Microbiota-associated immunotherapy resistance caused by deficient PD-L2 - RGMb signaling

Oncoimmunology. 2023 Jun 28;12(1):2224679. doi: 10.1080/2162402X.2023.2224679. eCollection 2023.

Abstract

In a recent paper in Nature, Park et al. propose a mechanism through which intestinal dysbiosis compromises the efficacy of immunotherapy targeting the PD-L1/PD-1 interaction. Dysbiosis may upregulate a pair of checkpoint molecules, i.e. PD-L2 interacting with RGMb. Antibodies targeting PD-L2/RGMb can restore responses to PD-1 blockade in the context of dysbiosis.

Publication types

  • Editorial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Drug Resistance
  • Dysbiosis*
  • Gastrointestinal Microbiome
  • Humans
  • Immunotherapy / adverse effects
  • Programmed Cell Death 1 Receptor*
  • Signal Transduction

Substances

  • Programmed Cell Death 1 Receptor

Grants and funding

The work was supported by the Agence Nationale de la Recherche Association pour la Recherche sur le Cancer Cancéropôle Ile de France European Research Area Network on Cardiovascular Diseases [ERA-CVD, MINOTAUR]; Fondation Leducq Fondation pour la Recherche Médicale Institut National Du Cancer Institut National de la Santé et de la Recherche Médicale Institut Universitaire de France Ligue Contre le Cancer [EL2016.LNCC (VT/PLP)]; the RHU Torino Lumière the LabEx Immuno-Oncology [ANR-18-IDEX-0001]; Fondation Carrefour the European Union Horizon 2020 Project Oncobiome Gustave Roussy Odyssea a donation by Elior Chancellerie des universités de Paris (Legs Poix) Association “Le Cancer du Sein, Parlons-en!” AMMICa US23/CNRS UMS3655 the SIRIC Cancer Research and Personalized Medicine (CARPEM) the RHU Torino Lumière; the Seerave Foundation the European Union’s Horizon Europe research and innovation program [PREVALUNG-EU 101095604]; the SIRIC Stratified Oncology Cell DNA Repair and Tumor Immune Elimination (SOCRATE) Seerave Foundation