Journal of Practical Oncology ›› 2020, Vol. 34 ›› Issue (6): 504-510.doi: 10.11904/j.issn.1002-3070.2020.06.005

• Basic Research • Previous Articles     Next Articles

Salvianolic acid B regulates ROS to inhibit the proliferation and promote apoptosis in colorectal cancer HCT-116 cells

GUO Piaoting1, MIN Li2, CHEN Jianjun3, WANG Xin4, NI Siyi5   

  1. 1. Department of General Medicine,The Second Affiliated Hospital of Zhejiang Chinese Medical University,Hangzhou 310005,China;
    2. Department of Anorectal,Jiading Hospital of Traditional Chinese Medicine;
    3. Department of Gastrointestinal Surgery,Shanghai Jiao Tong University School of Medicine,Ren Ji hospital;
    4.Department of General Surgery,The Second Affiliated Hospital of Zhejiang Chinese Medical University;
    5.Department of Gastroenterology,The Second Affiliated Hospital of Zhejiang Chinese Medical University
  • Received:2020-07-19 Revised:2020-10-09 Online:2020-12-28 Published:2020-12-23

Abstract: Objective The aims of this study were to verify that Salvianolic acid B(SalB)inhibited the proliferation of human colorectal cancer HCT-116 cells and promoted its apoptosis,and further elaborated its possible mechanism through reactive oxygen species(ROS). Methods The experiment was divided into four groups:HCT-116 group,HCT-116+H202 group,HCT-116+SalB group,and HCT-116+SalB+N-acetylcysteine(NAC)group.After group intervention,MTT assay was used to detect cell viability,plate colony formation assay to detect cell proliferation,and flow cytometry to detect ROS content,cell cycle and apoptotic rate. Results SalB had an inhibitory effect on HCT-116 cells,and it was a positively correlated within a certain concentration range(P<0.01);SalB and H2O2 promoted the generation of ROS in HCT-116 cells(P<0.01),and pretreatment with ROS scavenger NAC could eliminate ROS produced by SalB(P<0.01);SalB inhibited the proliferation of HCT-116 cells(P<0.01)and promoted apoptosis(P<0.01).This effect could be partially reversed by NAC(P<0.05);SalB caused cycle arrest at the G0/G1 phase in HCT-116 cells(P<0.01),and NAC pretreatment completely reversed the cell cycle arrest induced by SalB(P<0.05). Conclusion SalB can cause cell cycle arrest by increasing the level of ROS in HCT-116 cells,thereby inhibiting cell proliferation and promoting cell apoptosis.

Key words: Salvianolic acid B, Reactive oxygen species, Colorectal cancer, Proliferation, Apoptosis

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