Tumor-targeted 4-1BB agonists for combination with T cell bispecific antibodies as off-the-shelf therapy

Journal: Science Translational Medicine

Published: 2019-06-12

DOI: 10.1126/scitranslmed.aav5989

Affiliations: 9

Authors: 57

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Research Highlight

Drug engineered to activate tumour-specific T cells

© SCIEPRO/SCIENCE PHOTO LIBRARY/Getty

© SCIEPRO/SCIENCE PHOTO LIBRARY/Getty

A new drug candidate that enhances anti-tumour immune responses could offer a safe and effective way to bolster the cancer-killing potential of other immunotherapeutics.

A Roche-led team engineered an antibody-like drug to activate immune cells by binding a co-stimulatory molecule called 4-1BB found on the surface of T cells.

Unlike previous drugs designed to do the same thing — therapies that ultimately failed in clinical trials owing to liver toxicity problems — the new Roche agent does not damage the liver since it contains mutations in the region that binds to liver cells.

The drug also contains a domain that binds a protein found in the supporting tissues that surround many cancers, thereby allowing for selective targeting of tumours.

In mouse models and human tissue samples, the drug improved the functionality of tumour-infiltrating T cells. And combination treatment with other immunotherapy agents eradicated aggressive tumours in mice.

A variant of this novel drug is now in early-stage human testing.

Supported content

  1. Science Translational Medicine 11, eaav5989 (2019). doi: 10.1126/scitranslmed.aav5989
Institutions Share
Roche Pharma Research and Early Development (Roche pRED), Switzerland 0.74
Wake Forest School of Medicine (WFSM), WFU, United States of America (USA) 0.09
Roche Diagnostics GmbH - Penzberg, Germany 0.05
Department of Biomedicine Basel, Switzerland 0.04
Center for Cellular Imaging and NanoAnalytics (C-CINA), UB, Switzerland 0.04
Caribbean Primate Research Center (CPRC), UPR, United States of America (USA) 0.02
Roche Translational and Clinical Research Center (TCRC), United States of America (USA) 0.02
University Hospital Basel (USB), UB, Switzerland 0.02

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