天津医药 ›› 2026, Vol. 54 ›› Issue (1): 8-13.doi: 10.11958/20252757

• 细胞与分子生物学 • 上一篇    下一篇

穿心莲内酯调控STAT3/GPX4通路对骨髓瘤细胞增殖和凋亡的影响

赵兰君1(), 李良惠1, 马馨1, 巩娇娇1, 郑臣辉1, 石琳2,()   

  1. 1 郑州市第三人民医院血液科二病区(邮编450044)
    2 河南省中医院血液科
  • 收稿日期:2025-08-19 修回日期:2025-09-25 出版日期:2026-01-15 发布日期:2026-01-19
  • 通讯作者: E-mail:slin7085@163.com
  • 作者简介:赵兰君(1990),女,主治医师,主要从事血液病方面研究。E-mail:zlj19900719@126.com
  • 基金资助:
    河南省中医药科学研究专项课题(20-21ZY1051)

The effect of andrographolide regulating STAT3/GPX4 pathway on proliferation and apoptosis of myeloma cells

ZHAO Lanjun1(), LI Lianghui1, MA Xin1, GONG Jiaojiao1, ZHENG Chenhui1, SHI Lin2,()   

  1. 1 The Second Ward of Hematology Department, the Third People’s Hospital of Zhengzhou, Zhengzhou 450044, China
    2 Hematology Department, Henan Provincial Hospital of Traditional Chinese Medicine
  • Received:2025-08-19 Revised:2025-09-25 Published:2026-01-15 Online:2026-01-19
  • Contact: E-mail:slin7085@163.com

摘要:

目的 探讨穿心莲内酯(Andro)调控信号转导与转录激活因子3(STAT3)/谷胱甘肽过氧化物酶4(GPX4)通路对骨髓瘤细胞增殖和凋亡的影响。方法 将人多发性骨髓瘤细胞(U266细胞)分为骨髓瘤组,Andro低、中、高浓度组,Stattic(STAT3抑制剂)组,Andro高浓度+Colivelin(STAT3激活剂)组。CCK-8法、克隆形成实验检测细胞增殖;流式细胞术检测细胞凋亡;透射电镜观察细胞线粒体形态;检测细胞线粒体膜电位、亚铁离子(Fe2+)、4-羟基壬烯醛(4-HNE)、丙二醛(MDA)、还原型谷胱甘肽(GSH)水平;2',7'-二氯二氢荧光素二乙酸酯(DCFH-DA)荧光探针检测细胞活性氧(ROS)水平;Western blot检测增殖细胞核抗原(PCNA)、B淋巴细胞瘤-2基因(Bcl-2)/Bcl-2相关X蛋白(Bax)、溶质载体家族7成员11(SLC7A11)、p-STAT3、GPX4蛋白表达。结果 与骨髓瘤组比较,Andro低、中、高浓度组U266细胞线粒体均呈现明显形态学改变,OD450值、克隆形成率、线粒体膜电位、GSH水平及PCNA、Bcl-2/Bax、SLC7A11、p-STAT3/STAT3、GPX4蛋白降低,细胞凋亡率、Fe2+、4-HNE、MDA水平、ROS水平升高(P<0.05);与骨髓瘤组比较,Stattic组U266细胞对应指标变化趋势与上述一致(P<0.05);Colivelin逆转了高浓度Andro对U266细胞铁死亡、凋亡的促进作用,以及对细胞增殖的抑制作用。结论 Andro可能通过抑制STAT3/GPX4通路诱导铁死亡,进而抑制多发性骨髓瘤细胞增殖并促进凋亡。

关键词: 穿心莲内酯, 多发性骨髓瘤, 铁死亡, 细胞增殖, 细胞凋亡, STAT3转录因子, 磷脂氢过氧化物谷胱甘肽过氧化物酶

Abstract:

Objective To investigate the effect of andrographolide (Andro) on the proliferation and apoptosis of myeloma cells by regulating the signal transducer and activator of transcription 3 (STAT3)/glutathione peroxidase 4 (GPX4) pathway. Methods Human multiple myeloma U266 cells were divided into the myeloma group, the Andro low-concentration group, the Andro medium-concentration group, the Andro high-concentration group, the Stattic (STAT3 inhibitor) group and the Andro high-concentration + Colivelin (STAT3 activator) group. Cell proliferation was detected by CCK-8 assay and clone formation assay. Cell apoptosis was detected by flow cytometry. Mitochondrial morphology was observed by transmission electron microscopy. The levels of mitochondrial membrane potential, ferrous ion (Fe2+), 4-hydroxynonenal (4-HNE), malondialdehyde (MDA) and reduced glutathione (GSH) in cells were detected. The level of reactive oxygen species (ROS) in cells was detected by 2',7'-dichlorodihydrofluorescein diacetate (DCFH-DA) fluorescent probe. Western blot assay was used to detect the proteins including proliferating cell nuclear antigen (PCNA), B-cell lymphoma-2 (Bcl-2)/Bcl-2 associated X protein (Bax), solute carrier family 7 member 11 (SLC7A11), p-STAT3 and GPX4. Results Compared with the myeloma group, the mitochondria of U266 cells showed significant morphological changes in the Andro low-, medium- and high-concentration groups, the OD450 value, clone formation rate, mitochondrial membrane potential, GSH level, and the protein levels of PCNA, Bcl-2/Bax, SLC7A11, p-STAT3/STAT3 and GPX4 were decreased, the cell apoptosis rate, the levels of Fe2+, 4-HNE, MDA and ROS were increased (P<0.05). Compared with the myeloma group, the changes in the corresponding indexes of U266 cells showed the same trend as above in the Stattic group (P<0.05). Colivelin reversed the promoting effect of high-concentration Andro on ferroptosis and apoptosis of U266 cells, as well as the inhibitory effect on cell proliferation. Conclusion Andro may induce ferroptosis by inhibiting the STAT3/GPX4 pathway, thereby inhibiting the proliferation and promoting the apoptosis of multiple myeloma cells.

Key words: andrographolide, multiple myeloma, ferroptosis, cell proliferation, apoptosis, STAT3 transcription factor, phospholipid hydroperoxide glutathione peroxidase

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