• Publications
  • Influence
A caffeine-sensitive Ca2+ store modulates K+-evoked secretion in chromaffin cells.
TLDR
Functional data are compatible with the view that the degree of filling of a caffeine-sensitive intracellular Ca2+ store might regulate the extent of exocytosis, and the depression of secretion by caffeine does not seem to be associated with inhibition of extracellular Ca 2+ entry through Ca2- channels.
Q-type Ca2+ channels are located closer to secretory sites than L-type channels: functional evidence in chromaffin cells
TLDR
The results suggest that Q-type Ca2+ channels are coupled more tightly to exocytotic active sites, as compared to L-type channels.
Otilonium: a potent blocker of neuronal nicotinic ACh receptors in bovine chromaffin cells
TLDR
Otilonium is a potent blocker of nicotinic AChR‐mediated responses and blocked various subtypes of neuronal voltage‐dependent Ca2+ channels at a considerably lower potency than previously reported.
Dotarizine versus flunarizine as calcium antagonists in chromaffin cells
TLDR
The results suggest that dotarizine behaves as a Ca2+ antagonist in bovine chromaffin cells and exhibits a potency similar to flunarIZine in blocking Ca2- entry, Ca2+, channels, Cai2+ signals and secretion.
Drastic facilitation by α‐latrotoxin of bovine chromaffin cell exocytosis without measurable enhancement of Ca2+ entry or [Ca2+]i
TLDR
It is proposed that the secretory response to brief periods of Ca2+ reintroductions is triggered by local subplasmalemmal Ca2-1 tranMents, produced by the Na+‐Ca2+ exchanger of the plasma membrane working in the reverse mode.
Analogies and differences between ω-conotoxins MVIIC and MVIID: binding sites and functions in bovine chromaffin cells
TLDR
The previously established conclusion that Q-type Ca2+ channels that contribute to the regulation of secretion and are sensitive to ω-conotoxins MVIIC and MVIID are present in bovine chromaffin cells is strengthened.
Autocrine/paracrine modulation of calcium channels in bovine chromaffin cells
TLDR
These data are compatible with the idea that the secretory activity of adrenal medullary chromaffin cells ”in situ” controls the activity of their Ca2+ channels through autocrine/paracrine mechanisms.
...
...