In-depth cell-free DNA sequencing reveals genomic landscape of Hodgkin's lymphoma and facilitates ultrasensitive residual disease detection

Sophia Sobesky, Laman Mammadova, Melita Cirillo, Esther E. E. Drees, Julia Mattlener, Helge Dörr, Janine Altmüller, Zhiyuan Shi, Paul J. Bröckelmann, Jonathan Weiss, Stefanie Kreissl, Stephanie Sasse, Roland T. Ullrich, Sarah Reinke, Wolfram Klapper, Elena Gerhard-Hartmann, Andreas Rosenwald, Margaretha G. M. Roemer, Peter Nürnberg, Anton HagenbeekJosée M. Zijlstra, Dirk Michiel Pegtel, Andreas Engert, Peter Borchmann, Bastian von Tresckow, Sven Borchmann

Research output: Contribution to JournalArticleAcademicpeer-review

5 Citations (Scopus)

Abstract

Background: Individualization of treatment in Hodgkin's lymphoma is necessary to improve cure rates and reduce treatment side effects. Currently, it is hindered by a lack of genomic characterization and sensitive molecular response assessment. Sequencing of cell-free DNA is a powerful strategy to understand the cancer genome and can be used for extremely sensitive disease monitoring. In Hodgkin's lymphoma, a high proportion of cell-free DNA is tumor-derived, whereas traditional tumor biopsies only contain a little tumor-derived DNA. Methods: We comprehensively genotype and assess minimal residual disease in 121 patients with baseline plasma as well as 77 follow-up samples from a subset of patients with our targeted cell-free DNA sequencing platform. Findings: We present an integrated landscape of mutations and copy number variations in Hodgkin's lymphoma. In addition, we perform a deep analysis of mutational processes driving Hodgkin's lymphoma, investigate the clonal structure of Hodgkin's lymphoma, and link several genotypes to Hodgkin's lymphoma phenotypes and outcome. Finally, we show that minimal residual disease assessment by repeat cell-free DNA sequencing, as early as a week after treatment initiation, predicts treatment response and progression-free survival, allowing highly improved treatment guidance and relapse prediction. Conclusions: Our targeted cell-free DNA sequencing platform reveals the genomic landscape of Hodgkin's lymphoma and facilitates ultrasensitive detection of minimal residual disease. Funding: Mildred Scheel School of Oncology Aachen-Bonn-Cologne-Düsseldorf MD Research Stipend, Next Generation Sequencing Competence Network grant 423957469, Deutsche Krebshilfe grant 70112502, Deutsche Forschungsgemeinschaft (DFG) grant EN 179/13-1, the HL MRD consortium, and the Frau-Weiskam und Christel Ruranski-Stiftung.
Original languageEnglish
Pages (from-to)1171-1193.e11
JournalMed
Volume2
Issue number10
DOIs
Publication statusPublished - 8 Oct 2021

Cite this