PMID- 33205040 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240404 IS - 2590-0064 (Electronic) IS - 2590-0064 (Linking) VI - 8 DP - 2020 Sep TI - Developing immune-regulatory materials using immobilized monosaccharides with immune-instructive properties. PG - 100080 LID - 10.1016/j.mtbio.2020.100080 [doi] LID - 100080 AB - New strategies for immune modulation have shown real promise in regenerative medicine as well as the fight against autoimmune diseases, allergies, and cancer. Dendritic cells (DCs) are gatekeepers of the immune system and their ability in shaping the adaptive immune responses makes DCs ideal targets for immune modulation. Carbohydrates are abundant in different biological systems and are known to modulate DC phenotype and function. However, how simple monosaccharides instruct DC function is less well understood. In this study, we used a combinatorial array of immobilized monosaccharides to investigate how they modulate DC phenotype and function and crucially the impact of such changes on downstream adaptive immune responses. Our data show that a selection of monosaccharides significantly suppress lipopolysaccharide-induced DC activation as evidenced by a reduction in CD40 expression, IL-12 production, and indoleamine 2,3-dioxygenase activity, while inducing a significant increase in IL-10 production. These changes are indicative of the induction of an anti-inflammatory or regulatory phenotype in DCs, which was further confirmed in DC-T cell co-cultures where DCs cultured on the 'regulatory' monosaccharide-coated surfaces were shown to induce naive T cell polarization toward regulatory phenotype. Our data also highlighted a selection of monosaccharides that are able to promote mixed Treg and Th17 cell differentiation, a T cell phenotype expected to be highly immune suppressive. These data show the potential immunomodulatory effects of immobilized monosaccharides in priming DCs and skewing T cell differentiation toward an immune-regulatory phenotype. The ability to fine-tune immune responses using these simple carbohydrate combinations (e.g. as coatings for existing materials) can be utilized as novel tools for immune modulation with potential applications in regenerative medicine, implantable medical devices, and wound healing where reduction of inflammatory responses and maintaining immune homeostasis are desirable. CI - (c) 2020 The Authors. FAU - Alobaid, M A AU - Alobaid MA AD - Immunology & Immuno-Bioengineering, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, NG7 2RD, United Kingdom. FAU - Richards, S-J AU - Richards SJ AD - Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom. FAU - Alexander, M R AU - Alexander MR AD - School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom. FAU - Gibson, M I AU - Gibson MI AD - Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom. AD - Warwick Medical School, University of Warwick, Coventry, CV4 7AL, United Kingdom. FAU - Ghaemmaghami, A M AU - Ghaemmaghami AM AD - Immunology & Immuno-Bioengineering, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, NG7 2RD, United Kingdom. AD - Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90024, USA. LA - eng PT - Journal Article DEP - 20200930 PL - England TA - Mater Today Bio JT - Materials today. Bio JID - 101757228 PMC - PMC7649522 OTO - NOTNLM OT - (Gal1), 100% 1-amino-1-deoxy-beta-d-galactose OT - (Gal1-Gal2), 50% 1-amino-1-deoxy-beta-d-galactose + 50% 2-amino-2-deoxy-beta-d-galactose OT - (Gal2), 100% 2-amino-2-deoxy-beta-d-galactose OT - (Gal2-Man1), 90% 2-amino-2-deoxy-beta-d-galactose + 10% 1-amino-1-deoxy-beta-d-mannose OT - (Gal2-Man2), 2-amino-2-deoxy-beta-d-galactose + 10% 2-amino-2-deoxy-beta-d-mannose OT - (Man1-Man2), 40% 1-amino-1-deoxy-beta-d-mannose + 60% 2-amino-2-deoxy-beta-d-mannose OT - CLR, C-type lectin receptor OT - Carbohydrates OT - DC-SIGN, Dendritic cell-specific intercellular adhesion molecule 3-grabbing nonintegrin OT - DCs, Dendritic cells OT - Dendritic cells OT - FBS, Fetal bovine serum OT - Fucose OT - Galactose OT - IDO, Indoleamine 2,3-dioxygenase OT - Immune modulation OT - Immune-instructive materials OT - LPS, Lipopolysaccharide OT - MFI, Median fluorescence intensity OT - MR, Mannose receptor OT - MT, 1-methyl-DL-tryptophan OT - Mannose OT - PRR, Pattern recognition receptor OT - Polymers OT - T cells COIS- The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this article. EDAT- 2020/11/19 06:00 MHDA- 2020/11/19 06:01 PMCR- 2020/09/30 CRDT- 2020/11/18 06:01 PHST- 2020/07/02 00:00 [received] PHST- 2020/09/17 00:00 [revised] PHST- 2020/09/21 00:00 [accepted] PHST- 2020/11/18 06:01 [entrez] PHST- 2020/11/19 06:00 [pubmed] PHST- 2020/11/19 06:01 [medline] PHST- 2020/09/30 00:00 [pmc-release] AID - S2590-0064(20)30040-5 [pii] AID - 100080 [pii] AID - 10.1016/j.mtbio.2020.100080 [doi] PST - epublish SO - Mater Today Bio. 2020 Sep 30;8:100080. doi: 10.1016/j.mtbio.2020.100080. eCollection 2020 Sep.