ß(2â6)-Type fructans attenuate proinflammatory responses in a structure dependent fashion via Toll-like receptors.
Carbohydr Polym
; 277: 118893, 2022 Feb 01.
Article
en En
| MEDLINE
| ID: mdl-34893295
Graminan-type fructans (GTFs) have demonstrated immune benefits. However, mechanisms underlying these benefits are unknown. We studied GTFs interaction with Toll-like receptors (TLRs), performed molecular docking and determined their impact on dendritic cells (DCs). Effects of GTFs were compared with those of inulin-type fructans (ITFs). Whereas ITFs only contained ß(2â1)-linked fructans, GTFs showed higher complexity as it contains additional ß(2â6)-linkages. GTFs activated NF-κB/AP-1 through MyD88 and TRIF pathways. GTFs stimulated TLR3, 7 and 9 while ITFs activated TLR2 and TLR4. GTFs strongly inhibited TLR2 and TLR4, while ITFs did not inhibit any TLR. Molecular docking demonstrated interactions of fructans with TLR2, 3, and 4 in a structure dependent fashion. Moreover, ITFs and GTFs attenuated pro-inflammatory cytokine production of stimulated DCs. These findings demonstrate immunomodulatory effects of GTFs via TLRs and attenuation of cytokine production in dendritic cells by GTFs and long-chain ITF.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Receptores Toll-Like
/
Fructanos
/
Inflamación
Límite:
Humans
Idioma:
En
Revista:
Carbohydr Polym
Año:
2022
Tipo del documento:
Article
Pais de publicación:
Reino Unido