway epithelia: potential regulation of the inflammatory response. Physiol Genomics 6:81-9
Zabner, J; Seiler, M P; Launspach, J L et al. (2000) The osmolyte xylitol reduces the salt concentration of airway surface liquid and may enhance bacterial killing. Proc Natl Acad Sci U S A 97:11614-9
Jepsen, M; Graham, S; Karp, P H et al. (2000) Effect of topical nasal pharmaceuticals on sodium and chloride transport by human airway epithelia. Am J Rhinol 14:405-9
Ostedgaard, L S; Zeiher, B; Welsh, M J (1999) Processing of CFTR bearing the P574H mutation differs from wild-type and deltaF508-CFTR. J Cell Sci 112 ( Pt 13):2091-8
Cotten, J F; Welsh, M J (1999) Cystic fibrosis-associated mutations at arginine 347 alter the pore architecture of CFTR. Evidence for disruption of a salt bridge. J Biol Chem 274:5429-35
McCray Jr, P B; Zabner, J; Jia, H P et al. (1999) Efficient killing of inhaled bacteria in DeltaF508 mice: role of airway surface liquid composition. Am J Physiol 277:L183-90

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