Abstract
Melanoma have been shown to escape immune surveillance by different mechanisms such as loss of HLA class I antigens, upregulation of nonclassical HLA-G antigen and Fas, increased secretion of immune suppressive cytokines and metabolites as well as altered expression of co-stimulatory and coinhibitory signals. Recently, an important role of B7-H1 and B7-H4 in the immune escape of melanoma has been described. High mRNA and/or protein expression levels of these coinhibitory molecules were detected in both melanoma cell lines and melanoma lesions when compared to melanocytes. However, their clinical relevance is currently controversially discussed regarding a correlation of B7-H family members with tumor grading and staging as well as survival of patients in melanoma.
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Abbreviations
- APC:
-
Antigen presenting cell
- BTLA:
-
B- and T-lymphocyte attenuator
- CTL:
-
Cytotoxic T lymphocyte
- CTLA4:
-
Cytotoxic T-lymphocyte antigen 4
- HLA:
-
Human leukocyte antigen
- IFN:
-
Interferon
- mAb:
-
Monoclonal antibody
- MFI:
-
Mean specific fluorescence intensity
- PBS:
-
Phosphate buffered saline
- PD1:
-
Programmed cell death
- TCR:
-
T cell receptor
- TIL:
-
Tumor-infiltrating lymphocyte
- β2-m:
-
β2-Microglobulin
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Acknowledgements
This work was supported from grants of the Mildred Scheel Cancer Foundation, the Wilhelm Sander Foundation and the intramural Wilhelm Roux Program.
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Seliger, B. (2014). B7-H Abnormalities in Melanoma and Clinical Relevance. In: Thurin, M., Marincola, F. (eds) Molecular Diagnostics for Melanoma. Methods in Molecular Biology, vol 1102. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-727-3_19
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DOI: https://doi.org/10.1007/978-1-62703-727-3_19
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