ArticleFrontiers in oncology2023
Case series on clinical applications of liquid biopsy in pediatric solid tumors: towards improved diagnostics and disease monitoring.
Article in Frontiers in oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 19 citations in OpenAlex.
- Cell-free DNA methylome and fragmentome analysis for relapse monitoring of Ewing sarcoma.EMBO molecular medicine · 2026Article
- The technology landscape for detection of DNA methylation in cancer liquid biopsies.Epigenetics · 2025Review
- A comprehensive overview of liquid biopsy applications in pediatric solid tumors.NPJ precision oncology · 2024Review
- Diagnosis of pediatric central nervous system tumors using methylation profiling of cfDNA from cerebrospinal fluid.Clinical epigenetics · 2024Article
- Insights into Personalized Care Strategies for Wilms Tumor: A Narrative Literature Review.Biomedicines · 2024Review
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Authors and funding
22 authors at 5 institutions in 2 countries.
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Abstract
Background and aims: Solid tumors account for about 30% of all pediatric cancers. The diagnosis is typically based on histological and molecular analysis of a primary tumor biopsy. Liquid biopsies carry several advantages over conventional tissue biopsy. However, their use for genomic analysis and response monitoring of pediatric solid tumors is still in experimental stages and mostly performed retrospectively without direct impact on patient management. In this case series we discuss six clinical cases of children with a solid tumor for whom a liquid biopsy assay was performed and demonstrate the potential of liquid biopsy for future clinical decision making. Methods: We performed quantitative real-time PCR (RT-qPCR), droplet digital PCR (ddPCR) or reduced representation bisulphite sequencing of cell-free DNA (cfRRBS) on liquid biopsies collected from six pediatric patients with a solid tumor treated between 2017 and 2023 at the Princess Máxima Center for Pediatric Oncology in the Netherlands. Results were used to aid in clinical decision making by contribution to establish a diagnosis, by prognostication and response to therapy monitoring. Results: In three patients cfRRBS helped to establish the diagnosis of a rhabdomyosarcoma, an Ewing sarcoma and a neuroblastoma (case 1-3). In two patients, liquid biopsies were used for prognostication, by MYCN ddPCR in a patient with neuroblastoma and by RT-qPCR testing rhabdomyosarcoma-specific mRNA in bone marrow of a patient with a rhabdomyosarcoma (case 4 and 5). In case 6, mRNA testing demonstrated disease progression and assisted clinical decision making. Conclusion: This case series illustrates the value of liquid biopsy. We further demonstrate and recommend the use of liquid biopsies to be used in conjunction with conventional methods for the determination of metastatic status, prognostication and monitoring of treatment response in patients with pediatric solid tumors.
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