The aim of the present study was to evaluate the biodosimetric potential of peripheral blood lymphocytes, particularly of T-cell subsets (null and T helper) and natural killer cells (NK), upon exposure to gamma irradiation (60Co) in vivo. For this purpose, the change in relative numbers of NK cells and T-lymphocyte subsets, as well as in the H2AX phosphorylation rate, were evaluated as potential early markers of the lymphocytic response to irradiation in vivo. These experiments were performed on a Large White Pig model. As a result, significant but not dose-dependent changes in the proportion of lymphocyte subpopulations (NK cells, null and T helper cells) were found after exposure to ionising radiation in vivo. On the other hand, circulating NK cells showed relatively higher radioresistance capacity when compared to the T-lymphocyte subsets; however, gamma-H2AX expression showed no significant difference between the evaluated lymphocyte subsets.
- MeSH
- buňky NK účinky záření MeSH
- fenotyp MeSH
- fosforylace MeSH
- histony metabolismus MeSH
- imunofenotypizace MeSH
- ionizující záření MeSH
- lymfocyty cytologie MeSH
- poškození DNA MeSH
- prasata MeSH
- radioizotopy kobaltu farmakologie MeSH
- radiometrie metody MeSH
- T-lymfocyty - podskupiny účinky záření MeSH
- záření gama MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
