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药物性肝衰大鼠脾内移植异种肝细胞治疗前后的CD4,CD8的变化及意义 被引量:2

Significance of the changes of CD4 and CD8 in xonogeneic hepatocyte intrasplenic transplantation in the treatment of toxic hepatic failure in rats
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摘要 为探讨异种肝细胞脾内移植治疗大鼠药物性肝衰的意义 ,观察大鼠肝功能、存活率及CD 4,CD8在免疫排斥反应中的作用。笔者以豚鼠肝细胞为供体 ,SD大鼠为受体 ,D -氨基半乳糖(19.5ml/ )腹腔内一次性注射 ,制作肝衰模型。 48h后将微囊化的游离豚鼠肝细胞移植于大鼠脾脏内。以豚鼠裸肝细胞移植及生理盐水脾脏注射为对照。移植后 14d测定存活率和肝功能 ,检查病理切片及CD 4,CD 8的变化。结果示微囊化肝细胞移植组存活率 80 .0 % ,明显高于生理盐水组(2 5 .0 % )和裸肝细胞移植组 (70 .0 % ) (分别为P <0 .0 1和P <0 .0 5 )。微囊肝细胞移植组 14d总胆红素和ALT ,明显低于生理盐水组和裸肝细胞组。移植后 72h和 14d分别测定受体脾脏CD4,CD8淋巴细胞 ,移植后 72h ,14d微囊化肝细胞组、裸肝细胞组CD 4,CD 8均呈阳性。提示 :大鼠药物性肝衰微囊化肝细胞脾内移植后可维持受体存活 14d ,体液和细胞免疫均参与排斥反应。肝细胞微囊化处理可延迟细胞免疫的发生时间。
出处 《中国普通外科杂志》 CAS CSCD 2004年第3期224-227,共4页 China Journal of General Surgery
基金 南京医科大学科研基金资助项目 (NY990 4 2 )
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