Cited by 1,234Immunotherapy and Immune ResponsesPhagocytosis and Immune RegulationImmune Response and Inflammation

Immature Dendritic Cells Phagocytose Apoptotic Cells via αvβ5 and CD36, and Cross-present Antigens to Cytotoxic T Lymphocytes

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Albert, Matthew L., Pearce, S.Frieda A., Francisco, Loise M., Sauter, Birthe, Roy, Pampa, Silverstein, Roy L., Bhardwaj, Nina·1998·The Journal of Experimental Medicine

Abstract

Dendritic cells, but not macrophages, efficiently phagocytose apoptotic cells and cross-present viral, tumor, and self-antigens to CD8+ T cells. This in vitro pathway corresponds to the in vivo phenomena of cross-priming and cross-tolerance. Here, we demonstrate that phagocytosis of apoptotic cells is restricted to the immature stage of dendritic cell (DC) development, and that this process is accompanied by the expression of a unique profile of receptors, in particular the αvβ5 integrin and CD36. Upon maturation, these receptors and, in turn, the phagocytic capacity of DCs, are downmodulated. Macrophages engulf apoptotic cells more efficiently than DCs, and although they express many receptors that mediate this uptake, they lack the αvβ5 integrin. Furthermore, in contrast to DCs, macrophages fail to cross-present antigenic material contained within the engulfed apoptotic cells. Thus, DCs use unique pathways for the phagocytosis, processing, and presentation of antigen derived from apoptotic cells on class I major histocompatibility complex. We suggest that the αvβ5 integrin plays a critical role in the trafficking of exogenous antigen by immature DCs in this cross-priming pathway.

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  • The long-term fate of CTLs is determined by additional signals from DCs, which must be licensed by prior CD40-CD40L interaction with activated CD4+ T cells.

    “Following antigen recognition by CD8+ T cells and their development into CTLs, the long-term fate of these cells is determined by additional signals provided by DCs, which must be ‘licensed’ by a prior CD40–CD40L-mediated interaction with activated CD4+ T cells68.”

    From Immunogenic and tolerogenic cell death (2009) · cites this paper as [68]

  • Dendritic cells (DCs), a professional phagocytic cell type, can also identify and eradicate apoptotic cells.

    “Dendritic cells (DCs), a professional phagocytic cell type, can also identify and eradicate apoptotic cells [160].”

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Authors
Albert, M. L., Pearce, S. F. A., Francisco, L. M., Sauter, B., Roy, P., Silverstein, R. L., & Bhardwaj, N.
Affiliations
Cornell University (US)
Corresponding author
Bhardwaj, Nina
Venue
The Journal of Experimental Medicine
Published
1998-10-05
Volume
188
Issue
7
Pages
1359-1368
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2053849689
Cited by
1,234
References
53
Citations by year
2026: 8 · 2025: 5 · 2024: 19 · 2023: 11 · 2022: 12 · 2021: 16 · 2020: 38 · 2019: 13 · 2018: 17 · 2017: 19 · 2016: 24 · 2015: 18 · 2014: 33 · 2013: 27 · 2012: 40
FWCI
29.85
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Experimental Medicine (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • HAL (submittedVersion, cc-by)
Funders
  • National Institutes of Health (5r01ey010967-08, 5r01hl042540-09)
  • National Heart, Lung, and Blood Institute (HL42540)
  • National Eye Institute (EY-10967)
  • National Institute of General Medical Sciences (GM07793)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
dendritic cells, phagocytosis of apoptotic cells, integrin αvβ5, CD36, dendritic cell maturation, cross-presentation, cross-priming, cytotoxic T lymphocytes, macrophages, receptor downmodulation
MeSH terms
CD83 Antigen, Cells, Cultured, Dendritic Cells, Humans, Immunoglobulins, Macrophages, Membrane Glycoproteins, Phagocytosis, T-Lymphocytes, Cytotoxic, Histocompatibility Antigens Class I, Antigens, CD, Integrins, Apoptosis, Antigen Presentation, CD36 Antigens, Receptors, Vitronectin

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