Nature Communications (Feb 2018)

Bifunctional immune checkpoint-targeted antibody-ligand traps that simultaneously disable TGFβ enhance the efficacy of cancer immunotherapy

  • Rajani Ravi,
  • Kimberly A. Noonan,
  • Vui Pham,
  • Rishi Bedi,
  • Alex Zhavoronkov,
  • Ivan V. Ozerov,
  • Eugene Makarev,
  • Artem V. Artemov,
  • Piotr T. Wysocki,
  • Ranee Mehra,
  • Sridhar Nimmagadda,
  • Luigi Marchionni,
  • David Sidransky,
  • Ivan M. Borrello,
  • Evgeny Izumchenko,
  • Atul Bedi

DOI
https://doi.org/10.1038/s41467-017-02696-6
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 14

Abstract

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Antitumor T cells can be inhibited by a TGFβ rich tumor microenvironment. The authors develop bifunctional proteins comprising CTLA-4 or PD-L1 immune checkpoint-targeted antibodies fused to a “TGFβ trap” and show that they counteract tumor immune tolerance and enhance the efficacy of these antibodies.