インターロイキン-21
Journal of Immunology 169 (7): 3600–5. (October 2002). doi:10.4049/jimmunol.169.7.3600. PMID 12244150.
“Human IL-21 and IL-4 bind to partially overlapping epitopes of common gamma-chain”. Biochemical and Biophysical Research Communications 300 (2): 291–6. (January 2003). doi:10.1016/S0006-291X(02)02836-X. PMID 12504082.
“IL-21 in synergy with IL-15 or IL-18 enhances IFN-gamma production in human NK and T cells”. Journal of Immunology 170 (11): 5464–9. (June 2003). doi:10.4049/jimmunol.170.11.5464. PMID 12759422.
“Interleukin-21 inhibits dendritic cell activation and maturation”. Blood 102 (12): 4090–8. (December 2003). doi:10.1182/blood-2003-03-0669. PMID 12893770.
複数の炎症性疾患に対して抗IL-21抗体が開発されている(Clinicaltrials.gov entries)。