CFTR expression and chloride secretion in polarized immortal human bronchial epithelial cells.

A. L. Cozens, M. J. Yezzi, K. Kunzelmann, T. Ohrui, L. Chin, K. Eng, W. E. Finkbeiner, J. H. Widdicombe, D. C. Gruenert

    Research output: Contribution to journalArticle

    694 Citations (Scopus)

    Abstract

    A major limitation in the study of vectorial ion transport, secretion, and differentiated function in the human airway epithelium has been the lack of suitable cell culture systems. Progress in this direction has been made through the transformation of primary cultured epithelial cells. However, these transformants tend to lose differentiated properties with increasing serial passage, particularly following crisis. The successful establishment of a postcrisis SV40 large T-antigen transformed epithelial cell line derived from human bronchial epithelium is described. This cell line, 16HBE14o-, retains differentiated epithelial morphology and functions. Cell cultures show the presence of tight junctions and cilia, and monolayers generate transepithelial resistance, as measured in Ussing chambers, and retain beta-adrenergic stimulation of cAMP-dependent chloride ion transport, measured either by 36Cl- efflux or as short-circuit current in Ussing chambers. The cells also increase chloride transport in response to bradykinin or calcium ionophore. In addition, 16HBE14o- cells express levels of both the cystic fibrosis transmembrane conductance regulator (CFTR) mRNA and protein readily detectable by Northern and Western hybridization analysis, respectively. These cells provide a valuable resource for studying the modulation of CFTR and its role in regulation of chloride ion transport in human airway epithelium as well as other aspects of human airway cell biology.

    Original languageEnglish
    Pages (from-to)38-47
    Number of pages10
    JournalAmerican journal of respiratory cell and molecular biology
    Volume10
    Issue number1
    DOIs
    Publication statusPublished - 1994 Jan

    ASJC Scopus subject areas

    • Molecular Biology
    • Pulmonary and Respiratory Medicine
    • Clinical Biochemistry
    • Cell Biology

    Fingerprint Dive into the research topics of 'CFTR expression and chloride secretion in polarized immortal human bronchial epithelial cells.'. Together they form a unique fingerprint.

  • Cite this

    Cozens, A. L., Yezzi, M. J., Kunzelmann, K., Ohrui, T., Chin, L., Eng, K., Finkbeiner, W. E., Widdicombe, J. H., & Gruenert, D. C. (1994). CFTR expression and chloride secretion in polarized immortal human bronchial epithelial cells. American journal of respiratory cell and molecular biology, 10(1), 38-47. https://doi.org/10.1165/ajrcmb.10.1.7507342