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Am J Physiol Cell Physiol 280: C228-C236, 2001;
0363-6143/01 $5.00
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Vol. 280, Issue 1, C228-C236, January 2001

Generation and phenotype of cell lines derived from CF and non-CF mice that carry the H-2Kb-tsA58 transgene

Marcia Takacs-Jarrett, William E. Sweeney, Ellis D. Avner, and Calvin U. Cotton

Departments of Pediatrics and Physiology and Biophysics, Case Western Reserve University, Cleveland, Ohio 44106-4948

Tracheal, renal, salivary, and pancreatic epithelial cells from cystic fibrosis [CF; cystic fibrosis transmembrane conductance regulator (CFTR) -/-] and non-CF mice that carry a temperature-sensitive SV40 large T antigen oncogene (ImmortoMouse) were isolated and maintained in culture under permissive conditions (33°C with interferon-gamma ). The resultant cell lines have been in culture for >1 year and 50 passages. Each of the eight cell lines form polarized epithelial barriers and exhibit regulated, electrogenic ion transport. The four non-CF cell lines (mTEC1, mCT1, mSEC1, and mPEC1) express cAMP-regulated Cl- permeability and cAMP-stimulated Cl- secretion. In contrast, the four CFTR -/- cell lines (mTEC1-CF, mCT1-CF, mSEC1-CF, and mPEC1-CF) each lack cAMP-stimulated Cl- secretory responses. Ca2+-activated Cl- secretion is retained in both CF and non-CF cell lines. Thus we have generated genetically well-matched epithelial cell lines from several tissues relevant to cystic fibrosis that either completely lack CFTR or express endogenous levels of CFTR. These cell lines should prove useful for studies of regulation of epithelial cell function and the role of CFTR in cell physiology.

cystic fibrosis; murine epithelial cell lines; ts-sv40 large T antigen; cystic fibrosis transmembrane conductance regulator; calcium-activated chloride secretion


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