Related Experiment Video
Updated: Dec 19, 2025
10:33
Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
Published on: September 4, 2017
16.3K
PHA stimulation may be useful for FDXR gene expression-based biodosimetry
Habibeh Vosoughi1, Hosein Azimian2, Sara Khademi3
1Department of Medical Physics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Iranian Journal of Basic Medical Sciences
|June 4, 2020
Summary
Cell stimulation impacts gene expression biodosimetry differently depending on the gene. FDXR expression increased with PHA stimulation, suggesting its utility for improving radiation dose estimation sensitivity.
Area of Science:
- Biomedical science
- Molecular biology
- Radiation oncology
Background:
- Ionizing radiation (IR) is crucial in medicine but poses health risks.
- Biodosimetry methods estimate radiation dose, often using cell proliferation.
- Gene expression analysis offers a novel approach to biodosimetry.
Purpose of the Study:
- To investigate the effect of cell stimulation on gene expression biodosimetry.
- To assess if cell stimulation enhances the sensitivity of gene expression-based radiation dose estimation.
Main Methods:
- Blood samples from 15 patients exposed to TC-99 MIBI were analyzed.
- Lymphocytes were isolated and stimulated with phytohemagglutinin (PHA).
- XPA and FDXR gene expression levels were quantified using Real-Time PCR.
Main Results:
- PHA stimulation significantly increased FDXR expression in irradiated lymphocytes.
- PHA stimulation significantly decreased XPA expression.
- A significant increasing trend in FDXR expression was observed post-stimulation.
Conclusions:
- The effect of PHA activation in gene expression biodosimetry is gene-dependent.
- Cell stimulation, particularly for genes like FDXR, can enhance biodosimetry sensitivity.
- FDXR expression shows promise for improving radiation dose estimation techniques.
