Mechanisms of functional expression of pancreatic islets as an integrated system and its failure
胰岛作为一个完整系统的功能表达机制及其失败
基本信息
- 批准号:21249057
- 负责人:
- 金额:$ 29.37万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (A)
- 财政年份:2009
- 资助国家:日本
- 起止时间:2009 至 2011
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We have newly established pancreatic b-cell lines(named MIN6-K). In monolayer culture, MIN6-K8 cells respond to both glucose stimulation and cAMP-increasing agents such as the incretin hormones, while MIN6-K20 cells respond to glucose stimulation, but not to incretins. We found that the formation of three-dimensional structure of MIN6-K20 cells(pseudoislets) drastically induces cAMP/incretin responsiveness to a level similar to that of normal pancreatic islets. We also found that formation of three-dimensional structure is required for transdifferentiation of pancreatic acinar cells to b-cells in vitro. These findings indicate that three-dimensional structure of pancreatic b-cells is critical in development of normal regulation of insulin secretion as an integrative system.
我们新建立了胰腺b细胞系(命名为MIN6-K)。在单层培养中,MIN6-K8 细胞对葡萄糖刺激和 cAMP 增加剂(例如肠降血糖素激素)有反应,而 MIN6-K20 细胞对葡萄糖刺激有反应,但对肠降血糖素没有反应。我们发现,MIN6-K20 细胞(伪胰岛)三维结构的形成可显着诱导 cAMP/肠促胰岛素反应性达到与正常胰岛相似的水平。我们还发现,胰腺腺泡细胞在体外转分化为b细胞需要形成三维结构。这些发现表明,胰腺 b 细胞的三维结构对于胰岛素分泌作为一个综合系统的正常调节的发展至关重要。
项目成果
期刊论文数量(83)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Establishment of new clonal pancreatic β-cell lines (MIN6-K) useful for study of incretin/cAMP signaling.
建立新的克隆胰腺 β 细胞系 (MIN6-K),可用于肠促胰岛素/cAMP 信号传导的研究。
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:3.2
- 作者:Iwasaki M;et al.
- 通讯作者:et al.
Tracing phenotypic reversibility of pancreatic b-cells in vitro
体外追踪胰腺 b 细胞的表型可逆性
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:3.2
- 作者:Minami K;Miyawaki K;Hara M;Yamada S;Seino S
- 通讯作者:Seino S
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{{ truncateString('SEINO Susumu', 18)}}的其他基金
Elucidation of pancreatic beta-cell function by metabolomics and its clinical application
代谢组学阐明胰腺β细胞功能及其临床应用
- 批准号:
24229007 - 财政年份:2012
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for Scientific Research (S)
Formation of the integrated insulin secretion system and its failure
完整的胰岛素分泌系统的形成及其失败
- 批准号:
15002002 - 财政年份:2003
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for Specially Promoted Research
Comprehensive Analysis of Genetic Factors in Diabetes Mellitus
糖尿病遗传因素综合分析
- 批准号:
10NP0201 - 财政年份:1998
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for Creative Scientific Research
A Screening System for Development of Novel Insulin Secretagogues
新型胰岛素促分泌剂开发的筛选系统
- 批准号:
09557075 - 财政年份:1997
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Construction of Molecular Map of Pancreatic beta-cell.
胰腺β细胞分子图谱的构建。
- 批准号:
08044248 - 财政年份:1996
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for international Scientific Research
Development of super-sensitive assay for hormone secretion from single cells
单细胞激素分泌超灵敏检测方法的开发
- 批准号:
07557070 - 财政年份:1995
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Molecular Biology and Genetics of Ion Channels in beta-cells : their roles in diabetes mellitus.
β 细胞离子通道的分子生物学和遗传学:它们在糖尿病中的作用。
- 批准号:
06044036 - 财政年份:1994
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for international Scientific Research
Studies on the genes susceptible to non-insulin dependent diabetes mellitus in Japanese.
日本人非胰岛素依赖型糖尿病易感基因的研究。
- 批准号:
06404036 - 财政年份:1994
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Development of various somatostatin analogs for the treatment and diagnosis of tumors utilizing somatostatin receptor genes
利用生长抑素受体基因开发用于治疗和诊断肿瘤的各种生长抑素类似物
- 批准号:
04557131 - 财政年份:1992
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
Molecular Biological Studies of Calcium Signaling in Insulin Secretion ; their implication for the development of diabetes mellitus
胰岛素分泌中钙信号传导的分子生物学研究;
- 批准号:
04454555 - 财政年份:1992
- 资助金额:
$ 29.37万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
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- 批准号:
26461352 - 财政年份:2014
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- 批准号:
23591330 - 财政年份:2011
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Src对胰腺β细胞的作用及其与GPCR信号的关系
- 批准号:
23791028 - 财政年份:2011
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胰腺β细胞中糖尿病易感基因KCNQ1的功能分析
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22790876 - 财政年份:2010
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Grant-in-Aid for Young Scientists (B)