Calmidazolium inhibits muscarinic receptor-mediated PLC activation in SH-SY5Y cells
(1995) In NeuroReport 6(9). p.1333-1337- Abstract
- The aim of this study was to investigate the effect of a calmodulin antagonist, calmidazolium, on the muscarinic receptor-mediated increase in inositol 1,4,5-trisphosphate [I(1,4,5)P3] in SH-SY5Y cells. Exposure to 10 microM calmidazolium suppressed the initial I(1,4,5)P3 peak increase (IC50 1 microM) whereas the steady-state was less affected. Furthermore, calmidazolium displayed non-competitive antagonistic properties of [3H]quinuclidinyl benzylate binding to intact SH-SY5Y cells and to membranes from these cells. These effects were also obtained with another calmodulin inhibitor, trifluoperazine (10 microM). These results demonstrate that novel finding that the calmodulin inhibitors calmidazolium and trifluoperazine act as... (More)
- The aim of this study was to investigate the effect of a calmodulin antagonist, calmidazolium, on the muscarinic receptor-mediated increase in inositol 1,4,5-trisphosphate [I(1,4,5)P3] in SH-SY5Y cells. Exposure to 10 microM calmidazolium suppressed the initial I(1,4,5)P3 peak increase (IC50 1 microM) whereas the steady-state was less affected. Furthermore, calmidazolium displayed non-competitive antagonistic properties of [3H]quinuclidinyl benzylate binding to intact SH-SY5Y cells and to membranes from these cells. These effects were also obtained with another calmodulin inhibitor, trifluoperazine (10 microM). These results demonstrate that novel finding that the calmodulin inhibitors calmidazolium and trifluoperazine act as non-competitive muscarinic antagonists in SH-SY5Y cells and inhibit muscarinic receptor-stimulated phospholipase C activation in these cells. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1108723
- author
- Larsson, Christer LU and Alling, Christer LU
- organization
- publishing date
- 1995
- type
- Contribution to journal
- publication status
- published
- subject
- in
- NeuroReport
- volume
- 6
- issue
- 9
- pages
- 1333 - 1337
- publisher
- Lippincott Williams & Wilkins
- external identifiers
-
- pmid:7669998
- scopus:0029059237
- ISSN
- 1473-558X
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Tumour Cell Biology (013017530), Division of Clinical Chemistry and Pharmacology (013250300)
- id
- 52a772d0-fa21-4467-a058-caad72a7ed53 (old id 1108723)
- date added to LUP
- 2016-04-01 12:19:09
- date last changed
- 2021-01-03 07:59:05
@article{52a772d0-fa21-4467-a058-caad72a7ed53, abstract = {{The aim of this study was to investigate the effect of a calmodulin antagonist, calmidazolium, on the muscarinic receptor-mediated increase in inositol 1,4,5-trisphosphate [I(1,4,5)P3] in SH-SY5Y cells. Exposure to 10 microM calmidazolium suppressed the initial I(1,4,5)P3 peak increase (IC50 1 microM) whereas the steady-state was less affected. Furthermore, calmidazolium displayed non-competitive antagonistic properties of [3H]quinuclidinyl benzylate binding to intact SH-SY5Y cells and to membranes from these cells. These effects were also obtained with another calmodulin inhibitor, trifluoperazine (10 microM). These results demonstrate that novel finding that the calmodulin inhibitors calmidazolium and trifluoperazine act as non-competitive muscarinic antagonists in SH-SY5Y cells and inhibit muscarinic receptor-stimulated phospholipase C activation in these cells.}}, author = {{Larsson, Christer and Alling, Christer}}, issn = {{1473-558X}}, language = {{eng}}, number = {{9}}, pages = {{1333--1337}}, publisher = {{Lippincott Williams & Wilkins}}, series = {{NeuroReport}}, title = {{Calmidazolium inhibits muscarinic receptor-mediated PLC activation in SH-SY5Y cells}}, volume = {{6}}, year = {{1995}}, }