EVIDENCE FOR SELECTIVE RELEASE OF RODENT ISLET AMYLOID POLYPEPTIDE THROUGH THE CONSTITUTIVE SECRETORY PATHWAY

被引:37
作者
KAHN, SE [1 ]
VERCHERE, CB [1 ]
DALESSIO, DA [1 ]
COOK, DL [1 ]
FUJIMOTO, WY [1 ]
机构
[1] UNIV WASHINGTON,DEPT MED,DIV METAB ENDOCRINOL & NUTR,SEATTLE,WA 98195
关键词
INSULIN; SECRETION; PANCREAS; AMYLOID; INSULINOMAS;
D O I
10.1007/BF02743276
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
To determine the potential for differential release of islet amyloid polypeptide and insulin, we performed studies in Tat islet monolayer cultures under conditions known to impair regulated beta-cell secretion. In inhibiting concentrations of epinephrine or the absence of calcium, islet amyloid polypeptide was secreted through a constitutive pathway while insulin was not. These findings suggest a mechanism for persistent islet amyloid polypeptide secretion and amyloid accumulation when regulated insulin release is impaired as in Type 2 (non-insulin-dependent) diabetes mellitus and insulinomas.
引用
收藏
页码:570 / 573
页数:4
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