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Tian X, Guo M, Zhang X, Guo L, Lan N, Cheng Y, Han Y, Wang M, Peng Z, Zhou C, Fan H. Strongylocentrotus nudus Eggs Polysaccharide Enhances Macrophage Phagocytosis Against E.coli Infection by TLR4/STAT3 Axis. Front Pharmacol 2022; 13:807440. [PMID: 35370674 PMCID: PMC8968116 DOI: 10.3389/fphar.2022.807440] [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: 11/02/2021] [Accepted: 02/02/2022] [Indexed: 12/04/2022] Open
Abstract
Antibiotics resistance is one of the most significant public health threats globally. Strategies that strengthen host defenses to control pathogen infection has become a hot research field. Macrophages are part of early host defense mechanisms, and are activated via host pattern recognition receptors (PRRs), such as Toll-like receptor 4 (TLR4), which then facilitates phagocytosis and elimination of invading pathogens. However, few activators of PRRs have been approved for clinical use because of their toxic effects. This study aimed to investigate whether Strongylocentrotus nudus eggs polysaccharide (SEP), a non-toxic extract from seafood, contributes to host defense against bacterial infection. Results showed that SEP promoted bacterial clearance by enhancing phagocytosis by macrophages during E. coli infection in vitro, but was inhibited by TLR4 specific inhibitor TAK-242, STAT3 inhibitor Stattic or blockade of CD64. In addition, SEP protected mice from E. coli induced mortality, reduced pulmonary inflammation and inhibited dissemination of bacteria to organs, while TAK-242 retarded the protection of SEP. Overall, SEP strengthened innate host defense and improved the outcome in bacterial infection, suggesting that SEP could be used as a potential immunomodulator in host-directed therapies.
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Affiliation(s)
- Xinlei Tian
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Min Guo
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Xiaoya Zhang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Lingfeng Guo
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Nan Lan
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yaojun Cheng
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yannan Han
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Mingxin Wang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Zhonglu Peng
- School of Pharmacy, Xiangnan University, Chenzhou, China
| | - Changlin Zhou
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Hongye Fan
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
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Lei W, Liu D, Sun M, Lu C, Yang W, Wang C, Cheng Y, Zhang M, Shen M, Yang Z, Chen Y, Deng C, Yang Y. Targeting STAT3: A crucial modulator of sepsis. J Cell Physiol 2021; 236:7814-7831. [PMID: 33885157 DOI: 10.1002/jcp.30394] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 03/14/2021] [Accepted: 04/05/2021] [Indexed: 12/12/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) is a cellular signal transcription factor that has recently attracted a great deal of attention. It can trigger a variety of genes transcription in response to cytokines and growth factors stimulation, which plays an important role in many cellular biological processes involved in anti/proinflammatory responses. Sepsis is a life-threatening organ dysfunction resulting from dysregulated host responses to infection. As a converging point of multiple inflammatory responses pathways, accumulating studies have presented the elaborate network of STAT3 in sepsis pathophysiology; these results generally indicate a promising therapeutic application for targeting STAT3 in the treatment of sepsis. In the present review, we evaluated the published literature describing the use of STAT3 in the treatment of experimental and clinical sepsis. The information presented here may be useful for the design of future studies and may highlight the potential of STAT3 as a future biomarker and therapeutic target for sepsis.
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Affiliation(s)
- Wangrui Lei
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Dianxiao Liu
- Department of Cardiac Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Meng Sun
- Department of Cardiology, The First Hospital of Shanxi Medical University, Taiyuan, China
| | - Chenxi Lu
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Wenwen Yang
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Changyu Wang
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China.,Department of Cardiology, School of Life Sciences and Medicine, Xi'an No.3 Hospital, Northwest University, Xi'an, China
| | - Ye Cheng
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Meng Zhang
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Mingzhi Shen
- Hainan Hospital of PLA General Hospital, The Second School of Clinical Medicine, Southern Medical University, Sanya, Hainan, China
| | - Zhi Yang
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Yin Chen
- Department of Hematology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Chao Deng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yang Yang
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China
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Juusola M, Kuuliala K, Kuuliala A, Mustonen H, Vähä-Koskela M, Puolakkainen P, Seppänen H. Pancreatic cancer is associated with aberrant monocyte function and successive differentiation into macrophages with inferior anti-tumour characteristics. Pancreatology 2021; 21:397-405. [PMID: 33461933 DOI: 10.1016/j.pan.2020.12.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 12/16/2020] [Accepted: 12/31/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Inflammation is related to the development and progression of pancreatic cancer (PC). Locally, anti-inflammatory macrophages (M2), and systemically, high levels of certain inflammation-modulating cytokines associate with poor prognosis in PC. The detailed effects of systemic inflammation on circulating monocytes and macrophage polarisation remain unknown. We aimed to find out how intracellular signalling of peripheral blood monocytes is affected by the systemic inflammatory state in PC patients and how it affects their differentiation into macrophages. METHODS Monocytes were isolated from 50 consenting PC patients and 20 healthy controls (HC). The phosphorylation status of the signalling molecules was assessed by flow cytometry both from unstimulated and appropriately stimulated monocytes. Monocytes derived from HC and PC patients were co-cultured with cancer cells (MIA PaCa-2 and HPAF-II) in media supplemented with autologous serum, and the CD marker expression of the obtained macrophages was assessed by flow cytometry. RESULTS Phosphorylation levels of unstimulated STAT2, STAT3 and STAT6 were higher (p < 0.05) and those of stimulated NF-kB (p = 0.004) and STAT5 (p = 0.006) were lower in patients than in controls. The expression of CD86, a proinflammatory (M1) marker, was higher in control- than patient-derived co-cultured macrophages (p = 0.029). CONCLUSIONS Circulating monocytes from PC patients showed constitutive phosphorylation and weaker response to stimuli, indicating aberrant activation and immune suppression. When co-culturing the patient-derived monocytes with cancer cells, they differentiated into macrophages with reduced levels of M1 macrophage marker CD86, suggesting compromised anti-tumour features. The results highlight the need for global management of tumour-associated immune aberrations in PC treatment.
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Affiliation(s)
- Matilda Juusola
- Department of Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; Translational Cancer Medicine Research Program, University of Helsinki, Helsinki, Finland.
| | - Krista Kuuliala
- Department of Bacteriology and Immunology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Antti Kuuliala
- Department of Bacteriology and Immunology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Harri Mustonen
- Department of Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | | | - Pauli Puolakkainen
- Department of Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; Translational Cancer Medicine Research Program, University of Helsinki, Helsinki, Finland
| | - Hanna Seppänen
- Department of Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; Translational Cancer Medicine Research Program, University of Helsinki, Helsinki, Finland
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Infectious Complications of Acute Pancreatitis Is Associated with Peripheral Blood Phagocyte Functional Exhaustion. Dig Dis Sci 2021; 66:121-130. [PMID: 32170475 DOI: 10.1007/s10620-020-06172-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 02/24/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Infected pancreatic necrosis is one of the most severe complications of acute pancreatitis (AP). The development of secondary infection doubles the risk of death during the late stage of necrotizing pancreatitis. Phagocytes play a major role in AP pathogenesis, as well as in local and systemic complications of the disease. AIMS We aimed to investigate the relationship between quantitative and functional indices of circulating phagocyte at the time of admission and onset of infectious complications in patients with AP afterward. METHODS A post hoc analysis of 97 patients with AP was conducted. The metabolic state of peripheral blood neutrophils and monocytes was analyzed based on their phagocytic activity and generation of reactive oxygen species (ROS), which were determined by flow cytometry on admission. The clinical end point was marked by onset of infectious complications of AP. RESULTS On admission, baseline values and reactivity reserve of monocyte and neutrophil phagocytic activity in AP patients, who developed septic complications, were substantially decreased, whereas monocyte ROS generation was dramatically increased as compared to the group without infectious processes. ROC curve was obtained both for neutrophil and monocyte phagocytosis reactivity reserve expressed as modulation coefficient values and categorized as the risk factor of infectious complications, showing an area under curve of 0.95 (P < 0.0001) and 0.84 (P < 0.0001), respectively. CONCLUSIONS Early (at the time of admission) detection of quantitative and functional indices of circulating phagocytes can be useful for the prediction of septic complications in SAP patients.
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Blood Leukocyte Signaling Pathways as Predictors of Severity of Acute Pancreatitis. Pancreas 2021; 50:710-718. [PMID: 34016897 PMCID: PMC8195735 DOI: 10.1097/mpa.0000000000001832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVES Clinical practice lacks biomarkers to predict the severity of acute pancreatitis (AP). We studied if intracellular signaling of circulating leukocytes could predict persistent organ dysfunction (OD) and secondary infections in AP. METHODS A venous blood sample was taken from 174 patients with AP 72 hours or less from onset of symptoms and 31 healthy controls. Phosphorylation levels (p) of appropriately stimulated signal transducer and activator of transcription 1 (STAT1), STAT6, nuclear factor-κB (NF-κB), Akt, and nonstimulated STAT3 in monocytes, neutrophils, and lymphocytes was measured using phosphospecific flow cytometry. RESULTS The patients showed higher pSTAT3 and lower pSTAT1, pSTAT6, pNF-κB, and pAkt than healthy controls. pSTAT3 in all leukocyte subtypes studied increased, and pSTAT1 in monocytes and T cells decreased in an AP severity-wise manner. In patients without OD at sampling, high pSTAT3 in monocytes and T lymphocytes were associated with development of persistent OD. In patients with OD, low interleukin-4-stimulated pSTAT6 in monocytes and neutrophils and Escherichia coli-stimulated pNF-κB in neutrophils predicted OD persistence. High pSTAT3 in monocytes, CD8+ T cells, and neutrophils; low pSTAT1 in monocytes and T cells; and low pNF-κB in lymphocytes predicted secondary infections. CONCLUSIONS Leukocyte STAT3, STAT1, STAT6, and NF-κΒ phosphorylations are potential predictors of AP severity.
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El Morsy EM, Ahmed MA. Carvedilol attenuates l-arginine induced acute pancreatitis in rats through modulation of oxidative stress and inflammatory mediators. Chem Biol Interact 2020; 327:109181. [DOI: 10.1016/j.cbi.2020.109181] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 05/29/2020] [Accepted: 06/15/2020] [Indexed: 12/18/2022]
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Wang T, Zhong H, Zhang W, Wen J, Yi Z, Li P, Gong J. STAT5a induces endotoxin tolerance by alleviating pyroptosis in kupffer cells. Mol Immunol 2020; 122:28-37. [PMID: 32298872 DOI: 10.1016/j.molimm.2020.03.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 12/15/2022]
Abstract
Pyroptosis, a newly discovered type of programmed cell death, affects endotoxin tolerance in macrophages. However, the factors acting on the nod-like receptor 3 (Nlrp3) inflammasome and caspase1 activation to impede pyroptosis and resulting in tolerance and survival in sepsis were needed to discovered. Here, we found that signal transducer and activator of transcription 5A (STAT5a) restrains pyroptosis in Kupffer cells (KCs) and induces endotoxin tolerance (ET) in a sepsis model. The lentiviral knockdown of STAT5a led to enhanced pyroptosis in KCs, increased IL-1β production and decreased IL-10 production via intricate NF-κb signaling regulation. Thus, our findings reveal a novel mechanism of STAT5a-midiated endotoxin tolerance in KCs.
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Affiliation(s)
- Tao Wang
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Hua Zhong
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Chongqing Medical University, 400010, China
| | - Wenfeng Zhang
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Jian Wen
- Department of Hepatobiliary Surgery, the Affiliated Hospital of Southwest Medical University, 646000, China
| | - Zhujun Yi
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Peizhi Li
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Jianping Gong
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China.
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Turunen A, Kuuliala A, Penttilä A, Kaukonen KM, Mustonen H, Pettilä V, Puolakkainen P, Kylänpää L, Kuuliala K. Time course of signaling profiles of blood leukocytes in acute pancreatitis and sepsis. Scandinavian Journal of Clinical and Laboratory Investigation 2019; 80:114-123. [PMID: 31833422 DOI: 10.1080/00365513.2019.1700548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Activation of intracellular signaling pathways in circulating leukocytes represents an early step in systemic immune-inflammatory response occurring e.g. in acute pancreatitis (AP) and sepsis. Previously, we found aberrations in the phosphorylation of leukocyte signaling proteins in patients with sepsis or AP (measured <48 h from hospital admission) resembling each other and associating with AP severity. Of these patients, those with sepsis or severe AP complicated by persistent organ dysfunction (OD+, n = 17) and patients with moderately severe AP (OD-, n = 6) were followed up in this study by measuring the phosphorylations at two additional time points (2-4 and 5-8 days after the initial sample) using phosphospecific whole blood flow cytometry. Twenty-eighty healthy subjects served as controls (HC). Constitutive STAT3 phosphorylation (pSTAT3) declined in monocytes and neutrophils of OD-/OD + and in lymphocytes of OD + and remained higher in OD- than HC. Monocytes of OD-/OD + showed low pSTAT3 and pSTAT1 levels in response to IL-6 through follow-up. Monocyte pNF-κB levels in response to TNF, LPS and E. coli in OD+, to E. coli in OD-, and lymphocyte pNF-κB levels in response to TNF in OD- increased during follow-up but remained lower than in HC, and neutrophil pNF-κB levels in response to TNF declined in OD-. Phorbol myristate acetate + Ca2+ ionophore-stimulated pERK1/2 decreased in neutrophils of OD-/OD+. To conclude, in patients with moderately severe or severe AP or sepsis, improvement and molecular events contributing to OD can be assessed at the level of blood leukocyte signaling.
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Affiliation(s)
- Antti Turunen
- Department of Abdominal Surgery, Abdominal Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Antti Kuuliala
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Anne Penttilä
- Department of Abdominal Surgery, Abdominal Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Kirsi-Maija Kaukonen
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Harri Mustonen
- Department of Abdominal Surgery, Abdominal Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Ville Pettilä
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pauli Puolakkainen
- Department of Abdominal Surgery, Abdominal Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Leena Kylänpää
- Department of Abdominal Surgery, Abdominal Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Krista Kuuliala
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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Gao Y, Zhao H, Wang P, Wang J, Zou L. The roles of SOCS3 and STAT3 in bacterial infection and inflammatory diseases. Scand J Immunol 2018; 88:e12727. [PMID: 30341772 DOI: 10.1111/sji.12727] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/11/2018] [Accepted: 10/13/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Yu Gao
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
- Department of Microbiology, Tumor and Cell Biology; Karolinska Institutet; Stockholm Sweden
| | - Honglei Zhao
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
- Department of Oncology-Pathology; Karolinska Institutet; Stockholm Sweden
| | - Peng Wang
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
| | - Jun Wang
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
| | - Lili Zou
- Translational Neuroscience & Neural Regeneration and Repair Institute/Institute of Cell Therapy; The People's Hospital of China Three Gorges University; Yichang China
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