Regulation of the MDCK Cell Tight Junction

@article{Kovbasnjuk1998RegulationOT,
  title={Regulation of the MDCK Cell Tight Junction},
  author={O. N. Kovbasnjuk and Ursula M Szmulowicz and Kenneth R. Spring},
  journal={The Journal of Membrane Biology},
  year={1998},
  volume={161},
  pages={93-104}
}
The sodium flux across individual tight junctions (TJ) of low-resistance MDCK cell monolayers grown on glass coverslips was determined as a measure of paracellular permeability. Increases in perfusate glucose concentration from 5 to 25 mm decreased tight junction Na permeability. This permeability decrease was not specific as nonmetabolizable analogues of glucose caused similar diminutions in TJ Na permeability. Stimulation of protein kinase A increased TJ Na permeability, and inhibition of… CONTINUE READING

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