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Human tracheal gland serous (HTGS) cells are now considered one principal pulmonary target for the gene therapy of cystic fibrosis (CF). We developed a CF tracheal gland serous cell line, CF-KM4, obtained by the transformation of primary cultures of CF tracheal gland serous cells homozygous for the DeltaF508 mutation by using the wild-type SV40 virus. This(More)
Human tracheal gland cells are believed to be a major site at the origin of cystic fibrosis. Since this disease is due to mutations in a protein called CFTR, we looked for the activity of CFTR in human tracheal gland cells in culture. We have identified CFTR-like chloride-selective channels as having a linear current voltage relationship and unitary(More)
"Cystic fibrosis protein" (CFP), a minor serum protein marker of the cystic fibrosis allele, was isolated from serum from patients with cystic fibrosis by use of the "FPLC" high-resolution chromatography system and preparative sodium dodecyl sulfate-polyacrylamide gel electrophoresis. CFP currently is characterized by its isoelectric point (8.4) on(More)
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