Por favor, use este identificador para citar o enlazar este Item:http://hdl.handle.net/20.500.12105/13314
Título
Liposome induction of CD8+ T cell responses depends on CD169+ macrophages and Batf3-dependent dendritic cells and is enhanced by GM3 inclusion.
Autor(es)
Grabowska, J | Affandi, A J | van Dinther, D | Nijen Twilhaar, M K | Olesek, K | Hoogterp, L | Ambrosini, M | Heijnen, D A M | Klaase, L | Hidalgo, Andres CNIC | Asano, K | Crocker, PR | Storm, G | van Kooyk, Y | den Haan, JMM
Fecha de publicación
2021-01
Cita
J Control Release. 2021; 331:309-320
Idioma
Inglés
Tipo de documento
journal article
Resumen
Cancer vaccines aim to efficiently prime cytotoxic CD8+ T cell responses which can be achieved by vaccine targeting to dendritic cells. CD169+ macrophages have been shown to transfer antigen to dendritic cells and could act as an alternative target for cancer vaccines. Here, we evaluated liposomes containing the CD169/Siglec-1 binding ligand, ganglioside GM3, and the non-binding ligand, ganglioside GM1, for their capacity to target antigens to CD169+ macrophages and to induce immune responses. CD169+ macrophages demonstrated specific uptake of GM3 liposomes in vitro and in vivo that was dependent on a functional CD169 receptor. Robust antigen-specific CD8+ and CD4+ T and B cell responses were observed upon intravenous administration of GM3 liposomes containing the model antigen ovalbumin in the presence of adjuvant. Immunization of B16-OVA tumor bearing mice with all liposomes resulted in delayed tumor growth and improved survival. The absence of CD169+ macrophages, functional CD169 molecules, and cross-presenting Batf3-dependent dendritic cells (cDC1s) significantly impaired CD8+ T cell responses, while B cell responses were less affected. In conclusion, we demonstrate that inclusion of GM3 in liposomes enhance immune responses and that splenic CD169+ macrophages and cDC1s are required for induction of CD8+ T cell immunity after liposomal vaccination.
MESH
Liposomes | T-Lymphocytes | Animals | CD8-Positive T-Lymphocytes | Dendritic Cells | Macrophages | Mice | Mice, Inbred C57BL | Ovalbumin
Versión en línea
DOI
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