Immunological pathogenesis of Bovine E. coli infection in a model of C. elegans
© 2022. The Author(s)..
BACKGROUND: Cattle industry is critical for China's livestock industry, whereas E. coli infection and relevant diseases could lead huge economic loss. Traditional mammalian models would be costly, time consuming and complicated to study pathological changes of bovine E. coli. There is an urgent need for a simple but efficient animal model to quantitatively evaluate the pathological changes of bovine-derived E. coli in vivo. Caenorhabditis elegans (C. elegans) has a broad host range of diverse E. coli strains with advantages, including a short life cycle, a simple structure, a transparent body which is easily visualized, a well-studied genetic map, an intrinsic immune system which is conservable with more complicated mammalians.
RESULTS: Here, we considered that O126 was the dominant serotype, and a total of 19 virulence factors were identified from 41 common E. coli virulence factors. Different E. coli strains with diverse pathogenicity strengths were tested in C. elegans in E. coli with higher pathogenicity (EC3/10), Nsy-1, Sek-1 and Pmk-1 of the p38 MAPK signaling pathway cascade and the expression of the antimicrobial peptides Abf-3 and Clec-60 were significantly up-regulated comparing with other groups. E. coli with lower pathogenicity (EC5/13) only activated the expression of Nsy-1 and Sek-1 genes in the p38 MAPK signaling pathway, Additionally, both groups of E. coli strains caused significant upregulation of the antimicrobial peptide Spp-1.
CONCLUSION: Thirteen E. coli strains showed diverse pathogenicity in nematodes and the detection rate of virulence factors did not corresponding to the virulence in nematodes, indicating complex pathogenicity mechanisms. We approved that C. elegans is a fast and convenient detection model for pathogenic bacteria virulence examinations.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:22 |
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| Enthalten in: |
BMC microbiology - 22(2022), 1 vom: 20. Dez., Seite 311 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Peng, Hao [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 22.12.2022 Date Revised 23.12.2022 published: Electronic Citation Status MEDLINE |
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| doi: |
10.1186/s12866-022-02733-5 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM350513546 |
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| 245 | 1 | 0 | |a Immunological pathogenesis of Bovine E. coli infection in a model of C. elegans |
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| 500 | |a Date Revised 23.12.2022 | ||
| 500 | |a published: Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2022. The Author(s). | ||
| 520 | |a BACKGROUND: Cattle industry is critical for China's livestock industry, whereas E. coli infection and relevant diseases could lead huge economic loss. Traditional mammalian models would be costly, time consuming and complicated to study pathological changes of bovine E. coli. There is an urgent need for a simple but efficient animal model to quantitatively evaluate the pathological changes of bovine-derived E. coli in vivo. Caenorhabditis elegans (C. elegans) has a broad host range of diverse E. coli strains with advantages, including a short life cycle, a simple structure, a transparent body which is easily visualized, a well-studied genetic map, an intrinsic immune system which is conservable with more complicated mammalians | ||
| 520 | |a RESULTS: Here, we considered that O126 was the dominant serotype, and a total of 19 virulence factors were identified from 41 common E. coli virulence factors. Different E. coli strains with diverse pathogenicity strengths were tested in C. elegans in E. coli with higher pathogenicity (EC3/10), Nsy-1, Sek-1 and Pmk-1 of the p38 MAPK signaling pathway cascade and the expression of the antimicrobial peptides Abf-3 and Clec-60 were significantly up-regulated comparing with other groups. E. coli with lower pathogenicity (EC5/13) only activated the expression of Nsy-1 and Sek-1 genes in the p38 MAPK signaling pathway, Additionally, both groups of E. coli strains caused significant upregulation of the antimicrobial peptide Spp-1 | ||
| 520 | |a CONCLUSION: Thirteen E. coli strains showed diverse pathogenicity in nematodes and the detection rate of virulence factors did not corresponding to the virulence in nematodes, indicating complex pathogenicity mechanisms. We approved that C. elegans is a fast and convenient detection model for pathogenic bacteria virulence examinations | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Bovine | |
| 650 | 4 | |a Caenorhabditis elegans (C. elegans) | |
| 650 | 4 | |a Escherichia coli (E. coli) | |
| 650 | 4 | |a Innate immunity | |
| 650 | 4 | |a Pathogenicity | |
| 650 | 7 | |a Caenorhabditis elegans Proteins |2 NLM | |
| 650 | 7 | |a Virulence Factors |2 NLM | |
| 650 | 7 | |a p38 Mitogen-Activated Protein Kinases |2 NLM | |
| 650 | 7 | |a EC 2.7.11.24 |2 NLM | |
| 700 | 1 | |a Bai, Huili |e verfasserin |4 aut | |
| 700 | 1 | |a Pan, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jun |e verfasserin |4 aut | |
| 700 | 1 | |a Pei, Zhe |e verfasserin |4 aut | |
| 700 | 1 | |a Liao, Yuying |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Cuilan |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Changting |e verfasserin |4 aut | |
| 700 | 1 | |a Tao, Li |e verfasserin |4 aut | |
| 700 | 1 | |a Zhong, Shuhong |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Chunxia |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Zhongwei |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xiaoning |e verfasserin |4 aut | |
| 700 | 1 | |a Gong, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Leping |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Fengsheng |e verfasserin |4 aut | |
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