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Citations to this article

CCR10 expression is a common feature of circulating and mucosal epithelial tissue IgA Ab-secreting cells
Eric J. Kunkel, … , Edward P. Bowman, Eugene C. Butcher
Eric J. Kunkel, … , Edward P. Bowman, Eugene C. Butcher
Published April 1, 2003
Citation Information: J Clin Invest. 2003;111(7):1001-1010. https://doi.org/10.1172/JCI17244.
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CCR10 expression is a common feature of circulating and mucosal epithelial tissue IgA Ab-secreting cells

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Abstract

The dissemination of IgA-dependent immunity between mucosal sites has important implications for mucosal immunoprotection and vaccine development. Epithelial cells in diverse gastrointestinal and nonintestinal mucosal tissues express the chemokine MEC/CCL28. Here we demonstrate that CCR10, a receptor for MEC, is selectively expressed by IgA Ab-secreting cells (large s/cIgA+CD38hiCD19int/–CD20–), including circulating IgA+ plasmablasts and almost all IgA+ plasma cells in the salivary gland, small intestine, large intestine, appendix, and tonsils. Few T cells in any mucosal tissue examined express CCR10. Moreover, tonsil IgA plasmablasts migrate to MEC, consistent with the selectivity of CCR10 expression. In contrast, CCR9, whose ligand TECK/CCL25 is predominantly restricted to the small intestine and thymus, is expressed by a fraction of IgA Ab-secreting cells and almost all T cells in the small intestine, but by only a small percentage of plasma cells and plasmablasts in other sites. These results point to a unifying role for CCR10 and its mucosal epithelial ligand MEC in the migration of circulating IgA plasmablasts and, together with other tissue-specific homing mechanisms, provides a mechanistic basis for the specific dissemination of IgA Ab-secreting cells after local immunization.

Authors

Eric J. Kunkel, Chang H. Kim, Nicole H. Lazarus, Mark A. Vierra, Dulce Soler, Edward P. Bowman, Eugene C. Butcher

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