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学报
60 Journal of China Pharmaceutical University 2026, 57(1): 60 − 67
Isthmin-1 通过调控 FoxO 信号通路抑制非小细胞肺癌细胞
生长的研究
1
王俪颖 ,周 欣 ,王雪融 ,黄文斌 3**
2
1*
( 南京医科大学基础医学院药理学系, 南京 211166; 南京医科大学基础医学院病理学系, 南京 211166;
2
1
3 河南科技大学第一附属医院病理科, 洛阳 471003)
摘 要 为了探究多肽类分泌型蛋白 isthmin-1(ISM1)对非小细胞肺癌(NSCLC)细胞增殖和凋亡的影响,采用免疫组织
化学方法检测人 NSCLC 组织标本中 ISM1 的表达;在肺癌细胞中通过瞬时转染和构建稳转细胞株的方法过表达 ISM1,或者
给予重组蛋白 rISM1 处理,用 CCK-8 法评价 ISM1 对细胞生长的影响;采用转录组测序的方法,分析 rISM1 调控的细胞内信
号转导通路,并用 qRT-PCR 和 Western blot 进行验证;进一步用试剂盒检测细胞内 ROS 的水平和细胞凋亡。实验结果显示,
ISM1 在人 NSCLC 组织标本中的表达低于正常肺组织。在肺癌细胞株中过表达 ISM1 或者给予 rISM1 处理均显著抑制细胞
生长。rISM1 在细胞内主要调控 FoxO 信号通路,上调 FoxO3、FoxO1 的表达,促进 ROS 的产生和诱导细胞凋亡。研究结果
表明,ISM1 可通过调控 FoxO 信号通路抑制非小细胞肺癌细胞的生长。本研究为 NSCLC 的治疗提供了新思路。
关键词 非小细胞肺癌;isthmin-1;FoxO 信号通路;细胞凋亡;过氧化物
中图分类号 R965;Q279 文献标志码 A 文章编号 1000−5048(2026)01−0060−08
doi:10.11665/j.issn.1000−5048.2025042102
引用本文 王俪颖,周欣,王雪融,等. Isthmin-1 通过调控 FoxO 信号通路抑制非小细胞肺癌细胞生长的研究 [J]. 中国药科大学学报,2026,
57(1):60-67.
Cite this article as: WANG Liying, ZHOU Xin, WANG Xuerong, et al. Isthmin-1 suppresses the growth of non-small cell lung cancer by
regulating the FoxO signaling pathway[J]. J China Pharm Univ, 2026, 57(1): 60-67.
Isthmin-1 suppresses the growth of non-small cell lung cancer by regulating
the FoxO signaling pathway
1*
1
2
WANG Liying , ZHOU Xin , WANG Xuerong , HUANG Wenbin 3**
1 2
Department of Pharmacology, School of Basic Medical Sciences, Nanjing 211166; Department of Pathology, School of Basic
3
Medical Sciences, Nanjing 211166; Department of Pathology, the First Affiliated Hospital of Henan University of Science &
Technology, Luoyang 471003, China
Abstract This study aimed to investigate the effects of the peptide secreted protein isthmin-1 (ISM1) on the
proliferation and apoptosis of non-small cell lung cancer (NSCLC) cells. ISM1 expression in NSCLC was
detected by immunohistochemistry (IHC). ISM1 was overexpressed in lung cancer cell lines by transient
transfection of ISM1 plasmids, or establishing ISM1 overexpression stable cell lines, or by treating cells with
recombined ISM1 (rISM1). CCK-8 was used to examine cell growth. The intracellular signal transduction
pathways regulated by rISM1 were analyzed by transcriptome sequencing, and verified by qRT-PCR and Western
blot. The levels of intracellular ROS and apoptosis were further detected using the kit. The results showed that the
expression of ISM1 was decreased in human NSCLC tissue samples compared to normal lung tissue samples.
Overexpression of ISM1 or rISM1 treatment significantly suppressed the growth of lung cancer cells. RNA
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收稿日期 2025-04-21 通信作者 E-mail:wangxr@njmu.edu.cn
**
E-mail:wbhuang348912@126.com
基金项目 国家自然科学基金资助项目(No. 81972763)

