Gut metabolite Urolithin A mitigates ionizing radiation‐induced intestinal damage

Ionizing radiation (IR)‐induced intestinal damage is the major and common injury of patients receiving radiotherapy. Urolithin A (UroA) is a metabolite of the intestinal flora of ellagitannin, a compound found in fruits and nuts such as pomegranates, strawberries and walnuts. UroA shows the immunomo...

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Veröffentlicht in:Journal of cellular and molecular medicine 2021-11, Vol.25 (21), p.10306-10312
Hauptverfasser: Zhang, Yuanyang, Dong, Yinping, Lu, Ping, Wang, Xinyue, Li, Wenxuan, Dong, Hui, Fan, Saijun, Li, Deguan
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container_issue 21
container_start_page 10306
container_title Journal of cellular and molecular medicine
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creator Zhang, Yuanyang
Dong, Yinping
Lu, Ping
Wang, Xinyue
Li, Wenxuan
Dong, Hui
Fan, Saijun
Li, Deguan
description Ionizing radiation (IR)‐induced intestinal damage is the major and common injury of patients receiving radiotherapy. Urolithin A (UroA) is a metabolite of the intestinal flora of ellagitannin, a compound found in fruits and nuts such as pomegranates, strawberries and walnuts. UroA shows the immunomodulatory and anti‐inflammatory capacity in various metabolic diseases. To evaluate the radioprotective effects, UroA(0.4, 2 and 10 mg/kg) were intraperitoneally injected to C57BL/6 male mice 48, 24, 1 h prior to and 24 h after 9.0Gy TBI. The results showed that UroA markedly upregulated the survival of irradiated mice, especially at concentration of 2 mg/kg. UroA improved the intestine morphology architecture and the regeneration ability of enterocytes in irradiated mice. Then, UroA significantly decreased the apoptosis of enterocytes induced by radiation. Additionally, 16S rRNA sequencing analysis showed the effect of UroA is associated with the recovery of the IR‐induced intestinal microbacteria profile changes in mice. Therefore, our results determinated UroA could be developed as a potential candidate for radiomitigators in radiotherapy and accidental nuclear exposure. And the beneficial functions of UroA might be associated with the inhibition of p53‐mediated apoptosis and remodelling of the gut microbes.
doi_str_mv 10.1111/jcmm.16951
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Urolithin A (UroA) is a metabolite of the intestinal flora of ellagitannin, a compound found in fruits and nuts such as pomegranates, strawberries and walnuts. UroA shows the immunomodulatory and anti‐inflammatory capacity in various metabolic diseases. To evaluate the radioprotective effects, UroA(0.4, 2 and 10 mg/kg) were intraperitoneally injected to C57BL/6 male mice 48, 24, 1 h prior to and 24 h after 9.0Gy TBI. The results showed that UroA markedly upregulated the survival of irradiated mice, especially at concentration of 2 mg/kg. UroA improved the intestine morphology architecture and the regeneration ability of enterocytes in irradiated mice. Then, UroA significantly decreased the apoptosis of enterocytes induced by radiation. Additionally, 16S rRNA sequencing analysis showed the effect of UroA is associated with the recovery of the IR‐induced intestinal microbacteria profile changes in mice. Therefore, our results determinated UroA could be developed as a potential candidate for radiomitigators in radiotherapy and accidental nuclear exposure. And the beneficial functions of UroA might be associated with the inhibition of p53‐mediated apoptosis and remodelling of the gut microbes.</description><identifier>ISSN: 1582-1838</identifier><identifier>EISSN: 1582-4934</identifier><identifier>DOI: 10.1111/jcmm.16951</identifier><identifier>PMID: 34595829</identifier><language>eng</language><publisher>England: John Wiley &amp; Sons, Inc</publisher><subject>Animals ; Antioxidants ; Apoptosis ; Apoptosis - drug effects ; Apoptosis - radiation effects ; Cancer ; Confidence intervals ; Coumarins - metabolism ; Coumarins - pharmacology ; Digestive system ; DNA Damage - drug effects ; DNA Damage - radiation effects ; Enterocytes ; Gastrointestinal Microbiome - drug effects ; Gastrointestinal Microbiome - radiation effects ; Gastrointestinal tract ; Gastrointestinal Tract - drug effects ; Gastrointestinal Tract - pathology ; Gastrointestinal Tract - radiation effects ; gut microbes ; Immunomodulation ; Inflammation ; Intestinal microflora ; Intestinal Mucosa - drug effects ; Intestinal Mucosa - pathology ; Intestinal Mucosa - radiation effects ; Intestine ; Ionizing radiation ; Melatonin ; Metabolic disorders ; Metabolites ; Mice ; Microbiota ; Morphology ; Radiation Dosage ; radiation enteritis ; Radiation therapy ; Radiation, Ionizing ; Radiation-Protective Agents - pharmacology ; rRNA 16S ; Sequence analysis ; Short Communication ; Short Communications ; Small intestine ; UroA</subject><ispartof>Journal of cellular and molecular medicine, 2021-11, Vol.25 (21), p.10306-10312</ispartof><rights>2021 The Authors. published by Foundation for Cellular and Molecular Medicine and John Wiley &amp; Sons Ltd.</rights><rights>2021 The Authors. 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subjects Animals
Antioxidants
Apoptosis
Apoptosis - drug effects
Apoptosis - radiation effects
Cancer
Confidence intervals
Coumarins - metabolism
Coumarins - pharmacology
Digestive system
DNA Damage - drug effects
DNA Damage - radiation effects
Enterocytes
Gastrointestinal Microbiome - drug effects
Gastrointestinal Microbiome - radiation effects
Gastrointestinal tract
Gastrointestinal Tract - drug effects
Gastrointestinal Tract - pathology
Gastrointestinal Tract - radiation effects
gut microbes
Immunomodulation
Inflammation
Intestinal microflora
Intestinal Mucosa - drug effects
Intestinal Mucosa - pathology
Intestinal Mucosa - radiation effects
Intestine
Ionizing radiation
Melatonin
Metabolic disorders
Metabolites
Mice
Microbiota
Morphology
Radiation Dosage
radiation enteritis
Radiation therapy
Radiation, Ionizing
Radiation-Protective Agents - pharmacology
rRNA 16S
Sequence analysis
Short Communication
Short Communications
Small intestine
UroA
title Gut metabolite Urolithin A mitigates ionizing radiation‐induced intestinal damage
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