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Zou X, Zhang J, Wang Y, Zhou D, Deng G, Liu Z. IGF-1 rs6218 polymorphisms modulate the susceptibility to age-related cataract. PeerJ 2024; 12:e17220. [PMID: 38618568 PMCID: PMC11011587 DOI: 10.7717/peerj.17220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/20/2024] [Indexed: 04/16/2024] Open
Abstract
Background Single nucleotide polymorphisms (SNPs), as the most abundant form of DNA variation in the human genome, contribute to age-related cataracts (ARC) development. Apoptosis of lens epithelial cells (LECs) is closely related to ARC formation. Insulin-like growth factor 1 (IGF1) contributes to cell apoptosis regulation. Moreover, IGF1 was indicated to exhibit a close association with cataract formation. Afterward, an investigation was conducted to examine the correlation between polymorphisms in IGF1 and the susceptibility to ARC. Methods The present investigation was a case-control study. Venous blood draws were collected from the participants for DNA genotyping. Lens capsule samples were collected to detect mRNA and apoptosis. TaqMan RT-PCR was used to detect IGF1 polymorphism genotypes and qRT PCR was used to detect IGF1 mRNA levels in LECs. LEC apoptosis was evaluated through flow cytometry. The chi-square test was used to compare differences between ARCs and controls of each SNP. Results We found that the G allele frequency in the IGF1-rs6218 was higher in the ARCs than in the controls. Furthermore, it was observed that the rs6218 GG genotype exhibited a positive correlation to elevated levels of IGF1 mRNA in LECs. The IGF1 mRNA in the LECs and the apoptosis of LECs in nuclear type of ARCs (ARNC) was higher than the controls. Conclusion The susceptibility to ARC was related to IGF1-rs6218 polymorphism, and this polymorphism is associated with IGF1 expression at the mRNA level. Moreover, apoptosis in LECs of ARNCs was found to be increased.
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Affiliation(s)
- Xi Zou
- Changzhou Medical Center, Changzhou, China
- The Third People’s Hospital of Changzhou, Changzhou, China
| | - Jun Zhang
- The Third People’s Hospital of Changzhou, Changzhou, China
| | - Yong Wang
- Nantong First People’s Hospital, Nantong, China
| | - Dong Zhou
- The Third People’s Hospital of Changzhou, Changzhou, China
| | - Guohua Deng
- The Third People’s Hospital of Changzhou, Changzhou, China
| | - Zhinan Liu
- The Third People’s Hospital of Changzhou, Changzhou, China
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Mao W, Zhang Z. The Hsa_circ_0105558/miR-182-5p/ATF6 Cascade Affects H 2O 2-Triggered Oxidative Damage and Apoptosis of Human Lens Epithelial Cells. Biochem Genet 2024:10.1007/s10528-024-10753-1. [PMID: 38530576 DOI: 10.1007/s10528-024-10753-1] [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: 07/26/2023] [Accepted: 02/20/2024] [Indexed: 03/28/2024]
Abstract
Age-related cataract (ARC) is the prevalent cause of useful vision loss. Circular RNAs are related to ARC pathogenesis partly through their competing endogenous RNA (ceRNA) activity. Herein, we defined the action of hsa_circ_0105558 in hydrogen peroxide (H2O2)-driven apoptosis and oxidative damage in human lens epithelial SRA01/04 cells. Hsa_circ_0105558, microRNA (miR)-182-5p and activating transcription factor 6 (ATF6) were evaluated by a qRT-PCR or immunoblotting method. The hsa_circ_0105558/miR-182-5p and miR-182-5p/ATF6 relationships were predicted by bioinformatics analysis and confirmed by dual-luciferase reporter assay. Reactive oxygen species level, glutathione peroxidase level, superoxide dismutase activity, and malondialdehyde level were measured using the matched assay kits. Hsa_circ_0105558 was upregulated in human ARC lens and H2O2-exposed SRA01/04 cells. Suppression of hsa_circ_0105558 attenuated H2O2-driven SRA01/04 cell apoptosis and oxidative damage. Hsa_circ_0105558 targeted miR-182-5p, and reduced miR-182-5p expression reversed the influence of hsa_circ_0105558 depletion on H2O2-driven oxidative damage and apoptosis. ATF6 was a target of miR-182-5p, and miR-182-5p-driven downregulation of ATF6 regulated cell oxidative damage and apoptosis under H2O2 insult. Moreover, hsa_circ_0105558 functioned as a ceRNA to post-transcriptionally control ATF6 expression through miR-182-5p competition. Our study demonstrates that hsa_circ_0105558 modulates SRA01/04 cell oxidative damage and apoptosis under H2O2 insult through the miR-182-5p/ATF6 cascade.
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Affiliation(s)
- Wei Mao
- Refractive Surgery Department, Ningbo Eye Hospital, Ningbo, 315010, Zhejiang, China.
| | - Zhe Zhang
- Refractive Surgery Department, Ningbo Eye Hospital, Ningbo, 315010, Zhejiang, China
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Cui Y, Yang H, Shi S, Ping X, Zheng S, Tang X, Yu X, Shentu X. TP53INP2 Contributes to TGF-β2-Induced Autophagy during the Epithelial–Mesenchymal Transition in Posterior Capsular Opacification Development. Cells 2022; 11:cells11152385. [PMID: 35954230 PMCID: PMC9368444 DOI: 10.3390/cells11152385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/15/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Posterior capsule opacification (PCO) is the most common complication after cataract surgery, in which increased levels of transforming growth factor-beta 2 (TGF-β2) accelerate PCO formation; however, the pathological mechanisms are not fully understood. This study aims to explore the regulation mechanism of TGF-β2 in PCO formation via its autophagic functions. Methods: The autophagic effect of TGF-β2 was detected by transmission electron microscopy (TEM), Western blotting, and immunofluorescence analysis. The association between autophagy and the epithelial–mesenchymal transition (EMT) was evaluated by qPCR and Western blotting. The transcriptome analysis was used to uncover the molecular mechanism of TGF-β2-induced PCO formation. Results: TGF-β2 specifically promotes autophagy flux in human lens epithelial cells. The activation of autophagy by rapamycin can promote EMT marker synthesis and improve cell migration. However, the inhibition of autophagy by 3-MA attenuates EMT. To uncover the molecular mechanisms, we performed RNA sequencing and found that TGF-β2 elevated tumor protein p53-inducible nuclear protein2 (TP53INP2) expression, which was accompanied by a nuclear-to-cytoplasm translocation. Moreover, the knockdown of TP53INP2 blocked the TGF-β2-induced autophagy and EMT processes, revealing that TP53INP2 plays an important role in TGF-β2-induced autophagy during EMT. Conclusions: Taken together, the results of this study suggested that TP53INP2 was a novel regulator of PCO development by TGF-β2, and notably, TP53INP2, may be a potential target for the pharmacological treatment of PCO.
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Affiliation(s)
- Yilei Cui
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; (Y.C.); (H.Y.); (S.S.); (X.P.); (X.T.); (X.Y.)
- Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, China
| | - Hao Yang
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; (Y.C.); (H.Y.); (S.S.); (X.P.); (X.T.); (X.Y.)
- Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, China
| | - Silu Shi
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; (Y.C.); (H.Y.); (S.S.); (X.P.); (X.T.); (X.Y.)
- Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, China
| | - Xiyuan Ping
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; (Y.C.); (H.Y.); (S.S.); (X.P.); (X.T.); (X.Y.)
- Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, China
| | - Sifan Zheng
- GKT School of Medical Education, King’s College London, London WC2R 2LS, UK;
| | - Xiajing Tang
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; (Y.C.); (H.Y.); (S.S.); (X.P.); (X.T.); (X.Y.)
- Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, China
| | - Xiaoning Yu
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; (Y.C.); (H.Y.); (S.S.); (X.P.); (X.T.); (X.Y.)
- Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, China
| | - Xingchao Shentu
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; (Y.C.); (H.Y.); (S.S.); (X.P.); (X.T.); (X.Y.)
- Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, China
- Correspondence: ; Tel.: +86-0571-13515818860
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Cui N, Liu S, Zheng Z, Pi Z, Liu Z, Song F. The chemical profile of Fubai Chrysanthemum (Fubaiju) and its mechanism in preventing cataract based on ultrahigh-performance liquid chromatography coupled with mass spectrometry and network pharmacology. J Sep Sci 2022; 45:2406-2414. [PMID: 35490347 DOI: 10.1002/jssc.202100832] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 04/08/2022] [Accepted: 04/20/2022] [Indexed: 11/12/2022]
Abstract
Chrysanthemum is a kind of herb that can be used for both medicine and food. Although it has been shown to affect the redox damage of the lens, but the mechanism of action has not been systematically studied. This study identified the chemical profile of Fubai Chrysanthemum. Meanwhile, network pharmacology and the enrichment of the Kyoto encyclopedia of genes and genomes pathway were combined to investigate the substance basis of Fubai Chrysanthemum for preventing cataract. The aqueous extracts of Fubaiju mainly contained 39 compounds. Compared with Gongju, Jinsiju and Wild chrysanthemum, Fubai Chrysanthemum showed a higher scavenging rate of 1,1-diphenyl-2-picrylhydrazyl free radicals and higher content of total flavonoid. 14 chemical differences in four kinds of chrysanthemum were found based on principal component difference analysis. Pathway enrichment analysis showed that the main mechanisms of Fubai Chrysanthemum for preventing cataract were affecting the oxidative stress process and regulating cell growth and metabolism. Eventually, 11 key targets of Fubai Chrysanthemum for cataract prevention were identified. The strategy provided a better understanding of the chemical profile of Fubai Chrysanthemum and elucidated that its higher flavonoid content plays an important role in preventing cataract through antioxidant action and regulating cell growth. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Naiyun Cui
- State Key Laboratory of Electroanalytical Chemistry, National Center of Mass Spectrometry in Changchun and Jilin Provincal Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Shu Liu
- State Key Laboratory of Electroanalytical Chemistry, National Center of Mass Spectrometry in Changchun and Jilin Provincal Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Zhong Zheng
- State Key Laboratory of Electroanalytical Chemistry, National Center of Mass Spectrometry in Changchun and Jilin Provincal Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Zifeng Pi
- State Key Laboratory of Electroanalytical Chemistry, National Center of Mass Spectrometry in Changchun and Jilin Provincal Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.,College of Pharmacy, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Zhiqiang Liu
- State Key Laboratory of Electroanalytical Chemistry, National Center of Mass Spectrometry in Changchun and Jilin Provincal Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Fengrui Song
- State Key Laboratory of Electroanalytical Chemistry, National Center of Mass Spectrometry in Changchun and Jilin Provincal Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
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