Identification and characterization of ferroptosis-related genes in therapy-resistant gastric cancer

被引：2
作者：
Yu, Jieli [1 ]
Li, Hua [2 ]
Huang, Can [1 ]
Chen, Huoguo [1 ]
机构：
[1] Jiangxi Canc Hosp, Dept Geriatr Oncol, 519, Beijing East Rd, Nanchang 330029, Jiangxi, Peoples R China
[2] Pengze Cty Peoples Hosp, Dept Oncol, Jiujiang, Peoples R China
来源：
MEDICINE | 2024年 / 103卷 / 20期
关键词：
drug resistance; ferroptosis; gastric cancer; risk model; survival; tumor microenvironment; R-PACKAGE; EXPRESSION; PROGNOSIS; ASSOCIATIONS; PROGRESSION;
D O I：
10.1097/MD.0000000000038193
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
Therapy resistance in gastric cancer poses ongoing challenges, necessitating the identification of ferroptosis-related genes linked to overall survival for potential therapeutic insights. The purpose of the study was to identify ferroptosis-related genes contributing to therapy resistance in gastric cancer and explore their associations with overall survival. Differentially expressed ferroptosis-related genes were identified in therapy-resistant versus therapy-responsive gastric cancer patients. Hub genes were selected from these genes. Enrichment analysis focused on oxidative stress and ROS metabolism. Validation was conducted in a TCGA stomach adenocarcinoma dataset. A hub gene-based risk model (DUSP1/TNF/NOX4/LONP1) was constructed and assessed for overall survival prediction. Associations with the tumor immune microenvironment were examined using the ESTIMATE algorithm and correlation analysis. Ten hub genes were identified, enriched in oxidative stress and ROS metabolism. Validation confirmed their aberrant expressions in the TCGA dataset. The hub gene-based risk model effectively predicted overall survival. High G6PD/TNF expression and low NOX4/SREBF1/MAPK3/DUSP1/KRAS/SIRT3/LONP1 expression correlated with stromal and immune scores. KRAS/TNF/MAPK3 expression positively correlated with immune-related SREBF1/NOX4 expression. DUSP1/NOX4/SREBF1/TNF/KRAS expression was associated with immune cell infiltration. The hub gene-based risk model (DUSP1/TNF/NOX4/LONP1) shows promise as an overall survival predictor in gastric cancer. Ferroptosis-related hub genes represent potential therapeutic targets for overcoming therapy resistance in gastric cancer treatment.
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页数：13
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