Human Milk Oligosaccharide 3'-GL Improves Influenza-Specific Vaccination Responsiveness and Immunity after Deoxynivalenol Exposure in Preclinical Models

Autor: Toutounchi, Negisa Seyed, Braber, Saskia, Hogenkamp, Astrid, Varasteh, Soheil, Cai, Yang, Wehkamp, Tjalling, Tims, Sebastian, Leusink-Muis, Thea, van Ark, Ingrid, Wiertsema, Selma, Stahl, Bernd, Kraneveld, Aletta D., Garssen, Johan, Folkerts, Gert, Van’T Land, Belinda, Afd Pharmacology, Afd Chemical Biology and Drug Discovery, Pharmacology, Chemical Biology and Drug Discovery
Přispěvatelé: Afd Pharmacology, Afd Chemical Biology and Drug Discovery, Pharmacology, Chemical Biology and Drug Discovery
Rok vydání: 2021
Předmět:
Zdroj: Nutrients
Nutrients, 13(9). MDPI AG
Nutrients, Vol 13, Iss 3190, p 3190 (2021)
Volume 13
Issue 9
ISSN: 2072-6643
Popis: Deoxynivalenol (DON), a highly prevalent mycotoxin food contaminant, is known to have immunotoxic effects. In the current study, the potential of dietary interventions with specific mixtures of trans-galactosyl-oligosaccharides (TOS) to alleviate these effects were assessed in a murine influenza vaccination model. Vaccine-specific immune responses were measured in C57Bl/6JOlaHsd mice fed diets containing DON, TOS or a combination, starting 2 weeks before the first vaccination. The direct effects of TOS and its main oligosaccharide, 3′-galactosyl-lactose (3′-GL), on DON-induced damage were studied in Caco-2 cells, as an in vitro model of the intestinal epithelial barrier. Exposure to DON significantly reduced vaccine-specific immune responses and the percentages of Tbet+ Th1 cells and B cells in the spleen. DON significantly altered epithelial structure and integrity in the ileum and reduced the SCFA levels in the cecum. Adding TOS into DON-containing diets significantly improved vaccine-specific immune responses, restored the immune cell balance in the spleen and increased SCFA concentrations in the cecum. Incubating Caco-2 cells with TOS and 3′-GL in vitro further confirmed their protective effects against DON-induced barrier disruption, supporting immune modulation. Overall, dietary intervention with TOS can attenuate the adverse effects of DON on Th1-mediated immune responses and gut homeostasis. These beneficial properties might be linked to the high levels of 3′-GL in TOS.
Databáze: OpenAIRE