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Leslie J, Hunter JE, Collins A, Rushton A, Russell LG, Ramon‐Gil E, Laszczewska M, McCain M, Zaki MYW, Knox A, Seow Y, Sabater L, Geh D, Perkins ND, Reeves HL, Tiniakos D, Mann DA, Oakley F. c-Rel-dependent Chk2 signaling regulates the DNA damage response limiting hepatocarcinogenesis. Hepatology 2023; 78:1050-1063. [PMID: 36089330 PMCID: PMC10521790 DOI: 10.1002/hep.32781] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/08/2022] [Accepted: 09/08/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIMS Hepatocellular carcinoma (HCC) is a leading cause of cancer-related death. The NF-κB transcription factor family subunit c-Rel is typically protumorigenic; however, it has recently been reported as a tumor suppressor. Here, we investigated the role of c-Rel in HCC. APPROACH AND RESULTS Histological and transcriptional studies confirmed expression of c-Rel in human patients with HCC, but low c-Rel expression correlated with increased tumor cell proliferation and mutational burden and was associated with advanced disease. In vivo , global ( Rel-/- ) and epithelial specific ( RelAlb ) c-Rel knockout mice develop more tumors, with a higher proliferative rate and increased DNA damage, than wild-type (WT) controls 30 weeks after N-diethylnitrosamine injury. However, tumor burden was comparable when c-Rel was deleted in hepatocytes once tumors were established, suggesting c-Rel signaling is important for preventing HCC initiation after genotoxic injury, rather than for HCC progression. In vitro , Rel-/- hepatocytes were more susceptible to genotoxic injury than WT controls. ATM-CHK2 DNA damage response pathway proteins were suppressed in Rel-/- hepatocytes following genotoxic injury, suggesting that c-Rel is required for effective DNA repair. To determine if c-Rel inhibition sensitizes cancer cells to chemotherapy, by preventing repair of chemotherapy-induced DNA damage, thus increasing tumor cell death, we administered single or combination doxorubicin and IT-603 (c-Rel inhibitor) therapy in an orthotopic HCC model. Indeed, combination therapy was more efficacious than doxorubicin alone. CONCLUSION Hepatocyte c-Rel signaling limits genotoxic injury and subsequent HCC burden. Inhibiting c-Rel as an adjuvant therapy increased the effectiveness of DNA damaging agents and reduced HCC growth.
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Affiliation(s)
- Jack Leslie
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Jill E. Hunter
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Amy Collins
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Amelia Rushton
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Lauren G. Russell
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Erik Ramon‐Gil
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Maja Laszczewska
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Misti McCain
- Newcastle University Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Marco Y. W. Zaki
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
- Biochemistry Department, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Amber Knox
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Yixin Seow
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Laura Sabater
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Daniel Geh
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
- Department of Medicine, Freeman Hospital, Newcastle‐upon‐Tyne Hospitals NHS Foundation Trust, Newcastle‐upon‐Tyne, UK
| | - Neil D. Perkins
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Helen L. Reeves
- Newcastle University Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
- Department of Medicine, Freeman Hospital, Newcastle‐upon‐Tyne Hospitals NHS Foundation Trust, Newcastle‐upon‐Tyne, UK
| | - Dina Tiniakos
- Newcastle University Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
- Department of Pathology, Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Derek A. Mann
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
| | - Fiona Oakley
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle‐upon‐Tyne, UK
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Jiang J, Li W, Zhou L, Liu D, Wang Y, An J, Qiao S, Xie Z. Platelet ITGA2B inhibits caspase-8 and Rip3/Mlkl-dependent platelet death though PTPN6 during sepsis. iScience 2023; 26:107414. [PMID: 37554440 PMCID: PMC10404729 DOI: 10.1016/j.isci.2023.107414] [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: 05/17/2023] [Revised: 07/04/2023] [Accepted: 07/14/2023] [Indexed: 08/10/2023] Open
Abstract
Platelets play an important role in the pathogenesis of sepsis and platelet transfusion is a therapeutic option for sepsis patients, although the exact mechanisms have not been elucidated so far. ITGA2B encodes the αIIb protein in platelets, and its upregulation in sepsis is associated with increased mortality rate. Here, we generated a Itga2b (Q887X) knockin mouse, which significantly reduced ITGA2B expression of platelet and megakaryocyte. The decrease of ITGA2B level aggravated the death of septic mice. We analyzed the transcriptomic profiles of the platelets using RNA sequencing. Our findings suggest that ITGA2B upregulates PTPN6 in megakaryocytes via the transcription factors Nfkb1 and Rel. Furthermore, PTPN6 inhibits platelet apoptosis and necroptosis during sepsis by targeting the Ripk1/Ripk3/Mlkl and caspase-8 pathways. This prevents Kupffer cells from rapidly clearing activated platelets, and eventually maintains vascular integrity during sepsis. Our findings indicate a new function of ITGA2B in the regulation of platelet death during sepsis.
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Affiliation(s)
- Jiang Jiang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Wei Li
- Institute of Clinical Medicine Research, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, China
| | - Lu Zhou
- Hematology Department, Affiliated Hospital of Nantong University, Nantong, China
| | - Dengping Liu
- Suzhou Center for Disease Control and Prevention, Suzhou, China
| | - Yuanyuan Wang
- Department of Intensive Care Unit, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, China
| | - Jianzhong An
- Institute of Clinical Medicine Research, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, China
| | - Shigang Qiao
- Institute of Clinical Medicine Research, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, China
- Faculty of Anesthesiology, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, China
| | - Zhanli Xie
- Institute of Clinical Medicine Research, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, China
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Chen Y, Huang J, Guo Z, Zhu Z, Shao Y, Li L, Yang Y, Yu Y, Liu L, Sun B. Primitive genotypic characteristics in umbilical cord neutrophils identified by single-cell transcriptome profiling and functional prediction. Front Immunol 2022; 13:970909. [PMID: 36105817 PMCID: PMC9464600 DOI: 10.3389/fimmu.2022.970909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 07/15/2022] [Indexed: 11/17/2022] Open
Abstract
The function and heterogeneity of neutrophils in neonatal umbilical cord blood (UCB) have not been characterized. In this study, we analyzed the neutrophils in UCB and healthy adults using single-cell RNA sequencing analysis for the first time. We found that neutrophils divided into six subpopulations (G2, G3, G4, G5a, G5b, and G5c) with different marker genes and different functions under homeostasis. Compared with healthy adults, neutrophils of UCB were more naïve and have more obvious degranulation and activation functions. Moreover, we found significant differences in the amount and function of G5b cells between healthy adults and UCB. The amount of G5b group in UCB was lower, but it has more degranulation, secretion and activation functions. In addition, we noted a new subset of G5c labeled by CD52, which almost did not exist in UCB. Besides, its differential genes were enriched in terms such as protein synthesis and mRNA transcription. Furthermore, uncharacteristic transcription factors ZNF-276, ZNF-319 and ZNF-354A were identified in our study. In summary, we first examined the heterogeneity and functional diversity of neutrophils in UCB, and these data provided new insights into the mechanism of neutrophil-mediated diseases of neonates and the wider use of neutrophils in UCB.
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Affiliation(s)
- Yi Chen
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
- Department of Burns and Plastic Surgery, Affiliated Huaian No.1 People’s Hospital, Nanjing Medical University, Huai’an, China
| | - Jiamin Huang
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Zaiwen Guo
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Zhechen Zhu
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Yiming Shao
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Linbin Li
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Yunxi Yang
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Yanzhen Yu
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Lu Liu
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Bingwei Sun
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
- *Correspondence: Bingwei Sun,
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Ni Y, Low JT, Silke J, O'Reilly LA. Digesting the Role of JAK-STAT and Cytokine Signaling in Oral and Gastric Cancers. Front Immunol 2022; 13:835997. [PMID: 35844493 PMCID: PMC9277720 DOI: 10.3389/fimmu.2022.835997] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 05/16/2022] [Indexed: 12/12/2022] Open
Abstract
When small proteins such as cytokines bind to their associated receptors on the plasma membrane, they can activate multiple internal signaling cascades allowing information from one cell to affect another. Frequently the signaling cascade leads to a change in gene expression that can affect cell functions such as proliferation, differentiation and homeostasis. The Janus kinase-signal transducer and activator of transcription (JAK-STAT) and the tumor necrosis factor receptor (TNFR) are the pivotal mechanisms employed for such communication. When deregulated, the JAK-STAT and the TNF receptor signaling pathways can induce chronic inflammatory phenotypes by promoting more cytokine production. Furthermore, these signaling pathways can promote replication, survival and metastasis of cancer cells. This review will summarize the essentials of the JAK/STAT and TNF signaling pathways and their regulation and the molecular mechanisms that lead to the dysregulation of the JAK-STAT pathway. The consequences of dysregulation, as ascertained from founding work in haematopoietic malignancies to more recent research in solid oral-gastrointestinal cancers, will also be discussed. Finally, this review will highlight the development and future of therapeutic applications which modulate the JAK-STAT or the TNF signaling pathways in cancers.
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Affiliation(s)
- Yanhong Ni
- Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jun T Low
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - John Silke
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Lorraine A O'Reilly
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
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