Plasmacytoid dendritic cells induce plasma cell differentiation through type I interferon and interleukin 6
Open accessAbstract
Dendritic cells (DCs) initiate and control immune responses. Plasmacytoid DCs (pDCs) represent a unique DC subset able to promptly release large amounts of type I interferon (IFN-alphabeta) upon viral encounter. Here we report that depletion of pDCs from human blood mononuclear cells abrogates the secretion of specific and polyclonal IgGs in response to influenza virus. Furthermore, purified pDCs triggered with virus induce CD40-activated B cells to differentiate into plasma cells. Two pDC cytokines act sequentially, with IFN-alphabeta generating non-Ig-secreting plasma blasts and IL-6 inducing their differentiation into Ig-secreting plasma cells. These plasma cells display the high levels of CD38 found on tissue plasma cells. Thus, pDCs are critical for the generation of plasma cells and antibody responses.
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IL-6 promotes antibody production by directly acting on plasma cells and by indirectly promoting Bcl6-dependent follicular CD4+ T (Tfh) cell differentiation together with IL-21.
“Indeed, IL-6 promotes antibody production by directly acting on plasma cells and by indirectly promoting Bcl6-dependent follicular CD4(+) T (Tfh) cell differentiation together with IL-21 (Fig. 2) (143–146).”
From IL-6 in inflammation, autoimmunity and cancer (2021) · cites this paper as [144]
The Results (Figure 5) show that IL-6 helps activated B cells become Ig-secreting plasma cells and that blocking IL-6 reduces IgG secretion; in these experiments, IL-6 acts with type I interferon. The paper does not support the attributed mechanism involving Bcl6-dependent Tfh-cell differentiation or IL-21. Page numbers are not available in our copy. (LLM, conf=0.90)
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Cites
Janeway, C. A., & Medzhitov, R. (2002) · Annual Review of Immunology · doi:10.1146/annurev.immunol.20.083001.084359 · Cited by 8,394 · see citing works
Interleukin-10 and the Interleukin-10 Receptor
Moore, K. W., de Waal Malefyt, R., Coffman, R. L., & O'Garra, A. (2001) · Annual Review of Immunology · doi:10.1146/annurev.immunol.19.1.683 · Cited by 6,737 · see citing works
Viruses and interferon: a fight for supremacy
Katze, M. G., He, Y., & Gale, M. (2002) · Nature Reviews Immunology · doi:10.1038/nri888 · Cited by 1,419 · see citing works
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“TRAF3 inhibits the IL-6–mediated differentiation of PCs IL-6 plays an important role in the development of PCs under normal conditions and in multiple myeloma (17, 19, 23, 29).”
Background
- Authors
- Jego, G., Palucka, A. K., Blanck, J.-P., Chalouni, C., Pascual, V., & Banchereau, J.
- Corresponding author
- Banchereau, Jacques
- Venue
- Immunity
- Publisher
- Elsevier BV
- Published
- 2003-08
- Volume
- 19
- Issue
- 2
- Pages
- 225-234
- ISSN
- 1074-7613 (ISSN-L)
- OpenAlex
- W2106566281
- Cited by
- 1,067
- References
- 3
- Citations by year
- 2026: 17 · 2025: 31 · 2024: 29 · 2023: 46 · 2022: 42 · 2021: 49 · 2020: 34 · 2019: 41 · 2018: 42 · 2017: 32 · 2016: 41 · 2015: 48 · 2014: 47 · 2013: 61 · 2012: 62
- FWCI
- 15.62
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Immunity (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Cancer Institute (R01 CA78846, R01CA078846)
- National Institute of Arthritis and Musculoskeletal and Skin Diseases (R01AR046589, R0-1-AR46589)
- Topics
- Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
- Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
- Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
- Keywords
- plasmacytoid dendritic cells, plasma cell differentiation, type I interferon, interleukin-6, influenza virus, antibody response, IgG secretion, plasmablasts, CD38, B cell differentiation
- MeSH terms
- Adult, B-Lymphocytes, Cell Communication, Cell Differentiation, Dendritic Cells, Humans, Immunoglobulins, Interferon Type I, Lymphocyte Activation, Plasma Cells, Interleukin-6, CD40 Antigens, In Vitro Techniques
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