Evidence map›Paper›PMID 41257951›Full record

ArticleHuman genomics2025

Potential involvement of the KLF2-GPX4 axis in ferroptosis during S.aureus-induced osteomyelitis.

Jian Sun, Xingbo Cai, Junhui Qi, Hao Xia, Qilin Zhao, Zhe Yin, Yi Cui, Yongqing Xu

Abstract read
In one paragraph

Article in Human genomics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Jian SunDepartment of Orthopedics, 920th Hospital of Joint Logistics Support Force, 212 Daguan Road, Xishan District, Kunming, 650032, People's Republic of China.
Xingbo CaiDepartment of Orthopedics, 920th Hospital of Joint Logistics Support Force, 212 Daguan Road, Xishan District, Kunming, 650032, People's Republic of China.
Junhui QiDepartment of Orthopedics, 920th Hospital of Joint Logistics Support Force, 212 Daguan Road, Xishan District, Kunming, 650032, People's Republic of China.
Hao XiaDepartment of Orthopedics, 920th Hospital of Joint Logistics Support Force, 212 Daguan Road, Xishan District, Kunming, 650032, People's Republic of China.
Qilin ZhaoDepartment of Orthopedics, 920th Hospital of Joint Logistics Support Force, 212 Daguan Road, Xishan District, Kunming, 650032, People's Republic of China.
Zhe YinDepartment of Orthopedics, 920th Hospital of Joint Logistics Support Force, 212 Daguan Road, Xishan District, Kunming, 650032, People's Republic of China.
Yi CuiDepartment of Orthopedics, 920th Hospital of Joint Logistics Support Force, 212 Daguan Road, Xishan District, Kunming, 650032, People's Republic of China. cuiyi1103@sina.com.
Yongqing XuDepartment of Orthopedics, 920th Hospital of Joint Logistics Support Force, 212 Daguan Road, Xishan District, Kunming, 650032, People's Republic of China. xuyongqing@kmmu.edu.cn.

Funding

Yunnan Provincial Basic Research Program Project 202101AY070001-295Yunnan Provincial Clinical Orthopedic Trauma Medical Center ZX20191001
6 · The paper itself

Abstract

backgroundIncreasing evidence suggests that ferroptosis plays a pivotal role in Staphylococcus aureus (S. aureus)-induced osteomyelitis. However, the regulatory mechanisms underlying ferroptosis-related genes (FRGs) in osteomyelitis remain poorly understood. This study aimed to identify key FRGs and elucidate their regulatory roles in osteomyelitis.

methodsKey FRGs were identified using least absolute shrinkage and selection operator (LASSO) logistic regression and support vector machine-recursive feature elimination (SVM-RFE) algorithms based on transcriptomic data from the Gene Expression Omnibus (GEO) database. Bone marrow mesenchymal stromal cells (BMSCs) were isolated, characterized, and infected with S. aureus protein A (SpA) to construct an in vitro model. Cell viability, osteogenic differentiation, inflammation, and gene expression were assessed using Cell Counting Kit-8 (CCK-8), Alizarin Red S staining, enzyme-linked immunosorbent assay (ELISA), and quantitative reverse transcription polymerase chain reaction (qRT-PCR). In vivo, a mouse model of S. aureus-induced osteomyelitis was established, and the role of KLF2 was examined by micro-computed tomography (micro-CT), ELISA, histological staining, immunohistochemistry, immunofluorescence, and qRT-PCR.

resultsA total of 683 differentially expressed FRGs were identified. Ten candidate biomarkers were screened using LASSO and SVM-RFE, of which TXN, KLF2, HSPA8, CCT3, and AKR1C3 were consistently validated across training and validation datasets. These genes were associated with immune regulation, protein synthesis, and multiple ribosome- and metabolism-related pathways. In vitro, SpA treatment increased inflammation response, reduced BMSC proliferation and osteogenic differentiation, upregulated HSPA8, TXN, and CCT3, and downregulated KLF2 and its putative downstream target GPX4. In vivo, KLF2 overexpression alleviated S. aureus-induced bone loss, inflammation, and ferroptosis, while promoting angiogenesis and osteogenesis, in part through modulation of GPX4.

conclusionThis study highlights KLF2 as a potential protective factor in S. aureus-induced osteomyelitis, possibly by regulating GPX4 and ferroptosis.

Indexed as

FerroptosisKruppel-Like Transcription FactorsOsteomyelitisStaphylococcal InfectionsStaphylococcus aureusAnimalsCell DifferentiationDisease Models, AnimalHumansMesenchymal Stem CellsMiceOsteogenesisKlf2 protein, mouseKruppel-Like Transcription FactorsBioinformatics analysisFerroptosisGPX4KLF2OsteomyelitisStaphylococcus aureus

Identifiers

PMID41257951
PMCPMC12628881

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.