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Liu X, Yu Y, Garcia LA, Au ML, Tran M, Zhang J, Lou A, Liu Y, Wu H. A grape-supplemented diet prevented ultraviolet (UV) radiation-induced cataract by regulating Nrf2 and XIAP pathways. J Nutr Biochem 2024; 129:109636. [PMID: 38561079 PMCID: PMC11107911 DOI: 10.1016/j.jnutbio.2024.109636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024]
Abstract
The purpose of this study is to investigate if grape consumption, in the form of grape powder (GP), could protect against ultraviolet (UV)-induced cataract. Mice were fed with the regular diet, sugar placebo diet, or a grape diet (regular diet supplemented with 5%, 10%, and 15% GP) for 3 months. The mice were then exposed to UV radiation to induce cataract. The results showed that the GP diet dose-dependently inhibited UV-induced cataract and preserved glutathione pools. Interestingly, UV-induced Nrf2 activation was abolished in the groups on the GP diet, suggesting GP consumption may improve redox homeostasis in the lens, making Nrf2 activation unnecessary. For molecular target prediction, a total of 471 proteins regulated by GP were identified using Agilent Literature Search (ALS) software. Among these targets, the X-linked inhibitor of apoptosis (XIAP) was correlated with all of the main active ingredients of GP, including resveratrol, catechin, quercetin, and anthocyanins. Our data confirmed that GP prevented UV-induced suppression of XIAP, indicating that XIAP might be one of the critical molecular targets of GP. In conclusion, this study demonstrated that GP protected the lens from UV-induced cataract development in mice. The protective effects of GP may be attributed to its ability to improve redox homeostasis and activate the XIAP-mediated antiapoptotic pathway.
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Affiliation(s)
- Xiaobin Liu
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Yu Yu
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Luís Aguilera Garcia
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - My-Lien Au
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Myhoa Tran
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Jinmin Zhang
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Alexander Lou
- The Village School, Houston, Texas, USA; Loyola University Chicago, Chicago, Illinois, USA
| | - Yang Liu
- Department of Pharmacology & Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA; North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Hongli Wu
- Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, USA; North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, USA.
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Galichanin K, Yu Z. Expression of active caspase 3 in the rat lens after in vivo exposure to subthreshold dose of UVR-B. BMC Ophthalmol 2024; 24:29. [PMID: 38254051 PMCID: PMC10802094 DOI: 10.1186/s12886-024-03315-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 01/17/2024] [Indexed: 01/24/2024] Open
Abstract
PURPOSES The aim of this study is to investigate the time evolution of active caspase 3 within first 120 h in the rat lens after in vivo exposure to subthreshold dose of UVR-B. METHODS Twenty three six-week-old female albino Sprague-Dawley rats were exposed to subthreshold dose (1 kJ/m2) of UVR-B unilaterally and sacrificed at 24, 41, 70 and 120 h after exposure. Lenses were enucleated and active caspase 3 was detected by Western Blot. The time evolution of active caspase 3 was then plotted as a function of relative mean difference in active caspase 3 between exposed and nonexposed lenses. RESULTS There is expression of active caspase 3 in both exposed and nonexposed lenses but there is no difference in relative mean difference in active caspase 3 between exposed and nonexposed lenses in all four postexposure groups. CONCLUSIONS Exposure to subthreshold dose of UVR-B does not induce apoptosis in the rat lens in vivo within first 120 h though there is a non-significant increase of active caspase 3 at 120 h. Increase in sample size might reduce the variation level in expression of active caspase 3 in the rat lenses.
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Affiliation(s)
- Konstantin Galichanin
- Gullstrand lab, Section of Ophthalmology, Department of Surgical sciences, Uppsala University, Uppsala, SE-751 85, Sweden.
| | - Zhaohua Yu
- Gullstrand lab, Section of Ophthalmology, Department of Surgical sciences, Uppsala University, Uppsala, SE-751 85, Sweden
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Li X, Qu Y, Yang Q, Li R, Diao Y, Wang J, Wu L, Zhang C, Cui S, Qin L, Zhuo D, Wang H, Wang L, Huang Y. Cellular Localization of FOXO3 Determines Its Role in Cataractogenesis. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:1845-1862. [PMID: 37517685 DOI: 10.1016/j.ajpath.2023.06.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 06/17/2023] [Accepted: 06/21/2023] [Indexed: 08/01/2023]
Abstract
The transcription factor forkhead box protein (FOX)-O3 is a core regulator of cellular homeostasis, stress response, and longevity. The cellular localization of FOXO3 is closely related to its function. Herein, the role of FOXO3 in cataract formation was explored. FOXO3 showed nuclear translocation in lens epithelial cells (LECs) arranged in a single layer on lens capsule tissues from both human cataract and N-methyl-N-nitrosourea (MNU)-induced rat cataract, also in MNU-injured human (H)-LEC lines. FOXO3 knockdown inhibited the MNU-induced increase in expression of genes related to cell cycle arrest (GADD45A and CCNG2) and apoptosis (BAK and TP53). H2 is highly effective in reducing oxidative impairments in nuclear DNA and mitochondria. When H2 was applied to MNU-injured HLECs, FOXO3 underwent cleavage by MAPK1 and translocated into mitochondria, thereby increasing the transcription of oxidative phosphorylation-related genes (MTCO1, MTCO2, MTND1, and MTND6) in HLECs. Furthermore, H2 mediated the translocation of FOXO3 from the nucleus to the mitochondria within the LECs of cataract capsule tissues of rats exposed to MNU. This intervention ameliorated MNU-induced cataracts in the rat model. In conclusion, there was a correlation between the localization of FOXO3 and its function in cataract formation. It was also determined that H2 protects HLECs from injury by leading FOXO3 mitochondrial translocation via MAPK1 activation. Mitochondrial FOXO3 can increase mtDNA transcription and stabilize mitochondrial function in HLECs.
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Affiliation(s)
- Xiaoqi Li
- Medical School of Chinese PLA, Beijing, China; State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Yingxin Qu
- Department of Ophthalmology, Chinese Aerospace 731 Hospital, Beijing, China
| | - Qinghua Yang
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Runpu Li
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yumei Diao
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Junyi Wang
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Lingling Wu
- State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Chuyue Zhang
- State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Shaoyuan Cui
- State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Limin Qin
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Deyi Zhuo
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Huiyi Wang
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Liqiang Wang
- State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China; Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China.
| | - Yifei Huang
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China.
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4
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Zhao W, Chen S, Lu B, Wu D, Gu Y, Hao S, Sheng F, Xu Y, Han Y, Chen R, Zhou L, Fu Q, Yao K. Upregulation of EphA2 is associated with apoptosis in response to H 2O 2 and UV radiation-induced cataracts. Arch Biochem Biophys 2023; 747:109756. [PMID: 37714253 DOI: 10.1016/j.abb.2023.109756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 09/07/2023] [Accepted: 09/13/2023] [Indexed: 09/17/2023]
Abstract
In this article, we examine the role of erythropoietin-producing hepatocellular receptor A2 (EphA2) in the apoptosis of lens epithelial cells (LECs) in H2O2 and UV radiation-induced cataracts. We treated SRA01/04 cells with H2O2 or ultraviolet (UV) radiation to create a cataract cell model. We constructed a cataract lens model by exposing mice to UV radiation. We used CCK8 assays, Annexin V-FITC analysis, and immunohistochemical staining to explore proliferation and apoptosis of the cataract model. Thereafter, we used quantitative real-time PCR (qPCR) analysis, Western blot assays, and immunofluorescence to determine gene and protein expression levels. We also employed Crispr/Cas9 gene editing to create an EphA2 knockout in SRA01/04 cells. Results: H2O2 or UV radiation induced SRA01/04 cells showed EphA2 gene upregulation. CCK8 and apoptosis assays showed that EphA2 over-expression (OE) reduced epithelial cell apoptosis, but knockout of EphA2 induced it in response to H2O2 and UV radiation, respectively. Mutation of the EphA2 protein kinase domain (c.2003G > A, p. G668D) had a limited effect on cell apoptosis. In vivo, the EphA2 protein level increased in the lenses of UV-treated mice. Our results showed that EphA2 was upregulated in SRA01/04 cells in response to H2O2 and UV radiation. Mutation of the EphA2 protein kinase domain (c.2003G > A, p. G668D) had a limited effect on H2O2 and UV radiation-induced cell apoptosis. We confirmed this change with an experiment on UV-treated mice. The present study established a novel association between EphA2 and LEC apoptosis.
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Affiliation(s)
- Wei Zhao
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Shuying Chen
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Bing Lu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Di Wu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Yuzhou Gu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Shengjie Hao
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Feiyin Sheng
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Yili Xu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Yu Han
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Rongrong Chen
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China
| | - Lei Zhou
- School of Optometry, Department of Applied Biology and Chemical Technology, Research Centre for SHARP Vision (RCSV), The Hong Kong Polytechnic University, Hong Kong, China; Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Hong Kong, China
| | - Qiuli Fu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China.
| | - Ke Yao
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, China.
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You Y, Bai C, Wang W, Zhan T, Hu X, Hao F, Xia M, Liu Y, Ma T, Liu Y, Zheng C, Pu T, Zhang Y, Lu Y, Ding N, Li J, Yin Y, Chen Y, Wang L, Zhou J, Niu L, Xiu Y, Lu Y, Jia T, Liu X, Zhang C. Comparative proteomics in captive giant pandas to identify proteins involved in age-related cataract formation. Sci Rep 2023; 13:12722. [PMID: 37543644 PMCID: PMC10404263 DOI: 10.1038/s41598-023-40003-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 08/03/2023] [Indexed: 08/07/2023] Open
Abstract
Approximately 20% of aged captive giant pandas (Ailuropoda melanoleuca) have cataracts that impair their quality of life. To identify potential biomarkers of cataract formation, we carried out a quantitative proteomics analysis of 10 giant pandas to find proteins differing in abundance between healthy and cataract-bearing animals. We identified almost 150 proteins exceeding our threshold for differential abundance, most of which were associated with GO categories related to extracellular localization. The most significant differential abundance was associated with components of the proteasome and other proteins with a role in proteolysis or its regulation, most of which were depleted in pandas with cataracts. Other modulated proteins included components of the extracellular matrix or cytoskeleton, as well as associated signaling proteins and regulators, but we did not find any differentially expressed transcription factors. These results indicate that the formation of cataracts involves a complex post-transcriptional network of signaling inside and outside lens cells to drive stress responses as a means to address the accumulation of protein aggregates triggered by oxidative damage. The modulated proteins also indicate that it should be possible to predict the onset of cataracts in captive pandas by taking blood samples and testing them for the presence or absence of specific protein markers.
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Affiliation(s)
- Yuyan You
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China.
| | - Chao Bai
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | - Wei Wang
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | - Tongtong Zhan
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | - Xin Hu
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | | | | | - Yan Liu
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | - Tao Ma
- Beijing Zoo, Beijing, China
| | | | | | | | | | | | | | | | | | - Yucun Chen
- Strait (Fuzhou) Giant Panda Research and Exchange Centers, Fuzhou, China
| | | | | | | | - Yunfang Xiu
- Strait (Fuzhou) Giant Panda Research and Exchange Centers, Fuzhou, China
| | - Yan Lu
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China.
| | | | | | - Chenglin Zhang
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China.
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6
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Galichanin K. Estimation of the Variance Components in TP53 mRNA Expression in the Rat Lens after in vivo Exposure to Ultraviolet Radiation B. Biomed Hub 2023; 8:42-45. [PMID: 37101567 PMCID: PMC10123364 DOI: 10.1159/000530042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 02/22/2023] [Indexed: 04/28/2023] Open
Abstract
Introduction The aim of this study was to investigate the variance components in TP53 mRNA expression after in vivo exposure to double threshold dose of ultraviolet radiation B (UVR-B). Methods Twelve six-week-old female albino Sprague-Dawley rats were exposed to double threshold dose (8 kJ/m2) of UVR-B unilaterally and sacrificed at 1, 3, 8, and 24 h after exposure. Lenses were enucleated, and TP53 mRNA expression was detected by qRT-PCR. Variance components for groups, animals, and measurements were estimated with analysis of variance. Results The variance for groups is 0.15 rel.2. The variance for animals is 0.29 rel.2. The variance for measurements is 0.32 rel.2. Conclusion The variance for animals is in the same order as the variance for measurements. The reduction of the variance for measurements is needed in order to obtain the acceptable level of detection of the difference in TP53 mRNA expression and the reduction in sample size.
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Affiliation(s)
- Konstantin Galichanin
- Gullstrand Lab, Section of Ophthalmology, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
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7
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You Y, Bai C, Liu X, Lu Y, Jia T, Xia M, Yin Y, Wang W, Chen Y, Zhang C, Liu Y, Wang L, Pu T, Ma T, Liu Y, Zhou J, Niu L, Xu S, Ni Y, Hu X, Zhang Z. RNA-Seq analysis in giant pandas reveals the differential expression of multiple genes involved in cataract formation. BMC Genom Data 2021; 22:44. [PMID: 34706646 PMCID: PMC8555103 DOI: 10.1186/s12863-021-00996-x] [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] [Received: 04/28/2021] [Accepted: 09/09/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The giant panda (Ailuropoda melanoleuca) is an endangered mammalian species native to China. Fewer than 2500 giant pandas are known to exist, many of which are bred in captivity as a means to preserve and repopulate the species. Like other captive mammals, giant pandas acquire age-related cataracts, reducing their quality of life. Recent comparative genome-wide methylation analysis revealed 110 differentially methylated genes associated with cataract formation including six also associated with the formation of age-related cataracts in humans. RESULTS To investigate the pathological pathway in greater detail, here we used RNA-Seq analysis to investigate the differential expression profiles of genes in three giant pandas with cataracts and three healthy controls. We identified more than 700 differentially expressed genes, 29 of which were selected for further analysis based on their low q-value. We found that many of the genes encoded regulatory and signaling proteins associated with the control of cell growth, migration, differentiation and apoptosis, supporting previous research indicating a key role for apoptosis in cataract formation. CONCLUSION The identification of genes involved in the formation of age-related cataracts could facilitate the development of predictive markers, preventative measures and even new therapies to improve the life of captive animals.
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Affiliation(s)
- Yuyan You
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China.
| | - Chao Bai
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | | | - Yan Lu
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | | | | | | | - Wei Wang
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | - Yucun Chen
- Strait (Fuzhou) Giant Panda Research and Exchange Centers, Fuzhou, China
| | - Chenglin Zhang
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | - Yan Liu
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | | | | | - Tao Ma
- Beijing Zoo, Beijing, China
| | | | | | | | - Suhui Xu
- Strait (Fuzhou) Giant Panda Research and Exchange Centers, Fuzhou, China
| | | | - Xin Hu
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
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8
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Epha2 genotype influences ultraviolet radiation induced cataract in mice. Exp Eye Res 2019; 188:107806. [DOI: 10.1016/j.exer.2019.107806] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 06/07/2019] [Accepted: 09/16/2019] [Indexed: 01/25/2023]
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9
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You Y, Bai C, Liu X, Xia M, Jia T, Li X, Zhang C, Chen Y, Zhao S, Wang L, Wang W, Yin Y, Xiu Y, Niu L, Zhou J, Ma T, Du Y, Liu Y. Genome-wide analysis of methylation in giant pandas with cataract by methylation-dependent restriction-site associated DNA sequencing (MethylRAD). PLoS One 2019; 14:e0222292. [PMID: 31553743 PMCID: PMC6760787 DOI: 10.1371/journal.pone.0222292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/26/2019] [Indexed: 01/19/2023] Open
Abstract
The giant panda (Ailuropoda melanoleuca) is a native species to China. They are rare and endangered and are regarded as the 'national treasure' and 'living fossil' in China. For the time being, there are only about 2500 giant pandas in the world. Therefore, we still have to do much more efforts to protect the giant pandas. In captive wildlife, the cataract incidence of mammalian always increases with age. Currently, in China, the proportion of elderly giant pandas who suffering from cataract has reached 20%. The eye disorder thus has a strong influence on the physical health and life quality of the elderly giant pandas. To discover the genes associated with the pathogenesis of cataract in the elderly giant panda and achieve the goal of early assessment and diagnosis of cataract in giant pandas during aging, we performed whole genome methylation sequencing in 3 giant pandas with cataract and 3 healthy giant pandas using methylation-dependent restriction-site associated DNA sequencing (MethylRAD). In the present study, we obtained 3.62M reads, on average, for each sample, and identified 116 and 242 differentially methylated genes (DMGs) between the two groups under the context of CCGG and CCWGG on genome, respectively. Further KEGG and GO enrichment analyses determined a total of 110 DMGs that are involved in the biological functions associated with pathogenesis of cataract. Among them, 6 DMGs including EEA1, GARS, SLITRK4, GSTM3, CASP3, and EGLN3 have been linked with cataract in old age.
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Affiliation(s)
- Yuyan You
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
- * E-mail:
| | - Chao Bai
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | - Xuefeng Liu
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | | | - Ting Jia
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | | | - Chenglin Zhang
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | - Yucun Chen
- Strait (Fuzhou) Giant Panda Research and Exchange Centers, Fuzhou, China
| | - Sufen Zhao
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | | | - Wei Wang
- Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China
| | | | - Yunfang Xiu
- Strait (Fuzhou) Giant Panda Research and Exchange Centers, Fuzhou, China
| | | | | | - Tao Ma
- Beijing Zoo, Beijing, China
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10
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Tang W, Xiao Y, Li G, Zheng X, Yin Y, Wang L, Zhu Y. Analysis of digital gene expression profiling in the gonad of male silkworms (Bombyx mori) under fluoride stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 153:127-134. [PMID: 29425843 DOI: 10.1016/j.ecoenv.2018.01.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 01/09/2018] [Accepted: 01/11/2018] [Indexed: 06/08/2023]
Abstract
Fluorine is an essential element, but excessive fluoride can cause serious effects on the respiratory, digestive, and reproductive systems. Fluorine has been suggested to cause reproductive toxicity in vertebrates, but its potential to reproductively affect invertebrates remains unknown. In the present study, the lepidopteran model insect Bombyx mori was used to assess the reproductive toxicity of NaF. The underlying molecular mechanisms were explored by RNA sequencing, and we investigated the testes transcriptomic profile of B. mori treated with NaF via a digital gene expression (DGE) analysis. Among 520 candidate genes, 297 and 223 were identified as significantly upregulated or downregulated, respectively. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were carried out on all genes to determine their biological functions and associated processes. The results indicated that numerous differentially expressed genes are involved in the stress response, detoxification, antibacterial, transport, oxidative phosphorylation, and ribosome. The reliability of the data was confirmed by a quantitative real-time polymerase chain reaction (qRT-PCR) analysis. The changed Glutathione S-transferase (GST) activity and glutathione (GSH) content in the NaF-treated groups were increased and reduced respectively. This study reveals that using RNA-sequencing for the transcriptome profiling of B. mori testes can lead to better comprehension of the male reproductive toxicity effects of NaF. Furthermore, we expect that these results will aid future molecular studies on the reproductive toxicity of NaF in other species.
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Affiliation(s)
- Wenchao Tang
- School of Biotechnology, Southwest University, Chongqing 400716, China
| | - Yuanyuan Xiao
- School of Life Sciences, Southwest University, Chongqing 400716, China
| | - Guannan Li
- School of Biotechnology, Southwest University, Chongqing 400716, China
| | - Xi Zheng
- School of Biotechnology, Southwest University, Chongqing 400716, China
| | - Yaru Yin
- School of Biotechnology, Southwest University, Chongqing 400716, China
| | - Lingyan Wang
- School of Biotechnology, Southwest University, Chongqing 400716, China
| | - Yong Zhu
- School of Biotechnology, Southwest University, Chongqing 400716, China.
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11
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Galichanin K. Exposure to subthreshold dose of UVR-B induces apoptosis in the lens epithelial cells and does not in the lens cortical fibre cells. Acta Ophthalmol 2017; 95:834-838. [PMID: 28083904 DOI: 10.1111/aos.13370] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 11/19/2016] [Indexed: 01/20/2023]
Abstract
PURPOSE The aim of this study was to investigate in which part of the lens in vivo exposure to subthreshold dose of UVR-B radiation induces apoptosis. METHODS Twenty 6-week-old female albino Sprague-Dawley rats were exposed to subthreshold dose (1 kJ/m2 ) of UVR-B unilaterally and killed at 120 hr after exposure. Lenses were enucleated and dissected on three regions: the lens epithelium, the cortex and the nucleus. The lens nucleus then was removed. Apoptosis markers p53 and caspase 3 were used to study apoptosis in the lens regions. qRT-PCR and Western blot were utilized to analyse the lenses. RESULTS TP53 and CASP3 mRNA expressions are increased in exposed lenses, both in the lens epithelium and in the cortex regions, in relation to non-exposed lenses. Expression of p53 protein is increased in exposed lens epithelium in relation to non-exposed lens epithelium. Caspase 3 protein is expressed in exposed lens epithelial cells, while it is not expressed in non-exposed lens epithelial cells. p53 and caspase 3 proteins are not expressed in either exposed nor non-exposed lens fibre cells. CONCLUSION Exposure to UVR-B increases mRNA transcription of apoptosis marker p53 in vivo in both regions of the lens and of apoptosis marker caspase 3 in the lens cortex. Exposure to UVR-B increases p53 and caspase 3 proteins expression just in the lens epithelium. In vivo exposure to subthreshold dose of UVR-B induces apoptosis in the lens epithelial cells and does not in the lens fibre cells.
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Affiliation(s)
- Konstantin Galichanin
- Gullstrand lab; Section of Ophthalmology; Department of Neuroscience; Uppsala University; Uppsala Sweden
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12
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Abstract
Despite being a treatable disease, cataract is still the leading cause for blindness in the world. Solar ultraviolet radiation is epidemiologically linked to cataract development, while animal and in vitro studies prove a causal relationship. However, the pathogenetic pathways for the disease are not fully understood and there is still no perfect model for human age related cataract. This non-comprehensive overview focus on recent developments regarding effects of solar UV radiation wavebands on the lens. A smaller number of fundamental papers are also included to provide a backdrop for the overview. Future studies are expected to further clarify the cellular and subcellular mechanisms for UV radiation-induced cataract and especially the isolated or combined temporal and spatial effects of UVA and UVB in the pathogenesis of human cataract. Regardless of the cause for cataract, there is a need for advances in pharmaceutical or other treatment modalities that do not require surgical replacement of the lens.
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Affiliation(s)
- Stefan Löfgren
- Karolinska Institutet, St. Erik Eye Hospital, Polhemsgatan 50, 11282 Stockholm, Sweden.
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13
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Dong Y, Zheng Y, Xiao J, Zhu C, Zhao M. Regulatory effect of Bcl-2 in ultraviolet radiation-induced apoptosis of the mouse crystalline lens. Exp Ther Med 2015; 11:973-977. [PMID: 26998022 DOI: 10.3892/etm.2015.2960] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 09/10/2014] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to analyze the role of Bcl-2 during the process of apoptosis in the mouse crystalline lens. In total, 12 normal mice served as the control group and 12 Bcl-2 knockout (K.O) mice served as the experimental group. The mouse crystalline lens was sampled for the detection of Bcl-2 and caspase-3 expression following exposure to ultraviolet (UV) radiation. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was used to determine Bcl-2 expression in the groups of normal mice receiving UV radiation or not receiving UV radiation. Samples of the murine crystalline lens were microscopically harvested and analyzed using western blotting. Apoptosis was detected using terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) assay. Furthermore, caspase 3 activity was examined using enzyme-linked immunosorbent assay kits, and RT-qPCR was used to analyze caspase-3 expression levels. The results of the present study demonstrated that there was no statistically significant difference in the level of Bcl-2 gene transcription between the two groups. In addition, UV radiation did not change the macrostructure of the crystalline lens in the group of normal mice or the group of Bcl-2 K.O mice. The results of the TUNEL assay indicated that the normal-UV group exhibited a more significant apoptosis level compared with the Bcl-2 K.O-UV group. Furthermore, the mRNA expression level of caspase-3 in the normal-UV group was significantly higher compared with the normal-nonUV group (P<0.05), while the levels in the Bcl-2 K.O-UV group were significantly higher compared with the Bcl-2 K.O and normal-nonUV groups (P<0.05). In addition, the mRNA expression level of caspase-3 was significantly higher in the normal-UV, as compared with the Bcl-2 K.O-UV group (P<0.05), and the variation trends in caspase-3 activity were consistent. In conclusion, the results of the present study demonstrated that Bcl-2 may have an important role in the promotion of UV-induced apoptosis in the crystalline lens.
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Affiliation(s)
- Yuchen Dong
- Department of Ophthalmology, Eye Hospital of The Second Clinical Hospital of Jilin University, Jilin University, Changchun, Jilin 130051, P.R. China
| | - Yajuan Zheng
- Department of Ophthalmology, Eye Hospital of The Second Clinical Hospital of Jilin University, Jilin University, Changchun, Jilin 130051, P.R. China
| | - Jun Xiao
- Department of Ophthalmology, Eye Hospital of The Second Clinical Hospital of Jilin University, Jilin University, Changchun, Jilin 130051, P.R. China
| | - Chao Zhu
- Department of Ophthalmology, Eye Hospital of The Second Clinical Hospital of Jilin University, Jilin University, Changchun, Jilin 130051, P.R. China
| | - Meisheng Zhao
- Department of Ophthalmology, Eye Hospital of The Second Clinical Hospital of Jilin University, Jilin University, Changchun, Jilin 130051, P.R. China
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14
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Talebizadeh N, Yu Z, Kronschläger M, Söderberg P. Time evolution of active caspase-3 labelling after in vivo exposure to UVR-300 nm. Acta Ophthalmol 2014; 92:769-73. [PMID: 24698086 DOI: 10.1111/aos.12407] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 03/04/2014] [Indexed: 11/27/2022]
Abstract
PURPOSE To determine the time evolution of active caspase-3 protein expression in albino rat lens after in vivo exposure to low-dose UVR-300 nm, as detected by immunofluorescence. METHODS Forty Sprague-Dawley rats were unilaterally exposed in vivo to 1 kJ/m(2) UVR-300 nm for 15 min. At 0.5, 8, 16 and 24 hr after the UVR exposure, the exposed and contralateral nonexposed lenses were removed and processed for immunohistochemistry. Three mid-sagittal sections from each lens were stained. The cells labelled for active caspase-3 in each section of both the exposed and nonexposed lenses were counted and recorded three times. The difference of the proportion of labelling between the exposed and contralateral nonexposed lenses within each animal was calculated. The differences of active caspase-3 labelling at four different time-points after exposure were used to determine the time evolution of active caspase-3 expression. RESULTS Caspase-3 expression was higher in the exposed than in contralateral nonexposed lenses. The mean difference between the exposed and contralateral nonexposed lenses, including all lenses from all time intervals, was 0.12 ± 0.01 (= CI 95%). The mean differences between the exposed and contralateral nonexposed lenses were 0.11 ± 0.02, 0.13 ± 0.02, 0.14 ± 0.01 and 0.09 ± 0.03 (= CI 95%) for the 0.5-, 8-, 16- and 24-hr time groups, respectively. The orthogonal comparison showed no difference in the expression of active caspase-3 between the 0.5- and the 24-hr groups (Test statistic 1.50, F1,36 = 4.11, p < 0.05) or between the 8- and the 16-hr groups (test statistic 0.05, F1,36 = 4.11, p < 0.05). There was a difference when comparing the 0.5- and 24-hr groups to the 8- and 16-hr groups (test statistic 7.01, F1,36 = 4.11, p < 0.05). CONCLUSION The expression of active caspase-3 in the lens epithelium increases after UVR exposure. There is a peak of expression approximately 16 hr after the exposure.
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Affiliation(s)
- Nooshin Talebizadeh
- Gullstrand Lab; Ophthalmology; Department of Neuroscience; University of Uppsala; Uppsala Sweden
| | - Zhaohua Yu
- Gullstrand Lab; Ophthalmology; Department of Neuroscience; University of Uppsala; Uppsala Sweden
| | - Martin Kronschläger
- Gullstrand Lab; Ophthalmology; Department of Neuroscience; University of Uppsala; Uppsala Sweden
| | - Per Söderberg
- Gullstrand Lab; Ophthalmology; Department of Neuroscience; University of Uppsala; Uppsala Sweden
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15
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Talebizadeh N, Yu Z, Kronschläger M, Söderberg P. Modelling the time evolution of active caspase-3 protein in the rat lens after in vivo exposure to ultraviolet radiation-B. PLoS One 2014; 9:e106926. [PMID: 25244366 PMCID: PMC4171092 DOI: 10.1371/journal.pone.0106926] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 08/03/2014] [Indexed: 11/19/2022] Open
Abstract
Purpose To introduce a model for the time evolution of active caspase-3 protein expression in albino rat lens up to 24 hours after in vivo exposure to low dose UVR in the 300 nm wavelength region (UVR-300 nm). Methods Forty Sprague-Dawley rats were unilaterally exposed in vivo to 1 kJ/m2 UVR-300 nm for 15 minutes. At 0.5, 8, 16, and 24 hours after the UVR exposure, the exposed and contralateral not-exposed lenses were removed and processed for immunohistochemistry. The differences in the probability of active caspase-3 expression at four different time points after exposure were used to determine the time evolution of active caspase-3 expression. A logistic model was introduced for the expression of active caspase-3. The parameters for the exposed and the not exposed lenses were estimated for the observation time points. Results The exposure to UVR-300 nm impacted on the parameters of the logistic model. Further, the parameters of the model varied with time after exposure to UVR-300 nm. Conclusion The logistic model predicts the impact of exposure to UVR-300 nm on the spatial distribution of probability of active caspase-3 protein expression, depending on time.
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Affiliation(s)
- Nooshin Talebizadeh
- Gullstrand lab of Ophthalmology, Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Zhaohua Yu
- Gullstrand lab of Ophthalmology, Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Martin Kronschläger
- Gullstrand lab of Ophthalmology, Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Per Söderberg
- Gullstrand lab of Ophthalmology, Department of Neuroscience, Uppsala University, Uppsala, Sweden
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Kronschläger M, Yu Z, Talebizadeh N, Meyer LM, Hallböök F, Söderberg PG. Evolution of TUNEL-labeling in the Rat Lens AfterIn VivoExposure to Just Above Threshold Dose UVB. Curr Eye Res 2013; 38:880-5. [DOI: 10.3109/02713683.2013.783079] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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