Elucidating the mechanism of construction of intratumor heterogeneity by tumor-associated glycan
Project/Area Number |
16K07123
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Tumor biology
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Research Institution | The University of Tokyo (2018) Sapporo Medical University (2016-2017) |
Principal Investigator |
Takamiya Rina 東京大学, 大学院医学系研究科(医学部), 特任助教 (70365419)
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Co-Investigator(Kenkyū-buntansha) |
鈴木 拓 札幌医科大学, 医学部, 教授 (20381254)
大坪 和明 熊本大学, 大学院生命科学研究部(保), 教授 (30525457)
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | がん糖鎖 / メチル化 / メタボローム / 糖鎖 / メタボローム解析 / メチル化解析 / 三次元培養 / 細胞周期 / エピゲノム解析 / 糖鎖抗原 / がん微小環境 / 代謝 |
Outline of Final Research Achievements |
Sialyl-Tn antigen, which is synthesized by a glycosyltransferase ST6GalNAc-I and abnormally expressed in malignant types of cancers. To elucidate whether sialyl-Tn antigen contribute to metabolic reprogramming, we performed metabolome analysis using capillary electrophoresis mass spectrometry (CE-MS). Sialyl-Tn antigen induced pentose phosphate pathway and nucleotide synthesis in H157 cells. Sialyl-Tn antigen expressed on H157 cells also induced the production of oncometabolite, 2-hydroxyglutarate, but did not affects genome-wide alterations in DNA methylation. These findings indicate that sialyl-Tn antigen may be a key player of metabolic reprogramming in the processes of tumor progression.
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Academic Significance and Societal Importance of the Research Achievements |
これまで、がん糖鎖は腫瘍マーカーとして役割のみ捉えられていた。しかしながら、sialyl-Tn糖鎖抗原は、腫瘍マーカーとしての役割だけではなく、がん転移や酸化ストレスへの耐性への機能、さらに未だ不明な点が多いがん細胞内の代謝改変に関わる機能分子であることがわかった。このようながん細胞の代謝改変に影響を与える糖鎖はこれまで報告がなく、この研究成果の学術的意義は非常に高いと考える。
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Report
(4 results)
Research Products
(14 results)
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[Journal Article] Surfactant protein A down-regulates epidermal growth factor receptor by mechanisms different from those of surfactant protein D2017
Author(s)
Yoshihiro Hasegawa, Motoko Takahashi, Shigeru Ariki, Atsushi Saito, Yasuaki Uehara, Rina Takamiya, Koji Kuronuma, Hirofumi Chiba, Yuji Sakuma, Hiroki Takahashi, Yoshio Kuroki
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Journal Title
J Bill Chem
Volume: 292
Issue: 45
Pages: 18565-18576
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Surfactant protein A inhibits growth and adherence of uropathogenic Escherichia coli to protect the bladder from infection.2017
Author(s)
Hashimoto J., Takahashi M., Satio A., Murata M., Kurimura Y., Nishitani C., Takamiya R., Uehara Y., Hasegawa Y., Hiyama Y., Sawada N., Takahashi S., Masumori N., Kuroki Y., Ariki S.
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Journal Title
J. Immunol.
Volume: 198
Issue: 7
Pages: 2898-2905
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Surfactant Protein A (SP-A) and SP-A-derived Peptide Attenuate Chemotaxis of Mast Cells Induced by Human β-defensin 3.2017
Author(s)
Uehara Y., Takahashi M., Murata M., Saito A., Takamiya R., Hasegawa Y., Kuronuma K., Chiba H., Hashimoto J., Sawada N., Takahashi H., Kuroki Y., Ariki S.
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Journal Title
Biochem. Biophys. Res. Commun.
Volume: 485
Issue: 1
Pages: 107-112
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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