WANG Yaxian,YANG Quanjun,GUO Cheng.Study on improvement effects and mechanism of imperatorin on cachexia model mice[J].ZHONGGUO YAOFANG,2023,34(04):407-412.
WANG Yaxian,YANG Quanjun,GUO Cheng.Study on improvement effects and mechanism of imperatorin on cachexia model mice[J].ZHONGGUO YAOFANG,2023,34(04):407-412. DOI: 10.6039/j.issn.1001-0408.2023.04.05.
Study on improvement effects and mechanism of imperatorin on cachexia model mice
To investigate the improvement effects and mechanism of imperatorin on cachexia model mice.
METHODS
2
Fifteen male C57BL/6J mice were randomly divided into blank control group, model group and imperatorin group, with 5 mice in each group. Except for blank control group, the remaining mice were inoculated with LLC cell suspension subcutaneously on the dorsal surface, and the drug was administered by gavage daily from the 7th day of inoculation. The imperatorin group was gavaged with imperatorin suspension (0.5% sodium carboxymethylcellulose solution as solvent) at 60 mg/kg; blank control group and model group were given an equal volume of 0.5% sodium carboxymethylcellulose solution, for 13 d of continuous administration. During the administration period, food intake and body mass of mice were recorded daily and regularly, tumor long and short diameters were measured every two days, and tumor volume was calculated. The skeletal muscle mass and tumor mass of each group were weighed and the tumor-free body weight was calculated; the pathological changes of skeletal muscle were observed and the cross-sectional area of skeletal muscle fibers was calculated; the phosphorylation levels of signal transduction and activator of transcription 3 (STAT3) (measured as p-STAT3/STAT3 ratio), muscle atrophy box F gene (MAFbx), myostatin (Myog), B-cell lymphoma-2 (Bcl-2), Bcl-2 associated X protein (Bax), Caspase3 protein and mRNA expression were all detected.
RESULTS
2
Compared with blank control group, body mass and skeletal muscle mass of model group were decreased significantly (
P
<0.05), and reduced food intake, loose arrangement of skeletal muscle, large cell space were observed; the cross-sectional area of skeletal muscle fiber was significantly reduced, while p-STAT3/STAT3 ratio, protein and mRNA expressions of MAFbx, Bax and Caspase3 were increased significantly (
P
<0.05). The protein and mRNA expressions of Myog and Bcl-2 were significantly reduced (
P
<0.05). Compared with model group, body weight, tumor-free weight and skeletal muscle weight were increased significantly in imperatorin group (
P
<0.05); food intake increased, while the expressions of tumor weight and volume were decreased significantly (
P
<0.05); the expressions of above proteins and genes were improved significantly (
P
<0.05).
CONCLUSIONS
2
Imperatorin can improve the tumor cachexia state, the mechanism of which may be related to the regulation of ubiquitin-proteasome pathway and anti-apoptosis.
关键词
欧前胡素肿瘤恶病质肌肉萎缩小鼠
Keywords
cancer cachexiamuscle atrophymice
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