Chemotactic responsiveness toward ligands for CXCR3 and CXCR4 is regulated on plasma blasts during the time course of a memory immune response

J Immunol. 2002 Aug 1;169(3):1277-82. doi: 10.4049/jimmunol.169.3.1277.

Abstract

Plasma blasts formed during memory immune responses emigrate from the spleen to migrate into the bone marrow and into chronically inflamed tissues where they differentiate into long-lived plasma cells. In this study, we analyze the chemokine responsiveness of plasma blasts formed after secondary immunization with OVA. Starting from day 4 and within approximately 48 h, OVA-specific plasma blasts emigrate from spleen and appear in the bone marrow. Although these migratory cells have lost their responsiveness to many B cell attracting chemokines, e.g., CXC chemokine ligand (CXCL)13 (B lymphocyte chemoattractant), they migrate toward CXCL12 (stromal cell-derived factor 1 alpha), and toward the inflammatory chemokines CXCL9 (monokine induced by IFN-gamma), CXCL10 (IFN-gamma-inducible protein 10), and CXCL11 (IFN-inducible T cell alpha chemoattractant). However, the responsiveness of plasma blasts to these chemokines is restricted to a few days after their emigration from the spleen, indicating a role for these molecules and their cognate receptors, i.e., CXCR3 and CXCR4, in the regulation of plasma blast migration into the bone marrow and/or inflamed tissues.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Movement
  • Chemotaxis*
  • Female
  • Immunization
  • Immunoglobulin G / biosynthesis
  • Immunologic Memory*
  • Mice
  • Mice, Inbred BALB C
  • Ovalbumin / immunology
  • Plasma Cells / physiology*
  • Receptors, CXCR3
  • Receptors, CXCR4 / physiology*
  • Receptors, Chemokine / physiology*

Substances

  • Cxcr3 protein, mouse
  • Immunoglobulin G
  • Receptors, CXCR3
  • Receptors, CXCR4
  • Receptors, Chemokine
  • Ovalbumin