1.大连理工大学,大连 116000;2.苏州大学药学院,苏州 215123;3.大连医科大学附属第二医院,大连 116027;4.中国科学院大连化学物理研究所,大连 16000
国家自然科学基金面上项目(21675017)和辽宁省自然科学基金项目(20180550386)资助.
1.Dalian University of Technology, Dalian 116000, China;2.College of Phrmaceutical Sciences, Soochow University, Suzhou 215123, China;3.The Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China;4.DalianInstitute of Chemical Physics, Chinese Academy of Sciences, Dalian 116000, China
This work was supported by grants from The National Natural Science Foundation of China (21675017) and Liaoning Provincial Natural Science Foundation(20180550386).
2型糖尿病是一种全身性代谢性疾病,通常涉及多个组织和器官之间因相互作用而导致胰岛素抵抗以及胰岛功能衰竭的最终状态. 本文建立了脂肪3D器官芯片、胰岛3D器官芯片及其联合应用的模型,可对2型糖尿病的发病过程和药物治疗进行多重评价. 设计了一种双通道复合式微流控芯片,将脂肪器官分泌的细胞因子以及脂多糖(LPS)共同引入胰岛器官的芯片培养室,芯片通道连续灌流以模拟体液交换. 通过分析脂肪细胞和胰岛细胞的脂联素(ADP)、白介素6(IL-6)和白介素1β(IL-1β)等炎症因子的分泌情况,以及胰岛细胞的胰岛素分泌能力与对照组细胞相比较所产生的变化,分析胰岛细胞的损伤情况以及系统内炎症反应情况. 结果表明,LPS可以引起胰岛细胞的炎症反应以及功能性变化,且脂肪组织的存在能一定程度上加重这种反应,利拉鲁肽(liraglutide)通过减少脂肪和胰岛细胞的炎症反应,能够减轻LPS以及脂肪组织对胰岛细胞的刺激,以改善胰岛细胞的功能. 基于微流控芯片的脂肪器官和胰岛器官联合应用的平台可应用于由不同组织之间的相互作用而产生的多器官疾病反应,有望成为2型糖尿病等全身代谢类疾病药物评价的有力工具.
Type 2 diabetes is a systematic metabolic disease that involves complex interplay of multiple organs, of which adipose tissue and pancreatic islet are two key organs related to its pathogenesis. In this paper, models of fat 3D organ chip, islet 3D organ chip and their combination were established, which can be used to study the pathogenesis and to assess the mechanism of hypoglycemic agents for treatment of type 2 diabetes. A two-channel composite microfluidic chip was designed to study the effects of lipopolysaccharide (LPS) first on fat cells in one chip chamber and on islet cell in a seperate chip culture chamber. The chip channel was continuously perfused to simulate constantly changes in contents of the body fluid. The secretion of inflammatory factors such as adiponectin (ADP), interleukin-6 (IL-6) and interleukin-1β (IL-1β) from adipocytes and islet cells, the insulin secretion from islet cells, and islet cell survival rate in medium flashed with LPS or LPS/liraglutide were compared with those from cells flashed with the control medium. The results showed that LPS decreased ADP production from fat 3D organ chip, in islet 3D organ chip, and in fat/islet 3D double organ chip, LPS promoted IL-1β and IL-6 production from fat 3D organ chip and 3D fat/islet double organ chip, but not from islet 3D organ chip. Liraglutide could improve the production of ADP, and decreased IL-1β, IL-6 from fat 3D organ chip and fat/islet 3D double organ chip, but no effects on islet 3D organ chip. LPS and liraglutide separate or in combination had no effect on insulin production from islet 3D organ chip, but LPS decreased insulin production from fat/islet 3D double organ chip, liraglutide improved the decreased insulin production from fat/islet double organ chip due to LPS. The platform for the combined application of the fat organ and the islet organ based on the microfluidic chip can be applied to the multi-organ disease reaction caused by the interaction between different tissues and is expected to be a powerful tool for drug evaluation of systemic metabolic diseases such as type 2 diabetes.
由岫,张秀莉,罗勇,刘立朝,赵伟杰,林炳承.用于2型糖尿病研究的3D多器官芯片[J].生物化学与生物物理进展,2019,46(6):620-630
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