南方医科大学学报 ›› 2024, Vol. 44 ›› Issue (9): 1653-1661.doi: 10.12122/j.issn.1673-4254.2024.09.04

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ABI2在胃癌进展和预后中的作用及其调控机制

陈孝华1(), 鲁辉1, 王子良1, 王炼1, 夏勇生1, 耿志军2,4, 张小凤2,4, 宋雪2,4, 王月月3,4, 李静3,4, 胡建国3,4, 左芦根1,4()   

  1. 1.蚌埠医科大学第一附属医院,胃肠外科,安徽 蚌埠 233004
    2.蚌埠医科大学第一附属医院,中心实验室,安徽 蚌埠 233004
    3.蚌埠医科大学第一附属医院,检验科,安徽 蚌埠 233004
    4.炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233004
  • 收稿日期:2024-04-22 出版日期:2024-09-20 发布日期:2024-09-30
  • 通讯作者: 左芦根 E-mail:chenxiaohua9116@163.com;zuolugen@126.com
  • 作者简介:陈孝华,硕士,E-mail: chenxiaohua9116@163.com
  • 基金资助:
    安徽省卫生健康科研项目(AHWJ2022a019);蚌埠医学院第一附属医院杰出青年基金(2019byyfyjq01);安徽省高校优秀青年人才支持计划重点项目(gxyqZD2022066)

Role of Abelson interactor 2 in progression and prognosis of gastric cancer and its regulatory mechanisms

Xiaohua CHEN1(), Hui LU1, Ziliang WANG1, Lian WANG1, Yongsheng XIA1, Zhijun GENG2,4, Xiaofeng ZHANG2,4, Xue SONG2,4, Yueyue WANG3,4, Jing LI3,4, Jianguo HU3,4, Lugen ZUO1,4()   

  1. 1.Department of Gastrointestinal Surgery,
    2.Central Laboratory,
    3.Department of Laboratory Medicine, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
    4.Anhui Provincial Laboratory of Basic and Translational Research of Inflammation-Related Diseases, Bengbu 233004, China
  • Received:2024-04-22 Online:2024-09-20 Published:2024-09-30
  • Contact: Lugen ZUO E-mail:chenxiaohua9116@163.com;zuolugen@126.com

摘要:

目的 探讨Abelson相互作用因子2(ABI2)在胃癌进展和预后中的作用及机制。 方法 通过TIMER2.0和GEPIA数据库分析ABI2在泛癌和胃癌中的表达,采用Kaplan-Meier Plotter数据库分析ABI2表达水平与胃癌预后的关系,通过DAVID数据库预测ABI2在生物系统中的功能。纳入在我院于2016年1月~2018年10月接受胃癌根治术治疗的120例胃癌患者,检测胃癌及癌旁组织中ABI2的表达水平,分析其与疾病进展的联系,并通过Cox单因素和多因素分析影响患者预后的危险因素。构建胃癌细胞系(MGC-803)ABI2干扰及过表达模型并构建裸鼠移植瘤模型,联合CCK-8、划痕、Transwell和免疫印迹实验分析ABI2对胃癌细胞增殖、迁移和侵袭的影响。结合体内外研究分析ABI2影响胃癌细胞恶性生物学行为的可能分子机理。 结果 生信分析和本院胃癌组织检测结果表明ABI2在胃癌组织中高表达(P<0.05)。Kaplan-Meier Plotter数据库分析表明ABI2低表达患者的术后生存率优于高表达患者(P<0.0001)。本院患者的生存分析结果显示,胃癌组织中ABI2高表达患者术后5年生存率降低(P<0.0001),Cox单因素和多因素生存分析进一步表明,ABI2高表达是影响胃癌患者预后的独立危险因素(P=0.022,HR=1.887,95% CI:1.096~3.249)。富集分析提示,ABI2的作用可能与Wnt信号通路相关。上调ABI2促进裸鼠移植瘤和胃癌细胞的增殖能力(P<0.05),并增加Vimentin和N-cadherin的表达,同时降低E-cadherin的表达(P<0.05);下调ABI2则相反(P<0.05)。机制分析发现上调ABI2促进移植瘤组织和胃癌细胞中Wnt2和β-catenin的表达(P<0.05),下调ABI2则相反(P<0.05)。 结论 ABI2在胃癌中表达升高并影响疾病远期预后,其可能与调控Wnt信号通路进而促进胃癌细胞增殖、迁移和侵袭能力有关。

关键词: 胃癌, ABI2, 预后, 增殖, 迁移, 侵袭, Wnt信号通路

Abstract:

Objective To explore the regulatory role of Abelson interactor 2 (ABI2) in progression and prognosis of gastric cancer. Methods TIMER2.0, GEPIA, Kaplan-Meier Plotter and DAVID databases were used to analyze ABI2 expression in pan-cancer and its association with the prognosis of gastric cancer. Gastric cancer and adjacent tissues from 120 patients undergoing radical gastrectomy in our hospital between January, 2016 and October, 2018 were examined for ABI2 expression and its correlation with disease progression and prognosis. MGC-803 cell models of ABI2 knockdown and overexpression were established for observing the changes in cell proliferation, migration, and invasion, and the impact of ABI2 expression modulation on xenograft growth was evaluated in nude mice. Results Database analysis and examination of the clinical samples showed that ABI2 was highly expressed in gastric cancer tissues. Survival analysis suggested that gastric cancer patients with a high expression of ABI2 had a reduced postoperative 5-year survival rate (P<0.0001), and further Cox univariate and multivariate survival analyses indicated that a high ABI2 expression was an independent risk factor affecting the patients survival outcomes (P=0.022, HR=1.887, 95% CI: 1.096-3.249). Enrichment analysis suggested the involvement of ABI2 in Wnt signaling. In MGC-803 cells, ABI2 overexpression promoted cell proliferation and xenograft growth in nude mice, increased the expressions of vimentin and N-cadherin, and lowered E-cadherin expression, while ABI2 knockdown produced the opposite effects. Mechanistic analysis revealed that ABI2 overexpression promoted the expressions of Wnt2 and β-catenin in both MGC-803 cells and the xenografts, and their expressions were significantly lowered by ABI2 knockdown. Conclusion ABI2 is highly expressed in gastric cancer, which affects long-term prognosis of the patients, possible due to its regulatory effect on Wnt signaling to promote proliferation, migration and invasion of gastric cancer cells.

Key words: gastric cancer, ABI2, prognosis, proliferation, migration, invasion, Wnt signaling pathway