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He X, Ma J, Yan X, Yang X, Wang P, Zhang L, Li N, Shi Z. CDT1 is a Potential Therapeutic Target for the Progression of NAFLD to HCC and the Exacerbation of Cancer. Curr Genomics 2024; 26:225-243. [PMID: 40433415 PMCID: PMC12107793 DOI: 10.2174/0113892029313473240919105819] [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: 05/06/2024] [Revised: 06/26/2024] [Accepted: 09/06/2024] [Indexed: 05/29/2025] Open
Abstract
Aims This study aimed to identify potential therapeutic targets in the progression from non-alcoholic fatty liver disease (NAFLD) to hepatocellular carcinoma (HCC), with a focus on genes that could influence disease development and progression. Background Hepatocellular carcinoma, significantly driven by non-alcoholic fatty liver disease, represents a major global health challenge due to late-stage diagnosis and limited treatment options. This study utilized bioinformatics to analyze data from GEO and TCGA, aiming to uncover molecular biomarkers that bridge NAFLD to HCC. Through identifying critical genes and pathways, our research seeks to advance early detection and develop targeted therapies, potentially improving prognosis and personalizing treatment for NAFLD-HCC patients. Objectives Identify key genes that differ between NAFLD and HCC; Analyze these genes to understand their roles in disease progression; Validate the functions of these genes in NAFLD to HCC transition. Methods Initially, we identified a set of genes differentially expressed in both NAFLD and HCC using second-generation sequencing data from the GEO and TCGA databases. We then employed a Cox proportional hazards model and a Lasso regression model, applying machine learning techniques to the large sample data from TCGA. This approach was used to screen for key disease-related genes, and an external dataset was utilized for model validation. Additionally, pseudo-temporal sequencing analysis of single-cell sequencing data was performed to further examine the variations in these genes in NAFLD and HCC. Results The machine learning analysis identified IGSF3, CENPW, CDT1, and CDC6 as key genes. Furthermore, constructing a machine learning model for CDT1 revealed it to be the most critical gene, with model validation yielding an ROC value greater than 0.80. The single-cell sequencing data analysis confirmed significant variations in the four predicted key genes between the NAFLD and HCC groups. Conclusion Our study underscores the pivotal role of CDT1 in the progression from NAFLD to HCC. This finding opens new avenues for early diagnosis and targeted therapy of HCC, highlighting CDT1 as a potential therapeutic target.
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Affiliation(s)
- Xingyu He
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu University, 610083, P.R. China
| | - Jun Ma
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu University, 610083, P.R. China
| | - Xue Yan
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu University, 610083, P.R. China
| | - Xiangyu Yang
- West China Hospital, Sichuan University, 610083, P.R. China
| | - Ping Wang
- West China Hospital, Sichuan University, 610083, P.R. China
| | - Lijie Zhang
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu University, 610083, P.R. China
| | - Na Li
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu University, 610083, P.R. China
| | - Zheng Shi
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu University, 610083, P.R. China
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Zhang R, Li L, Li H, Bai H, Suo Y, Cui J, Wang Y. Ginsenoside 20(S)-Rg3 reduces KIF20A expression and promotes CDC25A proteasomal degradation in epithelial ovarian cancer. J Ginseng Res 2024; 48:40-51. [PMID: 38223825 PMCID: PMC10785255 DOI: 10.1016/j.jgr.2023.06.008] [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: 11/16/2022] [Revised: 06/15/2023] [Accepted: 06/25/2023] [Indexed: 01/16/2024] Open
Abstract
Background Ginsenoside 20(S)-Rg3 shows promising tumor-suppressive effects in ovarian cancer via inhibiting NF-κB signaling. This study aimed to explore the downstream tumor suppressive mechanisms of ginsenoside Rg3 via this signaling pathway. Materials and methods A systematical screening was applied to examine the expression profile of 41 kinesin family member genes in ovarian cancer. The regulatory effect of ginsenoside Rg3 on KIF20A expression was studied. In addition, we explored interacting proteins of KIF20A and their molecular regulations in ovarian cancer. RNA-seq data from The Cancer Genome Atlas (TCGA) was used for bioinformatic analysis. Epithelial ovarian cancer cell lines SKOV3 and A2780 were used as in vitro and in vivo cell models. Commercial human ovarian cancer tissue arrays were used for immunohistochemistry staining. Results KIF20A is a biomarker of poor prognosis among the kinesin genes. It promotes ovarian cancer cell growth in vitro and in vivo. Ginsenoside Rg3 can suppress the transcription of KIF20A. GST pull-down and co-immunoprecipitation (IP) assays confirmed that KIF20A physically interacts with BTRC (β-TrCP1), a substrate recognition subunit for SCFβ-TrCP E3 ubiquitin ligase. In vitro ubiquitination and cycloheximide (CHX) chase assays showed that via interacting with BTRC, KIF20A reduces BTRC-mediated CDC25A poly-ubiquitination and enhances its stability. Ginsenoside Rg3 treatment partly abrogates KIF20A overexpression-induced CDC25A upregulation. Conclusion This study revealed a novel anti-tumor mechanism of ginsenoside Rg3. It can inhibit KIF20A transcription and promote CDC25A proteasomal degradation in epithelial ovarian cancer.
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Affiliation(s)
- Rong Zhang
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, China
- Department of Gynecology and Obstetrics, People's Hospital of Shanxi Province, Taiyuan, China
| | - Lei Li
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, China
| | - Huihui Li
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, China
| | - Hansong Bai
- Sichuan Cancer Hospital Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuping Suo
- Department of Gynecology and Obstetrics, People's Hospital of Shanxi Province, Taiyuan, China
| | - Ju Cui
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Yingmei Wang
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, China
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Yoo A, Lee S. Neuronal growth regulator 1 may modulate interleukin-6 signaling in adipocytes. Front Mol Biosci 2023; 10:1148521. [PMID: 37187893 PMCID: PMC10175572 DOI: 10.3389/fmolb.2023.1148521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 04/18/2023] [Indexed: 05/17/2023] Open
Abstract
Interleukin-6 (IL-6) is a pleiotropic cytokine that plays both anti- and pro-inflammatory roles. Due to the restricted expression of membrane IL-6 receptor (IL-6R), most pro-inflammatory functions of IL-6 are attributed to its association with soluble IL-6R (sIL-6R). Neuronal growth regulator 1 (NEGR1) is a brain-enriched membrane protein that has recently been recognized as a risk factor for many human diseases including obesity, depression, and autism. In the present study, we report that the expression levels of IL-6 and IL-6R, as well as the phosphorylation of signal transducer and activator of transcription (STAT) 3, were significantly elevated in white adipose tissues of Negr1 knockout mice. Elevated levels of circulating IL-6 and sIL-6R have also been observed in Negr1 -/- mice. Furthermore, NEGR1 interacted with IL-6R, which was supported by subcellular fractionation and an in situ proximity ligation assay. Importantly, NEGR1 expression attenuated the phosphorylation of STAT3 by sIL-6R, suggesting that NEGR1 negatively regulates IL-6 trans-signaling. Taken together, we propose that NEGR1 may play a regulatory role in IL-6 signaling by interacting with IL-6R, which may contribute to a molecular link underlying obesity, inflammation, and the depression cycle.
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SRSF10 stabilizes CDC25A by triggering exon 6 skipping to promote hepatocarcinogenesis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:353. [PMID: 36539837 PMCID: PMC9764681 DOI: 10.1186/s13046-022-02558-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Alternative splicing (AS) events are extensively involved in the progression of diverse tumors, but how serine/arginine-rich splicing Factor 10 (SRSF10) behaves in hepatocellular carcinoma (HCC) has not been sufficiently studied. We aimed to determine SRSF10 associated AS mechanisms and their effects on HCC progression. METHODS The expression of SRSF10 in HCC tissues was examined, and the in vitro and in vivo functions of SRSF10 were investigated. The downstream AS targets were screened using RNA sequencing. The interaction between SRSF10 protein and exclusion of cell division cycle 25 A (CDC25A) mRNA was identified using RNA immunoprecipitation and crosslinking immunoprecipitation q-PCR. The effects of SRSF10 on CDC25A posttranslational modification, subcellular distribution, and protein stability were verified through coimmunoprecipitation, immunofluorescence, and western blotting. RESULTS SRSF10 was enriched in HCC tissues and facilitated HCC proliferation, cell cycle, and invasion. RNA sequencing showed that SRSF10 promotes exon 6 exclusion of CDC25A pre-mRNA splicing. As a crucial cell cycle mediator, the exon-skipped isoform CDC25A(△E6) was identified to be stabilized and retained in the nucleus due to the deletion of two ubiquitination (Lys150, Lys169) sites in exon 6. The stabilized isoform CDC25A(△E6) derived from AS had stronger cell cycle effects on HCC tumorigenesis, and playing a more significant role than the commonly expressed longer variant CDC25A(L). Interestingly, SRSF10 activated the carcinogenesis role of CDC25A through Ser178 dephosphorylation to cause nuclear retention. Moreover, CDC25A(△E6) was verified to be indispensable for SRSF10 to promote HCC development in vitro and in vivo. CONCLUSIONS We reveal a regulatory pattern whereby SRSF10 contributes to a large proportion of stabilized CDC25A(△E6) production, which is indispensable for SRSF10 to promote HCC development. Our findings uncover AS mechanisms such as CDC25A that might serve as potential therapeutic targets to treat HCC.
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NUMB facilitates autophagy initiation through targeting SCFβ-TrCP2 complex. Cell Death Differ 2022; 29:1409-1422. [DOI: 10.1038/s41418-022-00930-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 12/22/2021] [Accepted: 12/30/2021] [Indexed: 12/09/2022] Open
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Cheon Y, Yoo A, Seo H, Yun SY, Lee H, Lim H, Kim Y, Che L, Lee S. Na/K-ATPase beta1-subunit associates with neuronal growth regulator 1 (NEGR1) to participate in intercellular interactions. BMB Rep 2021. [PMID: 32958118 PMCID: PMC8016658 DOI: 10.5483/bmbrep.2021.54.3.116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Neuronal growth regulator 1 (NEGR1) is a GPI-anchored membrane protein that is involved in neural cell adhesion and communication. Multiple genome wide association studies have found that NEGR1 is a generic risk factor for multiple human diseases, including obesity, autism, and depression. Recently, we reported that Negr1−/− mice showed a highly increased fat mass and affective behavior. In the present study, we identified Na/K-ATPase, beta1-subunit (ATP1B1) as an NEGR1 binding partner by yeast two-hybrid screening. NEGR1 and ATP1B1 were found to form a relatively stable complex in cells, at least partially co-localizing in membrane lipid rafts. We found that NEGR1 binds with ATP1B1 at its C-terminus, away from the binding site for the alpha subunit, and may contribute to intercellular interactions. Collectively, we report ATP1B1 as a novel NEGR1-interacting protein, which may help deciphering molecular networks underlying NEGR1-associated human diseases.
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Affiliation(s)
- Yeongmi Cheon
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
- Gwangju Center, Korea Basic Science Institute (KBSI), Gwangju 61186, Korea
| | - Ara Yoo
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Hyunseok Seo
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Seo-Young Yun
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Hyeonhee Lee
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Heeji Lim
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Youngho Kim
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Lihua Che
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Soojin Lee
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
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Islam S, Dutta P, Chopra K, Rapole S, Chauhan R, Santra MK. FBXW8 regulates G1 and S phases of cell cycle progression by restricting β-TrCP1 function. FEBS J 2021; 288:5474-5497. [PMID: 33742524 DOI: 10.1111/febs.15828] [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: 10/30/2020] [Revised: 01/21/2021] [Accepted: 03/18/2021] [Indexed: 11/30/2022]
Abstract
Sequential alteration in the expression levels of cell cycle regulatory proteins is crucial for faithful cell cycle progression to maintain the cellular homeostasis. F-box protein β-TrCP1 is known to control the expression levels of several important cell cycle regulatory proteins. However, how the function of β-TrCP1 is regulated in spatiotemporal manner during cell cycle progression remains elusive. Here, we show that expression levels of β-TrCP1 oscillate during cell cycle progression with a minimum level at the G1 and S phases of cell cycle. Using biochemical, flow cytometry, and immunofluorescence techniques, we found that oscillation of β-TrCP1 expression is controlled by another F-box protein FBXW8. FBXW8 directs the proteasomal degradation of β-TrCP1 in MAPK pathway-dependent manner. Interestingly, we found that the attenuation of β-TrCP1 by FBXW8 is important for Cdc25A-mediated cell cycle transition from G1 phase to S phase as well as DNA damage-free progression of S phase. Overall, our study reveals the intriguing molecular mechanism and significance of maintenance of β-TrCP1 levels during cell cycle progression by FBXW8-mediated proteasomal degradation.
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Affiliation(s)
- Sehbanul Islam
- Molecular Oncology Laboratory, National Centre for Cell Science, Pune, India.,Department of Biotechnology, Savitribai Phule Pune University, India
| | - Parul Dutta
- Molecular Oncology Laboratory, National Centre for Cell Science, Pune, India.,Department of Biotechnology, Savitribai Phule Pune University, India
| | - Kriti Chopra
- Laboratory of Structural Biology, National Centre for Cell Science, Pune, India
| | - Srikanth Rapole
- Proteomics Laboratory, National Centre for Cell Science, Pune, India
| | - Radha Chauhan
- Laboratory of Structural Biology, National Centre for Cell Science, Pune, India
| | - Manas Kumar Santra
- Molecular Oncology Laboratory, National Centre for Cell Science, Pune, India
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Bi Y, Cui D, Xiong X, Zhao Y. The characteristics and roles of β-TrCP1/2 in carcinogenesis. FEBS J 2020; 288:3351-3374. [PMID: 33021036 DOI: 10.1111/febs.15585] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/02/2020] [Accepted: 10/01/2020] [Indexed: 12/11/2022]
Abstract
β-transducin repeat-containing protein (β-TrCP), one of the well-characterized F-box proteins, acts as a substrate receptor and constitutes an active SCFβ-TrCP E3 ligase with a scaffold protein CUL1, a RING protein RBX1, and an adaptor protein SKP1. β-TrCP plays a critical role in the regulation of various physiological and pathological processes, including signal transduction, cell cycle progression, cell migration, DNA damage response, and tumorigenesis, by governing burgeoning amounts of key regulators for ubiquitination and proteasomal degradation. Given that a variety of β-TrCP substrates are well-known oncoproteins and tumor suppressors, and dysregulation of β-TrCP is frequently identified in human cancers, β-TrCP plays a vital role in carcinogenesis. In this review, we first briefly introduce the characteristics of β-TrCP1, β-TrCP2, and SCFβ-TrCP ubiquitin ligase, and then discuss SCFβ-TrCP ubiquitin ligase regulated biological processes by targeting its substrates for degradation. Moreover, we summarize the regulation of β-TrCP1 and β-TrCP2 at multiple layers and further discuss the various roles of β-TrCP1 and β-TrCP2 in human cancer, functioning as either an oncoprotein or a tumor suppressor in a manner dependent of cellular context. Finally, we provide novel insights for future perspectives on the potential of targeting β-TrCP1 and β-TrCP2 for cancer therapy.
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Affiliation(s)
- Yanli Bi
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Danrui Cui
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiufang Xiong
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Institute of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yongchao Zhao
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
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Cai N, Chen Z, Huang Y, Shao S, Yu H, Wang Y, He S. β-TrCP1 promotes cell proliferation via TNF-dependent NF-κB activation in diffuse large B cell lymphoma. Cancer Biol Ther 2019; 21:241-247. [PMID: 31731887 DOI: 10.1080/15384047.2019.1683332] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Diffuse large B cell lymphoma (DLBCL), a heterogeneous group of invasive disease, is the most common type of B-cell non-Hodgkin's lymphomas. The mechanism of its development is closely related to the constitutive activation of NF-κB. In this study, we investigated the function and the mechanism of β-TRCP1 in DLBCL. CCK8 and EdU assays showed that β-TRCP1 could promote the growth of DLBCL cells under the stimulation of TNFα. Furthermore, overexpression of β-TRCP1 enhanced NF-κB activation in the presence of TNFα. Moreover, ectopic expression of β-TRCP1 decreased IκB-α expression but increased phospho-p65 expression. In addition, β-TRCP1 promoted cell cycle progression by accelerating G1-S phase transition. We also found that silencing of β-TrCP1 increased mitoxantrone-induced cell growth arrest and apoptosis. Based on these, we proposed that the expression of β-TRCP1 promoted cell proliferation via TNF-dependent NF-κB activation in DLBCL cells.
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Affiliation(s)
- Nannan Cai
- Department of Pathogenic Biology, Medical College, Nantong University, Nantong, Jiangsu, People's Republic of China.,Department of Pathology, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China.,Department of gynaecology and obstetrics, Nantong Tongzhou People's Hospital, Nantong, Jiangsu, China
| | - Zhuolin Chen
- Department of Pathology, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Yuejiao Huang
- Department of Pathology, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Shan Shao
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Haiyan Yu
- Department of Pathology, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Yuchan Wang
- Department of Pathogenic Biology, Medical College, Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Song He
- Department of Pathology, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China
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