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Xin JY, Wang J, Ding QQ, Chen W, Xu XK, Wei XT, Lv YH, Wei YP, Feng Y, Zu XP. Potential role of gut microbiota and its metabolites in radiation-induced intestinal damage. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114341. [PMID: 36442401 DOI: 10.1016/j.ecoenv.2022.114341] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/13/2022] [Accepted: 11/23/2022] [Indexed: 06/16/2023]
Abstract
Radiation-induced intestinal damage (RIID) is a serious disease with limited effective treatment. Nuclear explosion, nuclear release, nuclear application and especially radiation therapy are all highly likely to cause radioactive intestinal damage. The intestinal microecology is an organic whole with a symbiotic relationship formed by the interaction between a relatively stable microbial community living in the intestinal tract and the host. Imbalance and disorders of intestinal microecology are related to the occurrence and development of multiple systemic diseases, especially intestinal diseases. Increasing evidence indicates that the gut microbiota and its metabolites play an important role in the pathogenesis and prevention of RIID. Radiation leads to gut microbiota imbalance, including a decrease in the number of beneficial bacteria and an increase in the number of harmful bacteria that cause RIID. In this review, we describe the pathological mechanisms of RIID, the changes in intestinal microbiota, the metabolites induced by radiation, and their mechanism in RIID. Finally, the mechanisms of various methods for regulating the microbiota in the treatment of RIID are summarized.
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Affiliation(s)
- Jia-Yun Xin
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jie Wang
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Qian-Qian Ding
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; School of Pharmacy, Anhui University of Traditional Chinese Medicine, Hefei 230012, China
| | - Wei Chen
- School of Pharmacy, Naval Medical University, Shanghai 200433, China
| | - Xi-Ke Xu
- School of Pharmacy, Naval Medical University, Shanghai 200433, China
| | - Xin-Tong Wei
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yan-Hui Lv
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yan-Ping Wei
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yu Feng
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Xian-Peng Zu
- School of Pharmacy, Naval Medical University, Shanghai 200433, China.
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Cao X, Weil MM, Wu JC. Clinical Trial in a Dish for Space Radiation Countermeasure Discovery. LIFE SCIENCES IN SPACE RESEARCH 2022; 35:140-149. [PMID: 36336359 PMCID: PMC10947779 DOI: 10.1016/j.lssr.2022.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/30/2022] [Accepted: 05/25/2022] [Indexed: 06/16/2023]
Abstract
NASA aims to return humans to the moon within the next five years and to land humans on Mars in a few decades. Space radiation exposure represents a major challenge to astronauts' health during long-duration missions, as it is linked to increased risks of cancer, cardiovascular dysfunctions, central nervous system (CNS) impairment, and other negative outcomes. Characterization of radiation health effects and developing corresponding countermeasures are high priorities for the preparation of long duration space travel. Due to limitations of animal and cell models, the development of novel physiologically relevant radiation models is needed to better predict these individual risks and bridge gaps between preclinical testing and clinical trials in drug development. "Clinical Trial in a Dish" (CTiD) is now possible with the use of human induced pluripotent stem cells (hiPSCs), offering a powerful tool for drug safety or efficacy testing using patient-specific cell models. Here we review the development and applications of CTiD for space radiation biology and countermeasure studies, focusing on progress made in the past decade.
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Affiliation(s)
- Xu Cao
- Stanford Cardiovascular Institute, Stanford University School of Medicine, CA 94305, USA; Department of Medicine, Division of Cardiology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Michael M Weil
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA
| | - Joseph C Wu
- Stanford Cardiovascular Institute, Stanford University School of Medicine, CA 94305, USA; Department of Medicine, Division of Cardiology, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Radiology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
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Yang JY, Liu MJ, Lv L, Guo JR, He KY, Zhang H, Wang KK, Cui CY, Yan BZ, Du DD, Wang JH, Ding Q, Liu GL, Xu ZX, Jian YP. Metformin alleviates irradiation-induced intestinal injury by activation of FXR in intestinal epithelia. Front Microbiol 2022; 13:932294. [PMID: 36312920 PMCID: PMC9608595 DOI: 10.3389/fmicb.2022.932294] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/21/2022] [Indexed: 11/30/2022] Open
Abstract
Abdominal irradiation (IR) destroys the intestinal mucosal barrier, leading to severe intestinal infection. There is an urgent need to find safe and effective treatments to reduce IR-induced intestinal injury. In this study, we reported that metformin protected mice from abdominal IR-induced intestinal injury by improving the composition and diversity of intestinal flora. The elimination of intestinal microbiota (Abx) abrogated the protective effects of metformin on irradiated mice. We further characterized that treatment of metformin increased the murine intestinal abundance of Lactobacillus, which mediated the radioprotective effect. The administration of Lactobacillus or fecal microbiota transplantation (FMT) into Abx mice considerably lessened IR-induced intestinal damage and restored the radioprotective function of metformin in Abx mice. In addition, applying the murine intestinal organoid model, we demonstrated that IR inhibited the formation of intestinal organoids, and metformin alone bore no protective effect on organoids after IR. However, a combination of metformin and Lactobacillus or Lactobacillus alone displayed a strong radioprotection on the organoid formation. We demonstrated that metformin/Lactobacillus activated the farnesoid X receptor (FXR) signaling in intestinal epithelial cells and hence upregulated tight junction proteins and mucins in intestinal epithelia, increased the number of goblet cells, and augmented the mucus layer thickness to maintain the integrity of intestinal epithelial barrier, which eventually contributed to reduced radiation intestinal injury. In addition, we found that Lactobacillus abundance was significantly increased in the intestine of patients receiving metformin while undergoing abdominal radiotherapy and the abundance was negatively correlated with the diarrhea duration of patients. In conclusion, our results demonstrate that metformin possesses a protective effect on IR-induced intestinal injury by upregulating the abundance of Lactobacillus in the intestine.
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Affiliation(s)
- Jing-Yu Yang
- School of Life Sciences, Henan University, Kaifeng, China
| | - Meng-Jie Liu
- School of Life Sciences, Henan University, Kaifeng, China
| | - Lin Lv
- Department of Medical Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Jin-Rong Guo
- School of Life Sciences, Henan University, Kaifeng, China
| | - Kai-Yue He
- School of Life Sciences, Henan University, Kaifeng, China
| | - Hong Zhang
- School of Life Sciences, Henan University, Kaifeng, China
| | - Ke-Ke Wang
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Cui-Yun Cui
- Department of Blood Transfusion, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Bei-Zhan Yan
- Department of Blood Transfusion, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Dan-Dan Du
- Department of Internal Medicine, Ningjin County People's Hospital, Dezhou, China
| | - Jin-Hua Wang
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Qiang Ding
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Guo-Long Liu
- Department of Medical Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- *Correspondence: Guo-Long Liu
| | - Zhi-Xiang Xu
- School of Life Sciences, Henan University, Kaifeng, China
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Zhi-Xiang Xu
| | - Yong-Ping Jian
- School of Life Sciences, Henan University, Kaifeng, China
- Yong-Ping Jian
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Fan J, Lin B, Fan M, Niu T, Gao F, Tan B, Du X. Research progress on the mechanism of radiation enteritis. Front Oncol 2022; 12:888962. [PMID: 36132154 PMCID: PMC9483210 DOI: 10.3389/fonc.2022.888962] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 08/10/2022] [Indexed: 12/12/2022] Open
Abstract
Radiation enteritis (Re) is one of the most common complications of radiation therapy for abdominal tumors. The efficacy of cancer treatment by radiation is often limited by the side effects of Re. Re can be acute or chronic. Treatment of acute Re is essentially symptomatic. However, chronic Re usually requires surgical procedures. The underlying mechanisms of Re are complex and have not yet been elucidated. The purpose of this review is to provide an overview of the pathogenesis of Re. We reviewed the role of intestinal epithelial cells, intestinal stem cells (ISCs), vascular endothelial cells (ECs), intestinal microflora, and other mediators of Re, noting that a better understanding of the pathogenesis of Re may lead to better treatment modalities.
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Affiliation(s)
- Jinjia Fan
- Departmant of Oncology, National Health Commission Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology, Mianyang, China
- Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nan Chong, China
| | - Binwei Lin
- Departmant of Oncology, National Health Commission Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology, Mianyang, China
| | - Mi Fan
- Departmant of Oncology, National Health Commission Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology, Mianyang, China
- Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nan Chong, China
| | - Tintin Niu
- Departmant of Oncology, National Health Commission Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology, Mianyang, China
- Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nan Chong, China
| | - Feng Gao
- Departmant of Oncology, National Health Commission Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology, Mianyang, China
| | - Bangxian Tan
- Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nan Chong, China
| | - Xiaobo Du
- Departmant of Oncology, National Health Commission Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology, Mianyang, China
- Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nan Chong, China
- *Correspondence: Xiaobo Du,
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Yan JN, Zhang HY, Li JR, Chen Y, Jiang YC, Shen JB, Ke KF, Gu XS. Schwann cells differentiated from skin-derived precursors provide neuroprotection via autophagy inhibition in a cellular model of Parkinson's disease. Neural Regen Res 2021; 17:1357-1363. [PMID: 34782582 PMCID: PMC8643066 DOI: 10.4103/1673-5374.327353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Autophagy has been shown to play an important role in Parkinson’s disease. We hypothesized that skin-derived precursor cells exhibit neuroprotective effects in Parkinson’s disease through affecting autophagy. In this study, 6-hydroxydopamine-damaged SH-SY5Y cells were pretreated with a culture medium containing skin-derived precursors differentiated into Schwann cells (SKP-SCs). The results showed that the SKP-SC culture medium remarkably enhanced the activity of SH-SY5Y cells damaged by 6-hydroxydopamine, reduced excessive autophagy, increased tyrosine hydroxylase expression, reduced α-synuclein expression, reduced the autophagosome number, and activated the PI3K/AKT/mTOR pathway. Autophagy activator rapamycin inhibited the effects of SKP-SCs, and autophagy inhibitor 3-methyladenine had the opposite effect. These findings confirm that SKP-SCs modulate the PI3K/AKT/mTOR pathway to inhibit autophagy, thereby exhibiting a neuroprotective effect in a cellular model of Parkinson’s disease. This study was approved by the Animal Ethics Committee of Laboratory Animal Center of Nantong University (approval No. S20181009-205) on October 9, 2018.
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Affiliation(s)
- Jia-Nan Yan
- Department of Neurology, Affiliated Hospital of Nantong University; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Hai-Ying Zhang
- Department of Neurology, Affiliated Hospital of Nantong University; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Jun-Rui Li
- Department of Clinical Medicine, The First Clinical Medical College of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Ying Chen
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong; Department of Neurology and Suzhou Clinical Research Center of Neurological Disease, The Second Afflicted Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Yong-Cheng Jiang
- Department of Neurology, Affiliated Hospital of Nantong University; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Jia-Bing Shen
- Department of Neurology, Affiliated Hospital of Nantong University; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Kai-Fu Ke
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Xiao-Su Gu
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
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