ArticleTranslational pediatrics2023
RT-PCR demonstrates superior sensitivity and specificity in detecting the five neuroblastoma genes compared to the flow cytometry method for measurable residual disease.
Article in Translational pediatrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- [European journal of nuclear medicine and molecular imaging · 2026Observational
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13 authors.
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Abstract
Background: Exploring sensitive prognostic methods for patients with relapsed or refractory neuroblastoma (NB) is critical. The five NB genes (NB5) share a common trait: they are highly expressed in NB. Previous studies have identified their expression levels as markers for guiding micrometastasis. This study aimed to explore whether an improved NB5 detection method is superior to flow cytometry for predicting NB metastasis, measurable residual disease (MRD), and prognosis, and whether this result could serve as an independent factor to influence progression-free survival (PFS). Methods: We utilized reverse transcriptase polymerase chain reaction (RT-PCR) to assess the expression of NB5 ( Results: PB specimens showed 100% concordance with the BM specimens in terms of positive results. Furthermore, the BM specimens exhibited an additional 45.455% (5/11) positive results compared to the 34.091% (30/88) of PB specimens. The BM specimens were positive for NB5 assay, which was significantly higher than the positive results of flow cytometric MRD (15/88, 17.045%). NB5 was mainly expressed in newly diagnosed patients (P=0.043) and positive patients with flow cytometric MRD (P<0.001) or BM morphology (P<0.001). Positive rates of droplet digital PCR (ddPCR) were consistent with those of quantitative RT-PCR (qRT-PCR) in BM (13/18, 72.222%). However, in PB, the positive rate of ddPCR (2/5, 40.000%) was higher than that of qRT-PCR. A total of 38 specimens (BM, PB, CSF) were detected as positive under qRT-PCR. Among the positive results, the analysis revealed a significant difference between the Conclusions: In our study, the improved NB5 detection method showed significantly higher sensitivity in assessing tumor relapse or residual disease compared to flow cytometric MRD. Moreover, it provided a more accurate assessment of treatment efficacy and prognosis. These findings support NB5 detection as an effective method for further stratification and monitoring of patients with relapsed or refractory NB.
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