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Liang X, Zhang C, Shen L, Ding L, Guo H. Role of non‑coding RNAs in UV‑induced radiation effects (Review). Exp Ther Med 2024; 27:262. [PMID: 38756908 PMCID: PMC11097301 DOI: 10.3892/etm.2024.12550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 04/04/2024] [Indexed: 05/18/2024] Open
Abstract
Ultraviolet (UV) is divided into UVA (long-wave, 320-400 nm), UVB (middle-wave, 280-320 nm) and UVC (short-wave, 100-280 nm) based on wavelength. UV radiation (UVR) from sunlight (UVA + UVB) is a major cause of skin photodamage including skin inflammation, aging and pigmentation. Accidental exposure to UVC burns the skin and induces skin cancer. In addition to the skin, UV radiation can also impair visual function. Non-coding RNAs (ncRNAs) are a class of functional RNAs that do not have coding activity but can control cellular processes at the post-transcriptional level, including microRNA (miRNA), long non-coding RNA (lncRNA) and circulatory RNA (circRNA). Through a review of the literature, it was determined that UVR can affect the expression of various ncRNAs, and that this regulation may be wavelength specific. Functionally, ncRNAs participate in the regulation of photodamage through various pathways and play pathogenic or protective regulatory roles. In addition, ncRNAs that are upregulated or downregulated by UVR can serve as biomarkers for UV-induced diseases, aiding in diagnosis and prognosis assessment. Therapeutic strategies targeting ncRNAs, including the use of natural drugs and their extracts, have shown protective effects against UV-induced photodamage. In the present review, an extensive summarization of previous studies was performed and the role and mechanism of ncRNAs in UV-induced radiation effects was reviewed to aid in the diagnosis and treatment of UV-related diseases.
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Affiliation(s)
- Xiaofei Liang
- Department of Laboratory Medicine, The First Hospital of Qiqihar, Qiqihar, Heilongjiang 161000, P.R. China
| | - Chao Zhang
- Department of Laboratory Medicine, The First Hospital of Qiqihar, Qiqihar, Heilongjiang 161000, P.R. China
| | - Lijuan Shen
- Department of Laboratory Medicine, Qiqihar MingZhu Hospital, Qiqihar, Heilongjiang 161000, P.R. China
| | - Ling Ding
- Department of Laboratory Medicine, The First Hospital of Qiqihar, Qiqihar, Heilongjiang 161000, P.R. China
| | - Haipeng Guo
- Department of Laboratory Medicine, The First Hospital of Qiqihar, Qiqihar, Heilongjiang 161000, P.R. China
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Cui F, Sun Z, Zhang X, Liu C. CircMAP3K4 Suppresses H2O2-Induced Human Lens Epithelial Cell Injury by miR-630/ERCC6 Axis in Age-Related Cataract. Curr Eye Res 2024; 49:487-495. [PMID: 38152055 DOI: 10.1080/02713683.2023.2298908] [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] [Received: 08/01/2023] [Accepted: 12/20/2023] [Indexed: 12/29/2023]
Abstract
BACKGROUND Dysregulated circular RNAs (circRNAs) is involved in the pathogenesis of age-related cataract (ARC). Here, this study aimed to explore the function and mechanism of circMAP3K4 in ARC. METHODS Human lens epithelial cells were exposed to hydrogen peroxide (H2O2) for functional experiments. qRT-PCR and western blotting analyses were used for the expression detection of genes and proteins. Cell proliferation was tested using cell counting kit-8 and EdU. Flow cytometry was applied to analyze cell apoptosis and cell cycle. The oxidative stress was evaluated by detecting the production of malondialdehyde (MDA), reactive oxygen species (ROS), and superoxide dismutase (SOD). The target relationship between miR-630 and circMAP3K4 or Excision repair cross-complementing group 6 (ERCC6) was analyzed by dual-luciferase reporter assay and RIP assay. RESULTS CircMAP3K4 was lowly expressed in ARC patients and H2O2-induced HLECs. Functionally, forced expression of circMAP3K4 protected HLECs against H2O2-evoked proliferation inhibition, cell cycle arrest and the promotion of cell apoptosis and oxidative stress. Mechanistically, circMAP3K4 acted as a sponge for miR-630 to regulate the expression of its target ERCC6. MiR-630 was highly expressed while ERCC6 was lowly expressed in ARC patients and H2O2-induced HLECs. Up-regulation of miR-630 could reverse the protective effects of circMAP3K4 on HLECs under H2O2 treatment. In addition, inhibition of miR-630 suppressed H2O2-induced HLEC injury, which was abolished by ERCC6 silencing. CONCLUSION Forced expression of circMAP3K4 protected HLECs against H2O2-evoked apoptotic and oxidative injury via miR-630/ERCC6 axis, suggesting that circMAP3K4 may function as a potential therapeutic target for ARC.
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Affiliation(s)
- Fenghua Cui
- Department of Ophthalmology, the Jinan Second People's Hospital, Jinan City, Shandong, China
| | - Zhonghua Sun
- Department of Ophthalmology, the Jinan Second People's Hospital, Jinan City, Shandong, China
| | - Xueyan Zhang
- Department of Ophthalmology, the Jinan Second People's Hospital, Jinan City, Shandong, China
| | - Cuijuan Liu
- Department of Ophthalmology, the Jinan Second People's Hospital, Jinan City, Shandong, 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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Li P, Zhong R, Yu J, Wang Y, Wang C, Geng W, Bao S, Wang S, Zhang G, Zhu X, Ji M, Guan H. DCLRE1A Contributes to DNA Damage Repair and Apoptosis in Age-Related Cataracts by Regulating the lncRNA/miRNA/mRNA Axis. Curr Eye Res 2023; 48:992-1005. [PMID: 37503815 DOI: 10.1080/02713683.2023.2241159] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 07/23/2023] [Indexed: 07/29/2023]
Abstract
PURPOSE Age-related cataract (ARC) is associated with the deregulation of transcription and defects in DNA repair in lens epithelial cells (LECs). DCLRE1A acted in DNA interstrand cross-links pathway to improve DNA replication and transcription. The aim of this study was to examined the further regulatory effect on DCLRE1A in the lncRNA-miRNA-mRNA network using a cell model of DCLRE1A overexpression (OE-DCLRE1A) in LECs. METHODS The expression level of DCLRE1A in ARC tissues and SRA01/04 cells after H2O2 treatment was measured as protein and mRNA by qRT-PCR and Western Blot(WB). CCK8, and TUNEL assays detected the change in cell viability and apoptosis, respectively. Furthermore, Immunofluorescence assays detect the expression of DNA damaged and repair marker proteins after OE-DCLRE1A. The global expression profiles of lncRNAs, miRNAs, and mRNAs were determined using high-throughput sequencing. KEGG and GO enrichment analysis disclose the possible function of differentially expressed (DE) lncRNA, miRNA, and mRNA. RESULTS The protein and mRNA of DCLRE1A were decreased in the anterior capsule of ARC and SRA01/04 cells treated by H2O2. OE-DCLRE1A improved damaged-DNA repair and enhanced cell viability against apoptosis after H2O2 treatment. Furthermore, we demonstrated the DE-molecules between the OE-DCLRE1A and control groups including 595 DE-lncRNAs, 221 DE-miRNAs, and 4718 DE-mRNAs. Next, bioinformatics analysis not only found that the DE-mRNAs are mainly involved in DNA repair-related signaling pathways after OE-DCLRE1A, but also screened two lncRNA-miRNA-mRNA networks focusing on DNA damage activated by OE-DCLRE1A, which involved 2 lncRNAs, 2 miRNAs, and 53 mRNAs. CONCLUSION We revealed that DCLRE1A activated the lncRNA/miRNA/DNA-repair network to take part in DNA repair processes, which not only represents a new regulatory mechanism employed by DCLRE1A but also uncovers the screening lncRNA may hold potential therapeutic values in ARC formation. However, these conclusions will need to be confirmed by future studies in vitro and in vivo models.
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Affiliation(s)
- Pengfei Li
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Renhao Zhong
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Jianfeng Yu
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Ying Wang
- Department of Ophthalmology, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Congyu Wang
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Wenjing Geng
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Sijie Bao
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Siwen Wang
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Guowei Zhang
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Xi Zhu
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Min Ji
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Huaijin Guan
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
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Guo M, Su F, Chen Y, Su B. Ectopic circSTK39 Expression Ameliorates Hydrogen Peroxide-Induced Human Lens Epithelial Cell Apoptosis and Oxidative Stress through the miR-125a-5p/ERCC6 Pathway. Curr Eye Res 2023; 48:278-288. [PMID: 36322706 DOI: 10.1080/02713683.2022.2143529] [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: 11/17/2022]
Abstract
PURPOSE More and more studies suggest that circular RNA (circRNA) is involved in the pathogenesis of age-related cataract (ARC). CircSTK39, a circular RNA, has inhibitory effects on cancer progression. However, there is no data regarding the role of circSTK39 in ARC occurrence and the underlying mechanism. METHODS ARC cell model was established by inducing lens epithelial cells (SRA01/04) using hydrogen peroxide (H2O2). CircSTK39, microRNA-125a-5p (miR-125a-5p), and ERCC excision repair 6, chromatin remodeling factor (ERCC6) expression were detected by quantitative real-time polymerase chain reaction. Western blot was conducted to assess protein expression. Cell viability, proliferation, and apoptosis were investigated by cell counting kit-8 assay, 5-Ethynyl-29-deoxyuridine assay, and flow cytometry analysis, respectively. Oxidative stress was evaluated using commercial kits. Dual-luciferase reporter assay, RNA immunoprecipitation assay, and RNA pull-down assay were used to identify the relationship between miR-125a-5p and circSTK39 or ERCC6. RESULTS CircSTK39 and ERCC6 expression were significantly downregulated, but miR-125a-5p expression was upregulated in the lens tissues of ARC patients and H2O2-treated SRA01/04 cells. H2O2 treatment led to decreased cell proliferation and increased cell apoptosis and oxidative stress, accompanied by the increases of C-caspase3 and Bax expression and the decrease of Bcl-2 expression; however, these effects were reversed after circSTK39 overexpression. MiR-125a-5p was found to participate in H2O2-triggered cell damage by interacting with circSTK39. Additionally, ERCC6 silencing inhibited circSTK39 overexpression-mediated action. Importantly, circSTK39 regulated ERCC6 expression by interaction with miR-125a-5p in H2O2-treated SRA01/04 cells. CONCLUSION The increased expression of circSTK39 ameliorated H2O2-induced SRA01/04 cell injury through the miR-125a-5p/ERCC6 pathway.
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Affiliation(s)
- Ming Guo
- Department of Ophthalmology, Jingzhou Hospital, Yangtze University (Jingzhou Central Hospital), Jingzhou, Hubei, China
| | - Fanfan Su
- Department of Ophthalmology, Jingzhou Hospital, Yangtze University (Jingzhou Central Hospital), Jingzhou, Hubei, China
| | - Yao Chen
- Department of Ophthalmology, Jingzhou Hospital, Yangtze University (Jingzhou Central Hospital), Jingzhou, Hubei, China
| | - Bo Su
- Department of Pathology, School of Medicine, Yangtze University, Jingzhou, Hubei, China
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XRCC5 downregulated by TRIM25 is susceptible for lens epithelial cell apoptosis. Cell Signal 2022; 94:110314. [PMID: 35331835 DOI: 10.1016/j.cellsig.2022.110314] [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: 12/15/2021] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 11/22/2022]
Abstract
Exposure of the lens to UVB can lead to oxidative stress, which would result in age-related cataract (ARC) formation. In this study, we investigate the regulatory mechanism of tripartite motif containing 25 (TRIM25) in ARC. The protein level of TRIM25 was elevated in ARC specimens and UVB-exposed SRA01/04 cells. Bioinformatic analysis indicated that X-ray repair cross complementing 5 (XRCC5) might interact with TRIM25, and the interaction was validated via immunoprecipitation. TRIM25 interacted with XRCC5 and ubiquitinated it for degradation. Further studies showed that XRCC5 overexpression notably repressed UVB-induced apoptosis, while XRCC5 knockdown promoted apoptosis. Of note, ubiquitination of XRCC5 mediated by TRIM25 overexpression facilitated apoptosis. Attenuation of XRCC5 ubiquitination by mutant with substitution of lysine residues with arginine residues rescued its anti-apoptosis effect. Moreover, we observed that TRIM25-mediated XRCC5 degradation was reversed by proteasome inhibitor MG-132 or lysosome inhibitor 3-MA. In conclusion, TRIM25 mediates ubiquitination of XRCC5 to regulate the function and degradation of XRCC5, suggesting that interventions targeting TRIM25 might be a promising therapeutic strategy for ARC.
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Zou P, Zhang X, Zhang R, Chai X, Zhao Y, Li E, Zhang Q, Yan R, Yang J, Liao B. Blockage of ERCC6 Alleviates Spinal Cord Injury Through Weakening Apoptosis, Inflammation, Senescence, and Oxidative Stress. Front Mol Biosci 2022; 9:853654. [PMID: 35392536 PMCID: PMC8980712 DOI: 10.3389/fmolb.2022.853654] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Objective: Spinal cord injury (SCI) is a devastating disease resulting in lifelong disability, but the molecular mechanism remains unclear. Our study was designed to observe the role of excision repair cross-complementing group 6 (ERCC6) following SCI and to determine the underlying mechanism. Methods: SCI mouse models and LPS-induced microglia cell models were established. ERCC6 expression was blocked by ERCC6-siRNA-carrying lentivirus. Nissl staining was utilized for detecting neuronal damage, and apoptosis was analyzed with TUNEL and Western blotting (apoptotic markers). Immunofluorescence was used for measuring macrophage markers (CD68 and F4/80) and astrocyte and microglia markers (GFAP and Iba-1). Pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6) were measured via ELISA. Senescent cells were estimated via SA-β-Gal staining as well as Western blot (senescent markers p21 and p27). Oxidative stress was investigated by detecting the expression of 4-HNE, Nrf2, and Keap1, and intracellular ROS levels. Results: ERCC6 expression was remarkably upregulated both in the spinal cord of SCI mice and LPS-induced microglia cells. ERCC6 deficiency alleviated neuronal damage and apoptosis. Macrophage infiltration and inflammatory response were suppressed by si-ERCC6 treatment. Moreover, ERCC6 blockage ameliorated astrocyte and microglia activation and cell senescence in the damaged spinal cord. Excessive oxidative stress was significantly decreased by ERCC6 knockdown in SCI. Conclusion: Collectively, ERCC6 exerts crucial functions in mediating physiological processes (apoptosis, inflammation, senescence, and oxidative stress), implying that ERCC6 might act as a prospective therapeutic target against SCI.
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Affiliation(s)
- Peng Zou
- Department of Spinal Surgery, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
- Department of Spinal Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Xiaoping Zhang
- Department of Spinal Surgery, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Rui Zhang
- Department of Spinal Surgery, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Xin Chai
- Department of Spinal Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Yuanting Zhao
- Department of Spinal Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Erliang Li
- Department of Spinal Surgery, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Qian Zhang
- Department of Spinal Surgery, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Rongbao Yan
- Department of Spinal Surgery, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Junsong Yang
- Department of Spinal Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Bo Liao, ; Junsong Yang,
| | - Bo Liao
- Department of Spinal Surgery, Tangdu Hospital, Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
- *Correspondence: Bo Liao, ; Junsong Yang,
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Li Q, Liu S, Yang G, Li M, Qiao P, Xue Q. Naringenin inhibits autophagy and epithelial-mesenchymal transition of human lens epithelial cells by regulating the Smad2/3 pathway. Drug Dev Res 2021; 83:389-396. [PMID: 34402084 DOI: 10.1002/ddr.21868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 12/15/2022]
Abstract
Cataract is the number one cause of blindness in the world. Fibrosis of the lens is the main cause of cataract. Pathological epithelial-mesenchymal transition (EMT) plays an important role in the development of fibrotic cataract. Inhibition of EMT may be an effective treatment for fibrosis of lens epithelial cells. Naringin (NRG) is one of the major citrus flavonoids, which has many pharmacological properties, including anti-inflammatory and cardioprotective. However, the effect of NRG on cataract induced by abnormal fibrosis of LECs is not clear. Herein, we found NRG inhibited transforming growth factor β2 (TGFβ2)-induced SRA01/04 cell viability. Additionally, NRG inhibited TGFβ2-induced cell migration and EMT. We further noticed that NRG inhibited autophagy and Smad2/3 phosphorylation in LECs. We therefore thought Naringenin inhibited autophagy and EMT of human LECs by regulating the Smad2/3 pathway. NRG could therefore serve as a promising drug for cataract treatment.
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Affiliation(s)
- Qingnan Li
- Department of Ophthalmology, Beijing Jishuitan Hospital, Beijing, China
| | - Shuang Liu
- Department of Ophthalmology, Beijing Jishuitan Hospital, Beijing, China
| | - Guang Yang
- Department of Ophthalmology, Beijing Jishuitan Hospital, Beijing, China
| | - Mingming Li
- Department of Ophthalmology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China
| | - Peng Qiao
- Department of Ophthalmology, 3201 Hospital, Hanzhong, Shanxi, China
| | - Qiang Xue
- Department of Geriatrics, Beijing Jishuitan Hospital, Beijing, China
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