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Zhang R, Sun J, Xie Y, Zhu W, Tao M, Chen Y, Xie W, Bade R, Jiang S, Liu X, Shao G, Pan W, Zhou C, Jia X. Mutant kri1l causes abnormal retinal development via cell cycle arrest and apoptosis induction. Cell Death Discov 2024; 10:251. [PMID: 38789412 PMCID: PMC11126728 DOI: 10.1038/s41420-024-02022-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 05/04/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Damage to the ribosome or an imbalance in protein biosynthesis can lead to some human diseases, such as diabetic retinopathy (DR) and other eye diseases. Here, we reported that the kri1l gene was responsible for retinal development. The kri1l gene encodes an essential component of the rRNA small subunit processome. The retinal structure was disrupted in kri1l mutants, which resulted in small eyes. The boundaries of each layer of cells in the retina were blurred, and each layer of cells was narrowed and decreased. The photoreceptor cells and Müller glia cells almost disappeared in kri1l mutants. The lack of photoreceptor cells caused a fear of light response. The development of the retina started without abnormalities, and the abnormalities began two days after fertilization. In the kri1l mutant, retinal cell differentiation was defective, resulting in the disappearance of cone cells and Müller cells. The proliferation of retinal cells was increased, while apoptosis was also enhanced in kri1l mutants. γ-H2AX upregulation indicated the accumulation of DNA damage, which resulted in cell cycle arrest and apoptosis. The kri1l mutation reduced the expression of some opsin genes and key retinal genes, which are also essential for retinal development.
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Affiliation(s)
- Rong Zhang
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Fourth Hospital of Baotou, Inner Mongolia, Baotou, China
| | - Jiajun Sun
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Yabin Xie
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wei Zhu
- School of Pharmacy, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Meitong Tao
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Yu Chen
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Wei Xie
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Rengui Bade
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Shuyuan Jiang
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- School of Pharmacy, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Xiaolei Liu
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- School of Pharmacy, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Guo Shao
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- Center for Translational Medicine and Department of Laboratory Medicine, The Third People's Hospital of Longgang District, Shenzhen, China
| | - Weijun Pan
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Chengjiang Zhou
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China.
| | - Xiaoe Jia
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China.
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China.
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China.
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Liu G, Li J, Pang B, Li Y, Xu F, Liao N, Shao D, Jiang C, Shi J. Potential role of selenium in alleviating obesity-related iron dyshomeostasis. Crit Rev Food Sci Nutr 2022; 63:10032-10046. [PMID: 35574661 DOI: 10.1080/10408398.2022.2074961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Obesity is a serious health problem in modern life and increases the risk of many comorbidities including iron dyshomeostasis. In contrast to malnourished anemia, obesity-related iron dyshomeostasis is mainly caused by excessive fat accumulation, inflammation, and disordered gut microbiota. In obesity, iron dyshomeostasis also induces disorders associated with gut microbiota, neurodegenerative injury, oxidative damage, and fat accumulation in the liver. Selenium deficiency is often accompanied by obesity or iron deficiency, and selenium supplementation has been shown to alleviate obesity and overcome iron deficiency. Selenium inhibits fat accumulation and exhibits anti-inflammatory activity. It regulates gut microbiota, prevents neurodegenerative injury, alleviates oxidative damage to the body, and ameliorates hepatic fat accumulation. These effects theoretically meet the requirements for the inhibition of factors underlying obesity-related iron dyshomeostasis. Selenium supplementation may have a potential role in the alleviation of obesity-related iron dyshomeostasis. This review verifies this hypothesis in theory. All the currently reported causes and results of obesity-related iron dyshomeostasis are reviewed comprehensively, together with the effects of selenium. The challenges and strategies of selenium supplementation are also discussed. The findings demonstrate the possibility of selenium-containing drugs or functional foods in alleviating obesity-related iron dyshomeostasis.
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Affiliation(s)
- Guanwen Liu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Junjun Li
- College of Enology, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Bing Pang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Yinghui Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Fengqin Xu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Ning Liao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Dongyan Shao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Chunmei Jiang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Junling Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
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