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Your search keyword '"Ambrosini, Martino"' showing total 4 results
Start Over Author "Ambrosini, Martino" Journal proceedings of the national academy of sciences of the united states of america
4 results on '"Ambrosini, Martino"'

1. Selective tumor antigen vaccine delivery to human CD169+ antigen-presenting cells using ganglioside-liposomes

Author

Affandi, Alsya J., Grabowska, Joanna, Olesek, Katarzyna, Venegas, Miguel Lopez, Barbaria, Arnaud, Rodríguez, Ernesto, Mulder, Patrick P. G., Pijffers, Helen J., Ambrosini, Martino, Kalay, Hakan, O’Toole, Tom, Zwart, Eline S., Kazemier, Geert, Nazmi, Kamran, Bikker, Floris J., Stöckl, Johannes, van den Eertwegh, Alfons J. M., de Gruijl, Tanja D., Storm, Gert, van Kooyk, Yvette, and den Haan, Joke M. M.

Published
2020

2. Sialic acid-modified antigens impose tolerance via inhibition of T-cell proliferation and de novo induction of regulatory T cells

Author

Perdicchio, Maurizio, Ilarregui, Juan M., Verstege, Marleen I., Cornelissen, Lenneke A. M., Schetters, Sjoerd T. T., Engels, Steef, Ambrosini, Martino, Kalay, Hakan, Veninga, Henrike, den Haan, Joke M. M., van Berkel, Lisette A., Samsom, Janneke N., Crocker, Paul R., Sparwasser, Tim, Berod, Luciana, Garcia-Vallejo, Juan J., van Kooyk, Yvette, and Unger, Wendy W. J.

Published
2016

3. Selective tumor antigen vaccine delivery to human CD169+ antigen-presenting cells using ganglioside-liposomes.

Author

Affandi, Alsya J., Grabowska, Joanna, Olesek, Katarzyna, Venegas, Miguel Lopez, Barbaria, Arnaud, Ernesto Rodríguez, Mulder, Patrick P. G., Pijffers, Helen J., Ambrosini, Martino, Kalay, Hakan, O'Toole, Tom, Zwart, Eline S., Kazemier, Geert, Nazmi, Kamran, Bikker, Floris J., Stöckl, Johannes, van den Eertwegh, Alfons J. M., de Gruijl, Tanja D., Storm, Gert, and van Kooyk, Yvette

Subjects
TUMOR antigens, CANCER vaccines, ANTIGEN receptors, T cells, DENDRITIC cells
Abstract

Priming of CD8+ T cells by dendritic cells (DCs) is crucial for the generation of effective antitumor immune responses. Here, we describe a liposomal vaccine carrier that delivers tumor antigens to human CD169/Siglec-1+ antigen-presenting cells using gangliosides as targeting ligands. Ganglioside-liposomes specifically bound to CD169 and were internalized by in vitro-generated monocyte-derived DCs (moDCs) and macrophages and by ex vivo-isolated splenic macrophages in a CD169-dependent manner. In blood, high-dimensional reduction analysis revealed that ganglioside-liposomes specifically targeted CD14+ CD169+ monocytes and Axl+ CD169+ DCs. Liposomal codelivery of tumor antigen and Toll-like receptor ligand to CD169+ moDCs and Axl+ CD169+ DCs led to cytokine production and robust cross-presentation and activation of tumor antigen-specific CD8+ T cells. Finally, Axl+ CD169+ DCs were present in cancer patients and efficiently captured ganglioside-liposomes. Our findings demonstrate a nanovaccine platform targeting CD169+ DCs to drive antitumor T cell responses. [ABSTRACT FROM AUTHOR]

Published
2020
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4. Selective tumor antigen vaccine delivery to human CD169 + antigen-presenting cells using ganglioside-liposomes.

Author

Affandi AJ, Grabowska J, Olesek K, Lopez Venegas M, Barbaria A, Rodríguez E, Mulder PPG, Pijffers HJ, Ambrosini M, Kalay H, O'Toole T, Zwart ES, Kazemier G, Nazmi K, Bikker FJ, Stöckl J, van den Eertwegh AJM, de Gruijl TD, Storm G, van Kooyk Y, and den Haan JMM

Subjects
Antigens, Neoplasm administration & dosage, Antigens, Neoplasm immunology, CD8-Positive T-Lymphocytes immunology, Cancer Vaccines immunology, Cross-Priming immunology, Dendritic Cells metabolism, Gangliosides, Humans, Immunogenicity, Vaccine, Leukocytes, Mononuclear, Liposomes, Macrophages metabolism, Neoplasms immunology, Primary Cell Culture, Proto-Oncogene Proteins metabolism, Receptor Protein-Tyrosine Kinases metabolism, Sialic Acid Binding Ig-like Lectin 1 metabolism, THP-1 Cells, Vaccines, Subunit administration & dosage, Vaccines, Subunit immunology, Axl Receptor Tyrosine Kinase, Cancer Vaccines administration & dosage, Dendritic Cells immunology, Macrophages immunology, Neoplasms therapy, Vaccination methods
Abstract

Priming of CD8 + T cells by dendritic cells (DCs) is crucial for the generation of effective antitumor immune responses. Here, we describe a liposomal vaccine carrier that delivers tumor antigens to human CD169/Siglec-1 + antigen-presenting cells using gangliosides as targeting ligands. Ganglioside-liposomes specifically bound to CD169 and were internalized by in vitro-generated monocyte-derived DCs (moDCs) and macrophages and by ex vivo-isolated splenic macrophages in a CD169-dependent manner. In blood, high-dimensional reduction analysis revealed that ganglioside-liposomes specifically targeted CD14 + CD169 + monocytes and Axl + CD169 + DCs. Liposomal codelivery of tumor antigen and Toll-like receptor ligand to CD169 + moDCs and Axl + CD169 + DCs led to cytokine production and robust cross-presentation and activation of tumor antigen-specific CD8 + T cells. Finally, Axl + CD169 + DCs were present in cancer patients and efficiently captured ganglioside-liposomes. Our findings demonstrate a nanovaccine platform targeting CD169 + DCs to drive antitumor T cell responses., Competing Interests: The authors declare no competing interest., (Copyright © 2020 the Author(s). Published by PNAS.)

Published
2020
Full Text
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