Faculty of 1000 evaluation for CXCR3 chemokine receptor-ligand interactions in the lymph node optimize CD4(+) T helper 1 cell differentiation [dataset]

Sanjiv Luther
2012 F1000 - Post-publication peer review of the biomedical literature   unpublished
Differentiation of naïve CD4 + T cells into T helper (T h ) cells is a defining event in adaptive immunity. The cytokines and transcription factors that control Th cell differentiation are understood, however it is not known how this process is orchestrated within lymph nodes (LNs). Here we have shown that the CXCR3 chemokine receptor was required for optimal generation of interferon (IFN)-γ secreting Th1 cells in vivo. Using a CXCR3 ligand reporter mouse, we found that stromal cells
more » ... ly expressed the chemokine ligand CXCL9 while hematopoietic cells expressed CXCL10 in LNs. Dendritic cell (DC)-derived CXCL10 facilitated T cell-DC interactions in LNs during T cell priming while both chemokines guided intranodal positioning of CD4 + T cells to interfollicular and medullary zones. Thus, different chemokines acting on the same receptor can function locally to facilitate DC-T cell interactions and globally to influence intranodal positioning, and that both functions contribute to Th1 cell differentiation.
doi:10.3410/f.717963933.793465692 fatcat:tstjgquahzfnbcnjzokrqrmspm