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Functions Of The Apical Na+/ K+/ 2cl- Cotransporter 1 In Choroid Plexus Epithelial Cells., Jeannine Marie Crum Gregoriades Jan 2017

Functions Of The Apical Na+/ K+/ 2cl- Cotransporter 1 In Choroid Plexus Epithelial Cells., Jeannine Marie Crum Gregoriades

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Choroid plexus epithelial cells (CPECs) secrete cerebrospinal fluid (CSF) and regulate its electrolyte composition. CPECs express both the Na+/ K+ ATPase and the Na+/ K+/ 2Cl- cotransporter 1 (NKCC1) on their apical membrane (CSF facing), deviating from the typical basolateral membrane location in chloride secretory epithelia. Given this unusual location of NKCC1 and the unknown intracellular Na+ and Cl- concentrations of CPECs, the cotransporter function in these cells is not understood. Further, the direction of net ion and associated water fluxes mediated by NKCC1 under basal physiological conditions in CPECs …

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Functions Of The Apical Na+/ K+/ 2cl- Cotransporter 1 In Choroid Plexus Epithelial Cells, Jeannine Marie Crum Gregoriades Jan 2017

Functions Of The Apical Na+/ K+/ 2cl- Cotransporter 1 In Choroid Plexus Epithelial Cells, Jeannine Marie Crum Gregoriades

Browse all Theses and Dissertations

Choroid plexus epithelial cells (CPECs) secrete cerebrospinal fluid (CSF) and regulate its electrolyte composition. CPECs express both the Na+/ K+ ATPase and the Na+/ K+/ 2Cl- cotransporter 1 (NKCC1) on their apical membrane (CSF facing), deviating from the typical basolateral membrane location in chloride secretory epithelia. Given this unusual location of NKCC1 and the unknown intracellular Na+ and Cl- concentrations of CPECs, the cotransporter function in these cells is not understood. Further, the direction of net ion and associated water fluxes mediated by NKCC1 under basal physiological conditions in CPECs is controversial. Determining the direction of NKCC1- mediated fluxes is …

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