Downregulation of Epithelial Sodium Channel (ENaC) by CFTR Co-expressed in Xenopus Oocytes is Independent of Cl− Conductance

@article{Chabot1999DownregulationOE,
  title={Downregulation of Epithelial Sodium Channel (ENaC) by CFTR Co-expressed in Xenopus Oocytes is Independent of Cl− Conductance},
  author={H{\'e}l{\`e}ne Chabot and Marie-isabelle Viv{\`e}s and Andr{\'e} Dagenais and Cz. Grygorczyk and Yves Berthiaume and Ryszard Grygorczyk},
  journal={The Journal of Membrane Biology},
  year={1999},
  volume={169},
  pages={175-188}
}
Defective regulatory interactions between the cystic fibrosis conductance regulator (CFTR) and the epithelial sodium channel (ENaC) have been implicated in the elevated Na+ transport rates across cystic fibrosis airway epithelium. It has recently been proposed that ENaC downregulation by CFTR depends on the ability of CFTR to conduct Cl− into the cell and is negligible when Cl− flows out of the cell. To study the mechanisms of this downregulation we have measured amiloride-inhibitable Na… CONTINUE READING
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