Okayama University Faculty of Medicine, Dentistry, and Pharmaceutical Sciences, Department of Dental Pharmacology

岡山大学学術研究院医歯薬学域歯科薬理学分野

Principal Investigators and faculties


Kuniaki Okamoto, DDS, PhD 

investigating cellular protein transport system controlled by Rab family and osteoblasts, key cells in periodontal diseases and osteoporosis.

Takanori Eguchi, DDS, PhD

investigating cells, bodies, and cancers regulated by molecular functions and transport through extracellular vesicles including exosomes.


Katsuki Takebe, DDS, PhD

investigating protein structures, interaction, and functions in medicine, dentistry and pharmaceutical sciences.

研究者,教員

岡元 邦彰 

タンパク質はどのように輸送されて機能し,分解されるのか. 歯周病や骨粗鬆症の鍵を握る破骨細胞とは,どんな細胞か. 小胞輸送を掌るRabタンパク質ファミリーを切り口に解明する.


江口 傑徳

私たちの体は,細胞が作り出す微粒子に操られている? エクソソームをはじめとする細胞外小胞(EV)を切り口に,がんや骨のしくみを紐解き,新医療創成を目指す.

武部 克希

タンパク質はどんな構造で,どのように機能し,薬はどうやって働くのか.分子構造を紐解き,新薬開発を目指す.

MISEV2023: the international guideline for EV research

Minimal information for studies of extracellular vesicles (MISEV2023): from basic to advanced approaches. Welsh JA* et al, MISEV Consortium: Eguchi T et al, Witwer KW*. Journal of Extracellular Vesicles, 2024 Feb;13(2):e12404.

Top Articles

analyzed by Elsevier SciVal in 2024 Jan

Top 1% article 

Sheta M et al, Eguchi T*. Extracellular vesicles: new classification and tumor immunosuppression. Biology (Basel) 2023, 12(1):110.

Top 2% articles

Ono K et al, Eguchi T*.Triple Knockdown of CDC37, HSP90-alpha and HSP90-beta Diminishes Extracellular Vesicles-Driven Malignancy Events and Macrophage M2 Polarization in Oral Cancer.Journal of Extracellular Vesicles 2020, 9(1):1769373.
(2020 Journal Impact Factor = 25.841) 

 

Taha EA, Ono K, Eguchi T*.Roles of Extracellular HSPs as Biomarkers in Immune Surveillance and Immune Evasion. International Journal of Molecular Sciences 2019, 20(18):4588. > 150 citations 

Ono K, Eguchi T*, et al. HSP-Enriched Properties of Extracellular Vesicles Involve Survival of Metastatic Oral Cancer Cells. Journal of Cellular Biochemistry 2018, 119(9):7363-76. > 150 citations 


Eguchi T* et al. Comprehensive Method for Exosome Isolation and Proteome Analysis for Detection of CCN Factors in/on Exosomes. In: Takigawa M (eds) CCN Proteins.  

(2022). Methods in Molecular Biology, vol 2582. Humana, New York, NY. pp.59-76.

Ono K et al, Eguchi T* Western Blot Protocols for Analysis of CCN Proteins and Fragments in Exosomes, Vesicle-free Fractions, and Cells. In: Takigawa M. (eds) CCN Proteins.(2022). Methods in Molecular Biology, vol 2582. Humana, New York, NY. pp.39-57.   

 
Prince TL* et al.Cdc37 as a Co-chaperone to Hsp90. In: Edkins, A.L., Blatch, G.L. (eds) The Networking of Chaperones by Co-Chaperones. Subcellular Biochemistry, (2022) vol 101. Springer, Cham. pp.141-158. 

Top 3% articles 

Eguchi T* et al.Cancer Extracellular Vesicles, Tumoroid Models and Tumor Microenvironment.Seminars in Cancer Biology 2022,86(Pt 1):112-126

(2021 Journal Impact Factor = 17.012)

Eguchi T* et al. Organoids with Cancer Stem Cell-like Properties Secrete Exosomes and HSP90 in a 3D Nanoenvironment. PLoS One 2018,13(2):e0191109. > 100 citations 

  

Eguchi T* et al. OstemiR: A Novel Panel of microRNA Biomarkers in Osteoblastic and Osteocytic Differentiation from Mesenchymal Stem Cells. PLoS One 2013, 8(3):e58796. >150 citations 

Eguchi T et al.Novel Transcription-Factor-Like Function of Human Matrix Metalloproteinase 3 Regulating the CTGF/CCN2 Gene. Molecular and Cellular Biology 2008, 28(7): 2391-2413. > 200 citations

Top 4% articles 

Oo MW et al. Resident Stroma-secreted Chemokine CCL2 Governs Myeloid-derived Suppressor Cells in the Tumor Microenvironment. JCI Insight, 2022,7(1);e148960

(2021 Journal Impact Factor = 9.533

Seyama M et al, Outer membrane vesicles of Porphyromonas gingivalis attenuate insulin sensitivity by delivering gingipains to the liver. Biochimica et Biophysica Acta – Molecular Basis of Disease 2020,1866(6):165731

Eguchi T* et al. Cell Stress Induced Stressome Release Including Damaged Membrane Vesicles and Extracellular HSP90 by Prostate Cancer Cells. Cells 2020, 9(3):755 

Research Themes

Research and development of exosomes, other vesicles, and delivery systems
Development and applications of assay and screening systems for diseases and regeneration

Research and development on cancer, tumor microenvironment and immunology
Research and development on cell differentiation and bone metabolism
Research and development of protein and drug functions based on structural biology and computational science
Drug discovery and development for therapeutics and diagnostics
Mechanisms and solution of drug resistance

Research and development on organoids, cancer-on-a-chip, and bone-on-a-chip
Research and development on metabolism, stress, and RNA regulation
Research and development on cancer-specific aberration and tumor immunology
Research and development on protease function and inhibition
Construction and utilization of databases and portals

研究課題

エクソソーム等の小胞とデリバリーシステムに関する研究開発

疾患や再生に関わるアッセイ系やスクリーニング系の開発と利活用

がんと微小環境に関する研究開発

細胞分化と骨代謝に関する研究開発

構造生物学および計算科学に基づくタンパク質と薬剤の機能に関する研究開発

治療薬や診断薬などの創薬に関する研究開発

薬剤耐性の機構および解決に関する研究開発

オルガノイド,癌チップ,骨チップに関する研究開発

代謝,ストレス,RNA制御に関する研究開発

がん特有の異常および腫瘍免疫に関する研究開発

プロテアーゼの機能と阻害に関する研究開発

データベースとポータルの構築と利活用に関する研究


Voice of students

It's truly heartwarming (。・ω・。)ノ. 
I will channel my energy into designing experiments and start my research with peaceful mood, which brings me a sense of creativity and a desire for exploration.
We can collaborate more in the future. 
Okayama is a beautiful city, and both I and my lab friends thoroughly enjoy our research and daily life here. 
I am looking forward to the coming Spring with sakura blossoms blooming.
 I hope everything is going smoothly for you, and wish you good health and happiness.

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PROJECTS

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VOICE OF A STUDENT

Vesicle Transport

Vesicle Transport

Experience

Bone Metabolism
Osteoclast

Exosome, Extracellular Vesicles

Excursion

MIcroenvironment

Presentation

Intercellular Communication

Environment

Organoid

Informatics

Research

Education

Experiments