Cited by 67Effects of Radiation ExposureSpaceflight effects on biologySelenium in Biological Systems

Selenomethionine protects against adverse biological effects induced by space radiation

Kennedy, Ann R., Ware, Jeffrey H., Guan, Jun, Donahue, Jeremiah J., Biaglow, John E., Zhou, Zhaozong, Stewart, Jelena, Vazquez, Marcelo +1 more·2004·Free Radical Biology and Medicine

Abstract

Ionizing radiation-induced adverse biological effects impose serious challenges to astronauts during extended space travel. Of particular concern is the radiation from highly energetic, heavy, charged particles known as HZE particles. The objective of the present study was to characterize HZE particle radiation-induced adverse biological effects and evaluate the effect of D-selenomethionine (SeM) on the HZE particle radiation-induced adverse biological effects. The results showed that HZE particle radiation can increase oxidative stress, cytotoxicity, and cell transformation in vitro, and decrease the total antioxidant status in irradiated Sprague-Dawley rats. These adverse biological effects were all preventable by treatment with SeM, suggesting that SeM is potentially useful as a countermeasure against space radiation-induced adverse effects. Treatment with SeM was shown to enhance ATR and CHK2 gene expression in cultured human thyroid epithelial cells. As ionizing radiation is known to result in DNA damage and both ATR and CHK2 gene products are involved in DNA damage, it is possible that SeM may prevent HZE particle radiation-induced adverse biological effects by enhancing the DNA repair machinery in irradiated cells.

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Crossref · 10.1016/j.freeradbiomed.2003.10.010

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Authors
Kennedy, A. R., Ware, J. H., Guan, J., Donahue, J. J., Biaglow, J. E., Zhou, Z., Stewart, J., Vazquez, M., & Wan, X. S.
Affiliations
  • University of Pennsylvania (US)
  • Brookhaven National Laboratory (US)
Corresponding author
Kennedy, Ann R.
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2004-01
Volume
36
Issue
2
Pages
259-266
ISSN
0891-5849 (ISSN-L)
OpenAlex
W1995370359
Cited by
67
References
37
Citations by year
2022: 3 · 2021: 3 · 2020: 2 · 2019: 2 · 2018: 3 · 2017: 2 · 2015: 2 · 2014: 3 · 2013: 5
FWCI
6.21
Type
journal article
Language
en
Open access
closed
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Effects of Radiation Exposure
  • Health Sciences › Medicine › Physiology › Spaceflight effects on biology
  • Health Sciences › Nursing › Nutrition and Dietetics › Selenium in Biological Systems
Keywords
selenomethionine, space radiation, HZE particles, radiation-induced oxidative stress, cytotoxicity, cell transformation, antioxidant status, ATR, Chk2, DNA damage response, DNA repair, radiation countermeasures, thyroid follicular cells, astronauts
MeSH terms
Aerospace Medicine, Animals, Antioxidants, Cell Line, Cell Survival, Cell Transformation, Neoplastic, Cosmic Radiation, DNA Damage, DNA Repair, Epithelial Cells, Gene Expression Regulation, Humans, RNA, Messenger, Selenomethionine, Thyroid Gland, Rats, Sprague-Dawley, Protein Serine-Threonine Kinases, Oxidative Stress, Cell Cycle Proteins, Dietary Supplements, Rats, Ataxia Telangiectasia Mutated Proteins, Checkpoint Kinase 2

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