PMID- 33338400 OWN - NLM STAT- MEDLINE DCOM- 20210225 LR - 20210304 IS - 2405-4720 (Electronic) IS - 2405-4712 (Print) IS - 2405-4712 (Linking) VI - 12 IP - 2 DP - 2021 Feb 17 TI - RBM-MHC: A Semi-Supervised Machine-Learning Method for Sample-Specific Prediction of Antigen Presentation by HLA-I Alleles. PG - 195-202.e9 LID - S2405-4712(20)30456-7 [pii] LID - 10.1016/j.cels.2020.11.005 [doi] AB - The recent increase of immunopeptidomics data, obtained by mass spectrometry or binding assays, opens up possibilities for investigating endogenous antigen presentation by the highly polymorphic human leukocyte antigen class I (HLA-I) protein. State-of-the-art methods predict with high accuracy presentation by HLA alleles that are well represented in databases at the time of release but have a poorer performance for rarer and less characterized alleles. Here, we introduce a method based on Restricted Boltzmann Machines (RBMs) for prediction of antigens presented on the Major Histocompatibility Complex (MHC) encoded by HLA genes-RBM-MHC. RBM-MHC can be trained on custom and newly available samples with no or a small amount of HLA annotations. RBM-MHC ensures improved predictions for rare alleles and matches state-of-the-art performance for well-characterized alleles while being less data demanding. RBM-MHC is shown to be a flexible and easily interpretable method that can be used as a predictor of cancer neoantigens and viral epitopes, as a tool for feature discovery, and to reconstruct peptide motifs presented on specific HLA molecules. CI - Copyright (c) 2020 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Bravi, Barbara AU - Bravi B AD - Laboratoire de Physique de l'Ecole Normale Superieure, ENS, Universite PSL, CNRS, Sorbonne Universite, Universite de Paris, F-75005 Paris, France. Electronic address: bbravi.bb@gmail.com. FAU - Tubiana, Jerome AU - Tubiana J AD - Blavatnik School of Computer Science, Tel Aviv University, 6139601 Tel Aviv, Israel. FAU - Cocco, Simona AU - Cocco S AD - Laboratoire de Physique de l'Ecole Normale Superieure, ENS, Universite PSL, CNRS, Sorbonne Universite, Universite de Paris, F-75005 Paris, France. Electronic address: simona.cocco@phys.ens.fr. FAU - Monasson, Remi AU - Monasson R AD - Laboratoire de Physique de l'Ecole Normale Superieure, ENS, Universite PSL, CNRS, Sorbonne Universite, Universite de Paris, F-75005 Paris, France. Electronic address: remi.monasson@phys.ens.fr. FAU - Mora, Thierry AU - Mora T AD - Laboratoire de Physique de l'Ecole Normale Superieure, ENS, Universite PSL, CNRS, Sorbonne Universite, Universite de Paris, F-75005 Paris, France. Electronic address: thierry.mora@phys.ens.fr. FAU - Walczak, Aleksandra M AU - Walczak AM AD - Laboratoire de Physique de l'Ecole Normale Superieure, ENS, Universite PSL, CNRS, Sorbonne Universite, Universite de Paris, F-75005 Paris, France. Electronic address: aleksandra.walczak@phys.ens.fr. LA - eng PT - Journal Article DEP - 20201217 PL - United States TA - Cell Syst JT - Cell systems JID - 101656080 RN - 0 (Epitopes) RN - 0 (HLA Antigens) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Peptides) SB - IM MH - Algorithms MH - Alleles MH - Antigen Presentation/genetics/*immunology MH - Computational Biology/*methods MH - Databases, Protein MH - Epitopes MH - HLA Antigens/genetics/immunology MH - Histocompatibility Antigens Class I/*genetics/*immunology MH - Humans MH - Machine Learning MH - Major Histocompatibility Complex/immunology MH - Mass Spectrometry/methods MH - Models, Theoretical MH - Peptides/chemistry MH - Protein Binding PMC - PMC7895905 OTO - NOTNLM OT - HLA prediction OT - Restricted Boltzmann Machines OT - SARS-CoV-2 epitopes OT - antigen presentation OT - immunopeptidomics OT - machine learning OT - neoantigen discovery COIS- Declaration of Interests The authors declare no competing interests. EDAT- 2020/12/19 06:00 MHDA- 2021/02/26 06:00 PMCR- 2021/02/17 CRDT- 2020/12/18 20:08 PHST- 2020/05/19 00:00 [received] PHST- 2020/09/18 00:00 [revised] PHST- 2020/11/17 00:00 [accepted] PHST- 2020/12/19 06:00 [pubmed] PHST- 2021/02/26 06:00 [medline] PHST- 2020/12/18 20:08 [entrez] PHST- 2021/02/17 00:00 [pmc-release] AID - S2405-4712(20)30456-7 [pii] AID - 10.1016/j.cels.2020.11.005 [doi] PST - ppublish SO - Cell Syst. 2021 Feb 17;12(2):195-202.e9. doi: 10.1016/j.cels.2020.11.005. Epub 2020 Dec 17.