PUBLICATION
Neutrophil-associated responses to Vibrio cholerae infection in a natural host model
- Authors
- Farr, D., Nag, D., Chazin, W.J., Harrison, S., Thummel, R., Luo, X., Raychaudhuri, S., Withey, J.H.
- ID
- ZDB-PUB-220126-39
- Date
- 2022
- Source
- Infection and Immunity 90(3): e0046621 (Journal)
- Registered Authors
- Luo, Xixia, Thummel, Ryan
- Keywords
- none
- MeSH Terms
-
- Animals
- Cholera*/microbiology
- Leukocyte L1 Antigen Complex
- Neutrophils
- Vibrio cholerae*/physiology
- Zebrafish
- PubMed
- 35072520 Full text @ Infect. Immun.
Citation
Farr, D., Nag, D., Chazin, W.J., Harrison, S., Thummel, R., Luo, X., Raychaudhuri, S., Withey, J.H. (2022) Neutrophil-associated responses to Vibrio cholerae infection in a natural host model. Infection and Immunity. 90(3):e0046621.
Abstract
Vibrio cholerae, the cause of human cholera, is an aquatic bacterium found in association with a variety of animals in the environment, including many teleost fish species. V. cholerae infection induces a pro-inflammatory response followed by a non-inflammatory convalescent phase. Neutrophils are integral to this early immune response. However, the relationship between the neutrophil-associated protein calprotectin and V. cholerae has not been investigated, nor have the effects of limiting transition metals on V. cholerae growth. Zebrafish are useful as a natural V. cholerae model as the entire infectious cycle can be recapitulated in the presence of an intact intestinal microbiome and mature immune responses. Here, we demonstrate that zebrafish produce a significant neutrophil, IL-8, and calprotectin response following V. cholerae infection. Bacterial growth was completely inhibited by purified calprotectin protein or the chemical chelator TPEN, but growth was recovered by addition of transition metals zinc and manganese. Expression of downstream calprotectin targets also significantly increased in the zebrafish. These findings illuminate the role of host calprotectin in combating V. cholerae infection. Inhibition of V. cholerae growth through metal limitation may provide new approaches in the development of anti-V. cholerae therapeutics. This study also establishes a major role for calprotectin in combating infectious diseases in zebrafish.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping