| Project/Area Number |
25462871
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Morphological basic dentistry
|
|---|
| Research Institution | Iwate Medical University |
|---|
Principal Investigator |
Sasaki Minoru 岩手医科大学, 歯学部, 准教授 (40187133)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
KIMURA SHIGENOBU 岩手医科大学, 歯学部, 教授 (10177917)
SIMOYAMA YU 岩手医科大学, 歯学部, 助教 (90453331)
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
|
|---|
| Keywords | 口腔レンサ球菌 / AID / oral cancer / p53 / S. anginosus / 口腔癌 / 感染発癌 / 感染 / 細菌 |
|---|
| Outline of Final Research Achievements |
Streptococcus anginosus, one of the oral streptococci could be closely related with oral squamous cell carcinoma (SCC). Recent studies have revealed that the relationship between bacterial carcinogenesis and aberrant AID expression. In this study, the involvement of S. anginosus infection and the AID expression in oral SCC was demonstrated. S. anginosus genome DNA was frequently observed in the oral SCC, and the relatively higher AID expressions were detected in the cancerous region. The stimulation with S. anginosus antigen SAA could induce the AID expression through NF-kB activation in cultured epithelial cells. Further, S. anginosus SAA induced the generation of nucleotide alterations in TP53. Taken together, S. anginosus infection could be closely related with the oral SCC.
|
