Skip to Main content Skip to Navigation
Journal articles

Production of stromal cell-derived factor 1 by mesothelial cells and effects of this chemokine on peritoneal B lymphocytes.

Abstract : B1a lymphocytes accumulate and proliferate in the peritoneal cavity. Stromal cell-derived factor 1 (SDF-1) is a chemotactic and growth promoting factor for B cell precursors. It is required for fetal liver B cell lymphopoiesis, which generates mostly B1a lymphocytes. Using immunohistochemistry with an anti-SDF-1 monoclonal antibody, we found that SDF-1 was produced by peritoneal mesothelial cells in adult mice. Peritoneal B1a lymphocytes expressed a functional SDF-1 receptor, as shown by actin polymerization experiments. In vitro, SDF-1 stimulated migration, proliferation of a minority of peritoneal B1a lymphocytes, and prevented apoptosis in a large fraction of cells. B1a cells migrating in response to SDF-1 were largely enriched in the CD5(high)CD43(high)B220(-)CD1d(-) subpopulation. In vivo, neutralization of SDF-1 for 3 weeks significantly decreased the number of peritoneal B1 cells. SDF-1 also acted on peritoneal B2 cells. These findings show that after the cessation of B cell lymphopoiesis in the liver, around birth, the persistence of B1a cells remains SDF-1 dependent, and that SDF-1 production by mesothelial cells plays a role in the peritoneal location of B1a cells. Thus, the role of mesothelial cells for B1a cells in adults may be similar to that of SDF-1-producing biliary ductal plate cells in the fetus, and to that of bone marrow stromal cells for B2 cell precursors.
Document type :
Journal articles
Complete list of metadata
Contributor : Françoise Baleux Connect in order to contact the contributor
Submitted on : Friday, August 10, 2007 - 5:11:34 PM
Last modification on : Tuesday, October 19, 2021 - 10:25:52 PM




Arnaud Foussat, Karl Balabanian, Ali Amara, Laurence Bouchet-Delbos, Ingrid Durand-Gasselin, et al.. Production of stromal cell-derived factor 1 by mesothelial cells and effects of this chemokine on peritoneal B lymphocytes.. European Journal of Immunology, Wiley-VCH Verlag, 2001, 31 (2), pp.350-9. ⟨10.1002/1521-4141(200102)31:2<350::AID-IMMU350>3.0.CO;2-0⟩. ⟨pasteur-00166878⟩



Les métriques sont temporairement indisponibles