ZHANG Yi,ZHENG Ran,YU Qi,et al.Effect of Ranae Oviductus Protein Hydrolysate on Ethanol-induced L-02 Cell Injury[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(15):43-50.
ZHANG Yi,ZHENG Ran,YU Qi,et al.Effect of Ranae Oviductus Protein Hydrolysate on Ethanol-induced L-02 Cell Injury[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(15):43-50. DOI: 10.13422/j.cnki.syfjx.20211404.
Effect of Ranae Oviductus Protein Hydrolysate on Ethanol-induced L-02 Cell Injury
To study the protective effect and mechanism of Ranae Oviductus protein hydrolysate (ROPH) on the expression of pathway-related proteins in ethanol-induced L-02 cell injury.
Method
2
The ROPH was prepared by compound enzymatic hydrolysis. L-02 cell injury model was induced with 400 mmol·L
-1
ethanol. Cell viability was detected by cell counting kit-8 (CCK-8) assay. Cell cycle and apoptosis were examined by flow cytometry. JC-1/Hochest staining was employed for qualitative investigation. The expression of related proteins in apoptosis, mitogen-activated protein kinase (MAPK) signaling pathway, and pyroptosis in L-02 cells was detected by Western blot.
Result
2
The results of the CCK-8 assay showed that 400 mmol·L
-1
ethanol could induce L-02 cell injury within 12 hours. Compared with the blank group, the model group showed decreased viability of L-02 cells (
P
<
0.01), elevated percentage of the cell cycle in the G
0
/G
1
phase (
P
<
0.01), increased total cell apoptosis rate (
P
<
0.01), reduced mitochondrial membrane potential (
P
<
0.01), up-regulated expression of apoptosis-related proteins [B-cell lymphoma-2 (Bcl-2)-associated X protein (Bax), Cytochrome C (Cyt C), and cysteine-dependent aspartate specific protease-3 (Caspase-3)] (
P
<
0.05,
P
<
0.01) and MAPK signaling pathway-related proteins [C-Jun amino-terminal kinase (JNK) and p38 MAPK] (
P
<
0.05,
P
<
0.01), and potentiated expression of pyrolysis-related proteins Caspase-1 and interleukin-1
β
(IL-1
β
) (
P
<
0.05). Compared with the model group, the ROPH treatment group exhibited improved cell cycle arrest (
P
<
0.05,
P
<
0.01), diminished total cell apoptosis rate (
P
<
0.01), elevated mitochondrial membrane potential in a dose-dependent manner, down-regulated expression of Bax, Cyt C, and Caspase-3 proteins (
P
<
0.05,
P
<
0.01), up-regulated expression of Bcl-2 protein (
P
<
0.05,
P
<
0.01), and a downward trend in expression of proteins related to MAPK signaling pathway and pyrolysis (
P
<
0.05,
P
<
0.01).
Conclusion
2
ROPH could inhibit oxidative stress-triggered liver injury in ethanol-induced cells by improving mitochondrial membrane potential, reducing the expression of proteins in the mitochondria-mediated apoptosis pathway, and inhibiting the expression of proteins related to the MAPK signaling pathway and pyrolysis pathway to reduce the mitochondrial dysfunction and inflammatory response in ethanol-induced L-02 liver cells and inhibit oxidative stress, thereby exerting a therapeutic role in alcoholic liver injury.
关键词
Keywords
references
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