Chemokine Requirements for B Cell Entry to Lymph Nodes and Peyer's Patches

نویسندگان

  • Takaharu Okada
  • Vu N. Ngo
  • Eric H. Ekland
  • Reinhold Förster
  • Martin Lipp
  • Dan R. Littman
  • Jason G. Cyster
چکیده

B cell entry to lymph nodes and Peyer's patches depends on chemokine receptor signaling, but the principal chemokine involved has not been defined. Here we show that the homing of CXCR4-/- B cells is suppressed in CCL19 (ELC)- and CCL21 (SLC)-deficient paucity of lymph node T cells mice, but not in wild-type mice. We also find that CXCR4 can contribute to T cell homing. Using intravital microscopy, we find that B cell adhesion to high endothelial venules (HEVs) is disrupted when CCR7 and CXCR4 are predesensitized. In Peyer's patches, B cell entry is dependent on CXCR5 in addition to CCR7/CXCR4. CXCL12 (SDF1) is displayed broadly on HEVs, whereas CXCL13 (BLC) is found selectively on Peyer's patch follicular HEVs. These findings establish the principal chemokine and chemokine receptor requirements for B cell entry to lymph nodes and Peyer's patches.

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عنوان ژورنال:
  • The Journal of Experimental Medicine

دوره 196  شماره 

صفحات  -

تاریخ انتشار 2002