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济宁医学院附属医院肿瘤科,山东 济宁 272029
谷振芳,E-mail:guzhenfang616@163.com
收稿日期:2024-05-27,
纸质出版日期:2025-04-25
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胡东玉,李慧,杨东等.circ-0058063对食管癌细胞铁死亡作用机制的研究[J].局解手术学杂志,2025,34(04):289-294.
HU Dong-yu,LI Hui,YANG Dong,et al.Mechanism of circ-0058063 on ferroptosis in esophageal cancer cells[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2025,34(04):289-294.
胡东玉,李慧,杨东等.circ-0058063对食管癌细胞铁死亡作用机制的研究[J].局解手术学杂志,2025,34(04):289-294. DOI: 10.11659/jjssx.05E024125.
HU Dong-yu,LI Hui,YANG Dong,et al.Mechanism of circ-0058063 on ferroptosis in esophageal cancer cells[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2025,34(04):289-294. DOI: 10.11659/jjssx.05E024125.
目的
2
探究circ-0058063调控ERK/MAPK信号通路对食管癌细胞铁死亡的作用机制。
方法
2
将EC9706细胞随机分为Control组、si-NC组、si-circ-0058063组和si-circ-0058063+ISO组。qRT-PCR检测食管癌组织及细胞中circ-0058063表达;CCK-8和克隆形成实验检测细胞增殖能力;检测细胞中Fe
2+
、丙二醛(MDA)、谷胱甘肽(GSH)和活性氧(ROS)水平;Western blot检测细胞中ERK/MAPK信号通路及铁死亡相关蛋白表达。
结果
2
与癌旁组织相比,食管癌组织中circ-0058063表达水平明显升高(
P
<
0.05);人食管癌细胞EC9706中circ-0058063表达水平明显高于人正常食管上皮细胞HEEC(
P
<
0.05)。与Control组相比,si-circ-0058063组细胞中circ-0058063表达水平、细胞存活率、克隆细胞数、GSH水平、p-ERK1/2/ERK1/2和p-p38MAPK/p38MAPK比值及SLC7A11、GPX4蛋白表达水平均明显降低(
P
<
0.05),细胞中Fe
2+
、MDA及ROS水平均明显增加(
P
<
0.05);与si-circ-0058063组相比,si-circ-0058063+ISO组细胞中circ-0058063表达水平、细胞存活率、克隆细胞数、GSH水平、p-ERK1/2/ERK1/2和p-p38MAPK/p38MAPK比值及SLC7A11、GPX4蛋白表达水平均明显升高(
P
<
0.05),Fe
2+
、MDA及ROS水平均明显降低(
P
<
0.05)。
结论
2
敲减circ-0058063可抑制食管癌细胞增殖,诱导食管癌细胞铁死亡,其作用机制可能与抑制ERK/MAPK信号通路激活有关。
Objective
2
To investigate the mechanism of action of circ-0058063 regulating ERK/MAPK signaling pathway on ferroptosis in esophageal cancer cells.
Methods
2
EC9706 cells were randomly divided into the Control group, the si-NC group, the si-circ-0058063 group, and the si-circ-0058063+ISO
group. qRT-PCR was used to detect the expression of circ-0058063 in esophageal cancer tissues and cells; CCK-8 and clone formation assay were used to detect the cell proliferation ability. The levels of Fe
2+
, malondialdehyde (MDA), glutathione (GSH), and reactive oxygen species (ROS) in cells were detected. Western blot was used to detect the ERK/MAPK signaling pathway and the expression of ferroptosis-related protein in cells.
Results
2
The expression level of circ-0058063 in esophageal cancer tissue was significantly higher than that in adjacent tissues (
P
<
0.05); the expression level of circ-0058063 in human esophageal cancer cell EC9706 was significantly higher than that in human normal esophageal epithelial cell HEEC (
P
<
0.05). Compared with the Control group, the expression level of circ-0058063 in cells, cell survival rate, number of cloned cells, GSH level, ratios of p-ERK1/2/ERK1/2 and p-p38MAPK/p38MAPK, as well as the expression levels of SLC7A11 and GPX4 protein in the si-circ-0058063 group were significantly reduced (
P
<
0.05), while the levels of Fe
2+
, MDA, and ROS in cells were significantly increased (
P
<
0.05). Compared with the si-circ-0058063 group, the expression level of circ-0058063 in cells, cell survival rate, number of cloned cells, GSH level, ratios of p-ERK1/2/ERK1/2 and p-p38MAPK/p38MAPK, as well as the expression levels of SLC7A11 and GPX4 protein in the si-circ-0058063+ISO group were significantly increased (
P
<
0.05), while the levels of Fe
2+
, MDA, and ROS in cells were significantly decreased (
P
<
0.05).
Conclusion
2
Knockdown of circ-0058063 can inhibit the proliferation of esophageal cancer cells and induce ferroptosis, and its mechanism of action may be related to the inhibition of ERK/MAPK signaling pathway activation.
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