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Wang F, Song H, Xu F, Xu J, Wang L, Yang F, Zhu Y, Tan G. Role of hepatitis B virus non-structural protein HBx on HBV replication, interferon signaling, and hepatocarcinogenesis. Front Microbiol 2023; 14:1322892. [PMID: 38188582 PMCID: PMC10767994 DOI: 10.3389/fmicb.2023.1322892] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/07/2023] [Indexed: 01/09/2024] Open
Abstract
Hepatitis B, a global health concern caused by the hepatitis B virus (HBV), infects nearly 2 billion individuals worldwide, as reported by the World Health Organization (WHO). HBV, a hepatotropic DNA virus, predominantly targets and replicates within hepatocytes. Those carrying the virus are at increased risk of liver cirrhosis and hepatocellular carcinoma, resulting in nearly 900,000 fatalities annually. The HBV X protein (HBx), encoded by the virus's open reading frame x, plays a key role in its virulence. This protein is integral to viral replication, immune modulation, and liver cancer progression. Despite its significance, the precise molecular mechanisms underlying HBx remain elusive. This review investigates the HBx protein's roles in HBV replication, interferon signaling regulation, and hepatocellular carcinoma progression. By understanding the complex interactions between the virus and its host mediated by HBx, we aim to establish a solid foundation for future research and the development of HBx-targeted therapeutics.
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Affiliation(s)
- Fei Wang
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hongxiao Song
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Fengchao Xu
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Jing Xu
- Health Examination Center, The First Hospital of Jilin University, Changchun, China
| | - Le Wang
- Department of Hepatology, The First Hospital of Jilin University, Changchun, China
| | - Fan Yang
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yujia Zhu
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Guangyun Tan
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
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2
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Fan X, Wang F, Song H, Xu F, Li X, Wei Q, Lei B, Wang Z, Wang Y, Tan G. Baicalin inhibits the replication of the hepatitis B virus by targeting TRIM25. J Tradit Complement Med 2023; 13:561-567. [PMID: 38020548 PMCID: PMC10658301 DOI: 10.1016/j.jtcme.2023.05.009] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/20/2023] [Accepted: 05/30/2023] [Indexed: 12/01/2023] Open
Abstract
Objective Baicalin, which is a key bioactive constituent obtained from Scutellaria baicalensis, has been utilized in traditional Chinese medicine for many centuries. Although it has been reported that Baicalin (BA) can inhibit the replication of the Hepatitis B virus (HBV), the exact mechanism behind this process remains unclear. Interferon-stimulated genes (ISGs) are crucial in the process of antiviral defense. We aim to investigate whether BA can regulate the expression of ISGs, and thereby potentially modulate the replication of HBV. Methods The study involved the use of CRISPR/Cas9 technology to perform knockout experiments on TRIM25 and IFIT3 genes. The expression of these genes was confirmed through techniques such as immunoblotting or Q-PCR. The levels of HBsAg and HBeAg were measured using ELISA, and the expression of interferon-stimulated genes was detected using a luciferase assay. Results It is interesting to note that several ISGs belonging to the TRIM family, including TRIM5, TRIM25, and TRIM14, were induced after BA treatment. On the other hand, members of the IFIT family were reduced by BA stimulation. Additionally, BA-mediated HBV inhibition was found to be significantly restored in HepG2 cells where TRIM25 was knocked out. Additional research into the mechanism of action of BA found that prolonged treatment with BA activated the JAK/STAT signaling pathway while simultaneously inhibiting the NF-kB pathway. Conclusion The findings of our study indicate that TRIM25 has a significant impact on the regulation of HBV replication following BA treatment, providing additional insight into the mechanisms by which BA exerts its antiviral effects.
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Affiliation(s)
- Xixi Fan
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China, 130000
- Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Fei Wang
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China, 130000
| | - Hongxiao Song
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China, 130000
| | - Fengchao Xu
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China, 130000
| | - Xiaolu Li
- Department of Pediatric Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Qi Wei
- Department of Anesthesiology, The First Hospital, Jilin University, Changchun, 130000, Jilin, China
| | - Bingxin Lei
- Department of Anesthesiology, The First Hospital, Jilin University, Changchun, 130000, Jilin, China
| | - Zhongnan Wang
- Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Yue Wang
- Department of Pediatric Hematology, The First Hospital, Jilin University, Changchun, 130000, Jilin, China
| | - Guangyun Tan
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China, 130000
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3
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Asadollahi R, Delvendahl I, Muff R, Tan G, Rodríguez DG, Turan S, Russo M, Oneda B, Joset P, Boonsawat P, Masood R, Mocera M, Ivanovski I, Baumer A, Bachmann-Gagescu R, Schlapbach R, Rehrauer H, Steindl K, Begemann A, Reis A, Winkler J, Winner B, Müller M, Rauch A. Pathogenic SCN2A variants cause early-stage dysfunction in patient-derived neurons. Hum Mol Genet 2023; 32:2192-2204. [PMID: 37010102 PMCID: PMC10281746 DOI: 10.1093/hmg/ddad048] [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: 11/14/2022] [Revised: 02/23/2023] [Accepted: 03/19/2023] [Indexed: 04/04/2023] Open
Abstract
Pathogenic heterozygous variants in SCN2A, which encodes the neuronal sodium channel NaV1.2, cause different types of epilepsy or intellectual disability (ID)/autism without seizures. Previous studies using mouse models or heterologous systems suggest that NaV1.2 channel gain-of-function typically causes epilepsy, whereas loss-of-function leads to ID/autism. How altered channel biophysics translate into patient neurons remains unknown. Here, we investigated iPSC-derived early-stage cortical neurons from ID patients harboring diverse pathogenic SCN2A variants [p.(Leu611Valfs*35); p.(Arg937Cys); p.(Trp1716*)] and compared them with neurons from an epileptic encephalopathy (EE) patient [p.(Glu1803Gly)] and controls. ID neurons consistently expressed lower NaV1.2 protein levels. In neurons with the frameshift variant, NaV1.2 mRNA and protein levels were reduced by ~ 50%, suggesting nonsense-mediated decay and haploinsufficiency. In other ID neurons, only protein levels were reduced implying NaV1.2 instability. Electrophysiological analysis revealed decreased sodium current density and impaired action potential (AP) firing in ID neurons, consistent with reduced NaV1.2 levels. In contrast, epilepsy neurons displayed no change in NaV1.2 levels or sodium current density, but impaired sodium channel inactivation. Single-cell transcriptomics identified dysregulation of distinct molecular pathways including inhibition of oxidative phosphorylation in neurons with SCN2A haploinsufficiency and activation of calcium signaling and neurotransmission in epilepsy neurons. Together, our patient iPSC-derived neurons reveal characteristic sodium channel dysfunction consistent with biophysical changes previously observed in heterologous systems. Additionally, our model links the channel dysfunction in ID to reduced NaV1.2 levels and uncovers impaired AP firing in early-stage neurons. The altered molecular pathways may reflect a homeostatic response to NaV1.2 dysfunction and can guide further investigations.
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Affiliation(s)
- R Asadollahi
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
- Faculty of Engineering and Science, University of Greenwich London, Medway Campus, Chatham Maritime ME4 4TB, UK
| | - I Delvendahl
- Department of Molecular Life Sciences, University of Zurich, Zurich 8057, Switzerland
- Neuroscience Center Zurich, University of Zurich, Zurich 8057, Switzerland
| | - R Muff
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - G Tan
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich 8057, Switzerland
| | - D G Rodríguez
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich 8057, Switzerland
| | - S Turan
- Department of Stem Cell Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - M Russo
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - B Oneda
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - P Joset
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - P Boonsawat
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - R Masood
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - M Mocera
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - I Ivanovski
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - A Baumer
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - R Bachmann-Gagescu
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - R Schlapbach
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich 8057, Switzerland
| | - H Rehrauer
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich 8057, Switzerland
| | - K Steindl
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - A Begemann
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
| | - A Reis
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - J Winkler
- Department of Molecular Neurology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
- Center for Rare Diseases Erlangen, University Hospital Erlangen, Erlangen 91054, Germany
| | - B Winner
- Department of Stem Cell Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
- Center for Rare Diseases Erlangen, University Hospital Erlangen, Erlangen 91054, Germany
| | - M Müller
- Department of Molecular Life Sciences, University of Zurich, Zurich 8057, Switzerland
- Neuroscience Center Zurich, University of Zurich, Zurich 8057, Switzerland
- University of Zurich Clinical Research Priority Program (CRPP) Praeclare – Personalized prenatal and reproductive medicine, Zurich 8006, Switzerland
- University of Zurich Research Priority Program (URPP) AdaBD: Adaptive Brain Circuits in Development and Learning, Zurich 8006, Switzerland
| | - A Rauch
- Institute of Medical Genetics, University of Zurich, Schlieren-Zurich 8952, Switzerland
- Neuroscience Center Zurich, University of Zurich, Zurich 8057, Switzerland
- University of Zurich Clinical Research Priority Program (CRPP) Praeclare – Personalized prenatal and reproductive medicine, Zurich 8006, Switzerland
- University of Zurich Research Priority Program (URPP) AdaBD: Adaptive Brain Circuits in Development and Learning, Zurich 8006, Switzerland
- University of Zurich Research Priority Program (URPP) ITINERARE: Innovative Therapies in Rare Diseases, Zurich 8006, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich 8057, Switzerland
- University Children's Hospital Zurich, University of Zurich, Zurich 8032, Switzerland
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Song H, Xiao Q, Xu F, Wei Q, Wang F, Tan G. TRIM25 inhibits HBV replication by promoting HBx degradation and the RIG-I-mediated pgRNA recognition. Chin Med J (Engl) 2023; 136:799-806. [PMID: 36975005 PMCID: PMC10150869 DOI: 10.1097/cm9.0000000000002617] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND The hepatitis B virus (HBV) vaccine has been efficiently used for decades. However, hepatocellular carcinoma caused by HBV is still prevalent globally. We previously reported that interferon (IFN)-induced tripartite motif-containing 25 (TRIM25) inhibited HBV replication by increasing the IFN expression, and this study aimed to further clarify the anti-HBV mechanism of TRIM25. METHODS The TRIM25-mediated degradation of hepatitis B virus X (HBx) protein was determined by detecting the expression of HBx in TRIM25-overexpressed or knocked-out HepG2 or HepG2-NTCP cells via Western blotting. Co-immunoprecipitation was performed to confirm the interaction between TRIM25 and HBx, and colocalization of TRIM25 and HBx was identified via immunofluorescence; HBV e-antigen and HBV surface antigen were qualified by using an enzyme-linked immunosorbent assay (ELISA) kit from Kehua Biotech. TRIM25 mRNA, pregenomic RNA (pgRNA), and HBV DNA were detected by quantitative real-time polymerase chain reaction. The retinoic acid-inducible gene I (RIG-I) and pgRNA interaction was verified by RNA-binding protein immunoprecipitation assay. RESULTS We found that TRIM25 promoted HBx degradation, and confirmed that TRIM25 could enhance the K90-site ubiquitination of HBx as well as promote HBx degradation by the proteasome pathway. Interestingly, apart from the Really Interesting New Gene (RING) domain, the SPRY domain of TRIM25 was also indispensable for HBx degradation. In addition, we found that the expression of TRIM25 increased the recognition of HBV pgRNA by interacting with RIG-I, which further increased the IFN production, and SPRY, but not the RING domain is critical in this process. CONCLUSIONS The study found that TRIM25 interacted with HBx and promoted HBx-K90-site ubiquitination, which led to HBx degradation. On the other hand, TRIM25 may function as an adaptor, which enhanced the recognition of pgRNA by RIG-I, thereby further promoting IFN production. Our study can contribute to a better understanding of host-virus interaction.
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Affiliation(s)
- Hongxiao Song
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130000, China
| | - Qingfei Xiao
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin 130000, China
| | - Fengchao Xu
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130000, China
| | - Qi Wei
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin 130000, China
| | - Fei Wang
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130000, China
| | - Guangyun Tan
- Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130000, China
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5
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Parsons ES, Liu F, Kaushik A, Lee A, Schuetz J, Dunham D, Seastedt H, Ogulur I, Heider A, Tan G, Shah A, Cao S, Smith E, Kost L, Acharya S, Prunicki M, Rothenberg M, Sindher S, Leib R, Akdis CA, Nadeau K, Lejeune S. Detection of gut and mucosal peptides through TOMAHAQ in healthy individuals. Allergy 2023. [PMID: 36872560 DOI: 10.1111/all.15698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/13/2023] [Accepted: 02/28/2023] [Indexed: 03/07/2023]
Affiliation(s)
- E S Parsons
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - F Liu
- Mass Spectrometry Center, Stanford University, Palo Alto, California, USA
| | - A Kaushik
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - A Lee
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - J Schuetz
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - D Dunham
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - H Seastedt
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - I Ogulur
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - A Heider
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - G Tan
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - A Shah
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - S Cao
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - E Smith
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - L Kost
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - S Acharya
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - M Prunicki
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA
| | - M Rothenberg
- Department of Pediatrics, Department of Allergy and Immunology, Cincinnati Children's Hospital, Cincinnati, Ohio, USA
| | - S Sindher
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA.,Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford University, Stanford, California, USA
| | - R Leib
- Mass Spectrometry Center, Stanford University, Palo Alto, California, USA
| | - C A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - K Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA.,Department of Environmental Health Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - S Lejeune
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, California, USA.,INSERM U1019, CNRS UMR 9017, Center for infection and immunity of Lille (CIIL), Univ. Lille, CHU Lille, Institut Pasteur de Lille, Lille, France
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6
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Song H, Huang Y, Li C, Liu Q, Tan G. Editorial: Interferon and its antiviral effect in response to HBV infection. Front Immunol 2023; 14:1135649. [PMID: 36817476 PMCID: PMC9933501 DOI: 10.3389/fimmu.2023.1135649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 01/16/2023] [Indexed: 02/05/2023] Open
Affiliation(s)
- Hongxiao Song
- Department of Hepatology, Infectious Diseases and Pathogen Biology Center, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yongye Huang
- College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Chunfeng Li
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA, United States
| | - Quan Liu
- Department of Infectious Diseases, Infectious Diseases and Pathogen Biology Center, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Guangyun Tan
- Department of Hepatology, Infectious Diseases and Pathogen Biology Center, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin, China,*Correspondence: Guangyun Tan,
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7
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Pang X, Song H, Li X, Xu F, Lei B, Wang F, Xu J, Qi L, Wang L, Tan G. Transcriptomic analyses of treatment-naïve pediatric ulcerative colitis patients and exploration of underlying disease pathogenesis. J Transl Med 2023; 21:30. [PMID: 36647141 PMCID: PMC9843999 DOI: 10.1186/s12967-023-03881-6] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/08/2023] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Ulcerative colitis (UC) is a form of chronic inflammatory bowel disease of nonspecific origin. This study used an RNA-Sequencing (RNA-Seq) approach to evaluate the transcriptomic landscape of a well-stratified treatment-naïve pediatric UC patient population by comparing them with healthy control children. The data were analyzed to evaluate the mechanisms driving UC-related intestinal inflammation and fibrosis. METHODS Intestinal mucosal samples from five pediatric UC patients and five healthy controls were analyzed by RNA-Seq, and results were verified by qPCR. A CRISPR/Cas9 approach was used to knock out the expression of HLA-DRB5, and molecular biology techniques were used for additional mechanistic studies. RESULTS In these analyses, 2290 genes were found to be differentially expressed between the UC and control samples, of which 1258 and 1032 were upregulated and downregulated, respectively. Gene Ontology analysis showed that these genes were enriched in extracellular matrix (ECM)-related processes and that 7 of 8 differentially expressed genes of interest (PIK3CD, IL1β, IL1α, TIMP1, MMP1, MMP12, COL6A3, and HLADRB5) were upregulated and involved in ECM-receptor interaction and inflammatory bowel disease-related pathways. Increased HLA-DRB5 expression driven by intestinal bacteria was found to promote IL-1α secretion, leading to intestinal inflammation and fibrosis, suggesting a possible target for the treatment of UC. CONCLUSION These data suggest that intestinal inflammation is present in pediatric UC patients for extended periods before the onset of symptoms, and intestinal fibrosis begins even during the early stages of UC. Intestinal bacteria were also found to trigger intestinal inflammation and fibrosis, with HLA-DRB5 playing a central role in this process.
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Affiliation(s)
- Xiaoli Pang
- grid.430605.40000 0004 1758 4110Department of Pediatric Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Hongxiao Song
- grid.430605.40000 0004 1758 4110Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin China
| | - Xiaolu Li
- grid.430605.40000 0004 1758 4110Department of Pediatric Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Fengchao Xu
- grid.430605.40000 0004 1758 4110Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin China
| | - Bingxun Lei
- grid.430605.40000 0004 1758 4110Department of Anesthesia, The First Hospital of Jilin University, Changchun, China
| | - Fei Wang
- grid.430605.40000 0004 1758 4110Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin China
| | - Jing Xu
- grid.430605.40000 0004 1758 4110Health Examination Center, The First Hospital of Jilin University, Changchun, China
| | - Lingli Qi
- grid.430605.40000 0004 1758 4110Department of Pediatric Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Libo Wang
- grid.430605.40000 0004 1758 4110Department of Pediatric Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Guangyun Tan
- grid.430605.40000 0004 1758 4110Department of Hepatology, Center for Pathogen Biology and Infectious Diseases, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin China
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8
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Nkonde C, Bell B, Tait A, Tan G, El-Zebdeh H, Yoshimatsu Y, Smithard DG. 1182 THE PREVALENCE OF ORAL FRAILTY AND ITS ASSOCIATION WITH DYSPHAGIA, FRAILTY AND FORMAL CARE NEEDS. Age Ageing 2023. [DOI: 10.1093/ageing/afac322.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Abstract
Introduction
Oral frailty (OF), gradual loss of oral function combined associated with presbyphagia often in conjunction with cognitive and physical decline, has been recommended to be considered as a geriatric giant. DENTAL has been suggested as a possible screening tool for OF. We have looked at the prevalence of OF and its association with dysphagia, frailty and formal care, amongst people admitted acutely to the acute medical/frailty wards in our hospital.
Methods
OF, dysphagia and frailty were screened for as part of the routine clinical assessment of patients during the usual clinical ward round. Screening tools used were DENTAL for OF, Rockwood Score for frailty and 4QT for dysphagia. Age, sex comorbidities and the need for formal care was documented.
Results
101 people were assessed over a 4-week period. Mean age was 84 years (65-99), 58 (57.4%) were female, 31(30.7%) were independent, 33 (32.6%) dementia, 57 (56.4%) frail, 54 (53.4%) had swallowing problems, and 34 (33.6%) OF. Of those with OF 97% had dysphagia, 88% were frail and 85% required formal care support (85%). OF was associated with dysphagia (p<0.0001), frailty (p< 0.0001), formal care support (p<0.05) and dementia (p<0.05). There was an association between needing care and frailty (p<0.01).
Conclusions
OF is associated with dysphagia, frailty and the need for formal care. OF may result in poor oral health and contribute to dysphagia and frailty, conversely frailty and dysphagia may result in poor oral health due to dependency and poor nutrition and dehydration. The associations are most likely be bidirectional. Further work is required to elucidate this. Clinical staff need to be aware of OF and oral health and include oral screening in their clinical assessment of an older adult.
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Affiliation(s)
- C Nkonde
- Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust
| | - B Bell
- Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust
| | - A Tait
- Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust
| | - G Tan
- Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust
| | - H El-Zebdeh
- Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust
| | - Y Yoshimatsu
- Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust
- University of Greenwich Centre for Exercise Activity and Rehabilitation,
| | - D G Smithard
- Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust
- University of Greenwich Centre for Exercise Activity and Rehabilitation,
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9
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Zhang C, Zhong X, Yi L, Zhao Z, Zhang Y, Tan G, Zhang Y, Zhang Y, Xu Y, Wu N. Exploring the Associations between Alzheimer's Disease and GBM Mediated by Microglia Based on Network Analysis. J Prev Alzheimers Dis 2023; 10:267-275. [PMID: 36946454 DOI: 10.14283/jpad.2023.23] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Previous studies have revealed that there existed epidemic associations between Alzheimer's disease (AD) and many types of tumors, however, the inner biological mechanism connecting these diseases was not clear currently. In this study, we explored the transcriptome associations between AD and glioblastoma multiforme (GBM) that both originate in the brain, using microglia as a bridge, from gene and network levels. Firstly, we extracted human scRNA sequencing datasets from Gene Expression Omnibus (GEO) database, and identified differentially expressed genes within microglia after cell annotation. It was observed that there were 11 common genes shared by AD and GBM dys-regulated genes. Next, we utilized DIAMOnD and Flow Centrality algorithms to identify microglia modules and mediating pathways connecting these two diseases based on global network topology. Among these candidate pathways, the mediating genes FURIN and BACE1 (from SPIKN5 to CSNK1A1) were not only related to the formation of amyloid beta plaques that accumulate in the brain of AD patients, but also involved in cancer biology. Furthermore, the biological explorations of mediating pathways connecting AD and GBM modules reveal inflammatory response, lipid metabolism disorder, and cell proliferation terms. Finally, novel signatures for early AD detection as well as risk models for glioma prognosis were identified based on mediating genes involved in these pathways. In conclusion, this study provided a novel network-based strategy for exploring microglia mediation between AD and GBM and identified candidate signatures for disease detection and prognosis.
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Affiliation(s)
- C Zhang
- Chunlong Zhang, College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China, ; Nan Wu, , Yanjun Xu,
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10
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Tan G, Kraft M. ASYMPTOMATIC EOSINOPHILIA WITH REACTIVE HYPERGAMMAGLOBULINEMIA. Ann Allergy Asthma Immunol 2022. [DOI: 10.1016/j.anai.2022.08.976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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Akdis D, Tan G, Wilzeck V, Costa S, Gasperetti A, Matter CM, Ruschitzka F, Brunckhorst C, Akdis CA, Saguner AM, Duru F. Identifying proteomic profiles as indicators of disease severity in arrhythmogenic cardiomyopathy. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Arrhythmogenic cardiomyopathy (ACM) is an inherited heart muscle disease characterized by progressive fibrofatty replacement of the myocardium and ventricular arrhythmias. Biventricular (BiV) involvement may lead to heart failure. This study aimed to investigate characteristic proteomic patterns in plasma of ACM patients, and correlated them with clinical outcome as well as physical exercise, to assess if key soluble molecules may serve as specific biomarkers for ACM, and whether mechanical stress induced by physical exercise may alter proteomic patterns in ACM patients.
Methods
In 38 ACM patients clinical parameters and major adverse cardiovascular events (MACE defined as presence of sustained ventricular tachycardia, ventricular fibrillation, appropriate therapy from implantable cardioverter defibrillator, sudden cardiac death, death related to end-stage heart failure or cardiac transplant) were obtained prospectively during a mean follow-up period of 36 months. All patients received genetic testing using next generation DNA sequencing. Plasma protein expression was analysed using the Proximity Extension Assay (PEA) technology, where a pair of oligonucleotide-labelled antibody probe binds to each targeted protein. In a subgroup of 11 patients blood was drawn immediately before and 3 hours after standardised bicycle exercise testing, and plasma protein expression was compared.
Results
12 patients had ACM with BiV involvement, and 26 patients had isolated right ventricular (RV) involvement. During the follow-up period, 34 patients had a MACE (30% with RV and 14% with BiV). Over 360 proteins were assessed in all ACM patients and compared to 24 healthy controls. The proteomic signature of ACM patients differed significantly compared to controls, and 32 proteins were upregulated in ACM (Figure 1). The proteomic profiles of patients with RV involvement also differed from those with BiV involvement. Most importantly, after exercise, over 40 proteins were upregulated specifically in ACM patients compared to controls, including key pro-inflammatory, adipogenic molecules and also markers of cardiac fibrosis.
Conclusion
Our study shows that ACM patients with RV and BiV involvement have different plasma proteomic profiles compared to healthy controls. Furthermore we were able to demonstrate that, specifically in ACM patients, several pro-inflammatory pathways are upregulated after exercise compared to healthy controls, further elucidating the molecular pathways associated with arrhythmogenicity and disease progression and highlighting the key role of physical stress. Our results may enable the identification of potential future biomarkers for diagnosis and risk stratification and may pave the way for personalized patient specific treatments.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): Baugarten Foundation ZurichSwiss National Foundation
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Affiliation(s)
- D Akdis
- University Heart Center, Cardiology , Zurich , Switzerland
| | - G Tan
- Swiss Institute of Allergy and Asthma Research , Davos , Switzerland
| | - V Wilzeck
- University Heart Center, Cardiology , Zurich , Switzerland
| | - S Costa
- University Heart Center, Cardiology , Zurich , Switzerland
| | - A Gasperetti
- Johns Hopkins University , Baltimore , United States of America
| | - C M Matter
- University Heart Center, Cardiology , Zurich , Switzerland
| | - F Ruschitzka
- University Heart Center, Cardiology , Zurich , Switzerland
| | - C Brunckhorst
- University Heart Center, Cardiology , Zurich , Switzerland
| | - C A Akdis
- Swiss Institute of Allergy and Asthma Research , Davos , Switzerland
| | - A M Saguner
- University Heart Center, Cardiology , Zurich , Switzerland
| | - F Duru
- University Heart Center, Cardiology , Zurich , Switzerland
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12
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Lei B, Song H, Xu F, Wei Q, Wang F, Tan G, Ma H. When does hepatitis B virus meet long-stranded noncoding RNAs? Front Microbiol 2022; 13:962186. [PMID: 36118202 PMCID: PMC9479684 DOI: 10.3389/fmicb.2022.962186] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/22/2022] [Indexed: 01/16/2023] Open
Abstract
Hepatitis B virus (HBV) infection in humans and its associated diseases are long-standing problems. HBV can produce a large number of non-self-molecules during its life cycle, which acts as targets for innate immune recognition and initiation. Among these, interferon and its large number of downstream interferon-stimulated gene molecules are important early antiviral factors. However, the development of an effective antiviral immune response is not simple and depends not only on the delicate regulation of the immune response but also on the various mechanisms of virus-related immune escape and immune tolerance. Therefore, despite there being a relatively well-established consensus on the major pathways of the antiviral response and their component molecules, the complete clearance of HBV remains a challenge in both basic and clinical research. Long-noncoding RNAs (lncRNAs) are generally >200 bp in length and perform different functions in the RNA strand encoding the protein. As an important part of the IFN-inducible genes, interferon-stimulated lncRNAs are involved in the regulation of several HBV infection-related pathways. This review traces the basic elements of such pathways and characterizes the various recent targets of lncRNAs, which not only complement the regulatory mechanisms of pathways related to chronic HBV infection, fibrosis, and cancer promotion but also present with new potential therapeutic targets for controlling HBV infection and the malignant transformation of hepatocytes.
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Affiliation(s)
- Bingxin Lei
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Department of Immunology, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University, Changchun, Jilin, China
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hongxiao Song
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Department of Immunology, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Fengchao Xu
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Department of Immunology, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Qi Wei
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Department of Immunology, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University, Changchun, Jilin, China
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Fei Wang
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Department of Immunology, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Guangyun Tan
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Department of Immunology, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University, Changchun, Jilin, China
- *Correspondence: Guangyun Tan,
| | - Haichun Ma
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
- Haichun Ma,
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13
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Li N, Wang L, Tan G, Guo Z, Liu L, Yang M, He J. Retraction: MicroRNA-218 inhibits proliferation and invasion in ovarian cancer by targeting Runx2. Oncotarget 2022; 13:863. [PMID: 35813282 PMCID: PMC9255994 DOI: 10.18632/oncotarget.28253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Na Li
- Department of Gynecology and Obstetrics, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Lufei Wang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin 130022, PR China
| | - Guangyun Tan
- Department of Immunology, Institute of Translational Medicine of The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Zhiheng Guo
- Department of Gynecology and Obstetrics, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Lei Liu
- Department of Gynecology and Obstetrics, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Ming Yang
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
- These authors have contributed equally to this work
| | - Jin He
- Department of Gynecology and Obstetrics, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
- These authors have contributed equally to this work
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14
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Tan G, Ong C, Kainth G. 10 Tip-Apex Distance in DHS & IM Nail Fixations for Hip Fractures. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Aim
Dynamic hip screws (DHS) and intramedullary nail (IMN) fixations have been successful in treating extracapsular hip fractures. Tip to apex distance (TAD) is defined as the total sum of distance from tip of the lag screw to the femoral head tip on both AP and lateral radiographs. Baumgartner et al. defined TAD<25 mm to be predictive of a successful result, with reduced rates of metalwork failure. Therefore, this study aims to assess if TAD principles are practiced during DHS and IMN fixations.
Method
102 patients were identified between December 2019 and February 2020. The distance was measured on AP and lateral radiographs to calculate the TAD. Patients were followed up for 1 year where the fractures either united or failed.
Results
Patients recruited had age ranges between 19–103 years old, of which 36% are male and 64% are female. 68% had underwent DHS while 32% underwent IM nail. In the DHS group, 13 patients had TAD of >25 mm, 28 with TAD of 20–25 mm, 18 with TAD of 15–20mm and 6 with TAD of <15 mm. For the IM nail group, there are 7 with TAD of 20–25 mm, 13 with TAD of 15–20mm and 10 with TAD of <15 mm.
Conclusions
There were no IM nails that exceeded TAD of 25mm, but 13 DHS fixations were >25mm. 12/13 DHS fixations >25mm TAD were performed by trainees. We advocate emphasis on the TAD principle and re-enforcing to orthopaedic trainees to improve the outcome of DHS in patients with neck of femur fractures.
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Affiliation(s)
- G. Tan
- Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
| | - C.T. Ong
- Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom
| | - G. Kainth
- Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
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15
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Tan G, Dunning J. 11 Robotic Left Lower Sleeve Lobectomy with Bronchoplasty for the Removal of a Carcinoid Tumour. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Lung carcinoid tumours constitute approximately 1–2% of all pulmonary tumours. They are derived from enterochromaffin cells, which are also known as ‘Kulchitsky cells' and generally have indolent growth and development patterns. Carcinoid tumours are categorized as typical or atypical, depending on the number of mitoses per high power field and the presence of necrosis. In terms of management, surgical resection has been recognized to be the standard treatment for pulmonary carcinoid tumours. To our knowledge, the da Vinci system and robotic surgery have not been applied in sleeve lobectomies and bronchoplasty for the removal of carcinoid tumours in the United Kingdom. Therefore, we present a case of a sleeve lobectomy with bronchoplasty procedure for the removal of a carcinoid tumour located in the left lower lobe of the patient. The bronchus was repaired using a V-lock suture & Prolene sutures with the surgery performed using the da Vinci robotic surgical system.
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Affiliation(s)
- G. Tan
- Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
| | - J. Dunning
- James Cook University Hospital, Middlesbrough, United Kingdom
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16
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Gomar JJ, Tan G, Halpern J, Gordon ML, Greenwald B, Koppel J. Increased retention of tau PET ligand [ 18F]-AV1451 in Alzheimer's Disease Psychosis. Transl Psychiatry 2022; 12:82. [PMID: 35217635 PMCID: PMC8881582 DOI: 10.1038/s41398-022-01850-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/04/2022] [Accepted: 02/09/2022] [Indexed: 11/09/2022] Open
Abstract
Psychosis in Alzheimer's disease (AD) represents a distinct disease subtype with a more rapid progression of illness evidenced by an increased velocity of cognitive decline and a hastened mortality. Previous biomarker and post-mortem studies have implicated tau neuropathology as a possible mediator of the accelerated decline in AD psychosis. Tau positron emission tomography (PET) neuroimaging provides the opportunity to evaluate tau pathology in-vivo, so that clinical symptomatology can be correlated with disease pathology. [18F]-AV1451 (Flortaucipir) is a PET ligand with high affinity for insoluble paired-helical filaments (PHFs) of hyperphosphorylated tau. In order to determine whether the development of psychosis and worsened prognosis in AD is associated with an increased burden of tau pathology that can be identified with tau imaging, we identified subjects within the Alzheimer's disease neuroimaging initiative (ADNI) who had [18F]-AV1451 imaging at baseline and became psychotic over the course of the study (N = 17) and matched them 1:3 for gender, age, and education to subjects who had [18F]-AV1451 imaging at baseline and did not become psychotic (N = 50). We compared baseline [18F]-AV1451 retention, in addition to cognitive and functional baseline and longitudinal change, in those who became psychotic over the course of participation in ADNI with those who did not. Results suggest that increases in tau pathology in frontal, medial temporal, and occipital cortices, visualized with [18F]-AV1451 binding, are associated with psychosis and a more rapid cognitive and functional decline.
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Affiliation(s)
- J. J. Gomar
- grid.250903.d0000 0000 9566 0634Feinstein Institutes for Medical Research, Manhassett, NY USA
| | - G. Tan
- grid.250903.d0000 0000 9566 0634Feinstein Institutes for Medical Research, Manhassett, NY USA
| | - J. Halpern
- grid.250903.d0000 0000 9566 0634Feinstein Institutes for Medical Research, Manhassett, NY USA
| | - M. L. Gordon
- grid.250903.d0000 0000 9566 0634Feinstein Institutes for Medical Research, Manhassett, NY USA ,grid.416477.70000 0001 2168 3646Department of Psychiatry, Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY USA
| | - B. Greenwald
- grid.416477.70000 0001 2168 3646Department of Psychiatry, Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY USA
| | - J. Koppel
- grid.250903.d0000 0000 9566 0634Feinstein Institutes for Medical Research, Manhassett, NY USA ,grid.416477.70000 0001 2168 3646Department of Psychiatry, Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY USA
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17
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Xu F, Song H, Xiao Q, Wei Q, Pang X, Gao Y, Tan G. Type-III interferon stimulated gene TRIM31 mutation in an HBV patient blocks its ability in promoting HBx degradation. Virus Res 2022; 308:198650. [PMID: 34863820 DOI: 10.1016/j.virusres.2021.198650] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/29/2021] [Accepted: 11/29/2021] [Indexed: 10/19/2022]
Abstract
TRIM5γ, together with TRIM31, has been shown to promote HBx ubiquitination and degradation. This study aimed to explore whether a patient with HCC (hepatic cell carcinoma) having a small nucleotide inserted into the TRIM31 gene, which made a shorter transcript stop at 768 bp, would result in blocking the activity of TRIM31 in promoting HBx degradation. Besides, this study aimed to determine the binding region of the TRIM31-TRIM5γ-HBx complex. HBV (Hepatitis B virus) infection was reported to induce type-III IFN but not type-I or type-II IFNs, here TRIM31 was found to be a type III rather than a type I stimulated gene, which was indispensable in inhibiting the hepatitis B virus replication by the interferon families. Thus, this study further identified the critical role of TRIM31 in the host-hepatitis B virus interaction.
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Affiliation(s)
- Fengchao Xu
- Department of Immunology, Institute of Translational Medicine, the First Hospital of Jilin University, Changchun, Jilin 130061, China
| | - Hongxiao Song
- Department of Immunology, Institute of Translational Medicine, the First Hospital of Jilin University, Changchun, Jilin 130061, China
| | - Qingfei Xiao
- Department of Nephrology, the First Hospital of Jilin University, Changchun, 130031, Jilin, China
| | - Qi Wei
- Department of Anesthesia, the First Hospital, Jilin University, Changchun, 130021, Jilin, China
| | - Xiaoli Pang
- Department of Pediatric Gastroenterology, the First Hospital, Jilin University, Changchun 130021, Jilin, China
| | - Yanli Gao
- Department of Pediatrics, the First Hospital, Jilin University, Changchun 130021, Jilin, China.
| | - Guangyun Tan
- Department of Immunology, Institute of Translational Medicine, the First Hospital of Jilin University, Changchun, Jilin 130061, China.
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18
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Zhao Y, Sui L, Wu P, Wang W, Wang Z, Yu Y, Hou Z, Tan G, Liu Q, Wang G. A dual-role of SARS-CoV-2 nucleocapsid protein in regulating innate immune response. Signal Transduct Target Ther 2021; 6:331. [PMID: 34471099 PMCID: PMC8409078 DOI: 10.1038/s41392-021-00742-w] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 12/12/2022] Open
Abstract
The recently emerged severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is the causative agent of ongoing global pandemic of COVID-19, may trigger immunosuppression in the early stage and overactive immune response in the late stage of infection; However, the underlying mechanisms are not well understood. Here we demonstrated that the SARS-CoV-2 nucleocapsid (N) protein dually regulated innate immune responses, i.e., the low-dose N protein suppressed type I interferon (IFN-I) signaling and inflammatory cytokines, whereas high-dose N protein promoted IFN-I signaling and inflammatory cytokines. Mechanistically, the SARS-CoV-2 N protein dually regulated the phosphorylation and nuclear translocation of IRF3, STAT1, and STAT2. Additionally, low-dose N protein combined with TRIM25 could suppress the ubiquitination and activation of retinoic acid-inducible gene I (RIG-I). Our findings revealed a regulatory mechanism of innate immune responses by the SARS-CoV-2 N protein, which would contribute to understanding the pathogenesis of SARS-CoV-2 and other SARS-like coronaviruses, and development of more effective strategies for controlling COVID-19.
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Affiliation(s)
- Yinghua Zhao
- Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, State Key Laboratory of Human-Animal Zoonotic infectious Diseases, Changchun, China
| | - Liyan Sui
- Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, State Key Laboratory of Human-Animal Zoonotic infectious Diseases, Changchun, China
| | - Ping Wu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Wenfang Wang
- Department of Pathogenbiology, The Key Laboratory of Zoonosis, Chinese Ministry of Education, College of Basic Medicine, Jilin University, Changchun, China
| | - Zedong Wang
- Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, State Key Laboratory of Human-Animal Zoonotic infectious Diseases, Changchun, China
| | - Yang Yu
- Hospital of Stomatology, Jilin University, Changchun, China
| | - Zhijun Hou
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Guangyun Tan
- Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, State Key Laboratory of Human-Animal Zoonotic infectious Diseases, Changchun, China.
| | - Quan Liu
- Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, State Key Laboratory of Human-Animal Zoonotic infectious Diseases, Changchun, China. .,College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China. .,School of Life Sciences and Engineering, Foshan University, Foshan, China. .,Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.
| | - Guoqing Wang
- Department of Pathogenbiology, The Key Laboratory of Zoonosis, Chinese Ministry of Education, College of Basic Medicine, Jilin University, Changchun, China.
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19
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Song H, Xu F, Pang X, Xiao Q, Wei Q, Lei B, Li X, Fan X, Tan G. STAT3-Dependent Gene TRIM5γ Interacts With HBx Through a Zinc Binding Site on the BBox Domain. Front Microbiol 2021; 12:663534. [PMID: 34276596 PMCID: PMC8283784 DOI: 10.3389/fmicb.2021.663534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/11/2021] [Indexed: 12/05/2022] Open
Abstract
Owing to its broad-spectrum antivirus activities, interferon (IFN) is an important alternative agent for use in the treatment of hepatitis B virus (HBV)-infected patients; however, the mechanism involved in the inhibition of HBV infection and replication by IFN remains unclear. We previously reported that the induction of TRIM5γ is important in the IFN treatment of HBV patients as it promotes the degradation of the HBx protein, while the manner in which TRIM5γ is induced by IFN and how TRIM5γ interacts with HBx remain unestablished until date. Our present findings confirmed the TRIM5γ-HBx-DDB1 interactions in the HBV-infected Primary human hepatocytes (PHH), and we further found that STAT3, and not STAT1, was responsible for the induction of TRIM5γ upon IFN stimulation and that the zinc binding site His123 on the BBOX domain was a decisive site in the interaction between TRIM5γ BBOX and HBx. In addition, based on the BBOX domain, we detected a 7-amino acid peptide with the potential of promoting HBx degradation and inhibiting HBV replication. On the other hand, we noted that the TRIM5γ expression was inhibited by HBV in chronically HBV infected patients. Thus, our study identified the crucial role of STAT3 in the induction of TRIM5γ, as well as proposed a 7-amino acid, small peptide as a potential candidate for the development of therapeutic agents targeting HBx.
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Affiliation(s)
- Hongxiao Song
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Fengchao Xu
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Xiaoli Pang
- Department of Pediatric Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Qingfei Xiao
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Qi Wei
- Department of Anesthesia, The First Hospital of Jilin University, Changchun, China
| | - Bingxin Lei
- Department of Anesthesia, The First Hospital of Jilin University, Changchun, China
| | - Xiaolu Li
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Xixi Fan
- Department of Clinical Specialty of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Guangyun Tan
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
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20
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Sui L, Zhao Y, Wang W, Wu P, Wang Z, Yu Y, Hou Z, Tan G, Liu Q. SARS-CoV-2 Membrane Protein Inhibits Type I Interferon Production Through Ubiquitin-Mediated Degradation of TBK1. Front Immunol 2021; 12:662989. [PMID: 34084167 PMCID: PMC8168463 DOI: 10.3389/fimmu.2021.662989] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/31/2021] [Indexed: 12/25/2022] Open
Abstract
The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is the causative pathogen of current COVID-19 pandemic, and insufficient production of type I interferon (IFN-I) is associated with the severe forms of the disease. Membrane (M) protein of SARS-CoV-2 has been reported to suppress host IFN-I production, but the underlying mechanism is not completely understood. In this study, SARS-CoV-2 M protein was confirmed to suppress the expression of IFNβ and interferon-stimulated genes induced by RIG-I, MDA5, IKKϵ, and TBK1, and to inhibit IRF3 phosphorylation and dimerization caused by TBK1. SARS-CoV-2 M could interact with MDA5, TRAF3, IKKϵ, and TBK1, and induce TBK1 degradation via K48-linked ubiquitination. The reduced TBK1 further impaired the formation of TRAF3-TANK-TBK1-IKKε complex that leads to inhibition of IFN-I production. Our study revealed a novel mechanism of SARS-CoV-2 M for negative regulation of IFN-I production, which would provide deeper insight into the innate immunosuppression and pathogenicity of SARS-CoV-2.
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Affiliation(s)
- Liyan Sui
- Laboratory of Emerging Infectious Disease, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Yinghua Zhao
- Laboratory of Emerging Infectious Disease, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Wenfang Wang
- College of Basic Medical Science, Jilin University, Changchun, China
| | - Ping Wu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Zedong Wang
- Laboratory of Emerging Infectious Disease, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Yang Yu
- Hospital of Stomatology, Jilin University, Changchun, China
| | - Zhijun Hou
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Guangyun Tan
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Quan Liu
- Laboratory of Emerging Infectious Disease, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
- School of Life Sciences and Engineering, Foshan University, Foshan, China
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21
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Tan G, Wei P, He Y, Xu H, Shi X, Yi P. An algorithm based on valuation forecasting for game tree search. INT J MACH LEARN CYB 2020. [DOI: 10.1007/s13042-020-01222-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Ren W, Gan D, Tan G, Xue H, Li N, Xu Z. CHANGES OF WNT/B-CATENIN SIGNALING AND DIFFERENTIATION POTENTIAL OF BONE MARROW MESENCHYMAL STEM CELLS IN PROCESS OF BONE LOSS IN OVARIECTOMIZED RATS. Acta Endocrinol (Buchar) 2020; 16:156-164. [PMID: 33029231 DOI: 10.4183/aeb.2020.156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background In vitro studies of the changes about osteoblastogenesis and adipogenesis potential of BMSCs were not clear. As it is the critical pathway for osteogenic differentiation and bone formation, whether or not Wnt/β-catenin signalling is involved in the changes of osteogenic and adipogenic potential of BMSCs and participates in bone content decrease of ovariectomized (OVX)osteoporosis rats has been rarely reported. Material/Methods BMSCs from femurs of ovariectomzed rats were isolated and cultured in vitro. The proliferation potential of BMSCs was analysed by CCK-8 assays . Osteoblastic and adipogenic differentiation potential of the BMSCs was assessed by ALP activity assay, Alizarin red S staining, Oil red O staining and RT-PCR analysis. Results The results demonstrated that BMSCs from bilateral ovariectomization rats were endowed with lower proliferation and osteoblastic differentiation potential but higher adipogenic potential than the control group in vitro. In addition, β-catenin was found to have been decreased in OVX BMSCs, indicating that Wnt/β-catenin signalling pathways were suppressed in OVX BMSCs . Conclusions Results suggested that changes in the Wnt canonical signalling pathway may be related to imbalances of osteogenic and adipogenic potential of BMSCs, and this may be an important factor related to bone content decrease in ovariectomized osteoporosis rats.
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23
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Lang CCV, Masenga J, Semango G, Kaderbhai H, Li N, Tan G, Heider A, Guttman-Yassky E, Grimm F, Schmid-Grendelmeier P, Brüggen MC. Evidence for different immune signatures and sensitization patterns in sub-Saharan African vs. Central European atopic dermatitis patients. J Eur Acad Dermatol Venereol 2020; 35:e140-e142. [PMID: 32780875 DOI: 10.1111/jdv.16871] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- C C V Lang
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - J Masenga
- Regional Dermatology Training Center at Kilimanjaro Christian Medical Centre, Moshi, Tanzania
| | - G Semango
- Regional Dermatology Training Center at Kilimanjaro Christian Medical Centre, Moshi, Tanzania
| | - H Kaderbhai
- Regional Dermatology Training Center at Kilimanjaro Christian Medical Centre, Moshi, Tanzania
| | - N Li
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - G Tan
- Swiss Institute of Allergy and Asthma Research (SIAF), Davos, Switzerland.,Functional Genomics Center Zurich, ETH Zurich/University of Zurich, Zurich, Switzerland
| | - A Heider
- Swiss Institute of Allergy and Asthma Research (SIAF), Davos, Switzerland
| | - E Guttman-Yassky
- Department of Dermatology, Mount Sinai Hospital New York, New York, USA
| | - F Grimm
- Institute for Parasitology, University of Zurich, Zurich, Switzerland
| | - P Schmid-Grendelmeier
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - M C Brüggen
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland.,Hochgebirgsklinik Davos, Davos, Switzerland
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24
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Lloyd TD, Neal‐Smith G, Fennelly J, Claireaux H, Bretherton C, Carr AJ, Murphy M, Kendrick BJ, Palmer AJR, Wong J, Sharma P, Osei‐Bonsu PK, Ashcroft G, Baigent T, Shirland E, Espey R, Stokes M, Liew I, Dhawal A, Watchorn D, Lum J, Qureshi M, Khaled AS, Kauser S, Hodhody G, Rogers S, Haywood‐Alexander B, Sheikh G, Mahapatra P, Twaij H, Chicco M, Arnaout F, Atherton T, Mutimer J, Sinha P, Oliver E, Stedman T, Gadd R, Kutuzov V, Sattar M, Robiati L, Plastow R, Howe T, Hassan A, Lau B, Collins J, Doshi A, Tan G, Baskaran D, Hari Sunil Kumar K, Agarwal R, Horner M, Gwyn R, Masud S, Beaumont O, Pilarski A, Lebe M, Dawson‐Bowling S, Nolan D, Tsitskaris K, Beamish RE, Jordan C, Alsop S, Hibbert E, Deshpande G, Gould A, Briant‐Evans T, Kilbane L, Crowther I, Ingoe H, Naisbitt A, Gourbault L, Muscat J, Goh EL, Gill J, Elbashir M, Modi N, Archer J, Ismael S, Petrie M, O'Brien H, McCormick M, Koh NP, Lloyd T, King A, Ikram A, Peake J, Yoong A, Rye DS, Newman M, Naraen A, Myatt D, Kapur R, Sgardelis P, Kohli S, Culverhouse‐Mathews M, Haynes S, Boden H, Purmah A, Shenoy R, Raja S, Koh NP, Donovan R, Yeomans D, Ritchie D, Larkin R, Aladwan R, Hughes K, Unsworth R, Cooke R, Samra I, Barrow J, Michael K, Byrne F, Anwar R, Karatzia L, Drysdale H, Wilson H, Jones R, Dass D, Liaw F, Aujla R, Kheiran A, Bell K, Ramavath AL, Telfer R, Nachev K, Lawrence H, Garg V, Shenoy P, Lacey A, Byrom I, Simons M, Manning C, Cheyne N, Williams J. Peri‐operative administration of tranexamic acid in lower limb arthroplasty: a multicentre, prospective cohort study. Anaesthesia 2020; 75:1050-1058. [DOI: 10.1111/anae.15056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2020] [Indexed: 12/20/2022]
Affiliation(s)
- T. D. Lloyd
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - G. Neal‐Smith
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - J. Fennelly
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - H. Claireaux
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - C. Bretherton
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - A. J. Carr
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
| | - M. Murphy
- University of Oxford UK
- NHS Blood and Transplant Oxford UK
| | - B. J. Kendrick
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
| | - A. J. R. Palmer
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
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25
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Toliman P, Phillips S, de Jong S, O'Neill T, Tan G, Brotherton J, Saville M, Kaldor J, Vallely A, Tabrizi S. Evaluation of p16/Ki-67 dual-stain cytology performed on self-collected vaginal and clinician-collected cervical specimens for the detection of cervical pre-cancer. Clin Microbiol Infect 2020; 26:748-752. [DOI: 10.1016/j.cmi.2019.10.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 10/05/2019] [Accepted: 10/16/2019] [Indexed: 12/19/2022]
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26
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Zhuang K, Patel A, Tay K, Irani F, Matchar D, Sivapragasam N, Pua U, Sum L, Tze Tec C, Tan G, Chan E, Win H, Burgmans M, Gogna A, Damodharan K, Chan S, Too C, Karaddi Venkatanarasimha N, Quek L, Gummalla K, Siew Ping C, Tan B. 4:12 PM Abstract No. 50 Quality of life outcomes from a randomized controlled trial comparing drug-eluting balloon to conventional balloon angioplasty for below-the-knee arteries in patients with critical limb ischemia. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Abstract
Metabolic reprogramming has been identified as a hallmark of cancer. Liver is an essential hub in the body for the metabolism of three major nutrients including glucose, lipids and amino acids. Hepatocellular carcinoma(HCC) usually presents a variety of changes in characteristic metabolism, such as increased aerobic glycolysis, enhanced de novo lipid synthesis, glutamine depletion, and oxidative metabolism imbalance, which can provide energy and bio-macromolecular raw materials for rapidly growing and proliferating tumor cells. The process of tumor metabolic reprogramming is regulated by multiple factors, such as alterations in metabolic enzyme activity, abnormal gene expression, and signaling pathway disturbance. Advances in high-throughout metabolomics technology have provided a powerful platform for discovering the novel biomarkers and metabolic targets of HCC. Therefore, in-depth study of the metabolic characteristics and regulatory mechanisms of HCC is critical for the development of novel antimetabolites.
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Affiliation(s)
- Z Ning
- Department of Hepatobiliary Surgery, the First Affiliated Hospital, Dalian Medical University, Dalian 116000, China
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28
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Budacan AM, Tan G, Cheeseman M, Mofidi R, Wong P. Patients Turned Down for Non-Emergency Abdominal Aortic Aneurysm (AAA) Surgery: Are We Doing The Right Thing? Factors that Influence Decision Making and the Long-term outcome – A Single Centre Experience. Eur J Vasc Endovasc Surg 2019. [DOI: 10.1016/j.ejvs.2019.06.898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Niu J, Shi Y, Tan G, Yang CH, Fan M, Pfeffer LM, Wu ZH. Withdrawal: DNA damage induces NF-κB-dependent microRNA-21 up-regulation and promotes breast cancer cell invasion. J Biol Chem 2019; 294:18015. [PMID: 31757802 DOI: 10.1074/jbc.w119.011598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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30
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Xu F, Song H, An B, Xiao Q, Cheng G, Tan G. NF-κB-Dependent IFIT3 Induction by HBx Promotes Hepatitis B Virus Replication. Front Microbiol 2019; 10:2382. [PMID: 31681236 PMCID: PMC6797949 DOI: 10.3389/fmicb.2019.02382] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/01/2019] [Indexed: 12/13/2022] Open
Abstract
Therapeutic administration of type I IFN (IFN-I) is a common treatment option for individuals suffering from hepatitis B virus (HBV) infection. IFN-I therapy, however, has a relatively low response rate in HBV-infected patients and can induce serious side-effects, limiting its clinical efficacy. There is, thus, a clear need to understand the molecular mechanisms governing the influence of IFN-I therapy in HBV treatment in order to improve patient outcomes. In this study, we explored the interactions between HBV and IFITs (IFN-induced proteins with tetratricopeptide repeats), which are classical IFN-inducible genes. Specifically, we found that HBV patients undergoing IFN-I therapy exhibited elevated expression of IFITs in their peripheral blood mononuclear cells (PBMCs). We further observed upregulation in the expressions of IFIT1, IFIT2, and IFIT3 in cells transfected with the pHBV1.3 plasmid, which yields infectious virions in hepatic cells. We additionally found that HBx, which is the only regulatory protein encoded within the HBV genome, activates NF-κB, which in turn directly drives IFIT3 transcription. When IFIT3 was overexpressed in HepG2 cells, HBV replication was enhanced. Together, these results suggest that IFIT genes may unexpectedly enhance viral replication, thus making these genes potential therapeutic targets in patients with HBV.
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Affiliation(s)
- Fengchao Xu
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Hongxiao Song
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Beiying An
- Department of Clinical Laboratory, The First Hospital of Jilin University, Changchun, China
| | - Qingfei Xiao
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Genhong Cheng
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China.,Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States.,Center of Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Suzhou Institute of Systems Medicine, Suzhou, China
| | - Guangyun Tan
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
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31
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Shi Z, Tan G, Wang L. 032 Il-1b is essential for anti-galectin3 antibody induced cutaneous vasculitis in systemic lupus erythematosus. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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32
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Song H, Tan G, Yang Y, Cui A, Li H, Li T, Wu Z, Yang M, Lv G, Chi X, Niu J, Zhu K, Crispe IN, Su L, Tu Z. Hepatitis B Virus-Induced Imbalance of Inflammatory and Antiviral Signaling by Differential Phosphorylation of STAT1 in Human Monocytes. J Immunol 2019; 202:2266-2275. [PMID: 30842274 DOI: 10.4049/jimmunol.1800848] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 02/12/2019] [Indexed: 12/14/2022]
Abstract
It is not clear how hepatitis B virus (HBV) modulates host immunity during chronic infection. In addition to the key mediators of inflammatory response in viral infection, monocytes also express a high-level IFN-stimulated gene, CH25H, upon response to IFN-α exerting an antiviral effect. In this study, the mechanism by which HBV manipulates IFN signaling in human monocytes was investigated. We observed that monocytes from chronic hepatitis B patients express lower levels of IFN signaling/stimulated genes and higher levels of inflammatory cytokines compared with healthy donors. HBV induces monocyte production of inflammatory cytokines via TLR2/MyD88/NF-κB signaling and STAT1-Ser727 phosphorylation and inhibits IFN-α-induced stat1, stat2, and ch25h expression through the inhibition of STAT1-Tyr701 phosphorylation and in an IL-10-dependent, partially autocrine manner. Further, we found that enhancement of STAT1 activity with a small molecule (2-NP) rescued HBV-mediated inhibition of IFN signaling and counteracted the induction of inflammatory cytokines. In conclusion, HBV contributes to the monocyte inflammatory response but inhibits their IFN-α/β responsiveness to impair antiviral innate immunity. These effects are mediated via differential phosphorylation of Tyr701 and Ser727 of STAT1.
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Affiliation(s)
- Hongxiao Song
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Guangyun Tan
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Yang Yang
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - An Cui
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Haijun Li
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Tianyang Li
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Zhihui Wu
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Miaomiao Yang
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Guoyue Lv
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Xiumei Chi
- Institute of Liver Diseases, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Junqi Niu
- Institute of Liver Diseases, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Kangshun Zhu
- Department of Minimally Invasive Interventional Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Ian Nicholas Crispe
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China.,Department of Pathology, University of Washington, Seattle, WA 98195; and
| | - Lishan Su
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China.,Lineberger Comprehensive Cancer Center, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Zhengkun Tu
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China; .,Institute of Liver Diseases, The First Hospital of Jilin University, Changchun, Jilin 130021, China
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Tan G, Xu F, Song H, Yuan Y, Xiao Q, Ma F, Qin FXF, Cheng G. Identification of TRIM14 as a Type I IFN-Stimulated Gene Controlling Hepatitis B Virus Replication by Targeting HBx. Front Immunol 2018; 9:1872. [PMID: 30150992 PMCID: PMC6100580 DOI: 10.3389/fimmu.2018.01872] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 07/30/2018] [Indexed: 12/28/2022] Open
Abstract
Hepatitis B virus (HBV) remains a major cause of hepatic disease that threatens human health worldwide. Type I IFN (IFN-I) therapy is an important therapeutic option for HBV patients. The antiviral effect of IFN is mainly mediated via upregulation of the expressions of the downstream IFN-stimulated genes. However, the mechanisms by which IFN induces ISG production and inhibits HBV replication are yet to be clarified. TRIM14 was recently reported as a key molecule in the IFN-signaling pathway that regulates IFN production in response to viral infection. In this study, we sought to understand the mechanisms by which IFN restricts HBV replication. We confirmed that TRIM14 is an ISG in the hepatic cells, and that the pattern-recognition receptor ligands polyI:C and polydAdT induce TRIM14 dependent on IFN-I production. In addition, IFN-I-activated STAT1 (but not STAT3) directly bound to the TRIM14 promoter and mediated the induction of TRIM14. Interestingly, TRIM14 played an important role in IFN-I-mediated inhibition of HBV, and the TRIM14 SPRY domain interacted with the C-terminal of HBx, which might block the role of HBx in facilitating HBV replication by inhibiting the formation of the Smc-HBx–DDB1 complex. Thus, our study clearly demonstrates that TRIM14 is a STAT1-dependent ISG, and that the IFN-I–TRIM14–HBx axis shows an alternative way to understand the mechanism by which IFN-I inhibits virus replication.
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Affiliation(s)
- Guangyun Tan
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Fengchao Xu
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Hongxiao Song
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Ye Yuan
- Department of Medicine Laboratory, The First Hospital of Jilin University, Changchun, China
| | - Qingfei Xiao
- Department of Nephrology, The First Hospital, Jilin University, Changchun, China
| | - Feng Ma
- Suzhou Institute of Systems Medicine, Suzhou, China
| | | | - Genhong Cheng
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China.,Suzhou Institute of Systems Medicine, Suzhou, China.,Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA, United States
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Abstract
Chronic hepatitis B virus (HBV) infection imposes a severe burden on global public health. Currently, there are no curative therapies for millions of chronic HBV-infected patients (Lok et al., 2017). Interferon (IFN; including pegylated IFN) is an approved anti-HBV drug that not only exerts direct antiviral activity, but also augments immunity against HBV infection. Through a systematic review of the literature, here we summarize and present recent progress in research regarding the interactions between IFN and HBV as well as dissect the antiviral mechanisms of IFN. We focus on inhibition of HBV replication by IFN-stimulated genes (ISGs) as well as inhibition of IFN signaling by HBV and viral proteins. Finally, we briefly discuss current IFN-based HBV treatment strategies. This review may help to better understand the mechanisms involved in the therapeutic action of IFN as well as the crosstalk between IFN and HBV, and facilitate the development of both direct-acting and immunology-based new HBV drugs.
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Affiliation(s)
- Guangyun Tan
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Hongxiao Song
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Fengchao Xu
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Genhong Cheng
- Department of Immunology, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China.,Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States.,Center of System Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Suzhou Institute of Systems Medicine, Suzhou, China
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35
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Toliman PJ, Kaldor JM, Badman SG, Phillips S, Tan G, Brotherton JML, Saville M, Vallely AJ, Tabrizi SN. Evaluation of self-collected vaginal specimens for the detection of high-risk human papillomavirus infection and the prediction of high-grade cervical intraepithelial lesions in a high-burden, low-resource setting. Clin Microbiol Infect 2018; 25:496-503. [PMID: 29906593 DOI: 10.1016/j.cmi.2018.05.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 05/08/2018] [Accepted: 05/12/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To compare the performance of self-collected vaginal (V) specimens with clinician-collected cervical (C) specimens for detection of high-risk human papillomavirus (hrHPV) and cervical disease using the Cepheid Xpert HPV, Roche Cobas 4800 HPV and Hologic Aptima HPV assays. METHODS Women aged 30-59 years (n = 1005) were recruited at two clinics in Papua New Guinea, and they provided specimens for testing at point-of-care using the Xpert HPV Test, and for subsequent testing using the Cobas HPV (n = 981) and Aptima HPV (n = 983) assays. Liquid-based cytology was performed on C specimens to predict underlying high-grade squamous intraepithelial lesions (HSIL). V specimen results of each assay were evaluated against a constructed reference standard and for detection of HSIL or worse. RESULTS There was substantial (κ >0.6) agreement in hrHPV detection between V and C specimens across all three assays. The sensitivity, specificity, and positive and negative predictive values of Xpert HPV using self-collected V specimens for the detection of HPV type 16 according to the constructed reference standard were 92.1%, 93.1%, 63.6% and 98.9%, respectively; compared with 90.4%, 94.3%, 67.8% and 98.7% for Cobas 4800 HPV; and 63.2%, 97.2%, 75.0% and 95.3% for Aptima HPV. Similar results were observed for all hrHPV types (combined) and for HPV types 18/45, on all three assays. The detection of any hrHPV using self-collected specimens had high sensitivity (86%-92%), specificity (87%-94%) and negative predictive value (>98%) on all assays for HSIL positivity. CONCLUSIONS Xpert HPV, using self-collected vaginal specimens, has sufficient accuracy for use in point-of-care 'test-and-treat' cervical screening strategies in high-burden, low-resource settings.
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Affiliation(s)
- P J Toliman
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea; The Kirby Institute, University of New South Wales, Sydney, NSW, Australia.
| | - J M Kaldor
- The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - S G Badman
- The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - S Phillips
- Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Vic., Australia; Murdoch Children's Research Institute, Parkville, Vic., Australia
| | - G Tan
- Victorian Cytology Service, Melbourne, Vic., Australia
| | | | - M Saville
- Victorian Cytology Service, Melbourne, Vic., Australia
| | - A J Vallely
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea; The Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - S N Tabrizi
- Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Vic., Australia; Murdoch Children's Research Institute, Parkville, Vic., Australia; Department of Obstetrics and Gynaecology, University of Melbourne, Vic., Australia
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Lee ZJ, Chia SL, Tan G, Soo KC, Teo CCM. Cost Effectiveness of Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy for Management of Colorectal Peritoneal Carcinomatosis. Ann Surg Oncol 2018; 25:2340-2346. [DOI: 10.1245/s10434-018-6508-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Indexed: 01/16/2023]
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Chandran N, Tan G, Chia C, Teo M. Prognostic factors for early recurrences following cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) for colorectal and appendiceal peritoneal metastases. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tan G, Kaya M, Tevlek A, Sargin I, Baran T. Antitumor activity of chitosan from mayfly with comparison to commercially available low, medium and high molecular weight chitosans. In Vitro Cell Dev Biol Anim 2018; 54:366-374. [PMID: 29654403 DOI: 10.1007/s11626-018-0244-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/15/2018] [Indexed: 11/29/2022]
Abstract
Insects' cuticles have a potential to be evaluated as a chitin source. Especially adults of aquatic insects like mayflies (order Ephemeroptera) swarm in enormous numbers in artificially lit areas while mating in spring and then die by leaving huge amounts of dead insects' bodies. Here in this study, mayfly corpses were harvested and used for production of low MW chitosan. Dried mayfly bodies had 10.21% chitin content; mayfly chitin was converted into chitosan with efficiency rate of 78.43% (deacetylation degree, 84.3%; MW, 3.69 kDa). Cytotoxicity and anti-proliferative activity of mayfly and commercially available shrimp chitosans (low, medium, and high MW) were determined on L929 fibroblast and three different cancer types including HeLa, A549, and WiDr. Apoptosis and necrosis stimulating potential of mayfly and commercial chitosans were also evaluated on A549 and WiDr cells using acridine orange and propidium iodide dual staining to observe morphological changes in nuclei and thus to reveal the predominant cell death mechanism. The effects of chitosans have varied depending on cell types, concentration, and chitosan derivatives. Mayfly and low MW chitosans had a cytotoxic effect at a concentration of 500 μg mL-1 on non-cancer cells. At concentrations below this value (250 μg mL-1), mayfly and commercial chitosans except high MW one exhibited strong inhibitory activity on cancer cells especially A549 and WiDr cells. Mayfly chitosan induced early and late apoptosis in A549 cells, but late apoptosis and necrosis in WiDr cells. This study suggests that dead bodies of mayflies can be used for production of low MW chitosan with anti-proliferative activity.
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Affiliation(s)
- G Tan
- Department of Biology, Faculty of Science and Letters, Aksaray University, TR-68100, Aksaray, Turkey.
| | - M Kaya
- Department of Biotechnology and Molecular Biology, Faculty of Science and Letters, Aksaray University, TR-68100, Aksaray, Turkey
| | - A Tevlek
- Bioengineering Division, Institute of Science and Engineering, Hacettepe University, TR-06800, Ankara, Turkey
| | - I Sargin
- Department of Biotechnology and Molecular Biology, Faculty of Science and Letters, Aksaray University, TR-68100, Aksaray, Turkey
| | - T Baran
- Department of Chemistry, Faculty of Science and Letters, Aksaray University, TR-68100, Aksaray, Turkey
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Wei CC, Zhang ST, Tan G, Zhang SH, Liu M. Impact of anemia on in-hospital complications after ischemic stroke. Eur J Neurol 2018; 25:768-774. [PMID: 29431886 DOI: 10.1111/ene.13595] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 02/06/2018] [Indexed: 02/05/2023]
Affiliation(s)
- C.-C. Wei
- Department of Neurology; West China Hospital; Sichuan University; Chengdu Sichuan Province China
| | - S.-T. Zhang
- Department of Neurology; West China Hospital; Sichuan University; Chengdu Sichuan Province China
| | - G. Tan
- Department of Neurology; West China Hospital; Sichuan University; Chengdu Sichuan Province China
| | - S.-H. Zhang
- Department of Neurology; West China Hospital; Sichuan University; Chengdu Sichuan Province China
| | - M. Liu
- Department of Neurology; West China Hospital; Sichuan University; Chengdu Sichuan Province China
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40
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Huang M, Tan G, Lu S, Huang D, Fu L. Evaluation of effect for obstructive sleep apnea patients treated with soft-hard plastic mandibular advancing oral appliance. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Affiliation(s)
- Z Shi
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - Z Meng
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Guangzhou, China
- Institute of Dermatology, Guangzhou Medical University, Guangzhou, China
| | - Y Han
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - C Cao
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Guangzhou, China
- Department of Dermatology, Guangzhou Red Cross Hospital, Guangzhou, China
| | - G Tan
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Guangzhou, China
| | - L Wang
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Guangzhou, China
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Shi Z, Tan G, Han Y, Cao C, Wang L. 327 Galectin-3 in keratinocytes participates psoriasis development by recruiting neutrophils into epidermis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Li N, Wang L, Tan G, Guo Z, Liu L, Yang M, He J. MicroRNA-218 inhibits proliferation and invasion in ovarian cancer by targeting Runx2. Oncotarget 2017; 8:91530-91541. [PMID: 29207663 PMCID: PMC5710943 DOI: 10.18632/oncotarget.21069] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 07/19/2017] [Indexed: 02/06/2023] Open
Abstract
MicroRNA-218 (miR-218) has been implicated in the development and progression of multiple cancers. We investigated the role of miR-218 in ovarian cancer progression. We found that miR-218 expression levels were lower in ovarian cancer tissues and cell lines than in adjacent normal tissues or a normal ovarian cell line.miR-218 levels associated with International Federation of Gynecology and Obstetrics (FIGO) stage and lymph node metastasis. Exogenous expression of miR-218 inhibited cell proliferation, colony formation, migration, and invasion in vitro and suppressed tumor growth in a tumor-bearing nude mouse model. Runt-related transcription factor 2 (RUNX2) was identified as a direct functional target of miR-218, and its expression was inversely correlated with miR-218 expression in ovarian cancer tissues. RUNX2 overexpression rescued the suppressive effect of miR-218 on ovarian cancer cell proliferation, colony formation, migration, and invasion. These findings highlight an important role played bymiR-218 in the regulation of cancer growth and metastasis, in part by repressing RUNX2, and revealed the potential of miR-218 as a new therapeutic target inovarian cancer.
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Affiliation(s)
- Na Li
- Department of Gynecology and Obstetrics, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Lufei Wang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin 130022, PR China
| | - Guangyun Tan
- Department of Immunology, Institute of Translational Medicine of The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Zhiheng Guo
- Department of Gynecology and Obstetrics, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Lei Liu
- Department of Gynecology and Obstetrics, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Ming Yang
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Jin He
- Department of Gynecology and Obstetrics, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
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Dokainish H, Teo K, Zhu J, Roy A, AlHabib KF, ElSayed A, Palileo-Villaneuva L, Lopez-Jaramillo P, Karaye K, Yusoff K, Orlandini A, Sliwa K, Mondo C, Lanas F, Prabhakaran D, Badr A, Elmaghawry M, Damasceno A, Tibazarwa K, Belley-Cote E, Balasubramanian K, Islam S, Yacoub MH, Huffman MD, Harkness K, Grinvalds A, McKelvie R, Bangdiwala SI, Yusuf S, Campos R, Chacón C, Cursack G, Diez F, Escobar C, Garcia C, Vilamajo OG, Hominal M, Ingaramo A, Kucharczuk G, Pelliza M, Rojas A, Villani A, Zapata G, Bourke P, Lanas F, Nahuelpan L, Olivares C, Riquelme R, Ai F, Bai X, Chen X, Chen Y, Gao M, Ge C, He Y, Huang W, Jiang H, Liang T, Liang X, Liao Y, Liu S, Luo Y, Lu L, Qin S, Tan G, Tan H, Wang T, Wang X, Wei F, Xiao F, Zhang B, Zheng T, Mendoza JA, Anaya MB, Gomez E, de Salazar DM, Quiroz F, Rodríguez M, Sotomayor MS, Navas AT, León MB, Montalvo LF, Jaramillo ML, Patiño EP, Perugachi C, Trujillo Cruz F, Elmaghawry M, Wagdy K, Bhardwaj A, Chaturvedi V, Gokhale GK, Gupta R, Honnutagi R, Joshi P, Ladhani S, Negi P, Roy A, Reddy N, Abdullah A, Hassan MA, Balasinga M, Kasim S, Tan W, Yusoff K, Damasceno A, Banze R, Calua E, Novela C, Chemane J, Akintunde A, Ansa V, Gbadamosi H, Karaye K, Mbakwem A, Mohammed S, Nwafor E, Ojji D, Olunuga T, Sa'idu BOH, Umuerri E, Alcaraz J, Palileo-Villanueva L, Palomares E, Timonera MR, Badr A, Alghamdi S, Alhabib K, Almasood A, Alsaif S, Elasfar A, Ghabashi A, Mimish L, Bester F, Kelbe D, Klug E, Sliwa K, Tibarzawa K, Abdalla O, Dimitri M, Mustafa H, Osman O, Saad A, Mondo C. Global mortality variations in patients with heart failure: results from the International Congestive Heart Failure (INTER-CHF) prospective cohort study. The Lancet Global Health 2017; 5:e665-e672. [DOI: 10.1016/s2214-109x(17)30196-1] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 04/10/2017] [Accepted: 04/26/2017] [Indexed: 12/13/2022]
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Lv H, Liu Q, Zhou J, Tan G, Deng X, Ci X. Daphnetin-mediated Nrf2 antioxidant signaling pathways ameliorate tert-butyl hydroperoxide (t-BHP)-induced mitochondrial dysfunction and cell death. Free Radic Biol Med 2017; 106:38-52. [PMID: 28188924 DOI: 10.1016/j.freeradbiomed.2017.02.016] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 01/25/2017] [Accepted: 02/06/2017] [Indexed: 12/28/2022]
Abstract
Daphnetin (Daph), a natural coumarin derivative isolated from plants of the Genus Daphne, possesses abundant biological activities, such as anti-inflammatory, antioxidant and anticancer properties. In the present study, we focused on investigating the protective effect of Daph against tert-butyl hydroperoxide (t-BHP)-induced oxidative damage, mitochondrial dysfunction and the involvement of underlying molecular mechanisms. Our findings indicated that Daph effectively inhibited t-BHP-stimulated cytotoxicity, cell apoptosis, and mitochondrial dysfunction, which are associated with suppressed reactive oxygen species (ROS) generation, decreased malondialdehyde (MDA) formation, increased superoxide dismutase (SOD) levels and glutathione (GSH)/GSSG (oxidized GSH) ratio. Further investigation indicated that Daph significantly suppressed cytochrome c release and NLRP3 inflammasome activation and modulated apoptosis-related protein Bcl-2, Bax, and caspase-3 expression. Moreover, Daph dramatically induced the expression of the glutamate-cysteine ligase modifier (GCLM) subunit and the glutamate-cysteine ligase catalytic (GCLC) subunit, heme oxygenase-1 (HO-1), and NAD (P) H: quinone oxidoreductase (NQO1), which is largely dependent on upregulating the nuclear factor-erythroid 2-related factor 2 (Nrf2) nuclear translocation, reducing the Keap1 protein expression, and strengthening the antioxidant response element (ARE) promoter activity. Additionally, Daph remarkably activated a c-Jun NH2-terminal kinase (JNK) and extracellular signal-regulated kinase (ERK) phosphorylation, but ERK and JNK inhibitor pretreatment exhibited an evident decrease of the level of Daph-enhanced Nrf2 nuclear translocation. Furthermore, Daph exposure suppressed t-BHP-induced cytotoxicity and ROS overproduction, which are mostly blocked in Nrf2 knockout RAW 264.7 cells and peritoneal macrophages. Accordingly, Daph exhibited protective roles against t-BHP-triggered oxidative damage and mitochondrial dysfunction by the upregulation of Nrf2 antioxidant signaling pathways, which may be involved in the activation of JNK and ERK.
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Affiliation(s)
- Hongming Lv
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China; Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine. Jilin University, Changchun 130061, China
| | - Qinmei Liu
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China
| | - Junfeng Zhou
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China
| | - Guangyun Tan
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China
| | - Xuming Deng
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China; Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine. Jilin University, Changchun 130061, China
| | - Xinxin Ci
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China.
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Tan G, Seeliger M, Cohen J. Abstract P1-08-12: p53 status and 17q21.3 amplicon formation in HER2-positive breast cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p1-08-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Breast cancers that overexpress HER2/neu are associated with poor clinical outcome. Treatment of HER2-positive breast cancers with trastuzumab, a monoclonal antibody that antagonizes HER2 receptor signaling, increases patient overall and disease-free survival. While targeted therapy is reasonably effective, resistance to trastuzumab remains a problem, particularly in the case of metastatic disease. Tumor suppressor p53 is the most commonly mutated gene in human cancer and mutations that lead to the stabilization and accumulation of p53 in HER2-positive breast cancers are associated with worse clinical outcome. Another feature of HER2-enriched breast cancers are amplifications of the HER2 locus on chromosome 17q21.3.
Table 1 Wildtype p53Mutated p53No amplification12.8%63.9%17q21.3 amplification13.1%8.7%Table 1: Among 58 cases, Her2-positive tumors with mutated p53 (n=37, 63.9%) occurred at a 4.9-fold higher frequency than amplification of the 17q21.3 gene set (n=8, 13.1%), with significant mutual exclusivity (p=0.005), The patient genomic data set was obtained from the Breast Invasive Carcinoma Study conducted by the TCGA Network (Nature, 2012) and visualized using cBioPortal (MSKCC), Copy alterations of genes were assessed using GISTIC2.0 (Broad Institute) via cBioPortal.
We studied the genomic profiles of 58 HER2-positive breast tumor samples using cBioPortal to determine p53 mutation status. 74.1% of samples expressed mutant p53 and a large fraction of mutations occurred in the key DNA binding domain. We assessed the amplification status of 24 genes within the chromosome 17q21.3 locus as an indicator of amplicon formation, and found that 21.8% of breast tumors demonstrated copy number amplification (Table 2). Mutant p53 tumors with no amplicon formation occurred 5 times more frequently than tumors with only 17q21.3 amplicon formation. These alterations tended to occur exclusive of one another (p=0.005, Table 1). Separately, using gene expression data from Kaplan-Meier Plotter, we observed that alterations in gene expression within the 17q21.3 amplicon can have differential effects on the survival of HER2-positive breast cancer patients (Table 2).
Table 217q21.3 Gene SetHazard RatioP-valueCOL1A11.760.01MBTD10.530.01SPATA200.650.04UBE2Z0.680.07EME10.650.08Table 2: List of relevant genes within the chromosome 17q21.3 amplicon. Genes in this amplicon can influence both beneficial and hazardous survival outcomes in HER2-positive breast cancer patients (n=208). Hazard ratios (HR) were determined from gene expression data available through Kaplan-Meier Plotter (Gyorffy, 2010).
Our data shows that HER2-positive breast cancers can be divided into p53 mutant and non-mutant subsets with p53 mutations relatively exclusive to 17q21.3 gene amplification. However, p53 mutation status and 17q21.3 copy number have a variety of effects on patient outcome. We are interested in understanding the interaction between these two genetic alterations and whether subdividing HER2-positive breast cancer into these subtypes will improve our ability to provide effective therapy to patients.
Citation Format: Tan G, Seeliger M, Cohen J. p53 status and 17q21.3 amplicon formation in HER2-positive breast cancer [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P1-08-12.
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Affiliation(s)
- G Tan
- Stony Brook University, Stony Brook, NY
| | | | - J Cohen
- Stony Brook University, Stony Brook, NY
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Tan G, Xiao Q, Song H, Ma F, Xu F, Peng D, Li N, Wang X, Niu J, Gao P, Qin FXF, Cheng G. Type I IFN augments IL-27-dependent TRIM25 expression to inhibit HBV replication. Cell Mol Immunol 2017; 15:272-281. [PMID: 28194021 DOI: 10.1038/cmi.2016.67] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/30/2016] [Accepted: 11/30/2016] [Indexed: 12/17/2022] Open
Abstract
Hepatitis B virus (HBV) can cause chronic hepatitis B, which may lead to cirrhosis and liver cancer. Type I interferon (IFN) is an approved drug for the treatment of chronic hepatitis B. However, the fundamental mechanisms of antiviral action by type I IFN and the downstream signaling pathway are unclear. TRIM25 is an IFN-stimulated gene (ISG) that has an important role in RIG-I ubiquitination and activation. Whether TRIM25 is induced in liver cells by type I IFN to mediate anti-HBV function remains unclear. Here we report that interleukin-27 (IL-27) has a critical role in IFN-induced TRIM25 upregulation. TRIM25 induction requires both STAT1 and STAT3. In TRIM25 knockout HepG2 cells, type I IFN production was consistently attenuated and HBV replication was increased, whereas overexpression of TRIM25 in HepG2 cells resulted in elevated IFN production and reduced HBV replication. More interestingly, we found that TRIM25 expression was downregulated in HBV patients and the addition of serum samples from HBV patients could inhibit TRIM25 expression in HepG2 cells, suggesting that HBV might have involved a mechanism to inhibit antiviral ISG expression and induce IFN resistance. Collectively, our results demonstrate that type I IFN -induced TRIM25 is an important factor in inhibiting HBV replication, and the IFN-IL-27-TRIM25 axis may represent a new target for treating HBV infection.
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Affiliation(s)
- Guangyun Tan
- Department of Immunology, Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, Jilin 130061, PR China
| | - Qingfei Xiao
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Hongxiao Song
- Department of Immunology, Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, Jilin 130061, PR China
| | - Feng Ma
- Center of Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, PR China.,Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, PR China
| | - Fengchao Xu
- Department of Immunology, Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, Jilin 130061, PR China
| | - Di Peng
- Center of Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, PR China.,Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, PR China
| | - Na Li
- Department of Obstetrics, The First Hospital, Jilin University, Changchun, Jilin 130021, PR China
| | - Xiaosong Wang
- Department of Immunology, Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, Jilin 130061, PR China
| | - Junqi Niu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Pujun Gao
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - F Xiao-Feng Qin
- Department of Immunology, Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, Jilin 130061, PR China.,Center of Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, PR China.,Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, PR China
| | - Genhong Cheng
- Department of Immunology, Institute of Translational Medicine, The First Hospital, Jilin University, Changchun, Jilin 130061, PR China.,Center of Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, PR China.,Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, PR China.,Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA 90095, USA
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Yu X, Huang Y, Guo Q, Wang Y, Ma H, Zhao Y, Wang Y, Yu X, Tan G, Ma S, Wu X, Xu M, Zhang S, Shang H, Xin S, Zhang X, Wang J, Li L, Wu S, Zhao S, Yang J, Wen H, Sun H, Xiong Y, Wang Y, He J, Liu Q, Li J, Jiang J, Xue F, Han W, Wang Z, Wang Y, Hu Y, Wang L. Clinical motivation and the surgical safety checklist. Br J Surg 2017; 104:472-479. [PMID: 28158915 DOI: 10.1002/bjs.10446] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 08/09/2016] [Accepted: 11/03/2016] [Indexed: 12/17/2022]
Abstract
Abstract
Background
Although the surgical safety checklist (SSC) has been adopted worldwide, its efficacy can be diminished by poor clinical motivation. Systematic methods for improving implementation are lacking.
Methods
A multicentre prospective study was conducted in 2015 in four academic/teaching hospitals to investigate changes during revision of the SSC for content, staffing and workflow. All modifications were based on feedback from medical staff. Questionnaires were used to monitor dynamic changes in surgeons', nurses' and anaesthetists' perceptions.
Results
Complete information was obtained from 30 654 operations in which the newly developed SSC system was used. Implementation quality was evaluated in 1852 operations before, and 1822 after the changes. The revised SSC content was simplified from 34 to 22 items. Anaesthetists achieved widespread recommendation as SSC coordinators. Completion rates of all stages reached over 80·0 per cent at all sites (compared with 10·2–59·5 per cent at the sign-out stage in the baseline survey). There was a significant change in doctors who participated (for example, surgeon: from 24·6 to 64·5 per cent at one site). The rates of hasty (15·1–33·7 per cent) or casual (0·4–4·4 per cent) checking decreased to less than 6·0 per cent overall. Perceptions about the SSC were studied from 2211 forms. They improved, with a converging trend among the three different professions, to a uniform 80·0 per cent agreeing on the need for its regular use.
Conclusion
Medical staff members are both the users and owners of the SSC. High-quality SSC implementation can be achieved by clinically motivated adaptation.
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Affiliation(s)
- X Yu
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Y Huang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Q Guo
- Xiangya Hospital, Central South University, Changsha, China
| | - Y Wang
- Qinghai Provincial People's Hospital, Xining, China
| | - H Ma
- First Hospital of China Medical University, Shenyang, China
| | - Y Zhao
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Y Wang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - X Yu
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - G Tan
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - S Ma
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - X Wu
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - M Xu
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - S Zhang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - H Shang
- First Hospital of ChinaMedical University, Shenyang, China
| | - S Xin
- First Hospital of ChinaMedical University, Shenyang, China
| | - X Zhang
- First Hospital of ChinaMedical University, Shenyang, China
| | - J Wang
- First Hospital of ChinaMedical University, Shenyang, China
| | - L Li
- First Hospital of ChinaMedical University, Shenyang, China
| | - S Wu
- Qinghai Provincial People's Hospital, Xining, China
| | - S Zhao
- Qinghai Provincial People's Hospital, Xining, China
| | - J Yang
- Qinghai Provincial People's Hospital, Xining, China
| | - H Wen
- Qinghai Provincial People's Hospital, Xining, China
| | - H Sun
- Xiangya Hospital, Central South University, Changsha, China
| | - Y Xiong
- Xiangya Hospital, Central South University, Changsha, China
| | - Y Wang
- Xiangya Hospital, Central South University, Changsha, China
| | - J He
- Xiangya Hospital, Central South University, Changsha, China
| | - Q Liu
- Xiangya Hospital, Central South University, Changsha, China
| | - J Li
- Xiangya Hospital, Central South University, Changsha, China
| | - J Jiang
- Institute of Basic Medicine Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - F Xue
- Institute of Basic Medicine Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - W Han
- Institute of Basic Medicine Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Z Wang
- Institute of Basic Medicine Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Y Wang
- Institute of Basic Medicine Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Y Hu
- Institute of Basic Medicine Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - L Wang
- Institute of Basic Medicine Sciences, Chinese Academy of Medical Sciences, Beijing, China
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Dawn L, Smith C, Tan G, Henry G. 195 Molecular Analysis using PCR to Amplify Extracted 16S Ribosomal DNA Appears to Identify Biofilm on Penile Prosthesis In-Vivo. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.12.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Smith C, Dawn L, Tan G, Henry G. 203 Molecular Analysis Using PCR to Amplify Extracted 16S Ribosomal DNA Appears to Identify Antibiotic Sensitivities / Resistance to Biofilm Found on Penile Prosthesis In-Vivo. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.12.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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