کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8476702 1550843 2016 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fine tuning of insulin secretion by release of nerve growth factor from mouse and human islet β-cells
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
Fine tuning of insulin secretion by release of nerve growth factor from mouse and human islet β-cells
چکیده انگلیسی
Nerve growth factor (NGF) is a protein required for neuronal development that also has regulatory functions in non-neuronal cells. Both NGF and its membrane receptors trkA and p75NTR are expressed by islet β-cells. In this study we dynamically profiled NGF secretion from islets and used selective trkA and p75NTR inhibitors to identify the role of endogenous NGF in β-cell stimulus-secretion coupling. NGF secretion from mouse islets was transient and did not accompany the sustained second phase of glucose-induced insulin secretion. Despite being present in human islets, NGF was not released at sufficient levels to be quantified. Inhibition of NGF signaling through trkA and p75NTR increased basal insulin secretion from both human and mouse islets, but impaired glucose-stimulated insulin secretion. These data support a role for islet NGF in fine-tuning insulin secretion, to both maintain a low basal level of insulin output and contribute to the biphasic secretory response to glucose.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular and Cellular Endocrinology - Volume 436, 15 November 2016, Pages 23-32
نویسندگان
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