PMID- 25095541 OWN - NLM STAT- MEDLINE DCOM- 20140909 LR - 20201226 IS - 0890-9016 (Print) IS - 0890-9016 (Linking) DP - 2013 TI - Evolution of studies of HLA class I antigen processing machinery (APM) components in malignant cells. PG - 453-63 AB - Following a description of the way studies of human leukocyte antigen (HLA) class I antigen expression by tumor cells have evolved through the years, the literature related to the frequency of defects in HLA class I antigen processing machinery (APM) component expression in various types of malignancies is reviewed. In addition, the clinical significance of defects in HLA class I APM components as well as the underlying molecular mechanisms are described. Lastly, potential strategies to overcome the defects in HLAclass I APM component expression and function are discussed. The information presented indicates a revival of the interest in the characterization of HLA class I APM component expression by tumor cells since these molecules may play an important role in the outcome of immunotherapy with inhibitory checkpoint molecule-specific monoclonal antibodies in patients with malignant disease. Furthermore, they may represent a useful prognostic biomarker to select patients who might benefit from these types of immunotherapy. FAU - Sabbatino, Francesco AU - Sabbatino F FAU - Schwab, Joseph H AU - Schwab JH FAU - Ferrone, Soldano AU - Ferrone S FAU - Ferrone, Cristina R AU - Ferrone CR LA - eng GR - R01CA110249/CA/NCI NIH HHS/United States GR - R01CA138188/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Review PL - United States TA - Clin Transpl JT - Clinical transplants JID - 8812419 RN - 0 (Antibodies, Monoclonal) RN - 0 (HLA Antigens) RN - 0 (Histocompatibility Antigens Class I) SB - IM MH - Animals MH - Antibodies, Monoclonal/*immunology/therapeutic use MH - Antigen Presentation/*immunology MH - HLA Antigens/*immunology MH - Histocompatibility Antigens Class I/*immunology MH - Humans MH - Neoplasms/*immunology/therapy EDAT- 2013/01/01 00:00 MHDA- 2014/09/10 06:00 CRDT- 2014/08/07 06:00 PHST- 2014/08/07 06:00 [entrez] PHST- 2013/01/01 00:00 [pubmed] PHST- 2014/09/10 06:00 [medline] PST - ppublish SO - Clin Transpl. 2013:453-63.