ArticleBritish journal of pharmacology1999
Maitotoxin-induced nerve growth factor production accompanied by the activation of a voltage-insensitive Ca2+ channel in C6-BU-1 glioma cells.
Article in British journal of pharmacology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 12 citations in OpenAlex.
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4 authors at 2 institutions in 1 country.
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Abstract
1. The aim of the present study was to determine the effects of maitotoxin on nerve growth factor production and the Ca2+ influx in clonal rat glioma cells (C6-BU-1). 2. Maitotoxin (1 - 10 ng ml-1) induced a profound increase in 45Ca2+ influx in an extracellular Ca2+-dependent manner. However, high KCl had no effect at all. These effects were supported by the results from the analysis of intracellular Ca2+ concentration using fura 2. 3. The maitotoxin-induced 45Ca2+ influx was inhibited by inorganic Ca2+ antagonists, such as Mg2+, Mn2+ and Co2+. The inhibitory effect of Co2+ was antagonized by increasing the extracellular Ca2+ concentrations. 4. Maitotoxin (3 ng ml-1) as well as A-23187 (1microM) and dibutyryl cyclic AMP (0.5 mM) caused an acceleration of nerve growth factor (NGF) production in C6-BU-1 cells, as determined by NGF enzyme immunoassay. 5. Reverse transcription polymerase chain reaction (RT - PCR) analysis showed that maitotoxin (10 ng ml-1) enhanced the expression of NGF mRNA, which was abolished by the removal of extracellular Ca2+. A-23187 also accelerated its expression. 6. These results suggest that maitotoxin activates a voltage-insensitive Ca2+ channel and accelerates NGF production mediated through a Ca2+ signalling pathway in C6-BU-1 glioma cells.
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