Fiche publication
Date publication
décembre 2023
Journal
Nature
Auteurs
Membres identifiés du Cancéropôle Est :
Dr CASASNOVAS Olivier
,
Pr FORNECKER Luc-Matthieu
,
Dr ROSSI Cédric
Tous les auteurs :
Alig SK, Esfahani MS, Garofalo A, Li MY, Rossi C, Flerlage T, Flerlage JE, Adams R, Binkley MS, Shukla N, Jin MC, Olsen M, Telenius A, Mutter JA, Schroers-Martin JG, Sworder BJ, Rai S, King DA, Schultz A, Bögeholz J, Su S, Kathuria KR, Liu CL, Kang X, Strohband MJ, Langfitt D, Pobre-Piza KF, Surman S, Tian F, Spina V, Tousseyn T, Buedts L, Hoppe R, Natkunam Y, Fornecker LM, Castellino SM, Advani R, Rossi D, Lynch R, Ghesquières H, Casasnovas O, Kurtz DM, Marks LJ, Link MP, André M, Vandenberghe P, Steidl C, Diehn M, Alizadeh AA
Lien Pubmed
Résumé
The scarcity of malignant Hodgkin and Reed-Sternberg (HRS) cells hamper tissue-based comprehensive genomic profiling of classic Hodgkin lymphoma (cHL). Liquid biopsies, in contrast, show promise for molecular profiling of cHL due to relatively high circulating tumor DNA (ctDNA) levels. Here, we show that the plasma representation of mutations exceeds the bulk tumor representation in most cases, making cHL particularly amenable to noninvasive profiling. Leveraging single-cell transcriptional profiles of cHL tumors, we demonstrate HRS ctDNA shedding to be shaped by DNASE1L3, whose increased tumor microenvironment-derived expression drives high ctDNA concentrations. Using this insight, we comprehensively profile 366 patients, revealing two distinct cHL genomic subtypes with characteristic clinical and prognostic correlates, as well as distinct transcriptional and immunological profiles. Furthermore, we identify a novel class of truncating IL4R-mutations that are dependent on IL13 signaling and therapeutically targetable with IL4R blocking antibodies. Finally, using PhasED-Seq we demonstrate the clinical value of pre- and on-treatment ctDNA levels for longitudinally refining cHL risk prediction, and for detection of radiographically occult minimal residual disease. Collectively, these results support the utility of noninvasive strategies for genotyping and dynamic monitoring of cHL as well as capturing molecularly distinct subtypes with diagnostic, prognostic, and therapeutic potential.
Référence
Nature. 2023 12 11;:
