Na+-dependent transporters: The backbone of astroglial homeostatic function

Alexej Verkhratsky, Christine R. Rose

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Astrocytes are the principal homeostatic cells of the central nerves system (CNS) that support the CNS function at all levels of organisation, from molecular to organ. Several fundamental homeostatic functions of astrocytes are mediated through plasmalemmal pumps and transporters; most of which are also regulated by the transplasmalemmal gradient of Na+ ions. Neuronal activity as well as mechanical or chemical stimulation of astrocytes trigger plasmalemmal Na+ fluxes, which in turn generate spatio-temporally organised transient changes in the cytosolic Na+ concentration, which represent the substrate of astroglial Na+ signalling. Astroglial Na+ signals link and coordinate neuronal activity and CNS homeostatic demands with the astroglial homeostatic response.
Original languageEnglish
Article number102136
Pages (from-to)102136
JournalCell calcium
Issue number1
Early online date3 Dec 2019
Publication statusPublished - 1 Jan 2020


  • Astrocyte
  • SLC transporters
  • Na+/K+ pump
  • Na+ signalling
  • neurotransmission


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