tumor necrosis factor-beta (beta)

tu·mor ne·cro·sis fac·tor-be·ta (β)

(tū'mŏr nĕ-krō'sis fak'tŏr bā'tă) A cytokine that is produced by CD4 and CD8 T cells after exposure to an antigen. Adverse responses include cachexia and toxic shock syndrome.