Abstract
Despite extensive multi-omics studies on squamous cell carcinomas (SCCs) across different organs, the shared transcriptional regulatory mechanisms that driving SCC remain unclear. This study systematically identified common and distinct transcriptomic alterations in SCCs, highlighting key genes and pathways with prognostic and therapeutic relevance. By integrating large-scale gene expression data from SCC tumors and adjacent normal tissues, we revealed dysregulated gene expression patterns (DGEPs) and quantified their similarity across SCCs through correlation and regression analyses. Gene co-expression network analysis identified SCC-associated modules and hub genes, whose biological and clinical significance was further explored through subtype analysis and prognostic modeling. Our findings show that SCCs from the head and neck, esophagus, and cervix share highly similar DGEPs and regulatory networks, whereas lung and skin SCCs exhibit more distinct molecular characteristics. Key processes such as epithelial-mesenchymal transition, extracellular matrix remodeling, and immune-related pathways were strongly linked to SCC prognosis. Moreover, a six-gene prognostic signature (COL1A1, MMP1, SERPINE1, KRT6A, IGF2BP3, and SPP1) demonstrated robust predictive power for clinical outcomes and therapy response. These findings provide insights into SCC progression and potential therapeutic targets.
Data and codes availability
All data used in this study can be downloaded from the public database. Raw gene expression microarray data can be downloaded from GEO database, accession numbers are recorded in Table S1. Raw RNA-seq data can be download from ENA (accession numbers are recorded in Table S2). Gene expression data matrix of tumor samples and clinical messages of SCC patients can be downloaded from TCGA (Projects of TCGA-ESCA, TCGA-CESC, TCGA-HNSC) database and GEO database (accession number: GSE5362575). Data Table S1–S4, preprocessed data and code required to reproduce the analyses presented in this study are publicly available at https://github.com/WangDanke/Shared_DGEP_SCCs. The repository contains comprehensive scripts covering raw data preprocessing, downstream analyses, and figure generation, as well as the finalized processed data matrices used in key analyses.
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Acknowledgements
Thanks to the efforts of all people involved in this work. Thanks to the GEO, ENA and TCGA databases for providing valuable datasets.
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We acknowledge financial supports from the National Natural Science Foundation of China (grant numbers: 82073637, 82122060, 82473700), Science and Technology Innovation 2030 Major Projects (grant number: 2023ZD0510000), National Key Research and Development program of China (grant number: 2023YFC2508001), Shanghai Municipal Science and Technology Major Project (grant numbers: ZD2021CY001, 2023SHZDZX02).
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Conceptualization: X.C., D.W., X.L.Methodology: D.W., X.L., J.Z., Y.H., P.G., C.S., X.C.Data collection and analysis: D.W.Supervision: X.C., C.S.Writing—original draft: D.W.Writing—review & editing: D.W., X.L., J.Z., Y.H., P.G., Y.L., YZ., C.S., X.C.
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Wang, D., Li, X., Zhou, J. et al. Shared patterns of dysregulated gene expression across squamous cell carcinomas unveil predictors for prognosis and drug sensitivity. Sci Rep (2026). https://doi.org/10.1038/s41598-026-41052-x
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DOI: https://doi.org/10.1038/s41598-026-41052-x