Interleukin (IL)-1F6, IL-1F8, and IL-1F9 signal through IL-1Rrp2 and IL-1RAcP to activate the pathway leading to NF-κB and MAPKs. - Towne,J.E.; Garka,K.E.; Renshaw,B.R.; Virca,G.D.; Sims,J.E. (J Biol Chem, 2004)