• SyncroPatch 384/768i

    APC with highest throughput on the market
  • SyncroPatch 384/768i

    384 cells in parallel => upgradable to 768
  • SyncroPatch 384/768i

    True HTS AND Gigaohm seals
  • SyncroPatch 384/768i

    Analysis Software even more powerful than before
  • SyncroPatch 384/768i

    Assay flexibility via high tech

NaV1.7 - "Characterization of hNaV1.7 on Nanion's SyncroPatch 384PE"

icon sp96   SyncroPatch 384PE (a predecessor model of SyncroPatch 384i) application note   logo pdf   (0.7 MB)
Cells were kindly provided by Anaxon.

Summary:

The NaV1.7 gene (SCN9A) encodes a voltage-gated sodium (NaV) channel, primarily expressed in the peripheral nervous system. It has been isolated from rat dorsal root ganglion (DRG) neurons, human medullary thyroid cancer cells (hNE-Na) and PC12 cells. Different NaV channels play a key role in modulation of action potentials in the central and peripheral nervous systems. In particular, the fast upstroke of the action potential is mediated by NaV channels. NaV channels are in part characterized by their TTX-sensitivity (TTX-resistant [TTXr], TTX-sensitive [TTXs]). NaV1.7 is a TTXs channel and is sensitive to TTX in the nanomolar range. The role of hNaV1.7 has yet to be fully elucidated but is proposed to play an important part in nociception and pain sensing. NaV1.7 has been implicated to play a role in disease pain states, in particular inflammatory pain and hypersensitivity to heat following burn injury. Common to many of the voltage-gated ion channels, a number of compounds exhibit both state- and use-dependence. For this reason, it is important to be able to reliably measure the effects of compounds using different voltage protocols to investigate state and use-dependency. In this Application Note we present data using the SyncroPatch 384PE characterizing CHO cells stably expressing hNaV1.7. The current-voltage relationship and the state- and use-dependence effects of the sodium channel blocker, tetracaine, are shown.

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