MHC Hammer reveals genetic and non-genetic HLA disruption in cancer evolution

Clare Puttick, Thomas P. Jones, Michelle M. Leung, Felipe Galvez-Cancino, Jiali Liu, Manuel Varas-Godoy, Andrew Rowan, Oriol Pich, Carlos Martinez-Ruiz, Robert Bentham, Krijn K. Dijkstra, James R.M. Black, Rachel Rosenthal, Nnennaya Kanu, Kevin Litchfield, Roberto Salgado, David A. Moore, Peter Van Loo, Mariam Jamal-Hanjani, Sergio A. QuezadaPhilip Crosbie, Vijay Joshi, Rajesh Shah, Paul Bishop, Leena Joseph, Kendadai Rammohan, Juliette Novasio, Felice Granato, Eustace Fontaine, Elaine Smith, Sarah Danson, Dean A. Fennell, Sean Dulloo, Domenic Marrone, Sridhar Rathinam, Rebecca Boyles, Molly Scotland, Mohamad Tufail, Azmina Sodha-Ramdeen, Apostolos Nakas, Amrita Bajaj, Patricia Georg, Serena Chee, Gary Middleton, Madava Djearaman, Helen Shackleford, Gerald Langman, Mandeesh Sangha, Aya Osman, Yien Ning Sophia Wong, TRACERx Consortium, Hugo J.W.L. Aerts

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Disruption of the class I human leukocyte antigen (HLA) molecules has important implications for immune evasion and tumor evolution. We developed major histocompatibility complex loss of heterozygosity (LOH), allele-specific mutation and measurement of expression and repression (MHC Hammer). We identified extensive variability in HLA allelic expression and pervasive HLA alternative splicing in normal lung and breast tissue. In lung TRACERx and lung and breast TCGA cohorts, 61% of lung adenocarcinoma (LUAD), 76% of lung squamous cell carcinoma (LUSC) and 35% of estrogen receptor-positive (ER+) cancers harbored class I HLA transcriptional repression, while HLA tumor-enriched alternative splicing occurred in 31%, 11% and 15% of LUAD, LUSC and ER+ cancers. Consistent with the importance of HLA dysfunction in tumor evolution, in LUADs, HLA LOH was associated with metastasis and LUAD primary tumor regions seeding a metastasis had a lower effective neoantigen burden than non-seeding regions. These data highlight the extent and importance of HLA transcriptomic disruption, including repression and alternative splicing in cancer evolution.
Original languageEnglish
Pages (from-to)2121-2131
Number of pages11
JournalNature Genetics
Volume56
Issue number10
Early online date1 Jan 2024
DOIs
Publication statusPublished - Oct 2024

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