| Project/Area Number |
20510069
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Risk sciences of radiation/Chemicals
|
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| Research Institution | Chubu University |
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Principal Investigator |
MIWA Johji Chubu University, 応用生物学部, 教授 (80321686)
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| Project Period (FY) |
2008 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | トキシコロジー / 生体異物代謝 / Caenorhabditis elegans / 薬毒物代謝 / GST / WDリピートタンパク質 / xrep遺伝子 / ストレス / ホルミシス / ホルメティック回路 / 異物代謝 / 遺伝学 / 経路 / アクリルアミド |
|---|
| Research Abstract |
We are constantly exposed to harmful substances from foods and environments. Besides, our body also produces such metabolites quite unkind to our own tissues, cells, and genetic materials as reactive oxygen species. We do have innate defense systems, however, against these assaults. One of them involves a detoxifying (detox) enzyme system, where harmful substances are first recognized, captured, transformed, and finally expelled outside the body. We explored this system using the model animal C. elegans and have found that an XREP-1/XREP-3 pair plays a vital role in the detox system. XREP-1 functions as a sensor to recognize harmful substances and XREP-3 as a processor to initiate the production of detox enzymes. This pair resembles the mammalian Keap1/Nfr2 pair, indicating that a similar system is working in the human body.
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