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- W4285594610 abstract "Abstract Tumor-initiating cells are the major drivers of chemoresistance and relapse, making them attractive targets for cancer therapy. However, the identity of tumor- initiating cells in human pancreatic ductal adenocarcinoma (PDAC) and the key molecules underlying their traits remain poorly understood. Here, we show that a partial epithelial-mesenchymal transition (EMT)-like subpopulation marked by high expression of receptor tyrosine kinase-like orphan receptor 1 (ROR1) is the origin of heterogeneous tumor cells in PDAC. We demonstrate that ROR1 depletion suppresses tumor growth, recurrence after chemotherapy, and metastasis. Mechanistically, ROR1 induces the expression of AURKB by activating E2F to enhance PDAC proliferation. Furthermore, epigenomic analyses reveal that ROR1 is transcriptionally dependent on YAP/BRD4 binding at the enhancer region, and targeting this pathway reduces ROR1 expression and prevents PDAC growth. Collectively, our findings reveal a critical role of ROR1 high cells as tumor-initiating cells and the functional importance of ROR1 in PDAC progression, thereby highlighting its therapeutic targetability. Graphical abstract" @default.
- W4285594610 created "2022-07-16" @default.
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- W4285594610 date "2022-07-14" @default.
- W4285594610 modified "2023-09-28" @default.
- W4285594610 title "ROR1 plays a critical role in pancreatic tumor-initiating cells with a partial EMT signature" @default.
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- W4285594610 doi "https://doi.org/10.1101/2022.07.13.499868" @default.
- W4285594610 hasPublicationYear "2022" @default.
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