文献类型：期刊文献

英文题名：Thiostrepton confers protection against reactive oxygen species-related apoptosis by restraining FOXM1-triggerred development of gastric cancer*

作者：Liu, Shi-Xiong[1];Zhou, Yun[1];Zhao, Li[2];Zhou, Ling -Shan[1];Sun, Jie;Liu, Ge-Jing[3];Du, Ying-Shi[3];Zhou, Yong-Ning[4,5]

第一作者：Liu, Shi-Xiong

通信作者：Zhou, YN[1]

机构：[1]Lanzhou Univ, Dept Geriatr 2, Hosp 1, Lanzhou 730000, Peoples R China;[2]Gansu Univ Tradit Chinese Med, Dept Med Ultrasound, Affiliated Hosp, Lanzhou 730020, Peoples R China;[3]Lanzhou Univ, Dept Geriatr 1, Hosp 1, Lanzho 730000, Peoples R China;[4]Lanzhou Univ, Dept Gastroenterol, Hosp 1, Lanzhou 730000, Peoples R China;[5]Lanzhou Univ, Dept Gastroenterol, Hosp 1, 1 Donggangxi Rd, Lanzhou 730000, Gansu, Peoples R China

第一机构：Lanzhou Univ, Dept Geriatr 2, Hosp 1, Lanzhou 730000, Peoples R China

通信机构：[1]corresponding author), Lanzhou Univ, Dept Gastroenterol, Hosp 1, 1 Donggangxi Rd, Lanzhou 730000, Gansu, Peoples R China.

年份：2022

卷号：193

起止页码：385

外文期刊名：FREE RADICAL BIOLOGY AND MEDICINE

收录：;Scopus(收录号：2-s2.0-85143379735);WOS:【SCI-EXPANDED(收录号:WOS:000879906600002)】；

基金：This work was supported by (1) 2020 Gansu Province Health Industry Research Project (GSWSKY2020-12); and (2) Intra-Hospital Fund of the First Hospital of Lanzho University (LDYYYN2019-52).

语种：英文

外文关键词：Gastric cancer; FOXM1; Thiostrepton (THIO); Tumor growth and metastasis; Chemoresistance

摘要：Gastric cancer is a leading cause of tumor-associated death worldwide. Metastasis and chemoresistance are crucial barriers for gastric cancer treatment. The Forkhead Box M1 (FOXM1) transcription factor has been re-ported as a promising treatment target for various types of tumors, but its effects on gastric cancer progression are not fully understood. In the present study, we found that FOXM1 expression levels were significantly up -regulated in human gastric cancer cell lines and tissues, and its expression was much higher in patients with metastasis. We then found that suppressing FOXM1 with its inhibitor thiostrepton (THIO) significantly reduced the proliferation of gastric cancer cells, while induced G0/G1 and apoptosis. Moreover, reactive oxygen species (ROS) production, mitochondrial impair and autophagy were remarkably provoked in gastric cancer cells treated with THIO, which were required for the regulation of apoptotic cell death. Furthermore, THIO exposure considerably suppressed the migration, invasion and angiogenesis in gastric cancer cells. The inhibitory effects of THIO on tumor growth and metastasis were confirmed in an established gastric cancer xenograft mouse model without detectable toxicity. Intriguingly, our in vitro studies showed that the anti-cancer effects of THIO on gastric cancer were almost abolished upon FOXM1 over-expression, indicating the necessity of FOXM1 sup-pression in THIO-inhibited tumor growth. In addition, higher FOXM1 expression was detected in gastric cancer cells with chemoresistance. Both in vitro and in vivo studies illustrated that THIO strongly promoted the drug -resistant gastric cancer cells to chemotherapies, proved by the considerably decreased cell proliferation and epithelial-mesenchymal transition (EMT) process. Together, these findings revealed that FOXM1 was a promising therapeutic target for gastric cancer treatment, and THIO exerted potential as an therapeutic agent for the disease.