Targeting the adenosine pathway for cancer immunotherapy

Semin Immunol. 2019 Apr:42:101304. doi: 10.1016/j.smim.2019.101304.

Abstract

Suppression of anti-tumor immunity is recognized as a critical step in the development of many types of cancers. Over the past decade, a multitude of immunosuppressive pathways occurring in the tumor microenvironment (TME) have been identified. Amongst them, the hydrolysis of extracellular ATP into adenosine by ecto-nucleotidases has been increasingly documented as new immune checkpoint pathway that can significantly impair anti-tumor immunity of multiple types of cancer. In this review, we summarize past and recent research on the ecto-nucleotidases CD39 and CD73, conducted by our group and others, that recently lead to the development and clinical testing of adenosine targeting agents for cancer immunotherapy.

Keywords: A2a; Adenosine; Adora2a; CD39; CD73; Immune checkpoint; Immunotherapy.

Publication types

  • Review

MeSH terms

  • 5'-Nucleotidase / immunology*
  • Adenosine / immunology*
  • Animals
  • Antigens, CD / immunology*
  • Apyrase / immunology*
  • Humans
  • Immunotherapy*
  • Neoplasms / immunology
  • Neoplasms / therapy*
  • Signal Transduction

Substances

  • Antigens, CD
  • 5'-Nucleotidase
  • Apyrase
  • CD39 antigen
  • Adenosine