畜牧兽医学报 ›› 2025, Vol. 56 ›› Issue (6): 3002-3013.doi: 10.11843/j.issn.0366-6964.2025.06.042

• 临床兽医 • 上一篇    下一篇

新藤黄酸调控糖原代谢途径抑制犬骨肉瘤细胞恶性生物学行为的机制研究

康慧杰1(), 沙季辰1, 杨天元1, 张云彤1, 侯晓昱1, 李思瑶1, 王维千1, 侯庆典1, 张帅1, 杨昊天1,2, 赵元1,*(), 范宏刚1,*()   

  1. 1. 东北农业大学动物医学学院, 哈尔滨 150030
    2. 黑龙江省农业科学院畜牧兽医分院, 齐齐哈尔 161005
  • 收稿日期:2024-07-31 出版日期:2025-06-23 发布日期:2025-06-25
  • 通讯作者: 赵元,范宏刚 E-mail:hj_kang8436@163.com;16645266261@163.com;fanhonggang2002@163.com
  • 作者简介:康慧杰(2000-),男,山西古交人,硕士生,主要从事肿瘤相关研究,E-mail:hj_kang8436@163.com
  • 基金资助:
    国家自然青年科学基金(32302948);中国博士后科学基金(2024M750389)

Mechanistic Studies on the Inhibition of Malignant Biological Behavior of Canine Osteosarcoma Cells by Gambogenic Acid Regulated Glycogen Metabolism Pathway

KANG Huijie1(), SHA Jichen1, YANG Tianyuan1, ZHANG Yuntong1, HOU Xiaoyu1, LI Siyao1, WANG Weiqian1, HOU Qingdian1, ZHANG Shuai1, YANG Haotian1,2, ZHAO Yuan1,*(), FAN Honggang1,*()   

  1. 1. College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
    2. Animal Husbandryand Veterinary Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar 161005, China
  • Received:2024-07-31 Online:2025-06-23 Published:2025-06-25
  • Contact: ZHAO Yuan, FAN Honggang E-mail:hj_kang8436@163.com;16645266261@163.com;fanhonggang2002@163.com

摘要:

本研究基于肿瘤细胞糖原代谢途径探究新藤黄酸(gambogenic acid,GNA)抑制犬骨肉瘤(osteosarcoma,OS)细胞恶性生物学行为的作用及机制。选用Mckinely犬OS细胞系,通过CCK-8试验确定GNA的给药剂量;通过平板克隆试验探究GNA对犬OS细胞增殖的抑制作用;通过划痕愈合试验、Transwell试验及Western blot试验探究GNA对犬OS细胞迁移及侵袭的抑制作用;通过糖原代谢物试剂盒、酶活力试剂盒、RT-PCR及Western blot试验探究GNA对犬OS糖原代谢途径的影响。通过CCK-8试验确定了后续细胞试验所需剂量,低剂量(0.24 μmol·L-1)、中剂量(0.28 μmol·L-1)及高剂量(0.32 μmol·L-1);细胞恶性生物学行为相关试验结果表明,GNA呈剂量依赖性地显著抑制犬OS的增殖、迁移及侵袭行为(P < 0.05);Western blot试验结果表明,GNA呈剂量依赖性地显著抑制Vimentin、MMP-9及Snail蛋白表达(P < 0.05);糖原代谢检测结果表明,GNA能显著促进犬OS细胞葡萄糖的摄取及细胞内糖原含量的增加,并显著抑制GPa的酶活力;RT-PCR结果显示,GNA显著促进犬OS细胞GLUT1表达(P < 0.05),但对犬OS细胞HK2及PYGL的表达均无显著影响(P>0.05);Western blot试验结果与RT-PCR结果基本一致;细胞免疫荧光检测结果表明,GNA能抑制PYGL入核,且PYGL的平均荧光强度随GNA浓度升高而逐渐降低(P < 0.05)。GNA能抑制Mckinely犬OS细胞的增殖、迁移与侵袭且与PYGL所介导的糖原分解途径被抑制相关。

关键词: 犬骨肉瘤, 新藤黄酸, 糖原, 恶性生物学行为

Abstract:

This study investigated the role and mechanism of Gambogenic acid (GNA) in inhibiting the malignant biological behavior of canine osteosarcoma (OS) cells based on tumor cell glycogen metabolism pathway. We used the Mckinely canine OS cell line to determine the dosage of GNA by CCK-8 assay; to investigate the inhibitory effect of GNA on the proliferation of canine OS cells by plate cloning assay; to investigate the inhibitory effect of GNA on the migration and invasion of canine OS cells by scratch healing assay, Transwell assay and Western blot assay; to investigate the effect of GNA on the pathway of glycogen metabolism of canine OS by Glycogen Metabolite Kit, Enzyme activity kit, RT-PCR and Western blot assays to investigate the effect of GNA on the glycogen metabolism pathway of canine OS. The CCK-8 assay was used to determine the doses required for subsequent cell experiments, with low dose of 0.24 μmol·L-1, medium dose of 0.28 μmol·L-1 and high dose of 0.32 μmol·L-1; the results of the experiments related to the malignant biological behaviors of the cells showed that GNA significantly inhibited the proliferation, migration and invasive behaviors of the canine OS in a dose-dependent manner (P < 0.05); the results of the Western blot assay showed that GNA significantly inhibited Vimentin, MMP-9 and Snail protein expression in a dose-dependent manner (P < 0.05); Glycogen metabolism assay showed that GNA significantly promoted glucose uptake and increased intracellular glycogen content in canine OS cells, and significantly inhibited GPa enzyme activity; RT-PCR results showed that GNA significantly promoted the expression of GLUT1 in canine OS cells (P < 0.05); and the results of Western blot assay showed that GNA significantly inhibited GLUT1 expression in canine OS cells (P < 0.05), but had no significant effect on the expression of HK2 and PYGL in canine OS cells (P>0.05); the results of Western blot assay were basically the same as those of RT-PCR; the results of cellular immunofluorescence assay showed that GNA inhibited the entry of PYGL into the nucleus, and the average fluorescence intensity of PYGL was gradually decreased with the increase of the concentration of GNA (P < 0.05). GNA inhibited proliferation, migration and invasion of Mckinely canine OS cells and was associated with inhibition of the PYGL-mediated glycogenolysis pathway.

Key words: canine osteosarcoma, gambogenic acid, glycogen, malignant biological behavior

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