NCIt definition : A Fab fragment of a recombinant, humanized monoclonal antibody directed against the
proinflammatory cytokine tumor necrosis factor-alpha (TNF-alpha), with anti-inflammatory
activity. Upon administration, certolizumab binds to TNF-alpha, preventing the interaction
of this cytokine with endogenous cell surface receptors, thereby rendering TNF-alpha
inactive and inhibiting TNF-mediated inflammatory responses. TNF-alpha is a protein
involved in inflammation, cell survival, and apoptosis.;