Figure 4From: Cloning and characterization of an adenoviral vector for highly efficient and doxycycline – suppressible expression of bioactive human single – chain interleukin 12 in colon cancerComparison of bioactivity. Comparison of interferon-γ induction by incubation of mononuclear cells (MNC) with either adenovirally generated single-chain human interleukin-12 or purified standardized heterodimeric human interleukin-12 as quantified by ELISA.Back to article page