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European Journal of Immunology
Article . 2015 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
HAL-ENS-LYON
Article . 2016
Data sources: HAL-ENS-LYON
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Plasmacytoid dendritic cells are dispensable for noninfectious intestinal IgA responses in vivo

Authors: Moro-Sibilot, Ludovic; This, Sébastien; Blanc, Pascal; Sanlaville, Amelien; Sisirak, Vanja; Bardel, Emilie; Boschetti, Gilles; +4 Authors

Plasmacytoid dendritic cells are dispensable for noninfectious intestinal IgA responses in vivo

Abstract

Intestinal DCs orchestrate gut immune homeostasis by dampening proinflammatory T‐cell responses and inducing anti‐inflammatory IgA responses. Although no specific DC subset has been strictly assigned so far to govern IgA response, some candidate subsets emerge. In particular, plasmacytoid DCs (pDCs), which notoriously promote anti‐viral immunity and T‐cell tolerance to innocuous antigens (Ags), contribute to IgA induction in response to intestinal viral infection and promote T‐cell‐independent IgA responses in vitro. Here, using two transgenic mouse models, we show that neither short‐term nor long‐term pDC depletion alters IgA class switch recombination in Peyer's patches and frequency of IgA plasma cells in intestinal mucosa at steady state, even in the absence of T‐cell help. In addition, pDCs are dispensable for induction of intestinal IgA plasma cells in response to oral immunization with T‐cell‐dependent or T‐cell‐independent Ags, and are not required for proliferation and IgA switch of Ag‐specific B cells in GALT. These results show that pDCs are dispensable for noninfectious IgA responses, and suggest that various DC subsets may play redundant roles in the control of intestinal IgA responses.

Keywords

Cells, T-Lymphocytes, Plasma Cells, 610, [SDV.CAN]Life Sciences [q-bio]/Cancer, Mice, Transgenic, Mice, Transcription Factor 4, [SDV.CAN] Life Sciences [q-bio]/Cancer, 616, Immune Tolerance, Animals, Homeostasis, Humans, Antigens, Intestinal Mucosa, Mice, Knockout, B-Lymphocytes, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors, Dendritic Cells, Immunoglobulin Class Switching, Immunoglobulin A, Mice, Inbred C57BL, Medicine, pathology, Immunization, France, Infection

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    9
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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Powered by OpenAIRE graph
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
9
Average
Average
Average