检验医学 ›› 2022, Vol. 37 ›› Issue (4): 349-355.DOI: 10.3969/j.issn.1673-8640.2022.04.009

• 新型肿瘤标志分子研究专题 • 上一篇    下一篇

IL-8/miR-182正反馈调控轴在非小细胞肺癌中的作用机制研究

赵明娜1, 张宸梓2, 洪秋双3, 娄加陶1()   

  1. 1.上海交通大学医学院附属第一人民医院检验医学中心,上海 200080
    2.中南大学湘雅医院血液科,湖南 长沙 410008
    3.上海中医药大学附属岳阳中西医结合医院检验实验医学中心,上海 200437
  • 收稿日期:2021-11-29 修回日期:2022-03-08 出版日期:2022-04-30 发布日期:2022-06-07
  • 通讯作者: 娄加陶
  • 作者简介:娄加陶,E-mail: loujiatao@sjtu.edu.cn
    赵明娜,女,1991年生,硕士,主要从事肺癌骨转移的功能机制研究。
  • 基金资助:
    上海市自然科学基金资助项目(22ZR1450200)

Mechanism of IL-8/miR-182 positive feedback regulatory axis in non-small cell lung cancer

ZHAO Mingna1, ZHANG Chenzi2, HONG Qiushuang3, LOU Jiatao1()   

  1. 1. Clinical Laboratory Medicine Center,Shanghai General Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai 200080,China
    2. Department of Hematology,Xiangya Hospital,Central South University,Changsha 410008,Hunan,China
    3. Clinical Laboratory Medicine Center,Yueyang Hospital of Integrated Traditional Chinese and Western Medicine,Shanghai University of Traditional Chinese Medicine,Shanghai 200437,China
  • Received:2021-11-29 Revised:2022-03-08 Online:2022-04-30 Published:2022-06-07
  • Contact: LOU Jiatao

摘要:

目的 探讨白细胞介素-8(IL-8)和微小RNA-182(miR-182)在非小细胞肺癌(NSCLC)中的相互作用,及促进NSCLC细胞增殖和侵袭的机制。方法 选取NSCLC患者40例(NSCLC组),收集其术前血清样本和术中切除的癌组织及癌旁组织样本。以40名体检健康者作为正常对照组。检测血清IL-8水平和癌组织、癌旁组织miR-182表达量。采用细胞学相关实验分析miR-182和IL-8对人NSCLC细胞株A549增殖和侵袭的影响、IL-8对miR-182的调节作用,以及miR-182影响IL-8表达的信号通路。结果 NSCLC组血清IL-8水平显著高于正常对照组(P<0.01)。NSCLC患者癌组织miR-182相对表达量显著高于癌旁组织(P<0.01)。IL-8通过miR-182促进A549细胞的增殖和侵袭。IL-8通过信号转导及转录激活因子3(STAT3)上调miR-182的表达。miR-182通过调节NF-κB信号通路上调IL-8的表达。结论 NSCLC患者IL-8和miR-182均呈高表达,且通过IL-8/STAT3/miR-182/NF-κB/IL-8正反馈调控轴促进NSCLC的发生、发展。

关键词: 白细胞介素-8, 微小RNA-182, 增殖, 侵袭, 非小细胞肺癌

Abstract:

Objective To investigate the interaction between interleukin-8(IL-8) and microRNA-182(miR-182) in non-small cell lung cancer(NSCLC) and the mechanism of promoting the proliferation and migration of NSCLC. Methods A total of 40 patients with NSCLC(NSCLC group) were enrolled to collect preoperative serum samples and intraoperative cancer tissues and adjacent tissues. Another 40 healthy subjects(healthy control group) were enrolled as well. Serum IL-8 level and the expression level of miR-182 in cancer and adjacent tissues were determined. Cytological experiments were performed to analyze the effects of miR-182 and IL-8 on proliferation and migration of human NSCLC cell line A549,the regulatory effect of IL-8 on miR-182 and the signaling pathway of miR-182 affecting IL-8 expression. Results Serum IL-8 level in NSCLC group was higher than that in healthy control group(P<0.01). The relative expression of miR-182 in cancer tissues of NSCLC patients was higher than that in adjacent tissues(P<0.01). IL-8 promoted the proliferation and migration of A549 cells through miR-182. IL-8 up-regulated the expression of miR-182 through signal transducer and activator of transcription 3(STAT3). MiR-182 up-regulated IL-8 expression by regulating nuclear factor-κB(NF-κB) signaling pathway. Conclusions Both IL-8 and miR-182 are highly expressed in NSCLC patients,and the positive feedback regulatory axis of IL-8/STAT3/miR-182/NF-κB/IL-8 promotes the occurrence and development of NSCLC.

Key words: Interleukin-8, MicroRNA-182, Proliferation, Migration, Non-small cell lung cancer

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