Whole-exome tumor-agnostic ctDNA analysis enhances minimal residual disease detection and reveals relapse mechanisms in localized colon cancer

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Autores de INCLIVA

Participantes ajenos a INCLIVA

  • Henriksen, TV
  • Frydendahl, A
  • Gotchalck, KA
  • Tébar-Martínez, R
  • Andersen, CL

Grupos y Plataformas de I+D+i

Abstract

In stage 2-3 colon cancer (CC), postsurgery circulating tumor DNA (ctDNA) assessment is crucial for guiding adjuvant chemotherapy (ACT) decisions. While existing assays detect ctDNA and help identify high-risk persons with CC for recurrence, their limited sensitivity after surgery poses challenges in deciding on ACT. Additionally, a substantial portion of persons with CC fail to clear ctDNA after ACT, leading to recurrence. In this study, we performed whole-exome sequencing (WES) of ctDNA at different time points in participants with relapsed CC in two independent cohorts, alongside transcriptomic and proteomic analyses of metastases, to enhance comprehension of progression mechanisms. A plasma WES-based tumor-agnostic assay demonstrated higher sensitivity in detecting minimal residual disease (MRD) compared to current assays. Immune evasion appears to be the primary driver of progression in the localized CC setting, indicating the potential efficacy of immunotherapy for microsatellite stability in persons with CC. Organoid modeling further supports the promising potential of targeted therapy in eradicating MRD, surpassing conventional treatments.

Datos de la publicación

ISSN/ISSNe:
2662-1347, 2662-1347

Nature Cancer  NATURE PORTFOLIO

Tipo:
Article
Páginas:
1000-1016
PubMed:
40301653

Citas Recibidas en Web of Science: 3

Métricas

Filiaciones

Filiaciones no disponibles

Financiación

Proyectos y Estudios Clínicos

Unidad de biobancos y biomodelos de INCLIVA.

Investigador Principal: ANTONIO FERRANDEZ IZQUIERDO

PT20/00029 . INSTITUTO SALUD CARLOS III . 2021

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