학술논문
Increased phagocytosis of macrophages infected with a ΔrelAΔspoT mutant of enteropathogenic Escherichia coli E2348/69
이용수 2
- 영문명
- Increased phagocytosis of macrophages infected with a ΔrelAΔspoT mutant of enteropathogenic Escherichia coli E2348/69
- 발행기관
- 한국예방수의학회
- 저자명
- Jun Bong Lee Jang Won Yoon
- 간행물 정보
- 『Journal of Preventive Veterinary Medicine』Vol.47, No.3, 110~114쪽, 전체 5쪽
- 주제분류
- 의약학 > 기타의약학
- 파일형태
- 발행일자
- 2023.09.30
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국문 초록
영문 초록
Enteropathogenic Escherichia coli (EPEC) have developed survival strategies to evade host defense systems. The intracellular level of guanosine tetraphosphate (ppGpp) controlled by RelA and SpoT can mediate immune evasion of EPEC. However, the impact of ppGpp-defective EPEC infection on phagocytes remains unknown. In this study, we report that disrupting relA and spoT of EPEC E2348/69 strain promotes its phagocytosis in porcine macrophages. Our experimental analysis showed that both uptake and killing of an E2348/69 ΔrelAΔspoT mutant by macrophages were increased compared to those of wildtype strain. These results suggest that ppGpp plays an essential role in evading phagocytosis during EPEC pathogenesis.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
ACKNOWLEDGEMENTS
REFERENCES
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