Pluronic F-127 affects the regulation of cytoplasmic Ca2+ in neuronal cells

Jhon Jairo Sutachan, José V. Montoya G, Fang Xu, Daniel Chen, Thomas J.J. Blanck, Esperanza Recio-Pinto

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Fura-2 is one of the most widely used cytoplasmic Ca2+ ([Ca 2+]cyt) sensors. In studies using isolated dorsal root ganglion (DRG) neurons, the loading of Fura-2 AM is often facilitated by the use of pluronic F-127. In preliminary studies, we detected that the use of pluronic F-127 appeared to be affecting the depolarization-evoked [Ca2+] cyt transient in DRG neurons. To determine whether this was the case, we conducted a systematic study. Adult rat DRG neurons were cultured, and their response to 50 mM KCl was measured in sister cultured cells (isolated on the same day) that were loaded with 5 μM Fura-2AM in the absence or in the presence of 0.02% pluronic F-127. In the absence of pluronic F-127, the KCl-evoked [Ca2+]cyt transient changed with time, being wider on day 1 than on day 2 after plating. On day 2, the KCl-evoked [Ca 2+]cyt transient was wider in neurons Fura-2 loaded in the presence of pluronic F-127. These results indicate that pluronic F-127 significantly alters depolarization-evoked [Ca2+]cyt transients, which may reflect alteration in regulation of [Ca2+] cyt in neuronal cells.

Original languageEnglish
Pages (from-to)131-137
Number of pages7
JournalBrain Research
Volume1068
Issue number1
DOIs
StatePublished - 12 Jan 2006
Externally publishedYes

Keywords

  • Cytoplasmic Ca
  • Dorsal root ganglia neuron
  • Fura-2AM
  • Pluronic F-127
  • Pluronic acid

Fingerprint

Dive into the research topics of 'Pluronic F-127 affects the regulation of cytoplasmic Ca2+ in neuronal cells'. Together they form a unique fingerprint.

Cite this