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Nat Rev Drug Discov. 2015 Sep;14(9):603-22. doi: 10.1038/nrd4596. Epub 2015 Jul 31.

Big opportunities for small molecules in immuno-oncology.

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1
GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, USA.

Abstract

The regulatory approval of ipilimumab (Yervoy) in 2011 ushered in a new era of cancer immunotherapies with durable clinical effects. Most of these breakthrough medicines are monoclonal antibodies that block protein-protein interactions between T cell checkpoint receptors and their cognate ligands. In addition, genetically engineered autologous T cell therapies have also recently demonstrated significant clinical responses in haematological cancers. Conspicuously missing from this class of therapies are traditional small-molecule drugs, which have previously served as the backbone of targeted cancer therapies. Modulating the immune system through a small-molecule approach offers several unique advantages that are complementary to, and potentially synergistic with, biologic modalities. This Review highlights immuno-oncology pathways and mechanisms that can be best or solely targeted by small-molecule medicines. Agents aimed at these mechanisms--modulation of the immune response, trafficking to the tumour microenvironment and cellular infiltration--are poised to significantly extend the scope of immuno-oncology applications and enhance the opportunities for combination with tumour-targeted agents and biologic immunotherapies.

PMID:
26228631
DOI:
10.1038/nrd4596
[Indexed for MEDLINE]

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