ArticleDiscover oncology2024
Exploring the heterogeneity of interstitial cells of Cajal and their properties in gastrointestinal mesenchymal tumors applying single-cell RNA sequencing analysis.
Article in Discover oncology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
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4 authors.
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Abstract
backgroundGastrointestinal mesenchymal stromal tumors (GISTs) are a group of intramural tumors that exhibit a wide range of morphologies. Dysfunction or loss of interstitial cells of Cajal (ICCs) is correlated with the disorders of gastrointestinal motility. At present, the characterization and molecular mechanisms underlying the role of ICCs in GIST are still not clear.
methodsThe GSE162115 dataset from Gene Expression Omnibus database was processed using Seurat package for quality control, data normalization, and cell clustering. Differential expression and functional enrichment analyses were performed using the FindAllMarkers function and clusterProfiler package. Cellular heterogeneity was assessed by CytoTRACE and potential regulatory mechanisms of ICCs in GISTs were investigated using SCENIC. Cellular communication was inferred and analyzed applying the CellChat package.
resultsEight clusters were identified based on 34,861 cells. Intra-tumor samples had a higher proportion of ICCs than peri-tumor. ICCs were related to cell cycle and glycolytic activity in intra-tumor samples, while those in peri-tumor samples were involved in immune response. Further analysis identified four ICC subgroups (subcluster 1-4), of which subcluster 3 showed the most typical stem cell properties and interacted with the rest of the cells through the MIF-CD74 (CD44) protein.
conclusionThis study analyzed the heterogeneity and stem cell properties of ICCs in GISTs, revealing the molecular mechanisms and potential therapeutic targets for GISTs.
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