Publication: Stromal cell networks regulate thymocyte migration and dendritic cell behavior in the thymus.

Publié dans: J Immunol 2011 Mar; 186(5): 2835-41

Auteurs: Sanos SL, Nowak J, Fallet M, Bajenoff M

Résumé

After entry into thymus, T cell progenitors migrate in the cortex and the medulla while completing their education. Recent reports have documented the dynamic and tortuous behavior of thymocytes. However, other than chemokines and/or segregated thymic substrates, the factors contributing to the dynamic patterns of thymocyte movement are poorly characterized. By combining confocal and dynamic two-photon microscopy, we demonstrate that thymocytes continuously migrate on thymic stromal cell networks. In addition to constituting “roads” for thymocytes, we observed that these networks also provide a scaffold on which dendritic cells attach themselves. These results highlight the central role of stromal microanatomy in orchestrating the multiple cellular interactions necessary for T cell migration/development within the thymus.

Lien vers Pubmed [PMID] – 21278345

Lien vers le DOI – 10.4049/jimmunol.1003563