Lymphatic endothelial cells of the lymph node

Nat Rev Immunol. 2020 Sep;20(9):566-578. doi: 10.1038/s41577-020-0281-x. Epub 2020 Feb 24.


The influx and efflux of cells and antigens to and from the draining lymph nodes largely take place through the subcapsular, cortical and medullary sinus systems. Recent analyses in mice and humans have revealed unexpected diversity in the lymphatic endothelial cells, which form the distinct regions of the sinuses. As a semipermeable barrier, the lymphatic endothelial cells regulate the sorting of lymph-borne antigens to the lymph node parenchyma and can themselves serve as antigen-presenting cells. The leukocytes entering the lymph node via the sinus system and the lymphocytes egressing from the parenchyma migrate through the lymphatic endothelial cell layer. The sinus lymphatic endothelial cells also orchestrate the organogenesis of lymph nodes, and they undergo bidirectional signalling with other sinus-resident cells, such as subcapsular sinus macrophages, to generate a unique lymphatic niche. In this Review, we consider the structural and functional basis of how the lymph node sinus system coordinates immune responses under physiological conditions, and in inflammation and cancer.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Endothelial Cells / immunology*
  • Endothelium, Lymphatic / cytology*
  • Endothelium, Lymphatic / immunology
  • Humans
  • Immunity, Cellular
  • Inflammation / immunology
  • Lymph Nodes / cytology*
  • Lymph Nodes / immunology
  • Neoplasms / immunology