Unveiling the immunomodulatory effect of the novel probiotic Akkermansia muciniphila and its protective effect in vitro

Akkermansia muciniphila, a bacterium found in the human microbiota, has gained interest due to its potential health benefits. Previous studies have linked its absence to inflammatory disorders, while also suggesting its role in maintaining a healthy gut barrier. However, there is limited information...

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Bibliographic Details
Authors: Calvo-Bacaicoa, A. (Alba)|||/items/8557046e-51a2-45a9-b289-9b6e0b1648d3, Pastor-García, Y. (Yadira)|||/items/90fa794d-fda1-42f6-8afd-da6f79dfdc53, Rosas-Val, P. (Pablo)|||/items/1195ba40-7ae8-46a2-9dda-f60a59c4d00c, Gamazo-de la Rasilla, C.M. (Carlos Manuel)|||/items/d6019c54-7915-4611-94c1-b772366dab1d
Format: article
Publication Date:2024
Country:España
Institution:Universidad de Navarra
Repository:Dadun. Depósito Académico Digital de la Universidad de Navarra
Language:English
OAI Identifier:oai:dadun.unav.edu:10171/116268
Online Access:https://hdl.handle.net/10171/116268
Access Level:Open access
Keyword:Akkermansia muciniphila
Immunomodulation
Macrophage
Probiotics
Protection
Description
Summary:Akkermansia muciniphila, a bacterium found in the human microbiota, has gained interest due to its potential health benefits. Previous studies have linked its absence to inflammatory disorders, while also suggesting its role in maintaining a healthy gut barrier. However, there is limited information on its specific effects on the immune system. Therefore, the aim of this research was to analyze the in vitro response triggered by A. muciniphila employing RAW 264.7 macrophages. The study focused on investigating the production of cytokines and nitric oxide, along with evaluating the expression of inflammatory surface cellular markers. Additionally, we assessed its potential to protect against intestinal infections, using Salmonella enterica serovar Enteritidis as a model. Our findings reveal a modulation effect of A. muciniphila with pro-inflammatory features, including the release of proinflammatory cytokines and upregulation of CD40 and CD80 surface markers, in contrast with previous reported data. Importantly, A. muciniphila could protect against Salmonella infection by promoting macrophage activation, appearing as a promising probiotic candidate for the control of intestinal infections.