< Can anyone suggest a cell line that consituatively expresses the CD23 Ag, FceRII?> Mark, The celline RAMOS.2G6.4C10 expresses CD23 on the surface, although it is dim. This line will up regulate CD23 expression in response to IL-4. I tried it myself and it works really nice. The reference for this line is: J. Immunol. Methods 132: 287-295, 1990. We purchased this line from ATCC (ATCC CRL-1923). Hope this works for you. Annuska Glas, Virginia Mason Research Center Seattle, WA 98101. Aglas@vmmc.org (206) 223 7516
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