Abstract:
:Perilla frutescens is an Asian dietary herb consumed as an essential seasoning in Japanese cuisine as well as used for a Chinese medicine. Here, we report that a newly found methoxyflavanone derivative from P. frutescens (Perilla-derived methoxyflavanone, PDMF; 8-hydroxy-5,7-dimethoxyflavanone) shows carcinostatic activity on human lung adenocarcinoma, A549. We found that treatment with PDMF significantly inhibited cell proliferation and decreased viability through induction of G2/M cell cycle arrest and apoptosis. The PDMF stimulation induces phosphorylation of tumor suppressor p53 on Ser15, and increases its protein amount in conjunction with up-regulation of downstream cyclin-dependent kinase inhibitor p21Cip1/Waf1 and proapoptotic caspases, caspase-9 and caspase-3. We also found that small interfering RNA knockdown of p53 completely abolished the PDMF-induced G2/M cell cycle arrest, and substantially abrogated its proapoptotic potency. These results suggest that PDMF represents a useful tumor-preventive phytochemical that triggers p53-driven G2/M cell cycle arrest and apoptosis.
journal_name
Cytotechnologyjournal_title
Cytotechnologyauthors
Abd El-Hafeez AA,Fujimura T,Kamei R,Hirakawa N,Baba K,Ono K,Kawamoto Sdoi
10.1007/s10616-017-0116-1subject
Has Abstractpub_date
2018-06-01 00:00:00pages
899-912issue
3eissn
0920-9069issn
1573-0778pii
10.1007/s10616-017-0116-1journal_volume
70pub_type
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