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Marine Depsipeptide Nobilamide I Inhibits Cancer Cell Motility and Tumorigenicity via Suppressing Epithelial-Mesenchymal Transition and MMP2/9 Expression.

Tu Cam LeSultan PulatJihye LeeGeum Jin KimHaerin KimEun-Young LeePrima F HillmanHyukjae ChoiInho YangDong-Chan OhHangun KimSang-Jip NamWilliam Fenical
Published in: ACS omega (2022)
A cyclic depsipeptide, nobilamide I ( 1 ), along with the known peptide A-3302-B/TL-119 ( 2 ), was isolated from the saline cultivation of the marine-derived bacterium Saccharomonospora sp., strain CNQ-490. The planar structure of 1 was elucidated by interpretation of 1D and 2D NMR and MS spectroscopic data. The absolute configurations of the amino acids in 1 were assigned by using the C 3 Marfey's analysis and comparing them with those of 2 based on their biosynthetic pathways. Nobilamide I ( 1 ) decreased cell motility by inhibiting epithelial-mesenchymal transition markers in A549 (lung cancer), AGS (gastric cancer), and Caco2 (colorectal cancer) cell lines. In addition, 1 modulated the expression of the matrix metalloproteinase (MMP) family (MMP2 and MMP9) in the three cell lines.
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