Role of CITED2, a novel ulcerative colitis specific gene, to colitis and carcinogenesis.
Project/Area Number |
21590405
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Human pathology
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Research Institution | Kitasato University |
Principal Investigator |
|
Co-Investigator(Renkei-kenkyūsha) |
OKAYASU Isao 北里大学, 医学部, 教授 (20014342)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
Keywords | 潰瘍性大腸炎 / 分子病理 / UC / CITED2 / 炎症 |
Research Abstract |
In ulcerative colitis, Fusobacterium varium is significantly detected in patients' mucosa, and butyric acid, abundantly produced by the bacterium, induces epithelial apoptosis. Here, we identified a gene induced by butyric acid specifically in ulcerative colitis-associated cancer cell lines. cDNA microarray and the validation study revealed CITED2 to be specifically upregulated. CITED2 could be shown to induce p53 acetylation and p53-dependent apoptosis, accompanied by binding of CBP/p300.In inflammatory foci of ulcerative colitis, histologically evident inflammatory activity and CITED2 expression were significantly correlated. On the other hand, we also found olfactomedin 4(OLFM4) induced in the UC-patients' colonic mucosae, and its expression is correlated to the histological activity of UC. In conclusion, CITED2 was identified as ulcerative colitis-associated protein by cDNA microarray based on the Percellome method under UC-mimicking conditions in vitro. CITED2 activation may induce mucosal apoptosis and erosion by activating p53 and thus play a critical role in linking enteric bacteria with mucosal inflammation in ulcerative colitis. Further study of association of CITED2 and OLFM4 is remains to be clarified.
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Report
(4 results)
Research Products
(25 results)
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[Journal Article] High expression of L-type amino-acid transporter 1(LAT1) in gastric carcinomas : comparison with non-cancerous lesions2011
Author(s)
Ichinoe, M., Mikami, T., Yoshida, T., Igawa, I., Tsuruta, T., Nakada, N., Anzai, N., Suzuki, Y., Endou, H., Okayasu, I
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Journal Title
Pathol Int
Volume: 61(5)
Pages: 281-289
NAID
Related Report
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[Journal Article] Invasive behavior of ulcerative colitis-associated carcinoma is related to reduced expression of CD44 extracellular domain : comparison with sporadic colon carcinoma2011
Author(s)
Mikami, T., Yoshida, T., Numata, Y., Kikuchi, M., Araki, K., Nakada, N., Okayasu, I
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Journal Title
Diag Pathol
Volume: 6
Pages: 30-30
Related Report
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[Journal Article] CITED2 is activated in ulcerative colitis and induces p53-dependent apoptosis in response to butyric acid2011
Author(s)
Yoshida, T., Sekine, T., Aisaki, K., Mikami, T., Kanno, J., Okayasu I
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Journal Title
J Gastroenterol
Volume: 46(3)
Pages: 339-349
NAID
Related Report
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[Journal Article] Cytoglobin expression of rectal subepithelial myofibroblasts : Significant alterations of cytoglobin+stromal cells in long-standing ulcerative colitis2011
Author(s)
Okayasu, I., Mikami, T., Yoshida, T., Hana, K., Yokozawa, M., Sada, M., Fujiwara, M., Kawada, N
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Journal Title
Hist Histopathol
Volume: 26
Pages: 679-688
Related Report
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[Journal Article] Appearance of epithelial and stromal genomic instability in background colorectal mucosa of sporadic colorectal cancer patients. relation to age and gender2009
Author(s)
Umeto, H., Yoshida, T., Araki, K., Yagishita, H., Mikami, T., Okayasu, I
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Journal Title
J Gastroenterol
Volume: 44(10)
Pages: 1036-1045
NAID
Related Report
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[Journal Article] Mucosal remodeling in long-standing ulcerative colitis with colorectal neoplasia : Significant alterations of NCAM plus or alpha-SMA plus subepithelial myofibroblasts and interstitial cells2009
Author(s)
Okayasu I, Yoshida, T., Mikami, T., Hana, K., Yokozawa, M., Araki, K., Mitsuhashi, J., Kikuchi, M., Adachi, E., Sada, M
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Journal Title
Pathol Int
Volume: 59(10)
Pages: 701-711
Related Report
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[Journal Article] Commensal bacteria can enter colonic epithelial cells and induce proinflammatory cytokine secretion : a possible pathogenic mechanism of ulcerative colitis2009
Author(s)
Ohkusa, T., Yoshida, T., Sato, N., Watanabe, S., Tajiri, H., Okayasu, I
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Journal Title
J Med Microbiol
Volume: 58(5)
Pages: 535-545
Related Report
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