JaLCDOI 10.18926/AMO/55587
FullText URL 71_6_505.pdf
Author Honda, Yoshihiro| Takigawa, Nagio| Ichihara, Eiki| Ninomiya, Takashi| Kubo, Toshio| Ochi, Nobuaki| Yasugi, Masayuki| Murakami, Toshi| Yamane, Hiromichi| Tanimoto, Mitsune| Kiura, Katsuyuki|
Abstract (−)-Epigallocatechin-3-gallate (EGCG) has been shown to bind to several receptors including epidermal growth factor receptor (EGFR). EGFR tyrosine kinase inhibitors and anaplastic lymphoma kinase (ALK) inhibitors are effective for non-small cell lung cancers harboring activating EGFR mutations and ALK or c-ros oncogene 1 (ROS1) fusion genes, respectively. We investigated the effects of EGCG on EGFR- or fusion gene-driven lung cancer cells such as PC-9, RPC-9, H1975, H2228 and HCC78. The five cell lines had similar sensitivity to EGCG. Phosphorylated (p)EGFR, pAkt and pErk in PC-9, RPC-9 and H1975 cells were suppressed by EGCG (50 or 100 μM). EGCG also inhibited pALK in H2228, pROS1 in HCC78, and pErk and pAkt in both cell lines. All the xenograft tumors established using the 5 cell lines in EGCG-treated groups were significantly smaller than the tumors in the vehicle-treated groups. The numbers of tumor blood vessels of xenograft tissues in EGCG-treated mice were significantly lower than those in vehicle-treated mice. In conclusion, EGCG may be effective for EGFR-driven lung tumors irrespective of the presence of T790M, and for ALK or ROS1 fusion gene-driven lung tumors.
Keywords epigallocatechin-3-gallate lung cancer EGFR ALK ROS1
Amo Type Original Article
Published Date 2017-12
Publication Title Acta Medica Okayama
Volume volume71
Issue issue6
Publisher Okayama University Medical School
Start Page 505
End Page 512
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29276223
Author Yasugi, Masayuki| Takigawa, Nagio| Ochi, Nobuaki| Ohashi, Kadoaki| Harada, Daijiro| Ninomiya, Takashi| Murakami, Toshi| Honda, Yoshihiro| Ichihara, Eiki| Tanimoto, Mitsune| Kiura, Katsuyuki|
Published Date 2014-08-15
Publication Title Experimental Cell Research
Volume volume326
Issue issue2
Content Type Journal Article
Author Ochi, Nobuaki| Takigawa, Nagio| Harada, Daijiro| Yasugi, Masayuki| Ichihara, Eiki| Hotta, Katsuyuki| Tabata, Masahiro| Tanimoto, Mitsune| Kiura, Katsuyuki|
Published Date 2014-03-10
Publication Title Experimental Cell Research
Volume volume322
Issue issue1
Content Type Journal Article
Author Hayakawa, Hiromi| Ichihara, Eiki| Ohashi, Kadoaki| Ninomiya, Takashi| Yasugi, Masayuki| Takata, Saburo| Sakai, Katsuya| Matsumoto, Kunio| Takigawa, Nagio| Tanimoto, Mitsune| Kiura, Katsuyuki|
Published Date 2013-11
Publication Title Cancer Science
Volume volume104
Issue issue11
Content Type Journal Article
Author Harada, Daijiro| Takigawa, Nagio| Ochi, Nobuaki| Ninomiya, Takashi| Yasugi, Masayuki| Kubo, Toshio| Takeda, Hiromasa| Ichihara, Eiki| Ohashi, Kadoaki| Takata, Saburo| Tanimoto, Mitsune| Kiura, Katsuyuki|
Published Date 2012-10
Publication Title Cancer Science
Volume volume103
Issue issue10
Content Type Journal Article