KN93 but Not KN92 Reduces Maximum Upstroke Velocity of Cardiac Action Potential

Medical University of Graz
Division of Cardiology
Lab Technician

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Company:

Tocris Bioscience

Product Name:

KN 92

Catalog Number:

4130/1

CaMKII regulates cardiac ion channels contributing action potential. To understand this process in detail we use KN93, a CaMKII inhibitor, and KN92, an inactive homolog of KN93.

Experimental Design and Results Summary

Application

Cell culture

Starting Material

Guinea pig ventricular cardiomyocytes

Protocol Overview

Guinea pig ventricular cardiomyocytes were treated (12-16 h) with KN93 (5 µM), KN92 (5 µM) or Ranolazine (10 µM). Cells were patched and stimulated at a 1 Hz frequency to record action potential.

Tips

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Results Summary

Maximum upstroke velocity was significantly was reduced by KN93 while KN92 was ineffective.

DOI or PMID #

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Additional Notes

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Summary

The Good

Worked as expected

The Bad

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The Bottom Line

KN92 does not have any effect on cardiac action potential upstroke velocity.

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