Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Clinical significance of cell-free DNA as a prognostic biomarker in patients with diffuse large B-cell lymphoma

Sat Apr 20 23:30:18 2024

(2019) Clinical significance of cell-free DNA as a prognostic biomarker in patients with diffuse large B-cell lymphoma. Blood Research. pp. 114-119. ISSN 2287-979X

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Background Cell-free DNA (cfDNA) has the potential to serve as a non-invasive prognostic biomarker in some types of neoplasia. The investigation of plasma concentration of cfDNA may reveal its use as a valuable biomarker for risk stratification of diffuse large B-cell lymphoma (DLBCL). The present prognostic value of plasma cfDNA has not been widely confirmed in DLBCL subjects. Here, we evaluated cfDNA plasma concentration and assessed its potential prognostic value as an early DLBCL diagnostic tool. Methods cfDNA concentrations in plasma samples from 40 patients with DLBCL during diagnosis and of 38 normal controls were determined with quantitative polymerase chain reaction (qPCR) for the multi-locus L1PA2 gene. Results Statistically significant elevation in plasma cfDNA concentrations was observed in patients with DLBCL as compared to that in normal controls (P< 0.05). A cutoff point of 2.071 ng/mL provided 82.5 sensitivity and 62.8 specificity and allowed successful discrimination of patients with DLBCL from normal controls (area under the curve=0.777; P=0.00003). Furthermore, patients with DLBCL showing higher concentrations of cfDNA had shorter overall survival (median, 9 mo; P=0.022) than those with lower cfDNA levels. In addition, elevated cfDNA concentration was significantly associated with age, B-symptoms, International Prognostic Index (IPI) score, and different stages of disease (all P< 0.05). Conclusion Quantification of cfDNA with qPCR at the time of diagnosis may allow identification of patients with high cfDNA concentration, which correlates with aggressive clinical outcomes and adverse prognosis.

Item Type: Article
Manoochehrabadi, S.UNSPECIFIED
Keywords: Cell-free DNA Biomarker Prognosis Quantitative PCR DLBCL circulating tumor DNA lung-cancer gene-expression plasma quantification serum association diagnosis marker Hematology
Page Range: pp. 114-119
Journal or Publication Title: Blood Research
Journal Index: ISI
Volume: 54
Number: 2
Identification Number:
ISSN: 2287-979X
Depositing User: مهندس مهدی شریفی

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