Updated on 2025/11/18

写真a

 
NAKAYAMA Koh
 
Organization
School of Medicine Medical Course Basic Medicine Pharmacology
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Degree

  • Ph.D. ( The University of Tokyo )

Research Interests

  • drug resistance

  • cancer drug development

  • hypoxia response

  • metabolism

  • intracellular signal transduction

  • oncology

Research Areas

  • Life Science / Tumor biology

  • Life Science / Pharmacology

  • Life Science / Medical biochemistry  / Oxygen Biology

  • Life Science / Cell biology

Research History

  • Asahikawa Medical College   Department of Pharmacology, School of Medicine   Professor

    2020.9

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  • Tokyo Medical and Dental University   Medical Research Institute Advanced Molecular Medicine Oxygen Biology   Associate Professor

    2011.4 - 2020.8

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  • Tokyo Medical and Dental University   Medical Research Institute Medical Top Track Program   Project Junior Associate Professor

    2007.1 - 2011.3

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Professional Memberships

Committee Memberships

  • 日本薬理学会   編集委員  

    2024.4   

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    Committee type:Academic society

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Papers

  • Diversity of ER-positive and HER2-negative breast cancer stem cells attained using selective culture techniques Reviewed

    Satoshi Sueoka, Azusa Kai, Yukino Kobayashi, Masaoki Ito, Shinsuke Sasada, Akiko Emi, Noriko Gotoh, Koji Arihiro, Koh Nakayama, Morihito Okada, Takayuki Kadoya

    Scientific Reports   15 ( 1 )   2025.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1038/s41598-025-90689-7

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    Other Link: https://www.nature.com/articles/s41598-025-90689-7

  • Fragile X mental retardation protein regulates glycolytic gene expression under chronic hypoxia in HCT116 cells Reviewed

    Ogura Y., Sun X., Zhang Z., Kawata K., Wu J., Matsubara R., Nakanishi-Ozeki A., Taniue K., Onoguchi-Mizutani R., Adachi S., Nakayama K., Goda N., Akimitsu N.

    Scientific Reports   in press   2025.2

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  • Hypoxia-Targeted Immunotherapy with PD-1 Blockade in Head and Neck Cancer. Reviewed International journal

    Risa Wakisaka, Hidekiyo Yamaki, Michihisa Kono, Takahiro Inoue, Ryosuke Sato, Hiroki Komatsuda, Kenzo Ohara, Akemi Kosaka, Takayuki Ohkuri, Toshihiro Nagato, Kan Kishibe, Koh Nakayama, Hiroya Kobayashi, Takumi Kumai, Miki Takahara

    Cancers   16 ( 17 )   2024.8

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    Intratumoral hypoxia is associated with tumor progression, aggressiveness, and therapeutic resistance in several cancers. Hypoxia causes cancer cells to experience replication stress, thereby activating DNA damage and repair pathways. MutT homologue-1 (MTH1, also known as NUDT1), a member of the Nudix family, maintains the genomic integrity and viability of tumor cells in the hypoxic tumor microenvironment. Although hypoxia is associated with poor prognosis and can cause therapeutic resistance by regulating the microenvironment, it has not been considered a treatable target in cancer. This study aimed to investigate whether hypoxia-induced MTH1 is a useful target for immunotherapy and whether hypoxic conditions influence the antitumor activity of immune cells. Our results showed that MTH1 expression was elevated under hypoxic conditions in head and neck cancer cell lines. Furthermore, we identified a novel MTH1-targeting epitope peptide that can activate peptide-specific CD4+ helper T cells with cytotoxic activity. The proliferation and cytotoxic activity of T cells were maintained under hypoxic conditions, and PD-1 blockade further augmented the cytotoxicity. These results indicate that MTH1-targeted immunotherapy combined with checkpoint blockade can be an effective strategy for the treatment of hypoxic tumors.

    DOI: 10.3390/cancers16173013

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  • Large-scale mapping of positional changes of hypoxia-responsive genes upon activation. Reviewed International journal

    Koh Nakayama, Sigal Shachar, Elizabeth H Finn, Hiroyuki Sato, Akihiro Hirakawa, Tom Misteli

    Molecular Biology of the Cell   33 ( 8 )   ar72   2022.7

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    Chromosome structure and nuclear organization are important factors in the regulation of gene expression. Transcription of a gene is influenced by local and global chromosome features such as chromatin condensation status. The relationship between the 3D position of a gene in the nucleus and its activity is less clear. Here we used high-throughput imaging to perform a large-scale analysis of the spatial location of nearly 100 hypoxia-responsive genes to determine whether their location and activity state are correlated. Radial distance analysis demonstrated that the majority of Hypoxia-Inducible Factor (HIF)- and CREB-dependent hypoxia-responsive genes are located in the intermediate region of the nucleus, and some of them changed their radial position in hypoxia. Analysis of the relative distances among a subset of HIF target genes revealed that some gene pairs altered their relative location to each other on hypoxic treatment, suggesting higher-order chromatin rearrangements. While these changes in location occurred in response to hypoxic activation of the target genes, they did not correlate with the extent of their activation. These results suggest that induction of the hypoxia-responsive gene expression program is accompanied by spatial alterations of the genome, but that radial and relative gene positions are not directly related to gene activity.

    DOI: 10.1091/mbc.E21-11-0593

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  • Effect of Wnt5a on drug resistance in estrogen receptor-positive breast cancer. Reviewed

    Ai Amioka, Takayuki Kadoya, Satoshi Sueoka, Yoshie Kobayashi, Shinsuke Sasada, Akiko Emi, Norio Masumoto, Masaoki Ito, Koh Nakayama, Morihito Okada

    Breast cancer (Tokyo, Japan)   28 ( 5 )   1062 - 1071   2021.9

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    BACKGROUND: Previously, we reported that Wnt5a-positive breast cancer can be classified as estrogen receptor (ER)-positive breast cancer; its prognosis is worse than that of Wnt5a-negative breast cancer. This study aimed to investigate the mechanisms underlying the poor prognosis in Wnt5a-positive breast cancer patients. METHODS: In total, 151 consecutive ER-positive breast cancer patients who underwent resection between January 2011 and February 2014 were enrolled. DNA microarray and pathway analyses were conducted using MCF-7 cells stably expressing Wnt5a [MCF-7/Wnt5a (+)]. Based on the outcomes, cell viability/drug sensitivity assays, and mutation analysis were performed using cell cultures and breast cancer tissues. The relationship between Wnt5a and the PI3K-AKT-mTOR signaling pathway was also examined. RESULTS: The relapse-free survival rate in patients with Wnt5a-positive breast cancer was significantly lower than that in patients with Wnt5a-negative breast cancer (P = 0.047). DNA microarray data suggest that only the cytochrome P450 (CYP) pathway was significantly upregulated in MCF-7/Wnt5a (+) cells (P = 0.0440). Additionally, MCF-7/Wnt5a (+) cells displayed reduced sensitivity to the metabolic substrates of CYP, tamoxifen (P < 0.001), paclitaxel (P < 0.001), and cyclophosphamide (P < 0.001). Of note, PIK3CA mutations were not associated with the expression of Wnt5a in breast cancer tissue and culture cells. CONCLUSIONS: In ER-positive breast cancer, Wnt5a upregulates the CYP metabolic pathway and suppresses tamoxifen, paclitaxel, and cyclophosphamide resistance, all of the three, standard treatment methods for ER-positive breast cancer. Wnt5a is thus potentially involved in the poor prognosis of ER-positive breast cancer independently of the PI3K-AKT-mTOR signaling pathway.

    DOI: 10.1007/s12282-021-01241-0

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  • Prolonged hypoxia decreases nuclear pyruvate dehydrogenase complex and regulates the gene expression. Reviewed

    Eguchi K, Nakayama K

    Biochemical and biophysical research communications   520 ( 1 )   128 - 135   2019.11

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    DOI: 10.1016/j.bbrc.2019.09.109

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  • Pyruvate Dehydrogenase PDH-E1β Controls Tumor Progression by Altering the Metabolic Status of Cancer Cells. Reviewed International journal

    Ryo Yonashiro, Kayoko Eguchi, Masaki Wake, Norihiko Takeda, Koh Nakayama

    Cancer research   78 ( 7 )   1592 - 1603   2018.4

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    Downregulation of pyruvate dehydrogenase (PDH) is critical for the aberrant preferential activation of glycolysis in cancer cells under normoxic conditions. Phosphorylation-dependent inhibition of PDH is a relevant event in this process, but it is not durable as it relies on PDH kinases that are activated ordinarily under hypoxic conditions. Thus, it remains unclear how PDH is durably downregulated in cancer cells that are not hypoxic. Building on evidence that PDH activity depends on the stability of a multi-protein PDH complex, we found that the PDH-E1β subunit of the PDH complex is downregulated to inhibit PDH activity under conditions of prolonged hypoxia. After restoration of normoxic conditions, reduced expression of PDH-E1β was sustained such that glycolysis remained highly activated. Notably, PDH-E1β silencing in cancer cells produced a metabolic state strongly resembling the Warburg effect, but inhibited tumor growth. Conversely, enforced exogenous expression of PDH-E1β durably increased PDH activity and promoted the malignant growth of breast cancer cells in vivo Taken together, our results establish the specific mechanism through which PDH acts as an oncogenic factor by tuning glycolytic metabolism in cancer cells.Significance: This seminal study offers a mechanistic explanation for why glycolysis is aberrantly activated in normoxic cancer cells, offering insights into this long-standing hallmark of cancer termed the Warburg effect. Cancer Res; 78(7); 1592-603. ©2018 AACR.

    DOI: 10.1158/0008-5472.CAN-17-1751

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  • SpotLearn: Convolutional Neural Network for Detection of Fluorescence In Situ Hybridization (FISH) Signals in High-Throughput Imaging Approaches. Reviewed

    Gudla PR, Nakayama K, Pegoraro G, Misteli T

    Cold Spring Harbor symposia on quantitative biology   82   57 - 70   2017

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    DOI: 10.1101/sqb.2017.82.033761

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  • CD73 as a therapeutic target for pancreatic neuroendocrine tumor stem cells Reviewed

    Eriko Katsuta, Shinji Tanaka, Kaoru Mogushi, Shu Shimada, Yoshimitsu Akiyama, Arihiro Aihara, Satoshi Matsumura, Yusuke Mitsunori, Daisuke Ban, Takanori Ochiai, Atsushi Kudo, Hiroshi Fukamachi, Hiroshi Tanaka, Koh Nakayama, Shigeki Arii, Minoru Tanabe

    International Journal of Oncology   48 ( 2 )   657 - 669   2016.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Spandidos Publications  

    DOI: 10.3892/ijo.2015.3299

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  • CREB is activated by ER stress and modulates the unfolded protein response by regulating the expression of IRE1α and PERK Reviewed

    Daisuke Kikuchi, Kousuke Tanimoto, Koh Nakayama

    Biochemical and Biophysical Research Communications   469 ( 2 )   243 - 250   2016.1

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    DOI: 10.1016/j.bbrc.2015.11.113

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  • Prolyl-hydroxylase PHD3 interacts with pyruvate dehydrogenase (PDH)-E1β and regulates the cellular PDH activity. Reviewed International journal

    Daisuke Kikuchi, Yoji Andrew Minamishima, Koh Nakayama

    Biochemical and biophysical research communications   451 ( 2 )   288 - 94   2014.8

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    DOI: 10.1016/j.bbrc.2014.07.114

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  • CAMP-response element-binding protein (CREB) and NF-κB transcription factors are activated during prolonged hypoxia and cooperatively regulate the induction of matrix metalloproteinase MMP1 Reviewed

    Koh Nakayama

    Journal of Biological Chemistry   288 ( 31 )   22584 - 22595   2013.8

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    DOI: 10.1074/jbc.M112.421636

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  • Visualization of stem cell features in human hepatocellular carcinoma reveals in vivo significance of tumor-host interaction and clinical course Reviewed

    Shunsuke Muramatsu, Shinji Tanaka, Kaoru Mogushi, Rama Adikrisna, Arihiro Aihara, Daisuke Ban, Takanori Ochiai, Takumi Irie, Atsushi Kudo, Noriaki Nakamura, Koh Nakayama, Hiroshi Tanaka, Shoji Yamaoka, Shigeki Arii

    Hepatology   58 ( 1 )   218 - 228   2013.7

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    DOI: 10.1002/hep.26345

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  • Acetylcholine receptors regulate gene expression that is essential for primitive streak formation in murine embryoid bodies Reviewed

    Norie Arima, Yoshimi Uchida, Ruoxing Yu, Koh Nakayama, Hiroshi Nishina

    Biochemical and Biophysical Research Communications   435 ( 3 )   447 - 453   2013.6

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    DOI: 10.1016/j.bbrc.2013.05.006

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  • Hypoxia-inducible factor and signal transducer and activators of transcription 3: Two central regulators meet to regulate kidney pathophysiology Reviewed

    Koh Nakayama, Masaomi Nangaku

    Clinical and Experimental Pharmacology and Physiology   40 ( 4 )   251 - 252   2013

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    DOI: 10.1111/1440-1681.12071

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  • Human PRP19 interacts with prolyl-hydroxylase PHD3 and inhibits cell death in hypoxia Reviewed

    Masuhiro Sato, Miki Sakota, Koh Nakayama

    Experimental Cell Research   316 ( 17 )   2871 - 2882   2010.10

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    DOI: 10.1016/j.yexcr.2010.06.018

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  • Siah2-Dependent Concerted Activity of HIF and FoxA2 Regulates Formation of Neuroendocrine Phenotype and Neuroendocrine Prostate Tumors Reviewed

    Jianfei Qi, Koh Nakayama, Robert D. Cardiff, Alexander D. Borowsky, Karen Kaul, Roy Williams, Stan Krajewski, Dan Mercola, Philip M. Carpenter, David Bowtell, Ze'ev A. Ronai

    Cancer Cell   18 ( 1 )   23 - 38   2010.7

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    DOI: 10.1016/j.ccr.2010.05.024

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  • The Ubiquitin Ligase Siah2 and the Hypoxia Response Reviewed

    Koh Nakayama, Jianfei Qi, Ze&apos, ev Ronai

    Molecular Cancer Research   7 ( 4 )   443 - 451   2009.4

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    DOI: 10.1158/1541-7786.MCR-08-0458

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  • The ubiquitin ligase Siah2 regulates tumorigenesis and metastasis by HIF-dependent and -independent pathways Reviewed

    Jianfei Qi, Koh Nakayama, Supriya Gaitonde, James S. Goydos, Stan Krajewski, Alexey Eroshkin, Dafna Bar-Sagi, David Bowtell, Ze'ev Ronai

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   105 ( 43 )   16713 - 16718   2008.10

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    DOI: 10.1073/pnas.0804063105

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  • Hypoxia-induced assembly of prolyl hydroxylase PHD3 into complexes: implications for its activity and susceptibility for degradation by the E3 ligase Siah2 Reviewed

    Koh Nakayama, Stefan Gazdoiu, Robert Abraham, Zhen-Qiang Pan, Ze'ev Ronai

    Biochemical Journal   401   217 - 226   2007.1

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    DOI: 10.1042/BJ20061135

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  • Regulation of the ring finger E3 ligase Siah2 by p38 MAPK Reviewed

    Ashwani Khurana, Koh Nakayama, Scott Williams, Roger J. Davis, Tomas Mustelin, Ze'ev Ronai

    JOURNAL OF BIOLOGICAL CHEMISTRY   281 ( 46 )   35316 - 35326   2006.11

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    DOI: 10.1074/jbc.M606568200

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  • [Ubiquitin system in hypoxia response].

    Koh Nakayama, Ze'ev Ronai

    Tanpakushitsu kakusan koso. Protein, nucleic acid, enzyme   51 ( 10 Suppl )   1309 - 15   2006.8

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  • Siah2 regulates stability of prolyl-hydroxylases, controls HIF1 alpha abundance, and modulates physiological responses to hypoxia Reviewed

    K Nakayama, IJ Frew, M Hagensen, M Skals, H Habelhah, A Bhoumik, T Kadoya, H Erdjument-Bromage, P Tempst, PB Frappell, DD Bowtell, Z Ronai

    Cell   117 ( 7 )   941 - 952   2004.6

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    DOI: 10.1016/j.cell.2004.06.001

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  • RNF5, a RING finger protein that regulates cell motility by targeting paxillin ubiquitination and altered localization Reviewed

    C Didier, L Broday, A Bhoumik, S Israeli, S Takahashi, K Nakayama, SM Thomas, CE Turner, S Henderson, H Sabe, Z Ronai

    MOLECULAR AND CELLULAR BIOLOGY   23 ( 15 )   5331 - 5345   2003.8

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    DOI: 10.1128/MCB.23.15.5331-5345.2003

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  • A novel nuclear zinc finger protein EZI enhances nuclear retention and transactivation of STAT3 Reviewed

    K Nakayama, KW Kim, A Miyajima

    EMBO Journal   21 ( 22 )   6174 - 6184   2002.11

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  • A novel oncostatin M-inducible gene OIG37 forms a gene family with MyD118 and GADD45 and negatively regulates cell growth Reviewed

    K Nakayama, T Hara, M Hibi, T Hirano, A Miyajima

    Journal of Biological Chemistry   274 ( 35 )   24766 - 24772   1999.8

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Books

  • 2-oxoglutarate-dependent dioxygenase family as a molecular sensor for cellular oxygen and metabolic sensing Reviewed

    Koh Nakayama, Yoji Andrew Minamishima

    The Japanese Pharmacological Society  2025.7 

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  • 低酸素センサー

    中山 恒( Role: Sole author)

    先端医学社  2016.4 

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    Total pages:6   Language:Japanese  

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  • 多彩な生命現象に働く低酸素応答システム

    中山 恒, 合田 亘人( Role: Joint author)

    羊土社  2012.5 

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    Total pages:6   Language:Japanese  

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  • 低酸素応答システム―HIF・PHDの新機能と疾患―

    中山 恒, 合田 亘人( Role: Joint editor)

    羊土社  2012.5 

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  • PHDによって制御される低酸素応答シグナル HIF経路とHIF非依存的経路の役割

    中山 恒( Role: Sole author)

    羊土社  2012.5 

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MISC

  • Regulation of Gene Expression under Hypoxic Conditions. Reviewed International journal

    Koh Nakayama, Naoyuki Kataoka

    International Journal of Molecular Sciences   20 ( 13 )   2019.7

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    Eukaryotes are often subjected to different kinds of stress. In order to adjust to such circumstances, eukaryotes activate stress-response pathways and regulate gene expression. Eukaryotic gene expression consists of many different steps, including transcription, RNA processing, RNA transport, and translation. In this review article, we focus on both transcriptional and post-transcriptional regulations of gene expression under hypoxic conditions. In the first part of the review, transcriptional regulations mediated by various transcription factors including Hypoxia-Inducible Factors (HIFs) are described. In the second part, we present RNA splicing regulations under hypoxic conditions, which are mediated by splicing factors and their kinases. This work summarizes and discusses the emerging studies of those two gene expression machineries under hypoxic conditions.

    DOI: 10.3390/ijms20133278

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  • 低酸素刺激特異的な選択的スプライシング機構の解明

    片岡直行, 伊藤美佳子, 増田章男, 大野欽司, 江口加代子, 伯野史彦, 高橋伸一郎, 中山恒

    日本分子生物学会年会プログラム・要旨集(Web)   41st   2018

  • CREB regulates the expression of PERK and IRE1a, and controls unfolded protein response under hypoxic conditions

    Koh Nakayama

    FASEB JOURNAL   30   2016.4

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  • CD73: A therapeutic target for pancreatic neuroendocrine tumor stem cells

    Eriko Katsuta, Shinji Tanaka, Kaoru Mogushi, Shu Shimada, Yoshimitsu Akiyama, Arihiro Aihara, Satoshi Matsumura, Yusuke Mitsunori, Daisuke Ban, Takanori Ochiai, Atsushi Kudo, Hiroshi Fulcamachi, Hiroshi Tanaka, Koh Nakayama, Shigeki Arii, Minoru Tanabe

    INTERNATIONAL JOURNAL OF MOLECULAR MEDICINE   38   S5 - S5   2016

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  • Visualization of stem cell features in human hepatocellular carcinoma; tumor-host interaction and clinical imapct

    Shinji Tanaka, Shunsuke Muramatsu, Arihiro Aihara, Rama Adikrisna, Kaoru Mogushi, Satoshi Matsumura, Daisuke Ban, Takanori Ochiai, Takumi Irie, Atsushi Kudo, Noriaki Nakamura, Koh Nakayama, Hiroshi Tanaka, Shoji Yamaoka, Minoru Tanabe, Shigeki Arii

    HEPATOLOGY   58   1083A - 1083A   2013.10

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  • Growth and progression of melanoma and non-melanoma skin cancers regulated by ubiquitination Reviewed

    Koh Nakayama

    Pigment Cell & Melanoma Research   23 ( 3 )   338 - 351   2010.6

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    DOI: 10.1111/j.1755-148X.2010.00692.x

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  • Cellular Signal Transduction of the Hypoxia Response Reviewed

    Koh Nakayama

    Journal of Biochemistry   146 ( 6 )   757 - 765   2009.12

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    DOI: 10.1093/jb/mvp167

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  • Siah: new players in the cellular response to hypoxia. Reviewed International journal

    Koh Nakayama, Ze'ev Ronai

    Cell Cycle   3 ( 11 )   1345 - 1347   2004.11

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    Prolyl-hydroxylation of HIF-1alpha is a prerequisite for pVHL binding to HIF-1alpha, which results in degradation of HIF-1alpha by the ubiquitin-proteasome pathway. Hydroxylation of HIF-1alpha is mediated by the family of prolyl-hydroxylase proteins (PHD). In hypoxia, HIF-1alpha is stabilized as a result of inhibition of HIF-1alpha hydroxylation, which in part is achieved by decreased activity of PHD enzymes at very low oxygen concentrations. We recently demonstrated that in hypoxia the stability of 2 of 3 PHDs (1 and 3) is regulated by the E3 ligases Siah1/2. Consequently, in hypoxia Siah determines the availability of PHD1/3, which otherwise modify HIF-1alpha to enable its association-dependent degradation by pVHL. These findings define a newly discovered layer in the regulation of HIF-1alpha in hypoxia. The roles of Siah activities in hypoxia responses are discussed.

    DOI: 10.4161/cc.3.11.1207

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  • A novel oncostatin M-inducible zinc finger protein ZIO suppresses hematopoiesis in primary AGM culture.

    K Nakayama, A Miyajima

    BLOOD   96 ( 11 )   682A - 682A   2000.11

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  • A novel oncostatin M-inducible gene OIG37 forms a gene family with MyD118 and Gadd45 and negatively regulates cell growth.

    K Nakayama, T Hara, A Miyajima

    BLOOD   92 ( 10 )   476A - 476A   1998.11

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Presentations

  • Expression and processing of GDF15 during prolonged hypoxia Invited

    Koh Nakayama

    2025.11 

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    Event date: 2025.11

    Presentation type:Symposium, workshop panel (nominated)  

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  • 慢性的な低酸素環境への適応機構:遺伝子発現制御と創薬展望 Invited

    中山 恒

    APPW2025(解剖・生理・薬理合同年会)  2025.3 

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    Event date: 2025.3

    Language:Japanese   Presentation type:Symposium, workshop panel (nominated)  

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  • 低酸素微小環境で炎症応答性サイトカインGDF15の発現を制御する ストレス応答シグナルの解析

    水野愛子, 谷内秀輔, 中山 恒

    第47回 日本分子生物学会年会  2024.11 

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    Event date: 2024.11

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  • 2-OG-dependent dioxygenases in hypoxic response: functional analysis of histone demethylase KDM2A Invited

    Koh Nakayama

    2024.11 

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    Event date: 2024.11

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  • 長期低酸素下における低酸素応答シグナルと小胞体ストレス応答シグナルの相互作用 Invited

    中山 恒

    第46回 日本分子生物学会年会  2023.12 

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    Event date: 2023.12

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

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  • ピルビン酸脱水素酵素PDHによるヒストンアセチル化を介した遺伝子発現制御機構の解析

    中山 恒

    第94回日本薬理学会年会  2021.3 

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  • Repositioning of hypoxia-responsive genes in the nucleus under prolonged hypoxic conditions

    Koh Nakayama, Sigal Shachar, Elizabeth Finn, Hiroyuki Sato, Akihiro Hirakawa, Tom Misteli

    2022.3 

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 慢性的低酸素環境はピルビン酸脱水素酵素PDHの発現を低下させてがん細胞の解糖系に依存した代謝を誘導する

    與那城 亮, 和氣 正樹, 武田 憲彦, 中山 恒

    生命科学系学会合同年次大会  2017.12  生命科学系学会合同年次大会運営事務局

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  • ピルビン酸脱水素酵素PDHの新しい活性制御機構の解明とそれを標的としたがん性代謝抑制法の開発

    中山 恒

    日本応用酵素協会誌  2018.3  (公財)日本応用酵素協会

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  • Induction of Nuclear Gene Repositioning in response to Hypoxia –a Large Scale Analysis of Hypoxia-Responsive Genes-

    Koh Nakayama, Elizabeth H. Finn, Tom Misteli

    CellBio2023  2023.12 

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  • がんの早期と長期の低酸素応答における遺伝子発現制御機構の解析

    中山 恒

    第74回日本薬理学会北部会  2023.9 

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  • 早期と長期の低酸素応答を制御する分子機構 Invited

    中山 恒

    第96回日本生化学会大会  2023.11 

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  • Regulatory mechanism of gene expression during early and late phase of hypoxic response Invited

    Koh Nakayama

    2022.12 

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  • Gene regulation during early and late phase of hypoxic response in cancer cells

    Koh Nakayama

    2022.12 

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  • 長期の低酸素応答によるNF-kB/CREB経路の活性化はマトリックスメタロプロテアーゼMMP1の発現誘導を介してがん細胞の浸潤能を亢進する

    中山 恒

    第86回日本生化学会大会  2013.9  日本生化学会

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    Venue:横浜  

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  • NF-κB/CREB pathway is activated during chronic hypoxia and induces Matrix Metalloproteinase (MMP)1 expression to promote the invasive ability of cancer cells.

    Koh Nakayama

    第36回日本分子生物学会年会  2013.12  日本分子生物学会

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    Venue:神戸  

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  • Activation of NF-κB/CREB pathway during chronic hypoxia induces Matrix Metalloproteinase (MMP)1 expression and promotes the invasive ability of cancer cells. International conference

    Koh Nakayama

    Gordon Research Conference: Matrix Metalloproteinases  2013.5  Gordon Research Conference

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    Venue:Barga, Italy  

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  • HIFプロリン水酸化酵素Phd3が形成するタンパク質複合体を介した細胞内エネルギー代謝機構の解析 Invited

    中山 恒

    日本蛋白質科学会年会  2017.6  日本蛋白質科学会

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    Venue:仙台  

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  • 低酸素環境における解糖系に依存したエネルギー代謝を制御する新たな分子機構の解析 Invited

    中山 恒

    第39回日本分子生物学会年会  2016.11  日本分子生物学会

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    Venue:横浜  

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  • がんの代謝を規定するピルビン酸脱水素酵素PDHの新しい制御機構の解明とがん抑制への応用

    中山 恒

    日本応用酵素協会誌  2017.3  (公財)日本応用酵素協会

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  • CREB regulates the expression of PERK and IRE1a, and controls unfolded protein response under hypoxic conditions. International conference

    Koh Nakayama

    Experimental Biology2016(ASBMB annual meeting)  2016.4  American Society of Biochemistry and Molecular Biology

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    Venue:San Diego, USA  

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  • CREB regulates the expression of PERK and IRE1a and modulates the unfolded protein response under hypoxic conditions

    Koh Nakayama

    第89回生化学会大会  2016.9  日本生化学会

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    Venue:仙台  

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  • Activation of NF-kB/CREB pathway during prolonged hypoxia induces Matrix Metalloproteinase (MMP)1 expression and promotes the invasive ability of cancer cells. International conference

    Koh Nakayama

    Keystone Symposia: Sensing and Signaling of Hypoxia  2014.1  Keystone Symposia

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    Venue:Breckenridge, USA  

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  • HIFプロリン水酸化酵素PHD3とピルビン酸脱水素酵素PDHの相互作用を介したエネルギー代謝制御機構

    中山 恒

    第87回日本生化学会大会  2014.10  日本生化学会

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    Venue:京都  

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  • 長期低酸素応答におけるNF-κB/CREB経路の活性化はマトリックスメタロプロテアーゼMMP1の発現を誘導してがん細胞の浸潤能を亢進する

    中山 恒

    第35回日本分子生物学会年会  2012.12  日本分子生物学

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    Venue:福岡  

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  • 急性期と慢性期の低酸素応答において活性化される転写因子の機能解析 Invited

    中山 恒

    第85回日本生化学会大会  2012.12  日本生化学会

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    Venue:福岡  

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  • Regulation of matrix metalloproteinase MMP1 expression by NF-κB pathway during prolonged hypoxic conditions International conference

    Koh Nakayama

    Keystone Symposia:Advances in Hypoxic Signaling  2012.2  Keystone Symposia

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    Venue:Banff, Canada  

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Research Projects

  • Regulation of tumor growth mediated by pyruvate dehydrogenase PDH

    Grant number:21K06815  2021.4 - 2024.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

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    Grant amount:\4,160,000 ( Direct Cost: \3,200,000 、 Indirect Cost:\960,000 )

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  • 慢性低酸素環境に注目した乳がんの抗アンドロゲン薬抵抗性獲得機序の解明

    Grant number:21K08545  2021.4 - 2024.3

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    今道 力敬, 中山 恒

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    Grant amount:\4,290,000 ( Direct Cost: \3,300,000 、 Indirect Cost:\990,000 )

    はじめに、短期間および長期間の低酸素曝露における低酸素誘導因子(HIF)の転写活性の変動を評価するために、低酸素応答配列(HRE)を導入したレポーターベクターを用いたルシフェラーゼレポーターアッセイ系を構築した。このアッセイ系により、塩化コバルト(CoCl2)溶液添加による疑似的な低酸素環境下だけでなく、実際の低酸素(1%酸素濃度)環境下でのHIF転写活性を検出することが可能になった。次に、アンドロゲン受容体(AR)陽性乳がんの微小環境を模するため、ARを高発現しており、加えてアンドロゲン依存的な増殖能をもつ乳がん細胞株 MDA-MB453を用いて、細胞凝集により形成される3次元的な多細胞モデルであるスフェロイドの作成を試みた。MDA-MB453を低接着性の96ウェルプレートを用いて長期培養することにより、スフェロイド様の細胞集塊を作成することができた。続いて、乳がんスフェロイドの中心部に形成される低酸素環境の可視化のための細胞系構築を試みた。この細胞系ではCre-loxP システムを用いており、低酸素曝露により分解が抑制され安定化したHIFタンパク質がHRE下流のCreの発現を促進する。同時に細胞へloxP-DsRed-loxP-eGFP を導入することで、Creにより低酸素曝露された細胞が不可逆的にeGFP標識し、スフェロイド中心部の低酸素環境にある細胞を検出可能と考えられる。そのため、293T細胞およびレンチウイルスベクターを用いてloxP-DsRed-loxP-eGFPおよびHRE-CREを発現するレンチウイルスを作成した。各々のウイルスをMDA-MB453に感染させ目的のクローンを選択中である。

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  • Comprehensive analysis of 3D nuclear gene position involved in malignant transformation of hypoxic cancer

    Grant number:18KK0233  2018.10 - 2022.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))  Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

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    Grant amount:\17,940,000 ( Direct Cost: \13,800,000 、 Indirect Cost:\4,140,000 )

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  • 水酸化酵素Phdの新規基質の同定を基盤とした低酸素応答システムの解明

    Grant number:17H05523  2017.4 - 2019.3

    日本学術振興会  科学研究費助成事業 新学術領域研究(研究領域提案型)  新学術領域研究(研究領域提案型)

    中山 恒

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    Grant amount:\5,330,000 ( Direct Cost: \4,100,000 、 Indirect Cost:\1,230,000 )

    細胞は低酸素環境にさらされると、低酸素応答を引き起こし、適応する。この適応過程では、代謝をはじめとして様々な細胞応答を調節する必要がある。前年度から引き続き、低酸素応答におけるピルビン酸脱水素酵素PDHの活性制御機構の解析を進めた。PDHの活性が低酸素下で減弱することを前年度までの研究で明らかにしていたことから、そのメカニズムを明らかにするための解析を進めた。細胞にPDHを強制発現させた後に精製して、質量分析を行ったところ、PDHはリン酸化をはじめとして様々な翻訳後修飾を受けることが判明したが、その中にはプロリン水酸化も含まれることが明らかになった。この翻訳後修飾を受ける領域を詳しく検証したところ、PDHの既知基質であるHIFの水酸化部位に存在するモチーフとは相同ではなかったことから、プロリン水酸化には既存のモチーフには依存しない様式でおこるものも存在する可能性が考察された。次に、PDHのプロリン水酸化の生理的意義を明らかにするために、水酸化されるプロリン残基の変異体を作製した。この変異体を細胞内に発現させたところ、変異体は野生型と比べて不安定なタンパク質であり、さらに、PDH複合体の他のサブユニットとの結合能も低下していることが明らかになった。したがって、このプロリン水酸化は、他のサブユニットとの会合を促進して、PDHの複合体の安定化に作用する役割を担うことが考えられた。そこで、PDHがノックダウンされPDH活性が抑制されている細胞株に、野生型およびプロリン水酸化の変異型のPDHを導入して、その酵素活性の回復能を検証した。その結果、野生型と変異型PDHを導入したどちらの細胞でもPDHの酵素活性の回復は認められたが、変異型PDHの方がその活性が低い傾向があることが明らかになった。今後、この解析を細胞系や導入する量を変化させて行い、PDHのプロリン水酸化の役割と、低酸素応答におけるその生理的意義を明らかにしたい。

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  • Selective gene expression machinary during prolonged phase of hypoxia(Fostering Joint International Research)

    Grant number:15KK0298  2016 - 2017

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Fund for the Promotion of Joint International Research (Fostering Joint International Research)  Fund for the Promotion of Joint International Research (Fostering Joint International Research)

    NAKAYAMA Koh, Misteli Tom

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    Grant amount:\14,300,000 ( Direct Cost: \11,000,000 、 Indirect Cost:\3,300,000 )

    We investigated the molecular machinery of gene expression during acute and prolonged phase of hypoxia by focusing on its nuclear position. We first picked up about 200 genes which is up-regulated during hypoxic response in a HIF- or CREB-dependent manner. Probes for these genes were synthesized and their nuclear positions were determined by HIPMap method. This analysis indicated that multiple genes which change expressions in hypoxia, also change their nuclear position. These results indicate that dynamic changes in the gene expression during hypoxia are also co-related with their nuclear positions.

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  • Selective gene expression machinary during prolonged phase of hypoxia

    Grant number:15K08260  2015.4 - 2018.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    NAKAYAMA Koh

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    Grant amount:\4,940,000 ( Direct Cost: \3,800,000 、 Indirect Cost:\1,140,000 )

    We have identified that CREB becomes activated during prolonged phase of hypoxia. In this study, we aimed to understand how CREB regulates its target genes specifically under the prolonged hypoxic condition. I first compared control and CREB-KD cells, and identified a gene set which is specifically induced during prolonged phase of hypoxia. GO analysis of the gene set revealed many gene groups which are involved in malignant transformation of cancer. Finally, lung metastasis was highly inhibited in CREB-KD cells, indicating that CREB activation is involved in tumor metastasis.

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  • Analysis of in vivo niches and therapeutic targets for cancer stem cells based on the visualization mechanism

    Grant number:15K15491  2015.4 - 2017.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    Tanaka Shinji

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    Grant amount:\3,640,000 ( Direct Cost: \2,800,000 、 Indirect Cost:\840,000 )

    Identification and purification of cancer stem cells (CSCs) lead to the discovery of novel therapeutic molecules of pancreatic neuroendocrine tumor (pNET). In this study, we identified CD73 overexpressed in pNET CSCs. The CD73-inhibitor APCP significantly attenuated in vitro sphere formation and cell motility, as well as in vivo tumorigenicity of pNET CSCs. Immunohistochemical analysis of clinical samples demonstrated CD73 expression was significantly correlated with the tumor invasion.
    In addition, our genome editing studies revealed that pNET can acquire CSC potentials with tumorigenicity by knockout of tumor suppressor gene X. We identified "Y" as one of the direct targets of tumor suppressor X. In clinical samples, significantly frequent recurrence was recognized in pNETs with low X and high Y expression.
    Recently, CD73 was reported as a potential inducer of PD-1 immune checkpoint factor. As a result of our studies, CD73 and Y might be promising therapeutic targets for pNET.

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  • 低酸素応答における転写因子の核輸送制御機構の解明-水酸化酵素PHDの新しい機能-

    Grant number:15H01396  2015.4 - 2017.3

    日本学術振興会  科学研究費助成事業 新学術領域研究(研究領域提案型)  新学術領域研究(研究領域提案型)

    中山 恒

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    Grant amount:\5,720,000 ( Direct Cost: \4,400,000 、 Indirect Cost:\1,320,000 )

    これまでにプロテオミクス的手法を用いて網羅的に同定したプロリン水酸化酵素PHD3と結合するタンパク質群の解析を進めた。このアプローチにより得られた核輸送因子AはPHD3と細胞内で結合することが確認された。さらに、同じ質量分析のデータからPHD3は別な酵素Bとも相互作用することが判明したため、分子AとBの間での結合を検証したところ、両者の間にも結合が存在することが明らかになり、PHD3-A-Bの三者で複合体が形成されていることが示唆された。核輸送因子Aが酵素Bと結合することによりその細胞内局在を制御している可能性が考えられたことから、酵素Bの細胞内局在を細胞分画実験により検討したところ、通常は核内に存在する酵素Bが、この複合体が効率的に形成される低酸素環境では有意に減少することが明らかになった。さらに、PHD3と酵素Bの相互作用により、Bが水酸化修飾を受ける可能性を質量分析を用いて検証したところ、水酸化される可能性のある複数の部位の同定に成功した。また、これらの水酸化候補部位に変異を導入した変異体を作製し、解析を進めたところ、いくつかの変異体ではその安定性が著明に低下することが明らかになった。今後は、ここまでの研究成果をまとめるとともに、核輸送因子Aおよび酵素BがPHD3により水酸化を受けることを実証し、その部位を、質量分析を用いて精確に同定したい。また、この水酸化がどのような低酸素条件(酸素濃度、時間)によって変化するのかについても検証したい。最終的に、代表的な低酸素性がんのマウスモデルを用いて、これらの水酸化変異体の解析を実施することで、低酸素性の疾患の発症・発展におけるこれらの分子の生理的意義を明確にしたい。

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  • Molecular mechanism of transcriptional regulation during chronic hypoxic response

    Grant number:24590343  2012.4 - 2015.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    NAKAYAMA Koh

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    Grant amount:\5,460,000 ( Direct Cost: \4,200,000 、 Indirect Cost:\1,260,000 )

    Hypoxic response plays an important role to maintain homeostasis under hypoxic condition. HIF is a transcription factor which has a central role during hypoxic response. I have identified that the activity of HIF becomes decreased in the chronic phase of hypoxia.
    In this study, we tried to identify and characterize the transcription factor(s) which will substitute HIF during the chronic phase. As a result, we identified CREB and NF-κB as such molecules. Further, these factors had a critical role to regulate the tumor metastasis in a mouse transplantation model.

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  • Characterization of the' oxygen sensor' machinery regulating the hypoxia response

    Grant number:22790274  2010 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)  Grant-in-Aid for Young Scientists (B)

    NAKAYAMA Koh

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    Grant amount:\3,900,000 ( Direct Cost: \3,000,000 、 Indirect Cost:\900,000 )

    Organisms regulate multiple physiological functions such as respiration and metabolism under hypoxic conditions to maintain homeostasis. It still remains to be understood what is the molecule playing a role as an' oxygen sensor' in vivo. In the present study, we have focused on the hypoxia-dependent protein complex(hypoxia complex) and characterized one of its components, PRP19. We are able to demonstrate the molecular mechanism underlying i) the hypoxic cell death which is inhibited by PRP19 and ii) the transcriptional suppression which leads to the downregulation of PRP19.

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  • Characterization of the cellular oxygen sensing machinery

    Grant number:20790223  2008 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)  Grant-in-Aid for Young Scientists (B)

    NAKAYAMA Koh

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    Grant amount:\4,290,000 ( Direct Cost: \3,300,000 、 Indirect Cost:\990,000 )

    Organisms respond to hypoxia condition by regulating respiration and metabolism to maintain homeostasis. It is not clear yet what is the 'oxygen sensor' molecule in vivo. In the present study, we have characterized the hypoxia complex which is formed by prolyl-hydroxylase PHD3. As a result, we identified several different molecules which would play roles in oxygen sensing. PDH regulated the metabolism, while PRP19 suppressed the cell death in hypoxia treated cells.

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  • 低酸素応答における細胞内酸素センサーの同定と解析

    Grant number:19890060  2007 - 2008

    日本学術振興会  科学研究費助成事業 若手研究(スタートアップ)  若手研究(スタートアップ)

    中山 恒

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    Grant amount:\3,095,000 ( Direct Cost: \2,690,000 、 Indirect Cost:\405,000 )

    低酸素応答における低酸素コンプレックスの決定
    低酸素応答におけるシグナル伝達機構の解析を、プロリン水酸化酵素PHD3が形成する低酸素コンプレックスに着目して進めた。培養細胞にPHD3を外来的に発現させ、免疫沈降法によりPHD3コンプレックスを精製した。精製したコンプレックスを二次元電気泳動で展開し、質量分析法により構成タンパク質の決定を行った。一連の解析11回の試行で108のタンパク質スポットを決定した。これらのスポットの情報をデータベースと照合し、繰り返し得られるもの、異なるアプローチで同様に得られるものを指標として、三つの分子を主たる解析対象として絞り込んだ。これら三分子に関して遺伝子クローニングを行い、その発現とPHD3との結合を培養細胞の系で検証した。本研究で得られた成果の一部は、BMB2007学会(2007年12月 横浜)において発表した。
    酸素センシング機構に働くタンパク質
    生物の酸素センシング機構にはPHD3低酸素コンプレックスの形成が関与していることを仮説として、ゲル濾過法を用いて、低酸素コンプレックスを分子量ごとに分画した。質量分析により得られた候補タンパク質の発現をゲル濾過分画内で確認し、低酸素コンプレックス形成への関与を示した。

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  • 低酸素応答のシグナル伝達機構

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    Grant type:Competitive

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Teaching Experience

  • Molecular Pharmacology

    2018 - 2020 Institution:Hosei University

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  • Pharmacology Practice Courseractice Course

    2018 Institution:Tokyo Medical and Dental University

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  • Pharmacology

    Institution:Asahikawa Medical College

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Social Activities

  • ひらめき☆ときめきサイエンス

    Role(s): Organizing member, Demonstrator

    旭川医科大学・医学部・薬理学講座  ひらめき☆ときめきサイエンス 中学生向け実験講座  2024.7

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    Type:Other

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  • 開学50周年記念 市民公開講座

    Role(s): Lecturer, Informant

    旭川医科大学  開学50周年記念 市民公開講座  2023.9

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    Type:Lecture

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Academic Activities

  • シンポジウム「タンパク質のプロセシング機構の解明からめざす疾患バイオマーカーの創生」のオーガナイズ(第98回日本生化学会大会)

    Role(s): Planning, management, etc.

    中山 恒・白壁恭子  2025.11

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  • シンポジウム「領域横断的アプローチで解き明かす低酸素応答システム―低酸素創薬への展望―」のオーガナイズ(APPW2025:日本解剖・生理・薬理学会合同年会)

    Role(s): Planning, management, etc.

    中山 恒・冨田修平  2025.3

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    Type:Competition, symposium, etc. 

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