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-  2017 

脂氧素A4对睾丸扭转大鼠CD4~+ T细胞的调节和保护作用 Effect of Lipoxin A4 on CD4~+ T Cell in Rat Testicular Torsion

Keywords: 脂氧素A4,CD4~+ T细胞,睾丸扭转,保护作用

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Abstract:

目的:研究脂氧素A4在睾丸缺血-再灌注损伤过程中对免疫细胞CD4~+ T的调节,保护生殖细胞功能作用。方法:健康成年大鼠40只随机分成A组(假手术组)、B组(睾丸扭转组)、C组(扭转复位组)、D组(扭转复位脂氧素A4治疗组),每组各10只。于术后24h分别检测患侧睾丸组织中IFN-γ、IL-2、IL-4、IL-10的浓度,以及睾丸组织中MDA、SOD、GPx含量。对各组睾丸组织行生殖细胞凋亡检测,行HE染色和Johnsen功能评分等形态学观察。结果:与A组相比,睾丸扭转后细胞因子IFN-γ、IL-2和组织中MDA显著升高(P<0.05),而SOD、GPx明显降低。与B和C组比较,D组细胞因子IL-4、IL-10,以及组织中SOD、GPx显著升高(P<0.05),细胞因子IFN-γ、IL-2和睾丸组织MDA水平降低明显。与B和C组比较,D组睾丸凋亡指数明显降低(P<0.05),Johnsen评分明显升高(P<0.05)。透视电镜下,B组和C组生殖细胞内线粒体内嵴结构破坏,溶酶体肿胀,细胞间隙增宽,D组细胞结构完整。结论:在睾丸缺血-再灌注过程中LXA4可以通过调节CD4~+ T细胞炎性因子的释放,减轻再灌注损伤炎症对生殖细胞的损伤,对生殖功能起保护作用

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