Aug 3, 2019

Developing Gender-Specific Gene Expression Biodosimetry Using a Panel of Radiation-Responsive Genes for Determining Radiation Dose in Human Peripheral Blood

Radiation Research
Shuang LiQing-Jie Liu


In a large-scale radiological incident, rapid and high-throughput biodosimetry would be needed. Gene expression-based biodosimetry is a promising approach to determine the dose received after radiation exposure. We previously identified 35 candidate genes as biodosimetry markers based on a systematic review. The goal of the current study was to establish and validate a specific gene expression-based radiological biodosimetry using a panel of highly radioresponsive genes in human peripheral blood for improving the accuracy of dose estimation. Human peripheral blood samples from 30 adult donors were irradiated to 0, 0.5, 1, 2, 3, 4, 6 and 8 Gy with 60Co γ rays at a dose rate of 1 Gy/min. We examined the expression patterns of candidate genes using real-time polymerase chain reaction (qRT-PCR) at 6, 12, 24 and 48 h postirradiation. Stepwise regression analysis was employed to develop the gene expression-based dosimetry models at each time point. Samples from another 10 healthy donors (blind samples) and four total-body irradiated (TBI) patients were used to validate the radiation dosimetry models. We observed significant linear dose-response relationships of CDKN1A, BAX, MDM2, XPC, PCNA, FDXR, GDF-15, DDB2, TNFRSF10B, PHPT1, ASTN2...Continue Reading

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Mentioned in this Paper

Real-Time Polymerase Chain Reaction
CCNG1 protein, human
XPC gene
Peripheral Blood
Candidate Disease Gene
BBC3 gene

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