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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Horn, Lucas A. Haile, Samuel T. Ostrand-Rosenberg, Suzanne |
| Description | Author Affiliation: Ostrand-Rosenberg S ( Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, MD 21250 srosenbe@umbc.edu.); Horn LA ( Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, MD 21250.); Haile ST ( Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, MD 21250.) |
| Abstract | Programmed death ligand 1 (PD-L1, also known as B7 homolog 1 or CD274) is a major obstacle to antitumor immunity because it tolerizes/anergizes tumor-reactive T cells by binding to its receptor programmed death-1 (CD279), renders tumor cells resistant to CD8(+) T cell- and FasL-mediated lysis, and tolerizes T cells by reverse signaling through T cell-expressed CD80. PD-L1 is abundant in the tumor microenvironment, where it is expressed by many malignant cells, as well as by immune cells and vascular endothelial cells. The critical role of PD-L1 in obstructing antitumor immunity has been demonstrated in multiple animal models and in recent clinical trials. This article reviews the mechanisms by which PD-L1 impairs antitumor immunity and discusses established and experimental strategies for maintaining T cell activation in the presence of PD-L1-expressing cells in the tumor microenvironment. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| DOI | 10.4049/jimmunol.1401572 |
| Journal | The Journal of Immunology |
| Issue Number | 8 |
| Volume Number | 193 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2014-10-15 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Antigens, Cd274 Immunology Antigens, Cd80 Cd8-positive T-lymphocytes Immune Tolerance Neoplasms Programmed Cell Death 1 Receptor Animals Apoptosis Fas Ligand Protein Lymphocyte Activation Lymphocytes, Tumor-infiltrating Mice Signal Transduction Tumor Microenvironment Research Support, N.i.h., Extramural Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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