Journal of Practical Oncology ›› 2025, Vol. 39 ›› Issue (1): 21-29.doi: 10.11904/j.issn.1002-3070.2025.01.004

• Basic Research • Previous Articles     Next Articles

Effects of maytansine on proliferation,migration,invasion,apoptosis and autophagy of human thyroid cancer cells

GU Na1, TAN Cheng1, WANG Luyao1, SHEN Hongsheng1, LI Xijing1, LI Xinyan2, LIU Cuicui2, ZHAO Xiumei1   

  1. 1. Department of Oncology Medicine Laboratory,Tianjin Institute of Medical and Pharmaceutical Sciences,Tianjin 300020,China;
    2. Department of Pharmacological teaching and research,Cangzhou Medical College
  • Received:2024-08-28 Revised:2024-12-03 Online:2025-02-28 Published:2025-03-19

Abstract: Objective The Objective of this study was to investigate the effects of maytansine on proliferation,migration,invasion,apoptosis and autophagy of human thyroid cancer C643 cells. Methods C643 cells were treated with different concentrations(0.049,0.195,0.781,3.125,12.5,50 and 200 μmol/L)of maytansine,the effect of maytansine on the proliferation of C643 cells was detected by the sulforhodamine B(SRB)method,and the concentration of subsequent experiments was determined.C643 cells in the logarithmic growth stage period were divided into the control group,low-dose group,mid-dose group and high-dose group.The effects of maytansine on migration and invasion abilities of C643 cells were detected by cell scratch and Transwell chamber assay;The levels of reactive oxygen species(ROS)were detected by 2 ′,7 ′-dichlorofluorescein diacetate(DCFH-DA)fluorescent probe experiment;The apoptosis rate of C643 cells was detected by flow cytometry;The expression of proteins related to apoptosis or autophagy was detected by Western blot. Results Maytansine at concentrations of 0.049,0.195,0.781,3.125,12.5,50 and 200 μmol/L could inhibit the proliferation of C643 cells(P<0.05),and exhibited a significant concentration time dependence.The half maximal inhibitory concentrations(IC50)at 24,48 and 72 h were 54.255,5.193 and 0.647 μmol/L,respectively;The cell scratch and Transwell chamber results showed that maytansine at concentrations of 0.1,1 and 10 μmol/L could reduce the migration and invasion abilities of C643 cells(P<0.05 and P< 0.01).The fluorescence probe results showed that maytansine at concentrations of 0.1,1 and 10 μmol/L could increase the intracellular ROS levels of C643 cells(P<0.01).The flow cytometry results showed that maytansine at concentrations of 0.1,1 and 10 μmol/L could concentration dependently increase the apoptosis rate of C643 cells(P<0.01).The Western blot results showed that with the increase of maytansine concentrations,the expression of Bax protein related to apoptosis in C643 cells increased(P<0.05),the expression of Bcl-2 decreased(P<0.05),the expression of LC3II/I(P<0.05)and Beclin-1(P<0.01)increased,while the expression of p62 decreased(P<0.001). Conclusion Maytansine can inhibit the proliferation,migration and invasion of human thyroid cancer C643 cells,and induce the synergistic effect on apoptosis and autophagy by increasing intracellular ROS levels.

Key words: Maytansine, Human thyroid cancer cells, Cell apoptosis, Autophagy

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