The role of APOBEC3B in lung tumor evolution and targeted cancer therapy resistance

Deborah R. Caswell, Philippe Gui, Manasi K. Mayekar, Emily K. Law, Oriol Pich, Chris Bailey, Jesse Boumelha, D. Lucas Kerr, Collin M. Blakely, Tadashi Manabe, Carlos Martinez-Ruiz, Bjorn Bakker, Juan De Dios Palomino Villcas, Natalie I. Vokes, Michelle Dietzen, Mihaela Angelova, Beatrice Gini, Whitney Tamaki, Paul Allegakoen, Wei WuTimothy J. Humpton, William Hill, Mona Tomaschko, Wei Ting Lu, Franziska Haderk, Maise Al Bakir, Ai Nagano, Francisco Gimeno-Valiente, Sophie de Carné Trécesson, Roberto Vendramin, Vittorio Barbè, Miriam Mugabo, Clare E. Weeden, Andrew Rowan, Caroline E. McCoach, Bruna Almeida, Mary Green, Carlos Gomez, Shigeki Nanjo, Dora Barbosa, Chris Moore, Joanna Przewrocka, James R.M. Black, Eva Grönroos, Alejandro Suarez-Bonnet, Simon L. Priestnall, Caroline Zverev, Scott Lighterness, James Cormack, Victor Olivas, Lauren Cech, Trisha Andrews, Brandon Rule, Yuwei Jiao, Xinzhu Zhang, Paul Ashford, Cameron Durfee, Subramanian Venkatesan, Nuri Alpay Temiz, Lisa Tan, Lindsay K. Larson, Prokopios P. Argyris, William L. Brown, Elizabeth A. Yu, Julia K. Rotow, Udayan Guha, Nitin Roper, Johnny Yu, Rachel I. Vogel, Nicholas J. Thomas, Antonio Marra, Pier Selenica, Helena Yu, Samuel F. Bakhoum, Su Kit Chew, Jorge S. Reis-Filho, Mariam Jamal-Hanjani, Karen H. Vousden, Nicholas McGranahan, Eliezer M. Van Allen, Nnennaya Kanu, Reuben S. Harris, Julian Downward, Trever G. Bivona, Charles Swanton

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

In this study, the impact of the apolipoprotein B mRNA-editing catalytic subunit-like (APOBEC) enzyme APOBEC3B (A3B) on epidermal growth factor receptor (EGFR)-driven lung cancer was assessed. A3B expression in EGFR mutant (EGFRmut) non-small-cell lung cancer (NSCLC) mouse models constrained tumorigenesis, while A3B expression in tumors treated with EGFR-targeted cancer therapy was associated with treatment resistance. Analyses of human NSCLC models treated with EGFR-targeted therapy showed upregulation of A3B and revealed therapy-induced activation of nuclear factor kappa B (NF-κB) as an inducer of A3B expression. Significantly reduced viability was observed with A3B deficiency, and A3B was required for the enrichment of APOBEC mutation signatures, in targeted therapy-treated human NSCLC preclinical models. Upregulation of A3B was confirmed in patients with NSCLC treated with EGFR-targeted therapy. This study uncovers the multifaceted roles of A3B in NSCLC and identifies A3B as a potential target for more durable responses to targeted cancer therapy.

Original languageEnglish (US)
Pages (from-to)60-73
Number of pages14
JournalNature Genetics
Volume56
Issue number1
DOIs
StatePublished - Jan 2024

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