Roles of bioactive lipids in regulation of lymphatic plasticity
Project/Area Number |
26293055
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
General pharmacology
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Research Institution | Kitasato University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
藤田 朋恵 獨協医科大学, 医学部, 教授 (20296510)
天野 英樹 北里大学, 医学部, 講師 (60296481)
|
Project Period (FY) |
2014-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2016: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2015: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
|
Keywords | prostaglandin / lymphatic / lymph node / edema / inflammation / metastasis / tumor / chemokine / premetastatic niche / COX-2 / SDF-1 / thromboxane / リンパ管新生 / LPS / TP受容体 / 横隔膜 / VEGF-C / Tリンパ球 / マクロファージ / リンパ管 / リンパ節 / 生理活性脂質 / 腫瘍 / 炎症 / リンパ節転移 / PG / 樹状細胞 / Treg / mPGES-1 / 慢性炎症 / 腹膜炎 / EP受容体 / VEGF / CD11b |
Outline of Final Research Achievements |
The lymphatic system is an important route for cancer dissemination, and lymph node metastasis (LNM) serves as a critical prognostic determinant in cancer patients. COX-2 is expressed in DCs from the early stage in the lymph node subcapsular regions, and COX-2 inhibition markedly suppressed mediastinal LNM. LNM was reduced in mice lacking the PGE2 receptor EP3. Accumulation of Tregs was also COX-2/EP3-dependent. To clarify the roles of cyclooxygenase (COX)-2 in enhancement of lymphangiogenesis during secondary lymphedema, we tested a mouse tail model and evaluated the recurrence of lymph flow. Lymphangiogenesis, together with recurrence of lymph flow after surgical induction of lymphedema, is upregulated by COX-2 possibly via generation of PGs. Lymphangiogenesis plays an important role in wound-healing. Lymphangiogenesis and recruitment of M2 macrophages that produced VEGF-C/D were suppressed in mice treated with a COX-2 inhibitor or lacking either EP3 or EP4 during wound healing.
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Report
(5 results)
Research Products
(32 results)
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[Journal Article] Inhibition of microsomal prostaglandin E synthase-1 facilitates liver repair after hepatic injury in mice.2018
Author(s)
Nishizawa N, Ito Y, Eshima K, Ohkubo H, Kojo K, Inoue T, Raouf J, Jakobsson PJ, Uematsu S, Akira S, Narumiya S, Watanabe M, Majima M.
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Journal Title
J Hepatol.
Volume: S0168-8278(18)
Issue: 1
Pages: 30126-30130
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] BLT1 signalling protects the liver against acetaminophen hepatotoxicity by preventing excessive accumulation of hepatic neutrophils2016
Author(s)
Kojo, K., Ito, Y., Eshima, K., Nishizawa, N., Ohkubo, H., Yokomizo, T., Shimizu, T., Watanabe, M.,Majima, M.
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Journal Title
Sci Rep
Volume: 6
Issue: 1
Pages: 29650-29650
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] PDGFRα plays a crucial role in connective tissue remodeling.2015
Author(s)
Horikawa S, Ishii Y, Hamashima T, Yamamoto S, Mori H, Fujimori T, Shen J, Inoue R, Nishizono H, Itoh H, Majima M, Abraham D, Miyawaki T, Sasahara M.
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Journal Title
Scientific Reports
Volume: Dec 7;5
Issue: 1
Pages: 17948-17948
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Roles of mPGES-1, an inducible prostaglandin E synthase, in enhancement of LPS-induced lymphangiogenesis in a mouse peritonitis model.2015
Author(s)
Matsuda H, Hosono K, Tsuru S, Kurashige C, Sekiguchi K, Akira S, Uematsu S, Okamoto H, Majima M.
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Journal Title
Life Sci.
Volume: 142
Pages: 1-7
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Prostanoid induces premetastatic niche in regional lymph nodes.2014
Author(s)
Ogawa F, Amano H, Eshima Y, Ito Y, Matsui Y, Hosono K, Kitasato H, Iyoda A, Iwabuchi K, Kumagai Y, Satoh Y, Narumiiya S, Majima M.
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Journal Title
J. Clin. Invest.
Volume: 124
Issue: 11
Pages: 4882-4894
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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