ArticleClinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico2025
Diverse RNA methylation patterns in neutrophils: key drivers in hepatocellular carcinoma.
Article in Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 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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Abstract
backgroundNeutrophils, crucial in the immune system, have recently been implicated in promoting malignancy. RNA methylation, an essential epigenetic feature, plays a key role in tumor microenvironment (TME) reprogramming. However, the relationship between neutrophils and RNA methylation in hepatocellular carcinoma (HCC) remains unclear.
methodsWe analyzed single-cell sequencing data from HCC, focusing on cell subtype and TME construction. RNA methylation "writers" were selected, and their expression in neutrophils was evaluated. Two neutrophil subtypes (high/low RNA methylation) were identified. Differentially expressed genes (DEGs) between these subtypes were confirmed, leading to the identification of 6 molecular subtypes via consensus clustering. A prognostic scoring system was developed using LASSO Cox regression, resulting in a novel neutrophil RNA methylation (NRM) scoring system to assess TME heterogeneity and clinical features.
resultsTRPM3, specifically expressed in HCC-infiltrating neutrophils, may regulate RNA modification in tumor pathogenesis. HCC patients were stratified into low/high-NRM score groups, further refined into an advanced NRM (a-NRM) score by incorporating lncRNA data. High a-NRM scores correlated with advanced TNM stage, higher pathological grade, and increased suppressive immune cells. A nomogram incorporating the a-NRM score demonstrated a concordance index indicative of good predictive performance.
conclusionsThe a-NRM score is a reliable predictor of prognosis and could guide treatment selection in HCC patients, enhancing clinical response to immunotherapy. TRPM3 also presents as a potential therapeutic target in HCC.
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