Crossref journal-article
Wiley
Journal of Neurochemistry (311)
Abstract

AbstractInositol 1,4,5‐trisphosphate (InsP3) receptor immunoreactivity in SH‐SY5 Y human neuroblastoma cells was monitored with a monoclonal antibody raised against the mouse cerebellar InsP3 receptor. Recognition of a protein corresponding to the InsP3 receptor (molecular mass, ∼275 kDa) was inhibited markedly following exposure of cells to 0.1 mM carbachol. This effect was half‐maximal and maximal at ∼2 and ∼6 h, respectively; was blocked by atropine; but was not mimicked by thapsigargin, K+, or phorbol 12‐myristate 13‐acetate. However, the decrease in immunoreactivity following exposure of cells to carbachol for 5 h was blocked if the extracellular Ca2+ concentration was reduced from 1.3 mM to 200 nM. This manipulation also reduced markedly carbachol‐induced increases in InsP3 concentration at 5 h. These data indicate that chronic muscarinic stimulation of phosphoinositide hydrolysis reduces InsP3 receptor concentration in SH‐SY5 Y cells, perhaps via a mechanism that involves prolonged elevation of InsP3 levels.

Bibliography

Wojcikiewicz, R. J. H., Nakade, S., Mikoshiba, K., & Nahorski, S. R. (1992). Inositol 1,4,5‐Trisphosphate Receptor Immunoreactivity in SH‐SY5Y Human Neuroblastoma Cells Is Reduced by Chronic Muscarinic Receptor Activation. Journal of Neurochemistry, 59(1), 383–386. Portico.

Authors 4
  1. Richard J. H. Wojcikiewicz (first)
  2. Shinji Nakade (additional)
  3. Katsuhiko Mikoshiba (additional)
  4. Stefan R. Nahorski (additional)
References 22 Referenced 26
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Dates
Type When
Created 18 years, 11 months ago (Oct. 5, 2006, 11:06 p.m.)
Deposited 1 year, 10 months ago (Oct. 23, 2023, 2:57 p.m.)
Indexed 1 year, 7 months ago (Feb. 5, 2024, 8:07 a.m.)
Issued 33 years, 2 months ago (July 1, 1992)
Published 33 years, 2 months ago (July 1, 1992)
Published Online 18 years, 11 months ago (Oct. 5, 2006)
Published Print 33 years, 2 months ago (July 1, 1992)
Funders 0

None

@article{Wojcikiewicz_1992, title={Inositol 1,4,5‐Trisphosphate Receptor Immunoreactivity in SH‐SY5Y Human Neuroblastoma Cells Is Reduced by Chronic Muscarinic Receptor Activation}, volume={59}, ISSN={1471-4159}, url={http://dx.doi.org/10.1111/j.1471-4159.1992.tb08916.x}, DOI={10.1111/j.1471-4159.1992.tb08916.x}, number={1}, journal={Journal of Neurochemistry}, publisher={Wiley}, author={Wojcikiewicz, Richard J. H. and Nakade, Shinji and Mikoshiba, Katsuhiko and Nahorski, Stefan R.}, year={1992}, month=jul, pages={383–386} }