High intestinal isoleucine is a potential risk factor for food allergy by regulating the mTOR/AKT pathway in dendritic cells.
Clin Immunol
; 257: 109818, 2023 12.
Article
em En
| MEDLINE
| ID: mdl-37918466
ABSTRACT
Food allergy is a global food safety problem with a growing prevalence. People in industrial regions are more susceptible to allergy, but the mechanisms behind this are not fully understood. In this study, the probiotic Lactobacillus casei Zhang (LcZ) was administered to allergic individuals and the impact on allergy-related factors were determined. LcZ alleviated allergenic responses, and there was a significant correlation between the intestinal isoleucine content and IgE concentration. Metagenomics results suggest that the metabolism of the gut microbiota is a source of isoleucine. In a mouse model of food allergy, a high isoleucine diet exacerbated allergic responses and increased the activity of allergenic dendritic cell. In a dendritic cell model, a protein array revealed that the mTOR/AKT pathway mediated the function of isoleucine, and molecular docking suggested that Sestrin2 could be the potential receptor. Overall, this study revealed the role of isoleucine in promoting food allergy, elucidated the underlying mechanisms, and suggested that a high intake of isoleucine could be a potential risk factor for food allergy.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Hipersensibilidade Alimentar
/
Intestinos
/
Isoleucina
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Clin Immunol
Assunto da revista:
ALERGIA E IMUNOLOGIA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
China