AUTHOR=Saravanan Chinnashanmugam , Gopinath Nandana Karrath , Ganesan Raja , Thirumurugan Durairaj TITLE=Challenges and limitations in using bacterial metabolites as immunomodulators JOURNAL=Frontiers in Cellular and Infection Microbiology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/cellular-and-infection-microbiology/articles/10.3389/fcimb.2025.1535394 DOI=10.3389/fcimb.2025.1535394 ISSN=2235-2988