Inhibition of A549 Lung Cancer Cell Migration and Invasion by Ent-Caprolactin C via the Suppression of Transforming Growth Factor-beta-Induced Epithelial-Mesenchymal Transition
- Authors
- Kim, So Young; Shin, Myoung-Sook; Kim, Geum Jin; Kwon, Hyukbean; Lee, Myong Jin; Han, Ah-Reum; Nam, Joo-Won; Jung, Chan-Hun; Kang, Ki Sung; Choi, Hyukjae
- Issue Date
- Aug-2021
- Publisher
- MDPI
- Keywords
- caprolactin C; ent-caprolactin C; Aquimarina sp; epithelial-mesenchymal transition; A549 human lung cancer cell
- Citation
- MARINE DRUGS, v.19, no.8
- Journal Title
- MARINE DRUGS
- Volume
- 19
- Number
- 8
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82060
- DOI
- 10.3390/md19080465
- ISSN
- 1660-3397
- Abstract
- The epithelial-mesenchymal transition (EMT) of cancer cells is a crucial process in cancer cell metastasis. An Aquimarina sp. MC085 extract was found to inhibit A549 human lung cancer cell invasion, and caprolactin C (1), a new natural product, alpha-amino-epsilon-caprolactam linked to 3-methyl butanoic acid, was purified through bioactivity-guided isolation of the extract. Furthermore, its enantiomeric compound, ent-caprolactin C (2), was synthesized. Both 1 and 2 inhibited the invasion and gamma-irradiation-induced migration of A549 cells. In transforming growth factor-beta (TGF-beta)-treated A549 cells, 2 inhibited the phosphorylation of Smad2/3 and suppressed the EMT cell marker proteins (N-cadherin, beta-catenin, and vimentin), as well as the related messenger ribonucleic acid expression (N-cadherin, matrix metalloproteinase-9, Snail, and vimentin), while compound 1 did not suppress Smad2/3 phosphorylation and the expression of EMT cell markers. Therefore, compound 2 could be a potential candidate for antimetastatic agent development, because it suppresses TGF-beta-induced EMT.
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