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膵癌の予後診断を目的とした炎症性サイトカインによる接着分子の制御機構の解明

Research Project

Project/Area Number 14770648
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Digestive surgery
Research InstitutionNagoya City University

Principal Investigator

沢井 博純  名古屋市立大学, 大学院・医学研究科, 助手 (40336681)

Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2003: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2002: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywords膵癌 / 接着分子 / Interleukin-1α / 予後診断 / インテグリン
Research Abstract

膵癌細胞におけるIL-1αによるintegrin発現増強と、転移・浸潤能亢進についての検討
1)HUVEC(ヒト臍帯静脈内皮細胞)との共培養状態における検討
自らがIL-1αを分泌する膵癌細胞高肝転移株では、IL-8の自己分泌能亢進を介して、血管新生を亢進、さらには細胞外マトリックスに対する浸潤能も亢進させていることを確認した。
転写因子・遺伝子の関与についての検討
1)AP-1の発現と膵癌細胞増殖・浸潤能についての検討
AP-1 activityは、高転移株(SW1990,BxPC-3)より非転移株(MIA PaCa-2,Capan-2)で高いことを見出した。さらに、MT-21(adenine nucleocide translocation inhibitor)は、AP-1 activityを活性化することで、JNK/AP-1pathwayを介してその下流遺伝子の発現をコントロールし、膵癌細胞の増殖・浸潤能を抑制していることが示唆された。
2)アンチセンス遺伝子導入に関する検討
マウス脾被膜下に注入した膵癌細胞の肝転移能は有意に減弱した。また、IL-1αのアンチセンス遺伝子導入膵癌細胞のECM proteinに対する接着・浸潤能に変化を生ずるかどうかについて検討したところ、高肝転移株において、ECM proteinに対する接着・浸潤能は有意に減弱した。
以上の結果は、膵癌の肝転移機序において、IL-1αが転写因子、特にAP-1を介したシグナル伝達経路が大きな役割を果たしていることを示しているものと考える。

Report

(2 results)
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] Hirozumi Sawai: "Expression of integrin in intraductal papillary-mucinous tumors of the pancreas as an indicator of malignancy"Pancreas. 28. 20-24 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hirozumi Sawai: "Interleukin-1α enhances integrinα6β1 expression and metastatic capability of human pancreatic cancer"Oncology. 65. 167-173 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hirozumi Sawai: "Expression and prognostic roles of integrins and interleukin-1 receptor type 1 in patients with ductal adenocarcinoma of the pancreas"Digestive Diseases & Sciences. 48. 1248-1250 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hirozumi Sawai: "Multiple primary cancers of the duodenum and sigmoid colon : report of two cases"Digestive Diseases & Sciences. 48. 1268-1272 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hirozumi Sawai: "Tumor-forming pancreatitis : diagnosed preoperatively as intraductal papillary-mucinous tumor : report of a case"Pancreas. 26. 207-210 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hirozumi Sawai: "Immunohistochemical analysis of intraductal papillary-mucinous tumors of the pancreas"Proceedings of the 38th Congress of the European society for Surgical Research. 181-184 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hitoshi Funahashi: "Alteration of integrin expression by glial cell line-derived neurotrophic factor (GDNF) in human pancreatic cancer cells"Pancreas. 27. 190-196 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hitoshi Funahashi: "Invasion system of pancreatic cancer : enhancement of integrin expression by glial cell line-derived neurotrophic factor (GDNF)"Proceedings of the 38th Congress of the European society for Surgical Research. 109-114 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 沢井 博純: "癌転移-基礎と臨床アップデート-膵癌の転移・浸潤に対するIL-1αの影響(Interleukin-1α enhances integrin expression and metastatic and invasive behavior of pancreatic cancer)"日本臨床. 61. 607-611 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 沢井 博純: "癌の悪性度と遺伝子解析"Surgery Frontier. 10. 33-38 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 沢井 博純: "Interleukin-1αによるヒト膵癌細胞株におけるインテグリン発現変化"膵臓. 17. 172-174 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hirozumi Sawai: "Expression of integrins in a patient of cancer tissue of the Vater's ampulla complicated by pancreas divisum"European Journal of Gastroenterology & Hepatology. in press.

    • Related Report
      2003 Annual Research Report
  • [Publications] Yoichi Matsuo: "Enhanced angiogenesis due to inflammatory cytokines from pancreatic cancer cell lines and relation to metastatic potential"Pancreas. in press.

    • Related Report
      2003 Annual Research Report
  • [Publications] Hiroki Takahashi: "Glial cell line-derived neurotrophic factor (GDNF) enhances nuclear factor-κB activity and invasive potential in human pancreatic cancer cells"Pancreas. in press.

    • Related Report
      2003 Annual Research Report
  • [Publications] Masaki Sakamotgo: "MT-21 inhibits the cell growth and invasiveness through AP-1 in pancreatic cancer cell lines"Nagoya Medical Journal. in press.

    • Related Report
      2003 Annual Research Report
  • [Publications] Hirozumi Sawai: "Enhancement of Integrins by Interleukin-1α, and Their Relationship with Metastatic and Invasive Behavior of Human Pancreatic Ductal Adenocarcinoma Cells"Journal of Surgical Oncology. 82. 51-56 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 沢井 博純: "癌の悪性度と遺伝子解析"Surgery Frontoer. 10. 33-38 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 沢井 博純: "膵癌におけるInterleukin-1αによるインテグリン発現の増強と転移能の関係"日本消化器外科学会雑誌. 35・6. 582-589 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hirozumi Sawai: "Interleukin-1α Enhances Integrin α6β1 Expression and Metastatic Capability of Human Pancreatic Cancer"Oncology. (in press).

    • Related Report
      2002 Annual Research Report
  • [Publications] Hitoshi Funahashi: "Pancreatic cancer nerve invasion mechanisms : alteration of integrin expression by glial cell line-derived neurotrohic factor (GDNF) in human pancreatic cancer cells"Pancreas. (in press).

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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