Plasmacytoid dendritic cells are dispensable for noninfectious intestinal IgA responses in vivo
pmid: 26518732
Plasmacytoid dendritic cells are dispensable for noninfectious intestinal IgA responses in vivo
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.
- New York University United States
- French Institute of Health and Medical Research France
- Inserm France
- École Normale Supérieure de Lyon France
- Jean Monnet University France
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
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
41 Research products, page 1 of 5
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
chevron_left - 1
- 2
- 3
- 4
- 5
chevron_right
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).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.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
