- 著者
-
Yu-Hsin CHANG
Megumi C. KATOH
Ahmed M. ABDELLATIF
Guli XIAFUKAITI
Abdelaziz ELZEFTAWY
Masami OJIMA
Seiya MIZUNO
Akihiro KUNO
Satoru TAKAHASHI
- 出版者
- Japanese Association for Laboratory Animal Science
- 雑誌
- Experimental Animals (ISSN:13411357)
- 巻号頁・発行日
- pp.19-0105, (Released:2019-12-02)
- 被引用文献数
-
1
Cre/loxP is a site-specific recombination system extensively used to enable the conditional deletion or activation of target genes in a spatial- and/or temporal-specific manner. A number of pancreatic-specific Cre driver mouse lines have been broadly established for studying the development, function and pathology of pancreatic cells. However, only a few models are currently available for glucagon-producing α-cells. Disagreement exists over the role of the MAFB transcription factor in glucagon expression during postnatal life, which might be due to the lack of α-cell-specific Cre driver mice. In the present study, we established a novel Gcg-Cre knock-in mouse line with the Cre transgene expressed under the control of the preproglucagon (Gcg) promoter without disrupting the endogenous Gcg gene expression. Then, we applied this newly developed Gcg-Cre mouse line to generate a new α-cell-specific Mafb conditional knockout mouse model (MafbΔGcg). Not only α-cell number but also glucagon production were significantly decreased in MafbΔGcg mice compared to control littermates, suggesting an indispensable role of MAFB in both α-cell development and function. Taken together, our newly developed Gcg-Cre mouse line, which was successfully utilized to uncover the role of MAFB in α-cells, is a useful tool for genetic manipulation in pancreatic α-cells, providing a new platform for future studies in this field.