Observing Islet Function and Islet-Immune Cell Interactions in Live Pancreatic Tissue Slices.

Observing Islet Function and Islet-Immune Cell Interactions in Live Pancreatic Tissue Slices.
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DOI:
10.3791/62207
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发表时间:
2021-04-12
期刊:
Journal of visualized experiments : JoVE
影响因子:
--
通讯作者:
Phelps EA
Phelps EA
中科院分区:
其他
文献类型:
--
作者:
Huber MK;Drotar DM;Hiller H;Beery ML;Joseph P;Kusmartseva I;Speier S;Atkinson MA;Mathews CE;Phelps EA

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活体胰腺组织切片允许在完整的胰岛微环境中研究胰岛生理和功能。切片是用琼脂糖包埋的活体人和小鼠胰腺组织制备的,并用振动刀切割。这种方法允许组织维持活力和功能,除了保留潜在的病理,如1型(T1D)和2型糖尿病(T2D)。切片法通过维持胰腺内分泌和外分泌组织的复杂结构和各种细胞间相互作用,为胰腺的研究提供了新的方向。本方案演示了如何在胰腺切片内对活的内源性免疫细胞进行染色和延时显微镜观察,并对胰岛生理学进行评估。此外,这种方法可以改进,以识别免疫细胞群体特异性胰岛细胞抗原使用主要组织相容性复合物-多聚试剂。
Live pancreatic tissue slices allow for the study of islet physiology and function in the context of an intact islet microenvironment. Slices are prepared from live human and mouse pancreatic tissue embedded in agarose and cut using a vibratome. This method allows for the tissue to maintain viability and function in addition to preserving underlying pathologies such as type 1 (T1D) and type 2 diabetes (T2D). The slice method enables new directions in the study of the pancreas through the maintenance of the complex structures and various intercellular interactions that comprise the endocrine and exocrine tissues of the pancreas. This protocol demonstrates how to perform staining and time-lapse microscopy of live endogenous immune cells within pancreatic slices along with assessments of islet physiology. Further, this approach can be refined to discern immune cell populations specific for islet cell antigens using major histocompatibility complex-multimer reagents.
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