PMID- 29868484 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220317 IS - 2234-943X (Print) IS - 2234-943X (Electronic) IS - 2234-943X (Linking) VI - 8 DP - 2018 TI - Development of a Human Leukocyte Antigen Score to Predict Progression-Free Survival in Head and Neck Squamous Cell Carcinoma Patients. PG - 168 LID - 10.3389/fonc.2018.00168 [doi] LID - 168 AB - BACKGROUND: In personalized medicine and treatment stratification of head and neck squamous cell carcinoma (HNSCC), the heterogeneous genetic background of patients is not considered. Human leukocyte antigen (HLA) alleles and HLA haplotypes (HLA traits) are linked to development of HNSCC and affect progression-free survival (PFS) of HNSCC patients but most head and neck oncologists are not familiar with HLA typing. Hence, we developed an HLA-score abstracting from complexity of HLA-typing results to facilitate potential use of HLA-associated hazard ratios (HR) for prognostic stratification. METHODS: The HR for PFS of 8 HLA traits shown to be independent predictors (Pi) of PFS in a test cohort (TC) of 90 HNSCC patients were used to build the HLA-score based on the natural logarithm (ln) of the Pi-associated HR. Crude ln-transformed HR of the eight Pi, alleles B*13 (2), B*35 (1), B*51 (2), DQB1*06 (1), homozygous Cw (1), homozygous DRB4 (2), and haplotypes A*01/B*08 (-6) and B*08/C*07 (4), were summed up to yield the individual patient's HLA-score. Receiver operating characteristic (ROC) and Kaplan-Meier curves were used to proof the suitability of the HLA-score as prognostic marker for PFS. An independent validation cohort (iVC) of 32 patients treated in the larynx-organ preservation trial DeLOS-II was utilized for validation. RESULTS: The individual HLA-scores (range -2 to 6) in TC classified HNSCC patients regarding PFS. ROC analysis (area under the curve = 0.750, 95% CI 0.665-0.836; P = 0.0000034) demonstrated an optimum cutoff for the HLA-score at 0.5 (97.9% sensitivity, 34.7% specificity), and 70/90 patients in TC with HLA-score > 0 had significant reduced PFS (P = 0.001). Applying the same classifier (HLA-score > 0) confirmed these findings in the iVC revealing reduced PFS of 25/32 patients (P = 0.040). CONCLUSION: HLA traits constitute critical Pi. Considering the HLA-score may potentially facilitate the use of genetic information from HLA typing for prognostic stratification, e.g., within clinical trials. FAU - Wichmann, Gunnar AU - Wichmann G AD - Clinic for Otorhinolaryngology, Head and Neck Surgery, University Hospital Leipzig, Leipzig, Germany. AD - LIFE - Leipzig Research Center for Civilization Diseases, University of Leipzig, Leipzig, Germany. FAU - Lehmann, Claudia AU - Lehmann C AD - Institute for Transfusion Medicine, University Hospital Leipzig, Leipzig, Germany. FAU - Herchenhahn, Cindy AU - Herchenhahn C AD - Clinic for Otorhinolaryngology, Head and Neck Surgery, University Hospital Leipzig, Leipzig, Germany. AD - Clinic for Anesthesiology and Intensive Care, University Hospital Leipzig, Leipzig, Germany. FAU - Kolb, Marlen AU - Kolb M AD - Clinic for Otorhinolaryngology, Head and Neck Surgery, University Hospital Leipzig, Leipzig, Germany. FAU - Hofer, Mathias AU - Hofer M AD - Clinic for Otorhinolaryngology, Head and Neck Surgery, University Hospital Leipzig, Leipzig, Germany. FAU - Wiegand, Susanne AU - Wiegand S AD - Clinic for Otorhinolaryngology, Head and Neck Surgery, University Hospital Leipzig, Leipzig, Germany. FAU - Dietz, Andreas AU - Dietz A AD - Clinic for Otorhinolaryngology, Head and Neck Surgery, University Hospital Leipzig, Leipzig, Germany. AD - LIFE - Leipzig Research Center for Civilization Diseases, University of Leipzig, Leipzig, Germany. LA - eng PT - Journal Article DEP - 20180517 PL - Switzerland TA - Front Oncol JT - Frontiers in oncology JID - 101568867 PMC - PMC5966661 OTO - NOTNLM OT - biomarker score OT - head and neck cancer OT - head and neck squamous cell carcinoma OT - human leukocyte antigen OT - human leukocyte antigen haplotype OT - independent predictor OT - larynx-organ preservation trial OT - progression-free survival EDAT- 2018/06/06 06:00 MHDA- 2018/06/06 06:01 PMCR- 2018/01/01 CRDT- 2018/06/06 06:00 PHST- 2018/03/07 00:00 [received] PHST- 2018/05/01 00:00 [accepted] PHST- 2018/06/06 06:00 [entrez] PHST- 2018/06/06 06:00 [pubmed] PHST- 2018/06/06 06:01 [medline] PHST- 2018/01/01 00:00 [pmc-release] AID - 10.3389/fonc.2018.00168 [doi] PST - epublish SO - Front Oncol. 2018 May 17;8:168. doi: 10.3389/fonc.2018.00168. eCollection 2018.