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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, RESULTS. Meshes: Carcinoma, Squamous Cell, Cell Line, Tumor, Cell Movement, Esophageal Neoplasms, Esophageal Squamous Cell Carcinoma, Gene Expression Regulation, Neoplastic, Humans, Interleukin-23, Intracellular Signaling Peptides and Proteins, Membrane Proteins, Neoplasm Invasiveness, Neoplasm Metastasis, Receptor, Notch1, Receptors, Interleukin, Signal Transduction, Up-Regulation.
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Does [ IL-23 promote invasion of esophageal squamous cell carcinoma cells by activating DLL4/Notch1 signaling pathway ]? Context: To investigate the role of interlukin-23 (IL-23) in the invasion of human esophageal squamous cell carcinoma (ESCC) cells and the related mechanism. IL-23 expression in tumor and adjacent tissues from 10 ESCC patients were detected by immunohistochemistry. Real-time fluorescent PCR was used to examine the expressions of Notch1 and Foxn4 mRNAs in different concentration IL-23-treated TE-1 cells. After Notch pathway was blocked with γ-secretase inhibitor DAPT, expressions of Notch intracellular domain (NICD), Delta-like 4 (DLL4), hairy enhancer of split 1 (Hes1), matrix metalloproteinase 9 (MMP-9) in IL-23-treated TE-1 cells were measured by Western blotting. And the migration of IL-23-treated TE-1 cells was studied by TranswellTM migration assay. Compared with adjacent tissues, IL-23 was highly expressed in ESCC tissues. IL-23 treatment up-regulated significantly the expressions of NICD, DLL4, Hes1 and MMP-9 in TE-1 cells. The blockade of Notch1 pathway inhibited the expressions induced by IL-23. Migration assay revealed that IL-23 treatment significantly enhanced the migration of TE-1 cells.
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IL-23 could promote migration of human ESCC cells by activating DLL4/Notch1 signaling pathway. Final Decision: yes