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首页> 外文期刊>Pancreatology: official journal of the International Association of Pancreatology (IAP) ... [et al.] >Inhibitory effects of human and porcine alpha-amylase on CCK-8-stimulated lipase secretion of isolated rat pancreatic acini.
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Inhibitory effects of human and porcine alpha-amylase on CCK-8-stimulated lipase secretion of isolated rat pancreatic acini.

机译:人和猪α-淀粉酶对CCK-8刺激的大鼠胰腺腺泡脂酶分泌的抑制作用。

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摘要

Previously we have demonstrated inhibitory effects of the plant lectin wheat germ agglutinin (WGA) on (125)I-CCK-8 binding to pancreatic AR42J cells as well as on CCK-8-stimulated Ca(2+) release and alpha-amylase secretion of rat pancreatic acini or acinar cells. Therefore, it is entirely conceivable that alpha-amylase having several lectin-like carbohydrate recognition domains can modulate the CCK-8 stimulated lipase secretion. Human alpha-amylase, purified from pancreatic juice by affinity chromatography to homogeneity, and commercial porcine pancreatic alpha-amylase inhibit CCK-8-stimulated lipase secretion of rat pancreatic acini in a concentration-dependent manner. Acarbose, a specific inhibitor of alpha-amylase, was without effect on CCK-8-induced cellular lipase secretion. The data presented here provide evidence for a regulatory function of alpha-amylase in CCK-8-stimulated pancreatic secretion.
机译:以前我们已经证明了植物凝集素小麦胚芽凝集素(WGA)对(125)I-CCK-8与胰腺AR42J细胞的结合以及CCK-8刺激的Ca(2+)释放和α-淀粉酶分泌的抑制作用大鼠胰腺腺泡或腺泡细胞。因此,完全可以想象具有几个凝集素样碳水化合物识别结构域的α-淀粉酶可以调节CCK-8刺激的脂肪酶分泌。通过亲和层析从胰液中纯化到均匀的人α-淀粉酶和商业猪胰α-淀粉酶以浓度依赖的方式抑制CCK-8刺激的大鼠胰腺腺泡脂酶的分泌。阿卡波糖是α-淀粉酶的特异性抑制剂,对CCK-8诱导的细胞脂肪酶分泌没有影响。此处提供的数据为α-淀粉酶在CCK-8刺激的胰腺分泌中的调节功能提供了证据。

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