Evolving Concepts: Immunity in Oncology from Targets to Treatments
Table 1
B-7 family of receptor ligands expressed by antigen presenting cells and various malignancies: CD cluster derivation; B7.1 known as CD80; B7.2 known as CD86; CD-28 and CD-152 present on T-naïve cells; ICOS inducible costimulatory ligand; (+) with and (−) without; CD152 also known as CTLA4 cytotoxic T lymphocytes antigen-4; PD-1 programmed death-1 also known as CD279; PD-L1 programmed death-ligand 1 known as B7-H1 or CD274; PD-L2 programmed death-ligand 2, known as CD273 or B7-DC B-7 dendritic cell; IFN-γ interferon gamma; IL-2 interleukin 2; Ref reference.
B-7 family molecules
CD-designation
Major ligands on immune cells
Role immunity activation versus immune suppression
Malignancies expressing B-7 molecules
Ref
B7.1
CD80
CD28; CTLA4 (CD152)
(+) 2nd signal activation (−) second signal anergy