インターロイキン-21
“IL-21 induces both rapid maturation of human CD34+ cell precursors towards NK cells and acquisition of surface killer Ig-like receptors”. European Journal of Immunology 33 (12): 3439–47. (December 2003). doi:10.1002/eji.200324533. PMID 14635054.
“Cutting edge: IL-21 is a switch factor for the production of IgG1 and IgG3 by human B cells”. Journal of Immunology 172 (9): 5154–7. (May 2004). doi:10.4049/jimmunol.172.9.5154. PMID 15100251.
“IFN-alpha regulates IL-21 and IL-21R expression in human NK and T cells”. Journal of Leukocyte Biology 76 (2): 416–22. (August 2004). doi:10.1189/jlb.1003488. PMID 15178704.
“[Cloning and expression of human interleukin-21 cDNA in E.