Blood
Blood
4 years ago

CTLA-4: a moving target in immunotherapy.

Behzad Rowshanravan, Neil Halliday, David M Sansom
CD28 and CTLA-4 are members of a family of Immunoglobulin-related receptors that are responsible for various aspects of T cell immune regulation. The family includes CD28, CTLA-4 and ICOS as well as other proteins including PD-1, BTLA and TIGIT. These receptors have both stimulatory (CD28, ICOS) as well as inhibitory roles (CTLA-4, PD-1, BTLA and TIGIT) in T cell function. Increasingly these pathways are targeted as part of immune modulatory strategies to treat cancers, referred to generically as immune checkpoint blockade, and conversely to treat autoimmunity and CTLA-4 deficiency. Here we focus on the biology of the CD28/CTLA-4 pathway as a framework for understanding the impacts of therapeutic manipulation of this pathway.

Publisher URL: http://doi.org/10.1182/blood-2017-06-741033

DOI: 10.1182/blood-2017-06-741033

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