Expression mechanism and pathological significance of Pentraxin 3 in macrophages and neutrophils.
Project/Area Number |
21590397
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Human pathology
|
Research Institution | Niigata University |
Principal Investigator |
NAITO Makoto 新潟大学, 医歯学系, 教授 (30045786)
|
Co-Investigator(Kenkyū-buntansha) |
OHASHI Riuko 新潟大学, 医歯学系, 助教 (20447600)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
|
Keywords | マクロファージ / 好中球 / Pentraxin 3 / 潰瘍性大腸炎 / 炎症性腸疾患 / 特殊顆粒 / PTX3 / NETs / 特殊顆粒PTX3 |
Research Abstract |
Neutrophils in colonic mucosal tissue of patients with ulcerative colitis were main cellular source of Pentraxin 3(PTX3) protein, suggesting that PTX3 protein may contribute to cell-mediated immune defense in inflamed colon tissue of patients with ulcerative colitis. PTX3 protein was found to be present together with lactoferrin^+-specific granules localized in neutrophils. Upon IL-8 stimulation, PTX3 is released from PMNs and localized in Neutrophil Extracellular Traps(NETs) formed by extruded DNA. Macrophages showed granular positivity of PTX3. Secretion of PTX3 from stimulated neutrophils and macrophages was confirmed in culture. Binding of PTX3 on NETs appeared to be a defense mechanism against pathogens.
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Report
(4 results)
Research Products
(18 results)
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[Journal Article] Long pentraxin 3(PTX3) expression and release by neutrophils in vitro and in ulcerative colitis2011
Author(s)
Savchenko AS, Inoue A, Ohashi R, Jiang S, Hasegawa G, Tanaka T, Hamakubo T, Kodama T, Aoyagi Y, Ushiki T, Naito M
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Journal Title
Pathol Int
Volume: 61
Pages: 290-297
NAID
Related Report
Peer Reviewed
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[Journal Article] The proteomic profile of circulating pentraxin 3(PTX3) complex in sepsis demonstrates the interaction with azurocidin 1 and other components of neutrophil extracellular traps2011
Author(s)
Daigo K, Yamaguchi N, Kawamura T, Matsubara K, Jiang S, Ohashi R, Sudou Y, Kodama T, Naito M, Inoue K, Hamakubo T
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Journal Title
J Biol Chem
Volume: 286(1)
Pages: 674-86
Related Report
Peer Reviewed
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[Journal Article] Expression of liver X receptor α and lipid metabolism in granulocyte-macrophage colony-stimulating factor-induced human monocyte-derived macrophage.2009
Author(s)
Kazawa T, Kawasaki T, Sakamoto A, Imamura M, Ohshi R, Jiang S, Tanaka T, Iwanari H, Hamakubo T, Sakai J, Kodama T, Naito M
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Journal Title
Pathol Int 59(3)
Pages: 152-160
NAID
Related Report
Peer Reviewed
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