دورية أكاديمية
Direct visualization of glucagon‐like peptide‐1 secretion by fluorescent fusion proteins
| العنوان: | Direct visualization of glucagon‐like peptide‐1 secretion by fluorescent fusion proteins |
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| المؤلفون: | Atsushi Tsuzuki, Yoichiro Fujioka, Aiko Yoshida, Sayaka Kashiwagi, Maho Amano, Tohru Hira, Akinobu Nakamura, Hideaki Miyoshi, Tatsuya Atsumi, Yusuke Ohba |
| المصدر: | Journal of Diabetes Investigation, Vol 13, Iss 7, Pp 1134-1139 (2022) |
| بيانات النشر: | Wiley, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Diseases of the endocrine glands. Clinical endocrinology |
| مصطلحات موضوعية: | Exocytosis, Glucagon‐like peptide‐1, Total internal reflection fluorescence microscope, Diseases of the endocrine glands. Clinical endocrinology, RC648-665 |
| الوصف: | Abstract Live‐cell imaging with fluorescent proteins (FPs) is a powerful tool for investigating the exocytosis processes of hormones. However, the secretion process of glucagon‐like peptide‐1 (GLP‐1) has not been visualized by FPs, which might be because tagging FPs inhibits GLP‐1 synthesis through the post‐translational processing from proglucagon. Here, we have developed FP‐tagged GLP‐1 by inserting FPs into the middle of GLP‐1 and adding the proglucagon signal peptide. Confocal imaging confirmed that GLP‐1 fused to FPs with high folding efficiency showed granular structure, in which secretory vesicle markers colocalized. The fluorescence intensity of FP in the culture supernatant from cells treated with KCl or forskolin was significantly increased compared with those from untreated cells. Furthermore, FP‐tagged GLP‐1 enables direct visualization of stimulation‐dependent exocytosis of GLP‐1 at a single granule resolution with total internal reflection fluorescence microscopy. FP‐tagged GLP‐1 might facilitate the screening of GLP‐1 secretagogues and the discovery of new antidiabetic drugs. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2040-1124 2040-1116 |
| Relation: | https://doaj.org/toc/2040-1116; https://doaj.org/toc/2040-1124 |
| DOI: | 10.1111/jdi.13800 |
| URL الوصول: | https://doaj.org/article/76e8e4d4c29f48ae81fb2139c0372754 |
| رقم الأكسشن: | edsdoj.76e8e4d4c29f48ae81fb2139c0372754 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20401124 20401116 |
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| DOI: | 10.1111/jdi.13800 |