ArticleCancer cell international2026
TMEM105 upregulation promotes colorectal cancer malignancy: a novel prognostic biomarker potentially linked to the MYC-Ribosome biogenesis axis.
Article in Cancer cell international, 2026. 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
Transmembrane protein 105 (TMEM105 ) has recently emerged as a potential oncogenic factor in various malignancies, yet its role in colorectal cancer (CRC) remains unclear. In this study, we comprehensively investigated the expression and function of TMEM105 in CRC through an integrated in silico, ex vivo, and in vitro approach. Publicly available datasets (TCGA, GSE41328, and GSE25070) were analyzed to assess TMEM105 transcript expression and its association with clinicopathological features, followed by weighted gene co-expression network analysis to identify relevant biological pathways. The expression levels were further validated via RT‒qPCR in 25 paired CRC and adjacent non-tumorous tissues. Functional assays were performed after siRNA-mediated silencing of TMEM105 in CRC cell lines to evaluate its impact on cell viability, clonogenicity, migration, apoptosis, and pathway-specific gene expression. TMEM105 was significantly upregulated in CRC tissues, and elevated expression levels were correlated with advanced stage (stage IV) and metastasis. Co-expression analysis revealed ribosome biogenesis and MYC signaling as pathways strongly associated with TMEM105. The functional inhibition of TMEM105 reduced cell viability, impaired colony formation, suppressed migration, and promoted apoptosis, accompanied by the downregulation of the ribosomal genes RPL7 and RPS2 and a marked decrease in total protein synthesis. Collectively, these findings establish TMEM105 as a putative oncogenic driver in CRC. Our data reveal a strong correlation between TMEM105 upregulation and the modulation of ribosome biogenesis, a process known to be driven by MYC signaling, which aligns with recent mechanistic evidence in other malignancies.
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