Using Fura-2AM, a fluorescent Ca 2+ indicator, we have shown for the first time that sigma-1 receptor antagonist - neuroleptic chlorpromazine - significantly inhibits the store-dependent Ca 2+ entry induced by immunomodulators glutoxim as well as molixan and endoplasmic reticulum Са 2+-ATPase inhi-bitors thapsigargin and cyclopiazonic acid in rat peritoneal macrophages. The results suggest the involvement of sigma-1 receptors in the regulation of store-dependent Ca 2+ entry in macrophages.

Original languageEnglish
Pages (from-to)77–83
Number of pages7
JournalBiophysics
Volume66
Issue number1
DOIs
StatePublished - Jan 2021

    Scopus subject areas

  • Biophysics

    Research areas

  • Keywords: sigma-1 receptors, macrophages, store-dependent Ca, store-dependent Ca2+

ID: 76343259