Mechanism of rapamycin combined with flagellin inhibiting 4T1 breast cancer cells in vitro based on mRNA high-throughput sequencing
10.3969/j.issn.1000-4718.2024.09.008
- VernacularTitle:基于mRNA高通量测序初探雷帕霉素联合鞭毛蛋白体外抑制4T1乳腺癌细胞的机制
- Author:
Yun FANG
1
;
Xi CHEN
;
Jing ZHANG
;
Li LUO
;
Yao CHEN
;
Congyan TAN
;
Jun YU-AN
Author Information
1. 贵阳市第二人民医院,贵州 贵阳 550000
- Keywords:
mRNA high-throughput sequencing;
4T1 breast cancer cells;
rapamycin;
flagellin
- From:
Chinese Journal of Pathophysiology
2024;40(9):1629-1634
- CountryChina
- Language:Chinese
-
Abstract:
AIM:This study explores how the combination of rapamycin(Rapa)and flagellin(FliC)affects the inhibition of 4T1 breast cancer cells.The approach involves using mRNA high-throughput sequencing to examine the underlying mechanisms of this combination therapy in vitro.METHODS:4T1 breast cancer cells were divided into four groups:control group,Rapa group,FliC group,and Rapa+FliC group.The changes in cell viability and apoptosis were detected by the CCK-8 method and flow cytometry.Concurrently,the KEGG pathway of differentially expressed genes(DEGs)was analyzed by high-throughput mRNA sequencing.Furthermore,the DEGs between the Rapa+FliC group and Rapa groups were analyzed using STRING.The PPI network of DEGs was then constructed,and the Hub genes were sub-sequently screened.The protein expression of the Hub gene was verified based on the HPA database.RESULTS:CCK-8 assays and flow cytometry analysis revealed that the combination of Rapa and FliC significantly increased both the inhibi-tion and apoptosis rates in 4T1 breast cancer cells compared to the rates observed with Rapa or FliC alone(P<0.05).Transcriptome sequencing indicated 579 DEGs between the Rapa group and the control group,predominantly in the PI3K/Akt signaling pathway.In contrast,DEGs between the FliC group and control were mainly concentrated in signaling path-ways like NOD-like receptor signaling.Additionally,150 DEGs were identified between the Rapa+FliC group and the Ra-pa group,focusing primarily on pathways such as mTOR.From the protein-protein interaction(PPI)network,ten hub genes,including Atm and Itga2,were identified.CONCLUSION:The combination of Rapa+FliC could inhibit the via-bility of 4T1 breast cancer cells in vitro and promote apoptosis,potentially through the PI3K/Akt/mTOR signaling path-way.The genes Atm and Itga2 could be pivotal in mediating the joint effect of this combination therapy.
