Dendritic cell subsets in lymph nodes are characterized by the specific draining area and influence the phenotype and fate of primed T cells

Ulrike Bode*, Marc Lörchner, Manuela Ahrendt, Maike Blessenohl, Kathrin Kalies, Anja Claus, Silke Overbeck, Lothar Rink, Reinhard Pabst

*Corresponding author for this work
12 Citations (Scopus)

Abstract

Dendritic cells (DC) are important in differential T-cell priming. Little is known about the local priming by DC in the microenvironment of different lymph nodes and about the fate of the imprinted T cells. Therefore, freshly isolated rat DC from mesenteric lymph nodes (mLN) and axillary lymph nodes (axLN) were phenotyped and cultured with blood T cells in the presence of the superantigen Mycoplasma arthritidis mitogen (MAM). The phenotype, proliferation and apoptosis of the primed T cells were analysed. Our data show that a common DC population exists in both mLN and axLN. In addition, region-specific DC with an organotypical marker expression imprinted by the drained area were found. Coculture of T cells with DC from mLN or axLN resulted in a distinct shift in the CD4 and CD8 expression of T cells and their phenotype. Furthermore, when these differentially primed mLN and axLN T cells were injected into recipients, mLN-primed T cells survived longer in other lymphoid organs. The results show that the region-specific DC have a unique phenotype and an impact on the ratio of CD4:CD8 T cells during an immune response in vivo.

Original languageEnglish
JournalImmunology
Volume123
Issue number4
Pages (from-to)480-490
Number of pages11
ISSN0019-2805
DOIs
Publication statusPublished - 04.2008

Research Areas and Centers

  • Academic Focus: Center for Infection and Inflammation Research (ZIEL)

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