Effect of Wenfei Huaxian Decoction (温肺化纤汤) on Aerobic Glycolysis of Hydrogen Peroxide-induced Oxidative Stress Injury of Lung Mesenchymal Stem Cells in Mice
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Effect of Wenfei Huaxian Decoction (温肺化纤汤) on Aerobic Glycolysis of Hydrogen Peroxide-induced Oxidative Stress Injury of Lung Mesenchymal Stem Cells in Mice
Journal of Traditional Chinese MedicineVol. 63, Issue 3, Pages: 262-268(2022)
MO Lisha,QIU Mingliang,ZHU Guoshuang,et al.Effect of Wenfei Huaxian Decoction (温肺化纤汤) on Aerobic Glycolysis of Hydrogen Peroxide-induced Oxidative Stress Injury of Lung Mesenchymal Stem Cells in Mice[J].Journal of Traditional Chinese Medicine,2022,63(03):262-268.
MO Lisha,QIU Mingliang,ZHU Guoshuang,et al.Effect of Wenfei Huaxian Decoction (温肺化纤汤) on Aerobic Glycolysis of Hydrogen Peroxide-induced Oxidative Stress Injury of Lung Mesenchymal Stem Cells in Mice[J].Journal of Traditional Chinese Medicine,2022,63(03):262-268.DOI: 10.13288/j.11-2166/r.2022.03.012.
Effect of Wenfei Huaxian Decoction (温肺化纤汤) on Aerobic Glycolysis of Hydrogen Peroxide-induced Oxidative Stress Injury of Lung Mesenchymal Stem Cells in Mice
(温肺化纤汤, WHD) in the treatment of idiopathic pulmonary fibrosis (IPF).
Methods
2
C57BL/6 mice lung mesenchymal stem cells (LMSCs) were isolated by gradient density centrifugation. The LMSCs were cultured in vitro, and different concentrations (100, 200, 300, 400, 500, 600, 700 and 800 µmol/L) of hydrogen peroxide (H
2
O
2
) were used to induce cell injury. The survival rate of LMSCs was detected by MTT method, and the H
2
O
2
concentration corresponding to the survival rate of 50% was used in subsequent experiments. The cells were divided into normal control group and WHD groups with different concentrations (1600, 800, 400, 200, 100, 50, and 25 µg/ml), and the MTT method was used to detect the toxicity of WHD. The cells were divided into normal control group, model group, and WHD groups with different concentrations (1600, 800, 400, 200, 100, 50, and 25 µg/ml), and the optimal concentration of WHD was determined for subsequent experiments following the principle of minimum dose with maximum effect and referring to the survival rate of the cells. The sample were divided into normal control group, model group, positive control group, and WHD low, medium and high dose groups. Except for the normal control group, the model group and all WHD dose groups were given H
2
O
2
for 6 hours 24 hours after pretreatment to develop the model. After modeling, the glucose intake and the lactic acid level in cell supernatant were detected. The mRNA levels of the aerobic glycolysis related hexokinase 2 (HK2) and pyruvate kinase 2 (PKM2) were detected by RT-PCR.
Results
2
When 600 µmol/L H
2
O
2
were given to LMSCs for 6 h, the cell survival rate was (52.87 ± 0.82)%. Therefore, 600 µmol/L was used as the concentration of H
2
O
2
in subsequent oxidative stress injury model. Compared to the normal control group, the WHD groups with different concentrations (25 µg/ml to 1600 µg/ml) all had no toxic effect on LMSCs (
P
>0.05). Compared to that in the model group, the cell survival rate of LMSCs in the WHD groups significantly increased after pretreatment with different concentrations (25 µg/ml to 1600 µg/ml) of WHD (
P
<0.01). The equal concentration gradient with ratio of 4
1 were set, and the concentration of 25, 100 and 400 µg/ml were determined as the low, medium and high dose of WHD. Compared to those in the normal control group, the glucose uptake and lactic acid content in the model group decreased (
P
<0.01), and the mRNA levels of aerobic glycolysis related enzymes HK2 and PKM2 (
P
<0.05) after oxidative stress injury of LMSCs. Compared to the model group, all dose groups of WHD increased the glucose intake and lactic acid level (
P
<0.05), while the WHD medium and high dose groups (100 and 400 µg/ml) increased the mRNA expression of HK2 and PKM2 (
P
<0.01). Compared to the positive control group, the WHD high dose group had higher glucose intake and lactic acid content (
P
<0.05). Compared to the low dose group of WHD, the medium and high dose groups significantly increased the mRNA levels of HK2 and PKM2 (
P
<0.05).
Conclusion
2
WHD can improve the oxidative stress injury induced by H
2
0
2
in the treatment of IPF, and its mechanism may be related to enhancing the aerobic glycolysis of LMSCs.
关键词
Keywords
references
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