Capacitative Ca2+ influx in the neural retina of chick embryo.

@article{Sakaki1997CapacitativeCI,
  title={Capacitative Ca2+ influx in the neural retina of chick embryo.},
  author={Y. Sakaki and M. Sugioka and Y. Fukuda and M. Yamashita},
  journal={Journal of neurobiology},
  year={1997},
  volume={32 1},
  pages={
          62-8
        }
}
Depletion of intracellular Ca2+ stores induces a capacitative Ca2+ influx in non-neural cells. It has been unknown whether the capacitative Ca2+ influx occurs in the cells of nervous systems. We found the capacitative Ca2+ influx in the neural retina of early embryonic chick with Fura-2 fluorescence measurements. A Ca(2+)-free medium containing thapsigargin (500 nM), an inhibitor of Ca(2+)-ATPase of intracellular Ca2+ stores, was applied to the neural retina of embryonic day 3 (E3) chick. A… Expand
Regulation of capacitative Ca2+ entry by tyrosine phosphorylation in the neural retina of chick embryo
TLDR
Results suggested that tyrosine phosphorylation was involved in the activation of capacitative Ca2+ entry, which was inhibited by SK&F 96365, Zn2+, Ni2+, Ni2+ and genistein and vanadate, a protein-phosphotyrosinesine phosphatase inhibitor. Expand
Ca2+ mobilization and capacitative Ca2+ entry regulate DNA synthesis in cultured chick retinal neuroepithelial cells
TLDR
The results suggest the involvement of Ca 2+ mobilization and capacitative Ca2+ entry in the regulation of DNA synthesis in the developing neural retina. Expand
Development of glutamate-induced intracellular Ca2+ rise in the embryonic chick retina.
TLDR
The study shows that the Ca2+ rise to glutamate develops with the decline of the mitotic activity of the retinal cells and is transiently enhanced during the period of cell death in the embryonic chick retina. Expand
Developmental changes in capacitative Ca2+ entry in mouse mammary epithelial cells
TLDR
Findings indicate that in contrast to Ca2+ release, a close correlation exists between capacitative Ca2+, entry and pregnancy‐induced development in mammary epithelial cells. Expand
Spatial and temporal aspects of Ca2+ signaling mediated by P2Y receptors in cultured rat hippocampal astrocytes.
TLDR
The hierarchical Ca2+ responses to ATP were observed in hippocampal astrocytes, i.e., puffs, globalCa2+ release by InsP3, and CCE in response to depletion of InsP 3-sensitive Ca2-sensitive stores. Expand
Zn2+ increases resting cytosolic Ca2+ levels and abolishes capacitative Ca2+ entry induced by ATP in MDCK cells
TLDR
Pretreatment with 100 µM Zn2+ for 220 s did not reduce the [Ca2+]i rise induced by the endoplasmic reticulum Ca2+ pump inhibitor, thapsigargin, suggesting that Ca 2+ release from the ER played a minor role in the Zn 2+-induced [Ca 2+] i rise. Expand
In vitro changes in capacitative Ca2+ entry in neuroblastoma X glioma NG108-15 cells
TLDR
The results suggested that the capacitative Ca2+ entry occurred more intensely at the proliferation state than at the neuronally differentiated state. Expand
Calcium signaling to nucleus via store-operated system during cell cycle in retinal neuroepithelium
TLDR
The results suggest that the Ca(2+) signaling to nucleus via the store-operated system including the ERs in the outer process is crucial for the cell cycle progression in the retinal neuroepithelium. Expand
Traumatic Injury of Cortical Neurons Causes Changes in Intracellular Calcium Stores and Capacitative Calcium Influx*
TLDR
The results suggest that capacitative Ca2+ influx may be mediated by both conformational coupling and a diffusible messenger synthesized by the combined action of cytosolic PLA2 and P450. Expand
Developmental changes in cell calcium homeostasis during neurogenesis of the embryonic rat cerebral cortex.
TLDR
Ca(2+) imaging of individually immunoidentified cells acutely recovered in culture confirmed that precursors differentiate into neurons which stereotypically exhibit Ca(2+)(o) entry at the level of the membrane with increased Ca( 2+)(i) release mechanisms on Ca(3+)( i) stores, Na(+)-Ca( 2+) exchange activity and expression of voltage-dependent Ca(1+) channels. Expand
...
1
2
3
...

References

SHOWING 1-10 OF 20 REFERENCES
Muscarinic acetylcholine responses in the early embryonic chick retina.
TLDR
The muscarinic Ca2+ mobilization found in the early embryonic chick retina may be regarded as a part of the "embryonic mus carinic system" proposed by Drew's group, which appears transiently and ubiquitously at early embryonic stages in relation to organogenesis. Expand
Ca2+ responses to ATP via purinoceptors in the early embryonic chick retina.
TLDR
The results suggest that the Ca2+ mobilization by ATP via P2U purinoceptors is characteristic of early embryonic retinal cells. Expand
Calcium channels and GABA receptors in the early embryonic chick retina.
TLDR
It is concluded that L-type calcium channels and GABAA receptors are already expressed before differentiation of retinal cells and synapse formation in the chick retina, and GABA might act as a trophic factor by activating L- type calcium channels via GAB AA receptors during the early period ofretinal neurogenesis. Expand
Intracellular Ca2+ pool content is linked to control of cell growth.
TLDR
The precise relationship between Ca2+ pump blockade and growth arrest indicates that Ca2- pool emptying maintains cells in a G0-like quiescent state; upon refilling of pools, normal progression into the cell cycle is resumed. Expand
Mitogen-regulated Ca2+ current of T lymphocytes is activated by depletion of intracellular Ca2+ stores.
  • A. Zweifach, R. Lewis
  • Chemistry, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 1993
TLDR
This work has used the perforated-patch recording technique to compare the biophysical properties of Ca2+ currents activated by T-cell receptor stimulation and by thapsigargin, a Ca(2+)-ATPase inhibitor that depletes intracellular stores without generating IP3. Expand
Persistent intracellular calcium pool depletion by thapsigargin and its influence on cell growth.
TLDR
It is suggested that emptying of Ca2+ from intracellular thapsigargin-sensitive Ca(2+)-pumping pools induces profound alteration of cell proliferation. Expand
Thapsigargin, a tumor promoter, discharges intracellular Ca2+ stores by specific inhibition of the endoplasmic reticulum Ca2(+)-ATPase.
TLDR
The results suggest that thapsigargin increases the concentration of cytosolic free Ca2+ in sensitive cells by an acute and highly specific arrest of the endoplasmic reticulum Ca 2+ pump, followed by a rapid Ca2+. Expand
Refilling the inositol 1,4,5-trisphosphate-sensitive Ca2+ store in neuroblastoma x glioma hybrid NG108-15 cells.
  • T. Lo, S. Thayer
  • Chemistry, Medicine
  • The American journal of physiology
  • 1993
TLDR
It is concluded that after Ca2+ mobilization, the IP3-sensitive Ca 2+ store in NG108-15 cells is refilled with cytoplasmic Ca2- via a thapsigargin- sensitive Ca(2+)-Mg(2-)-ATPase, which is replenished by a persistent leak of Ca2 + across the plasma membrane. Expand
Calcium current activated by muscarinic receptors and thapsigargin in neuronal cells
TLDR
The activation of muscarinic receptors in N1E-115 neuroblastoma cells elicits a voltage-independent calcium current that is observed in cells heavily loaded with BAPTA indicating that the calcium entry pathway is not directly gated by calcium. Expand
The role of calcium, pH, and cell proliferation in the programmed (apoptotic) death of androgen-independent prostatic cancer cells induced by thapsigargin.
TLDR
It was demonstrated that TG induces programmed cell death in androgen-independent prostatic cancer cells in a dose-dependent manner and that this death does not require proliferation or intracellular acidification but is critically dependent upon an adequate, sustained elevation in Cai. Expand
...
1
2
...