小鼠胰島與肝臟脫細胞支架三維共培養(yǎng)的實驗研究
[Abstract]:Aim: to observe the growth and function of primary mouse islets on mouse liver acellular scaffolds and to explore a new method of tissue engineering in the treatment of diabetes mellitus. Methods: the whole liver acellular scaffolds with intact structure were prepared by perfusion and detected. The pancreatic islet cells were obtained by collagenase P perfusion digestion method and the structure and functional integrity of pancreatic islet cells were analyzed. The isolated and purified primary mouse islets were infused into the whole liver acellular scaffolds through portal vein, and the correlation was detected after culture in three-dimensional culture system. Results: no cellular structure was found in the liver acellular scaffolds, and the collagen structure was preserved intact. The biocompatibility of (38 鹵11) ng/mg ds DNA, was better than that of in-stent residual DNA. Pancreatic islets stained with dithizone (dithizone,DTZ) showed specific scarlet color. Glucose stimulation test showed that the insulin secretion function of primary mice cultured in high glucose group was significantly higher than that in low glucose group (P0.01). Pancreatic islets were transplanted into liver acellular scaffolds for 5 days, and insulin gene expression showed that insulin expression level in three-dimensional culture of acellular scaffolds was significantly higher than that in horizontal culture (P0.01). Conclusion: pancreatic islet cells in the three-dimensional culture system of liver acellular scaffolds have better cell viability and more effective insulin secretion function than those in the traditional planar culture system.
【作者單位】: 南通大學附屬醫(yī)院普外科;蘇州大學附屬第一醫(yī)院普外科;
【基金】:國家自然科學基金資助(81471801)
【分類號】:R318.08
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