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Cutaneous dendritic cells

Jenny Valladeau1, Sem Saeland

  • 1Université Claude Bernard Lyon I, Dermatologie-Pavillon R, EA 3732, Hopital Ed Herriot, Pav R, 69437 Lyon cedex, France. valladeau@lyon.inserm.fr

Seminars in Immunology
|June 15, 2005
PubMed

Insights

Cutaneous dendritic cells (DC) are key immune cells in the skin, including Langerhans cells (LC) and dermal dendritic cells (DDC). These cells migrate to lymph nodes, playing a crucial role in immune responses.

Area of Science:

  • Immunology
  • Dermatology
  • Cell Biology

Background:

  • Cutaneous dendritic cells (DC) are essential immune cells residing in the skin.
  • These cells encompass epidermal Langerhans cells (LC), interstitial/dermal dendritic cells (DDC), and plasmacytoid DC (pDC) observed in pathological states.
  • Their functions extend beyond the skin, influencing systemic immunity.

Purpose of the Study:

  • To review the characteristics of human and mouse cutaneous dendritic cells.
  • To emphasize the life-cycle stages of these cells within the skin.
  • To highlight their migratory properties and interactions in lymph nodes.

Main Methods:

  • Literature review of studies on cutaneous dendritic cells in humans and mice.
  • Analysis of cell morphology, function, and migratory behavior.
  • Emphasis on in-situ characteristics and life-cycle stages within the skin.

Main Results:

  • Cutaneous DCs possess the ability to internalize particulate agents and macromolecules.
  • These cells exhibit migratory capabilities, traveling from the skin to draining lymph nodes.
  • In lymph nodes, they interact with antigen-specific T lymphocytes, initiating adaptive immune responses.

Conclusions:

  • Cutaneous dendritic cells are critical sentinels of the skin immune system.
  • Their unique migratory capacity facilitates the initiation of adaptive immunity.
  • Understanding their life cycle and functions is vital for comprehending skin immunity and related pathologies.

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