Comprehensive genomic characterization of early-stage bladder cancer

Frederik Prip, Philippe Lamy, Sia Viborg Lindskrog, Trine Strandgaard, Iver Nordentoft, Karin Birkenkamp-Demtröder, Nicolai Juul Birkbak, Nanna Kristjánsdóttir, Asbjørn Kjær, Tine G. Andreasen, Johanne Ahrenfeldt, Jakob Skou Pedersen, Asta Mannstaedt Rasmussen, Gregers G. Hermann, Karin Mogensen, Astrid C. Petersen, Arndt Hartmann, Marc Oliver Grimm, Marcus Horstmann, Roman NawrothUlrika Segersten, Danijel Sikic, Kim E.M. van Kessel, Ellen C. Zwarthoff, Tobias Maurer, Tatjana Simic, Per Uno Malmström, Núria Malats, Jørgen Bjerggaard Jensen, Francisco X. Real, Lars Dyrskjøt*, UROMOL Consortium

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

2 Citationer (Scopus)

Abstract

Understanding the molecular landscape of nonmuscle-invasive bladder cancer (NMIBC) is essential to improve risk assessment and treatment regimens. We performed a comprehensive genomic analysis of patients with NMIBC using whole-exome sequencing (n = 438), shallow whole-genome sequencing (n = 362) and total RNA sequencing (n = 414). A large genomic variation within NMIBC was observed and correlated with different molecular subtypes. Frequent loss of heterozygosity in FGFR3 and 17p (affecting TP53) was found in tumors with mutations in FGFR3 and TP53, respectively. Whole-genome doubling (WGD) was observed in 15% of the tumors and was associated with worse outcomes. Tumors with WGD were genomically unstable, with alterations in cell-cycle-related genes and an altered immune composition. Finally, integrative clustering of multi-omics data highlighted the important role of genomic instability and immune cell exhaustion in disease aggressiveness. These findings advance our understanding of genomic differences associated with disease aggressiveness in NMIBC and may ultimately improve patient stratification.

OriginalsprogEngelsk
Artikelnummer2301
TidsskriftNature Genetics
Vol/bind57
Nummer1
Sider (fra-til)115-125
Antal sider11
ISSN1061-4036
DOI
StatusUdgivet - jan. 2025

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