Interferon γ and Its Important Roles in Promoting and Inhibiting Spontaneous and Therapeutic Cancer Immunity

被引:410
作者
Alspach, Elise [1 ]
Lussier, Danielle M. [1 ]
Schreiber, Robert D. [1 ]
机构
[1] Washington Univ, Dept Pathol & Immunol, Sch Med, St Louis, MO 63110 USA
关键词
NECROSIS-FACTOR-ALPHA; RECEPTOR-BETA CHAIN; IFN-GAMMA; T-CELLS; IN-VIVO; TYROSINE PHOSPHORYLATION; MONOCLONAL-ANTIBODIES; MACROPHAGE ACTIVATION; TRANSCRIPTION FACTOR; SIGNAL-TRANSDUCTION;
D O I
10.1101/cshperspect.a028480
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Originally identified in studies of cellular resistance to viral infection, interferon (IFN)-gamma is now known to represent a distinct member of the IFN family and plays critical roles not only in orchestrating both innate and adaptive immune responses against viruses, bacteria, and tumors, but also in promoting pathologic inflammatory processes. IFN-gamma production is largely restricted to T lymphocytes and natural killer (NK) cells and can ultimately lead to the generation of a polarized immune response composed of T helper (Th) 1 CD4(+) T cells and CD8(+) cytolytic T cells. In contrast, the temporally distinct elaboration of IFN-gamma in progressively growing tumors also promotes a state of adaptive resistance caused by the up-regulation of inhibitory molecules, such as programmed-death ligand 1 (PD-L1) on tumor cell targets, and additional host cells within the tumor microenvironment. This review focuses on the diverse positive and negative roles of IFN-gamma in immune cell activation and differentiation leading to protective immune responses, as well as the paradoxical effects of IFN-gamma within the tumor microenvironment that determine the ultimate fate of that tumor in a cancer-bearing individual.
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页数:20
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