Abstract
The hemolysin oligomer promotes the proliferation of B-1a cells and the expression of CD25, which is indicative of cell activation, on B-1a cells. The upregulation of CD86 induced by the oligomer showed its selective bias for the B7-2 member of B7 family while the monomer failed to induce these effects. The oligomer induced the expression of CXCR3, associated with B cell activation, while the monomer induced the expression of CXCL4, a powerful angiostatic chemokine. In conclusion, we found that B-1a cells responded to the apoptogenic monomer by expressing CXCL4, whereas oligomerization of the immunogen induced CXCR3 to shift the response towards activation.
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Mukherjee, G., Banerjee, K. & Biswas, T. Oligomerization of Vibrio Cholerae Hemolysin Induces CXCR3 Upregulation and Activation of B-1a Cell. Cell Mol Immunol 5, 231–234 (2008). https://doi.org/10.1038/cmi.2008.29
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DOI: https://doi.org/10.1038/cmi.2008.29