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Furuya H, Nguyen CT, Chan T, Marusina AI, Merleev AA, Garcia-Hernandez MDLL, Hsieh SL, Tsokos GC, Ritchlin CT, Tagkopoulos I, Maverakis E, Adamopoulos IE. IL-23 induces CLEC5A + IL-17A + neutrophils and elicit skin inflammation associated with psoriatic arthritis. J Autoimmun 2024; 143:103167. [PMID: 38301504 PMCID: PMC10981569 DOI: 10.1016/j.jaut.2024.103167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 02/03/2024]
Abstract
IL-23-activation of IL-17 producing T cells is involved in many rheumatic diseases. Herein, we investigate the role of IL-23 in the activation of myeloid cell subsets that contribute to skin inflammation in mice and man. IL-23 gene transfer in WT, IL-23RGFP reporter mice and subsequent analysis with spectral cytometry show that IL-23 regulates early innate immune events by inducing the expansion of a myeloid MDL1+CD11b+Ly6G+ population that dictates epidermal hyperplasia, acanthosis, and parakeratosis; hallmark pathologic features of psoriasis. Genetic ablation of MDL-1, a major PU.1 transcriptional target during myeloid differentiation exclusively expressed in myeloid cells, completely prevents IL-23-pathology. Moreover, we show that IL-23-induced myeloid subsets are also capable of producing IL-17A and IL-23R+MDL1+ cells are present in the involved skin of psoriasis patients and gene expression correlations between IL-23 and MDL-1 have been validated in multiple patient cohorts. Collectively, our data demonstrate a novel role of IL-23 in MDL-1-myelopoiesis that is responsible for skin inflammation and related pathologies. Our data open a new avenue of investigations regarding the role of IL-23 in the activation of myeloid immunoreceptors and their role in autoimmunity.
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Affiliation(s)
- Hiroki Furuya
- Department of Rheumatology and Clinical Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Cuong Thach Nguyen
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, USA
| | - Trevor Chan
- Department of Computer Science, University of California, Davis, CA, USA; Genome Center, University of California, Davis, CA, USA
| | - Alina I Marusina
- Department of Dermatology, University of California, Davis, Sacramento, USA
| | | | | | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Nankang, Taipei, Taiwan
| | - George C Tsokos
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, USA
| | - Christopher T Ritchlin
- Division of Allergy, Immunology & Rheumatology, University of Rochester Medical School, NY, USA
| | - Ilias Tagkopoulos
- Department of Computer Science, University of California, Davis, CA, USA; Process Integration and Predictive Analytics, PIPA LLC, CA, USA
| | - Emanual Maverakis
- Department of Dermatology, University of California, Davis, Sacramento, USA
| | - Iannis E Adamopoulos
- Department of Rheumatology and Clinical Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA; Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, USA.
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Barrios AA, Mouhape C, Schreiber L, Zhang L, Nell J, Suárez-Martins M, Schlapp G, Meikle MN, Mulet AP, Hsu TL, Hsieh SL, Mourglia-Ettlin G, González C, Crispo M, Barth TFE, Casaravilla C, Jenkins SJ, Díaz Á. Correction for Barrios et al., "Mucins Shed from the Laminated Layer in Cystic Echinococcosis are Captured by Kupffer Cells via the Lectin Receptor Clec4F". Infect Immun 2023; 91:e0029923. [PMID: 37847030 PMCID: PMC10652980 DOI: 10.1128/iai.00299-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023] Open
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Furuya H, Nguyen CT, Gu R, Hsieh SL, Maverakis E, Adamopoulos IE. Interleukin-23 Regulates Inflammatory Osteoclastogenesis via Activation of CLEC5A(+) Osteoclast Precursors. Arthritis Rheumatol 2023; 75:1477-1489. [PMID: 36787107 PMCID: PMC10423744 DOI: 10.1002/art.42478] [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: 07/15/2022] [Revised: 01/12/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023]
Abstract
OBJECTIVE To investigate the role of interleukin-23 (IL-23) in pathologic bone remodeling in inflammatory arthritis. METHODS In this study we investigated the role of IL-23 in osteoclast differentiation and activation using in vivo gene transfer techniques in wild-type and myeloid DNAX-activation protein 12-associating lectin-1 (MDL-1)-deficient mice, and by performing in vitro and in vivo osteoclastogenesis assays using spectral flow cytometry, micro-computed tomography analysis, Western blotting, and immunoprecipitation. RESULTS Herein, we show that IL-23 induces the expansion of a myeloid osteoclast precursor population and supports osteoclastogenesis and bone resorption in inflammatory arthritis. Genetic ablation of C-type lectin domain family member 5A, also known as MDL-1, prevents the induction of osteoclast precursors by IL-23 that is associated with bone destruction, as commonly observed in inflammatory arthritis. Moreover, osteoclasts derived from the bone marrow of MDL-1-deficient mice showed impaired osteoclastogenesis, and MDL-1-/- mice had increased bone mineral density. CONCLUSION Our data show that IL-23 signaling regulates the availability of osteoclast precursors in inflammatory arthritis that could be effectively targeted for the treatment of inflammatory bone loss in inflammatory arthritis.
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Affiliation(s)
- Hiroki Furuya
- Department of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School
| | - Cuong Thach Nguyen
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis
| | - Ran Gu
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei, Taiwan
| | - Emanual Maverakis
- Department of Dermatology, University of California, Davis, Sacramento, CA, USA
| | - Iannis E Adamopoulos
- Department of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis
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Liao TL, Chen YM, Tang KT, Yang YY, Chen DY, Chan TH, Tsai HJ, Hsieh SL. CLEC18A Impairs Phagocytosis by Reducing FcγRIIA Expression and Arresting Autophagosome-Lysosome Fusion. Microbiol Spectr 2023; 11:e0290322. [PMID: 37154715 PMCID: PMC10269929 DOI: 10.1128/spectrum.02903-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 03/28/2023] [Indexed: 05/10/2023] Open
Abstract
Mixed cryoglobulinemia (MC) is a hepatitis C virus (HCV)-related extrahepatic manifestation that is characterized by the abnormal presence of immune complexes (ICs). This may be due to the reduced uptake and clearance of ICs. The C-type lectin member 18A (CLEC18A) is a secretory protein that is expressed abundantly in hepatocytes. We previously observed that CLEC18A increased significantly in the phagocytes and sera of patients with HCV, particularly those with MC. Herein, we explored the biological functions of CLEC18A in the MC syndrome development of patients with HCV by using an in vitro cell-based assay with quantitative reverse transcription-PCR, immunoblotting, immunofluorescence, flow cytometry, and enzyme-linked immunosorbent assays. HCV infection or Toll-like receptor 3/7/8 activation could induce CLEC18A expression in Huh7.5 cells. Upregulated CLEC18A interacts with Rab5 and Rab7 and enhances type I/III interferon production to inhibit HCV replication in hepatocytes. However, overexpressed CLEC18A suppressed phagocytic activity in phagocytes. Significantly decreased levels of the Fc gamma receptor (FcγR) IIA were found in the neutrophils of HCV patients, particularly in those with MC (P < 0.005). We demonstrated that CLEC18A could inhibit FcγRIIA expression in a dose-dependent manner through the production of NOX-2-dependent reactive oxygen species to impair the uptake of ICs. Additionally, CLEC18A suppresses the Rab7 expression that is induced by starvation. Overexpressed CLEC18A does not affect autophagosome formation but does reduce the recruitment of Rab7 to autophagosomes, thereby retarding the maturation of autophagosomes and affecting autophagosome-lysosome fusion. We offer a novel molecular machinery with which to understand the association of HCV infection with autoimmunity and propose that CLEC18A may act as a candidate biomarker for HCV-associated MC. IMPORTANCE During infection, the host immune system produces cellular factors to protect against pathogen invasion. However, when the immune response overreacts and there is dysregulated cytokine homeostasis, autoimmunity occurs following an infection. We identified a cellular factor that is involved in HCV-related extrahepatic manifestation, namely, CLEC18A, which is expressed abundantly in hepatocytes and phagocytes. It inhibits HCV replication in hepatocytes by interacting with Rab5/7 and enhancing type I/III IFN expression. However, overexpressed CLEC18A inhibited FcγRIIA expression in phagocytes to impair phagocytosis. Furthermore, the interaction between CLEC18A and Rab5/7 may reduce the recruitment of Rab7 to autophagosomes and thereby retard autophagosome maturation and cause immune complex accumulation. A decreasing trend in CLEC18A levels that was accompanied by reduced HCV RNA titers and diminished cryoglobulin was observed in the sera of HCV-MC patients after direct-acting antiviral therapy. CLEC18A may be used for the evaluation of anti-HCV therapeutic drug effects and could be a potential predisposing factor for the development of MC syndrome.
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Affiliation(s)
- Tsai-Ling Liao
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan
- Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Ming Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan
- Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
- Division of Allergy, Immunology and Rheumatology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Kuo-Tung Tang
- Division of Allergy, Immunology and Rheumatology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ying-Ying Yang
- Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Der-Yuan Chen
- Rheumatology and Immunology Center, China Medical University Hospital, Taichung, Taiwan
- Translational Medicine Laboratory, Rheumatology and Immunology Center, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Tsung-Hsien Chan
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Hui-Ju Tsai
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
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Barrios AA, Mouhape C, Schreiber L, Zhang L, Nell J, Suárez-Martins M, Schlapp G, Meikle MN, Mulet AP, Hsu TL, Hsieh SL, Mourglia-Ettlin G, González C, Crispo M, Barth TFE, Casaravilla C, Jenkins SJ, Díaz Á. Mucins Shed from the Laminated Layer in Cystic Echinococcosis Are Captured by Kupffer Cells via the Lectin Receptor Clec4F. Infect Immun 2023; 91:e0003123. [PMID: 37162364 PMCID: PMC10269144 DOI: 10.1128/iai.00031-23] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/17/2023] [Indexed: 05/11/2023] Open
Abstract
Cystic echinococcosis is caused by the larval stages (hydatids) of cestode parasites belonging to the species cluster Echinococcus granulosus sensu lato, with E. granulosus sensu stricto being the main infecting species. Hydatids are bladderlike structures that attain large sizes within various internal organs of livestock ungulates and humans. Hydatids are protected by the massive acellular laminated layer (LL), composed mainly of mucins. Parasite growth requires LL turnover, and abundant LL-derived particles are found at infection sites in infected humans, raising the question of how LL materials are dealt with by the hosts. In this article, we show that E. granulosus sensu stricto LL mucins injected into mice are taken up by Kupffer cells, the liver macrophages exposed to the vascular space. This uptake is largely dependent on the intact mucin glycans and on Clec4F, a C-type lectin receptor which, in rodents, is selectively expressed in Kupffer cells. This uptake mechanism operates on mucins injected both in soluble form intravenously (i.v.) and in particulate form intraperitoneally (i.p.). In mice harboring intraperitoneal infections by the same species, LL mucins were found essentially only at the infection site and in the liver, where they were taken up by Kupffer cells via Clec4F. Therefore, shed LL materials circulate in the host, and Kupffer cells can act as a sink for these materials, even when the parasite grows in sites other than the liver.
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Affiliation(s)
- Anabella A. Barrios
- Área Inmunología, Departamento de Biociencias (Facultad de Química) and Cátedra de Inmunología, Instituto de Química Biológica (Facultad de Ciencias), Universidad de la República, Montevideo, Uruguay
| | - Camila Mouhape
- Área Inmunología, Departamento de Biociencias (Facultad de Química) and Cátedra de Inmunología, Instituto de Química Biológica (Facultad de Ciencias), Universidad de la República, Montevideo, Uruguay
| | | | - Linyun Zhang
- Institute of Pathology, University Ulm, Ulm, Germany
| | - Juliane Nell
- Institute of Pathology, University Ulm, Ulm, Germany
| | - Mariana Suárez-Martins
- Área Inmunología, Departamento de Biociencias (Facultad de Química) and Cátedra de Inmunología, Instituto de Química Biológica (Facultad de Ciencias), Universidad de la República, Montevideo, Uruguay
| | - Geraldine Schlapp
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - María Noel Meikle
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Ana Paula Mulet
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Tsui-Ling Hsu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | | | - Gustavo Mourglia-Ettlin
- Área Inmunología, Departamento de Biociencias (Facultad de Química) and Cátedra de Inmunología, Instituto de Química Biológica (Facultad de Ciencias), Universidad de la República, Montevideo, Uruguay
| | | | - Martina Crispo
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | | | - Cecilia Casaravilla
- Área Inmunología, Departamento de Biociencias (Facultad de Química) and Cátedra de Inmunología, Instituto de Química Biológica (Facultad de Ciencias), Universidad de la República, Montevideo, Uruguay
| | - Stephen J. Jenkins
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Álvaro Díaz
- Área Inmunología, Departamento de Biociencias (Facultad de Química) and Cátedra de Inmunología, Instituto de Química Biológica (Facultad de Ciencias), Universidad de la República, Montevideo, Uruguay
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Sung PS, Sun CP, Tao MH, Hsieh SL. Inhibition of SARS-CoV-2-mediated thromboinflammation by CLEC2.Fc. EMBO Mol Med 2023:e16351. [PMID: 37211986 DOI: 10.15252/emmm.202216351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 05/05/2023] [Accepted: 05/05/2023] [Indexed: 05/23/2023] Open
Abstract
Thromboinflammation is the major cause of morbidity and mortality in COVID-19 patients, and post-mortem examination demonstrates the presence of platelet-rich thrombi and microangiopathy in visceral organs. Moreover, persistent microclots were detected in both acute COVID-19 and long COVID plasma samples. However, the molecular mechanism of SARS-CoV-2-induced thromboinflammation is still unclear. We found that the spleen tyrosine kinase (Syk)-coupled C-type lectin member 2 (CLEC2), which was highly expressed in platelets and alveolar macrophages, interacted with the receptor-binding domain (RBD) of SARS-CoV-2 spike protein (SARS-CoV-2 RBD) directly. Unlike the thread-like NETs, SARS-CoV-2-induced aggregated NET formation in the presence of wild-type (WT), but not CLEC2-deficient platelets. Furthermore, SARS-CoV-2 spike pseudotyped lentivirus was able to induce NET formation via CLEC2, indicating SARS-CoV-2 RBD engaged CLEC2 to activate platelets to enhance NET formation. Administration of CLEC2.Fc inhibited SARS-CoV-2-induced NET formation and thromboinflammation in AAV-ACE2-infected mice. Thus, CLEC2 is a novel pattern recognition receptor for SARS-CoV-2, and CLEC2.Fc and may become a promising therapeutic agent to inhibit SARS-CoV-2-induced thromboinflammation and reduced the risk of post-acute sequelae of COVID-19 (PASC) in the future.
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Affiliation(s)
- Pei-Shan Sung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Cheng-Pu Sun
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Mi-Hua Tao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
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Kuo NR, Hou MC, Chu WC, Yang YY, Huang CC, Li TH, Lee TY, Liu CW, Liao TL, Hsieh SL, Lin HC. Low lymphocyte-to-monocyte ratio, calcitriol level, and CD206 level predict the development of acute-on-chronic liver failure in patients cirrhosis with acute decompensation. J Chin Med Assoc 2023; 86:265-273. [PMID: 36727703 DOI: 10.1097/jcma.0000000000000867] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Cirrhosis-related acute-on-chronic liver failure (ACLF) is associated with high morbidity and mortality rates. Prognostic models of ACLF have been developed; however, few studies have focused on the occurrence of ACLF. This study aimed to identify the factors that predict the development of ACLF, hepatic encephalopathy (HE), and infection in patients with cirrhosis. METHODS Patients with cirrhosis were enrolled, and the serum levels of calcitriol, Cluster of Differentiation 26 (CD206), and macrophage-inducible lectin receptor (Mincle) were measured, and lymphocyte-to-monocyte ratio (LMR) and neutrophil-to-lymphocyte ratio were calculated; all the patients were tracked for 6 months. A generalized estimating equation (GEE) was used to assess the factors associated with ACLF development, HE, and infection. The aforementioned model was derived based on immunological markers, and receiver operating characteristic analysis with area under the curve (AUC) was adopted to evaluate accuracy. RESULTS After screening 325 patients with cirrhosis, 65 patients were eligible. In the GEE model, low levels of calcitriol (odds ratio [OR] = 3.259; 95% confidence interval [CI] = 1.118-8.929) and CD206 (OR = 2.666; 95% CI = 1.082-6.567) were associated with the development of ACLF, and the LMR was a protective factor (OR = 0.356; 95% CI = 0.147-0.861). Low calcitriol levels were a risk factor for HE (OR = 3.827) and infection (OR = 2.489). LMR was found to be a protective factor against HE (OR = 0.388). An immunological model for the discrimination of ACLF development within 6 months was proposed, with an AUC of 0.734 (95% CI = 0.598-0.869). CONCLUSION Single and combined immunological markers, including low LMR and low levels of calcitriol and CD206, were promising for early prediction of the development of ACLF, HE, and infection in patients with cirrhosis.
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Affiliation(s)
- Nai-Rong Kuo
- Department of Medical Education, Medical Innovation and Research Office, Clinical Innovation Center, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Ming-Chih Hou
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Wei-Chi Chu
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Ying-Ying Yang
- Department of Medical Education, Medical Innovation and Research Office, Clinical Innovation Center, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Chia-Chang Huang
- Department of Medical Education, Medical Innovation and Research Office, Clinical Innovation Center, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Tzu-Hao Li
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan, ROC
| | - Tzung-Yan Lee
- Graduate Institute of Traditional Chinese Medicine, Linkou Chang Guang Memorial Hospital, Taoyuan, Taiwan, ROC
| | - Chih-Wei Liu
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Tsai-Ling Liao
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Shie-Liang Hsieh
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Genomics Research Center, Academia Sinica, Taipei, Taiwan, ROC
| | - Han-Chieh Lin
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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Wang HW, Li HH, Wu SC, Tang CK, Yu HY, Chang YC, Sung PS, Liu WL, Su MP, Yu GY, Huang LR, Chen CH, Hsieh SL. CLEC5A mediates Zika virus-induced testicular damage. J Biomed Sci 2023; 30:12. [PMID: 36803804 PMCID: PMC9936774 DOI: 10.1186/s12929-023-00906-6] [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: 10/01/2022] [Accepted: 02/07/2023] [Indexed: 02/19/2023] Open
Abstract
BACKGROUND Zika virus (ZIKV) infection is clinically known to induce testicular swelling, termed orchitis, and potentially impact male sterility, but the underlying mechanisms remain unclear. Previous reports suggested that C-type lectins play important roles in mediating virus-induced inflammatory reactions and pathogenesis. We thus investigated whether C-type lectins modulate ZIKV-induced testicular damage. METHODS C-type lectin domain family 5 member A (CLEC5A) knockout mice were generated in a STAT1-deficient immunocompromised background (denoted clec5a-/-stat1-/-) to enable testing of the role played by CLEC5A after ZIKV infection in a mosquito-to-mouse disease model. Following ZIKV infection, mice were subjected to an array of analyses to evaluate testicular damage, including ZIKV infectivity and neutrophil infiltration estimation via quantitative RT-PCR or histology and immunohistochemistry, inflammatory cytokine and testosterone detection, and spermatozoon counting. Furthermore, DNAX-activating proteins for 12 kDa (DAP12) knockout mice (dap12-/-stat1-/-) were generated and used to evaluate ZIKV infectivity, inflammation, and spermatozoa function in order to investigate the potential mechanisms engaged by CLEC5A. RESULTS Compared to experiments conducted in ZIKV-infected stat1-/- mice, infected clec5a-/-stat1-/- mice showed reductions in testicular ZIKV titer, local inflammation and apoptosis in testis and epididymis, neutrophil invasion, and sperm count and motility. CLEC5A, a myeloid pattern recognition receptor, therefore appears involved in the pathogenesis of ZIKV-induced orchitis and oligospermia. Furthermore, DAP12 expression was found to be decreased in the testis and epididymis tissues of clec5a-/-stat1-/- mice. As for CLEC5A deficient mice, ZIKV-infected DAP12-deficient mice also showed reductions in testicular ZIKV titer and local inflammation, as well as improved spermatozoa function, as compared to controls. CLEC5A-associated DAP12 signaling appears to in part regulate ZIKV-induced testicular damage. CONCLUSIONS Our analyses reveal a critical role for CLEC5A in ZIKV-induced proinflammatory responses, as CLEC5A enables leukocytes to infiltrate past the blood-testis barrier and induce testicular and epididymal tissue damage. CLEC5A is thus a potential therapeutic target for the prevention of injuries to male reproductive organs in ZIKV patients.
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Affiliation(s)
- Hsin-Wei Wang
- grid.59784.370000000406229172National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, 350401 Taiwan ,grid.59784.370000000406229172National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Zhunan, 350401 Taiwan
| | - Hsing-Han Li
- grid.59784.370000000406229172National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, 350401 Taiwan ,grid.59784.370000000406229172National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Zhunan, 350401 Taiwan ,grid.266100.30000 0001 2107 4242Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA 92093 USA
| | - Shih-Cheng Wu
- grid.59784.370000000406229172National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, 350401 Taiwan ,grid.19188.390000 0004 0546 0241Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, 10048 Taiwan ,grid.412094.a0000 0004 0572 7815Department of Laboratory Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, 10021 Taiwan
| | - Cheng-Kang Tang
- grid.59784.370000000406229172National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, 350401 Taiwan ,grid.260542.70000 0004 0532 3749Program of Plant Protection and Health, Academy of Circular Economy, National Chung Hsing University, Taichung, 402202 Taiwan
| | - Hui-Ying Yu
- grid.59784.370000000406229172National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, 350401 Taiwan ,grid.19188.390000 0004 0546 0241Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 10617 Taiwan
| | - Ya-Chen Chang
- grid.59784.370000000406229172National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, 350401 Taiwan
| | - Pei-Shan Sung
- grid.28665.3f0000 0001 2287 1366Genomics Research Center, Academia Sinica, Taipei, 11529 Taiwan
| | - Wei-Liang Liu
- grid.59784.370000000406229172National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Zhunan, 350401 Taiwan
| | - Matthew P. Su
- grid.27476.300000 0001 0943 978XDepartment of Biological Science, Nagoya University, Nagoya, 464-8602 Japan ,grid.27476.300000 0001 0943 978XInstitute for Advanced Research, Nagoya University, Nagoya, 464-8601 Japan
| | - Guann-Yi Yu
- grid.59784.370000000406229172National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, 350401 Taiwan
| | - Li-Rung Huang
- grid.59784.370000000406229172Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, 350401 Taiwan
| | - Chun-Hong Chen
- grid.59784.370000000406229172National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, 350401 Taiwan ,grid.59784.370000000406229172National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Zhunan, 350401 Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan. .,Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan. .,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, 11221, Taiwan. .,Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, 11217, Taiwan. .,Institute of Immunology, College of Medicine, National Taiwan University, Taipei, 10617, Taiwan.
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9
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Wu YH, Mo ST, Chen IT, Hsieh FY, Hsieh SL, Zhang J, Lai MZ. Caspase-8 inactivation drives autophagy-dependent inflammasome activation in myeloid cells. Sci Adv 2022; 8:eabn9912. [PMID: 36367942 PMCID: PMC9651862 DOI: 10.1126/sciadv.abn9912] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 09/27/2022] [Indexed: 06/07/2023]
Abstract
Caspase-8 activity controls the switch from cell death to pyroptosis when apoptosis and necroptosis are blocked, yet how caspase-8 inactivation induces inflammasome assembly remains unclear. We show that caspase-8 inhibition via IETD treatment in Toll-like receptor (TLR)-primed Fadd-/-Ripk3-/- myeloid cells promoted interleukin-1β (IL-1β) and IL-18 production through inflammasome activation. Caspase-8, caspase-1/11, and functional GSDMD, but not NLRP3 or RIPK1 activity, proved essential for IETD-triggered inflammasome activation. Autophagy became prominent in IETD-treated Fadd-/-Ripk3-/- macrophages, and inhibiting it attenuated IETD-induced cell death and IL-1β/IL-18 production. In contrast, inhibiting GSDMD or autophagy did not prevent IETD-induced septic shock in Fadd-/-Ripk3-/- mice, implying distinct death processes in other cell types. Cathepsin-B contributes to IETD-mediated inflammasome activation, as its inhibition or down-regulation limited IETD-elicited IL-1β production. Therefore, the autophagy and cathepsin-B axis represents one of the pathways leading to atypical inflammasome activation when apoptosis and necroptosis are suppressed and capase-8 is inhibited in myeloid cells.
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Affiliation(s)
- Yung-Hsuan Wu
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Shu-Ting Mo
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - I-Ting Chen
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Fu-Yi Hsieh
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | | | - Jinake Zhang
- Department of Microbiology and Immunology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Ming-Zong Lai
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
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10
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Sung PS, Peng YC, Yang SP, Chiu CH, Hsieh SL. CLEC5A is critical in Pseudomonas aeruginosa-induced acute lung injury. JCI Insight 2022; 7:156613. [PMID: 36048544 PMCID: PMC9676025 DOI: 10.1172/jci.insight.156613] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 08/10/2022] [Indexed: 11/30/2022] Open
Abstract
Pseudomonas aeruginosa is one of the most common nosocomial infections worldwide, and it frequently causes ventilator-associated acute pneumonia in immunocompromised patients. Abundant neutrophil extracellular traps (NETs) contribute to acute lung injury, thereby aggravating ventilator-induced lung damage. While pattern recognition receptors (PRRs) TLR4 and TLR5 are required for host defense against P. aeruginosa invasion, the PRR responsible for P. aeruginosa–induced NET formation, proinflammatory cytokine release, and acute lung injury remains unclear. We found that myeloid C-type lectin domain family 5 member A (CLEC5A) interacts with LPS of P. aeruginosa and is responsible for P. aeruginosa–induced NET formation and lung inflammation. P. aeruginosa activates CLEC5A to induce caspase-1–dependent NET formation, but it neither causes gasdermin D (GSDMD) cleavage nor contributes to P. aeruginosa–induced neutrophil death. Blockade of CLEC5A attenuates P. aeruginosa–induced NETosis and lung injury, and simultaneous administration of anti-CLEC5A mAb with ciprofloxacin increases survival rate and decreases collagen deposition in the lungs of mice challenged with a lethal dose of P. aeruginosa. Thus, CLEC5A is a promising therapeutic target to reduce ventilator-associated lung injury and fibrosis in P. aeruginosa–induced pneumonia.
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Affiliation(s)
- Pei-Shan Sung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yu-Chun Peng
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Shao-Ping Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Cheng-Hsun Chiu
- Department of Pediatrics, Chang Gung Children's Hospital, Taoyuan, Taiwan
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11
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Sung PS, Yang SP, Peng YC, Sun CP, Tao MH, Hsieh SL. CLEC5A and TLR2 are critical in SARS-CoV-2-induced NET formation and lung inflammation. J Biomed Sci 2022; 29:52. [PMID: 35820906 PMCID: PMC9277873 DOI: 10.1186/s12929-022-00832-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [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: 04/06/2022] [Accepted: 06/27/2022] [Indexed: 12/20/2022] Open
Abstract
Background Coronavirus-induced disease 19 (COVID-19) infects more than three hundred and sixty million patients worldwide, and people with severe symptoms frequently die of acute respiratory distress syndrome (ARDS). Recent studies indicated that excessive neutrophil extracellular traps (NETs) contributed to immunothrombosis, thereby leading to extensive intravascular coagulopathy and multiple organ dysfunction. Thus, understanding the mechanism of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-induced NET formation would be helpful to reduce thrombosis and prevent ARDS in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Methods We incubated SARS-CoV-2 with neutrophils in the presence or absence of platelets to observe NET formation. We further isolated extracellular vesicles from COVID-19 patients' sera (COVID-19-EVs) to examine their ability to induce NET formation. Results We demonstrated that antagonistic mAbs against anti-CLEC5A mAb and anti-TLR2 mAb can inhibit COVID-19-EVs-induced NET formation, and generated clec5a−/−/tlr2−/− mice to confirm the critical roles of CLEC5A and TLR2 in SARS-CoV-2-induced lung inflammation in vivo. We found that virus-free extracellular COVID-19 EVs induced robust NET formation via Syk-coupled C-type lectin member 5A (CLEC5A) and TLR2. Blockade of CLEC5A inhibited COVID-19 EVs-induced NETosis, and simultaneous blockade of CLEC5A and TLR2 further suppressed SARS-CoV-2-induced NETosis in vitro. Moreover, thromboinflammation was attenuated dramatically in clec5a−/−/tlr2−/− mice. Conclusions This study demonstrates that SARS-CoV-2-activated platelets produce EVs to enhance thromboinflammation via CLEC5A and TLR2, and highlight the importance of CLEC5A and TLR2 as therapeutic targets to reduce the risk of ARDS in COVID-19 patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12929-022-00832-z.
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Affiliation(s)
- Pei-Shan Sung
- Genomics Research Center, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei, 115, Taiwan
| | - Shao-Ping Yang
- Genomics Research Center, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei, 115, Taiwan
| | - Yu-Chun Peng
- Genomics Research Center, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei, 115, Taiwan
| | - Cheng-Pu Sun
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Mi-Hwa Tao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei, 115, Taiwan. .,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. .,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan. .,Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan.
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12
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Weng SC, Wen MC, Hsieh SL, Chen NJ, Tarng DC. Decoy Receptor 3 Suppresses T-Cell Priming and Promotes Apoptosis of Effector T-Cells in Acute Cell-Mediated Rejection: The Role of Reverse Signaling. Front Immunol 2022; 13:879648. [PMID: 35720343 PMCID: PMC9201909 DOI: 10.3389/fimmu.2022.879648] [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: 02/20/2022] [Accepted: 05/09/2022] [Indexed: 11/16/2022] Open
Abstract
Background Decoy receptor 3 (DcR3) belongs to the tumor necrosis factor (TNF) receptor superfamily and neutralizes TNF ligands, including FasL and TRAIL, to prevent T activation during T-cell priming. However, the cellular mechanisms underlying acute cell-mediated rejection (ACMR) remain unknown. Methods We generated DcR3 transgenic (Tg) mice and mice with high DcR3 expression (HDE) to study both in vivo and in vitro. FasR RNA knockdown in immortalized CD4+CD8+ T-cells was used to survey the role of DcR3 on FasR/Fas-associated protein with death domain (FADD)/caspase 8 pathway and its cross-link to TNF receptor-associated factor 1 (TNFR1)-associated death domain protein (TRADD) in suppressing TNFR1. TNF/TRADD knockout mice were used to show the importance of TNF adaptor protein. Results DcR3.Fc suppressed C57BL/6 female T-cell activation and transformation into CD4+CD69+, CD4+CD44+, and CD4+CD25+Foxp3+ when compared with isotype IgG1 and its co-treatment with FasL/TRAIL after exposing to bone marrow-derived dendritic cells (BMDCs) that carried alloantigen with male H-Y and minor antigenic determinant. Interleukin-17 and interferon-γ productions by BMDC-activated T-cells were lowered after co-treating with DcR3.Fc. DcR3.Fc induced effector T-cells (Teffs) and was susceptible to FasR-mediated apoptosis through the FADD/TRADD/caspase 8 pathway. After exposing to DcR3.Fc, TRADD was silenced, likely turning down the inflammatory response. The systemic effects of DcR3 Tg mice and HDE phenotype induced by the promoter of cytomegalovirus not only attenuated ACMR severity but also ameliorated the high serum creatinine and blood urea nitrogen levels even with high T-cell exposure frequencies. Besides this, DcR3 has minor biological effects on both MHC-matched and MHC-mismatched models. Conclusions High DcR3 doses protect renal tubular epithelial cells from acute T-cell attack during the T-cell priming stage via interfering with TNF ligand-mediated reverse signaling and possibly promoting Teff apoptosis through FasR upregulation. Our findings supported that the decoy receptor is involved in T-cell modulation in kidney transplant rejection.
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Affiliation(s)
- Shuo-Chun Weng
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan.,Institute of Clinical Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Center for Geriatrics and Gerontology, Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Mei-Chin Wen
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Shie-Liang Hsieh
- Institute of Clinical Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Clinical Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Nien-Jung Chen
- Institute of Microbiology and Immunology, College of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Inflammation and Immunity Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Der-Cherng Tarng
- Institute of Clinical Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department and Institute of Physiology, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Center for Intelligent Drug Systems and Smart Bio-devices, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
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13
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Hsu YW, Wong HSC, Huang WC, Yeh YH, Hsiao CD, Chang WC, Hsieh SL. Human rs75776403 polymorphism links differential phenotypic and clinical outcomes to a CLEC18A p.T151M-driven multiomics. J Biomed Sci 2022; 29:43. [PMID: 35717171 PMCID: PMC9206359 DOI: 10.1186/s12929-022-00822-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/03/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Human traits, diseases susceptibility, and clinical outcomes vary hugely among individuals. Despite a fundamental understanding of genetic (or environmental) contributions, the detailed mechanisms of how genetic variation impacts molecular or cellular behaviours of a gene, and subsequently leads to such variability remain poorly understood. METHODS Here, in addition to phenome-wide correlations, we leveraged multiomics to exploit mechanistic links, from genetic polymorphism to protein structural or functional changes and a cross-omics perturbation landscape of a germline variant. RESULTS We identified a missense cis-acting expression quantitative trait locus in CLEC18A (rs75776403) in which the altered residue (T151→M151) disrupts the lipid-binding ability of the protein domain. The altered allele carriage led to a metabolic and proliferative shift, as well as immune deactivation, therefore determines human anthropometrics (body height), kidney, and hematological traits. CONCLUSIONS Collectively, we uncovered genetic pleiotropy in human complex traits and diseases via CLEC18A rs75776403-regulated pathways.
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Affiliation(s)
- Yu-Wen Hsu
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei, Taiwan
| | - Henry Sung-Ching Wong
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Wan-Chen Huang
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan.,Institute of Medical Device and Imaging, National Taiwan University, Taipei, Taiwan
| | - Yi-Hung Yeh
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | | | - Wei-Chiao Chang
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan. .,Department of Pharmacy, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan. .,Integrative Research Center in Critical Care, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan. .,Institute of Clinical Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei, Taiwan. .,Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan. .,Graduate of Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan.
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14
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Wu NL, Huang DY, Hsieh SL, Dai YS, Lin WW. Decoy receptor 3 is involved in epidermal keratinocyte commitment to terminal differentiation via EGFR and PKC activation. Exp Mol Med 2022; 54:542-551. [PMID: 35478210 PMCID: PMC9076855 DOI: 10.1038/s12276-022-00762-8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 11/04/2021] [Accepted: 01/09/2022] [Indexed: 11/30/2022] Open
Abstract
Decoy receptor 3 (DcR3) is a soluble receptor for Fas ligand, LIGHT and TL1A, but it also exerts effector functions. Previously, we found that DcR3 is upregulated in the serum and lesional skin of patients with psoriasis and is upregulated by EGFR activation in proliferating primary human epidermal keratinocytes. However, the functional role of intracellular DcR3 in keratinocyte differentiation is still incompletely defined. Herein, primary cultured human epidermal keratinocytes were differentiated by phorbol 12-myristate 13-acetate (PMA) treatment, calcium treatment and cell confluence, which are three standard in vitro differentiation models. We found that the constitutive expression of the DcR3 gene and protein was progressively suppressed during terminal differentiation of keratinocytes. These changes were correlated with downregulation of EGFR activation during keratinocyte differentiation. EGFR inhibition by gefitinib further decreased confluence-induced suppression of DcR3 mRNA expression, and, vice versa, knocking down DcR3 expression attenuated EGFR and EGFR ligand expression as well as EGFR activation. Under conditions without a change in cell growth, DcR3 silencing reduced the expression of involucrin and transglutaminase 1 but enhanced the induction of the terminal differentiation markers keratin 10 and loricrin. Of note, DcR3 interacted with PKCα and PKCδ and enhanced PKC activity. In keratinocytes with PKCα and PKCδ silencing, differentiation markers were differentially affected. In conclusion, DcR3 expression in keratinocytes is regulated by EGFR and forms a positive feedback loop to orchestrate constitutive EGFR and PKC activity. During differentiation, DcR3 is downregulated and involved in modulating the pattern of terminal differentiation. A protein linked to cancer and various inflammatory diseases may also be an important driver for the skin condition in psoriasis. The outer surface of the skin is formed by cells called keratinocytes, which transition from a highly proliferative state to a fully mature state where they no longer divide. This developmental process is disrupted in psoriasis. Researchers led by Wan-Wan Lin at National Taiwan University, Taipei, have now identified a prominent role for a protein called decoy receptor 3 (DcR3), which is a biomarker for a variety of disorders and is also abnormally expressed in keratinocytes in psoriatic lesions. Lin and colleagues demonstrated that DcR3 interacts with multiple cellular signaling pathways that coordinate cell differentiation. These findings reveal how aberrant DcR3 activity might lead to the abnormal keratinocyte developmental behavior observed in psoriasis.
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Affiliation(s)
- Nan-Lin Wu
- Department of Dermatology, MacKay Memorial Hospital, Taipei, Taiwan, ROC.,Department of Medicine, MacKay Medical College, New Taipei City, Taiwan, ROC.,MacKay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan, ROC.,Institute of Biomedical Sciences, Mackay Medical College, New Taipei, Taiwan, ROC
| | - Duen-Yi Huang
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
| | | | - Yang-Shia Dai
- Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan, ROC
| | - Wan-Wan Lin
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC. .,Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan, ROC. .,Department of Pharmacology, National Defense Medical Center, Taipei, Taiwan, ROC.
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15
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Abstract
Dysregulated formation of neutrophil extracellular traps (NETs) is observed in acute viral infections. Moreover, NETs contribute to the pathogenesis of acute viral infections, including those caused by the dengue virus (DV) and severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Furthermore, excessive NET formation (NETosis) is associated with disease severity in patients suffering from SARS-CoV-2-induced multiple organ injuries. Dendritic cell-specific intercellular adhesion molecule-3-grabbing non-integrin (DC-SIGN) and other members of C-type lectin family (L-SIGN, LSECtin, CLEC10A) have been reported to interact with viral glycans to facilitate virus spreading and exacerbates inflammatory reactions. Moreover, spleen tyrosine kinase (Syk)-coupled C-type lectin member 5A (CLEC5A) has been shown as the pattern recognition receptor for members of flaviviruses, and is responsible for DV-induced cytokine storm and Japanese encephalomyelitis virus (JEV)-induced neuronal inflammation. Moreover, DV activates platelets via CLEC2 to release extracellular vesicles (EVs), including microvesicles (MVs) and exosomes (EXOs). The DV-activated EXOs (DV-EXOs) and MVs (DV-MVs) stimulate CLEC5A and Toll-like receptor 2 (TLR2), respectively, to enhance NET formation and inflammatory reactions. Thus, EVs from virus-activated platelets (PLT-EVs) are potent endogenous danger signals, and blockade of C-type lectins is a promising strategy to attenuate virus-induced NETosis and intravascular coagulopathy.
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Affiliation(s)
- Pei-Shan Sung
- Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115 Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115 Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
- Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
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16
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Tsai TY, Huang MT, Sung PS, Peng CY, Tao MH, Yang HI, Chang WC, Yang AS, Yu CM, Lin YP, Bau CY, Huang CJ, Pan MH, Wu CY, Hsiao CD, Yeh YH, Duan S, Paulson JC, Hsieh SL. SIGLEC-3 (CD33) serves as an immune checkpoint receptor for HBV infection. J Clin Invest 2021; 131:e141965. [PMID: 34060491 DOI: 10.1172/jci141965] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 07/06/2020] [Accepted: 04/14/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic hepatitis B (CHB) infection is rarely eradicated by current antiviral nucleos(t)ide analogues. We found that α2,6-biantennary sialoglycans of HBV surface antigen (HBsAg) bound human SIGLEC-3 (CD33) by IP and ELISA, and the binding affinity between SIGLEC-3 and α2,6-biantennary sialoglycans was determined by biolayer interferometry (equilibrium dissociation constant [KD]: 1.95 × 10-10 ± 0.21 × 10-10 M). Moreover, HBV activated SIGLEC-3 on myeloid cells and induced immunosuppression by stimulating immunoreceptor tyrosine-based inhibitory motif phosphorylation and SHP-1/-2 recruitment via α2,6-biantennary sialoglycans on HBsAg. An antagonistic anti-SIGLEC-3 mAb reversed this effect and enhanced cytokine production in response to TLR-7 agonist GS-9620 in PBMCs from CHB patients. Moreover, anti-SIGLEC-3 mAb alone was able to upregulate the expression of molecules involved in antigen presentation, such as CD80, CD86, CD40, MHC-I, MHC-II, and PD-L1 in CD14+ cells. Furthermore, SIGLEC-3 SNP rs12459419 C, which expressed a higher amount of SIGLEC-3, was associated with increased risk of hepatocellular carcinoma (HCC) in CHB patients (HR: 1.256, 95% CI: 1.027-1.535, P = 0.0266). Thus, blockade of SIGLEC-3 is a promising strategy to reactivate host immunity to HBV and lower the incidence of HCC in the CHB patient population.
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Affiliation(s)
- Tsung-Yu Tsai
- PhD Program for Translational Medicine, China Medical University and Academia Sinica, Taichung, Taiwan.,Center for Digestive Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | | | - Pei-Shan Sung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Cheng-Yuan Peng
- Center for Digestive Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan
| | - Mi-Hua Tao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Hwai-I Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Wei-Chiao Chang
- Department of Clinical Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - An-Suei Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chung-Ming Yu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Ya-Ping Lin
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Ching-Yu Bau
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chih-Jen Huang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Mei-Hung Pan
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chung-Yi Wu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | | | - Yi-Hung Yeh
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Shiteng Duan
- Department of Molecular Medicine, Scripps Research, La Jolla, California, USA
| | - James C Paulson
- Department of Molecular Medicine, Scripps Research, La Jolla, California, USA
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
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17
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Cheng L, Liu WL, Tsou YT, Li JC, Chien CH, Su MP, Liu KL, Huang YL, Wu SC, Tsai JJ, Hsieh SL, Chen CH. Transgenic Expression of Human C-Type Lectin Protein CLEC18A Reduces Dengue Virus Type 2 Infectivity in Aedes aegypti. Front Immunol 2021; 12:640367. [PMID: 33767710 PMCID: PMC7985527 DOI: 10.3389/fimmu.2021.640367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 12/11/2020] [Accepted: 02/17/2021] [Indexed: 01/15/2023] Open
Abstract
The C-type lectins, one family of lectins featuring carbohydrate binding domains which participate in a variety of bioprocesses in both humans and mosquitoes, including immune response, are known to target DENV. A human C-type lectin protein CLEC18A in particular shows extensive glycan binding abilities and correlates with type-I interferon expression, making CLEC18A a potential player in innate immune responses to DENV infection; this potential may provide additional regulatory point in improving mosquito immunity. Here, we established for the first time a transgenic Aedes aegypti line that expresses human CLEC18A. This expression enhanced the Toll immune pathway responses to DENV infection. Furthermore, viral genome and virus titers were reduced by 70% in the midgut of transgenic mosquitoes. We found significant changes in the composition of the midgut microbiome in CLEC18A expressing mosquitoes, which may result from the Toll pathway enhancement and contribute to DENV inhibition. Transgenic mosquito lines offer a compelling option for studying DENV pathogenesis, and our analyses indicate that modifying the mosquito immune system via expression of a human immune gene can significantly reduce DENV infection.
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Affiliation(s)
- Lie Cheng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan.,Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Wei-Liang Liu
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli, Taiwan
| | - Yun-Ting Tsou
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jian-Chiuan Li
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Chia-Hao Chien
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Matthew P Su
- Department of Biological Science, Nagoya University, Nagoya, Japan
| | - Kun-Lin Liu
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli, Taiwan
| | - Ya-Lang Huang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Shih-Cheng Wu
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli, Taiwan
| | - Jih-Jin Tsai
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
| | - Chun-Hong Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan.,National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli, Taiwan
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18
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Pan YG, Huang MT, Sekar P, Huang DY, Lin WW, Hsieh SL. Decoy Receptor 3 Inhibits Monosodium Urate-Induced NLRP3 Inflammasome Activation via Reduction of Reactive Oxygen Species Production and Lysosomal Rupture. Front Immunol 2021; 12:638676. [PMID: 33746978 PMCID: PMC7966727 DOI: 10.3389/fimmu.2021.638676] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 12/07/2020] [Accepted: 02/01/2021] [Indexed: 12/27/2022] Open
Abstract
Gout is a common inflammatory arthritis caused by the deposition of monosodium urate (MSU) crystals in the joints. This activates the macrophages into a proinflammatory state by inducing NLRP3-dependent interleukin-1β (IL-1β) secretion, resulting in neutrophil recruitment. Soluble decoy receptor 3 (DcR3) is an immune modulator and can exert biological functions via decoy and non-decoy actions. Previously, we showed that DcR3 suppresses lipopolysaccharides (LPS)- and virus-induced inflammatory responses in the macrophages and promotes the macrophages into the M2 phenotype. In this study, we clarified the actions of DcR3 and its non-decoy action motif heparin sulfate proteoglycan (HSPG) binding domain (HBD) in the MSU crystal-induced NLRP3 inflammasome activation in the macrophages and in mice. In bone marrow-derived macrophages, THP-1 and U937 cells, we found that the MSU crystal-induced secretion of IL-1β and activation of NLRP3 were suppressed by both DcR3.Fc and HBD.Fc. The suppression of the MSU-induced NLRP3 inflammasome activation is accompanied by the inhibition of lysosomal rupture, mitochondrial production of the reactive oxygen species (ROS), expression of cathepsins, and activity of cathepsin B, without affecting the crystal uptake and the expression of NLRP3 or pro-IL-1β. In the air pouch mice model of gout, MSU induced less amounts of IL-1β and chemokines secretion, an increased M2/M1 macrophage ratio, and a reduction of neutrophil recruitment in DcR3-transgenic mice, which expresses DcR3 in myeloid cells. Similarly, the mice intravenously treated with DcR3.Fc or HBD.Fc displayed less inflammation response. These findings indicate that HBD of DcR3 can reduce MSU crystal-induced NLRP3 inflammasome activation via modulation of mitochondrial and lysosomal functions. Therefore, we, for the first time, demonstrate a new therapeutic potential of DcR3 for the treatment of gout.
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Affiliation(s)
- Yi-Gen Pan
- Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | | | - Ponarulselvam Sekar
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Duen-Yi Huang
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Wan-Wan Lin
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan.,Department and Graduate Institute of Pharmacology, National Defense Medical Center, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Institute of Clinical Medicine & Immunology Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
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19
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Huang YL, Huang MT, Sung PS, Chou TY, Yang RB, Yang AS, Yu CM, Hsu YW, Chang WC, Hsieh SL. Endosomal TLR3 co-receptor CLEC18A enhances host immune response to viral infection. Commun Biol 2021; 4:229. [PMID: 33603190 PMCID: PMC7893028 DOI: 10.1038/s42003-021-01745-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 01/07/2021] [Indexed: 12/15/2022] Open
Abstract
Human C-type lectin member 18A (CLEC18A) is ubiquitously expressed in human, and highest expression levels are found in human myeloid cells and liver. In contrast, mouse CLEC18A (mCLEC18A) is only expressed in brain, kidney and heart. However, the biological functions of CLEC18A are still unclear. We have shown that a single amino acid change (S339 →R339) in CTLD domain has profound effect in their binding to polysaccharides and house dust mite allergens. In this study, we further demonstrate that CLEC18A and its mutant CLEC18A(S339R) associate with TLR3 in endosome and bind poly (I:C) specifically. Compared to TLR3 alone, binding affinity to poly (I:C) is further increased in TLR3-CLEC18A and TLR3-CLEC18A(S339R) complexes. Moreover, CLEC18A and CLEC18A(S339R) enhance the production of type I and type III interferons (IFNs), but not proinflammatory cytokines, in response to poly (I:C) or H5N1 influenza A virus (IAV) infection. Compared to wild type (WT) mice, ROSA-CLEC18A and ROSA-CLEC18A(S339R) mice generate higher amounts of interferons and are more resistant to H5N1 IAV infection. Thus, CLEC18A is a TLR3 co-receptor, and may contribute to the differential immune responses to poly (I:C) and IAV infection between human and mouse.
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Affiliation(s)
- Ya-Lang Huang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | | | - Pei-Shan Sung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Teh-Ying Chou
- Department of Pathology, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Ruey-Bing Yang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - An-Suei Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chung-Ming Yu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yu-Wen Hsu
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Wei-Chiao Chang
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan.
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.
- Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.
- Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan.
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20
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Ho HL, Wang FY, Lee HR, Huang YL, Lai CL, Jen WC, Hsieh SL, Chou TY. Seroprevalence of COVID-19 in Taiwan revealed by testing anti-SARS-CoV-2 serological antibodies on 14,765 hospital patients. Lancet Reg Health West Pac 2020; 3:100041. [PMID: 34173603 PMCID: PMC7546957 DOI: 10.1016/j.lanwpc.2020.100041] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/20/2020] [Accepted: 09/22/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Coronavirus Disease 2019 (COVID-19) has become a worldwide pandemic and affected more than 227 countries or territories, resulting in more than 25 million cases with over 0•85 million deaths, as of September 2, 2020. Taiwan has been successful in countering the COVID-19 outbreak, however, the potential risk for asymptomatic infections and the prevalence rates remain unknown. We aimed to estimate the seroprevalence of COVID-19 in Taiwan via serologically testing hospital patients with neither symptoms indicative of nor positive nucleic acid test for SARS-CoV-2 infection. METHODS Residual specimens from laboratory blood tests for outpatient and emergency department patients visiting a medical centre in Taipei, Taiwan, within one week in May and another in July, 2020, were collected. We used Elecsys Anti-SARS-CoV-2 Assay to screen and further validated cases with high cutoff index by a confirmatory ELISA assay. We also analysed antibody responses against SARS-CoV-2 along disease progression in four nucleic acid test confirmed COVID-19 patients. FINDINGS Blood samples from a total of 14,765 patients were tested. The unweighted seroprevalence of anti-SARS-CoV-2 antibodies was 0•07% [95% CI, 0•04%-0•13%]; after weighting with the population demographics of Taiwan, the estimated overall seroprevalence was 0•05% [95% CI, 0•02%-0•10%]. Furthermore, based on data of the four COVID-19 cases, the seroconversion dates for IgM were as early as 9 days and that for IgG 11 days after symptoms onset. INTERPRETATION We screened the anti-SARS-CoV-2 antibodies in a small-scale population-based study and observed an approximately 0•05% seroprevalence of COVID-19, indicating that the current containment protocols emphasising mask wearing, hand washing, social distancing and mandatory quarantine for all incomers are effective in Taiwan. FUNDING Taipei Veterans General Hospital, Taipei, Taiwan.
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Affiliation(s)
- Hsiang-Ling Ho
- The Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, 201, Section 2, Shipai Road, Taipei 11217, Taiwan
- The Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Fang-Yu Wang
- The Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, 201, Section 2, Shipai Road, Taipei 11217, Taiwan
| | - Hao-Ru Lee
- The Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, 201, Section 2, Shipai Road, Taipei 11217, Taiwan
| | - Ya-Lan Huang
- The Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chien-Liang Lai
- The Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, 201, Section 2, Shipai Road, Taipei 11217, Taiwan
| | - Wen-Chin Jen
- The Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, 201, Section 2, Shipai Road, Taipei 11217, Taiwan
| | - Shie-Liang Hsieh
- The Genomics Research Center, Academia Sinica, Taipei, Taiwan
- The Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Teh-Ying Chou
- The Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, 201, Section 2, Shipai Road, Taipei 11217, Taiwan
- The Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan
- The Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
- The Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan
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21
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Irham LM, Chou WH, Calkins MJ, Adikusuma W, Hsieh SL, Chang WC. Genetic variants that influence SARS-CoV-2 receptor TMPRSS2 expression among population cohorts from multiple continents. Biochem Biophys Res Commun 2020; 529:263-269. [PMID: 32703421 PMCID: PMC7831678 DOI: 10.1016/j.bbrc.2020.05.179] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [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: 05/25/2020] [Accepted: 05/25/2020] [Indexed: 02/07/2023]
Abstract
The World Health Organization recently announced that pandemic status has been achieved for coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Exponential increases in patient numbers have been reported around the world, along with proportional increases in the number of COVID-19-related deaths. The SARS-CoV-2 infection rate in a population is expected to be influenced by social practices, availability of vaccines or prophylactics, and the prevalence of susceptibility genes in the population. Previous work revealed that cellular uptake of SARS-CoV-2 requires Angiotensin Converting Enzyme 2 (ACE-2) and a cellular protease. The spike (S) protein on SARS-CoV-2 binds ACE-2, which functions as an entry receptor. Following receptor binding, transmembrane protease serine 2 (encoded by TMPRSS2) primes the S protein to allow cellular uptake. Therefore, individual expression of TMPRSS2 may be a crucial determinant of SARS-CoV-2 infection susceptibility. Here, we utilized multiple large genome databases, including the GTEx portal, SNP nexus, and Ensembl genome project, to identify gene expression profiles for TMPRSS2 and its important expression quantitative trait loci. Our results show that four variants (rs464397, rs469390, rs2070788 and rs383510) affect expression of TMPRSS2 in lung tissue. The allele frequency of each variant was then assessed in regional populations, including African, American, European, and three Asian cohorts (China, Japan and Taiwan). Interestingly, our data shows that TMPRSS2-upregulating variants are at higher frequencies in European and American populations than in the Asian populations, which implies that these populations might be relatively susceptible to SARS-CoV-2 infection.
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Affiliation(s)
- Lalu Muhammad Irham
- Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan; Faculty of Pharmacy, University of Ahmad Dahlan, Yogyakarta, 55164, Indonesia
| | - Wan-Hsuan Chou
- Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan; Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, School of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
| | - Marcus J Calkins
- Institute of Cellular and Organismic Biology, Academia Sincia, Taipei, 11529, Taiwan
| | - Wirawan Adikusuma
- Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Wei-Chiao Chang
- Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan; Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, School of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan; Integrative Research Center for Critical Care, Wan Fang Hospital, Taipei Medical University-Taipei, 11696, Taiwan; Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan.
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22
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Chang FY, Chen HC, Chen PJ, Ho MS, Hsieh SL, Lin JC, Liu FT, Sytwu HK. Immunologic aspects of characteristics, diagnosis, and treatment of coronavirus disease 2019 (COVID-19). J Biomed Sci 2020; 27:72. [PMID: 32498686 PMCID: PMC7270518 DOI: 10.1186/s12929-020-00663-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [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: 03/31/2020] [Accepted: 04/28/2020] [Indexed: 12/21/2022] Open
Abstract
On March 11, 2020, the World Health Organization declared the worldwide spread of the infectious disease COVID-19, caused by a new strain of coronavirus, SARS-CoV-2, as a pandemic. Like in all other infectious diseases, the host immune system plays a key role in our defense against SARS-CoV-2 infection. However, viruses are able to evade the immune attack and proliferate and, in susceptible individuals, cause severe inflammatory response known as cytokine storm, particularly in the lungs. The advancement in our understanding of the mechanisms underlying the host immune responses promises to facilitate the development of approaches for prevention or treatment of diseases. Components of immune system, such as antibodies, can also be used to develop sensitive and specific diagnostic methods as well as novel therapeutic agents. In this review, we summarize our knowledge about how the host mounts immune responses to infection by SARS-CoV-2. We also describe the diagnostic methods being used for COVID-19 identification and summarize the current status of various therapeutic strategies, including vaccination, being considered for treatment of the disease.
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Affiliation(s)
- Feng-Yee Chang
- Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsiang-Cheng Chen
- Division of Rheumatology, Immunology, and Allergy, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Pei-Jer Chen
- Division of Gastroenterology, Department of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Mei-Shang Ho
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Road, Section 2, Taipei, Taiwan
| | | | - Jung-Chung Lin
- Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Fu-Tong Liu
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Road, Section 2, Taipei, Taiwan.
| | - Huey-Kang Sytwu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
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23
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Abstract
CLEC5A is a spleen tyrosine kinase (Syk)-coupled C-type lectin that is highly expressed by monocytes, macrophages, neutrophils, and dendritic cells and interacts with virions directly, via terminal fucose and mannose moieties of viral glycans. CLEC5A also binds to N-acetylglucosamine (GlcNAc) and N-acetylmuramic acid (MurNAc) disaccharides of bacterial cell walls. Compared to other C-type lectins (DC-SIGN and DC-SIGNR) and TLRs, CLEC5A binds its ligands with relatively low affinities. However, CLEC5A forms a multivalent hetero-complex with DC-SIGN and other C-type lectins upon engagement with ligands, and thereby mediates microbe-induced inflammatory responses via activation of Syk. For example, in vivo studies in mouse models have demonstrated that CLEC5A is responsible for flaviviruses-induced hemorrhagic shock and neuroinflammation, and a CLEC5A polymorphism in humans is associated with disease severity following infection with dengue virus. In addition, CLEC5A is co-activated with TLR2 by Listeria and Staphylococcus. Furthermore, CLEC5A-postive myeloid cells are responsible for Concanavilin A-induced aseptic inflammatory reactions. Thus, CLEC5A is a promiscuous pattern recognition receptor in myeloid cells and is a potential therapeutic target for attenuation of both septic and aseptic inflammatory reactions.
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Affiliation(s)
- Pei-Shan Sung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Wei-Chiao Chang
- School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan. .,School of Medicine, Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.
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24
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Yeh CC, Yang MJ, Lussier EC, Tsai HW, Lo PF, Hsieh SL, Wang PH. Low plasma levels of decoy receptor 3 (DcR3) in the third trimester of pregnancy with preeclampsia. Taiwan J Obstet Gynecol 2019; 58:349-353. [PMID: 31122523 DOI: 10.1016/j.tjog.2019.03.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2018] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVE The pathophysiology of preeclampsia, a major threat during pregnancy characterized by excessive inflammatory status, remains unclear. Decoy receptor 3 (DcR3), a soluble member of the tumor necrosis factor receptor (TNFR) superfamily, is capable of inducing anti-apoptosis via binding with TL1A and anti-inflammation by driving Th2 immune reactions. DcR3 may, therefore, play a role in immune modulation during pregnancy. The purpose of this study is to explore the role of DcR3 in normal and preeclamptic pregnancies. MATERIALS AND METHODS Plasma samples from 104 normal pregnant women (26, 42, and 36 in the first, second, and third trimester, respectively) and 10 patients with preeclampsia in the third trimester were collected. Plasma DcR3 levels were determined by using commercial ELISA kits. ANOVA and linear regression analysis were performed to analyze the relationship between gestational age and DcR3 levels. After adjusting for gestational days, the levels of plasma DcR3 in preeclamptic and non-preeclamptic women in the third trimester were compared. RESULTS The plasma levels of DcR3 gradually decreased as the gestational days increased during pregnancy (p < 0.05). In the third trimester, pregnant women with preeclampsia had significantly lower plasma DcR3 levels compared to non-preeclamptic women (p < 0.05). CONCLUSIONS We found that plasma DcR3 levels gradually decreased as gestation progressed. The levels of plasma DcR3 in preeclamptic women were significantly lower than those of normal pregnant women, suggesting that a potential involvement of DcR3 in normal pregnancy and decreased levels of DcR3 may be related to preeclampsia.
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Affiliation(s)
- Chang-Ching Yeh
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ming-Jie Yang
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan
| | | | - Hsiao-Wen Tsai
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Pei-Fen Lo
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Nursing, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Peng-Hui Wang
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.
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25
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Chen MH, Huang MT, Yu WK, Lee SS, Wang JH, Cheng TJR, Bowman MR, Hsieh SL. Antibody blockade of Dectin-2 suppresses house dust mite-induced Th2 cytokine production in dendritic cell- and monocyte-depleted peripheral blood mononuclear cell co-cultures from asthma patients. J Biomed Sci 2019; 26:97. [PMID: 31861989 PMCID: PMC6925444 DOI: 10.1186/s12929-019-0598-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 12/04/2019] [Indexed: 12/11/2022] Open
Abstract
Background Dectin-2, which is a C-type lectin, interacts with the house dust mite (HDM) Dermatophagoides pteronyssinus allergen. This study aimed to investigate whether Dectin-2 blockade by antagonistic monoclonal antibodies (MoAbs) attenuates HDM-induced allergic responses. Methods Two anti-Dectin-2 MoAbs were generated and validated for specific binding to Dectin-2 Fc fusion protein (Dectin-2.Fc) and inhibition of Dectin-2.Fc/HDM interaction. Patients with asthma exhibiting high titers of anti-D. pteronyssinus IgE were enrolled. Peripheral blood mononuclear cells with depleted CD14+ monocytes were obtained from these patients and co-cultured with autologous monocyte-derived conventional dendritic cells in the presence of D. pteronyssinus or its group 2 allergens (Der p 2). Interleukin (IL)-5 and IL-13 levels in the culture supernatants were determined using ELISA in the presence or absence of anti-Dectin-2 MoAbs. Results Two MoAbs, 6A4G7 and 17A1D10, showed specific binding to recombinant Dectin-2.Fc and inhibited HDM binding to Dectin-2.Fc. Both anti-Dectin-2 MoAbs inhibited IL-5 and IL-13 production in co-cultures with Der p 2 stimulation in a dose-dependent manner. 6A4G7 and 17A1D10 (3 μg/mL) significantly inhibited Der p 2-induced (3 μg/mL) IL-5 production by 69.7 and 86.4% and IL-13 production by 84.0 and 81.4%, respectively. Moreover, this inhibitory effect of the two MoAbs remained significant in the presence of D. pteronyssinus. Conclusions Anti-Dectin-2 MoAbs significantly inhibited HDM-induced allergic responses in vitro and therefore have the potential to become therapeutic agents in mite-induced allergic diseases.
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Affiliation(s)
- Ming-Han Chen
- Division of Allergy, Immunology & Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University, Taipei, Taiwan
| | | | - Wen-Kuang Yu
- Department of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shinn-Shing Lee
- Section of Allergy, Immunology, and Rheumatology, Department of Medicine, Cheng Hsin Rehabilitation Medical Center, Taipei, Taiwan
| | - Jia-Horng Wang
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Critical Care, Far Eastern Memorial Hospital, Taipei, Taiwan
| | | | - Michael R Bowman
- Inflammation and Immunology Research Unit, Pfizer Inc, Cambridge, MA, USA.,Present address: Immunology and Inflammation Therapeutic Area, Sanofi, Cambridge, MA, USA
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan. .,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan. .,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan. .,Institute for Cancer Biology and Drug Discovery, Taipei Medical University, 128 Academia Road, Section 2, Nankang, Taipei, 115, Taiwan.
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26
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Abstract
The protective roles of endosomal toll-like receptors (TLRs) and cytosolic nucleic acid sensors are well elucidated, but the pathogenic host factors during viral infections remain unclear. Spleen tyrosine kinase (Syk)-coupled C-type lectins (CLECs) CLEC2 and CLEC5A are highly expressed on platelets and myeloid cells, respectively. CLEC2 has been shown to recognize snake venom aggretin and the endogenous ligand podoplanin and acts as a critical regulator in the development and immunothrombosis. Although CLEC2 has been reported to interact with type I immunodeficiency virus (HIV-1), its role in viral infections is still unclear. CLEC5A binds to fucose and mannose moieties of dengue virus membrane glycans, as well as to N-acetylglucosamine (GlcNAc)/N-acetylmuramic acid (MurNAc) disaccharides that form the backbone of L. monocytogenes peptidoglycans. Recently, we demonstrated that both CLEC2 and CLEC5A are critical in microbe-induced “neutrophil extracellular trap” (NET) formation and proinflammatory cytokine production. Moreover, activation of CLEC2 by dengue virus (DV) and H5N1 influenza virus (IAV) induces the release of extracellular vesicles (EVs), which further enhance NETosis and proinflammatory cytokine production via CLEC5A and Toll-like receptor 2 (TLR2). These findings not only illustrate the immunomodulatory effects of EVs during platelet-leukocyte interactions, but also demonstrate the critical roles of CLEC2 and CLEC5A in acute viral infections.
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Affiliation(s)
- Pei-Shan Sung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
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27
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Obeid S, Sung PS, Le Roy B, Chou ML, Hsieh SL, Elie-Caille C, Burnouf T, Boireau W. NanoBioAnalytical characterization of extracellular vesicles in 75-nm nanofiltered human plasma for transfusion: A tool to improve transfusion safety. Nanomedicine: Nanotechnology, Biology and Medicine 2019; 20:101977. [DOI: 10.1016/j.nano.2019.02.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 02/14/2019] [Accepted: 02/28/2019] [Indexed: 01/08/2023]
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Chang WC, Yeh YC, Ho HL, Hsieh SL, Chou TY. Decoy Receptor 3 Expression Is Associated With Wild-Type EGFR Status, Poor Differentiation of Tumor, and Unfavorable Patient Outcome. Am J Clin Pathol 2019; 152:207-216. [PMID: 31077284 DOI: 10.1093/ajcp/aqz035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 12/30/2022] Open
Abstract
OBJECTIVES The role of decoy receptor 3 (DcR3) in lung cancer, particularly adenocarcinoma, has not been well studied. In this study, we aim to investigate the expression profile and the clinicopathologic implications of DcR3 expression in lung adenocarcinoma. METHODS Immunohistochemistry was used to examine DcR3 expression in 461 lung adenocarcinomas. The differences in DcR3 expression among the various histopathologic patterns were analyzed. The relationship between DcR3 expression and clinicopathologic parameters, including epidermal growth factor receptor (EGFR) mutation, was also investigated. RESULTS DcR3 expression was more frequently expressed in solid, micropapillary, and acinar patterns (P < .0001) and in tumors with wild-type EGFR status (P = .018). In addition, DcR3 expression portends a less favorable disease-free survival in stage I patients (P = .012). CONCLUSIONS The expression of DcR3 might be involved in the differentiation and progression of lung adenocarcinoma. Therefore, DcR3 may be applied clinically for prediction of tumor progression in stage I lung adenocarcinoma.
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Affiliation(s)
- Wei-Chin Chang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Pathology, MacKay Memorial Hospital and MacKay Medical College, Taipei, Taiwan
- MacKay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
| | - Yi-Chen Yeh
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hsiang-Ling Ho
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Teh-Ying Chou
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
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Sung PS, Huang TF, Hsieh SL. Extracellular vesicles from CLEC2-activated platelets enhance dengue virus-induced lethality via CLEC5A/TLR2. Nat Commun 2019; 10:2402. [PMID: 31160588 PMCID: PMC6546763 DOI: 10.1038/s41467-019-10360-4] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 05/08/2019] [Indexed: 01/08/2023] Open
Abstract
Platelet-leukocyte interactions amplify inflammatory reactions, but the underlying mechanism is still unclear. CLEC5A and CLEC2 are spleen tyrosine kinase (Syk)-coupled C-type lectin receptors, abundantly expressed by leukocytes and platelets, respectively. Whereas CLEC5A is a pattern recognition receptor (PRR) to flaviviruses and bacteria, CLEC2 is the receptor for platelet-activating snake venom aggretin. Here we show that dengue virus (DV) activates platelets via CLEC2 to release extracellular vesicles (EVs), including exosomes (EXOs) and microvesicles (MVs). DV-induced EXOs (DV-EXOs) and MVs (DV-MVs) further activate CLEC5A and TLR2 on neutrophils and macrophages, thereby induce neutrophil extracellular trap (NET) formation and proinflammatory cytokine release. Compared to stat1-/- mice, simultaneous blockade of CLEC5A and TLR2 effectively attenuates DV-induced inflammatory response and increases survival rate from 30 to 90%. The identification of critical roles of CLEC2 and CLEC5A/TLR2 in platelet-leukocyte interactions will support the development of novel strategies to treat acute viral infection in the future.
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Affiliation(s)
- Pei-Shan Sung
- Institute of Clinical Medicine, National Yang-Ming University, 11221, Taipei, Taiwan
| | - Tur-Fu Huang
- Department of Medicine, Mackay Medical College, 25245, New Taipei City, Taiwan.,Department of Pharmacology, College of Medicine, National Taiwan University, 10051, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Clinical Medicine, National Yang-Ming University, 11221, Taipei, Taiwan. .,Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan. .,Department of Medical Research, Taipei Veterans General Hospital, 11217, Taipei, Taiwan.
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Sekar P, Huang DY, Hsieh SL, Chang SF, Lin WW. AMPK-dependent and independent actions of P2X7 in regulation of mitochondrial and lysosomal functions in microglia. Cell Commun Signal 2018; 16:83. [PMID: 30458799 PMCID: PMC6245559 DOI: 10.1186/s12964-018-0293-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/01/2018] [Indexed: 12/24/2022] Open
Abstract
Background P2X7 is ubiquitously expressed in myeloid cells and regulates the pathophysiology of inflammatory diseases. Since mitochondrial function in microglia is highly associated with microglial functions in controlling neuronal plasticity and brain homeostasis, we interested to explore the roles of P2X7 in mitochondrial and lysosomal functions as well as mitophagy in microglia. Methods P2X7−/− bone marrow-derived macrophages (BMDM), primary microglia and BV-2 immortalized microglial cells were used to detect the particular protein expression by immunoblotting. Mitochondrial reactive oxygen species (mitoROS), intracellular calcium, mitochondrial mass and lysosomal integrity were examined by flow cytometry. Mitochondrial oxygen consumption rate (OCR) was recorded using Seahorse XF flux analyzer. Confocal microscopic images were performed to indicate the mitochondrial dynamics and mitophagy after P2X7 activation. Results In primary microglia, BV-2 microglial cells and BMDM, P2X7 agonist BzATP triggered AMPK activation and LC3II accumulation through reactive oxygen species (ROS) and CaMKKII pathways, and these effects were abolished by P2X7 antagonist A438079 and P2X7 deficiency. Moreover, we detected the dramatic decreases of mitochondrial OCR and mass following P2X7 activation. AMPK inhibition by compound C or AMPK silencing reversed the P2X7 actions in reduction of mitochondrial mass, induction of mitochondrial fission and mitophagy, but not in uncoupling of mitochondrial respiration. Interestingly, we found that P2X7 activation induced nuclear translocation of TFEB via an AMPK-dependent pathway and led to lysosomal biogenesis. Mimicking the actions of BzATP, nigericin also induced ROS-dependent AMPK activation, mitophagy, mitochondrial fission and respiratory inhibition. Longer exposure of BzATP induced cell death, and this effect was accompanied by the lysosomal instability and was inhibited by autophagy and cathepsin B inhibitors. Conclusion Altogether ROS- and CaMKK-dependent AMPK activation is involved in P2X7-mediated mitophagy, mitochondrial dynamics and lysosomal biogenesis in microglial cells, which is followed by cytotoxicity partially resulting from mitophagy and cathepsin B activation. Electronic supplementary material The online version of this article (10.1186/s12964-018-0293-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ponarulselvam Sekar
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Duen-Yi Huang
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | | | - Shwu-Fen Chang
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Wan-Wan Lin
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan. .,Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan.
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31
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Sameh O, de Boiseaumarie BLR, Elie-Caille C, Boireau W, Chou ML, Burnouf T, Sung PS, Hsieh SL. Nanofiltration of extracellular vesicles from human plasma & their on-chip qualification and quantification with a NanoBioAnalytical platform. Meta Gene 2018. [DOI: 10.1016/j.mgene.2018.05.022] [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: 11/25/2022] Open
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Liao TL, Hsieh SL, Chen YM, Chen HH, Liu HJ, Lee HC, Chen DY. Rituximab May Cause Increased Hepatitis C Virus Viremia in Rheumatoid Arthritis Patients Through Declining Exosomal MicroRNA-155. Arthritis Rheumatol 2018; 70:1209-1219. [PMID: 29575671 DOI: 10.1002/art.40495] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 03/08/2018] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Several studies have shown that rituximab may enhance hepatitis C virus (HCV) activity. MicroRNAs (miRNAs) have been implicated in modulating the host immune response in HCV infection; miRNAs can be packaged into the exosomes and then shuttled by the exosomes to aid biologic functions. However, the role of exosomal miRNAs (exo-miRNAs) in rituximab-related HCV activity enhancement remains unclear. METHODS The association between rituximab and increased HCV activity was examined using an in vitro cell-based assay. Purified exosomes were confirmed using immunoblotting and flow cytometry and quantified using enzyme-linked immunosorbent assay. Exosomal miRNA-155 (exo-miR-155) levels were measured using quantitative reverse transcription-polymerase chain reaction. RESULTS In vitro data showed that B cell-derived miR-155 could inhibit HCV replication in hepatocytes through exosome transmission. Rituximab could both induce B cell depletion and affect intracellular miR-155 production as well as exo-miR-155 transmission and then enhance HCV activity in hepatocytes (P < 0.005). Serum exosome levels were increased in rheumatoid arthritis (RA) patients with HCV infection compared with the levels in RA patients without HCV infection (P < 0.01). The exo-miR-155 levels were significantly increased in RA patients with HCV infection compared with those without infection (P < 0.01). A significantly greater decrement of exo-miR-155 expression was observed after rituximab therapy compared with those observed before therapy (P < 0.01), and hepatitis C viral loads increased simultaneously (P < 0.05). CONCLUSION Circulating exo-miR-155 levels were negatively correlated with hepatitis C viral loads and subsequently associated with rituximab-related HCV activity enhancement in RA patients. Exo-miR-155 may become a potential diagnostic biomarker or therapeutic target.
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Affiliation(s)
- Tsai-Ling Liao
- Taichung Veterans General Hospital and National Chung Hsing University, Taichung, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica and National Yang Ming University, Taipei, Taiwan
| | - Yi-Ming Chen
- Taichung Veterans General Hospital and National Chung Hsing University, Taichung, Taiwan, and National Yang Ming University, Taipei, Taiwan
| | - Hsin-Hua Chen
- Taichung Veterans General Hospital and National Chung Hsing University, Taichung, Taiwan, and National Yang Ming University, Taipei, Taiwan
| | - Hung-Jen Liu
- National Chung Hsing University, Taichung, Taiwan
| | - Hsiu-Chin Lee
- Taichung Veterans General Hospital, Taichung, Taiwan
| | - Der-Yuan Chen
- Taichung Veterans General Hospital, China Medical University Hospital, and China Medical University, Taichung, Taiwan
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33
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Wen KC, Sung PL, Hsieh SL, Chou YT, Lee OKS, Wu CW, Wang PH. α2,3-sialyltransferase type I regulates migration and peritoneal dissemination of ovarian cancer cells. Oncotarget 2018; 8:29013-29027. [PMID: 28423672 PMCID: PMC5438708 DOI: 10.18632/oncotarget.15994] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [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: 11/10/2016] [Accepted: 02/10/2017] [Indexed: 12/19/2022] Open
Abstract
Epithelial ovarian cancer (EOC) has the highest mortality rate among gynecologic cancers due to advanced stage presentation, peritoneal dissemination, and refractory ascites at diagnosis. We investigated the role of α2,3-sialyltransferase type I (ST3GalI) by analyzing human ovarian cancer datasets and human EOC tissue arrays. We found that high expression of ST3GalI was associated with advanced stage EOC. Transwell migration and cell invasion assays showed that high ST3GalI expression enhanced migration of EOC cells. We also observed that there was a linear relation between ST3GalI expression and epidermal growth factor receptor (EGFR) signaling in EOC patients, and that high ST3GalI expression blocked the effect of EGFR inhibitors. Co-Immunoprecipitation experiments demonstrated that ST3GalI and EGFR were present in the same protein complex. Inhibition of ST3GalI using a competitive inhibitor, Soyasaponin I (SsaI), inhibited tumor cell migration and dissemination in the in vivo mouse model with transplanted MOSEC cells. Further, SsaI synergistically enhanced the anti-tumor effects of EGFR inhibitor on EOC cells. Our study demonstrates that ST3GalI regulates ovarian cancer cell migration and peritoneal dissemination via EGFR signaling. This suggests α2,3-linked sialylation inhibitors in combination with EGFR inhibitors could be effective agents for the treatment of EOC.
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Affiliation(s)
- Kuo-Chang Wen
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,Department of Obstetrics and Gynecology, National Yang-Ming University, Taipei, Taiwan
| | - Pi-Lin Sung
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,Department of Obstetrics and Gynecology, National Yang-Ming University, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yu-Ting Chou
- Institute of Biotechnology and Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Oscar Kuang-Sheng Lee
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,Stem Cell Research Center, National Yang-Ming University, Taipei, Taiwan.,Taipei City Hospital, Taipei, Taiwan.,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Cheng-Wen Wu
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,Institute of Biomedical Science, Academia Sinica, Taipei, Taiwan
| | - Peng-Hui Wang
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,Department of Obstetrics and Gynecology, National Yang-Ming University, Taipei, Taiwan.,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
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Tsai HW, Huang MT, Wang PH, Huang BS, Chen YJ, Hsieh SL. Decoy receptor 3 promotes cell adhesion and enhances endometriosis development. J Pathol 2017; 244:189-202. [PMID: 29057478 DOI: 10.1002/path.5000] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 04/30/2017] [Revised: 09/07/2017] [Accepted: 10/17/2017] [Indexed: 02/06/2023]
Abstract
Endometriosis is a multifactorial inflammatory disease with persistent activation of the nuclear factor-κB (NF-κB) signalling pathway. Aberrant adhesion of endometrium is the essential step in the progression of endometriosis, but the molecular mechanism of ectopic growth of endometrium is still unclear. Decoy receptor 3 (DcR3)/TNFRSF6B, a pleiotropic immunomodulator regulated by oestrogen, is able to activate focal adhesion kinase to promote cell adhesion. We found that DcR3 is upregulated in human ectopic endometrial cells via activation of the Akt-NF-κB signalling pathway, and its expression level correlates positively with that of the adhesion molecules intercellular adhesion molecule 1 (ICAM-1) and homing cell adhesion molecule (HCAM; CD44). In a multivariate regression model, DcR3 expression level was the most significant parameter associated with endometriosis severity. Knockdown of DcR3 not only downregulated the expression of ICAM-1 and HCAM, but also reduced cell adhesion and migration. In vivo investigation further showed that DcR3 promoted the growth and spread of endometrium, whereas knockdown of DcR3 by lentivirus-delivered short hairpin RNA inhibited ectopic adhesion of endometrium and abrogated endometriosis progression. These observations are in support of DcR3 playing a critical role in the pathogenesis of endometriosis, and the inhibition of DcR3 expression being a promising approach for the treatment of endometriosis. Copyright © 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Hsiao-Wen Tsai
- Department of Obstetrics and Gynaecology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | | | - Peng-Hui Wang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Obstetrics and Gyneacology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ben-Shian Huang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Obstetrics and Gyneacology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Jen Chen
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Obstetrics and Gyneacology, Taipei Veterans General Hospital, Taipei, Taiwan.,Cheng-Hsin General Hospital, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Genomics Research Centre, Academia Sinica, Taipei, Taiwan.,Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
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Lee PC, Yang LY, Wang YW, Huang SF, Lee KC, Hsieh YC, Yang YY, Hsieh SL, Hou MC, Lin HC, Lee FY, Lee SD. Mechanisms of the prevention and inhibition of the progression and development of non-alcoholic steatohepatitis by genetic and pharmacological decoy receptor 3 supplementation. Hepatol Res 2017; 47:1260-1271. [PMID: 28066964 DOI: 10.1111/hepr.12863] [Citation(s) in RCA: 7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 12/15/2016] [Accepted: 01/06/2017] [Indexed: 12/12/2022]
Abstract
AIMS Treatment of non-alcoholic steatohepatitis (NASH) is difficult due to the absence of a proven treatment and its comprehensive mechanisms. In the NASH animal model, upregulated hepatic inflammation and oxidative stress, with the resultant M1 polarization of macrophages as well as imbalanced adipocytokines, all accelerate NASH progression. As a member of the tumor necrosis factor receptor superfamily, decoy receptor 3 (DcR3) not only neutralizes the death ligands, but also performs immune modulations. In this study, we aimed to investigate the possible non-decoy effects of DcR3 on diet-induced NASH mice. METHODS Methionine- and choline-deficient (MCD) diet feeding for 9 weeks was applied to induce NASH in BALB/c mice. Decoy receptor 3 heterozygous transgenesis or pharmacological pretreatment with DcR3a for 1 month were designed as interventions. Intrahepatic inflammatory status as well as macrophage polarization, oxidative stress, and steatosis as well as lipogenic gene expression and fibrotic status were analyzed. Additionally, acute effects of DcR3a on HepG2 cells, Hep3B cells, and primary mouse hepatocytes in various MCD medium-stimulated changes were also evaluated. RESULTS Both DcR3 genetic and pharmacologic supplement significantly reduced MCD diet-induced hepatic M1 polarization. In addition, DcR3 supplement attenuated MCD diet-increased hepatic inflammation, oxidative stress, adipocytokine imbalance, steatosis, and fibrogenesis. Moreover, acute DcR3a incubation in HepG2 cells, Hep3B cells, and mouse hepatocytes could normalize the expression of genes related to lipid oxidation along with inflammation and oxidative stress. CONCLUSION The ability of DcR3 to attenuate hepatic steatosis and inflammation through its non-decoy effects of immune modulation and oxidative stress attenuation makes it a potential treatment for NASH.
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Affiliation(s)
- Pei-Chang Lee
- Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Department of Medicine, Yuanshan Branch, Taipei Veterans General Hospital, Yilan, Taiwan
| | - Ling-Yu Yang
- Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ying-Wen Wang
- Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shiang-Fen Huang
- Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Infection, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Kuei-Chuan Lee
- Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yun-Cheng Hsieh
- Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ying-Ying Yang
- Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan.,Division of General Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Ming-Chih Hou
- Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Han-Chieh Lin
- Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Fa-Yuah Lee
- Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
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Cheng AC, Yang KY, Chen NJ, Hsu TL, Jou R, Hsieh SL, Tseng PH. CLEC9A modulates macrophage-mediated neutrophil recruitment in response to heat-killed Mycobacterium tuberculosis H37Ra. PLoS One 2017; 12:e0186780. [PMID: 29065139 PMCID: PMC5655532 DOI: 10.1371/journal.pone.0186780] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 10/06/2017] [Indexed: 12/15/2022] Open
Abstract
Tuberculosis is a fatal human infectious disease caused by Mycobacterium tuberculosis (M. tuberculosis) that is prevalent worldwide. Mycobacteria differ from other bacteria in that they have a cell wall composed of specific surface glycans that are the major determinant of these organisms' pathogenicity. The interaction of M. tuberculosis with pattern recognition receptors (PRRs), in particular C-type lectin receptors (CLRs), on the surface of macrophages plays a central role in initiating innate and adaptive immunity, but the picture as a whole remains a puzzle. Defining novel mechanisms by which host receptors interact with pathogens in order to modulate a specific immune response is an area of intense research. In this study, based on an in vitro lectin binding assay, CLEC9A (DNGR-1) is identified as a novel CLR that binds with mycobacteria. Our results with CLEC9A-knocked down cells and a CLEC9A-Fc fusion protein as blocking agents show that CLEC9A is involved in the activation of SYK and MAPK signaling in response to heat-killed M. tuberculosis H37Ra treatment, and it then promotes the production of CXCL8 and IL-1β in macrophages. The CXCL8 and IL-1β secreted by the activated macrophages are critical to neutrophil recruitment and activation. In a in vivo mouse model, when the interaction between CLEC9A and H37Ra is interfered with by treatment with CLEC9A-Fc fusion protein, this reduces lung inflammation and cell infiltration. These findings demonstrate that CLEC9A is a specialized receptor that modulates the innate immune response when there is a mycobacterial infection.
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Affiliation(s)
- An-Chieh Cheng
- Institute of Biochemistry and Molecular Biology, School of Life Science, National Yang-Ming University, Taipei, Taiwan
| | - Kuang-Yao Yang
- Institute of Emergency and Critical Care Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Infection and Immunity Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Nien-Jung Chen
- Infection and Immunity Research Center, National Yang-Ming University, Taipei, Taiwan
- Institute of Microbiology and Immunology, School of Life Science, National Yang-Ming University, Taipei, Taiwan
| | - Tsui-Ling Hsu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Ruwen Jou
- Institute of Microbiology and Immunology, School of Life Science, National Yang-Ming University, Taipei, Taiwan
- Taiwan Centers for Disease Control, Taipei, Taiwan
| | | | - Ping-Hui Tseng
- Institute of Biochemistry and Molecular Biology, School of Life Science, National Yang-Ming University, Taipei, Taiwan
- Infection and Immunity Research Center, National Yang-Ming University, Taipei, Taiwan
- * E-mail:
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Li TH, Liu CW, Lee PC, Huang CC, Lee KC, Hsieh YC, Yang YY, Hsieh SL, Lin HC, Tsai CY. Decoy receptor 3 analogous supplement protects steatotic rat liver from ischemia-reperfusion injury. J Chin Med Assoc 2017; 80:391-400. [PMID: 28325574 DOI: 10.1016/j.jcma.2016.11.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 08/04/2016] [Revised: 10/28/2016] [Accepted: 11/04/2016] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND For steatotic livers, pharmacological approaches to minimize the hepatic neutrophil and macrophage infiltration, and cytokine and chemokine release in ischemia-reperfusion (IR) injury are still limited. Tumor necrosis factor (TNF)-α superfamily-stimulated pathogenic cascades and M1 macrophage/Kupffer cells (KC) polarization from Th1 cytokines are important in the pathogenesis of IR liver injury with hepatic steatosis (HS). Conversely, anti-inflammatory M2 macrophages produce Th2 cytokine (interleukin-4), which reciprocally enhances M2 polarization. Toll-like receptor 4-activated KCs can release proinflammatory mediators, skew M1 polarization and escalate liver IR injury. Decoy receptor 3 (DcR3) could be potential agents simultaneously blocking the IR liver injury-related pathogenic changes and extend the survival of steatotic graft. METHODS Rats were fed with methionine and choline-deficient high-fat diet (MCD HFD) for 6 weeks to induce HS. Preliminary experiments with HS group and IR group were conducted, and either immunoglobulin G Fc protein or DcR3 analogue was treated for 14 days in all groups to evaluate the severity. In the Zucker rat-focused experiments, various serum and hepatic substances, M1 polarization, and hepatic microcirculation were assessed. RESULTS We found that serum/hepatic DcR3 levels were lower in nonalcoholic fatty liver disease patients with HS. DcR3a protected Zucker rats with HS from IR liver injury. The beneficial effects of DcR3a supplement were mediated by inhibiting hepatic M1 polarization of KCs, decreasing serum/hepatic TNFα, nitric oxide, nitrotyrosine, soluble TNF-like cytokine 1A, Fas ligand, and interferon-γ levels, neutrophil infiltration, and improving hepatic microcirculatory failure among rats with IR-injured steatotic livers. Additionally, downregulated hepatic TNF-like cytokine 1A/Fas-ligand and toll-like receptor 4/nuclear factor-κB signals were found to mediate the DcR3a-related protective effects of steatotic livers from IR injury. CONCLUSION Using multimodal in vivo and in vitro approaches, we found that DcR3a analogue was a potential agent to protect steatotic liver against IR injury by simultaneous blockade of the multiple IR injury-related pathogenic changes.
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Affiliation(s)
- Tzu-Hao Li
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, Chiayi Branch, Taichung Veteran General Hospital, Chiayi, Taiwan, ROC; Institute of Clinical Medicine, Department of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chih-Wei Liu
- Division of Allergy, Immunology and Rheumatology, Taipei Veteran General Hospital, Taipei, Taiwan, ROC
| | - Pei-Chang Lee
- Division of Gastroenterology and Hepatology, Taipei Veteran General Hospital, Taipei, Taiwan, ROC; Department of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chia-Chang Huang
- Division of Clinical Skills Training, Taipei Veteran General Hospital, Taipei, Taiwan, ROC; Division of General Medicine, Department of Medicine, Taipei Veteran General Hospital, Taipei, Taiwan, ROC
| | - Kuei-Chuan Lee
- Division of Gastroenterology and Hepatology, Taipei Veteran General Hospital, Taipei, Taiwan, ROC; Department of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yun-Cheng Hsieh
- Division of Gastroenterology and Hepatology, Taipei Veteran General Hospital, Taipei, Taiwan, ROC; Department of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Ying-Ying Yang
- Institute of Clinical Medicine, Department of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC; Division of Allergy, Immunology and Rheumatology, Taipei Veteran General Hospital, Taipei, Taiwan, ROC; Division of Gastroenterology and Hepatology, Taipei Veteran General Hospital, Taipei, Taiwan, ROC; Department of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC; Division of General Medicine, Department of Medicine, Taipei Veteran General Hospital, Taipei, Taiwan, ROC.
| | - Shie-Liang Hsieh
- Institute of Clinical Medicine, Department of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC; Genomics Research Center, Academia Sinica, Taipei, Taiwan, ROC
| | - Han-Chieh Lin
- Division of Gastroenterology and Hepatology, Taipei Veteran General Hospital, Taipei, Taiwan, ROC; Department of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chang-Youh Tsai
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, Chiayi Branch, Taichung Veteran General Hospital, Chiayi, Taiwan, ROC; Department of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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Abstract
Spinal cord injury (SCI) can lead to severe disability, paralysis, neurological deficits and even death. In humans, most spinal cord injuries are caused by transient compression or contusion of the spinal cord associated with motor vehicle accidents. Animal models of contusion mimic the typical SCI's found in humans and these models are key to the discovery of progressive secondary tissue damage, demyelination, and apoptosis as well as pathophysiological mechanisms post SCI. Here we describe a method for the establishment of an efficient and reproducible contusion model of SCI in adult rat.
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Affiliation(s)
- Chuan-Wen Chiu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Henrich Cheng
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,Center for Neural Regeneration, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
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Abstract
Decoy receptor 3 (DcR3), also known as tumor necrosis factor receptor (TNFR) superfamily member 6b (TNFRSF6B), is a soluble decoy receptor which can neutralize the biological functions of three members of tumor necrosis factor superfamily (TNFSF): Fas ligand (FasL), LIGHT, and TL1A. In addition to ‘decoy’ function, recombinant DcR3.Fc is able to modulate the activation and differentiation of dendritic cells (DCs) and macrophages via ‘non-decoy’ action. DcR3-treated DCs skew T cell differentiation into Th2 phenotype, while DcR3-treated macrophages behave M2 phenotype. DcR3 is upregulated in various cancer cells and several inflammatory tissues, and is regarded as a potential biomarker to predict inflammatory disease progression and cancer metastasis. However, whether DcR3 is a pathogenic factor or a suppressor to attenuate inflammatory reactions, has not been discussed comprehensively yet. Because mouse genome does not have DcR3, it is not feasible to investigate its physiological functions by gene-knockout approach. However, DcR3-mediated effects in vitro are determined via overexpressing DcR3 or addition of recombinant DcR3.Fc fusion protein. Moreover, CD68-driven DcR3 transgenic mice are used to investigate DcR3-mediated systemic effects in vivo. Upregulation of DcR3 during inflammatory reactions exerts negative-feedback to suppress inflammation, while tumor cells hijack DcR3 to prevent apoptosis and promote tumor growth and invasion. Thus, ‘switch-on’ of DcR3 expression may be feasible for the treatment of inflammatory diseases and enhance tissue repairing, while ‘switch-off’ of DcR3 expression can enhance tumor apoptosis and suppress tumor growth in vivo.
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Affiliation(s)
- Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei, 115, Taiwan. .,Institute of Clinical Medicine & Immunology Research Center, National Yang-Ming University, Taipei, Taiwan. .,Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan. .,Institute of Immunology, College of Medicine, National Taiwan University Taipei, Taipei, Taiwan. .,Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan.
| | - Wan-Wan Lin
- Department of Pharmacology, College of Medicine, National Taiwan University, No. 1 Section 1, Jen Ai Road, Taipei, 10001, Taiwan.
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Liu YL, Chen WT, Lin YY, Lu PH, Hsieh SL, Cheng IHJ. Amelioration of amyloid-β-induced deficits by DcR3 in an Alzheimer's disease model. Mol Neurodegener 2017; 12:30. [PMID: 28438208 PMCID: PMC5402663 DOI: 10.1186/s13024-017-0173-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 10/15/2016] [Accepted: 04/07/2017] [Indexed: 12/03/2022] Open
Abstract
Background Microglia mediate amyloid-beta peptide (Aβ)-induced neuroinflammation, which is one of the key events in the pathogenesis of Alzheimer’s disease (AD). Decoy receptor 3 (DcR3)/TNFRSF6B is a pleiotropic immunomodulator that promotes macrophage differentiation toward the M2 anti-inflammatory phenotype. Based on its role as an immunosupressor, we examined whether DcR3 could alleviate neuroinflammation and AD-like deficits in the central nervous system. Method We crossed human APP transgenic mice (line J20) with human DcR3 transgenic mice to generate wild-type, APP, DcR3, and APP/DcR3 mice for pathological analysis. The Morris water maze, fear conditioning test, open-field, and elevated-plus maze were used to access their cognitive behavioral changes. Furthermore, the pathological and immune profiles were examined by immunostaining, ELISA, Q-PCR, and IP. In vitro assays were designed to examine DcR3-mediated innate cytokine profile alteration and the potential protective mechanism. Results We reported that DcR3 ameliorates hippocampus-dependent memory deficits and reduces amyloid plaque deposition in APP transgenic mouse. The protective mechanism of DcR3 mediates through interacting with heparan sulfate proteoglycans and activating IL-4+YM1+ M2a-like microglia that reduces Aβ-induced proinflammatory cytokines and promotes phagocytosis ability of microglia. Conclusion The neuroprotective effect of DcR3 is mediated via modulating microglia activation into anti-inflammatory M2a phenotype, and upregulating DcR3 expression in the brain may be a potential therapeutic approach for AD. Electronic supplementary material The online version of this article (doi:10.1186/s13024-017-0173-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yi-Ling Liu
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Wei-Ting Chen
- Brain Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Yi Lin
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Po-Hung Lu
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan. .,Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan. .,Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan. .,Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Irene Han-Juo Cheng
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan. .,Brain Research Center, National Yang-Ming University, Taipei, Taiwan. .,Infection and Immunity Research Center, National Yang-Ming University, Taipei, Taiwan.
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Abstract
Dengue virus (DENV) infection has a considerable health impact in tropical and subtropical countries worldwide. Escalation of infection rates greatly increases morbidity and mortality, most commonly from deaths due to dengue hemorrhagic fever and dengue shock syndrome. Although the development of an effective, long-lasting vaccine has been a major aim for control and prevention of DENV infection, the currently licensed vaccine has limitations and is less than satisfactory. Thus, there remains an important need to identify effective and tolerable medications for treatment of DENV-infected patients both in the early phase, to prevent progression to fatal outcomes, and to minimize deaths after patients develop severe complications. This review will address several specific points, including (1) approaches to identify anti-DENV medications, (2) recent advances in the development of potential compounds targeting DENV infection, (3) experience with clinical trials of regimens for DENV infection, (4) some available medications of potential for clinical trials against DENV infection, (5) reasons for unsuccessful outcomes and challenges of anti-DENV treatments, and (6) directions for developing or selecting better anti-DENV strategies. This review provides useful guidance for clinicians selecting drugs for DENV-infected patients with severe manifestations or potential fatal disease progression, and for basic researchers seeking to develop effective anti-DENV regimens.
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Affiliation(s)
- Jenn-Haung Lai
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Tao-Yuan, Taiwan, ROC; Graduate Institute of Medical Science, National Defense Medical Center, Taipei, Taiwan, ROC.
| | - Yi-Ling Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan, ROC
| | - Shie-Liang Hsieh
- Institute of Microbiology and Immunology, National Yang-Ming University, Taiwan, ROC; Institute of Clinical Medicine, National Yang-Ming University, Taiwan, ROC; Genomics Research Center, Academia Sinica, Taipei, Taiwan, ROC; Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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Li TH, Lee PC, Lee KC, Hsieh YC, Tsai CY, Yang YY, Huang SF, Tsai TH, Hsieh SL, Hou MC, Lin HC, Lee SD. Down-regulation of common NFκB-iNOS pathway by chronic Thalidomide treatment improves Hepatopulmonary Syndrome and Muscle Wasting in rats with Biliary Cirrhosis. Sci Rep 2016; 6:39405. [PMID: 28009008 PMCID: PMC5180197 DOI: 10.1038/srep39405] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 07/19/2016] [Accepted: 11/23/2016] [Indexed: 12/22/2022] Open
Abstract
Thalidomide can modulate the TNFα-NFκB and iNOS pathway, which involve in the pathogenesis of hepatopulmonary syndrome (HPS) and muscle wasting in cirrhosis. In bile duct ligated-cirrhotic rats, the increased circulating CD16+ (inflammatory) monocytes and its intracellular TNFα, NFκB, monocyte chemotactic protein (MCP-1) and iNOS levels were associated with increased circulating MCP-1/soluable intercellular cell adehesion molecule-1 (sICAM-1), pulmonary TNFα/NOx, up-regulated M1 polarization, exacerbated angiogenesis and hypoxemia (increased AaPO2) in bronchoalveolar lavage (BAL) fluid and pulmonary homogenates. Meanwhile, a significant correlation was noted between circulating CD16+ monocyte/M1 (%) macrophages in BAL; M1 (%) macrophages in BAL/pulmonary iNOS mRNA expression; pulmonary iNOS mRNA expression/relative pulmonary MVD; pulmonary NOx level/AaPO2; circulating CD16+ monocyte/M1 (%) macrophages in muscle homogenates; 3-nitrotyrosine (representative of peroxynitrite) concentration/M1 (%) macrophages in muscle homogenates. The in vitro data demonstrated an iNOS-dependent inhibition of thalidomide on the TNFα-stimulated angiogenesis and myogenesis in human pulmonary artery endothelial cells (HPAECs) and C2C12 myoblasts. Significantly, the co-culture of CD16+ monocyte from different rats with HPAECs, or co-culture of supernatant of above mixed cultures with HPAECs or C2C12 myoblasts stimulated angiogenesis, migration and myogenesis. Our findings demonstrate that TNFα inhibitor thalidomide markedly diminishes the severity of experimental HPS and muscle wasting by down-regulation of common peripheral and local NFκB-iNOS pathway.
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Affiliation(s)
- Tzu-Hao Li
- Division of Allergy and Immunology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Division of Allergy, Immunology, and Rheumatology, Department of Medicine, Chiayi Branch, Taichung Veterans General Hospital, No. 600, Sec. 2, Shixian Rd., West District, Chiayi City, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, No. 155, Sec. 2, Linong St., Taipei, Taiwan
| | - Pei-Chang Lee
- Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Division of Gastroenterology &Hepatology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan
| | - Kuei-Chuan Lee
- Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Division of Gastroenterology &Hepatology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan
| | - Yun-Cheng Hsieh
- Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Division of Gastroenterology &Hepatology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan
| | - Chang-Youh Tsai
- Division of Allergy and Immunology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan
| | - Ying-Ying Yang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, No. 155, Sec. 2, Linong St., Taipei, Taiwan.,Division of Gastroenterology &Hepatology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan.,Division of General Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan
| | - Shiang-Fen Huang
- Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan.,Division of Infection Diseases, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan
| | - Tung-Hu Tsai
- Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan.,Institute of Traditional Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, No. 155, Sec. 2, Linong St., Taipei, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan.,Genomics Research Center, Academia Sinica, 128 Sec. 2, Academia Rd., Nankang, Taipei City, Taiwan
| | - Ming-Chih Hou
- Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Division of Gastroenterology &Hepatology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan
| | - Han-Chieh Lin
- Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Division of Gastroenterology &Hepatology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan
| | - Shou-Dong Lee
- Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, Taiwan.,Department of Medicine, National Yang-Ming University, No. 155, Sec.2, Linong St., Taipei, Taiwan.,Cheng Hsin General Hospital, No. 45, Cheng Hsin St., Beitou District, Taipei
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Chiu CW, Huang WH, Lin SJ, Tsai MJ, Ma H, Hsieh SL, Cheng H. The immunomodulator decoy receptor 3 improves locomotor functional recovery after spinal cord injury. J Neuroinflammation 2016; 13:154. [PMID: 27316538 PMCID: PMC4912825 DOI: 10.1186/s12974-016-0623-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 09/30/2015] [Accepted: 06/13/2016] [Indexed: 11/26/2022] Open
Abstract
Background Spinal cord injury (SCI) causes loss of neurons and axons and results in motor and sensory function impairments. SCI elicits an inflammatory response and induces the infiltration of immune cells, predominantly macrophages, to the injured site. Decoy receptor 3 (DcR3), also known as tumor necrosis factor receptor superfamily member (TNFRSF)-6B, is a pleiotropic immunomodulator capable of inducing macrophage differentiation into the M2 phenotype and enhancing angiogenesis. Because M2 macrophages are crucial for the recovery of impaired motor functions, we ask whether DcR3 is beneficial for the functional recovery of locomotion in Sprague-Dawley (SD) rats after SCI. Methods Contusion injury of the spinal cord was performed using a New York University impactor at the ninth thoracic vertebrae, followed by intrathecal injection of 15 μg recombinant protein comprising DcR3 (DcR3.Fc) in 5 μl of normal saline as the treatment, or 5 μl of normal saline as the control, into the injury epicenter. Functional recovery was evaluated using an open-field test weekly up to 6 weeks after injury. The cavity size and myelin sparing in the rostral-to-caudal region, including the epicenter of the injury, were then examined in SCI rats by histological staining. The expression of anti-inflammatory cytokines and the presence of M2 macrophages were determined by quantitative real-time polymerase chain reaction (qPCR) and immunohistochemistry at 7 day after SCI. Statistical analysis was performed using a two-tailed Student’s t test. Results Intrathecal administration of DcR3.Fc significantly improved locomotor function and reduced secondary injury with a smaller wound cavity and increased myelin sparing at the lesion site. Compared with the control group, DcR3.Fc-treated rats had increased vascularization at the injury epicenter along with higher levels of interleukin (IL)-4 and IL-10 and lower level of IL-1β on DcR3.Fc-treated rats at day 7 after SCI. Moreover, higher levels of arginase I (Arg I) and CD206 (M2 macrophage markers) and RECA-1 (endothelial marker) were observed in the epicenter on day 7 after SCI by immunofluorescence staining. Conclusions These results indicated that DcR3.Fc may promote the M2 macrophage infiltration and enhanced angiogenesis at the lesion site, thus preserving a greater amount of spinal cord tissues and enhancing functional recovery after SCI.
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Affiliation(s)
- Chuan-Wen Chiu
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei, 11221, Taiwan.,Neural Regeneration Laboratory, Taipei, 11217, Taiwan
| | - Wen-Hung Huang
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei, 11221, Taiwan.,Neural Regeneration Laboratory, Taipei, 11217, Taiwan
| | - Shao-Ji Lin
- Neural Regeneration Laboratory, Taipei, 11217, Taiwan
| | | | - Hsu Ma
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, 11217, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan. .,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan. .,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Henrich Cheng
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei, 11221, Taiwan. .,Neural Regeneration Laboratory, Taipei, 11217, Taiwan. .,Center for Neural Regeneration, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, 11217, Taiwan.
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Hsieh SL. CLEC18 family are novel C-type lectins with differential binding specificity to glycans and TLR ligands. The Journal of Immunology 2016. [DOI: 10.4049/jimmunol.196.supp.203.4] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
The human C-type lectin 18 (clec18) gene cluster, which contains clec18a, clec18b and clec18c three loci, is located in human chromosome 16q22. Even though the amino acid sequences of CLEC18A, CLEC18B, and CLEC18C are almost identical, several amino acid residues located in the C-type lectin-like domain (CTLD) and the Sperm-Coating Protein/Tpx-1/Ag5/PR-1/Sc7 (SCP/TAPS) domain, also known as the cysteine-rich secretory proteins/antigen 5/pathogenesis-related 1 proteins (CAP) domain, are distinct from each other. Genotyping by real-time PCR and sequencing further shows the presence of multiple alleles in clec18a/b/c loci. Flow cytometry analysis demonstrates that CLEC18 (CLEC18A, B and C) are expressed abundantly in human peripheral blood cells. Moreover, CLEC18 expression is further upregulated when monocytes differentiate into macrophages and dendritic cells (DCs). Immunofluorescence staining reveals that CLEC18 are localized in the endoplasmic reticulum (ER), Golgi apparatus, and endosome. Interestingly, CLEC18 are also detectable in human sera and culture supernatants from primary cells and 293T cells overexpressing CLEC18. Moreover, CLEC18 bind polysaccharide in Ca2+–independent manner, and the amino acid residues S/R339 and D/N421 in CTLD domain contribute to their differential binding abilities to polysaccharides isolated from Ganoderma lucidum (GLPS-F3). The S339 (CLEC18A) and R339 (CLEC18A-1) displayed differential binding affinity to TLR ligands. Their roles to determine host responses to virus infection are under intensive investigation now.
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Huang YL, Chen ST, Liu RS, Chen YH, Lin CY, Huang CH, Shu PY, Liao CL, Hsieh SL. CLEC5A is critical for dengue virus-induced osteoclast activation and bone homeostasis. J Mol Med (Berl) 2016; 94:1025-37. [PMID: 27033255 PMCID: PMC4992505 DOI: 10.1007/s00109-016-1409-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 08/04/2015] [Revised: 01/27/2016] [Accepted: 03/04/2016] [Indexed: 12/31/2022]
Abstract
Abstract Osteoclasts are bone tissue macrophages critical to maintain bone homeostasis. However, whether osteoclasts are susceptible to flaviviral infections and involved in dengue virus (DV)-induced disease pathogenesis is still unknown. In this study, we found that osteoclasts were preferentially susceptible to DV infection and produced similar amounts of cytokines and infectious virions as macrophages. Interestingly, DV-induced cytokine secretion and nuclear translocation of the transcription factor NFATc1 in osteoclast via the Syk-coupled myeloid C-type lectin member 5A (CLEC5A). Moreover, DV caused transient inflammatory reaction in bone tissue and upregulated osteolytic activity to release C-telopeptide of type I collagen (CTX-1) from bone tissue. Furthermore, DV-induced osteolytic activity was attenuated in CLEC5A-deficient mice, and administration of antagonistic anti-CLEC5A mAb inhibited DV-activated osteolytic activity and reduced CTX-1 serum level in vivo. This observation suggests that osteoclasts serve as a novel target for DV, and transient upregulation of osteolytic activity may contribute to the clinical symptoms in dengue patients. Key messages Cultured osteoclasts were susceptible to DV infection. Osteoclasts produced similar amounts of cytokines and infectious virions as macrophages. DV induced nuclear translocation of NFATc1 in osteoclast via CLEC5A. DV caused transient inflammatory reaction in bone tissue and upregulated osteolytic activity. Antagonistic anti-CLEC5A mAb inhibited DV-activated osteolytic activity in vivo.
Electronic supplementary material The online version of this article (doi:10.1007/s00109-016-1409-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ya-Lang Huang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Szu-Ting Chen
- Department of Microbiology and Immunology, Taipei Medical University, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115, Taiwan
| | - Ren-Shyan Liu
- Molecular and Genetic Imaging Core, Department of Nuclear Medicine, National Yang-Ming University Medical School and Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yen-Hsu Chen
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Chun-Yu Lin
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Chung-Hao Huang
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Pei-Yun Shu
- Divisions of Infectious Disease, Center for Disease Control, Taipei, Taiwan
| | - Ching-Len Liao
- Institute of Infectious Diseases and Vaccinology, National Health Research Institute, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan. .,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan. .,Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115, Taiwan. .,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.
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Chen MH, Kan HT, Liu CY, Yu WK, Lee SS, Wang JH, Hsieh SL. Serum decoy receptor 3 is a biomarker for disease severity in nonatopic asthma patients. J Formos Med Assoc 2016; 116:49-56. [PMID: 26911723 DOI: 10.1016/j.jfma.2016.01.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 01/13/2016] [Accepted: 01/20/2016] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND/PURPOSE Decoy receptor 3 (DcR3), a soluble receptor of the tumor necrosis factor receptor superfamily, is a pleiotropic immunomodulator. The aim of this study was to investigate serum DcR3 levels in atopic and nonatopic asthma patients. METHODS The serum DcR3 levels of 70 adults with asthma and 20 healthy controls were determined by enzyme-linked immunosorbent assay (ELISA). The asthma patients were divided into atopic and nonatopic subgroups, based on the presence or absence of immunoglobulin E (IgE) specific to allergen. Correlations between serum DcR3 levels and blood total-eosinophil counts, forced expiratory volume in 1 second (FEV1), FEV1/forced vital capacity (FVC), and Asthma Control Test (ACT) scores were analyzed. RESULTS The mean serum DcR3 level was significantly higher in asthma patients than in healthy controls (266.1 ± 60.6 pg/mL vs. 63.7 ± 21.9 pg/mL, p = 0.003), but there was no significant difference between the mean serum DcR3 level of asthma patients with atopy (37 patients) and patients without atopy (33 patients; 298.7 ± 111.2 pg/mL vs. 230.6 ± 38.5 pg/mL, p = 0.064). However, the serum DcR3 level was positively correlated with the total eosinophil count (r = 0.448, p = 0.012) and inversely correlated with the percentages of predicted FEV1, FEV1/FVC, and ACT score (r = 0.409, p = 0.018; r = -0.399, p = 0.021; and r = -0.505, p = 0.003, respectively) in nonatopic asthma patients, but not in atopic patients. CONCLUSION High serum DcR3 levels are associated with disease severity in nonatopic asthma patients, which suggests that DcR3 is a potential biomarker that can be used to predict the severity of nonatopic asthma.
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Affiliation(s)
- Ming-Han Chen
- Department of Medicine, National Yang-Ming University, Taipei, Taiwan; Division of Allergy, Immunology and Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hung-Tsai Kan
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chun-Yu Liu
- Department of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Wen-Kuang Yu
- Department of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shinn-Shing Lee
- Section of Allergy, Immunology, and Rheumatology, Department of Medicine, Cheng Hsin Rehabilitation Medical Center, Taipei, Taiwan
| | - Jia-Horng Wang
- Critical Care, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan; Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan.
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Li TH, Huang CC, Yang YY, Lee KC, Hsieh SL, Hsieh YC, Alan L, Lin HC, Lee SD, Tsai CY. Thalidomide Improves the Intestinal Mucosal Injury and Suppresses Mesenteric Angiogenesis and Vasodilatation by Down-Regulating Inflammasomes-Related Cascades in Cirrhotic Rats. PLoS One 2016; 11:e0147212. [PMID: 26820153 PMCID: PMC4731147 DOI: 10.1371/journal.pone.0147212] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 12/30/2015] [Indexed: 12/20/2022] Open
Abstract
Background and Aims By blocking TNFα-related effects, thalidomide not only inhibits hepatic fibrogenesis but improves peripheral vasodilatation and portal hypertension in cirrhotic rats. Nonetheless, the investigation of thalidomide's effects on splanchnic and collateral microcirculation has been limited. Our study explored the roles of intestinal and mesenteric TNFα along with inflammasome-related pathway in relation to cirrhosis and the splanchnic/collateral microcirculation. Methods Using in vivo and in vitro approaches, mechanisms of the effects of thalidomide on intestinal and mesenteric inflammatory, vasodilatory and angiogenic cascades-related abnormalities were explored in cirrhotic rats that had received 1-month thalidomide (C-T) treatment. Results In cirrhotic rats, high tumor necrosis factor (TNF)α, vascular endothelial growth factor (VEGF) and nitric oxide (NO)x levels were associated with the NOD-like receptors protein 3 (NLRP3), IL-1β and caspase-1 inflammasome over-expression in splenorenal shunt and mesenteric tissues. The thalidomide-related inhibition of mesenteric and splenorenal shunt inflammasome expression was accompanied by a significantly decreased intestinal mucosal injury and inflammasome immunohistochemical staining expression. Suppression of various angiogenic cascades, namely VEGF-NOS-NO, was paralleled by a decrease in mesenteric angiogenesis as detected by CD31 immunofluorescence staining and by reduced portosystemic shunting (PSS) in C-T rats. The down-regulation of the mesenteric and collateral vasodilatory VEGF-NOS-NO cascades resulted in a correction of vasoconstrictive hypo-responsiveness and in an attenuation of vasodilatory hyper-responsiveness when analyzed by in situ perfusion of the superior mesenteric arterial (SMA) and portosystemic collaterals. There was also a decrease in SMA blood flow and an increase in SMA resistance in the C-T rats. Additionally, acute incubation with thalidomide abolished TNFα-augmented VEGF-mediated migration of and tube formation of human umbilical vein endothelial cells, which was accompanied by corresponding changes in inflammatory and angiogenic substances release. Conclusions The suppression of inflammasome over-expression by chronic thalidomide treatment ameliorates inflammatory, angiogenic and vasodilatory cascades-related pathogenic changes in the splanchnic and collateral microcirculation of cirrhotic rats. Thalidomide seems to be a promising agent that might bring about beneficial changes to the disarrangements of peripheral, hepatic, splanchnic and collateral systems in cirrhosis.
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Affiliation(s)
- Tzu-Hao Li
- Division of Allergy, Immunology, and Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Chia-Chang Huang
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of General Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ying-Ying Yang
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of General Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- * E-mail: (YYY); (HCL)
| | - Kuei-Chuan Lee
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yun-Cheng Hsieh
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Lin Alan
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Han-Chieh Lin
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- * E-mail: (YYY); (HCL)
| | | | - Chang-Youh Tsai
- Division of Allergy, Immunology, and Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
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Huang YL, Pai FS, Tsou YT, Mon HC, Hsu TL, Wu CY, Chou TY, Yang WB, Chen CH, Wong CH, Hsieh SL. Human CLEC18 Gene Cluster Contains C-type Lectins with Differential Glycan-binding Specificity. J Biol Chem 2015; 290:21252-63. [PMID: 26170455 DOI: 10.1074/jbc.m115.649814] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 03/17/2015] [Indexed: 11/06/2022] Open
Abstract
The human C-type lectin 18 (clec18) gene cluster, which contains three clec18a, clec18b, and clec18c loci, is located in human chromosome 16q22. Although the amino acid sequences of CLEC18A, CLEC18B, and CLEC18C are almost identical, several amino acid residues located in the C-type lectin-like domain (CTLD) and the sperm-coating protein/Tpx-1/Ag5/PR-1/Sc7 (SCP/TAPS) domain, also known as the cysteine-rich secretory proteins/antigen 5/pathogenesis-related 1 proteins (CAP) domain, are distinct from each other. Genotyping by real-time PCR and sequencing further shows the presence of multiple alleles in clec18a/b/c loci. Flow cytometry analysis demonstrates that CLEC18 (CLEC18A, -B, and -C) are expressed abundantly in human peripheral blood cells. Moreover, CLEC18 expression is further up-regulated when monocytes differentiate into macrophages and dendritic cells. Immunofluorescence staining reveals that CLEC18 are localized in the endoplasmic reticulum, Golgi apparatus, and endosome. Interestingly, CLEC18 are also detectable in human sera and culture supernatants from primary cells and 293T cells overexpressing CLEC18. Moreover, CLEC18 bind polysaccharide in Ca(2+)-independent manner, and amino acid residues Ser/Arg(339) and Asp/Asn(421) in CTLD domain contribute to their differential binding abilities to polysaccharides isolated from Ganoderma lucidum (GLPS-F3). The Ser(339) (CLEC18A) → Arg(339) (CLEC18A-1) mutation completely abolishes CLEC18A-1 binding to GLPS-F3, and a sugar competition assay shows that CLEC18 preferentially binds to fucoidan, β-glucans, and galactans. Because proteins with the SCP/TAPS/CAP domain are able to bind sterol and acidic glycolipid, and are involved in sterol transport and β-amyloid aggregation, it would be interesting to investigate whether CLEC18 modulates host immunity via binding to glycolipids, and are also involved in glycolipid transportation and protein aggregation in the future.
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Affiliation(s)
- Ya-Lang Huang
- From the Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Feng-Shuo Pai
- the Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei
| | - Yun-Ting Tsou
- From the Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Hsien-Chen Mon
- National Yang-Ming University School of Medicine, Taipei
| | - Tsui-Ling Hsu
- the Genomics Research Center, Academia Sinica, Taipei
| | - Chung-Yi Wu
- the Genomics Research Center, Academia Sinica, Taipei
| | - Teh-Ying Chou
- the Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei
| | - Wen-Bin Yang
- the Genomics Research Center, Academia Sinica, Taipei
| | | | - Chi-Huey Wong
- the Genomics Research Center, Academia Sinica, Taipei
| | - Shie-Liang Hsieh
- From the Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan, the Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, the Genomics Research Center, Academia Sinica, Taipei, the Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, and the Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
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Tarng DC, Tseng WC, Lee PY, Chiou SH, Hsieh SL. Induced Pluripotent Stem Cell-Derived Conditioned Medium Attenuates Acute Kidney Injury by Downregulating the Oxidative Stress-Related Pathway in Ischemia-Reperfusion Rats. Cell Transplant 2015; 25:517-30. [PMID: 26132529 DOI: 10.3727/096368915x688542] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Teratoma-like formation addresses a critical safety concern for the potential utility of induced pluripotent stem cells (iPSCs). Therefore, therapy utilizing iPSC-derived conditioned medium (iPSC-CM) for acute kidney injury (AKI) has attracted substantial interest. A recent study showed that iPSC-CM effectively alleviated ventilator-induced lung injury in rats. It prompts us to assess the therapeutic effects of iPSC-CM on ischemic AKI. First, we assessed the changes in renal function and tubular cell apoptosis by intraperitoneal administration of iPSC-CM to ischemia-reperfusion (I/R) rats. Second, we explored the oxidative stress-related pathway in the apoptosis of renal tubular cells subjected to hypoxia-reoxygenation (H/R). Administration of iPSC-CM significantly improved renal function and protected tubular cells against apoptosis in rats with I/R-AKI, and the optimal effect was observed at the 50-fold concentrated iPSC-CM. iPSC-CM also mitigated the H/R-induced apoptosis of NRK-52E cells in vitro. Reactive oxygen species (ROS) production was augmented in kidneys following I/R and in NRK-52E cells subjected to H/R. Meanwhile, expressions of phosphorylated p38 MAPK, TNF-α, and cleaved caspase 3 and NF-κB activity were consistently increased in vivo and in vitro. Following administration of iPSC-CM, ROS production was abolished, and inflammatory cytokine expression was significantly suppressed. Annexin V-propidium iodide flow cytometry and in situ TUNEL assay further showed that iPSC-CM markedly attenuated H/R- or I/R-induced tubular cell apoptosis. Intriguingly, treatment with iPSC-CM significantly improved the survival of rats with I/R-induced AKI. iPSC-CM represents a favorable source of stem cell-based therapy and may serve as a potential therapeutic strategy for kidney repair in ischemic AKI.
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Affiliation(s)
- Der-Cherng Tarng
- Department and Institute of Physiology, National Yang-Ming University, Taipei, Taiwan
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Huang MT, Chen ST, Wu HY, Chen YJ, Chou TY, Hsieh SL. DcR3 suppresses influenza virus-induced macrophage activation and attenuates pulmonary inflammation and lethality. J Mol Med (Berl) 2015; 93:1131-43. [PMID: 25940317 DOI: 10.1007/s00109-015-1291-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 10/29/2014] [Revised: 04/19/2015] [Accepted: 04/24/2015] [Indexed: 12/28/2022]
Abstract
UNLABELLED Influenza A virus (IAV) infects macrophages and stimulates innate immunity receptors and sensors to produce proinflammatory cytokines and chemokines, which are responsible for IAV-induced pulmonary inflammation and injury. Decoy receptor 3 (DcR3) is a soluble protein belonging to the tumor necrosis factor receptor superfamily (TNFRSF), and is able to skew macrophage differentiation into an M2 phenotype. We demonstrated that DcR3 attenuated IAV-induced secretion of proinflammatory cytokines and chemokine from macrophages, and mitigated pulmonary infiltration and reduce lethality. Proteome-wide phosphoproteomic mapping revealed that DcR3 not only activated STK10, a negative regulator of cell migration, but also inactivated PKC-α, which are crucial for the activation of ERK and JNK in human macrophages. Furthermore, less pulmonary infiltration with lower levels of proinflammatory cytokines and chemokine in bronchoalveolar lavage fluid (BALF) were observed in DcR3-transgenic mice. Moreover, recombinant DcR3.Fc and heparan sulfate proteoglycan binding domain of DcR3.Fc (HBD.Fc) fusion proteins attenuated weight loss and protected mice from IAV-induced lethality. Thus, DcR3-mediated protection is not only via suppression of proinflammatory cytokine and chemokine release, but also via activation of STK10 to inhibit cell infiltration. DcR3 fusion proteins may become therapeutic agents to protect host from IAV-induced lethality in the future. KEY MESSAGE • DcR3 suppresses IAV-induced cytokine secretion.• DcR3 inhibits IAV-induced JNK and ERK activation in human macrophages.• DcR3 downregulates TLR3 and 7 expressions in human macrophages.• DcR3 protects mice from IAV-induced lethality.
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Affiliation(s)
- Ming-Ting Huang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Szu-Ting Chen
- Department of Microbiology and Immunology, School of Medicine, Taipei Medical University, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsin-Yi Wu
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
| | - Yu-Ju Chen
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
- Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115, Taiwan
| | - Teh-Ying Chou
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan.
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.
- Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115, Taiwan.
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.
- Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan.
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