ArticleCell communication and signaling : CCS2025
Non-coding RNAs secreted by renal cancer include piR_004153 that promotes migration of mesenchymal stromal cells.
Article in Cell communication and signaling : CCS, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Article
- piR-1170 drives brain metastasis and immune evasion via WTAP-mediated m6A methylation reprogramming in triple-negative breast cancer.Molecular cancer · 2026Article
- Transfer RNA expression, modification, and derived small RNAs in cancer biology and clinical potential.Frontiers in immunology · 2026Review
- MambaCAttnGCN+: a comprehensive framework integrating MambaTextCNN, cross-attention and graph convolution network for piRNA-disease association prediction.Scientific reports · 2025Article
- piR-38,736 promotes gastric cancer cell proliferation by downregulating SMAD4 expression.Journal of molecular histology · 2025Article
- Gastric metastasis of renal cell carcinoma: features, mechanisms, and insights from existing literature.Frontiers in cell and developmental biology · 2025Review
- Circulating Serum piRNAs as Diagnostic and Prognostic Tools for Clear Cell Renal Cell Carcinoma.Cancer genomics & proteomicsArticle
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Abstract
backgroundRenal cell cancer (RCC) is the most common and highly malignant subtype of kidney cancer. Mesenchymal stromal cells (MSCs) are components of tumor microenvironment (TME) that influence RCC progression. The impact of RCC-secreted small non-coding RNAs (sncRNAs) on TME is largely underexplored. Here, we comprehensively analysed the composition of exosomal sncRNAs secreted by RCC cells to identify those that influence MSCs.
methodsExosomal sncRNAs secreted by RCC cells and normal kidney cells were analyzed using RNAseq, followed by qPCR validation. MSCs were treated by conditioned media (CM) derived from RCC cells and transfected with piRNA, followed by the analysis of proliferation, viability, migration and immunocytochemical detection of piRNA. Expression of MSCs genes was evaluated using microarray and qPCR. TCGA data were analyzed to explore the expression of sncRNAs in RCC tumors.
resultsRNAseq revealed 40 miRNAs, 71 tRNAs and four piRNAs that were consistently secreted by RCC cells. qPCR validation using five independent RCC cell lines confirmed that expressions of miR-10b-3p and miR-125a-5p were suppressed, while miR-365b-3p was upregulated in exosomes from RCC cells when compared with normal kidney proximal tubules. The expression of miR-10b-3p and miR-125a-5p was decreased, whereas the expression of miR-365b-3p was increased in RCC tumors and correlated with poor survival of patients. Expressions of tRNA-Glu, tRNA-Gly, and tRNA-Val were the most increased, while tRNA-Gln, tRNA-Leu, and tRNA-Lys were top decreased in RCC exosomes when compared with normal kidney cells. Moreover, hsa_piR_004153, hsa_piR_016735, hsa_piR_019521, and hsa_piR_020365 were consistently upregulated in RCC exosomes. piR_004153 (DQ575660.1; aliases: hsa_piRNA_18299, piR-43772, piR-hsa-5938) was the most highly expressed in exosomes from RCC cells when compared with normal kidney cells. Treatment of MSCs with RCC CM resulted in upregulation of piR_004153 expression. Transfection of MSCs with piR_004153 stimulated their migration and viability, and altered expression of 35 genes, including downregulation of FGF2, SLC7A5, and WISP1. Immunocytochemistry confirmed the nuclear localization of piR_004153 transfected in MSCs.
conclusionRCC cells secrete multiple sncRNAs, including piR_004153 which targets MSCs, alters expression of FGF2, SLC7A5, and WISP1, and stimulates their motility and viability. To our knowledge, this is the first study showing that cancer-derived piRNA can enhance MSC migration.
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