TNF-alpha is a member of a family of cytokines which also includes LIF , CNTF , Oncostatin M , ILI1 , and CT-1 . All known members of the TNF-alpha cytokine family induce hepatic expression of Acute phase proteins . http://www.grt.kyushu-u.ac.jp/spad/account/ligand/tnf-a.html