|本期目录/Table of Contents|

[1]杨淑婷,赵猛.环指蛋白14调控乳酸代谢抑制肺腺癌的机制研究[J].天津医科大学学报,2025,31(04):300-307.[doi:10.20135/j.issn.1006-8147.2025.04.0300]
 YANG Shuting,ZHAO Meng.Ring finger protein 14 suppresses the progression of lung adenocarcinoma by regulating lactate metabolism[J].Journal of Tianjin Medical University,2025,31(04):300-307.[doi:10.20135/j.issn.1006-8147.2025.04.0300]
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环指蛋白14调控乳酸代谢抑制肺腺癌的机制研究(PDF)

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

卷:
31卷
期数:
2025年04期
页码:
300-307
栏目:
肿瘤疾病专题
出版日期:
2025-07-10

文章信息/Info

Title:
Ring finger protein 14 suppresses the progression of lung adenocarcinoma by regulating lactate metabolism
文章编号:
1006-8147(2025)04-0300-08
作者:
杨淑婷赵猛
(天津医科大学肿瘤医院检验科,国家恶性肿瘤临床医学研究中心,天津市恶性肿瘤临床医学研究中心,天津市肿瘤防治重点实验室,天津 300060)
Author(s):
YANG Shuting ZHAO Meng
(Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital,National Clinical Research Center for Cancer, Tianjin′s Clinical Research Center for Cancer,Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060,China)
关键词:
环指蛋白14单羧酸转运蛋白肺腺癌乳酸代谢
Keywords:
RNF14 MCT1 lung adenocarcinoma lactate metabolism
分类号:
R734.2
DOI:
10.20135/j.issn.1006-8147.2025.04.0300
文献标志码:
A
摘要:
目的:探讨环指蛋白14(RNF14)对肺腺癌乳酸代谢调控及肺腺癌进展的影响。方法:通过数据库分析RNF14和单羧酸转运蛋白(MCT)1的表达及预后;通过克隆形成、CCK-8细胞活力测定、EdU-488细胞增殖检测和Transwell小室迁移实验检测RNF14对肺腺癌细胞增殖及迁移能力的影响;通过免疫共沉淀实验检测RNF14与MCT1的相互作用及其对MCT1泛素化水平的影响;通过生化方法检测乳酸与葡萄糖含量。结果:RNF14在肺腺癌组织中低表达(P<0.000 1),且高表达患者总生存率更高(P<0.000 1),而MCT1在肺腺癌组织中高表达(P<0.000 1),并与不良预后相关(P<0.000 1)。免疫共沉淀实验显示,RNF14与MCT1相互作用并介导MCT1的泛素化。与对照组相比,RNF14敲降的A549细胞中RNF14的mRNA(F=260.7,P<0.000 1)及蛋白表达水平(F=49.34,P<0.001)下降。敲低RNF14后,A549细胞克隆数明显增多(F=153.5,P<0.000 1),增殖(CCK-8:F=31.27,P<0.000 1;EdU:F=5.481,P<0.05)及迁移(F=95.52,P<0.000 1)能力显著增强。此外,RNF14敲降的A549细胞培养基中乳酸含量增加(F=40.15,P<0.000 1),葡萄糖含量减少(F=42.16,P<0.000 1)。结论:RNF14通过抑制乳酸外排进而减弱肺腺癌细胞增殖及迁移能力,抑制其进展。
Abstract:
Objective: To investigate the effect of ring finger protein 14(RNF14) on lactate metabolism regulation and progression in lung adenocarcinoma (LUAD). Methods: Bioinformatics analysis was performed to evaluate the expression and prognostic significa-nce of RNF14 and monocarboxylate transporter 1(MCT1). The effects of RNF14 on the proliferation and migration of lung adenocarcinoma cells were assessed using colony formation, CCK-8, EdU, and Transwell assays. Co-immunoprecipitation (Co-IP) was condu-cted to examine the interaction between RNF14 and MCT1, as well as its effect on the ubiquitination level of MCT1. Lactate and glucose levels were measured using biochemical assays. Results: RNF14 was significantly downregulated in LUAD tissues(P<0.000 1), and patients with high RNF14 expression exhibited a better overall survival rate (P<0.000 1). In contrast, MCT1 was markedly upregulated in LUAD tissues(P<0.000 1) and was associated with poor prognosis (P<0.000 1). Co-IP confirmed that RNF14 binded to MCT1 and promoted its ubiquitination.Compared to the control group,RNF14 knockdown in A549 cells resulted in a significant reduction in both RNF14 mRNA (F=260.7, P<0.000 1) and protein expression levels(F=49.34, P<0.001). Upon RNF14 silencing, A549 cells exhibited a marked increase in colony formation (F=153.5, P<0.000 1), enhanced proliferation (CCK-8 assay: F=31.27, P<0.000 1; EdU assay: F=5.481, P<0.05), and significantly elevated migration (F=95.52, P<0.000 1). Furthermore, the lactate content increased (F=40.15, P<0.000 1) and glucose levels decreased (F=42.16, P<0.000 1)in the culture medium of A549 cells knocked down by RNF14. Conclusion: RNF14 reduces the proliferation and migration of LUAD cells and inhibits their progressionby suppressing lactate efflux.

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备注/Memo

备注/Memo:
基金项目:国家自然科学基金项目(82372894);天津市卫健委中医中西医结合课题(2023088);天津市医学重点学科(专科)建设项目(TJYXZDXK-009A)
作者简介:杨淑婷(2000-),女,硕士在读,研究方向:医学技术;通信作者:赵猛,E-mail:zhaomeng@tmu.edu.cn。
更新日期/Last Update: 2025-07-10