Droplet Digital PCR Development for Adenovirus Load Monitoring in Children after Hematopoietic Stem Cell Transplantation

Kazunori Haruta, Suguru Takeuchi, Makoto Yamaguchi, Kazuhiro Horiba, Takako Suzuki, Yuka Torii, Atsushi Narita, Hideki Muramatsu, Yoshiyuki Takahashi, Yoshinori Ito, Jun ichi Kawada

研究成果: ジャーナルへの寄稿学術論文査読

4 被引用数 (Scopus)

抄録

Human adenovirus (AdV) reactivation after hematopoietic stem cell transplantation (HSCT) is associated with life-threatening clinical manifestations. Although real-tme quantitative PCR (qPCR) has been widely used to measure AdV loads, it has not been standardized for AdV. Droplet digital PCR (ddPCR) is a novel pathogen detection technology that enables the absolute quantification of viral loads. ddPCR would enable a more accurate AdV DNA detection compared with qPCR. In this study, ddPCR was developed for AdV DNA and its performance characteristics compared with those of qPCR. AdV DNAemia incidence during the first 12 weeks after allogenic HSCT was then retrospectively examined by qPCR and ddPCR in 97 HSCT procedures using the preserved 545 DNA samples. ddPCR exhibited better reproducibility and sensitivity, as well as equivalent quantifiability, compared with qPCR. AdV DNA among HSCT patients was detected in 11 (2.0%) and 49 (9.0%) of 545 samples by qPCR and ddPCR, respectively. AdV DNA levels >1000 copies/mL were observed in five cases by qPCR and/or ddPCR. However, two patients developed fulminant hepatitis and died; other patients remained asymptomatic with subsequently undetectable AdV DNA. In conclusion, ddPCR was more sensitive and reproducible in detecting AdV DNA among pediatric HSCT recipients than qPCR. ddPCR offers the potential to provide a more accurate DNAemia detection, determine cutoff values for treatment initiation, and enable antiviral efficacy assessment.

本文言語英語
ページ(範囲)403-409
ページ数7
ジャーナルJournal of Molecular Diagnostics
25
6
DOI
出版ステータス出版済み - 06-2023
外部発表はい

All Science Journal Classification (ASJC) codes

  • 病理学および法医学
  • 分子医療

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