[Effect of P-coumaric Acid on Apoptosis of Multiple Myeloma Cells Based on Oxidative Stress]

Zhongguo Shi Yan Xue Ye Xue Za Zhi. 2023 Apr;31(2):435-441. doi: 10.19746/j.cnki.issn.1009-2137.2023.02.018.
[Article in Chinese]

Abstract

Objective: To investigate the effect of p-coumaric acid on apoptosis of multiple myeloma cells and its related mechanism.

Methods: Multiple myeloma cell line MM.1s cells were selected and treated with different concentrations of p-coumaric acid (0, 0.4, 0.8, 1.6, 3.2 mmol/L), and the inhibition rate and half inhibition concentration (IC50) were detected by CCK-8 method. Then MM.1s cells were treated with 1/2 IC50, IC50, 2 IC50 and transfected with ov-Nrf-2 and ov-Nrf-2+IC50. The apoptosis, ROS fluorescence intensity and mitochondrial membrane potential of MM.1s cells were detected by flow cytometry, and the relative expressions of cellular Nrf-2 and HO-1 protein were detected by Western blot.

Results: P-coumaric acid inhibited the proliferation of MM.1s cells in a dose-dependent manner(r =0.997) with an IC50 value of 2.754 mmol/L. Compared with the control group, apoptosis and ROS fluorescence intensity of MM.1s cells were significantly increased in the 1/2 IC50 group, IC50 group, 2 IC50 group and ov-Nrf-2+IC50 group (P <0.01), the expressions of Nrf-2, HO-1 protein in the IC50 group and 2 IC50 group were significantly decreased (P <0.05). Compared with the IC50 group, the cells apoptosis and ROS fluorescence intensity were significantly decreased (P <0.01), and the expressions of Nrf-2 and HO-1 protein were significantly increased in the ov-Nrf-2+IC50 group (P <0.01).

Conclusion: P-coumaric acid can inhibit the proliferation of MM.1s cells and may target the Nrf-2/HO-1 signaling pathway to affect oxidative stress in MM cells thereby inducing their apoptosis.

题目: 基于氧化应激的对香豆酸对多发性骨髓瘤细胞凋亡的影响.

目的: 探讨对香豆酸对多发性骨髓瘤细胞凋亡的影响及相关作用机制。.

方法: 选择多发性骨髓瘤细胞MM.1s,以不同浓度对香豆酸(0、0.4、0.8、1.6、3.2 mmol/L)作用于MM.1s细胞,采用CCK-8法检测细胞抑制率及半数抑制浓度(IC50);并以1/2 IC50、IC50、2 IC50及转染ov-Nrf-2、ov-Nrf-2+IC50作用于MM.1s细胞,采用流式细胞术检测细胞凋亡、ROS荧光强度及线粒体膜电位;采用蛋白质印迹法(Western blot)检测细胞Nrf-2、HO-1蛋白相对表达量。.

结果: 对香豆酸以剂量依赖性方式抑制MM.1s细胞的增殖(r =0.997),其IC50值为2.754 mmol/L;与对照组相比,1/2 IC50组、IC50组、2 IC50组、ov-Nrf-2+IC50组细胞凋亡及ROS荧光强度均明显增加(P <0.01),IC50组、2 IC50组Nrf-2、HO-1蛋白表达均明显降低(P <0.05);与IC50组相比,ov-Nrf-2+IC50组细胞凋亡、ROS荧光强度明显降低(P <0.01),Nrf-2、HO-1蛋白表达明显升高(P <0.01)。.

结论: 对香豆酸能抑制MM.1s细胞增殖,可能靶向Nrf-2/HO-1信号通路影响MM细胞氧化应激从而诱导细胞凋亡。.

Keywords: multiple myeloma; Oxidative stress; P-coumaric acid; cell apoptosis.

Publication types

  • English Abstract

MeSH terms

  • Apoptosis
  • Cell Line, Tumor
  • Humans
  • Multiple Myeloma*
  • Oxidative Stress
  • Reactive Oxygen Species / metabolism
  • Reactive Oxygen Species / pharmacology

Substances

  • p-coumaric acid
  • Reactive Oxygen Species