過氧化氫對小鼠睪丸支持細(xì)胞損傷機制的代謝組學(xué)研究
[Abstract]:Aim: to study the mechanism of oxidative stress in mouse testicular Sertoli cells by gas chromatography-mass spectrometry (GC-MS). Methods: TM4 cells of mouse testicular Sertoli cells were treated with hydrogen peroxide (H_2O_2), and the pathological model of oxidative injury cells was established. The survival rate was detected by MTT, the apoptosis rate was analyzed by flow cytometry, and the level of reactive oxygen species (ROS) was detected by fluorescence spectrophotometer. At the same time, GCMS was used to detect the fingerprint of endogenous metabolites in each group after H_2O_2 intervention. Results: the H_2O_2 injury model was successfully established, and the cell survival rate decreased to about 50% after the treatment of 600 渭 mol/L H_2O_2 for 2 h. The total apoptotic rates were (19.45 鹵0.53)%, (20.12 鹵0.58)% and (37.13 鹵0.35)% in low (100 渭 mol/L), middle (300 渭 mol/L) and high (600 渭 mol/L) H_2O_2 groups, respectively. It was significantly higher than the control group without H_2O_2 [(10.28 鹵0.35)%, P 0.05]. The level of ROS in the high H_2O_2 group [(1.27 鹵0.10)%, (2.07 鹵0.09)%] was significantly higher than that in the control group [(1.00 鹵0.08)%, P 0.05 P0.01]. Compared with the control group, the metabolic levels of amino acids and carbohydrates in high dose groups were significantly changed, including valine, orthvaline, leucine, glutamic acid, arabinose, fructose, etc. There were significant differences (VIP1,P0.05) in 15 metabolites including serotonin and cholesterol. Conclusion: the injury or apoptosis of testicular Sertoli cells after H_2O_2 intervention is closely related to the metabolism of amino acids, glucose and energy.
【作者單位】: 南京工業(yè)大學(xué)藥學(xué)院;南京大學(xué)醫(yī)學(xué)院附屬金陵醫(yī)院/南京軍區(qū)南京總醫(yī)院男科;
【基金】:國家自然科學(xué)基金(81373478,81370750) 2015年江蘇高校優(yōu)秀科技創(chuàng)新團隊計劃~~
【分類號】:R698.2
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