Work

Identification of necroptosis-associated mRNA biomarkers in kidney clear cell carcinoma

Year: 2025

Type: article

Abstract: Introduction Kidney clear cell carcinoma (KIRC) is the most common subtype of renal malignancy with a high mortality rate. It is difficult to treat and often leads to death due to its genomic heterogeneity, metastatic nature, and limited effectiveness of targeted and immunotherapies. Recent studies showed that the progression of KIRC is frequently accompanied by significant changes in necroptosis while these studies were limited by small gene sets, which increases the risk of missing low-expressed yet important genes. Methods This study focused on necroptosis-associated genes within the context of KIRC and performed a complete closed-loop studies by gene screening, gene expression analysis, model validation and experimental translation. Results Among screened nine core biomarkers (RIPK1, RIPK3, MLKL, CASP8, ZBP1, TLR3, PYGL, TRPM7, PGAM5), CASP8 and TRPM7 were identified as new potential biomarkers. The predictive performance of risk prognostic model for 5-year survival (AUC: 0.77 and 0.89 in training and independent/external validation cohort) outperformed prior studies by 5.5% and 17.1%, respectively. A more pronounced immune response was found with high-risk cohort, underscoring the immunosuppressive properties of tumor immune microenvironments, which evidenced by increased immune cell infiltration and elevated immunogenicity. Drug sensitivity analysis revealed that doxorubicin could serve as a promising therapeutic agent for KIRC. Furthermore, BFTC909 and CAL54 were identified as the most suitable cell lines for in vitro experimental translation, and highlighting three functionally significant target genes (CASP8, PGAM5, and CPT2). Conclusion This study offers multi-dimensional data that support novel mechanistic investigations and provide valuable insights for developing precision immunotherapy strategies in KIRC.

Source: Frontiers in Immunology

DOI: 10.3389/fimmu.2025.1545486

Authors: Xiaobo Zhang, Qiaoying Jin, Gafang Cheng, Haiyu Niu, Suping Yang, Shicheng Chen

Institutions: Lanzhou University Second Hospital, Lanzhou University, Huaqiao University, Northern Illinois University

Language: English

Topic: Ferroptosis and cancer prognosis

Subfield: Pulmonary and Respiratory Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $3,801