ArticleAntioxidants (Basel, Switzerland)2019
Gamma-Tocotrienol Protects the Intestine from Radiation Potentially by Accelerating Mesenchymal Immune Cell Recovery.
Article in Antioxidants (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 16 citations in OpenAlex.
- Structural and Functional Characteristics of the Liver After Fractionated Local Electron Irradiation and Against the Background of Ascorbic Acid Administration.Journal of personalized medicine · 2026Review
- Radiomitigators: Breakthroughs in Post-Radiation Recovery.Antioxidants (Basel, Switzerland) · 2026Review
- Geranylgeranyl Transferase Inhibitors Mitigate Intestinal Radiation Toxicity.International journal of radiation oncology, biology, physics · 2026Article
- Tocotrienols Provide Radioprotection to Multiple Organ Systems through Complementary Mechanisms of Antioxidant and Signaling Effects.Antioxidants (Basel, Switzerland) · 2023Review
- Development of radiation countermeasure agents for acute radiation syndromes.Animal models and experimental medicine · 2023Review
- Vitamins and Radioprotective Effect: A Review.Antioxidants (Basel, Switzerland) · 2023Review
- Effects of Gamma-Tocotrienol on Partial-Body Irradiation-Induced Intestinal Injury in a Nonhuman Primate Model.Antioxidants (Basel, Switzerland) · 2022Article
- Nuclear and Radiological Emergencies: Biological Effects, Countermeasures and Biodosimetry.Antioxidants (Basel, Switzerland) · 2022Review
- JAC4 Protects from X-ray Radiation-Induced Intestinal Injury by JWA-Mediated Anti-Oxidation/Inflammation Signaling.Antioxidants (Basel, Switzerland) · 2022Article
- Effects of Gamma-Tocotrienol on Intestinal Injury in a GI-Specific Acute Radiation Syndrome Model in Nonhuman Primate.International journal of molecular sciences · 2022Article
- Roles of vitamins in stem cells.Cellular and molecular life sciences : CMLS · 2020Review
Corrections and comments
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Authors and funding
12 authors at 3 institutions in 1 country.
Funding
Abstract
Natural antioxidant gamma-tocotrienol (GT3), a vitamin E family member, provides intestinal radiation protection. We seek to understand whether this protection is mediated via mucosal epithelial stem cells or sub-mucosal mesenchymal immune cells. Vehicle- or GT3-treated male CD2F1 mice were exposed to total body irradiation (TBI). Cell death was determined by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. Villus height and crypt depth were measured with computer-assisted software in tissue sections. Functional activity was determined with an intestinal permeability assay. Immune cell recovery was measured with immunohistochemistry and Western blot, and the regeneration of intestinal crypts was assessed with ex vivo organoid culture. A single dose of GT3 (200 mg/kg body weight (bwt)) administered 24 h before TBI suppressed cell death, prevented a decrease in villus height, increased crypt depth, attenuated intestinal permeability, and upregulated occludin level in the intestine compared to the vehicle treated group. GT3 accelerated mesenchymal immune cell recovery after irradiation, but it did not promote ex vivo organoid formation and failed to enhance the expression of stem cell markers. Finally, GT3 significantly upregulated protein kinase B or AKT phosphorylation after TBI. Pretreatment with GT3 attenuates TBI-induced structural and functional damage to the intestine, potentially by facilitating intestinal immune cell recovery. Thus, GT3 could be used as an intestinal radioprotector.
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Registered trials
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