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Establishment and Characterization of a Transgenic Mouse Model for In Vivo Imaging of Bmp4 Expression in the Pancreas
Type-2 diabetes results from the development of insulin resistance and a concomitant impairment of insulin secretion. Bone morphogenetic protein 4 (Bmp4)-Bmp receptor 1A signaling in β cells has recently been reported to be required for insulin production and secretion. In addition, Bmp4 blocks the...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3174230/ https://www.ncbi.nlm.nih.gov/pubmed/21949805 http://dx.doi.org/10.1371/journal.pone.0024956 |
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author | Yasunaga, Mayu Oumi, Nao Osaki, Mitsuhiko Kazuki, Yasuhiro Nakanishi, Tomoko Oshimura, Mitsuo Sato, Kenzo |
author_facet | Yasunaga, Mayu Oumi, Nao Osaki, Mitsuhiko Kazuki, Yasuhiro Nakanishi, Tomoko Oshimura, Mitsuo Sato, Kenzo |
author_sort | Yasunaga, Mayu |
collection | PubMed |
description | Type-2 diabetes results from the development of insulin resistance and a concomitant impairment of insulin secretion. Bone morphogenetic protein 4 (Bmp4)-Bmp receptor 1A signaling in β cells has recently been reported to be required for insulin production and secretion. In addition, Bmp4 blocks the differentiation and promotes the expansion of endocrine progenitor cells. Bmp4 therefore regulates the maintenance of homeostasis in the pancreas. In this study, we constructed a reporter plasmid carrying 7-kb enhancer and promoter region of the Bmp4 gene upstream of the firefly luciferase gene. We used this construct to produce transgenic mice by pro-nuclear microinjection, for subsequent in vivo monitoring of Bmp4 expression. The bioluminescent signal was detected mainly in the pancreas in three independent lines of transgenic mice. Furthermore, the bioluminescent signal was enhanced in association with the autophagy response to 24-h fasting. These results suggest that pancreatic expression of Bmp4 is involved in responding to the physiological environment, including through autophagy. These mouse models represent useful tools for toxicological screening, and for investigating the mechanisms responsible for pancreatic Bmp4 functions in vivo, with relevance to improving our understanding of pancreatic diseases. |
format | Online Article Text |
id | pubmed-3174230 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-31742302011-09-26 Establishment and Characterization of a Transgenic Mouse Model for In Vivo Imaging of Bmp4 Expression in the Pancreas Yasunaga, Mayu Oumi, Nao Osaki, Mitsuhiko Kazuki, Yasuhiro Nakanishi, Tomoko Oshimura, Mitsuo Sato, Kenzo PLoS One Research Article Type-2 diabetes results from the development of insulin resistance and a concomitant impairment of insulin secretion. Bone morphogenetic protein 4 (Bmp4)-Bmp receptor 1A signaling in β cells has recently been reported to be required for insulin production and secretion. In addition, Bmp4 blocks the differentiation and promotes the expansion of endocrine progenitor cells. Bmp4 therefore regulates the maintenance of homeostasis in the pancreas. In this study, we constructed a reporter plasmid carrying 7-kb enhancer and promoter region of the Bmp4 gene upstream of the firefly luciferase gene. We used this construct to produce transgenic mice by pro-nuclear microinjection, for subsequent in vivo monitoring of Bmp4 expression. The bioluminescent signal was detected mainly in the pancreas in three independent lines of transgenic mice. Furthermore, the bioluminescent signal was enhanced in association with the autophagy response to 24-h fasting. These results suggest that pancreatic expression of Bmp4 is involved in responding to the physiological environment, including through autophagy. These mouse models represent useful tools for toxicological screening, and for investigating the mechanisms responsible for pancreatic Bmp4 functions in vivo, with relevance to improving our understanding of pancreatic diseases. Public Library of Science 2011-09-15 /pmc/articles/PMC3174230/ /pubmed/21949805 http://dx.doi.org/10.1371/journal.pone.0024956 Text en Yasunaga et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Yasunaga, Mayu Oumi, Nao Osaki, Mitsuhiko Kazuki, Yasuhiro Nakanishi, Tomoko Oshimura, Mitsuo Sato, Kenzo Establishment and Characterization of a Transgenic Mouse Model for In Vivo Imaging of Bmp4 Expression in the Pancreas |
title | Establishment and Characterization of a Transgenic Mouse Model for In Vivo Imaging of Bmp4 Expression in the Pancreas |
title_full | Establishment and Characterization of a Transgenic Mouse Model for In Vivo Imaging of Bmp4 Expression in the Pancreas |
title_fullStr | Establishment and Characterization of a Transgenic Mouse Model for In Vivo Imaging of Bmp4 Expression in the Pancreas |
title_full_unstemmed | Establishment and Characterization of a Transgenic Mouse Model for In Vivo Imaging of Bmp4 Expression in the Pancreas |
title_short | Establishment and Characterization of a Transgenic Mouse Model for In Vivo Imaging of Bmp4 Expression in the Pancreas |
title_sort | establishment and characterization of a transgenic mouse model for in vivo imaging of bmp4 expression in the pancreas |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3174230/ https://www.ncbi.nlm.nih.gov/pubmed/21949805 http://dx.doi.org/10.1371/journal.pone.0024956 |
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