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青海红十字医院乳腺外科,西宁 810000
副主任医师。研究方向:乳腺肿瘤的相关治疗。E-mail:yangkuang05743@163.com
收稿日期:2025-05-06,
修回日期:2025-07-28,
录用日期:2025-07-29,
纸质出版日期:2025-08-30
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白文辉,李英,李宗龙.柚皮苷通过cGAS-STING信号通路对乳腺癌细胞增殖、凋亡和免疫逃逸的影响[J].中国药房,2025,36(16):2012-2016.
BAI Wenhui,LI Ying,LI Zonglong.Effects of naringin on the proliferation, apoptosis and immune escape of breast cancer cells through cGAS-STING signaling pathway[J].ZHONGGUO YAOFANG,2025,36(16):2012-2016.
白文辉,李英,李宗龙.柚皮苷通过cGAS-STING信号通路对乳腺癌细胞增殖、凋亡和免疫逃逸的影响[J].中国药房,2025,36(16):2012-2016. DOI: 10.6039/j.issn.1001-0408.2025.16.10.
BAI Wenhui,LI Ying,LI Zonglong.Effects of naringin on the proliferation, apoptosis and immune escape of breast cancer cells through cGAS-STING signaling pathway[J].ZHONGGUO YAOFANG,2025,36(16):2012-2016. DOI: 10.6039/j.issn.1001-0408.2025.16.10.
目的
2
探讨柚皮苷通过环鸟苷酸-腺苷酸合酶(cGAS)-干扰素基因刺激因子(STING)信号通路对乳腺癌细胞增殖、凋亡和免疫逃逸的影响。
方法
2
将人乳腺癌细胞系MDA-MB-231分为空白组,柚皮苷低、中、高剂量组(50、100、200 μmol/L),RU.521组(cGAS抑制剂,1 μmol/L)、柚皮苷高剂量+RU.521组(200 μmol/L柚皮苷+1 μmol/L RU.521),各组细胞用相应药液分别处理48 h后,检测MDA-MB-231细胞的增殖[以5-乙炔基-2′-脱氧尿嘧啶核苷(EdU)阳性率和光密度(OD
450
)值计
]
、凋亡情况,以及细胞中增殖细胞核抗原(PCNA)、p53、B7同源物1(B7H1)、程序性死亡受体1(PD-1)、cGAS、STING蛋白表达水平。除空白组外,将上述各组MDA-MB-231细胞分别经相应药物处理48 h后,再与NK细胞共孵育48 h,检测共孵育体系上清液中颗粒酶B、肿瘤坏死因子α(TNF-α)、γ干扰素(IFN-γ)水平以及NK细胞的杀伤力。
结果
2
与空白组比较,柚皮苷各剂量组MDA-MB-231细胞的EdU阳性率、OD
450
值和PCNA、B7H1、PD-1蛋白表达水平均显著降低,细胞凋亡率和p53、cGAS、STING蛋白表达水平均显著升高(
P
<0.05);RU.521组MDA-MB-231细胞上述指标的变化情况与柚皮苷各剂量组相反(
P
<0.05)。与空白+NK组比较,经不同浓度柚皮苷处理后的MDA-MB-231细胞与NK细胞共孵育体系上清液中颗粒酶B、TNF-α、IFN-γ水平及NK细胞杀伤力均显著升高(
P
<0.05),而经RU.521处理后的共孵育体系中的上述指标均显著降低(
P
<0.05)。
结论
2
柚皮苷可通过激活cGAS-STING信号通路来抑制MDA-MB-231细胞增殖、免疫逃逸,诱导其凋亡。
OBJECTIVE
2
To explore the effects of naringin on the proliferation, apoptosis and immune escape of breast cancer cells through the cyclic GMP-AMP synthase (cGAS)-stimulator of interferon gene (STING) signaling pathway.
METHODS
2
The human breast cancer cell line MDA-MB-231 was divided into blank group, naringin low-, medium-, and high-dose groups (50, 100 and 200 μmol/L), RU.521 group (cGAS inhibitor, 1 μmol/L) and high-dose naringin+RU.521 group (200 μmol/L naringin+1 μmol/L RU.521). After each group of cells was treated with their respective drug solutions for 48 h, the proliferation of MDA-MB-231 cells [measured by the positive rate of 5-ethynyl-2′-deoxyuridine (EdU) and the value of optical density (OD
450
)
]
, apoptosi
s status, as well as the protein expression levels of proliferating cell nuclear antigen (PCNA), p53, B7 homolog 1 (B7H1), programmed death-1 (PD-1), cGAS, and STING in the cells were measured. The MDA-MB-231 cells of the above groups were treated with corresponding drugs for 48 h respectively, and then co-incubated with NK cells for 48 h except blank group. The levels of granzyme B, tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ) in the supernatant of the co-incubation system and the killing power of NK cells were detected.
RESULTS
2
Compared with the blank group, the EdU positive rate, OD
450
value, and protein expression levels of PCNA, B7H1 and PD-1 in MDA-MB-231 cells of each dose group of naringin were significantly decreased, while the apoptotic rate and protein expression levels of p53, cGAS, and STING were significantly increased (
P
<0.05). The changes of the above indicators in the MDA-MB-231 cells of the RU.521 group were opposite to those in each naringin dose group (
P
<0.05). Compared with the blank+NK group, the levels of granzyme B, TNF-α, IFN-γ and the killing power of NK cells in the supernatant of the co-incubation system of MDA-MB-231 cells treated with different concentrations of naringin and NK cells were significantly increased (
P
<0.05). However, the above indicators in the co-incubation system of MDA-MB-231 cells treated with RU.521 and NK cells were significantly decreased (
P
<0.05).
CONCLUSIONS
2
Naringin can inhibit the proliferation and immune escape of MDA-MB-231 cells and induce their apoptosis by activating the cGAS-STING signaling pathway.
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