| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Campylobacter jejuni is a major cause of bacterial hood borne illness worldwide. C. jejuni virulence is closely associated with entering into host epithelial cells.
Against to invasive bacteria, autophagy is activated for bacterial clearance. But it is not clear how autophagy effect on the bacteria survive in invading C. jejuni. Here we investigated the role of autophagy in C. jejuni-infection.
C. jejuni infection induced autophagy in host epithelial cells, but autophagy-associated proteins did not co-localized with C. jejuni. Additionally, inhibition of autophagy decreased bacterial survival and amino acid content in infected cells. The survival rate of intracellular bacteria were up-regulated by amino acid supplementation. Those data indicate that induction of autophagy could contribute to survive of C. jejuni in epithelial cells efficiently. Our data suggest that autophagy must be target of nutritional treatment in infection disease.
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