First Author | Caven TH | Year | 2005 |
Journal | Cell Immunol | Volume | 238 |
Issue | 2 | Pages | 123-34 |
PubMed ID | 16600195 | Mgi Jnum | J:108139 |
Mgi Id | MGI:3623076 | Doi | 10.1016/j.cellimm.2006.03.001 |
Citation | Caven TH, et al. (2005) IL-21 dependent IgE production in human and mouse in vitro culture systems is cell density and cell division dependent and is augmented by IL-10. Cell Immunol 238(2):123-34 |
abstractText | IL-21 is known to enhance immunoglobulin production using human in vitro models. Using either PBMC or purified tonsilar B cells both stimulated with anti-CD40, IL-4+/-IL-21, this enhancement was shown to correlate with increased cell division especially for IgE and to a lesser extent for IgM and total IgG. Cell division was monitored by CFSE staining and maximum cell division was found at low initial cell plating densities. A correlation between increased cell division and IL-10-mediated enhancement of IgE production was also seen; however, increased cell division plays a smaller role with IL-10 than IL-21. This is further emphasized in that when IL-10 and IL-21 were added together there was a further synergistic increase in IgE seen, but no accompanying further increase in cell division. The mouse system was also examined for IL-21 effects as a function of cell concentration, and as in humans, IL-21 added to murine cells increased IgE production over IL-4/CD40 stimulated cells at lower cell concentrations; however, IL-21 significantly reduced IgE at higher plated cell concentrations. |