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Hepatocellular carcinoma (HCC) cells undergo the epithelial–mesenchymal transition (EMT) during chemotherapy, which reduces the efficacy of doxorubicin-based chemotherapy. We investigated N1-guanyl-1,7-diaminoheptane (GC7) which inhibits eukaryotic translation initiation factor 5A2 (eIF5A2) activation; eIF5A2 is associated with chemoresistance. GC7 enhanced doxorubicin cytotoxicity in epithelial HCC...
Five new briarane type diterpenoids, dichotellides A−E (1−5), were isolated from the South China Sea gorgonian Dichotella gemmacea together with four known analogues (6−9). Compounds 1−5 represent the first examples of iodine-containing briarane type diterpenoids from nature. The structures of these diterpenoids were elucidated by spectroscopic analysis, including 1D, 2D-NMR, and HRESIMS, and the...
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