ArticleFrontiers in cell and developmental biology2025
Comparative transcriptomic and genomic analysis of tumor cells in the marginal and center regions of tumor nests in human hepatocellular carcinoma.
Article in Frontiers in cell and developmental biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Molecular mechanisms and clinical significance of the glioma metabolic-immune axis: a comprehensive review.Frontiers in immunology · 2026Review
- The translational paradox of AI in hepatocellular carcinoma: from algorithmic over-engineering to real-world clinical utility.Frontiers in oncology · 2026Review
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6 authors.
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Abstract
Background: The tumor nests in solid tumors, including hepatocellular carcinoma (HCC), possess tumor-initiating potential, with the capacity to metastasize and form new metastatic lesions. However, the biological characteristics and heterogeneity of tumor cells at the central and marginal regions of these tumor nests remain poorly understood. Method: Based on pathological tissue sections, data integration and dimensionality reduction, we defined the boundaries and centers of tumor nests and fibrous nodules within 19 spatial transcriptomics (ST) samples from 8 HCC patients. Differential gene expression was analyzed at the single-unit, sample, patient, and pseudobulk levels, followed by Gene Ontology (GO) enrichment analysis. Additionally, spatial copy number variation (CNV) was inferred using inferCNV, and comparisons were made at the single-unit, sample, patient, and pseudobulk levels. Results: Ultimately, 24 tumor nests and 15 liver fibrosis nodules were analyzed. The spatial gene expression patterns of the tumor nests exhibited significant heterogeneity, with gene enrichment analysis revealing upregulation of immune-related pathways (e.g., humoral immune response mediated by circulating immunoglobulin; B cell receptor signaling pathway, etc.) at the tumor nest margins and growth/metabolism-related pathways (e.g., sulfur amino acid metabolic process; proteinogenic amino acid metabolic process, etc.) within the tumor nest center. Similar expression patterns were also observed in liver fibrous nodule samples. CNV and clustering analyses demonstrated transcriptional differences between tumor nests within individual patients, suggesting the evolutionary diversity, or heterogeneity, of tumor nests within the same tumor. Conclusion: Tumor nests exhibit significant transcriptional differentiation along spatial axes: the central regions show high expression of metabolism-related genes, while the marginal regions are enriched in immune-regulatory genes. This pattern is also observed in liver fibrotic nodules. This center-margin functional division may inform rational design of therapeutics that simultaneously modulate metabolism and immune responses.
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