Development of therapeutic agent targeting desmoplasia in pancreatic cancer and novel drug delivery system

• Project/Area Number: 15K10189
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Digestive surgery
• Research Institution: Kyushu University
• Principal Investigator: SHIRAHANE Kengo 九州大学, 医学研究院, 共同研究員 (10529803)
• Co-Investigator(Kenkyū-buntansha): 難波江 俊永 九州大学, 大学病院, 助教 (10467889) ; 鬼丸 学 九州大学, 医学研究院, 共同研究員 (80529876) ; 大内田 研宙 九州大学, 大学病院, 講師 (20452708)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 膵癌 / desmoplasia / オートファジー / 化合物ライブラリー / 治療抵抗性 / drug delivery system / カルパイン

Outline of Final Research Achievements

We have reported that activation of pancreatic stellate cells(PSCs) is associated with autophagy and inhibiting autophagy results in suppression of pancreatic cancer progression and metastasis. Thus, autophagy in PSCs is a possible therapeutic target in pancreatic cancer.
Furthermore, we have developed a high-throughput screening system, based on a phenomenon that lipid droplets inside PSCs decrease during activation, to find PSCs suppressive compounds. In detail, candidate agents selected from compound library were administered to PSC, followed by lipid droplets dye with BODIPY, a fluorescent lipid dye. Then quantified the intensity of BODIPY fluorescence and found compounds which suppressed PSCs activation. Using this method we have found some compounds which may lead PSCs into quiescent state.

Research Products

• [Journal Article] Pancreatic stellate cells reorganize matrix components and lead pancreatic cancer invasion via the function of Endo180 (2018)
  • Author(s): Koikawa K, Ohuchida K, Takesue S, Ando Y, Kibe S, Nakayama H, Endo S, Abe T, Okumura T, Horioka K, Sada M, Iwamoto C, Moriyama T, Nakata K, Miyasaka Y, Ohuchida R, Manabe T, Ohtsuka T, Nagai E, Mizumoto K, Hashizume M, Nakamura M.
  • Journal Title: Cancer Letters Volume: 412 Pages: 143-154
  • DOI: 10.1016/j.canlet.2017.10.010
  • Peer Reviewed / Open Access
• [Journal Article] Autophagy inhibition enhances antiproliferative effect of salinomycin in pancreatic cancer cells (2017)
  • Author(s): Endo Sho、Nakata Kohei、Sagara Akiko、Koikawa Kazuhiro、Ando Yohei、Kibe Shin、Takesue Shin、Nakayama Hiromichi、Abe Toshiya、Okumura Takashi、Moriyama Taiki、Miyasaka Yoshihiro、Ohuchida Kenoki、Ohtsuka Takao、Mizumoto Kazuhiro、Nakamura Masafumi
  • Journal Title: Pancreatology Volume: 17 Issue: 6 Pages: 990-996
  • DOI: 10.1016/j.pan.2017.08.009
  • Peer Reviewed
• [Journal Article] Autophagy is required for activation of pancreatic sstellate cells, associated with pancreatic cancer progression and promotes growth of pancreatic tumors in mice. (2017)
  • Author(s): Endo S, Nakata K, Ohuchida K, Takesue S, Nakayama H, Abe T, Koikawa K, Okumura T, Sada M, Horioka K, Zheng B, Mizuuchi Y, Iwamoto C, Murata M, Moriyama T, Miyasaka Y, Ohtsuka T, Mizumoto K, Oda Y, Hashizume M, Nakamura M.
  • Journal Title: Gastroenterology Volume: 印刷中 Issue: 6 Pages: 1492-1506
  • DOI: 10.1053/j.gastro.2017.01.010
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] オートファジーは膵星細胞の活性化に関与しており、その抑制は膵癌の進展を制御する (2017)
  • Author(s): 仲田興平、遠藤翔、大内田研宙、水元一博、小田義直、橋爪誠、中村雅史
  • Organizer: 第76回日本癌学会学術総会
• [Presentation] 膵星細胞が誘導する新たな膵癌局所微小浸潤機序の解明 (2017)
  • Author(s): 肥川和寛、大内田研宙、森山大樹、仲田興平、宮坂義浩、真鍋達也、大塚隆生、永井英司、水元一博、中村雅史
  • Organizer: 第25回日本消化器関連学会週間 第15回日本消化器外科学会大会
• [Presentation] 膵癌局所浸潤を先導するleading cell －膵星細胞がつくる膵癌局所微少環境の機序解明－ (2017)
  • Author(s): 肥川和寛、大内田研宙、安藤陽平、岐部晋、中山宏道、武居晋、森山大樹、仲田興平、宮坂義浩、真鍋達也、大塚隆生、永井英司、水元一博、中村雅史
  • Organizer: 第38回癌免疫外科研究会
• [Presentation] 膵癌の癌関連線維芽細胞におけるオートファジーの役割 (2016)
  • Author(s): 遠藤翔、仲田興平、佐田政史、大内田研宙、阿部俊也、肥川和寛、奥村隆志、佐田政史、堀岡宏平、水内祐介、大塚隆生、植木隆、永井英司、水元一博、小田義直、中村雅史
  • Organizer: 第116回日本外科学会定期学術集会
  • Place of Presentation: リーガロイヤルホテル大阪(大阪市）
  • Year and Date: 2016-04-16