Combined assessment of MHC binding and antigen abundance improves T cell epitope predictions.
Combined assessment of MHC binding and antigen abundance improves T cell epitope predictions.
复制标题
DOI:
10.1016/j.isci.2022.103850
复制
发表时间:
2022-02-18
期刊:
影响因子:
5.8
通讯作者:
Peters B
中科院分区:
文献类型:
--
作者:
Koşaloğlu-Yalçın Z;Lee J;Greenbaum J;Schoenberger SP;Miller A;Kim YJ;Sette A;Nielsen M;Peters B
Many steps of the MHC class I antigen processing pathway can be predicted using computational methods. Here we show that epitope predictions can be further improved by considering abundance levels of peptides' source proteins. We utilized biophysical principles and existing MHC binding prediction tools in concert with abundance estimates of source proteins to derive a function that estimates the likelihood of a peptide to be an MHC class I ligand. We found that this combination improved predictions for both naturally eluted ligands and cancer neoantigen epitopes. We compared the use of different measures of antigen abundance, including mRNA expression by RNA-Seq, gene translation by Ribo-Seq, and protein abundance by proteomics on a dataset of SARS-CoV-2 epitopes. Epitope predictions were improved above binding predictions alone in all cases and gave the highest performance when using proteomic data. Our results highlight the value of incorporating antigen abundance levels to improve epitope predictions. HLA ligands originate from highly expressed transcripts Antigen abundance and HLA binding are independent predictors of ligands and epitopes Utilizing RNA-Seq, Ribo-Seq, or proteomic data improves epitope predictions Cancer-type-matched TCGA RNA-Seq data can be used to estimate gene expression in patient Immunology; Mathematical biosciences; Computational bioinformatics
登录
查看更多内容
影响因子:
7.3
作者:
Bjerregaard AM;Nielsen M;Jurtz V;Barra CM;Hadrup SR;Szallasi Z;Eklund AC
通讯作者:
Eklund AC
影响因子:
32.4
作者:
Abelin JG;Keskin DB;Sarkizova S;Hartigan CR;Zhang W;Sidney J;Stevens J;Lane W;Zhang GL;Eisenhaure TM;Clauser KR;Hacohen N;Rooney MS;Carr SA;Wu CJ
通讯作者:
Wu CJ
影响因子:
6.4
作者:
Jorgensen, Kasper W.;Rasmussen, Michael;Nielsen, Morten
通讯作者:
Nielsen, Morten
影响因子:
64.8
作者:
Ghandi, Mahmoud;Huang, Franklin W.;Sellers, William R.
通讯作者:
Sellers, William R.
影响因子:
4.4
作者:
Hickman, HD;Luis, AD;Hildebrand, WH
通讯作者:
Hildebrand, WH