Skip to main content

Efflux of potassium ion is an important reason of HL-60 cells apoptosis induced by tachyplesin

Buy Article:

$51.00 plus tax (Refund Policy)



Aim: To investigate the role of intercellular potassium in tachyplesin-induced HL-60 cells apoptosis. Methods: The concentration of intercellular potassium, cell volume and mitochondrial membrane potential were examined by flow cytometry. Results: The concentration of intercellular potassium reduced in a time-dependent manner in tachyplesin-treated HL-60 cells. In addition, the loss of mitochondrial membrane potential was tightly coupled with the shrinkage of cell volume. Different caspase inhibitors protected against DNA degradation but did not prevent the loss of HL-60 cell viability induced by tachyplesin. Ba2+, which was a kind of blocker of volume-regulatory K+ channels, increased the viability of tachyplesin-treated HL-60 cells and maintained mitochondrial membrane potential and cell volume. Conclusion: Efflux of K+ was an important reason for apoptosis in tachyplesin-treated HL-60 cells. Efflux of K+ affected the viability of tachyplesin-treated HL-60 cells independent of the process of caspase activation.

Keywords: HL-60 cell; horseshoe crab; intracellular potassium; mitochondrial membrane potential; tachyplesin

Document Type: Research Article


Affiliations: 1: Affiliated Hospital of Guangdong Medical College, Zhanjiang 524023, China 2: Institute of Biochemistry and Molecular Biology, Guangdong Medical College, Zhanjiang 524023, China

Publication date: 2006-10-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more