| Autor: |
Neetha Nanoth Vellichirammal, Sahil Sethi, Sanjit Pandey, Jatinder Singh, Stephen Y. Wise, Alana D. Carpenter, Oluseyi O. Fatanmi, Chittibabu Guda, Vijay K. Singh |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Molecular Therapy: Nucleic Acids, Vol 29, Iss , Pp 584-598 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2162-2531 |
| DOI: |
10.1016/j.omtn.2022.08.006 |
| Popis: |
The focus of radiation biodosimetry has changed recently, and a paradigm shift for using molecular technologies of omic platforms in addition to cytogenetic techniques has been observed. In our study, we have used a nonhuman primate model to investigate the impact of a supralethal dose of 12 Gy radiation on alterations in the lung transcriptome. We used 6 healthy and 32 irradiated animal samples to delineate radiation-induced changes. We also used a medical countermeasure, γ-tocotrienol (GT3), to observe any changes. We demonstrate significant radiation-induced changes in the lung transcriptome for total-body irradiation (TBI) and partial-body irradiation (PBI). However, no major influence of GT3 on radiation was noted in either comparison. Several common signaling pathways, including PI3K/AKT, GADD45, and p53, were upregulated in both exposures. TBI activated DNA-damage-related pathways in the lungs, whereas PTEN signaling was activated after PBI. Our study highlights the various transcriptional profiles associated with γ- and X-ray exposures, and the associated pathways include LXR/RXR activation in TBI, whereas pulmonary wound-healing and pulmonary fibrosis signaling was repressed in PBI. Our study provides important insights into the molecular pathways associated with irradiation that can be further investigated for biomarker discovery. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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