PUBLICATION
Lactobacillus rhamnosus GG triggers intestinal epithelium injury in zebrafish revealing host dependent beneficial effects
- Authors
- Zhang, Z., Zhang, H.L., Yang, D.H., Hao, Q., Yang, H.W., Meng, D.L., Meindert de Vos, W., Guan, L.L., Liu, S.B., Teame, T., Gao, C.C., Ran, C., Yang, Y.L., Yao, Y.Y., Ding, Q.W., Zhou, Z.G.
- ID
- ZDB-PUB-240617-10
- Date
- 2024
- Source
- iMeta 3: e181e181 (Journal)
- Registered Authors
- Ran, Chao, Zhou, Zhigang
- Keywords
- Lactobacillus rhamnosus GG, SpaC, intestinal mucosal damage, probiotic safety, zebrafish
- MeSH Terms
- none
- PubMed
- 38882496 Full text @ Imeta
Citation
Zhang, Z., Zhang, H.L., Yang, D.H., Hao, Q., Yang, H.W., Meng, D.L., Meindert de Vos, W., Guan, L.L., Liu, S.B., Teame, T., Gao, C.C., Ran, C., Yang, Y.L., Yao, Y.Y., Ding, Q.W., Zhou, Z.G. (2024) Lactobacillus rhamnosus GG triggers intestinal epithelium injury in zebrafish revealing host dependent beneficial effects. iMeta. 3:e181e181.
Abstract
Lactobacillus rhamnosus GG (LGG), the well-characterized human-derived probiotic strain, possesses excellent properties in the maintenance of intestinal homeostasis, immunoregulation and defense against gastrointestinal pathogens in mammals. Here, we demonstrate that the SpaC pilin of LGG causes intestinal epithelium injury by inducing cell pyroptosis and gut microbial dysbiosis in zebrafish. Dietary SpaC activates Caspase-3-GSDMEa pathways in the intestinal epithelium, promotes intestinal pyroptosis and increases lipopolysaccharide (LPS)-producing gut microbes in zebrafish. The increased LPS subsequently activates Gaspy2-GSDMEb pyroptosis pathway. Further analysis reveals the Caspase-3-GSDMEa pyroptosis is initiated by the species-specific recognition of SpaC by TLR4ba, which accounts for the species-specificity of the SpaC-inducing intestinal pyroptosis in zebrafish. The observed pyroptosis-driven gut injury and microbial dysbiosis by LGG in zebrafish suggest that host-specific beneficial/harmful mechanisms are critical safety issues when applying probiotics derived from other host species and need more attention.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping