PMID- 37519893 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230801 IS - 1664-8021 (Print) IS - 1664-8021 (Electronic) IS - 1664-8021 (Linking) VI - 14 DP - 2023 TI - Oxidative stress genes define two subtypes of triple-negative breast cancer with prognostic and therapeutic implications. PG - 1230911 LID - 10.3389/fgene.2023.1230911 [doi] LID - 1230911 AB - Introduction: Oxidative stress (OS)-related genes have been confirmed to be closely related to the prognosis of triple-negative breast cancer (TNBC) patients; despite this fact, there is still a lack of TNBC subtype strategies based on this gene guidance. Here, we aimed to explore OS-related subtypes and their prognostic value in TNBC. Methods: Data from The Cancer Genome Atlas (TCGA)-TNBC and Sequence Read Archive (SRA) (SRR8518252) databases were collected, removing batch effects using a combat method before analysis. Consensus clustering analysis identified two OS subtypes (clusters A and B), with cluster A showing a better prognosis. Immune infiltration characteristics were analyzed using ESTIMATE and single-sample gene set enrichment analysis (ssGSEA) algorithms, revealing higher ImmuneScore and ESTIMATEscore in cluster A. Tumor-suppressive immune cells, human leukocyte antigen (HLA) genes, and three immune inhibitors were more prevalent in cluster A. Results: An eight-gene signature, derived from differentially expressed genes, was developed and validated as an independent risk factor for TNBC. A nomogram combining the risk score and clinical variables accurately predicted patient outcomes. Finally, we also validated the classification effect of subtypes using hub markers of each subtype in the test dataset. Conclusion: Our study reveals distinct molecular clusters based on OS-related genes to better clarify the reactive oxygen species (ROS)-mediated progression and the crosstalk between the ROS and tumor microenvironment (TME) in this heterogenetic disease, and construct a risk prognostic model which could provide more support for clinical treatment decisions. CI - Copyright (c) 2023 Liu, Xu, Feng, Kahlert, Du, Torres-de la Roche, Xu, Shi and Meng. FAU - Liu, Shenting AU - Liu S AD - Department of Oncology Medicine, Hainan Cancer Hospital, Haikou, Hainan, China. FAU - Xu, He AU - Xu H AD - Department of Thyroid and Breast Surgery, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China. FAU - Feng, Ying AU - Feng Y AD - Department of Thyroid and Breast Surgery, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China. FAU - Kahlert, Ulf D AU - Kahlert UD AD - Molecular and Experimental Surgery, University Clinic for General- Visceral- Vascular- and Trans-Plantation Surgery, Medical Faculty University Hospital Magdeburg, Otto-von Guericke University Magdeburg, Germany. FAU - Du, Renfei AU - Du R AD - Molecular and Experimental Surgery, University Clinic for General- Visceral- Vascular- and Trans-Plantation Surgery, Medical Faculty University Hospital Magdeburg, Otto-von Guericke University Magdeburg, Germany. FAU - Torres-de la Roche, Luz Angela AU - Torres-de la Roche LA AD - University Hospital for Gynecology, Pius-Hospital, University Medicine Oldenburg, Carl von Ossietzky University Oldenburg, Oldenburg, Germany. FAU - Xu, Kai AU - Xu K AD - Department of Thyroid and Breast Surgery, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China. FAU - Shi, Wenjie AU - Shi W AD - Molecular and Experimental Surgery, University Clinic for General- Visceral- Vascular- and Trans-Plantation Surgery, Medical Faculty University Hospital Magdeburg, Otto-von Guericke University Magdeburg, Germany. FAU - Meng, Fanshuai AU - Meng F AD - Translational and Trauma Surgery Laboratory, University of Ulm, Ulm, Germany. LA - eng PT - Journal Article DEP - 20230713 PL - Switzerland TA - Front Genet JT - Frontiers in genetics JID - 101560621 PMC - PMC10372428 OTO - NOTNLM OT - immunotherapy OT - molecular subtype OT - oxidative stress OT - relapse-free survival OT - triple-negative breast cancer OT - tumor microenvironment COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/07/31 06:42 MHDA- 2023/07/31 06:43 PMCR- 2023/07/13 CRDT- 2023/07/31 04:41 PHST- 2023/05/29 00:00 [received] PHST- 2023/06/30 00:00 [accepted] PHST- 2023/07/31 06:43 [medline] PHST- 2023/07/31 06:42 [pubmed] PHST- 2023/07/31 04:41 [entrez] PHST- 2023/07/13 00:00 [pmc-release] AID - 1230911 [pii] AID - 10.3389/fgene.2023.1230911 [doi] PST - epublish SO - Front Genet. 2023 Jul 13;14:1230911. doi: 10.3389/fgene.2023.1230911. eCollection 2023.