2010 Fiscal Year Final Research Report
The effect of human neutrophil peptides on intestinal inflammation as determined by proteomics approaches
Project/Area Number |
21790672
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Gastroenterology
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Research Institution | Kagoshima University |
Principal Investigator |
KANMURA Shuji Kagoshima University, 医学部・歯学部附属病院, 医員 (60448561)
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Project Period (FY) |
2009 – 2010
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Keywords | ディフェンシン / 炎症性腸疾患 / 腸管免疫 / 抗菌ペプチド / プロテオミクス / 潰瘍性大腸炎 / サイトカイン / 好中球 |
Research Abstract |
Human neutrophil peptides (HNPs) 1-3 promoted proliferation of epithelial cell lines at low peptide concentrations ; however, higher peptide concentrations inhibited cellular proliferation. And, treatment with HNPs resulted in the increase expression of interleukin-1 (IL-8), vascular endothelial growth factor (VEGF) and intercellular adhesion molecule-1 (ICAM-1) from epithelial cell lines. Additionally, after administration of HNPs to DSS-induced mouse IBD model, high histological colitis score, weight loss, and shortening of the large intestine were observed as compared to non-treated mice. These results suggest that HNPs increase the expression of proinflammatory cytokines in intestinal epithelial cells and exacerbates experimental colitis.
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[Journal Article] The complement component C3a fragment is a potential biomarker for hepatitis C virus-related hepatocellular carcinoma.J Gastroenterol.2010
Author(s)
Kanmura S, Uto H, Sato Y, Kumagai K, Sasaki F, Moriuchi A, Oketani M, Ido A, Nagata K, Hayashi K, Stuver SO, Tsubouchi H.
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Journal Title
J Gastroenterol. 45
Pages: 459-467
Peer Reviewed
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[Journal Article] Human Neutrophil Peptides 1-3 are useful biomarkers in patients with ulcerative colitis.2009
Author(s)
Kanmura S, Uto H, Numata M, Hashimoto S, Moriuchi A, Fujita H, Oketani M, Ido A, Kodama M, Ohi H, Tsubouchi H.
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Journal Title
Inflamm Bowel Dis. 15
Pages: 909-917
Peer Reviewed
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