Abstract
Epithelial–mesenchymal transition (EMT) has recently been associated with cancer invasion, metastasis, and resistance. In our previous study, we discovered nanaomycin K, a natural growth inhibitor for EMT-induced Madin Darby canine kidney (MDCK) cells, from the cultured broth of actinomycetes. However, the screening method was undeveloped, because the activity of nanaomycin K was discovered accidentally. In this study, we established a screening method by analyzing the characteristics of nanaomycin K in MDCK cells. Nanaomycin K showed the characteristic growth inhibitory activity on MDCK cells cultured under four conditions: medium containing dimethyl sulfoxide, SB431542, TGF-β, and a mixture of SB431542 and TGF-β. The activity was stronger in TGF-β-treated cells than in DMSO-treated cells. In the mixture of SB431542 and TGF-β-treated cells, the activity of nanaomycin K was suppressed. The anti-cancer agents, mitomycin C, cisplatin, and staurosporine, lacked the characteristics as that of nanaomycin K for these four treatment conditions. Since these four conditions distinguish between the effects of nanaomycin K and other anti-cancer agents in EMT-induced cells, the screening method was established. Among the 13,427 plant extracts tested, Piper betle leaf extract displayed growth inhibitory activity against EMT-induced cells. Through the purification of the extract via bio-guided fractionation, hydroxychavicol was isolated as an active compound. The cytotoxic activity of hydroxychavicol was stronger in EMT-induced MDCK cells than in control cells. However, its cytotoxic activity was suppressed in EMT-inhibited cells. Furthermore, hydroxychavicol exhibited same activity against SAS cells (human squamous cell carcinoma of the tongue). Thus, we have successfully established a screening method for growth inhibitors of EMT-induced cells and have discovered an inhibitor from plant-based sources.
Graphical abstract
References
Kong D, Li Y, Wang Z, Sarkar FH (2011) Cancer stem cells and epithelial-to-mesenchymal transition (EMT)-phenotypic cells: are they cousins or twins? Cancers 3:716–729
Marcucci F, Stassi G, Maria RD (2016) Epithelial-mesenchymal transition: a new target in anticancer drug discovery. Nat Rev 15:311–325
Książkiewicz M, Markiewicz A, Żaczek AJ (2012) Epithelial-mesenchymal transition: a hallmark in metastasis formation linking circulating tumor cells and cancer stem cells. Pathobiology 79:195–208
Arai K, Eguchi T, Rahman MM, Sakamoto R, Masuda N, Nakatsura T, Calderwood SK, Kozakz K, Itoh M (2016) A novel high-throughput 3D screening system for EMT inhibitors: a pilot screening discovered the EMT inhibitory activity of CDK2 inhibitor SU9516. PLoS ONE 11:e0162394
Avila-Carrasco L, Majano P, Sánchez-Tomér JA, Selgas R, López-Cabrera M, Aguilera A, Mateo GG (2019) Natural plants compounds as modulators of epithelial-to-mesenchymal transition. Front Pharmacol 10:715
Nakashima T, Kimura T, Miyano R, Matsuo H, Hirose T, Kimishima A, Nonaka K, Iwatsuki M, Nakanishi J, Takahashi Y, Ōmura S (2017) Nanaomycin H: a new nanaomycin analog. J Biosci Bioeng 123:765–770
Matsuo H, Nakanishi J, Noguchi Y, Kitagawa K, Shigemura K, Sunazuka T, Takahashi Y, Ōmura S, Nakashima T (2020) Nanaomycin K, a new epithelial-mesenchymal transition inhibitor, produced by actinomycete strain “Streptomyces rosa subsp. notensis OS-3966”. J Biosci Bioeng 129:291–295
Nakashima T, Takahashi Y, Ōmura S (2017) Search for new compounds from Kitasato microbial library by physicochemical screening. Biochem Pharmacol 134:42–55
Nakashima T, Miyano R, Iwatsuki M, Shirahata T, Kimura T, Asami Y, Kobayashi Y, Shiomi K, Petersson GA, Takahashi Y, Ōmura S (2016) Iminimycin A, the new iminium metabolite produced by Streptomyces griseus OS-3601. J Antibiot 69:611–615
Nakashima T, Miyano R, Matsuo H, Iwatsuki M, Shirahata T, Kobayashi Y, Shiomi K, Peretsson GA, Takahashi Y, Ōmura S (2016) Absolute configuration of iminimyin B, a new indolizidine alkaloid, from Streptomyces griseus OS-3601. Tetrahedron Lett 30:3284–3286
Miyan R, Matsuo H, Nonaka K, Mokudai T, Niwano Y, Shiomi K, Takahashi Y, Ōmura S, Nakashima T (2018) Pochoniolides A and B, new antioxidants from the fungal strain Pochonia chlamydosporia var. spinulospora FKI-7537. J Biosci Bioeng 126:661–666
Kimura T, Inahashi Y, Matsuo H, Suga T, Iwatsuki M, Shiomi K, Takahashi Y, Ōmura S, Nakashima T (2018) Pyrizomicin A and B: Structure and bioactivity of new thiazolyl pyridines from Lechevalieria aerocolonigenes K10–0216. J Antibiot 71:606–608
Matsuo H, Nonaka K, Nagan Y, Yabuki A, Fujikura K, Takahashi Y, Ōmura S, Nakashima T (2018) New metabolites, sarcopodinols A and B, isolated from deep-sea derived fungal strain Sarcopodium sp. FKJ-0025. Biosci Biotechnol Biochem 82:1323–1326
Matsuo H, Noguchi Y, Miyano R, Higo M, Nonaka K, Sunazuka T, Takahashi Y, Ōmura S, Nakashima T (2020) Thioporidiols A and B: anti-fungal sulfur compounds discovered by molybdenum-catalyzed oxidation screening from Trichoderma polypori FKI-7382. Antibiotics 9:236
Matsuo H, Hokari R, Ishiyama A, Higo M, Nonaka K, Iwatsuki M, Nagano Y, Nagahama T, Takahashi Y, Ōmura S, Nakashima T (2020) Hatsusamide A and B: two new metabolites produced by deep-sea derived fungal strain Penicillium steckii FKJ-0213. Mar Drugs 18:513
Ōmura S, Takahashi Y, Nakashima T, Matsumoto A, Nakanishi J, Matsuo H (2018) Epithelial–mesenchymal transition induced cell inhibitor containing nanaomycin derivative. PCT Int. Appl. WO 2018056470 A1, 29 Mar
Nakanishi J, Sugiyama K, Matsuo H, Takahashi Y, Ōmura S, Nakashima T (2019) An application of photoactivatable substrate for the evaluation of epithelial–mesenchymal transition inhibitors. Anal Sci 35:65–69
Kitagawa K, Shigemura K, Ishii A, Nakashima T, Matsuo H, Takahashi Y, Ōmura S, Nakanishi J, Fujisawa M (2021) Nanaomycin K inhibited epithelial-mesenchymal transition and tumor growth in bladder cancer cells in vitro and in vivo. Sci rep 11:9217
Atiya A, Sinha BN, Lal UR (2020) The new ether derivative of phenylpropanoid and bioactivity was investigated from the leaves of Piper betle L. Nat Prod Res 24:638–645
Ali I, Satti NK, Dutt P, Prasad R, Khan IA (2016) Hydroxychavicol: a phytochemical targeting cutaneous fungal infections. Sci Rep 6:37867
Murata K, Nakao K, Hirata N, Namba K, Nomi T, Kitamura Y, Moriyama K, Shintani T, Iinuma M, Matsuda H (2009) Hydroxychavicol: a potent xanthine oxidase inhibitor obtained from the leaves of betel, Piper betle. J Nat Med 63:355–359
Acknowledgements
We thank Dr. Masato Iwatsuki and Distinguished Emeritus Professor Satoshi Ōmura (Kitasato University) for providing nanaomycin E.
Funding
This study was supported by a JSPS KAKENHI Grant (Grant Number: 21K06625) to H. Matsuo.
Author information
Authors and Affiliations
Contributions
H. M. performed the screening, isolation, biological assay and described manuscript. H. K. prepared the plant extracts for screening. N. A. collected the Piper bitle. N. K. (Noriaki Kawano), H. F., N. K. (Nobuo Kawahara), and K. Y. supervised this study. All members were engaged in the collection of natural plant resources.
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Supplementary Information
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Matsuo, H., Kawakami, H., Anjiki, N. et al. Screening of growth inhibitors for epithelial–mesenchymal transition-induced cells by TGF-β from plant-based sources identified the active compound hydroxychavicol from Piper bitle. J Nat Med (2024). https://doi.org/10.1007/s11418-024-01785-3
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11418-024-01785-3