Novel concepts in plasmacytoid dendritic cell (pDC) development and differentiation

Mol Immunol. 2020 Oct:126:25-30. doi: 10.1016/j.molimm.2020.07.006. Epub 2020 Jul 30.

Abstract

Plasmacytoid dendritic cells (pDCs) are an immune subset specialized in the production of Type I Interferons (IFNs). They are characterized by co-expression of myeloid and lymphoid markers. Their developmental origin has been studied since their discovery and the identification of a myeloid progenitor capable of generating all dendritic cell (DC) subsets, including pDCs, led to their classification within the myeloid compartment. However, recent findings challenge this hypothesis and provide evidence for a lymphoid origin for the majority of pDCs 46-48. In this review we discuss and present the original myeloid and the newer lymphoid developmental trajectories of pDCs.

Keywords: Development; Hematopoiesis; Lymphoid; Myeloid; pDC.

Publication types

  • Research Support, N.I.H., Intramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Cell Differentiation / immunology*
  • Cell Lineage / immunology*
  • Cell Lineage / physiology*
  • Dendritic Cells / physiology*
  • Humans
  • Lymphoid Progenitor Cells / physiology*
  • Myeloid Progenitor Cells