• 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

ASIC3 - "Activation and Inhibition of human ASIC3 Channels on Nanion’s SyncroPatch 384PE"

icon sp96   SyncroPatch 384PE (a predecessor model of SyncroPatch 384i) application note:   logo pdf   (2.2 MB)
Cells were kindly provided by Millipore.  


Acid-sensing ion channels (ASICs) are ligand-gated ion channels activated by protons. They are members of the sodium-selective cation channels belonging to the epithelial sodium channel/degenerin (ENaC/DEG) family. ASICs are highly sensitive to extracellular acidosis and are permeable to cations, predominantly Na+. So far, 6 different ASIC subunits have been identified encoded by 4 genes. They are found expressed throughout the CNS and PNS and have a proposed role in nociception and pain, and other neurological diseases such as ischaemia and inflammation. The ASIC3 channel was first identified in the late 1990’s. It was found to be localized to primary afferent nociceptive fibers innervating the skin, muscles, joints and viscera, in agreement with a role in pain perception. Furthermore, ASIC3 is expressed in higher amounts in nociceptive neurons innervating muscle (~ 50%) compared to skin (~ 10%), which indicates that ASIC3 may play an important role in detecting muscle acidosis. Here we present high quality data at a high throughput collected on the SyncroPatch 384PE showing activation and inhibition of ASIC3 expressed in HEK cells. The pH which elicited a halfmaximal response was in good agreement with the literature. The IC50 for block of the ASIC3 current by amiloride, a known blocker of ASIC and ENaC channels, was also in good agreement with the literature. Success rates of over 80% for completed experiments were recorded.

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