• Media type: E-Article
  • Title: Cross-domain inhibition of TACE ectodomain
  • Contributor: Tape, Christopher J.; Willems, Sofie H.; Dombernowsky, Sarah L.; Stanley, Peter L.; Fogarasi, Marton; Ouwehand, Willem; McCafferty, John; Murphy, Gillian
  • imprint: Proceedings of the National Academy of Sciences, 2011
  • Published in: Proceedings of the National Academy of Sciences
  • Language: English
  • DOI: 10.1073/pnas.1017067108
  • ISSN: 0027-8424; 1091-6490
  • Origination:
  • Footnote:
  • Description: <jats:p>Proteolytic release from the cell surface is an essential activation event for many growth factors and cytokines. TNF-α converting enzyme (TACE) is a membrane-bound metalloprotease responsible for solubilizing many pathologically significant membrane substrates and is an attractive therapeutic target for the treatment of cancer and arthritis. Prior attempts to antagonize cell-surface TACE activity have focused on small-molecule inhibition of the metalloprotease active site. Given the highly conserved nature of metalloprotease active sites, this paradigm has failed to produce a truly specific TACE inhibitor and continues to obstruct the clinical investigation of TACE activity. We report the bespoke development of a specific TACE inhibitory human antibody using “two-step” phage display. This approach combines calculated selection conditions with antibody variable-domain exchange to direct individual antibody variable domains to desired epitopes. The resulting “cross-domain” human antibody is a previously undescribed selective TACE antagonist and provides a unique alternative to small-molecule metalloprotease inhibition.</jats:p>
  • Access State: Open Access