|本期目录/Table of Contents|

[1]王丽,张维,张俊农.重金属锑通过类雌激素效应促进子宫内膜癌细胞增殖的机制研究[J].天津医科大学学报,2025,31(06):491-496.[doi:10.20135/j.issn.1006-8147.2025.06.0491]
 WANG Li,ZHANG Wei,ZHANG Junnong.Study on the mechanism of heavy metal antimony promoting the proliferation of endometrial cancer cells by exerting estrogen-like effects[J].Journal of Tianjin Medical University,2025,31(06):491-496.[doi:10.20135/j.issn.1006-8147.2025.06.0491]
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重金属锑通过类雌激素效应促进子宫内膜癌细胞增殖的机制研究(PDF)

《天津医科大学学报》[ISSN:1006-8147/CN:12-1259/R]

卷:
31卷
期数:
2025年06期
页码:
491-496
栏目:
肿瘤疾病专题
出版日期:
2025-11-20

文章信息/Info

Title:
Study on the mechanism of heavy metal antimony promoting the proliferation of endometrial cancer cells by exerting estrogen-like effects
文章编号:
1006-8147(2025)06-0491-06
作者:
王丽1张维2张俊农1
(天津医科大学第二医院1.产科,2.设备物资科,天津 300211)
Author(s):
WANG Li1 ZHANG Wei2 ZHANG Junnong1
(1. Department of Obstetrics, 2. Equipment and Supplies Office, The Second Hospital of Tianjin Medical University, Tianjin 300211, China)
关键词:
子宫内膜癌低剂量锑类雌激素效应细胞增殖
Keywords:
endometrial cancerlow-dose antimonyestrogen-like effectscell proliferation
分类号:
R711.74
DOI:
10.20135/j.issn.1006-8147.2025.06.0491
文献标志码:
A
摘要:
目的:探讨重金属锑对子宫内膜癌细胞增殖的影响,并揭示其促瘤调控机制。方法:将子宫内膜癌细胞AN3CA分为空白对照(Cont.)组、酒石酸钾(PTH)组和酒石酸锑钾(PAT)组;采用MTT及Edu试验检测不同浓度的PAT处理后子宫内膜癌细胞AN3CA的增殖能力;划痕实验及Transwell检测揭示子宫内膜癌细胞AN3CA的侵袭、迁移能力;通过ELISA法检测子宫内膜癌细胞AN3CA内雌激素水平。通过免疫缺陷(BALB/c)的裸鼠动物模型检测重金属锑暴露对肿瘤细胞体内增殖效应的影响,Western印迹检测雌激素受体(ER)及其下游靶点的表达情况。结果:低剂量锑(PAT, 0~20 μmol/L)暴露可显著促进子宫内膜癌细胞AN3CA的增殖,其中4 μmol/L PAT作用最强(t=26.30、4.89,均P<0.05)。低剂量锑暴露(4 μmol/L)可显著增强AN3CA细胞的侵袭和迁移能力,使Transwell穿膜细胞数增加(F=34.46,P<0.05),划痕愈合率提升2.25倍(t=26.17, P<0.05)。机制研究表明,低剂量锑暴露并未改变细胞内雌激素水平,与Cont.组相比,PAT组ER蛋白表达水平上调(F=1 081,P<0.000 1),同时,磷酸化磷脂酰肌醇3激酶(PI3K,F=1 308,P<0.000 1)、磷酸化蛋白激酶B(Akt,F= 316.6,P<0.000 1)、磷酸化哺乳动物雷帕霉素靶蛋白(mTOR,F= 4 184,P<0.000 1)表达升高。PAT暴露组肿瘤体积增长速率显著高于Cont.组及PTH暴露组(F=42.14,P<0.05)。结论:低剂量锑暴露通过类似雌激素效应,促进子宫内膜癌细胞的增殖及侵袭能力。
Abstract:
Objective: To investigate the impact of the heavy metal antimony on the proliferation of endometrial cancer cells and elucidate its pro-tumor regulatory mechanisms. Methods: Endometrial cancer cells (AN3CA) were divided into three groups: blank control(Cont.) group, potassium tartrate hemihydrate (PTH) exposure group, and potassium antimonyl tartrate (PAT) exposure group. Cell proliferation of endometrial cancer cells AN3CA was assessed using MTT and Edu assays after treatment with varying concentrations of PAT. Scratch wound healing and Transwell assays were employed to evaluate the migratory and invasive capabilities of AN3CA cells. The estrogen level in AN3CA endometrial cancer cells was measured via ELISA. A BALB/c nude mouse model was used to examine the effects of heavy metal antimony exposure on tumor cells proliferation in vivo. Western blotting was performed to analyze the expression of estrogen receptor (ER) and its downstream targets. Results: Low-dose antimony exposure (as PAT, 0-20 μmol/L) significantly promoted the proliferation of endometrial cancer cells AN3CA, with the most potent effect observed at 4 μmol/L PAT (t=26.30, 4.89, both P<0.05). Exposure to low-dose antimony (4 μmol/L) markedly enhanced the invasive and migratory capacities of AN3CA cells, evidenced by increased Transwell cell penetration (t=6.89, P<0.05) and a 2.25-fold elevation in wound healing rate (t=26.17, P<0.05). Mechanistic investigations revealed that low-dose antimony exposure did not alter intracellular estrogen levels. Compared to the Cont. group, the PAT group showed upregulation of ER protein expression (F=1 081, P<0.000 1), meanwhile, the levels of phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K) (F=1 308, P<0.0001), phospho-protein kinase B (Akt, F=316.6, P<0.000 1), and phospho-mammalian target of rapamycin (mTOR, F=4 184, P<0.000 1) were significantly elevated. The tumor volume growth rate in the PAT exposure group was significantly higher than that in the Cont. group and the PTH exposure group (F=42.14, P<0.05). Conclusion: Low-dose antimony exposure promotes the proliferation and invasion of endometrial cancer cells via estrogenlike effects.

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备注/Memo

备注/Memo:
基金项目 国家重点研发计划(2021YFC2009303); 天津市科技计划(24ZYCGCG00620)
作者简介 王丽(1982-),女,学士,住院医师,研究方向:妇产科常见病的诊疗;通信作者:张俊农,E-mail:879588622@qq.com。
更新日期/Last Update: 2025-11-20