Oligosaccharide administration improved clearance of infectious pathogens in acute inflammatory phase
Project/Area Number |
25461518
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Infectious disease medicine
|
Research Institution | Fukushima Medical University |
Principal Investigator |
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
Keywords | IL-13 / TGFβ / 炎症性サイトカイン / Th1関連応答 / インフラマソーム / オリゴ多糖体 / 静脈感染 / IL-1β / 樹状細胞 / リンパ節 / ゼプシス / 初期抗体 / TNFα / バイオマーカー / 炎症蛋白 / IgM / 自然抗体 / 血流感染 / 抗炎症作用 |
Outline of Final Research Achievements |
To clarify a role of IL-13 in early host resistance to streprococci, and C. albicans, murine airway and intravenous infection models were used. A low dose administration of these pathogens induced natural and early acquired IgM protection, while high dose administration promoted rapid local inflammatory responses to lung and kidney as infected local organs. In high dose administration, IL-13 suppressed IL-1β, CXCL2 and TNFα that may be detrimental to host for pathogen elimination. However late IL-17A was dependent on TGFβ synthesis, which is also strictly dependent on IL-13. This anti-inflammatory role of IL-13 may be promoted with a chitin-oligomer as an oligosaccharides. Oligosaccharide-IL-13-TGFβ cascades may become more critical for a recovery from sepsis as it suppresses an excessive inflammasome activation during a fatal septic condition. The in vivo finding above was supported in vitro tests of bone-marrow derived cells with additional recombinant (r)IL-13, and rTGFβ.
|
Report
(4 results)
Research Products
(20 results)
-
[Journal Article] Expression of activation-induced cytidine deaminase enhances the clearance of pneumococcal pneumonia: evidence of a subpopulation of protective anti-pneumococcal B1a cells2016
Author(s)
Yamamoto Natsuo, Kerfoot SM, Hutchinson AT, Dela Cruz CS, Nakazawa N, Szczepanik M, Majewska-Szczepanik M, Nazimek K, Ohana N, Bryniarski K, Mori T, Muramatsu M, Kanemitsu K, Askenase PW
-
Journal Title
Immunology
Volume: 147
Issue: 1
Pages: 97-113
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
[Journal Article] A subset of AID-dependent B-1a cells initiates hypersensitivity and pneumococcal pneumonia resistance2016
Author(s)
Askenase PW, Bryniarski K, Paliwal V, Kerfoot SM, Hutchinson AT, van Loveren H, Campos R, Itakura Atsuko, Majewska-Szczepanik M, Yamamoto Natsuo, Nazimek K, Szcepanik M, Ptak W
-
Journal Title
Annals of the New York Academy of Sciences
Volume: 1362
Issue: 1
Pages: 200-214
DOI
Related Report
Peer Reviewed / Int'l Joint Research
-
-
-
-
[Journal Article] Defect of CARD9 leads to impaired accumulation of IFN-γ -producing memory-phenotype T cells in lungs and increased susceptibility to pulmonary infection with Cryptococcus neoformans2014
Author(s)
Yamamoto H, Nakamura Y, Sato K, Takahashi Y, Nomura T, Miyasaka T, Ishii K, Hara H, Yamamoto N, Kanno E, Iwakura Y, Kawakami K
-
Journal Title
Infect. Immun
Volume: 82
Issue: 4
Pages: 1606-1615
DOI
Related Report
Peer Reviewed
-
[Presentation] IL-13-dependent biomarkers with liver differentiation after pneumococcal sepsis during rapid inflammatory phase2016
Author(s)
Yamamoto N, Nakamura K, Arai K, Dela Cruz C, Machida T, SUzuki Y, Ogura Y, Abe Y, Sekine H, Iseki K, Askenase P, Kanemitsu K
Organizer
International Congress of Immunology 2016
Place of Presentation
Melbourne, Australia
Year and Date
2016-08-23
Related Report
Int'l Joint Research
-
-
-
-
-
-
[Presentation] , Innate protective responses of B1 cells dependent on activation-induced cytidine deaminase (AID) and interleukin-132013
Author(s)
Yamamoto N, Nakazawa N, Steven MK, DelaCruz C,Ohana N, Askenase PW, Kanemitsu K
Organizer
15th International Congress of Immunology, Milan, Italy
Place of Presentation
Milan, Italy
Related Report
-
-
-
-
-
-
-