吉林大学学报(医学版) ›› 2026, Vol. 52 ›› Issue (1): 26-34.doi: 10.13481/j.1671-587X.20260104

• 基础研究 • 上一篇    下一篇

异菌脲对小鼠精母细胞GC-2铁死亡的影响

胡晓雪,艾霄文,杨安娜,张永兰()   

  1. 重庆理工大学药学与生物工程学院制药工程系,重庆 400054
  • 收稿日期:2025-01-17 接受日期:2025-03-01 出版日期:2026-01-28 发布日期:2026-02-24
  • 通讯作者: 张永兰 E-mail:lanzy2015@cqut.edu.cn
  • 作者简介:胡晓雪(2000-),女,四川省达州市人,在读硕士研究生,主要从事分子药理学方面的研究。
  • 基金资助:
    国家自然科学基金青年科学基金项目(81803800);重庆市科技局自然科学基金项目(cstc2018jcyjAX0529);重庆市科技局自然科学基金项目(CSTB2023NSCQ-MSX0469)

Effect of iprodione on ferroptosis in spermatocytes GC-2 of mice

Xiaoxue HU,Xiaowen AI,Anna YANG,Yonglan ZHANG()   

  1. Department of Pharmaceutical Engineering,School of Pharmacy and Bioengineering,Chongqing University of Technology,Chongqing 400054,China
  • Received:2025-01-17 Accepted:2025-03-01 Online:2026-01-28 Published:2026-02-24
  • Contact: Yonglan ZHANG E-mail:lanzy2015@cqut.edu.cn

摘要:

目的 探讨异菌脲 (Ipr)对小鼠精母细胞GC-2铁死亡的影响,并阐明其可能的作用机制。 方法 采用噻唑蓝 (MTT)法检测0、0.001、0.010、0.100、1.000、10.000和100.000 μmol·L-1 Ipr处理24 h后GC-2细胞活性。另取GC-2细胞,分为空白对照组、1.0 μmol·L-1 Ipr组、2.5 μmol·L-1 Ipr组和5.0 μmol·L-1 Ipr组(分别加入终浓度为0、1.0、2.5和5.0 μmol·L-1的Ipr溶液处理24 h)。采用荧光显微镜观察细胞中活性氧(ROS)生成和线粒体膜电位;采用试剂盒检测超氧化物歧化酶(SOD)活性和丙二醛(MDA)水平及还原型谷胱甘肽(GSH)/氧化型谷胱甘肽(GSSG)比值,Western blotting法检测Ipr暴露后各组GC-2细胞中铁死亡相关蛋白表达水平,免疫荧光法检测各组GC-2细胞中血红素加氧酶1(HO-1)蛋白荧光强度。 结果 MTT法,与0 μmol·L-1 Ipr组比较,1.000、10.000和100.000 μmol·L-1 Ipr组GC-2细胞活性明显降低(P<0.01),后续实验选择1.0、2.5和5.0 μmol·L-1 Ipr作用GC-2细胞。荧光检测法,与空白对照组比较,2.5和5.0 μmol·L-1 Ipr处理GC-2细胞可促进ROS生成并降低线粒体膜电位;1.0 μmol·L-1 Ipr组GC-2细胞中MDA水平和SOD活性及GSH/GSSG比值均无明显变化,差异无统计学意义(P>0.05),2.5和5.0 μmol·L-1 Ipr组GC-2细胞中MDA水平明显升高(P<0.05或P<0.01),SOD活性和GSH/GSSG比值明显降低(P<0.01)。Western blotting法,与空白对照组比较,作用24 h后1.0 μmol·L-1 Ipr组GC-2细胞中谷胱甘肽过氧化物酶4(GPX4)和铁蛋白重链1(FTH1)蛋白表达水平均无明显变化,差异无统计学意义(P>0.05),作用24 h后2.5和5.0 μmol·L-1 Ipr组GC-2细胞中GPX4和FTH1蛋白表达水平均明显降低(P<0.05或P<0.01),作用24 h后1.0、2.5和5.0 μmol·L-1 Ipr组GC-2细胞中HO-1蛋白表达水平均明显升高(P<0.01)。免疫荧光法,与空白对照组比较,1.0、2.5和5.0 μmol·L-1 Ipr组GC-2细胞中HO-1蛋白荧光强度明显增强。 结论 Ipr导致小鼠精母细胞GC-2铁死亡,其机制可能与上调HO-1蛋白表达以及下调GPX4和FTH1蛋白表达有关。

关键词: 铁死亡, 小鼠精母细胞GC-2, 异菌脲, 谷胱甘肽过氧化物酶4, 铁蛋白重链1, 血红素加氧酶1

Abstract:

Objective To discuss the effect of iprodione (Ipr) on ferroptosis in mouse spermatocyte GC-2 cells, and to clarify its possible mechanism. Methods The MTT method was used to detect the viability of GC-2 cells after treatment with 0, 0.001, 0.010, 0.100, 1.000, 10.000, and 100.000 μmol·L-1 Ipr for 24 h. Additional GC-2 cells were taken and divided into blank control group, 1.0 μmol·L-1 Ipr group, 2.5 μmol·L-1 Ipr group, and 5.0 μmol·L-1 Ipr group (treated with Ipr solutions at final concentrations of 0, 1.0, 2.5, and 5.0 μmol·L-1, respectively, for 24 h). Fluorescence microscope was used to observe the intracellular reactive oxygen species (ROS) generation and mitochondrial membrane potential changes; Kit methods were used to detect the superoxide dismutase (SOD)activity, malondialdehyde (MDA) level, and the reduced glutathione (GSH)/oxidized glutathione (GSSG) ratio in the GC-2 cells in various groups; Western blotting method was used to detect the expression levels of ferroptosis-related proteins in the GC-2 cells in various groups after Ipr exposure; immunofluorescence method was used to detect the fluorescence intensity of heme oxygenase-1 (HO-1) protein in the GC-2 cells in various groups. Results The MTT assay results showed that compared with 0 μmol·L-1 Ipr group, the viabilities of the GC-2 cells in 1.000, 10.000, and 100.000 μmol·L-1 Ipr groups were significantly decreased (P<0.01); thus, 1.0, 2.5, and 5.0 μmol·L-1 Ipr were selected for subsequent experiments on GC-2 cells. The fluorescence analysis results showed that compared with blank control group, the ROS generation in the GC-2 cells in 2.5 and 5.0 μmol·L?1 Ipr groups was increased and the mitochondrial membrane potentials were decreased; there were no significant changes in the MDA level, SOD activity, and GSH/GSSG ratio in the GC-2 cells in 1.0 μmol·L-1 Ipr group (P>0.05); compared with blank control group, the MDA levels in the GC-2 cells in 2.5 and 5.0 μmol·L-1 Ipr groups were significantly increased (P<0.05 or P<0.01), and the SOD activities and GSH/GSSG ratios were significantly decreased (P<0.01). The Western blotting results showed that compared with blank control group, after 24 h of treatment, the expression levels of glutathione peroxidase 4 (GPX4) and ferritin heavy chain 1 (FTH1) proteins in the GC-2 cells in 1.0 μmol·L-1 Ipr group showed no significant changes (P>0.05); compared with blank control group, after 24 h of treatment, the expression levels of GPX4 and FTH1 proteins in the GC-2 cells in 2.5 and 5.0 μmol·L?1 Ipr groups were significantly decreased (P<0.05 or P<0.01); compared with blank control group, after 24 h of treatment, the expression levels of HO-1 protein in the GC-2 cells in 1.0, 2.5, and 5.0 μmol·L-1 Ipr groups were significantly increased (P<0.01). The immunofluorescence results showed that compared with blank control group, the fluorescence intensities of HO-1 protein in the GC-2 cells in 1.0, 2.5, and 5.0 μmol·L-1 Ipr groups were significantly enhanced. Conclusion Ipr induces ferroptosis in mouse spermatocyte GC-2 cells, and its mechanism may be related to the up-regulation of HO-1 protein expression and the down-regulation of GPX4 and FTH1 protein expressions.

Key words: Ferroptosis, Mouse spermatocyte GC-2, Iprodione, Glutathione peroxidase 4, Ferritin heavy chain 1, Heme oxygenase-1

中图分类号: 

  • R966