脐带间充质干细胞条件培养基对小型猪创伤性颅脑损伤组织修复的影响

被引:1
作者
崔连旭 [1 ]
李昊旻 [1 ]
许峻荣 [2 ]
谭宝东 [1 ]
陆大鸿 [1 ]
彭四维 [1 ]
王进辉 [2 ]
机构
[1] 佛山市第一人民医院微创及脊髓神经外科
[2] 广东唯泰生物科技有限公司
关键词
脐带间充质干细胞; 条件培养基; 分泌组; 颅脑损伤; 神经修复; 神经炎症; 小型猪; 工程化干细胞;
D O I
暂无
中图分类号
R651.15 [];
学科分类号
摘要
背景:颅脑损伤是一种高发病率、高致残率及高致死率的常见创伤性疾病,目前缺乏有效的治疗方法,脐带间充质干细胞通过旁分泌途径为颅脑损伤治疗提供了新的研究方向。目的:探讨脐带间充质干细胞条件培养基对外力打击所致小型猪颅脑损伤的治疗作用。方法:选取12头健康小型猪,随机分为模型组和实验组,每组6只,通过外力打击建立猪颅脑损伤模型,实验组造模后以微量注射泵将脐带间充质干细胞条件培养基注入脑损伤处周围4个点进行治疗。术后第1-14天,评价小型猪空间记忆能力;术后第5天,核磁共振扫描评价小型猪脑组织损伤、水肿情况;术后第14天,剖检小型猪脑组织损伤部位,进行苏木精-伊红染色,胶质纤维酸性蛋白、Iba1免疫组化染色和TUNEL染色,评价小型猪脑组织的损伤和修复情况。结果与结论:(1)实验组小型猪空间记忆能力评分与模型组相比无统计学差异(P > 0.05);(2)术后第5天,两组小型猪脑部均出现明显的脑组织水肿信号,与模型组比较,实验组小型猪脑组织水肿范围缩小;(3)术后第14天,模型组小型猪损伤部位脑组织可见水肿、淤血、坏死,苏木精-伊红染色可见脑组织坏死,实验组小型猪损伤部位脑组织水肿较模型组减轻;(4)两组小型猪损伤部位脑组织均可见胶质纤维酸性蛋白和Iba1阳性表达,实验组胶质纤维酸性蛋白和Iba1阳性表达量均低于模型组;(5)TUNEL染色显示两组小型猪损伤部位脑组织均有细胞凋亡阳性表达,实验组凋亡细胞表达量低于模型组。结果表明,脐带间充质干细胞条件培养基通过减少脑组织水肿、降低脑组织炎症、减轻细胞凋亡,对小型猪颅脑损伤发挥治疗作用。
引用
收藏
页码:1730 / 1735
页数:6
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