Expression and activity of ion transporters in pancreatic cancer stem cells.
Project/Area Number |
17K10710
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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 |
Digestive surgery
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Research Institution | Kyoto Prefectural University of Medicine |
Principal Investigator |
Toma Atsushi 京都府立医科大学, 医学(系)研究科(研究院), 講師 (30516191)
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Co-Investigator(Kenkyū-buntansha) |
大辻 英吾 京都府立医科大学, 医学(系)研究科(研究院), 教授 (20244600)
塩崎 敦 京都府立医科大学, 医学(系)研究科(研究院), 助教 (40568086)
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Project Period (FY) |
2017-04-01 – 2020-03-31
|
Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
|
Keywords | 膵癌 / 膵臓外科学 / 癌幹細胞 / イオンチャネル |
Outline of Final Research Achievements |
Cells exhibiting strong ALDH1 activity were isolated from PK59 pancreatic cancer cells by cell sorting, and cancer stem cells (CSCs) were then generated with the sphere formation assay. The gene expression profiles of CSCs were examined by microarray analysis, and the expression of 57 genes related to ion channels, including voltage-gated potassium channel (Kv), was upregulated. The Kv inhibitor, 4-aminopyridine (4-AP) was more cytotoxic at a lower concentration in CSCs than in non-CSCs, and effectively decreased the number of tumorspheres. Furthermore, 4-AP significantly decreased the cell population that strongly expressed ALDH1 among PK59 cells. In a xenograft model in nude mice, injection of PK59 cells treated with 4-AP resulted in significantly smaller tumor volumes than those of nontreated cells. These results suggest that Kv is involved in the maintenance of CSCs, and that its specific inhibitor, 4-AP, has potential as a targeted therapeutic agent against pancreatic carcinoma.
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Academic Significance and Societal Importance of the Research Achievements |
電位依存性カリウムチャネルが膵癌幹細胞において高発現し、その阻害剤である4-aminopyridineが癌幹細胞特異的に抑制効果を示すことを新たに見出した。4-aminopyridineは多発性硬化症に対し臨床で用いられている薬剤であり、その抗腫瘍効果を明らかにしたことの社会的意義は大きいと考えられる。
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Report
(4 results)
Research Products
(64 results)
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[Journal Article] ANO9 Regulated Cell Cycle in Human Esophageal Squamous Cell Carcinoma.2020
Author(s)
Katsurahara K, Shiozaki A, Kosuga T, Kudou M, Shoda K, Arita T, Konishi H, Komatsu S, Kubota T, Fujiwara H, Okamoto K, Kishimoto M, Konishi E, Marunaka Y, Otsuji E.
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Journal Title
Ann Surg Oncol.
Volume: ー
Issue: 9
Pages: 3218-3230
DOI
Related Report
Peer Reviewed
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[Journal Article] The expression and role of TRPV2 in esophageal squamous cell carcinoma.2019
Author(s)
Kudou M, Shiozaki A, Yamazato Y, Katsurahara K, Kosuga T, Shoda K, Arita T, Konishi H, Komatsu S, Kubota T, Fujiwara H, Okamoto K, Kishimoto M, Konishi E, Marunaka Y, Otsuji E.
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Journal Title
Sci Rep.
Volume: 9
Issue: 1
Pages: 16055-16055
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Effect of low temperature on the regulation of cell volume after hypotonic shock in gastric cancer cells.2019
Author(s)
Shiozaki A, Yamazato Y, Kosuga T, Kudou M, Shoda K, Arita T, Konishi H, Komatsu S, Kubota T, Fujiwara H, Okamoto K, Marunaka Y, Otsuji E.
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Journal Title
Int J Oncol.
Volume: 55
Pages: 905-914
DOI
Related Report
Peer Reviewed
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[Journal Article] LRRC8A Expression Influences Growth of Esophageal Squamous Cell Carcinoma.2019
Author(s)
Konishi T, Shiozaki A, Kosuga T, Kudou M, Shoda K, Arita T, Konishi H, Komatsu S, Kubota T, Fujiwara H, Okamoto K, Kishimoto M, Konishi E, Marunaka Y, Otsuji E.
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Journal Title
Am J Pathol.
Volume: 189
Issue: 10
Pages: 1973-1985
DOI
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Peer Reviewed
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[Journal Article] Anion exchanger 2 suppresses cellular movement and has prognostic significance in esophageal squamous cell carcinoma2018
Author(s)
Shiozaki A, Hikami S, Ichikawa D, Kosuga T, Shimizu H, Kudou M, Yamazato Y, Kobayashi T, Shoda K, Arita T, Konishi H, Komatsu S, Kubota T, Fujiwara H, Okamoto K, Kishimoto M, Konishi E, Marunaka Y, Otsuji E
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Journal Title
Oncotarget
Volume: 9
Issue: 40
Pages: 25993-26006
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Detection of fusion gene in cell-free DNA of a gastric synovial sarcoma.2018
Author(s)
Ogino S, Konishi H, Ichikawa D, Hamada J, Shoda K, Arita T, Komatsu S, Shiozaki A, Okamoto K, Yamazaki S, Yasukawa S, Konishi E, Otsuji E.
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Journal Title
World J Gastroenterol.
Volume: 24
Issue: 8
Pages: 949-956
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Esophageal cancer stem cells are suppressed by tranilast, a TRPV2 channel inhibitor.2017
Author(s)
Shiozaki A, Kudou M, Ichikawa D, Fujiwara H, Shimizu H, Ishimoto T, Arita T, Kosuga T, Konishi H, Komatsu S, Okamoto K, Marunaka Y, Otsuji E.
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Journal Title
J Gastroenterol
Volume: 印刷中
Issue: 2
Pages: 197-207
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Expression and role of anion exchanger 1 in esophageal squamous cell carcinoma.2017
Author(s)
Shiozaki A, Kudou M, Ichikawa D, Shimizu H, Arita T, Kosuga T, Konishi H, Komatsu S, Fujiwara H, Okamoto K, Kishimoto M, Marunaka Y, Otsuji E.
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Journal Title
Oncotarget
Volume: 8
Issue: 11
Pages: 17921-17935
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Na+/H+ exchanger 1 has tumor suppressive activity and prognostic value in esophageal squamous cell carcinoma.2017
Author(s)
Ariyoshi Y, Shiozaki A, Ichikawa D, Shimizu H, Kosuga T, Konishi H, Komatsu S, Fujiwara H, Okamoto K, Kishimoto M, Marunaka Y, Otsuji E.
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Journal Title
Oncotarget
Volume: 10
Issue: 2
Pages: 2209-2223
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Heat shock exerts anticancer effects on liver cancer via autophagic degradation of aquaporin 5.2017
Author(s)
Kudou M, Shiozaki A, Kosuga T, Shimizu H, Ichikawa D, Konishi H, Morimura R, Komatsu S, Ikoma H, Fujiwara H, Okamoto K, Marunaka Y, Otsuji E.
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Journal Title
Int J Oncol
Volume: 50
Issue: 5
Pages: 1857-1867
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Transient Receptor Potential Melastatin 7 as an Independent Prognostic Factor in Human Esophageal Squamous Cell Carcinoma.2017
Author(s)
Nakashima S, Shiozaki A, Ichikawa D, Hikami S, Kosuga T, Konishi H, Komatsu S, Fujiwara H, Okamoto K, Kishimoto M, Konishi E, Otsuji E.
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Journal Title
Anticancer Res
Volume: 37
Issue: 3
Pages: 1161-1167
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] High CD44 gastric cancer stem cells are suppressed by voltage gated Ca2+ channel blocker.2019
Author(s)
Keita Katsurahara, Atsushi Shiozaki, Michihiro Kudou, Katsutoshi Shoda, Tomohiro Arita, Toshiyuki Kosuga, Hirotaka Konishi, Ryo Morimura, Yasutoshi Murayama, Takeshi Kubota, Masayoshi Nakanishi, Hitoshi Fujiwara, Eigo Otsuji.
Organizer
第78回日本癌学会学術総会
Related Report
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[Presentation] The development of novel targeted therapies to over-expressed ion transporters in esophageal cancer stem cells.2019
Author(s)
Yoshihisa Matsumoto, Michihiro Kudou, Atsushi Shiozaki, Toshiyuki Kosuga, Ryo Morimura , Yasutoshi Murayama, Yoshiaki Kuriu , Hisashi Ikoma, Takeshi Kubota, Masayoshi Nakanishi, Hitoshi Fujiwara, Kazuma Okamoto, Eigo Otsuji.
Organizer
第78回日本癌学会学術総会
Related Report
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[Presentation] 食道癌幹細胞特異的に発現するion channelの同定と新規標的治療への応用2018
Author(s)
塩﨑敦, 工藤道弘, 藤原斉, 小西博貴, 庄田勝俊, 有田智洋, 小菅敏幸, 森村玲, 村山康利, 栗生宜明, 生駒久視, 窪田健, 中西正芳, 岡本和真, 大辻英吾
Organizer
JDDW2018(第16回日本消化器外科学会大会)
Related Report
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[Presentation] Functional analysis and prognostic value of sodium iodide symporter (NIS) in gastric cancer2018
Author(s)
Atsushi Shiozaki, Yosuke Ariyoshi, Toshiyuki Kosuga, Michihiro Kudou, Katsutoshi Shoda, Tomohiro Arita, Hirotaka Konishi, Shuhei Komatsu, Takeshi Kubota, Hitoshi Fujiwara, Kazuma Okamoto, Yoshinori Marunaka, Eigo Otsuji
Organizer
第77回日本癌学会学術総会
Related Report
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[Presentation] 落合登志哉, 井上博之, 中辻拡興, 渡邉信之, 吉山敦, 伊藤博士, 當麻敦史, 中村憲司, 森村玲, 生駒久視, 大辻英吾2017
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