F
Fumiharu Ohka
Researcher at Nagoya City University
Publications - 7
Citations - 870
Fumiharu Ohka is an academic researcher from Nagoya City University. The author has contributed to research in topics: DNA methylation & Carcinogenesis. The author has an hindex of 5, co-authored 7 publications receiving 714 citations. Previous affiliations of Fumiharu Ohka include Epigenomics AG.
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Journal ArticleDOI
Mutational landscape and clonal architecture in grade II and III gliomas
Hiromichi Suzuki,Kosuke Aoki,Kenichi Chiba,Yusuke Sato,Yusuke Shiozawa,Yuichi Shiraishi,Teppei Shimamura,Atsushi Niida,Kazuya Motomura,Fumiharu Ohka,Takashi Yamamoto,Kuniaki Tanahashi,Melissa Ranjit,Toshihiko Wakabayashi,Tetsuichi Yoshizato,Keisuke Kataoka,Kenichi Yoshida,Yasunobu Nagata,Aiko Sato-Otsubo,Hiroko Tanaka,Masashi Sanada,Yutaka Kondo,Hideo Nakamura,Masahiro Mizoguchi,Tatsuya Abe,Yoshihiro Muragaki,Reiko Watanabe,Ichiro Ito,Satoru Miyano,Atsushi Natsume,Seishi Ogawa +30 more
TL;DR: In this article, the authors delineate the entire picture of genetic alterations and affected pathways in these glioma types, with sensitive detection of driver genes Grade II and III gliomas comprise three distinct subtypes characterized by discrete sets of mutations and distinct clinical behaviors, suggesting that there is functional interplay between the mutations that drive clonal selection.
Journal ArticleDOI
Chromatin regulator PRC2 is a key regulator of epigenetic plasticity in glioblastoma
Atsushi Natsume,Motokazu Ito,Keisuke Katsushima,Fumiharu Ohka,Akira Hatanaka,Keiko Shinjo,Shinya Sato,Satoru Takahashi,Yuta Ishikawa,Ichiro Takeuchi,Hiroki Shimogawa,Motonari Uesugi,Hideyuki Okano,Seung U. Kim,Toshihiko Wakabayashi,Jean Pierre J. Issa,Y Sekido,Yutaka Kondo +17 more
TL;DR: Results indicate that epigenetic regulation by PRC2 is a key mediator of tumor cell plasticity, which is required for the adaptation of glioblastoma cells to their microenvironment, andPRC2-targeted therapy may reduce tumor cell Plasticity and tumor heterogeneity, offering a new paradigm for glioma treatment.
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Aberrant TET1 Methylation Closely Associated with CpG Island Methylator Phenotype in Colorectal Cancer
Norihisa Ichimura,Keiko Shinjo,Byonggu An,Yasuhiro Shimizu,Kenji Yamao,Fumiharu Ohka,Keisuke Katsushima,Akira Hatanaka,Masayuki Tojo,Eiichiro Yamamoto,Hiromu Suzuki,Minoru Ueda,Yutaka Kondo +12 more
TL;DR: The authors in this paper showed that TET1 methylation may contribute to the establishment of a unique pathway in respect to CIMP-mediated tumorigenesis, which may be incidental to hMLH 1 methylation.
Journal ArticleDOI
Histone Deacetylase Inhibition in Prostate Cancer Triggers miR-320-Mediated Suppression of the Androgen Receptor
Shinya Sato,Keisuke Katsushima,Keiko Shinjo,Akira Hatanaka,Fumiharu Ohka,Shugo Suzuki,Aya Naiki-Ito,Norihito Soga,Satoru Takahashi,Yutaka Kondo +9 more
TL;DR: OBP-801 may be a potent AR-targeting therapeutic reagent in AR-positive prostate cancer regardless of androgen dependency, and epigenetic upregulation of miR-320a resulted in tumor cell growth suppression of prostate cancers.
Journal ArticleDOI
LATS2 Positively Regulates Polycomb Repressive Complex 2.
Kosuke Torigata,Okuzaki Daisuke,Satomi Mukai,Akira Hatanaka,Fumiharu Ohka,Daisuke Motooka,Shota Nakamura,Yasuyuki Ohkawa,Norikazu Yabuta,Yutaka Kondo,Hiroshi Nojima +10 more
TL;DR: A LATS2 knockout cell line is constructed using TAL-effector nuclease to reveal a novel signal upstream of PRC2, and provide insight into the crucial role of LATS1 in coordinating the epigenome through regulation of PRc2.