Liposomes Loaded with Vitamin D3 Induce Regulatory Circuits in Human Dendritic Cells
Overview
Authors
Affiliations
Introduction: Nanomedicine provides a promising platform for manipulating dendritic cells (DCs) and the ensuing adaptive immune response. For the induction of regulatory responses, DCs can be targeted with nanoparticles incorporating tolerogenic adjuvants and auto-antigens or allergens.
Methods: Here, we investigated the tolerogenic effect of different liposome formulations loaded with vitamin D3 (VD3). We extensively phenotyped monocyte-derived DCs (moDCs) and skin DCs and assessed DC-induced regulatory CD4+ T cells in coculture.
Results: Liposomal VD3 primed-moDCs induced the development of regulatory CD4+ T cells (Tregs) that inhibited bystander memory T cell proliferation. Induced Tregs were of the FoxP3+ CD127low phenotype, also expressing TIGIT. Additionally, liposome-VD3 primed moDCs inhibited the development of T helper 1 (Th1) and T helper 17 (Th17) cells. Skin injection of VD3 liposomes selectively stimulated the migration of CD14+ skin DCs.
Discussion: These results suggest that nanoparticulate VD3 is a tolerogenic tool for DC-mediated induction of regulatory T cell responses.
Harnessing tomato-derived small extracellular vesicles as drug delivery system for cancer therapy.
Sarwareddy K, Singh A, Patnam S, Sesuraj B, Ponamgi S, Thakur B Future Sci OA. 2025; 11(1):2461956.
PMID: 39920889 PMC: 11812386. DOI: 10.1080/20565623.2025.2461956.
Rizzi F, Panniello A, Comparelli R, Arduino I, Fanizza E, Iacobazzi R Molecules. 2024; 29(10).
PMID: 38792228 PMC: 11123821. DOI: 10.3390/molecules29102367.
Mashayekhi K, Khazaie K, Faubion Jr W, Kim G Bioact Mater. 2024; 37:269-298.
PMID: 38694761 PMC: 11061617. DOI: 10.1016/j.bioactmat.2024.03.030.