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重组人白介素-18对辐射损伤小鼠细胞周期素基因及凋亡相关基因表达的调节作用

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摘要 为探讨重组人白介素-18(IL-18)对辐射损伤小鼠骨髓细胞周期素基因(cyclinD1)及凋亡相关基因(bcl-2和bax mRNA表达的作用,对32只小鼠分4组进行辐射损伤,第14天用原位杂交法检测小鼠骨髓单个核细胞cyclinD1、bcl-2和bax mRNA的表达。结果表明,与对照组相比,重组人IL-18组骨髓细胞促凋亡基因bax mRNA表达显著减少(P<0.01),而cyclinD1和bcl-2 mRNA的表达显著增强(P<0.01)。结论:重组人IL-18抗辐射损伤可能是通过上调细胞周期素基因cyclinD1和bcl-2的表达及降低bax mRNA的表达,促进造血细胞的增生和提高机体免疫力,从而达到保护机体的目的。
出处 《沈阳部队医药》 2008年第4期233-234,共2页
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