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Li G, Hu L, Gu X, Zhu W, Zhen X, Sun X. Targeting Large-Conductance Calcium-Activated Potassium Channels to Ameliorate Lipopolysaccharide-Induced Depressive-Like Behavior in Mice. Neurochem Res 2024; 49:1239-1253. [PMID: 38383879 DOI: 10.1007/s11064-024-04111-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/23/2024]
Abstract
Neuroinflammation plays crucial role in the development and progression of depression. Large conductance calcium- and voltage-dependent potassium (BK) channels mediate the activation of microglia. Herein, we investigated whether BK channels could serve as a target for the treatment of inflammation-associated depression. Lipopolysaccharide (LPS, 0.83 mg/kg) was injected intraperitoneally (i.p.) to induce neuroinflammation and depressive-like behavior in 6-8 week ICR mice. Adeno-associated virus (AAV) constructs (AAV9-Iba1p-BK shRNA-EGFP (BK shRNA-AAV) or AAV9-Iba1p-NC shRNA-EGFP (NC shRNA-AAV)) were unilaterally injected intracerebroventricularly to selectively knock down BK channels in microglia. The tail suspension test (TST) and forced-swim test (FST) were used to evaluate depressive-like behavior in mice 24 h after LPS challenge. The morphology of microglia, expression of BK channels, levels of cytokines, and expression and activity of indoleamine 2,3-dioxygenase (IDO) were measured by immunohistochemistry, western blot, quantitative real time PCR, and enzyme-linked immunosorbent assay (ELISA), respectively. Either paxilline (i.p.), a specific BK channel blocker, or BK shRNA-AAV effectively inhibited the activation of microglia, reduced the production of IL-1β in the hippocampus and suppressed the expression and activity of IDO in the hippocampus and prefrontal cortex, resulting in the amelioration of depressive-like behavior in mice. These data suggest for the first time that BK channels are involved in LPS-induced depressive-like behaviors. Thus, microglia BK channels may be a potential drug target for the depression treatment.
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Affiliation(s)
- Gangjing Li
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Li Hu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Xiangcheng Gu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Weijun Zhu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Xuechu Zhen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Xiaohui Sun
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
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Hu J, Wang Z, Gong B, Feng L, Song Y, Zhang S, Wang L, Qu Y, Li G, Zhang L, Zheng C, Du F, Li P, Wang Y. IFN-γ promotes radioresistant Nestin-expressing progenitor regeneration in the developing cerebellum by augmenting Shh ligand production. CNS Neurosci Ther 2024; 30:e14485. [PMID: 37789668 PMCID: PMC10805445 DOI: 10.1111/cns.14485] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/05/2023] [Accepted: 09/18/2023] [Indexed: 10/05/2023] Open
Abstract
BACKGROUND Patients with brain tumors, especially pediatric brain tumors such as cerebellar medulloblastoma, always suffer from the severe side effects of radiotherapy. Regeneration of neural cells in irradiation-induced cerebellar injury has been reported, but the underlying mechanism remains elusive. METHODS We established an irradiation-induced developing cerebellum injury model in neonatal mice. Microarray, KEGG analysis and semi in vivo slice culture were performed for mechanistic study. RESULTS Nestin-expressing progenitors (NEPs) but not granule neuron precursors (GNPs) were resistant to irradiation and able to regenerate after irradiation. NEPs underwent less apoptosis but similar DNA damage following irradiation compared with GNPs. Subsequently, they started to proliferate and contributed to granule neurons regeneration dependent on the sonic hedgehog (Shh) pathway. In addition, irradiation increased Shh ligand provided by Purkinje cells. And microglia accumulated in the irradiated cerebellum producing more IFN-γ, which augmented Shh ligand production to promote NEP proliferation. CONCLUSIONS NEP was radioresistant and regenerative. IFN-γ was increased post irradiation to upregulate Shh ligand, contributing to NEP regeneration. Our study provides insight into the mechanisms of neural cell regeneration in irradiation injury of the developing cerebellum and will help to develop new therapeutic targets for minimizing the side effects of radiotherapy for brain tumors.
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Affiliation(s)
- Jian Hu
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Zixuan Wang
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Biao Gong
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Liyuan Feng
- Department of Pharmacognosy and Traditional Chinese Pharmacology, College of PharmacyArmy Medical UniversityChongqingChina
| | - Yan Song
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Shuo Zhang
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Lin Wang
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Yanghui Qu
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Gen Li
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Li Zhang
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Chaonan Zheng
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Fang Du
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Peng Li
- Department of Pharmacognosy and Traditional Chinese Pharmacology, College of PharmacyArmy Medical UniversityChongqingChina
| | - Yuan Wang
- Pediatric Cancer Center, Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
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Wang X, Hu Z, Zhang W, Wu S, Hao Y, Xiao X, Li J, Yu X, Yang C, Wang J, Zhang H, Ma F, Shi W, Wang J, Lei X, Zhang X, He S. Inhibition of lysosome-tethered Ragulator-Rag-3D complex restricts the replication of Enterovirus 71 and Coxsackie A16. J Cell Biol 2023; 222:e202303108. [PMID: 37906052 PMCID: PMC10619577 DOI: 10.1083/jcb.202303108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/10/2023] [Accepted: 09/21/2023] [Indexed: 11/02/2023] Open
Abstract
Enterovirus 71 (EV71) and Coxsackie A16 (CVA16) are two major causative agents of hand, foot, and mouth disease (HFMD) in young children. However, the mechanisms regulating the replication and pathogenesis of EV71/CVA16 remain incompletely understood. We performed a genome-wide CRISPR-Cas9 knockout screen and identified Ragulator as a mediator of EV71-induced apoptosis and pyroptosis. The Ragulator-Rag complex is required for EV71 and CVA16 replication. Upon infection, the Ragulator-Rag complex recruits viral 3D protein to the lysosomal surface through the interaction between 3D and RagB. Disruption of the lysosome-tethered Ragulator-Rag-3D complex significantly impairs the replication of EV71/CVA16. We discovered a novel EV71 inhibitor, ZHSI-1, which interacts with 3D and significantly reduces the lysosomal tethering of 3D. ZHSI-1 treatment significantly represses replication of EV71/CVA16 as well as virus-induced pyroptosis associated with viral pathogenesis. Importantly, ZHSI-1 treatment effectively protects against EV71 infection in neonatal and young mice. Thus, our study indicates that targeting lysosome-tethered Ragulator-Rag-3D may be an effective therapeutic strategy for HFMD.
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Affiliation(s)
- Xinhui Wang
- State Key Laboratory of Common Mechanism Research for Major Diseases, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Suzhou, China
| | - Zhilin Hu
- Cyrus Tang Hematology Center and Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Wei Zhang
- State Key Laboratory of Common Mechanism Research for Major Diseases, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Suzhou, China
| | - Shuwei Wu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yongjin Hao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Xia Xiao
- National Health Commission Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, Institute of Pathogen Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Respiratory Disease Pathogenomics, Chinese Academy of Medical Sciences, Beijing, China
| | - Jingjing Li
- State Key Laboratory of Common Mechanism Research for Major Diseases, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Suzhou, China
| | - Xiaoliang Yu
- State Key Laboratory of Common Mechanism Research for Major Diseases, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Suzhou, China
| | - Chengkui Yang
- State Key Laboratory of Common Mechanism Research for Major Diseases, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Suzhou, China
| | - Jingfeng Wang
- State Key Laboratory of Common Mechanism Research for Major Diseases, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Suzhou, China
| | - Huiying Zhang
- State Key Laboratory of Common Mechanism Research for Major Diseases, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Suzhou, China
| | - Feng Ma
- National Key Laboratory of Immunity and Inflammation, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Suzhou, China
| | - Weifeng Shi
- Department of Laboratory Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Jianwei Wang
- National Health Commission Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, Institute of Pathogen Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Respiratory Disease Pathogenomics, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaobo Lei
- National Health Commission Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, Institute of Pathogen Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Respiratory Disease Pathogenomics, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaohu Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Sudan He
- State Key Laboratory of Common Mechanism Research for Major Diseases, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Suzhou, China
- Cyrus Tang Hematology Center and Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
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Shen WH, Zhou LL, Li XP, Cong RP, Huang QY, Zheng LP, Wang JW. Bamboo polysaccharides elicit hypocrellin A biosynthesis of a bambusicolous fungus Shiraia sp. S9. World J Microbiol Biotechnol 2023; 39:341. [PMID: 37828354 DOI: 10.1007/s11274-023-03789-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 10/02/2023] [Indexed: 10/14/2023]
Abstract
Hypocrellin A (HA), a fungal perylenequinone from bambusicolous Shiraia species, is a newly developed photosensitizer for photodynamic therapy in cancer and other infectious diseases. The lower yield of HA is an important bottleneck for its biomedical application. This study is the first report of the enhancement of HA production in mycelium culture of Shiraia sp. S9 by the polysaccharides from its host bamboo which serve as a strong elicitor. A purified bamboo polysaccharide (BPSE) with an average molecular weight of 34.2 kDa was found to be the most effective elicitor to enhance fungal HA production and characterized as a polysaccharide fraction mainly composed of arabinose and galactose (53.7: 36.9). When BPSE was added to the culture at 10 mg/L on day 3, the highest HA production of 422.8 mg/L was achieved on day 8, which was about 4.0-fold of the control. BPSE changed the gene expressions mainly responsible for central carbon metabolism and the cellular oxidative stress. The induced generation of H2O2 and nitric oxide was found to be involved in both the permeabilization of cell membrane and HA biosynthesis, leading to enhancements in both intra- and extracellular HA production. Our results indicated the roles of plant polysaccharides in host-fungal interactions and provided a new elicitation technique to improve fungal perylenequinone production in mycelium cultures.
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Affiliation(s)
- Wen Hao Shen
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Lu Lu Zhou
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Xin Ping Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Rui Peng Cong
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Qun Yan Huang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Li Ping Zheng
- Department of Horticultural Sciences, Soochow University, Suzhou, 215123, China.
| | - Jian Wen Wang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.
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Lu YQ, Zeng Q, He HH, Zhang JS, Xie HP. Preparation of a shared chip for cell capturing and imaging with nanoparticle scaffold, nanogap and circulating tumor cell detection. Nanomedicine (Lond) 2023. [PMID: 37199307 DOI: 10.2217/nnm-2022-0303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023] Open
Abstract
Aim: To achieve accurate detection of circulating tumor cells (CTCs) in a large-volume sample. Materials & methods: Silica nanoparticles were crosslinked layer-by-layer on glass slides as the substrate of a chip using polyacrylic acid. Polyacrylic acid was immobilized as a spacer and capture ligands were immobilized on the spacer. Results: The chip can be integrally applied to capture, post-treatment and imaging detection for CTCs. The detected cell numbers were 33 and 40 for 9 cell/ml samples and clinical blood samples (7.5 ml), respectively. The detection ratio of positive samples was 100%. Conclusion: The significantly increased detected number for CTCs indicates that this methodology may avoid or greatly reduce the false-negative ratio of positive clinical samples.
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Affiliation(s)
- Yin-Qiu Lu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Qi Zeng
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
- Dushuhu Public Hospital Affiliated to Soochow University, Suzhou, 215123, China
| | - Huan-Huan He
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Jing-Shuo Zhang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Hong-Ping Xie
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
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Shen WH, Cong RP, Li XP, Huang QY, Zheng LP, Wang JW. Effects of branched-chain amino acids on Shiraia perylenequinone production in mycelium cultures. Microb Cell Fact 2023; 22:57. [PMID: 36964527 PMCID: PMC10039612 DOI: 10.1186/s12934-023-02066-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/21/2023] [Indexed: 03/26/2023] Open
Abstract
BACKGROUND Perylenequinones from Shiraia fruiting bodies are excellent photosensitizers and widely used for anti-cancer photodynamic therapy (PDT). The lower yield of Shiraia perylenequinones becomes a significant bottleneck for their medical application. Branched-chain amino acids (BCAAs) not only serve as important precursors for protein synthesis, but also are involved in signaling pathway in cell growth and development. However, there are few reports concerning their regulation of fungal secondary metabolism. In present study, the eliciting effects of BCAAs including L-isoleucine (L-Ile), L-leucine (L-Leu) and L-valine (L-Val) on Shiraia perylenequinone production were investigated. RESULTS Based on the analysis of the transcriptome and amino acid contents of Shiraia in the production medium, we revealed the involvement of BCAAs in perylenequinone biosynthesis. The fungal conidiation was promoted by L-Val treatment at 1.5 g/L, but inhibited by L-Leu. The spore germination was promoted by both. The production of fungal perylenequinones including hypocrellins A (HA), HC and elsinochromes A-C (EA-EC) was stimulated significantly by L-Val at 1.5 g/L, but sharply suppressed by L-Leu. After L-Val treatment (1.5 g/L) in Shiraia mycelium cultures, HA, one of the main bioactive perylenequinones reached highest production 237.92 mg/L, about 2.12-fold than that of the control. Simultaneously, we found that the expression levels of key genes involved in the central carbon metabolism and in the late steps for perylenequinone biosynthesis were up-regulated significantly by L-Val, but most of them were down-regulated by L-Leu. CONCLUSIONS Our transcriptome analysis demonstrated that BCAA metabolism was involved in Shiraia perylenequinone biosynthesis. Exogenous BCAAs exhibit contrasting effects on Shiraia growth and perylenequinones production. L-Val could promote perylenequinone biosynthesis via not only enhancing the central carbon metabolism for more precursors, but also eliciting perylenequinone biosynthetic gene expressions. This is the first report on the regulation of BCAAs on fungal perylenequinone production. These findings provided a basis for understanding physiological roles of BCAAs and a new avenue for increasing perylenequinone production in Shiraia mycelium cultures.
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Affiliation(s)
- Wen Hao Shen
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Rui Peng Cong
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Xin Ping Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Qun Yan Huang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Li Ping Zheng
- Department of Horticultural Sciences, Soochow University, Suzhou, 215123, China
| | - Jian Wen Wang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.
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