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CD47 blockade as another immune checkpoint therapy for cancer

The role of CD47—often expressed on tumor cells—as a 'don't eat me' signal that inhibits macrophage phagocytosis is well established. But new work reveals a major role for other immune cell types—T cells and dendritic cells—in the anti-tumor effects of therapeutic CD47 blockade.

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Figure 1: The CD47 immune checkpoint.


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This work was supported by US National Institutes of Health grant R01 CA169123.

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Correspondence to Robert H Vonderheide.

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Vonderheide, R. CD47 blockade as another immune checkpoint therapy for cancer. Nat Med 21, 1122–1123 (2015).

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