Antigen crosspresentation by human plasmacytoid dendritic cells

Details

Serval ID
serval:BIB_33096200041F
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Antigen crosspresentation by human plasmacytoid dendritic cells
Journal
Immunity
Author(s)
Hoeffel G., Ripoche A. C., Matheoud D., Nascimbeni M., Escriou N., Lebon P., Heshmati F., Guillet J. G., Gannage M., Caillat-Zucman S., Casartelli N., Schwartz O., De la Salle H., Hanau D., Hosmalin A., Maranon C.
ISSN
1074-7613 (Print)
ISSN-L
1074-7613
Publication state
Published
Issued date
09/2007
Volume
27
Number
3
Pages
481-92
Language
english
Notes
Hoeffel, Guillaume
Ripoche, Anne-Claire
Matheoud, Diana
Nascimbeni, Michelina
Escriou, Nicolas
Lebon, Pierre
Heshmati, Farhad
Guillet, Jean-Gerard
Gannage, Monique
Caillat-Zucman, Sophie
Casartelli, Nicoletta
Schwartz, Olivier
De la Salle, Henri
Hanau, Daniel
Hosmalin, Anne
Maranon, Concepcion
eng
Research Support, Non-U.S. Gov't
Immunity. 2007 Sep;27(3):481-92. doi: 10.1016/j.immuni.2007.07.021.
Abstract
Crosspresentation is a specialized function of myeloid dendritic cells (mDCs), allowing them to induce CD8+ T cell responses against exogenous antigens that are not directly produced in their cytotosol. Human plasmacytoid DCs (pDCs) are not considered so far as able to perform crosspresentation. We showed here that purified human pDCs crosspresented vaccinal lipopeptides and HIV-1 antigens from apoptotic cells to specific CD8+ T lymphocytes. Apoptotic debris were internalized by phagocytosis and the lipopeptide LPPol reached nonacidic endosomes. This crosspresentation was amplified upon influenza virus infection. Importantly, the efficiency of crosspresentation by pDCs was comparable to that of mDCs. This property of human pDCs needs to be taken into account to understand the pathogenesis of infectious, allergic, or autimmune diseases and to help achieve desired responses during vaccination by targeting specifically either type of DCs.
Keywords
AIDS Vaccines/*immunology, Antigen Presentation/*immunology, Apoptosis/*immunology, CD8-Positive T-Lymphocytes/immunology, Cells, Cultured, Dendritic Cells/*immunology/virology, HIV/immunology, HIV Antigens/*immunology, Humans, Leukocytes/immunology/virology, Lipoproteins/immunology, Lymphocyte Activation/*immunology, Microscopy, Confocal, Transfection
Pubmed
Create date
10/03/2022 10:43
Last modification date
11/03/2022 6:33
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