Title |
Co-inhibition of CD73 and A2AR Adenosine Signaling Improves Anti-tumor Immune Responses
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Published in |
Cancer Cell, September 2016
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DOI | 10.1016/j.ccell.2016.06.025 |
Pubmed ID | |
Authors |
Arabella Young, Shin Foong Ngiow, Deborah S. Barkauskas, Erin Sult, Carl Hay, Stephen J. Blake, Qihui Huang, Jing Liu, Kazuyoshi Takeda, Michele W.L. Teng, Kris Sachsenmeier, Mark J. Smyth |
Abstract |
Preclinical studies targeting the adenosinergic pathway have gained much attention for their clinical potential in overcoming tumor-induced immunosuppression. Here, we have identified that co-blockade of the ectonucleotidase that generates adenosine CD73 and the A2A adenosine receptor (A2AR) that mediates adenosine signaling in leuokocytes, by using compound gene-targeted mice or therapeutics that target these molecules, limits tumor initiation, growth, and metastasis. This tumor control requires effector lymphocytes and interferon-γ, while antibodies targeting CD73 promote an optimal therapeutic response in vivo when engaging activating Fc receptors. In a two-way mixed leukocyte reaction using a fully human anti-CD73, we demonstrated that Fc receptor binding augmented the production of proinflammatory cytokines. |
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Pharmacology, Toxicology and Pharmaceutical Science | 14 | 5% |
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