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氟苯尼考影响子宫内膜基质细胞蜕膜化的功能研究

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目的:探究氟苯尼考(florfenicol,FLO)暴露对蜕膜化的影响及线粒体在其中发挥的作用.方法:构建FLO暴露的原代小鼠蜕膜基质细胞(mouse decidual stromal cells,mDSCs)模型,经FLO(1.56、6.25、25.00 μg/mL)暴露后,采用鬼笔环肽染色法观察细胞形态变化,采用Western blot检测蜕膜化标志分子HOXA10表达以分析FLO对蜕膜化的影响;采用流式细胞术检测细胞凋亡,采用Western blot检测细胞增殖标志分子PCNA表达以分析FLO对蜕膜化过程中细胞增殖、凋亡的影响;采用荧光探针Mito-tracker Red观察线粒体形态,采用免疫荧光检测线粒体外膜标志蛋白TOMM20表达并检测ATP水平以分析FLO对蜕膜基质细胞线粒体功能的影响.结果:25.00 μg/mL FLO暴露导致细胞形态异常,蜕膜化标志分子HOXA10表达降低(P=0.002),细胞凋亡水平增加,细胞增殖能力降低;进一步发现FLO暴露后线粒体外膜标志蛋白TOMM20表达降低(P=0.010)、线粒体形态异常和ATP水平降低(P=0.003).结论:25.00 μg/mLFLO暴露可能与线粒体功能打破mDSCs的细胞增殖、凋亡平衡,损伤蜕膜化进程有关.
Impact of florfenicol on decidualization of endometrial stromal cells
Objective:To investigate the impact of florfenicol(FLO)exposure on decidualization and the role of mitochondria in this process.Methods:Primary mouse decidual stromal cells(mDSCs)were used to establish a model of FLO exposure.After exposure to FLO(1.56,6.25,and 25.00 μg/mL),Phalloidin staining was used to observe cell morphology;Western blot was used to measure the ex-pression of HOXA10,a maker molecule for decidualization;and investigate the influence of FLO on cell proliferation and apoptosis during decidualization;the fluorescent probe Mito—tracker Red was used to observe mitochondrial morphology;immunofluorescence as-say was used to measure the expression of TOMM20,a marker protein for outer mitochondrial membrane,and the level of ATP to ob-serve the influence of FLO on mitochondrial function in mDSCs.Results:Exposure to 25.00 μg/mL FLO led to abnormal cell morphol-ogy,reduced the expression of the marker molecule for decidualization HOXA10(P=0.002),promoted apoptosis,and inhibited cell pro-liferation.Further analysis showed a reduction in the expression of marker protein for outer mitochondrial membrane TOMM20(P=0.010),abnormal mitochondrial morphology,and a reduction in the level of ATP(P=0.003).Conclusion:Exposure to 25.00 μg/mL FLO may disrupt the balance between the proliferation and apoptosis of mDSCs and damage the decidualization process,which is asso-ciated with mitochondrial function.

florfenicoldecidualizationendometrial stromal cellsmitochondria

何佳仪、代德贤、李伟轲、高茹菲、王应雄、龙菁

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重庆医科大学公共卫生学院教育部生殖与发育国际合作联合实验室,重庆 400016

氟苯尼考 蜕膜化 子宫内膜基质细胞 线粒体

重庆市自然科学基金资助项目

CSTB2023NSCQ-BHX0079

2024

重庆医科大学学报
重庆医科大学

重庆医科大学学报

CSTPCD北大核心
影响因子:0.724
ISSN:0253-3626
年,卷(期):2024.49(7)