中国病理生理杂志2025，Vol.41Issue(10)：1955-1962,8.DOI:10.3969/j.issn.1000-4718.2025.10.010
土贝母苷甲促进Snail泛素化降解抑制PANC-1胰腺癌细胞恶性进展
Tubeimoside I promoted Snail ubiquitination degradation and inhibited the malignant progression of PANC-1 pancreatic cancer cells
摘要
Abstract
AIM:This study aims to investigate the molecular mechanism by which tubeimoside I(TBMS1)inhibits Snail expression in pancreatic cancer cells(PANC-1).METHODS:Human pancreatic cancer PANC-1 cells were cultured in vitro.The inhibitory effect of TBMS1 on PANC-1 cells was assessed using the MTT assay,and the data were analyzed based on the IC50 value of TBMS1.The impact of TBMS1 on the clonal formation ability of PANC-1 cells was evaluated through colony formation assays.The Transwell assay was employed to assess the effect of TBMS1 on the migrato-ry capability of PANC-1 cells.Apoptosis and cell cycle alterations in PANC-1 cells were analyzed using acridine orange staining and flow cytometry.The expression of Snail protein in pancreatic cancer and its relationship with survival of the patients were analyzed using the GEPIA database and Kaplan-Meier Plotter data.Immunofluorescence staining was con-ducted to investigate the effect of TBMS1 on Snail expression,while Western blot was used to evaluate the expression of poly(ADP-ribose)polymerase(PARP),E-cadherin and Snail in the cells.The ubiquitination of Snail protein was mea-sured using immunoprecipitation techniques.RESULTS:As the concentration of TBMS1 increased,the survival rate and number of clones formed by PANC-1 cells progressively decreased,leading to apoptosis,cleavage of PARP,and cell cycle arrest in the G1 phase.There was also a reduction in the proportion of cells in the S phase and a decrease in cell migration ability.The expression of Snail protein,a critical factor in cell migration,was inhibited,while E-cadherin protein levels were increased.Treatment with the proteasome inhibitor MG132 was able to reverse the suppression of Snail protein ex-pression caused by TBMS1.Immunoprecipitation results indicated that TBMS1 enhances the ubiquitination and subse-quent degradation of Snail protein.CONCLUSION:TBMS1 effectively inhibits the malignant progression of pancreatic cancer cells by promoting the ubiquitination and degradation of Snail protein in PANC-1 cells.关键词
土贝母苷甲/胰腺癌/Snail蛋白/泛素化Key words
tubeimoside I/pancreatic cancer/Snail protein/ubiquitin分类
临床医学引用本文复制引用
冯丽学,张春云,李泽彦,殷慧琦,孙婴宁,刘殿辉,于保刚,刘和,杨清竹..土贝母苷甲促进Snail泛素化降解抑制PANC-1胰腺癌细胞恶性进展[J].中国病理生理杂志,2025,41(10):1955-1962,8.基金项目
黑龙江省省属高等学校基本科研业务费科研项目(No.145409209) （No.145409209）
中国热带农业科学院环境与植物保护研究所自主立项项目(No.hzs2024002) （No.hzs2024002）
