Tracking the Evolution of Non-Small-Cell Lung Cancer

Background Among patients with non-small-cell lung cancer (NSCLC), data on intratumor heterogeneity and cancer genome evolution have been limited to small retrospective cohorts. We wanted to prospectively investigate intratumor heterogeneity in relation to clinical outcome and to determine the clonal nature of driver events and evolutionary processes in early-stage NSCLC. Methods In this prospective cohort study, we performed multiregion whole-exome sequencing on 100 early-stage NSCLC tumors that had been resected before systemic therapy. We sequenced and analyzed 327 tumor regions to define evolutionary histories, obtain a census of clonal and subclonal events, and assess the relationship between intratumor heterogeneity and recurrence-free survival. Results We observed widespread intratumor heterogeneity for both somatic copy-number alterations and mutations. Driver mutations in EGFR, MET, BRAF, and TP53 were almost always clonal. However, heterogeneous driver alterations that occurred later in evolution were found in more than 75% of the tumors and were common in PIK3CA and NF1 and in genes that are involved in chromatin modification and DNA damage response and repair. Genome doubling and ongoing dynamic chromosomal instability were associated with intratumor heterogeneity and resulted in parallel evolution of driver somatic copy-number alterations, including amplifications in CDK4, FOXA1, and BCL11A. Elevated copy-number heterogeneity was associated with an increased risk of recurrence or death (hazard ratio, 4.9; P=4.4×10-4), which remained significant in multivariate analysis. Conclusions Intratumor heterogeneity mediated through chromosome instability was associated with an increased risk of recurrence or death, a finding that supports the potential value of chromosome instability as a prognostic predictor. (Funded by Cancer Research UK and others; TRACERx ClinicalTrials.gov number, NCT01888601.).

Medienart:

Artikel

Erscheinungsjahr:

2017

Erschienen:

2017

Enthalten in:

Zur Gesamtaufnahme - volume:376

Enthalten in:

The New England journal of medicine - 376(2017), 22, Seite 2109

Sprache:

Englisch

Beteiligte Personen:

Mariam Jamal-Hanjani [VerfasserIn]
Gareth A Wilson [Sonstige Person]
Nicholas McGranahan [Sonstige Person]
Nicolai J Birkbak [Sonstige Person]
Thomas BK Watkins [Sonstige Person]
Selvaraju Veeriah [Sonstige Person]
Seema Shafi [Sonstige Person]
Diana H Johnson [Sonstige Person]
Richard Mitter [Sonstige Person]
Rachel Rosenthal [Sonstige Person]
Max Salm [Sonstige Person]
Stuart Horswell [Sonstige Person]
Mickael Escudero [Sonstige Person]
Nik Matthews [Sonstige Person]
Andrew Rowan [Sonstige Person]
Tim Chambers [Sonstige Person]
David A Moore [Sonstige Person]
Samra Turajlic [Sonstige Person]
Hang Xu [Sonstige Person]
Siow-Ming Lee [Sonstige Person]
Martin D Forster [Sonstige Person]
Tanya Ahmad [Sonstige Person]
Crispin T Hiley [Sonstige Person]
Christopher Abbosh [Sonstige Person]
Mary Falzon [Sonstige Person]
Elaine Borg [Sonstige Person]
Teresa Marafioti [Sonstige Person]
David Lawrence [Sonstige Person]
Martin Hayward [Sonstige Person]
Shyam Kolvekar [Sonstige Person]
Nikolaos Panagiotopoulos [Sonstige Person]
Sam M Janes [Sonstige Person]
Ricky Thakrar [Sonstige Person]
Asia Ahmed [Sonstige Person]
Fiona Blackhall [Sonstige Person]
Yvonne Summers [Sonstige Person]
Rajesh Shah [Sonstige Person]
Leena Joseph [Sonstige Person]
Anne M Quinn [Sonstige Person]
Phil A Crosbie [Sonstige Person]
Babu Naidu [Sonstige Person]
Gary Middleton [Sonstige Person]
Gerald Langman [Sonstige Person]
Simon Trotter [Sonstige Person]
Marianne Nicolson [Sonstige Person]
Hardy Remmen [Sonstige Person]
Keith Kerr [Sonstige Person]
Mahendran Chetty [Sonstige Person]
Lesley Gomersall [Sonstige Person]
Dean A Fennell [Sonstige Person]
Apostolos Nakas [Sonstige Person]
Sridhar Rathinam [Sonstige Person]
Girija Anand [Sonstige Person]
Sajid Khan [Sonstige Person]
Peter Russell [Sonstige Person]
Veni Ezhil [Sonstige Person]
Babikir Ismail [Sonstige Person]
Melanie Irvin-Sellers [Sonstige Person]
Vineet Prakash [Sonstige Person]
Jason F Lester [Sonstige Person]
Malgorzata Kornaszewska [Sonstige Person]
Richard Attanoos [Sonstige Person]
Haydn Adams [Sonstige Person]
Helen Davies [Sonstige Person]
Stefan Dentro [Sonstige Person]
Philippe Taniere [Sonstige Person]
Brendan O'Sullivan [Sonstige Person]
Helen L Lowe [Sonstige Person]
John A Hartley [Sonstige Person]
Natasha Iles [Sonstige Person]
Harriet Bell [Sonstige Person]
Yenting Ngai [Sonstige Person]
Jacqui A Shaw [Sonstige Person]
Javier Herrero [Sonstige Person]
Zoltan Szallasi [Sonstige Person]
Roland F Schwarz [Sonstige Person]
Aengus Stewart [Sonstige Person]
Sergio A Quezada [Sonstige Person]
John Le Quesne [Sonstige Person]
Peter Van Loo [Sonstige Person]
Caroline Dive [Sonstige Person]
Allan Hackshaw [Sonstige Person]
Charles Swanton [Sonstige Person]

Links:

search.proquest.com

BKL:

44.60

44.00

Themen:

Allografts
Census
Chromatin
Cyclin-dependent kinase 4
DNA damage
DNA repair
Death
Epidermal growth factor receptors
Evolution
Genomes
Genomic instability
Lung
Lung cancer
Medical research
Multivariate analysis
Mutation
Oncology
P53 Protein
Pathology
Survival
Transcription
Tumors

RVK:

RVK Klassifikation

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC1995100242