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  • The characterization of the human nasal epithelial cell line RPMI 2650 under different culture conditions and their optimization for an appropriate in vitro nasal model
    Erdani-Kreft, Mateja ...
    Purpose: The further characterization of the cell line RPMI 2650 and the evaluation of different culture conditions for an in vitro model for nasal mucosa. Methods: Cells were cultured in media MEM ... or A-MEM at air-liquid (A-L) or liquid-liquid (L-L) interfaces for 1 or 3 weeks. Different cryopreservation methods and cell culture techniques were evaluated with immunolabelling of junctional proteins, ultrastructural analysis using electron microscopy, transepithelial electrical resistance (TEER) measurements, permeation studies with dextran and jacalin, and gene expressionprofiling of 84 drug transporters. Results: Cell proliferation anddifferentiation depended on the used medium. The established epithelia expressed occludin, claudin-1, and E-cadherin under all conditions. Cells grown at the A-L interface formed more layers and exhibited a higher TEER and lower dextran and jacalin permeability than at the L-L interface, where cells morphologically exhibited a more differentiated phenotype. The expression of ABC and SLC transporters depended on culture duration and interface. Conclusions: The RPMI 2650 cells form a polarized epithelium resembling nasalmucosa. However, different culture conditions have a significant effect on cell ultrastructure, barrier integrity, and gene expression, and should be considered when using this cell line as an in vitro model for drug permeability studies and screening of nasal drug candidates.
    Vir: Pharmaceutical research. - ISSN 0724-8741 (Vol. 32, issue 2, 2015, str. 665-679)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2015
    Jezik - angleški
    COBISS.SI-ID - 1567580
vir: Pharmaceutical research. - ISSN 0724-8741 (Vol. 32, issue 2, 2015, str. 665-679)
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