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- W4386629006 abstract "Hepatocellular carcinoma (HCC) is largely associated with aberrant activation of Wnt/β‐catenin signaling. Nevertheless, how membrane lipid composition is altered in HCC cells with abnormal Wnt signaling remains elusive. Here, by exploiting comprehensive lipidome profiling, we unravel the membrane lipid composition of six different HCC cell lines with mutations in components of Wnt/β‐catenin signaling, leading to differences in their endogenous signaling activity. Among the differentially regulated lipids are diacylglycerol (DAG) and ceramide, which were downregulated at the membrane of HCC cells after Wnt3a treatment. DAG and ceramide enhanced Wnt/β‐catenin signaling by inducing caveolin‐mediated endocytosis of the canonical Wnt‐receptor complex, while their depletion suppressed the signaling activity along with a reduction of caveolin‐mediated endocytosis in SNU475 and HepG2 cells. Moreover, depletion of DAG and ceramide significantly impeded the proliferation, tumor growth, and in vivo migration capacity of SNU475 and HepG2 cells. This study, by pioneering plasma membrane lipidome profiling in HCC cells, exhibits the remarkable potential of lipids to correct dysregulated signaling pathways in cancer and stop abnormal tumor growth." @default.
- W4386629006 created "2023-09-13" @default.
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- W4386629006 date "2023-09-20" @default.
- W4386629006 modified "2023-10-11" @default.
- W4386629006 title "Comparative membrane lipidomics of hepatocellular carcinoma cells reveals diacylglycerol and ceramide as key regulators of Wnt/β‐catenin signaling and tumor growth" @default.
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- W4386629006 doi "https://doi.org/10.1002/1878-0261.13520" @default.
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