Increase in Lysophosphatidylethanolamine in the Cell Membrane upon the Regulated Exocytosis of Pancreatic Acinar AR42J Cells
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概要
- 論文の詳細を見る
A specific cytosolic phospholipase A2 inhibitor, arachidonyl trifluoromethyl ketone (AACOCF_3), was found to inhibit the regulated exocytosis of pancreatic acinar AR42J cells. When AR42J cells were stimulated with cholecystokinin octapeptide (CCK-8), the regulated exocytosis monitored by amylase release was rapidly activated and increased by 2.5-fold during one hour. After AR42J cells were treated with AACOCF_3, amylase release by CCK-8 remained at the basal level. Thus, changes in the composition of membrane phospholipids before and after stimulation were investigated. Within 1 min after CCK-8 stimulation, lysophosphatidylethanolamine (lysoPE) in the cellular membranes of AR42J was increased while lysophosphatidylcholine stayed unchanged. In the presence of AACOCF_3, lysoPE was not increased by CCK-8. Those results indicate that the increment of lysoPE is linked to the regulated exocytosis.
- 社団法人日本農芸化学会の論文
- 1997-01-23
著者
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KITO Makoto
Research Institute for Food Science, Kyoto University
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FUKUOKA Shin-Ichi
Research Institute for Food Science, Kyoto University
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Kito Makoto
Research Institute For Food Science Kyoto University
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Kito Makoto
Research Institute For Food Science Kyoto University:to Whom Correspondence Should Be Addressed
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Ikeda Yoshiki
Research Institute For Food Science Kyoto University
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Fukuoka Shin-ichi
Research Institute For Food Science Kyoto University
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