摘要
目的:评价当前国内外微囊化人工细胞技术在糖尿病中的应用效果。方法:检索PUBMED数据库中1980/2009有关人工细胞微囊技术进展在糖尿病中应用的文献,检索词"microcapsule,islet,transplantation",并限定文献语言种类为English;同时检索中国期刊全文数据库1999/2009有关人工细胞微囊技术进展在糖尿病中应用的文献,检索词为"微囊,胰岛,移植"。按纳入与排除标准收集所有相关动物随机对照及临床试验,评价其质量及提取数据。结果:共纳入25篇文献,包括46例1型糖尿病患者,106只实验鼠,20头实验猪,25只实验猴。结果显示,与对照组相比,未囊化组与微囊化组胰岛细胞移植均可分泌胰岛素和降低血糖,微囊胰岛细胞组的胰岛细胞作用和存活时间更长。微囊具有较好的免疫隔离作用。结论:微囊胰岛细胞移植后能改善和调节糖尿病的糖代谢异常,且微囊的免疫隔离作用能消除或减轻受体对异体或异种免疫排斥反应,减少或消除对免疫抑制剂的依赖。合适的囊材、合理的工艺、先进的制囊设备和胰岛分离提纯技术、适宜的移植位置能增强微囊胰岛细胞的抗机械强度,提高生物相容性,提高胰岛细胞移植的成功率,改善人工胰岛细胞的功能,延长存活时间。
OBJECTIVE： To systematically evaluate the application of microcapsuled cell or encystation materials for treating diabetes mellitus at hone or abroad in recent years. METHODS： A computer-based online search of PubMed database was undertaken to identify related articles about the microcapsulated cell or encystation material for treating diabetes mellitus published from 1980 to 2009 by using the key words of “microcapsulation, islet, transplantation” in English. Meanwhile, we search CNKI for relevant articles published between 1999 and 2009 with the same key words in Chinese. The related randomized, controlled, and clinical studies were collected according to conclusion and exclusion criteria. RESULTS： Among 25 articles, there were 46 patients with type I diabetes mellitus, 106 rats, 20 pigs, and 25 monkeys. The experimental results showed that both the microcapsulated islets and non-microcapsulated islets could secrete insulin and decrease blood glucose level. The normal blood glucose level with microcapulated islets could be maintained for a long time. Thus, microcapsule had a great immune isolation reaction. CONCLUSION： After transplantation, microencapsulated islet cells could improve and adjust abnormal glycometabolism of patients with diabetes mellitus; furthermore, the immunoisolation effect of microcapsule could eliminate or relieve the immunological rejection of receptors to allograft or xenograft, while it could also relieve or eliminate dependence on immunosuppressive drugs. Appropriate material of microcapsule, reasonable process, advanced equipment, advanced separation and purification technologies of islet, and suitable site for transplantation could improve the function of artificial islet cell, enhance the anti-machinery and chemical strength of microencapsuiated islet, improve biocompatibility, and prolong survival time.
出处
《中国组织工程研究与临床康复》
CAS
CSCD
北大核心
2009年第47期9349-9352,共4页
Journal of Clinical Rehabilitative Tissue Engineering Research
