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Nugroho CMH, Silaen OSM, Kurnia RS, Krisnamurti DGB, Putra MA, Indrawati A, Poetri ON, Wibawan IWT, Widyaningtyas ST, Soebandrio A. In Vitro Antiviral Activity of NanB Bacterial Sialidase Against Avian Influenza H9N2 Virus in MDCK cells. Avian Pathol 2024:1-24. [PMID: 39069790 DOI: 10.1080/03079457.2024.2386315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
AbstractThe Avian influenza virus is an infectious agent that may cause global health problem issues in poultry and potentially zoonotic. In recent decades, bacterial-derived sialidases have been extensively studied for their ability to inhibit avian influenza virus infections. In this study the antiviral activity of NanB sialidase from Pasteurella multocida was investigated through in vitro analysis using MDCK cells. NanB sialidase was purified from P. multocida for testing its toxicity and its ability to hydrolyze its sialic acid receptors on MDCK cells. H9N2 challenge virus was propagated in MDCK cells until cytopathic effects (CPE) appeared. Antiviral activity of NanB sialidase was conducted using MDCK cells, and then observed based on cell morphology, viral copy number, and expression of apoptosis-mediating genes. NanB sialidase effectively hydrolyzes Neu5Acα(2-6)Gal sialic acid at the dose of 129 mU/ml, while at 258 mU/ml it cause toxicity on MDCK cells. Antiviral activity of sialidase is evident based on the significantly decrease in viral copy number at all doses administrated. The increase of p53 and caspase-3 expression was observed in infected cells without sialidase. Our study demonstrates the ability of NanB sialidase to inhibit H9N2 virus replication based on observations of sialic acid hydrolysis, reduction in viral copy number, and expression of apoptosis-related genes. The future application of sialidase may be considered as an antiviral strategy against avian influenza H9N2 virus infections.
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Affiliation(s)
- Christian Marco Hadi Nugroho
- Doctoral Program in Biomedical Sciences, Faculty of Medicine, University of Indonesia, DKI Jakarta - 10430, Indonesia
- Animal Health Research and Diagnostic Unit, PT Medika Satwa Laboratoris, Bogor - 16166, Indonesia
| | - Otto Sahat Martua Silaen
- Doctoral Program in Biomedical Sciences, Faculty of Medicine, University of Indonesia, DKI Jakarta - 10430, Indonesia
| | - Ryan Septa Kurnia
- Doctoral Program in Biomedical Sciences, Faculty of Medicine, University of Indonesia, DKI Jakarta - 10430, Indonesia
- Animal Health Research and Diagnostic Unit, PT Medika Satwa Laboratoris, Bogor - 16166, Indonesia
| | - Desak Gede Budi Krisnamurti
- Department of Medical Pharmacy, Faculty of Medicine, University of Indonesia, DKI Jakarta - 10430, Indonesia
| | - Muhammad Ade Putra
- Department of Animal Disease and Veterinary Health, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor - 16680, Indonesia
| | - Agustin Indrawati
- Department of Animal Disease and Veterinary Health, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor - 16680, Indonesia
| | - Okti Nadia Poetri
- Department of Animal Disease and Veterinary Health, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor - 16680, Indonesia
| | - I Wayan Teguh Wibawan
- Department of Animal Disease and Veterinary Health, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor - 16680, Indonesia
| | - Silvia Tri Widyaningtyas
- Virology and Cancer Pathobiology Research Centre, Faculty of Medicine, University of Indonesia, DKI Jakarta - 10430, Indonesia
| | - Amin Soebandrio
- Department of Microbiology, Faculty of Medicine, University of Indonesia, DKI Jakarta - 10430, Indonesia
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Dabbaghipour R, Ahmadi E, Entezam M, Farzam OR, Sohrabi S, Jamali S, Sichani AS, Paydar H, Baradaran B. Concise review: The heterogenous roles of BATF3 in cancer oncogenesis and dendritic cells and T cells differentiation and function considering the importance of BATF3-dependent dendritic cells. Immunogenetics 2024; 76:75-91. [PMID: 38358555 DOI: 10.1007/s00251-024-01335-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/23/2023] [Indexed: 02/16/2024]
Abstract
The transcription factor, known as basic leucine zipper ATF-like 3 (BATF3), is a crucial contributor to the development of conventional type 1 dendritic cells (cDC1), which is definitely required for priming CD8 + T cell-mediated immunity against intracellular pathogens and malignancies. In this respect, BATF3-dependent cDC1 can bring about immunological tolerance, an autoimmune response, graft immunity, and defense against infectious agents such as viruses, microbes, parasites, and fungi. Moreover, the important function of cDC1 in stimulating CD8 + T cells creates an excellent opportunity to develop a highly effective target for vaccination against intracellular pathogens and diseases. BATF3 has been clarified to control the development of CD8α+ and CD103+ DCs. The presence of BATF3-dependent cDC1 in the tumor microenvironment (TME) reinforces immunosurveillance and improves immunotherapy approaches, which can be beneficial for cancer immunotherapy. Additionally, BATF3 acts as a transcriptional inhibitor of Treg development by decreasing the expression of the transcription factor FOXP3. However, when overexpressed in CD8 + T cells, it can enhance their survival and facilitate their transition to a memory state. BATF3 induces Th9 cell differentiation by binding to the IL-9 promoter through a BATF3/IRF4 complex. One of the latest research findings is the oncogenic function of BATF3, which has been approved and illustrated in several biological processes of proliferation and invasion.
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Affiliation(s)
- Reza Dabbaghipour
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Ahmadi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mona Entezam
- Department of Medical Genetics, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Omid Rahbar Farzam
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Sohrabi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sajjad Jamali
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Saber Sichani
- Department of Medical Genetics, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Biology, Texas A&M University, College Station, TX, 77843, USA
| | - Hadi Paydar
- Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Sun J, Tian T, Wang N, Jing X, Qiu L, Cui H, Liu Z, Liu J, Yan L, Li D. Pretreatment level of serum sialic acid predicts both qualitative and quantitative bone metastases of prostate cancer. Front Endocrinol (Lausanne) 2024; 15:1338420. [PMID: 38384968 PMCID: PMC10880016 DOI: 10.3389/fendo.2024.1338420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/18/2024] [Indexed: 02/23/2024] Open
Abstract
Background Recently, serum sialic acid (SA) has emerged as a distinct prognostic marker for prostate cancer (PCa) and bone metastases, warranting differential treatment and prognosis for low-volume (LVD) and high-volume disease (HVD). In clinical settings, evaluating bone metastases can prove advantageous. Objectives We aimed to establish the correlation between SA and both bone metastasis and HVD in newly diagnosed PCa patients. Methods We conducted a retrospective analysis of 1202 patients who received a new diagnosis of PCa between November 2014 and February 2021. We compared pretreatment SA levels across multiple groups and investigated the associations between SA levels and the clinical parameters of patients. Additionally, we compared the differences between HVD and LVD. We utilized several statistical methods, including the non-parametric Mann-Whitney U test, Spearman correlation, receiver operating characteristic (ROC) curve analysis, and logistic regression. Results The results indicate that SA may serve as a predictor of bone metastasis in patients with HVD. ROC curve analysis revealed a cut-off value of 56.15 mg/dL with an area under the curve of 0.767 (95% CI: 0.703-0.832, P < 0.001) for bone metastasis versus without bone metastasis and a cut-off value of 65.80 mg/dL with an area under the curve of 0.766 (95% CI: 0.644-0.888, P = 0.003) for HVD versus LVD. Notably, PCa patients with bone metastases exhibited significantly higher SA levels than those without bone metastases, and HVD patients had higher SA levels than LVD patients. In comparison to the non-metastatic and LVD cohorts, the cohort with HVD exhibited higher levels of alkaline phosphatase (AKP) (median, 122.00 U/L), fibrinogen (FIB) (median, 3.63 g/L), and prostate-specific antigen (PSA) (median, 215.70 ng/mL), as well as higher Gleason scores (> 7). Multivariate logistic regression analysis demonstrated that an SA level of > 56.15 mg/dL was independently associated with the presence of bone metastases in PCa patients (OR = 2.966, P = 0.018), while an SA level of > 65.80 mg/dL was independently associated with HVD (OR = 1.194, P = 0.048). Conclusion The pretreatment serum SA level is positively correlated with the presence of bone metastases.
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Affiliation(s)
- Jingtao Sun
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Tian Tian
- Respiratory and Critical Care Medicine Department, Qilu Hospital of Shandong University, Jinan, China
| | - Naiqiang Wang
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Xuehui Jing
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
- Department of Urology, Yucheng People’s Hospital, Dezhou, China
| | - Laiyuan Qiu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Haochen Cui
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Zhao Liu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Jikai Liu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Lei Yan
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Dawei Li
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
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Kałuża A, Trzęsicka K, Drzyzga D, Ferens-Sieczkowska M. Aberrant Mannosylated and Highly Fucosylated Glycoepitopes of Prostatic Acid Phosphatase as Potential Ligands for Dendritic-Cell Specific ICAM-Grabbing Nonintegrin (DC-SIGN) in Human Seminal Plasma-A Step towards Explaining Idiopathic Infertility. Biomolecules 2023; 14:58. [PMID: 38254658 PMCID: PMC10813591 DOI: 10.3390/biom14010058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/28/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Semen prostatic acid phosphatase (PAP) has been proposed as an endogenous ligand for dendritic cell-specific ICAM-3-grabbing nonintegrin (DC-SIGN), which plays a critical immuno-modulating role in maintaining homeostasis in the female reproductive tracts. In the current study, we assumed that semen PAP bears a set of fucosylated and mannosylated glycans, which may mediate the efficient binding of PAP to DC-SIGN. To investigate this hypothesis, we developed ELISA assays using Galanthus nivalis and Lotus tetragonolobus lectins capable of binding mannose-containing glycans or LewisX and LewisY motifs, respectively. In our assay with Galanthus nivalis, we detected that the relative reactivity of PAP mannose-presenting glycans in the normozoospermic idiopathic group was significantly higher than in the asthenozoospermic, oligozoospermic and oligoasthenozoospermic groups. Simultaneously, we observed slight differences in the relative reactivities of PAP glycans with Lotus tetragonolobus lectin among groups of patients with abnormal semen parameters. Subsequently, we examined whether DC-SIGN interacts with seminal plasma PAP glycans, and we detected a significantly higher relative reactivity in the normozoospermic group compared to the oligozoospermic group. Finally, we concluded that the significantly aberrant abundance of mannosylated functional groups of PAP among patients with semen disorders can suggest that PAP may thereby be engaged in modulating the immune response and promoting a tolerogenic response to male antigens in the female reproductive system.
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Affiliation(s)
- Anna Kałuża
- Department of Biochemistry and Immunochemistry, Division of Chemistry and Immunochemistry, Wroclaw Medical University, M. Skłodowskiej-Curie 48/50, 50-369 Wroclaw, Poland;
| | - Katarzyna Trzęsicka
- INVICTA, Research and Development Center, Polna 64, 81-740 Sopot, Poland; (K.T.); (D.D.)
| | - Damian Drzyzga
- INVICTA, Research and Development Center, Polna 64, 81-740 Sopot, Poland; (K.T.); (D.D.)
| | - Mirosława Ferens-Sieczkowska
- Department of Biochemistry and Immunochemistry, Division of Chemistry and Immunochemistry, Wroclaw Medical University, M. Skłodowskiej-Curie 48/50, 50-369 Wroclaw, Poland;
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Poznyak A, Kashirskikh D, Postnov A, Popov M, Sukhorukov V, Orekhov A. Sialic acid as the potential link between lipid metabolism and inflammation in the pathogenesis of atherosclerosis. Braz J Med Biol Res 2023; 56:e12972. [PMID: 38088673 PMCID: PMC10712282 DOI: 10.1590/1414-431x2023e12972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/28/2023] [Indexed: 12/18/2023] Open
Abstract
In the modern world, cardiovascular diseases have a special place among the most common causes of death. Naturally, this widespread problem cannot escape the attention of scientists and researchers. One of the main conditions preceding the development of fatal cardiovascular diseases is atherosclerosis. Despite extensive research into its pathogenesis and possible prevention and treatment strategies, many gaps remain in our understanding of this disease. For example, the concept of multiple low-density lipoprotein modifications was recently stated, in which desialylation is of special importance. Apart from this, sialic acids are known to be important contributors to processes such as endothelial dysfunction and inflammation, which in turn are major components of atherogenesis. In this review, we have collected information on sialic acid metabolism, analyzed various aspects of its implication in atherosclerosis at different stages, and provided an overview of the role of particular groups of enzymes responsible for sialic acid metabolism in the context of atherosclerosis.
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Affiliation(s)
- A.V. Poznyak
- Institute for Atherosclerosis Research, Moscow, Russia
| | | | - A.Y. Postnov
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Federal State Budgetary Scientific Institution, Petrovsky National Research Centre of Surgery (FSBSI “Petrovsky NRCS”), Moscow, Russia
| | - M.A. Popov
- Department of Cardiac Surgery, Moscow Regional Research and Clinical Institute (MONIKI), Moscow, Russia
| | - V.N. Sukhorukov
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Federal State Budgetary Scientific Institution, Petrovsky National Research Centre of Surgery (FSBSI “Petrovsky NRCS”), Moscow, Russia
| | - A.N. Orekhov
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Federal State Budgetary Scientific Institution, Petrovsky National Research Centre of Surgery (FSBSI “Petrovsky NRCS”), Moscow, Russia
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Yang J, Li H, Zhao Y. Dessert or Poison? The Roles of Glycosylation in Alzheimer's, Parkinson's, Huntington's Disease, and Amyotrophic Lateral Sclerosis. Chembiochem 2023; 24:e202300017. [PMID: 37440197 DOI: 10.1002/cbic.202300017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 04/27/2023] [Indexed: 07/14/2023]
Abstract
Ministry of Education and Key Laboratory of Neurons and glial cells of the central nervous system (CNS) are modified by glycosylation and rely on glycosylation to achieve normal neural function. Neurodegenerative disease is a common disease of the elderly, affecting their healthy life span and quality of life, and no effective treatment is currently available. Recent research implies that various glycosylation traits are altered during neurodegenerative diseases, suggesting a potential implication of glycosylation in disease pathology. Herein, we summarized the current knowledge about glycosylation associated with Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and Amyotrophic lateral sclerosis (ALS) pathogenesis, focusing on their promising functional avenues. Moreover, we collected research aimed at highlighting the need for such studies to provide a wealth of disease-related glycosylation information that will help us better understand the pathophysiological mechanisms and hopefully specific glycosylation information to provide further diagnostic and therapeutic directions for neurodegenerative diseases.
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Affiliation(s)
- Jiajun Yang
- Department of Biochemistry and Molecular Biology School of Basic Medical Science, Guizhou Medical University, Guiyang, 550004, China
- Key Laboratory of Endemic and Ethenic Diseases Medical Molecular Biology of Guizhou Province Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Hongmei Li
- Department of Biochemistry and Molecular Biology School of Basic Medical Science, Guizhou Medical University, Guiyang, 550004, China
- Key Laboratory of Endemic and Ethenic Diseases Medical Molecular Biology of Guizhou Province Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Yuhui Zhao
- Key Laboratory of Endemic and Ethenic Diseases Medical Molecular Biology of Guizhou Province Guizhou Medical University, Guiyang, 550004, Guizhou, China
- Guizhou Medical University, Guiyang, 550004, China
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Guan B, Zhang Z, Cao X, Yang M, Chai Y, Amantai X, Luo X, Feng D, Liu Y, Yue X, Liu X. Characterization and comparison site-specific N-glycosylation profiling of milk fat globule membrane proteome in donkey and human colostrum and mature milk. Food Chem 2023; 419:136081. [PMID: 37037133 DOI: 10.1016/j.foodchem.2023.136081] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/12/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Abstract
Milk fat globule membrane (MFGM) proteins are highly glycosylated and involved in various biological processes within the body. However, information on site-specific N-glycosylation of MFGM glycoproteins in donkey and human milk remains limited. This study aimed to map the most comprehensive site-specific N-glycosylation fingerprinting of donkey and human MFGM glycoproteins using a site-specific glycoproteomics strategy. We identified 1,360, 457, 2,617, and 986 site-specific N-glycans from 296, 77, 214, and 196 N-glycoproteins in donkey colostrum (DC), donkey mature milk (DM), human colostrum (HC), and human mature milk (HM), respectively. Bioinformatics was used to describe the structure-activity relationships of DC, DM, HC, and HM MFGM N-glycoproteins. The results revealed differences in the molecular composition of donkey and human MFGM N-glycoproteins and the dynamic changes to site-specific N-glycosylation of donkey and human MFGM glycoproteins during lactation, deepening our understanding of the composition of donkey and human MFGM N-glycoproteins and their potential physiological roles.
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Affiliation(s)
- Boyuan Guan
- College of Food Science, Shenyang Agricultural University, Shenyang 11086, China
| | - Zhenghan Zhang
- College of Food Science, Shenyang Agricultural University, Shenyang 11086, China
| | - Xueyan Cao
- College of Food Science, Shenyang Agricultural University, Shenyang 11086, China
| | - Mei Yang
- College of Food Science, Shenyang Agricultural University, Shenyang 11086, China
| | - Yuxia Chai
- College of Food Science, Shenyang Agricultural University, Shenyang 11086, China
| | - Xiakouna Amantai
- College of Food Science, Shenyang Agricultural University, Shenyang 11086, China
| | - Xue Luo
- College of Food Science, Shenyang Agricultural University, Shenyang 11086, China
| | - Daguang Feng
- College of Science, Shenyang Agricultural University, Shenyang 11086, China
| | - Yiming Liu
- Foreign Language Teaching Department, Shenyang Agricultural University, Shenyang 11086, China
| | - Xiqing Yue
- College of Food Science, Shenyang Agricultural University, Shenyang 11086, China.
| | - Xiaoyu Liu
- Department of Obstetrics and Gynaecology, General Hospital of Northern Theater Command, Shenyang 110003, China.
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Huang J, Huang J, Zhang G. Insights into the Role of Sialylation in Cancer Metastasis, Immunity, and Therapeutic Opportunity. Cancers (Basel) 2022; 14:cancers14235840. [PMID: 36497322 PMCID: PMC9737300 DOI: 10.3390/cancers14235840] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/24/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
Sialylation is an enzymatic process that covalently attaches sialic acids to glycoproteins and glycolipids and terminates them by creating sialic acid-containing glycans (sialoglycans). Sialoglycans, usually located in the outmost layers of cells, play crucial biological roles, notably in tumor transformation, growth, metastasis, and immune evasion. Thus, a deeper comprehension of sialylation in cancer will help to facilitate the development of innovative cancer therapies. Cancer sialylation-related articles have consistently increased over the last four years. The primary subjects of these studies are sialylation, cancer, immunotherapy, and metastasis. Tumor cells activate endothelial cells and metastasize to distant organs in part by the interactions of abnormally sialylated integrins with selectins. Furthermore, cancer sialylation masks tumor antigenic epitopes and induces an immunosuppressive environment, allowing cancer cells to escape immune monitoring. Cytotoxic T lymphocytes develop different recognition epitopes for glycosylated and nonglycosylated peptides. Therefore, targeting tumor-derived sialoglycans is a promising approach to cancer treatments for limiting the dissemination of tumor cells, revealing immunogenic tumor antigens, and boosting anti-cancer immunity. Exploring the exact tumor sialoglycans may facilitate the identification of new glycan targets, paving the way for the development of customized cancer treatments.
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Affiliation(s)
- Jianmei Huang
- School of Medicine, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Jianming Huang
- Biochemistry and Molecular Biology, Sichuan Cancer Institute, Chengdu 610041, China
| | - Guonan Zhang
- School of Medicine, University of Electronic Science and Technology of China, Chengdu 610054, China
- Department of Gynecologic Oncology, Sichuan Cancer Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
- Correspondence:
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Fan T, Liao Q, Zhao Y, Dai H, Song S, He T, Wang Z, Huang J, Zeng Z, Guo H, Zhang H, Qiu X. Sialylated IgG in epithelial cancers inhibits antitumor function of T cells via Siglec-7. Cancer Sci 2022; 114:370-383. [PMID: 36310398 PMCID: PMC9899632 DOI: 10.1111/cas.15631] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 09/18/2022] [Accepted: 09/23/2022] [Indexed: 02/07/2023] Open
Abstract
Although effective, immune checkpoint blockade induces response in only a subset of cancer patients. There is an urgent need to discover new immune checkpoint targets. Recently, it was found that a class of sialic acid-binding immunoglobulin-like lectins (Siglecs) expressed on the surface of T cells in cancer patients inhibit T cell activation through their intracellular immunosuppressive motifs by recognizing sialic acid-carrying glycans, sialoglycans. However, ligands of Siglecs remain elusive. Here, we report sialylated IgG (SIA-IgG), a ligand to Siglec-7, that is highly expressed in epithelial cancer cells. SIA-IgG binds Siglec-7 directly and inhibits TCR signals. Blocking of either SIA-IgG or Siglec-7 elicited potent antitumor immunity in T cells. Our study suggests that blocking of Siglec-7/SIA-IgG offers an opportunity to enhance immune function while simultaneously sensitizing cancer cells to immune attack.
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Affiliation(s)
- Tianrui Fan
- Department of Immunology, School of Basic Medical SciencesPeking UniversityBeijingChina,NHC Key Laboratory of Medical ImmunologyPeking UniversityBeijingChina
| | - Qinyuan Liao
- Department of ImmunologyGuilin Medical UniversityGuilinChina
| | - Yang Zhao
- Department of Laboratory MedicinePeking University Third HospitalBeijingChina
| | - Hui Dai
- Department of Immunology, School of Basic Medical SciencesPeking UniversityBeijingChina,NHC Key Laboratory of Medical ImmunologyPeking UniversityBeijingChina
| | - Shiyu Song
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Tianhui He
- Department of Gynecology and ObstetricsThe Third Hospital of Peking UniversityBeijingChina
| | - Zihan Wang
- Department of Immunology, School of Basic Medical SciencesPeking UniversityBeijingChina,NHC Key Laboratory of Medical ImmunologyPeking UniversityBeijingChina
| | - Jing Huang
- Department of Immunology, School of Basic Medical SciencesPeking UniversityBeijingChina,NHC Key Laboratory of Medical ImmunologyPeking UniversityBeijingChina
| | - Zexian Zeng
- Center for Quantitative Biology, Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijingChina
| | - Hongyan Guo
- Department of Gynecology and ObstetricsThe Third Hospital of Peking UniversityBeijingChina
| | - Haizeng Zhang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Xiaoyan Qiu
- Department of Immunology, School of Basic Medical SciencesPeking UniversityBeijingChina,NHC Key Laboratory of Medical ImmunologyPeking UniversityBeijingChina
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Olejnik B, Ferens-Sieczkowska M. Seminal Plasma Glycoproteins as Potential Ligands of Lectins Engaged in Immunity Regulation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10489. [PMID: 36078205 PMCID: PMC9518496 DOI: 10.3390/ijerph191710489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Environmental pollution, chronic stress, and unhealthy lifestyle are factors that negatively affect reproductive potential. Currently, 15-20% of couples in industrialized countries face the problem of infertility. This growing health and social problem prompts researchers to explore the regulatory mechanisms that may be important for successful fertilization. In recent years, more attention has been paid to male infertility factors, including the impact of seminal plasma components on regulation of the female immune response to allogenic sperm, embryo and fetal antigens. Directing this response to the tolerogenic pathway is crucial to achieve a healthy pregnancy. According to the fetoembryonic defense hypothesis, the regulatory mechanism may be associated with the interaction of lectins and immunomodulatory glycoepitopes. Such interactions may involve lectins of dendritic cells and macrophages, recruited to the cervical region immediately after intercourse. Carbohydrate binding receptors include C type lectins, such as DC-SIGN and MGL, as well as galectins and siglecs among others. In this article we discuss the expression of the possible lectin ligands, highly fucosylated and high mannose structures, which may be recognized by DC-SIGN, glycans of varying degrees of sialylation, which may differ in their interaction with siglecs, as well as T and Tn antigens in O-glycans.
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Saad AA. Targeting cancer-associated glycans as a therapeutic strategy in leukemia. ALL LIFE 2022. [DOI: 10.1080/26895293.2022.2049901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Ashraf Abdullah Saad
- Unit of Pediatric Hematologic Oncology and BMT, Sultan Qaboos University Hospital, Muscat, Oman
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12
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"Double hit" strategy: Removal of sialic acid from the dendritic cell surface and loading with CD44+/CD24-/low cell lysate inhibits tumor growth and metastasis by targeting breast cancer stem cells. Int Immunopharmacol 2022; 107:108684. [PMID: 35272171 DOI: 10.1016/j.intimp.2022.108684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/19/2022] [Accepted: 03/03/2022] [Indexed: 11/22/2022]
Abstract
Cancer stem cells (CSCs), which represent the root cause of resistance to conventional treatments, recurrence, and metastasis, constitute the critical point of failure in cancer treatments. Targeting CSCs with dendritic cell (DC)-based vaccines have been an effective strategy, but sialic acids on the surface of DCs limit the interaction with loaded antigens. We hypothesized that removal of sialic acid moieties on immature DCs (iDCs) could significantly affect DC-CSC-antigen loading, thereby leading to DC maturation and improving immune recognition and activity. The lysate of CD44+/CD24-/low breast CSCs (BCSCs) was pulsed with sialidase-treated DCs to obtain mature dendritic cells (mDCs). The roles of cytoskeletal elements in antigen uptake and dendritic cell maturation were determined by immunofluorescence staining, flow cytometry, and cytokine measurement, respectively. To test the efficacy of the vaccine in vivo, CSCs tumor-bearing mice were immunized with iDC or mDC. Pulsing DCs with antigen increased the expression levels of actin, gelsolin, talin, WASp, and Arp2, especially in podosome-like regions. Compared with iDCs, mDCs expressed high levels of CD40, CD80, CD86 costimulatory molecules and increased IL-12 production. Vaccination with mDC: i) increased CD8+ and CD4 + T-cell numbers, ii) prevented tumor growth with anti-mitotic activity and apoptotic induction, iii) suppressed metastasis by decreasing Snail, Slug, and Twist expressions. This study reveals for the first time that sialic acid removal and loading with CSC antigens induces significant molecular, morphological, and functional changes in DCs and that this new DC identity may be considered for future combined immunotherapy strategies against breast tumors.
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13
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Balneger N, Cornelissen LAM, Wassink M, Moons SJ, Boltje TJ, Bar-Ephraim YE, Das KK, Søndergaard JN, Büll C, Adema GJ. Sialic acid blockade in dendritic cells enhances CD8 + T cell responses by facilitating high-avidity interactions. Cell Mol Life Sci 2022; 79:98. [PMID: 35089436 PMCID: PMC8799591 DOI: 10.1007/s00018-021-04027-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/06/2021] [Accepted: 11/08/2021] [Indexed: 12/11/2022]
Abstract
Sialic acids are negatively charged carbohydrates that cap the glycans of glycoproteins and glycolipids. Sialic acids are involved in various biological processes including cell-cell adhesion and immune recognition. In dendritic cells (DCs), the major antigen-presenting cells of the immune system, sialic acids emerge as important regulators of maturation and interaction with other lymphocytes including T cells. Many aspects of how sialic acids regulate DC functions are not well understood and tools and model systems to address these are limited. Here, we have established cultures of murine bone marrow-derived DCs (BMDCs) that lack sialic acid expression using a sialic acid-blocking mimetic Ac53FaxNeu5Ac. Ac53FaxNeu5Ac treatment potentiated BMDC activation via toll-like receptor (TLR) stimulation without affecting differentiation and viability. Sialic acid blockade further increased the capacity of BMDCs to induce antigen-specific CD8+ T cell proliferation. Transcriptome-wide gene expression analysis revealed that sialic acid mimetic treatment of BMDCs induces differential expression of genes involved in T cell activation, cell-adhesion, and cell-cell interactions. Subsequent cell clustering assays and single cell avidity measurements demonstrated that BMDCs with reduced sialylation form higher avidity interactions with CD8+ T cells. This increased avidity was detectable in the absence of antigens, but was especially pronounced in antigen-dependent interactions. Together, our data show that sialic acid blockade in BMDCs ameliorates maturation and enhances both cognate T cell receptor-MHC-dependent and independent T cell interactions that allow for more robust CD8+ T cell responses.
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Affiliation(s)
- N Balneger
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands
| | - L A M Cornelissen
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands
| | - M Wassink
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands
| | - S J Moons
- Cluster for Molecular Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - T J Boltje
- Cluster for Molecular Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Y E Bar-Ephraim
- LUMICKS, Pilotenstraat 41, 1059 CH, Amsterdam, The Netherlands
| | - K K Das
- LUMICKS, Pilotenstraat 41, 1059 CH, Amsterdam, The Netherlands
| | - J N Søndergaard
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
| | - C Büll
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands
- Hubrecht Institute, Uppsalalaan 8, 3584 CT, Utrecht, The Netherlands
| | - G J Adema
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands.
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14
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Morales-Lange B, Agboola JO, Hansen JØ, Lagos L, Øyås O, Mercado L, Mydland LT, Øverland M. The Spleen as a Target to Characterize Immunomodulatory Effects of Down-Stream Processed Cyberlindnera jadinii Yeasts in Atlantic Salmon Exposed to a Dietary Soybean Meal Challenge. Front Immunol 2021; 12:708747. [PMID: 34489959 PMCID: PMC8417602 DOI: 10.3389/fimmu.2021.708747] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 08/03/2021] [Indexed: 12/12/2022] Open
Abstract
Aquaculture feeds have changed dramatically from being largely based on fishmeal (FM) towards increased use of plant protein sources, which could impact the fish's immune response. In order to characterize immunomodulatory properties of novel functional ingredients, this study used four diets, one based on FM, a challenging diet with 40% soybean meal (SBM), and two diets containing 40% SBM with 5% of Cyberlindnera jadinii yeast exposed to different down-stream processing conditions: heat-inactivated (ICJ) or autolysation (ACJ). The immunomodulatory effects of the diets were analyzed in the spleen of Atlantic salmon after 37 days of feeding, using a transcriptomic evaluation by RNA sequencing (RNA-seq) and the detection of specific immunological markers at the protein level through indirect Enzyme-linked Immunosorbent Assay (indirect ELISA). The results showed that SBM (compared to FM) induced a down-regulation of pathways related to ion binding and transport, along with an increase at the protein level of pro-inflammatory cytokines such as tumor necrosis factor alpha (TNFα) and interferon gamma (IFNγ). On the other hand, while ICJ (compared to FM-group) maintain the inflammatory response associated with SBM, with higher levels of TNFα and IFNγ, and with an upregulation of creatine kinase activity and phosphagen metabolic process, the inclusion of ACJ was able to modulate the response of Atlantic salmon compared to fish fed the SBM-diet by the activation of biological pathways related to endocytosis, Pattern recognition receptor (PPRs)-signal transduction and transporter activity. In addition, ACJ was also able to control the pro-inflammatory profile of SBM, increasing Interleukin 10 (IL-10) levels and decreasing TNFα production, triggering an immune response similar to that of fish fed an FM-based diet. Finally, we suggest that the spleen is a good candidate to characterize the immunomodulatory effects of functional ingredients in Atlantic salmon. Moreover, the inclusion of ACJ in fish diets, with the ability to control inflammatory processes, could be considered in the formulation of sustainable salmon feed.
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Affiliation(s)
- Byron Morales-Lange
- Department of Animal and Aquaculture Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
| | - Jeleel Opeyemi Agboola
- Department of Animal and Aquaculture Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
| | - Jon Øvrum Hansen
- Department of Animal and Aquaculture Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
| | - Leidy Lagos
- Department of Animal and Aquaculture Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
| | - Ove Øyås
- Department of Animal and Aquaculture Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Luis Mercado
- Grupo de Marcadores Inmunológicos en Organismos Acuáticos, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Liv Torunn Mydland
- Department of Animal and Aquaculture Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
| | - Margareth Øverland
- Department of Animal and Aquaculture Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
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15
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Wang F, Ullah A, Fan X, Xu Z, Zong R, Wang X, Chen G. Delivery of nanoparticle antigens to antigen-presenting cells: from extracellular specific targeting to intracellular responsive presentation. J Control Release 2021; 333:107-128. [PMID: 33774119 DOI: 10.1016/j.jconrel.2021.03.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 02/05/2023]
Abstract
An appropriate delivery system can improve the immune effects of antigens against various infections or tumors. Antigen-presenting cells (APCs) are specialized to capture and process antigens in vivo, which link the innate and adaptive immune responses. Functionalization of vaccine delivery systems with targeting moieties to APCs is a promising strategy for provoking potent immune responses. Additionally, the internalization and intracellular distribution of antigens are closely related to the initiation of downstream immune responses. With a deeper understanding of the intracellular microenvironment and the mechanisms of antigen presentation, vehicles designed to respond to endogenous and external stimuli can modulate antigen processing and presentation pathways, which are critical to the types of immune response. Here, an overview of extracellular targeting delivery of antigens to APCs and intracellular stimulus-responsiveness strategies is provided, which might be helpful for the rational design of vaccine delivery systems.
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Affiliation(s)
- Fei Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Aftab Ullah
- Shantou University Medical College, Shantou 515041, China
| | - Xuelian Fan
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Zhou Xu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Rongling Zong
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Xuewen Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Gang Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China.
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16
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Bordron A, Morel M, Bagacean C, Dueymes M, Pochard P, Harduin-Lepers A, Jamin C, Pers JO. Hyposialylation Must Be Considered to Develop Future Therapies in Autoimmune Diseases. Int J Mol Sci 2021; 22:ijms22073402. [PMID: 33810246 PMCID: PMC8036829 DOI: 10.3390/ijms22073402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/16/2021] [Accepted: 03/22/2021] [Indexed: 12/14/2022] Open
Abstract
Autoimmune disease development depends on multiple factors, including genetic and environmental. Abnormalities such as sialylation levels and/or quality have been recently highlighted. The adjunction of sialic acid at the terminal end of glycoproteins and glycolipids is essential for distinguishing between self and non-self-antigens and the control of pro- or anti-inflammatory immune reactions. In autoimmunity, hyposialylation is responsible for chronic inflammation, the anarchic activation of the immune system and organ lesions. A detailed characterization of this mechanism is a key element for improving the understanding of these diseases and the development of innovative therapies. This review focuses on the impact of sialylation in autoimmunity in order to determine future treatments based on the regulation of hyposialylation.
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Affiliation(s)
- Anne Bordron
- Univ Brest, Inserm, LBAI, UMR1227 Brest, France; (M.M.); (C.B.); (M.D.); (C.J.); (J.-O.P.)
- Correspondence:
| | - Marie Morel
- Univ Brest, Inserm, LBAI, UMR1227 Brest, France; (M.M.); (C.B.); (M.D.); (C.J.); (J.-O.P.)
| | - Cristina Bagacean
- Univ Brest, Inserm, LBAI, UMR1227 Brest, France; (M.M.); (C.B.); (M.D.); (C.J.); (J.-O.P.)
- CHU de Brest, Laboratory of Immunolgy, 29200 Brest, France;
| | - Maryvonne Dueymes
- Univ Brest, Inserm, LBAI, UMR1227 Brest, France; (M.M.); (C.B.); (M.D.); (C.J.); (J.-O.P.)
- CHU de Brest, Laboratory of Immunolgy, 29200 Brest, France;
| | - Pierre Pochard
- CHU de Brest, Laboratory of Immunolgy, 29200 Brest, France;
| | - Anne Harduin-Lepers
- Univ. Lille, CNRS UMR 8576—UGSF—Unité de Glycobiologie Structurale et Fonctionnelle, 59000 Lille, France;
| | - Christophe Jamin
- Univ Brest, Inserm, LBAI, UMR1227 Brest, France; (M.M.); (C.B.); (M.D.); (C.J.); (J.-O.P.)
- CHU de Brest, Laboratory of Immunolgy, 29200 Brest, France;
| | - Jacques-Olivier Pers
- Univ Brest, Inserm, LBAI, UMR1227 Brest, France; (M.M.); (C.B.); (M.D.); (C.J.); (J.-O.P.)
- CHU de Brest, Laboratory of Immunolgy, 29200 Brest, France;
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17
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Castenmiller C, Keumatio-Doungtsop BC, van Ree R, de Jong EC, van Kooyk Y. Tolerogenic Immunotherapy: Targeting DC Surface Receptors to Induce Antigen-Specific Tolerance. Front Immunol 2021; 12:643240. [PMID: 33679806 PMCID: PMC7933040 DOI: 10.3389/fimmu.2021.643240] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/02/2021] [Indexed: 12/11/2022] Open
Abstract
Dendritic cells (DCs) are well-established as major players in the regulation of immune responses. They either induce inflammatory or tolerogenic responses, depending on the DC-subtype and stimuli they receive from the local environment. This dual capacity of DCs has raised therapeutic interest for their use to modify immune-activation via the generation of tolerogenic DCs (tolDCs). Several compounds such as vitamin D3, retinoic acid, dexamethasone, or IL-10 and TGF-β have shown potency in the induction of tolDCs. However, an increasing interest exists in defining tolerance inducing receptors on DCs for new targeting strategies aimed to develop tolerance inducing immunotherapies, on which we focus particular in this review. Ligation of specific cell surface molecules on DCs can result in antigen presentation to T cells in the presence of inhibitory costimulatory molecules and tolerogenic cytokines, giving rise to regulatory T cells. The combination of factors such as antigen structure and conformation, delivery method, and receptor specificity is of paramount importance. During the last decades, research provided many tools that can specifically target various receptors on DCs to induce a tolerogenic phenotype. Based on advances in the knowledge of pathogen recognition receptor expression profiles in human DC subsets, the most promising cell surface receptors that are currently being explored as possible targets for the induction of tolerance in DCs will be discussed. We also review the different strategies that are being tested to target DC receptors such as antigen-carbohydrate conjugates, antibody-antigen fusion proteins and antigen-adjuvant conjugates.
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Affiliation(s)
- Charlotte Castenmiller
- Department of Experimental Immunology, Amsterdam University Medical Centers, Amsterdam Institute for Infection & Immunity, University of Amsterdam, Amsterdam, Netherlands
| | - Brigitte-Carole Keumatio-Doungtsop
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Centers, Amsterdam Institute for Infection & Immunity, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Ronald van Ree
- Department of Experimental Immunology, Amsterdam University Medical Centers, Amsterdam Institute for Infection & Immunity, University of Amsterdam, Amsterdam, Netherlands.,Department of Otorhinolaryngology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Esther C de Jong
- Department of Experimental Immunology, Amsterdam University Medical Centers, Amsterdam Institute for Infection & Immunity, University of Amsterdam, Amsterdam, Netherlands
| | - Yvette van Kooyk
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Centers, Amsterdam Institute for Infection & Immunity, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
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18
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Rosenstock P, Kaufmann T. Sialic Acids and Their Influence on Human NK Cell Function. Cells 2021; 10:263. [PMID: 33572710 PMCID: PMC7911748 DOI: 10.3390/cells10020263] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/26/2021] [Accepted: 01/26/2021] [Indexed: 12/14/2022] Open
Abstract
Sialic acids are sugars with a nine-carbon backbone, present on the surface of all cells in humans, including immune cells and their target cells, with various functions. Natural Killer (NK) cells are cells of the innate immune system, capable of killing virus-infected and tumor cells. Sialic acids can influence the interaction of NK cells with potential targets in several ways. Different NK cell receptors can bind sialic acids, leading to NK cell inhibition or activation. Moreover, NK cells have sialic acids on their surface, which can regulate receptor abundance and activity. This review is focused on how sialic acids on NK cells and their target cells are involved in NK cell function.
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Affiliation(s)
- Philip Rosenstock
- Institute for Physiological Chemistry, Martin-Luther-University Halle-Wittenberg, Hollystr. 1, D-06114 Halle/Saale, Germany;
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19
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Fu CW, Tsai HE, Chen WS, Chang TT, Chen CL, Hsiao PW, Li WS. Sialyltransferase Inhibitors Suppress Breast Cancer Metastasis. J Med Chem 2020; 64:527-542. [PMID: 33371679 DOI: 10.1021/acs.jmedchem.0c01477] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We report the synthesis and evaluation of a series of cell-permeable and N- versus O-selective sialyltransferase inhibitors. Inhibitor design entailed the functionalization of lithocholic acid at C(3) and at the cyclopentane ring side chain. Among the series, FCW34 and FCW66 were shown to inhibit MDA-MB-231 cell migration as effectively as ST3GALIII-gene knockdown did. FCW34 was shown to inhibit tumor growth, reduce angiogenesis, and delay cancer cell metastasis in animal models. Furthermore, FCW34 inhibited vessel development and suppressed angiogenic activity in transgenic zebrafish models. Our results provide clear evidence that FCW34-induced sialyltransferase inhibition reduces cancer cell metastasis by decreasing N-glycan sialylation, thus altering the regulation of talin/integrin/FAK/paxillin and integrin/NFκB signaling pathways.
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Affiliation(s)
- Chih-Wei Fu
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan.,Department of Chemistry, National Central University, Taoyuan City 320, Taiwan
| | - Han-En Tsai
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Wei-Sheng Chen
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan.,Department of Chemistry, National Central University, Taoyuan City 320, Taiwan
| | - Tzu-Ting Chang
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Chia-Ling Chen
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Pei-Wen Hsiao
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Wen-Shan Li
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan.,Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.,Ph.D Program in Biotechnology Research and Development, Taipei Medical University, Taipei 110, Taiwan.,Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.,Department of Chemistry, College of Science, Tamkang University, New Taipei City 251, Taiwan
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20
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Gray MA, Stanczak MA, Mantuano NR, Xiao H, Pijnenborg JFA, Malaker SA, Miller CL, Weidenbacher PA, Tanzo JT, Ahn G, Woods EC, Läubli H, Bertozzi CR. Targeted glycan degradation potentiates the anticancer immune response in vivo. Nat Chem Biol 2020; 16:1376-1384. [PMID: 32807964 PMCID: PMC7727925 DOI: 10.1038/s41589-020-0622-x] [Citation(s) in RCA: 179] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/08/2020] [Indexed: 12/24/2022]
Abstract
Currently approved immune checkpoint inhibitor therapies targeting the PD-1 and CTLA-4 receptor pathways are powerful treatment options for certain cancers; however, most patients across cancer types still fail to respond. Consequently, there is interest in discovering and blocking alternative pathways that mediate immune suppression. One such mechanism is an upregulation of sialoglycans in malignancy, which has been recently shown to inhibit immune cell activation through multiple mechanisms and therefore represents a targetable glycoimmune checkpoint. Since these glycans are not canonically druggable, we designed an αHER2 antibody-sialidase conjugate that potently and selectively strips diverse sialoglycans from breast cancer cells. In syngeneic breast cancer models, desialylation enhanced immune cell infiltration and activation and prolonged the survival of mice, an effect that was dependent on expression of the Siglec-E checkpoint receptor found on tumor-infiltrating myeloid cells. Thus, antibody-sialidase conjugates represent a promising modality for glycoimmune checkpoint therapy.
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MESH Headings
- Allografts
- Animals
- Antibodies, Monoclonal/chemistry
- Antibodies, Monoclonal/metabolism
- B7-H1 Antigen/genetics
- B7-H1 Antigen/immunology
- Cell Line, Tumor
- Humans
- Hydrolysis
- Immunoconjugates/chemistry
- Immunoconjugates/metabolism
- Immunoconjugates/pharmacology
- Immunotherapy/methods
- Killer Cells, Natural/cytology
- Killer Cells, Natural/immunology
- Melanoma, Experimental/genetics
- Melanoma, Experimental/immunology
- Melanoma, Experimental/mortality
- Melanoma, Experimental/therapy
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Models, Molecular
- Molecular Targeted Therapy
- Neuraminidase/chemistry
- Neuraminidase/genetics
- Neuraminidase/immunology
- Polysaccharides/chemistry
- Polysaccharides/immunology
- Programmed Cell Death 1 Receptor/genetics
- Programmed Cell Death 1 Receptor/immunology
- Protein Binding
- Protein Interaction Domains and Motifs
- Protein Structure, Secondary
- Receptor, ErbB-2/chemistry
- Receptor, ErbB-2/genetics
- Receptor, ErbB-2/immunology
- Sialic Acid Binding Immunoglobulin-like Lectins/chemistry
- Sialic Acid Binding Immunoglobulin-like Lectins/genetics
- Sialic Acid Binding Immunoglobulin-like Lectins/immunology
- Survival Analysis
- T-Lymphocytes/cytology
- T-Lymphocytes/immunology
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Affiliation(s)
- Melissa A Gray
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Michal A Stanczak
- Cancer Immunology Laboratory, Department of Biomedicine, University Hospital, Basel, Switzerland
- Division of Oncology, Department of Internal Medicine, University Hospital, Basel, Switzerland
| | - Natália R Mantuano
- Cancer Immunology Laboratory, Department of Biomedicine, University Hospital, Basel, Switzerland
- Division of Oncology, Department of Internal Medicine, University Hospital, Basel, Switzerland
| | - Han Xiao
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | | | - Stacy A Malaker
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Caitlyn L Miller
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | | | - Julia T Tanzo
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Green Ahn
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Elliot C Woods
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Heinz Läubli
- Cancer Immunology Laboratory, Department of Biomedicine, University Hospital, Basel, Switzerland
- Division of Oncology, Department of Internal Medicine, University Hospital, Basel, Switzerland
| | - Carolyn R Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA, USA.
- Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA.
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21
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The bone marrow microenvironment of pre-B acute lymphoblastic leukemia at single-cell resolution. Sci Rep 2020; 10:19173. [PMID: 33154494 PMCID: PMC7645756 DOI: 10.1038/s41598-020-76157-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/23/2020] [Indexed: 01/06/2023] Open
Abstract
The bone marrow microenvironment (BMM) plays a key role in leukemia progression, but its molecular complexity in pre-B cell acute lymphoblastic leukemia (B-ALL), the most common cancer in children, remains poorly understood. To gain further insight, we used single-cell RNA sequencing to characterize the kinetics of the murine BMM during B-ALL progression. Normal pro- and pre-B cells were found to be the most affected at the earliest stages of disease and this was associated with changes in expression of genes regulated by the AP1-transcription factor complex and regulatory factors NELFE, MYC and BCL11A. Granulocyte–macrophage progenitors show reduced expression of the tumor suppressor long non-coding RNA Neat1 and disruptions in the rate of transcription. Intercellular communication networks revealed monocyte-dendritic precursors to be consistently active during B-ALL progression, with enriched processes including cytokine-mediated signaling pathway, neutrophil-mediated immunity and regulation of cell migration and proliferation. In addition, we confirmed that the hematopoietic stem and progenitor cell compartment was perturbed during leukemogenesis. These findings extend our understanding of the complexity of changes and molecular interactions among the normal cells of the BMM during B-ALL progression.
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Sangsuwan R, Thuamsang B, Pacifici N, Allen R, Han H, Miakicheva S, Lewis JS. Lactate Exposure Promotes Immunosuppressive Phenotypes in Innate Immune Cells. Cell Mol Bioeng 2020; 13:541-557. [PMID: 33184582 DOI: 10.1007/s12195-020-00652-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 09/08/2020] [Indexed: 12/12/2022] Open
Abstract
Introduction Lactate secreted by tumors is not just a byproduct, but rather an active modulator of immune cells. There are few studies aimed at investigating the true effect of lactate, which is normally confounded by pH. Such a knowledge gap needs to be addressed. Herein, we studied the immunomodulatory effects of lactate on dendritic cells (DCs) and macrophages (MΦs). Methods Bone marrow-derived innate immune cells were treated with 50 mM sodium lactate (sLA) and incubated for 2 days or 5 days at 37 °C. Controls included media, lipopolysaccharide (LPS), MCT inhibitors (α-cyano-4-hydroxycinnamic acid and AR-C15585). Flow cytometric analysis of immune phenotypes were performed by incubating cells with specific marker antibodies and viability dye. Differential expression analyses were conducted on R using limma-voom and adjusted p-values were generated using the Bejamini-Hochberg Procedure. Results Lactate exposure attenuated DC maturation through the downregulation of CD80 and MHCII expression under LPS stimulation. For MΦs, lactate exposure resulted in M2 polarization as evidenced by the reduction of M1 markers (CD38 and iNOS), and the increase in expression of CD163 and Arg1. We also revealed the role of monocarboxylate transporters (MCTs) in mediating lactate effect in MΦs. MCT4 inhibition significantly boosted lactate M2 polarization, while blocking of MCT1/2 failed to reverse the immunosuppressive effect of lactate, correlating with the result of gene expression that lactate increased MCT4 expression, but downregulated the expression of MCT1/2. Conclusions This research provides valuable insight on the influence of metabolic products on tumor immunity and will help to identify novel metabolic targets for augmenting cancer immunotherapies.
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Affiliation(s)
- Rapeepat Sangsuwan
- Department of Biomedical Engineering, University of California, Davis, 1 Shields Avenue, Davis, CA 95616 USA
| | - Bhasirie Thuamsang
- Department of Biomedical Engineering, University of California, Davis, 1 Shields Avenue, Davis, CA 95616 USA
| | - Noah Pacifici
- Department of Biomedical Engineering, University of California, Davis, 1 Shields Avenue, Davis, CA 95616 USA
| | - Riley Allen
- Department of Biomedical Engineering, University of California, Davis, 1 Shields Avenue, Davis, CA 95616 USA
| | - Hyunsoo Han
- Department of Biomedical Engineering, University of California, Davis, 1 Shields Avenue, Davis, CA 95616 USA
| | - Svetlana Miakicheva
- Department of Biomedical Engineering, University of California, Davis, 1 Shields Avenue, Davis, CA 95616 USA
| | - Jamal S Lewis
- Department of Biomedical Engineering, University of California, Davis, 1 Shields Avenue, Davis, CA 95616 USA
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Rodríguez-Argente F, Alba-Domínguez M, Ortiz-Muñoz E, Ortega-González Á. Oromucosal immunomodulation as clinical spectrum mitigating factor in SARS-CoV-2 infection. Scand J Immunol 2020; 93:e12972. [PMID: 32892403 PMCID: PMC7816245 DOI: 10.1111/sji.12972] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/11/2020] [Accepted: 08/30/2020] [Indexed: 12/14/2022]
Abstract
Mounting evidence supports the importance of mucosal immunity in the immune response to SARS‐CoV‐2. Active virus replication in the upper respiratory tract for the first days of infection opens a new perspective in immunological strategies to counteract viral pathogenicity. An effective mucosal innate immune response to SARS‐CoV‐2 paves the way to an also effective adaptive immune response. A strong local immune response seems to be crucial in the initial contention of the virus by the organism and for triggering the production of the necessary neutralizing antibodies in sera and mucosal secretions. However, if the innate immune response fails to overcome the immune evasion mechanisms displayed by the virus, the infection will progress and the lack of an adaptive immune response will take the patient to an overreactive but ineffective innate immune response. To revert this scenario, an immune strategy based on enhancement of immunity in the first days of infection would be theoretically well come. But serious concerns about cytokine response syndrome prevent us to do so. Fortunately, it is possible to enhance immune system response without causing inflammation through immunomodulation. Immunomodulation of local immune response at the oropharyngeal mucosa could hypothetically activate our mucosal immunity, which could send an early an effective warning to the adaptive immune system. There are studies on immunotherapeutic management of upper respiratory tract infections in children that can place us in the right path to design an immune strategy able to mitigate COVID‐19 symptoms and reduce clinical progression.
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Affiliation(s)
- Francisco Rodríguez-Argente
- Department of Pediatrics, Emergency Department, Department of Pneumology, Hospital Universitario Nuestra Señora del Prado, Talavera de la Reina, Spain
| | | | - Elena Ortiz-Muñoz
- Emergency Department, Hospital Universitario Nuestra Señora del Prado, Talavera de la Reina, Spain
| | - Ángel Ortega-González
- Pneumology Department, Hospital Universitario Nuestra Señora del Prado, Talavera de la Reina, Spain
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Huang W, Sun L, Wang B, Ma Y, Yao D, Han W, Wang L. Ginsenosides, potent inhibitors of sialyltransferase. ACTA ACUST UNITED AC 2020; 75:41-49. [PMID: 32031984 DOI: 10.1515/znc-2019-0150] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 01/15/2020] [Indexed: 01/12/2023]
Abstract
The overexpression of sialic acids and sialyltransferases (STs) during malignant transformation and progression could result in the aberrant sialylation of cancer cells. Therefore, interfering the sialic acid synthesis might be an effective pathway in cancer therapy. In this study, we assessed that the antitumor inhibitors of 20(S)-ginsenosides Rg3, 20(R)-ginsenosides Rg3, 20(S)-ginsenosides Rh2, and 20(R)-ginsenosides Rh2 could block the sialoglycans in liver cancer cells HepG2. The results showed that these four compounds could inhibit the expressions of the total and free sialic acid at different levels in HepG2, respectively; also, it showed dose dependence. In addition, the results of the enzyme-linked immunosorbent assay showed that the above four compounds can inhibit the expression of STs significantly. We also found that these compounds could mediate the block of sialylation of α2,3- and α2,6-linked sialic acids in HepG2 cells by flow cytometry. Meanwhile, the results of the molecular docking investigation showed that these compounds showed strong interaction with ST6GalI and ST3GalI. These results verified that the ginsenosides have a powerful inhibiting aberrant sialylation, and it laid a theoretical foundation for further research on the investigation of ginsenosides as the target inhibitors on STs.
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Affiliation(s)
- Wenxin Huang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Baojian Road 157, Nangang District, Harbin 150081, P.R. China
| | - Liwen Sun
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Baojian Road 157, Nangang District, Harbin 150081, P.R. China
| | - Baihui Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Baojian Road 157, Nangang District, Harbin 150081, P.R. China
| | - Yan Ma
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Baojian Road 157, Nangang District, Harbin 150081, P.R. China
| | - Dahong Yao
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Baojian Road 157, Nangang District, Harbin 150081, P.R. China
| | - Weina Han
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Baojian Road 157, Nangang District, Harbin 150081, P.R. China
| | - Libo Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Baojian Road 157, Nangang District, Harbin 150081, P.R. China
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25
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Poderoso T, De la Riva PM, Álvarez B, Nieto-Pelegrín E, Ezquerra A, Domínguez J, Revilla C. Expression of Siglec-1, -3, -5 and -10 in porcine cDC1 and cDC2 subsets from blood, spleen and lymph nodes and functional capabilities of these cells. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 109:103692. [PMID: 32234314 DOI: 10.1016/j.dci.2020.103692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 03/12/2020] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
Dendritic cells are professional antigen-presenting cells that play a critical role in the development of immune responses. DCs express a variety of Siglecs on their surface, which play a regulatory role modulating their activation through interaction with sialylated structures expressed by cells or pathogens. Here, we characterized the phenotype of porcine conventional dendritic cells subsets from blood, spleen and lymph nodes, emphasizing the analysis of the expression of Siglecs. Siglec-1 was detected in type 1 cDC and, at lower levels, in type 2 cDC in the spleen, being low to negative in blood and lymph node cDC. Siglec-3 and Siglec-5 were expressed in cDC1 at lower levels than in cDC2. Porcine cDCs did not express Siglec-10. cDC2 showed a higher capacity to phagocytose microspheres and to process DQ™-OVA than cDC1, but none of these functions was affected by engagement of Siglec-3 and -5 with antibodies on blood cDC.
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Affiliation(s)
- T Poderoso
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - P Martínez De la Riva
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - B Álvarez
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - E Nieto-Pelegrín
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - A Ezquerra
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - J Domínguez
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - C Revilla
- Dpto. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain.
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26
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D’Addio M, Frey J, Otto VI. The manifold roles of sialic acid for the biological functions of endothelial glycoproteins. Glycobiology 2020; 30:490-499. [PMID: 32039454 PMCID: PMC7372927 DOI: 10.1093/glycob/cwaa008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Vascular endothelia are covered with a dense glycocalix that is heavily sialylated. Sialylation of vascular glycoconjugates is involved in the regulation of cell-cell interactions, be it among endothelial cells at cell junctions or between endothelial and blood-borne cells. It also plays important roles in modulating the binding of soluble ligands and the signaling by vascular receptors. Here, we provide an overview over the sialylation-function relationships of glycoproteins expressed in the blood and lymphatic vasculature. We first describe cellular interactions in which sialic acid contributes in a stereospecific manner to glycan epitopes recognized by glycan-binding proteins. Our major focus is however on the rarely discussed examples of vascular glycoproteins whose biological functions are modulated by sialylation through other mechanisms.
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Affiliation(s)
- Marco D’Addio
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Jasmin Frey
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Vivianne I Otto
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
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27
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van de Wall S, Santegoets KC, van Houtum EJ, Büll C, Adema GJ. Sialoglycans and Siglecs Can Shape the Tumor Immune Microenvironment. Trends Immunol 2020; 41:274-285. [DOI: 10.1016/j.it.2020.02.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 01/30/2020] [Accepted: 02/05/2020] [Indexed: 12/23/2022]
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Abstract
The technological advances in diagnostics and therapy of primary immunodeficiency are progressing at a fast pace. This review examines recent developments in the field of inborn errors of immunity, from their definition to their treatment. We will summarize the challenges posed by the growth of next-generation sequencing in the clinical setting, touch briefly on the expansion of the concept of inborn errors of immunity beyond the classic immune system realm, and finally review current developments in targeted therapies, stem cell transplantation, and gene therapy.
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Affiliation(s)
- Giorgia Bucciol
- Inborn Errors of Immunity, Department of Immunology, Microbiology and Transplantation, KU Leuven, Herestraat 49, Leuven, 3000, Belgium.,Childhood Immunology, Department of Pediatrics, University Hospitals Leuven, ERN-RITA Core Member, Herestraat 49, Leuven, 3000, Belgium
| | - Isabelle Meyts
- Inborn Errors of Immunity, Department of Immunology, Microbiology and Transplantation, KU Leuven, Herestraat 49, Leuven, 3000, Belgium.,Childhood Immunology, Department of Pediatrics, University Hospitals Leuven, ERN-RITA Core Member, Herestraat 49, Leuven, 3000, Belgium
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29
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Tsai MH, Chuang CC, Chen CC, Yen HJ, Cheng KM, Chen XA, Shyu HF, Lee CY, Young JJ, Kau JH. Nanoparticles assembled from fucoidan and trimethylchitosan as anthrax vaccine adjuvant: In vitro and in vivo efficacy in comparison to CpG. Carbohydr Polym 2020; 236:116041. [PMID: 32172855 DOI: 10.1016/j.carbpol.2020.116041] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/15/2019] [Accepted: 02/19/2020] [Indexed: 12/13/2022]
Abstract
Fucoidan/trimethylchitosan nanoparticles (FUC-TMC-NPs) have the potential to improve the immunostimulating efficiency of anthrax vaccine adsorbed (AVA). FUC-TMC-NPs with positive (+) or negative (-) surface charges were prepared via polyelectrolyte complexation, both charged NP types permitted high viability and presented no cytotoxicity on L929, A549 and JAWS II dendritic cells. Flow cytometry measurements indicated lower (+)-FUC-TMC-NPs internalization levels than (-)-FUC-TMC-NPs, yet produced high levels of pro-inflammatory cytokines IFN-γ, IL12p40, and IL-4. Moreover, fluorescence microscope images proved that both charged NP could deliver drugs into the nucleus. In vivo studies on A/J mice showed that (+)-FUC-TMC-NPs carrying AVA triggered an efficient response with a higher IgG anti-PA antibody titer than AVA with CpG oligodeoxynucleotides, and yielded 100 % protection when challenged with the anthracis spores. Furthermore, PA-specific IgG1 and IgG2a analysis confirmed that (+)-FUC-TMC-NPs strongly stimulated humoral immunity. In conclusion, (+)-FUC-TMC-NP is promising anthrax vaccine adjuvant as an alternative to CpG.
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Affiliation(s)
- Meng-Hung Tsai
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei City 11490, Taiwan, ROC; Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Chuan-Chang Chuang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei City 11490, Taiwan, ROC; Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Cheng-Cheung Chen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Hui-Ju Yen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Kuang-Ming Cheng
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Xin-An Chen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Huey-Fen Shyu
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Chia-Ying Lee
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Jenn-Jong Young
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC.
| | - Jyh-Hwa Kau
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei City 11490, Taiwan, ROC; Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC.
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30
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Läubli H, Varki A. Sialic acid-binding immunoglobulin-like lectins (Siglecs) detect self-associated molecular patterns to regulate immune responses. Cell Mol Life Sci 2020; 77:593-605. [PMID: 31485715 PMCID: PMC7942692 DOI: 10.1007/s00018-019-03288-x] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/11/2019] [Accepted: 08/28/2019] [Indexed: 12/12/2022]
Abstract
The mammalian immune system evolved to tightly regulate the elimination of pathogenic microbes and neoplastic transformed cells while tolerating our own healthy cells. Here, we summarize experimental evidence for the role of Siglecs-in particular CD33-related Siglecs-as self-receptors and their sialoglycan ligands in regulating this balance between recognition of self and non-self. Sialoglycans are found in the glycocalyx and extracellular fluids and matrices of all mammalian cells and can be considered as self-associated molecular patterns (SAMPs). We also provide an overview of the known interactions of Siglec receptors and sialoglycan-SAMPs. Manipulation of the Siglec-SAMP axis offers new therapeutic opportunities for the treatment of inflammatory conditions, autoimmune diseases and also cancer immunotherapy.
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Affiliation(s)
- Heinz Läubli
- Laboratory for Cancer Immunotherapy, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland.
| | - Ajit Varki
- Department of Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA, 92093-0687, USA.
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA, 92093-0687, USA.
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Irons EE, Lee-Sundlov MM, Zhu Y, Neelamegham S, Hoffmeister KM, Lau JT. B cells suppress medullary granulopoiesis by an extracellular glycosylation-dependent mechanism. eLife 2019; 8:47328. [PMID: 31408003 PMCID: PMC6713473 DOI: 10.7554/elife.47328] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 08/10/2019] [Indexed: 12/18/2022] Open
Abstract
The immune response relies on the integration of cell-intrinsic processes with cell-extrinsic cues. During infection, B cells vacate the marrow during emergency granulopoiesis but return upon restoration of homeostasis. Here we report a novel glycosylation-mediated crosstalk between marrow B cells and hematopoietic progenitors. Human B cells secrete active ST6GAL1 sialyltransferase that remodels progenitor cell surface glycans to suppress granulopoiesis. In mouse models, ST6GAL1 from B cells alters the sialylation profile of bone marrow populations, and mature IgD+ B cells were enriched in sialylated bone marrow niches. In clinical multiple myeloma, ST6GAL1 abundance in the multiple myeloma cells negatively correlated with neutrophil abundance. These observations highlight not only the ability of medullary B cells to influence blood cell production, but also the disruption to normal granulopoiesis by excessive ST6GAL1 in malignancy.
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Affiliation(s)
- Eric E Irons
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Buffalo, United States
| | | | - Yuqi Zhu
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, United States
| | - Sriram Neelamegham
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, United States
| | | | - Joseph Ty Lau
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Buffalo, United States
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Alginate oligosaccharide attenuates α2,6-sialylation modification to inhibit prostate cancer cell growth via the Hippo/YAP pathway. Cell Death Dis 2019; 10:374. [PMID: 31076566 PMCID: PMC6510775 DOI: 10.1038/s41419-019-1560-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 03/23/2019] [Accepted: 03/26/2019] [Indexed: 12/11/2022]
Abstract
Chitosan oligosaccharides have been reported to inhibit various tumors. However, the water-soluble marine plant oligosaccharide alginate oligosaccharide (AOS) has only rarely been reported to have anti-cancer effects. Moreover, the inhibitory effect of AOS on prostate cancer and the underlying molecular mechanism remain unknown. This study shows that AOS inhibited cell growth, which was consistent with the attenuation of α2,6-sialylation modification. Furthermore, AOS inhibited ST6Gal-1 promoter activity and thus affected transcriptional processes. In addition, AOS could activate the Hippo/YAP pathway and block the recruitment of both the coactivator YAP and c-Jun. Furthermore, YAP interacted with the transcription factor c-Jun and regulated the transcriptional activity of the downstream target ST6Gal-1 gene. Consistent with in vitro data, AOS suppressed the tumorigenicity of prostate cancer cells via the Hippo/YAP pathway in vivo. In summary, these data indicate that AOS slows the proliferation of prostate cancer and provides a basis for the healthy function of kelp in traditional cognition.
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Middle East Respiratory Syndrome Coronavirus (MERS-CoV): Infection, Immunological Response, and Vaccine Development. J Immunol Res 2019; 2019:6491738. [PMID: 31089478 PMCID: PMC6476043 DOI: 10.1155/2019/6491738] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/20/2019] [Accepted: 02/20/2019] [Indexed: 02/06/2023] Open
Abstract
Middle East respiratory syndrome coronavirus (MERS-CoV) first emerged in late 2012. Since its emergence, a total of 2279 patients from 27 countries have been infected across the globe according to a World Health Organization (WHO) report (Feb. 12th, 2019). Approximately 806 patients have died. The virus uses its spike proteins as adhesive factors that are proinflammatory for host entry through a specific receptor called dipeptidyl peptidase-4 (DPP4). This receptor is considered a key factor in the signaling and activation of the acquired and innate immune responses in infected patients. Using potent antigens in combination with strong adjuvants may effectively trigger the activation of specific MERS-CoV cellular responses as well as the production of neutralizing antibodies. Unfortunately, to date, there is no effective approved treatment or vaccine for MERS-CoV. Thus, there are urgent needs for the development of novel MERS-CoV therapies as well as vaccines to help minimize the spread of the virus from infected patients, thereby mitigating the risk of any potential pandemics. Our main goals are to highlight and describe the current knowledge of both the innate and adaptive immune responses to MERS-CoV and the current state of MERS-CoV vaccine development. We believe this study will increase our understanding of the mechanisms that enhance the MERS-CoV immune response and subsequently contribute to the control of MERS-CoV infections.
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34
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Wei M, Wang PG. Desialylation in physiological and pathological processes: New target for diagnostic and therapeutic development. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2019; 162:25-57. [PMID: 30905454 DOI: 10.1016/bs.pmbts.2018.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Desialylation is a pivotal part of sialic acid metabolism, which initiates the catabolism of glycans by removing the terminal sialic acid residues on glycans, thereby modulating the structure and functions of glycans, glycoproteins, or glycolipids. The functions of sialic acids have been well recognized, whereas the function of desialylation process is underappreciated or largely ignored. However, accumulating evidence demonstrates that desialylation plays an important role in a variety of physiological and pathological processes. This chapter summarizes the current knowledge pertaining to desialylation in a variety of physiological and pathological processes, with a focus on the underlying molecular mechanisms. The potential of targeting desialylation process for diagnostic and therapeutic development is also discussed.
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Affiliation(s)
- Mohui Wei
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
| | - Peng George Wang
- Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, United States
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35
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Kim MK, Kim J. Properties of immature and mature dendritic cells: phenotype, morphology, phagocytosis, and migration. RSC Adv 2019; 9:11230-11238. [PMID: 35520256 PMCID: PMC9063012 DOI: 10.1039/c9ra00818g] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 03/29/2019] [Indexed: 01/30/2023] Open
Abstract
Dendritic cells (DCs) are antigen-presenting cells that play an important role in connecting the innate and adaptive immunity of the immune system. To mediate innate and adaptive immunity, DCs pass through two stages: immature and mature. The change of phenotype is closely associated with the morphological and functional characteristics of DCs. Understanding these properties of DCs is important in the context of recent efforts on the developments of biomaterials-based cancer vaccine. In this paper, the morphological and phenotypical status of DCs in both stages were compared, and their relationship to the phagocytic and migratory ability of the cells was studied using bone-marrow derived dendritic cells (BMDCs). Immature DCs were of a circular shape and expressed low levels of costimulatory molecules, while mature DCs had longer dendrites and expressed high levels of costimulatory molecules. The phagocytic and migratory ability studied using the polymer bead uptake test and live imaging indicated that immature DCs have a pronounced phagocytic ability compared to mature DCs, while the mature DCs moves faster than immature DCs. These findings could be helpful for understanding the relationship between immature and mature DCs and analyzing initiation of the adaptive immune response by DCs in DC-mediated immunotherapy. Dendritic cells (DCs) are antigen-presenting cells that play an important role in connecting the innate and adaptive immunity of the immune system.![]()
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Affiliation(s)
- Min Kyung Kim
- Department of Health Sciences and Technology
- Samsung Advanced Institute for Health Science & Technology (SAIHST)
- Sungkyunkwan University (SKKU)
- Suwon 16419
- Republic of Korea
| | - Jaeyun Kim
- Department of Health Sciences and Technology
- Samsung Advanced Institute for Health Science & Technology (SAIHST)
- Sungkyunkwan University (SKKU)
- Suwon 16419
- Republic of Korea
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36
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Lou B, De Koker S, Lau CYJ, Hennink WE, Mastrobattista E. mRNA Polyplexes with Post-Conjugated GALA Peptides Efficiently Target, Transfect, and Activate Antigen Presenting Cells. Bioconjug Chem 2018; 30:461-475. [PMID: 30188694 PMCID: PMC6385079 DOI: 10.1021/acs.bioconjchem.8b00524] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
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Vaccines based on
mRNA have emerged as potent systems to elicit
CD8+ T cell responses against various cancers and viral
infectious diseases. The efficient intracellular delivery of mRNA
molecules encoding antigens into the cytosol of antigen-presenting
cells (APCs) is still challenging, requiring cell attachment, active
uptake, and subsequent endosomal escape. Here, we report a facile
approach for the formulation of peptide-functionalized mRNA polyplexes
using copper-free click chemistry to promote presentation of mRNA
antigen by dendritic cells (DCs). After screening different membrane
active peptides, GALA modified mRNA polyplexes (PPx-GALA) with a size
around 350 nm and with a slightly negative surface charge (−7
mV), exhibited the highest EGFP-mRNA transfection in RAW 246.7 macrophages
(∼36%) and D1 dendritic cells (∼50%) as compared to
polyplexes decorated with melittin or LEDE peptides. Interestingly,
we found that PPx-GALA enters DCs through sialic acid mediated endo/phagocytosis,
which was not influenced by DC maturation. The PPx-GALA formulation
exhibited 18-fold higher cellular uptake compared to a lipofectamine
mRNA formulation without inducing cytotoxicity. Live cell imaging
showed that PPx-GALA that were taken up by endocytosis induced calcein
release from endosomes into the cytosol. DCs treated with PPx-GALA
containing mRNA encoding for OVA displayed enhanced T cell responses
and DC maturation. Collectively, these data provide a strong rationale
for further study of this PPx-GALA formulation in vivo as a promising mRNA vaccine platform.
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Affiliation(s)
- Bo Lou
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS) , Utrecht University , 3584CG Utrecht , The Netherlands
| | - Stefaan De Koker
- Laboratory of Molecular Immunology, Department of Biomedical Molecular Biology , Ghent University , 9052 Zwijnaarde , Belgium
| | - Chun Yin Jerry Lau
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS) , Utrecht University , 3584CG Utrecht , The Netherlands
| | - Wim E Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS) , Utrecht University , 3584CG Utrecht , The Netherlands
| | - Enrico Mastrobattista
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS) , Utrecht University , 3584CG Utrecht , The Netherlands
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37
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Yuan Q, Chen X, Han Y, Lei T, Wu Q, Yu X, Wang L, Fan Z, Wang S. Modification of α2,6-sialylation mediates the invasiveness and tumorigenicity of non-small cell lung cancer cells in vitro and in vivo via Notch1/Hes1/MMPs pathway. Int J Cancer 2018; 143:2319-2330. [PMID: 29981167 DOI: 10.1002/ijc.31737] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 06/01/2018] [Accepted: 06/13/2018] [Indexed: 12/15/2022]
Abstract
The alterations of sialylation on cell surface N-glycans due to overexpression of different sialyltransferases play a vital role in tumorigenesis and tumor progression. The β-galactoside α2-6-sialyltransferase 1 (ST6Gal-I) has been reported to be highly expressed in several cancers, including breast cancer, hepatocellular cancer and colon carcinoma. However, the roles and underlying mechanisms of ST6Gal-I in non-small cell lung cancer (NSCLC) still need to be elucidated. In this study, we determined that mRNA levels of ST3GAL1, ST6GALNAC3 and ST8SIA6 were remarkably reduced in lung cancer tissues and cells, whereas ST6GAL1 level significantly increased. The mRNA, protein and glycan levels of ST6Gal-I were higher in lung cancer tissues and cells. Moreover, down-regulation of ST6Gal-I decreased protein levels of Jagged1, DLL-1, Notch1, Hes1, Hey1, matrix-metalloproteinases (MMPs) and VEGF, and suppressed proliferation, migration and invasion capabilities of A549 and H1299 cells in vitro. In vivo, ST6Gal-I silencing suppressed tumorigenicity of NSCLC cells in athymic nude mice via the Notch1/Hes1/MMPs pathway. In addition, overexpression of Notch1 rescued the reduced growth and metastasis of A549 and H1299 cells resulted by ST6Gal-I silencing. Modification of α2,6-sialylation positively associates with lung cancer progression, thereby indicating that ST6Gal-I may mediate the invasiveness and tumorigenicity of NSCLC cells via the Notch1/Hes1/MMPs pathway both in vitro and in vivo. Thus, our results provide a novel therapeutic approach for blocking metastasis in lung cancer patients.
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Affiliation(s)
- Qingmin Yuan
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, Liaoning, China
| | - Xixi Chen
- Department of Biological Sciences, School of Life Science and Medicine, Dalian University of Technology, Panjin, Liaoning, China
| | - Yang Han
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, Liaoning, China
| | - Ting Lei
- Department of Thoracic Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qiang Wu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiao Yu
- Department of Pathology, Dalian Medical University, Dalian, Liaoning Province, China
| | - Liping Wang
- Department of Biological Sciences, School of Life Science and Medicine, Dalian University of Technology, Panjin, Liaoning, China
| | - Zhe Fan
- Department of Thoracic Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Shujing Wang
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, Liaoning, China
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38
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Videira PAQ, Castro-Caldas M. Linking Glycation and Glycosylation With Inflammation and Mitochondrial Dysfunction in Parkinson's Disease. Front Neurosci 2018; 12:381. [PMID: 29930494 PMCID: PMC5999786 DOI: 10.3389/fnins.2018.00381] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/18/2018] [Indexed: 01/08/2023] Open
Abstract
Parkinson’s disease (PD) is the second most common neurodegenerative disorder, affecting about 6.3 million people worldwide. PD is characterized by the progressive degeneration of dopaminergic neurons in the Substantia nigra pars compacta, resulting into severe motor symptoms. The cellular mechanisms underlying dopaminergic cell death in PD are still not fully understood, but mitochondrial dysfunction, oxidative stress and inflammation are strongly implicated in the pathogenesis of both familial and sporadic PD cases. Aberrant post-translational modifications, namely glycation and glycosylation, together with age-dependent insufficient endogenous scavengers and quality control systems, lead to cellular overload of dysfunctional proteins. Such injuries accumulate with time and may lead to mitochondrial dysfunction and exacerbated inflammatory responses, culminating in neuronal cell death. Here, we will discuss how PD-linked protein mutations, aging, impaired quality control mechanisms and sugar metabolism lead to up-regulated abnormal post-translational modifications in proteins. Abnormal glycation and glycosylation seem to be more common than previously thought in PD and may underlie mitochondria-induced oxidative stress and inflammation in a feed-forward mechanism. Moreover, the stress-induced post-translational modifications that directly affect parkin and/or its substrates, deeply impairing its ability to regulate mitochondrial dynamics or to suppress inflammation will also be discussed. Together, these represent still unexplored deleterious mechanisms implicated in neurodegeneration in PD, which may be used for a more in-depth knowledge of the pathogenic mechanisms, or as biomarkers of the disease.
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Affiliation(s)
- Paula A Q Videira
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal.,CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Margarida Castro-Caldas
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal.,Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
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39
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Evaluation of adenovirus 19a as a novel vector for mucosal vaccination against influenza A viruses. Vaccine 2018; 36:2712-2720. [PMID: 29628150 DOI: 10.1016/j.vaccine.2018.02.075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 02/02/2018] [Accepted: 02/05/2018] [Indexed: 01/19/2023]
Abstract
Since preexisting immunity and enhanced infection rates in a clinical trial of an HIV vaccine have raised some concerns on adenovirus (Ad) serotype 5-based vaccines, we evaluated the subgroup D adenovirus serotype Ad19a for its suitability as novel viral vector vaccine against mucosal infections. In BALB/c mice, we compared the immunogenicity and efficacy of E1/E3-deleted Ad19a vectors encoding the influenza A virus (IAV)-derived antigens hemagglutinin (HA) and nucleoprotein (NP) to the most commonly used Ad5 vectors. The adenoviral vectors were applied intranasally and induced detectable antigen-specific T cell responses in the lung and in the spleen as well as robust antibody responses. A prior DNA immunization significantly improved the immunogenicity of both vectors and resulted in full protection against a lethal infection with a heterologous H3N2 virus. Nevertheless, the Ad5-based vectors were slightly superior in reducing viral replication in the lung which corresponded to higher NP-specific T cell responses measured in the lungs.
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40
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Wei A, Fan B, Zhao Y, Zhang H, Wang L, Yu X, Yuan Q, Yang D, Wang S. ST6Gal-I overexpression facilitates prostate cancer progression via the PI3K/Akt/GSK-3β/β-catenin signaling pathway. Oncotarget 2018; 7:65374-65388. [PMID: 27588482 PMCID: PMC5323162 DOI: 10.18632/oncotarget.11699] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 08/24/2016] [Indexed: 11/25/2022] Open
Abstract
ST6Gal-I sialyltransferase adds α2,6-linked sialic acids to the terminal ends of glycan chains of glycoproteins and glycolipids. ST6Gal-I is reportedly upregulated in many cancers, including hepatocellular carcinoma, ovarian cancer and breast cancer. However, the expression and function of ST6Gal-I in prostate cancer (PCa) and the mechanism underlying this function remain largely unknown. In this study, we observed that ST6Gal-I expression was upregulated in human PCa tissues compared to non-malignant prostate tissues. High ST6Gal-I expression was positively correlated with Gleason scores, seminal vesicle involvement and poor survival in patients with PCa. ST6Gal-I knockdown in aggressive prostate cancer PC-3 and DU145 cells significantly inhibited the proliferation, growth, migration and invasion capabilities of these cells. ST6Gal-I knockdown decreased the levels of several PI3K/Akt/GSK-3β/ β-catenin pathway components, such as p-PI3K, (Ser473)p-Akt, (Ser9)p-GSK-3β and β-catenin. Furthermore, targeting this pathway with a PI3K inhibitor or Akt RNA interference decreased p-Akt, p-GSK-3β and β-catenin expression, resulting in decreased PC-3 and DU145 proliferation, migration and invasion. Taken together, these results indicate that ST6Gal-I plays a critical role in cell proliferation and invasion via the PI3K/Akt/GSK-3β/β-catenin signaling pathway during PCa progression and that it might be a promising target for PCa prognosis determination and therapy.
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Affiliation(s)
- Anwen Wei
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Bo Fan
- Department of Urology, First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning Province, China
| | - Yujie Zhao
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Han Zhang
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Liping Wang
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Xiao Yu
- Department of Pathology, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Qingmin Yuan
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning Province, China
| | - Deyong Yang
- Department of Urology, First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning Province, China
| | - Shujing Wang
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning Province, China
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41
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Marques GS, Silva Z, Videira PA. Antitumor Efficacy of Human Monocyte-Derived Dendritic Cells: Comparing Effects of two Monocyte Isolation Methods. Biol Proced Online 2018; 20:4. [PMID: 29434528 PMCID: PMC5796591 DOI: 10.1186/s12575-018-0069-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 01/17/2018] [Indexed: 02/08/2023] Open
Abstract
Background Dendritic cells (DCs), which can be used as anti-cancer vaccines, are generally obtained in vitro from isolated CD14+ monocytes (MoDCs). This generates high cell numbers and allows instructing DCs to guarantee effective antitumor responses. However, the impact of the monocyte isolation step in the antitumor effectiveness of the generated MoDCs is still unknown. Here, we compared the most used immunomagnetic technologies for monocyte isolation: magnetic activated cell sorting (MACS) from Miltenyi Biotec and EasySep from STEM CELL. Results MACS technology allowed a higher monocyte yield and purity and, by flow cytometry, monocytes displayed higher size and lower granularity. In the resting state, EasySep_MoDCs showed a higher basal expression of HLA-DR, and no significant response to stimulation by LPS and TNF-α. When stimulated with whole tumor cells lysates, both MoDCs expressed similar levels of maturation and co-stimulatory markers. However, when cultured with autologous T cells, MACS_MoDCs induced significantly higher IFN-γ secretion than EasySep_MoDCs, indicating a stronger induction of Th1 cell response profile. Concordantly, T cells induced by MACS_MoDCs also showed a higher release of cytotoxic granules when in contact with tumor cells. Conclusions Overall, both the MACS and the EasySep isolation immunomagnetic technologies provide monocytes that differentiate into viable and functional MoDCs. In our experimental settings, resting EasySep_MoDCs showed a higher basal level of maturation but show less responsivity to stimuli. On the other hand, MACS_MoDCs, when stimulated with tumor antigens, showed better ability to stimulate Th1 responses and to induce T cell cytotoxicity against tumor cells. Thus, monocyte isolation techniques crucially affect MoDCs’ function and, therefore, should be carefully selected to obtain the desired functionality.
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Affiliation(s)
- Graça S Marques
- 1CEDOC, NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Zélia Silva
- 1CEDOC, NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal.,2UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Paula A Videira
- 1CEDOC, NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal.,2UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Lisbon, Portugal.,3CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Lisbon, Portugal
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42
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Silva M, Videira PA, Sackstein R. E-Selectin Ligands in the Human Mononuclear Phagocyte System: Implications for Infection, Inflammation, and Immunotherapy. Front Immunol 2018; 8:1878. [PMID: 29403469 PMCID: PMC5780348 DOI: 10.3389/fimmu.2017.01878] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 12/08/2017] [Indexed: 12/20/2022] Open
Abstract
The mononuclear phagocyte system comprises a network of circulating monocytes and dendritic cells (DCs), and “histiocytes” (tissue-resident macrophages and DCs) that are derived in part from blood-borne monocytes and DCs. The capacity of circulating monocytes and DCs to function as the body’s first-line defense against offending pathogens greatly depends on their ability to egress the bloodstream and infiltrate inflammatory sites. Extravasation involves a sequence of coordinated molecular events and is initiated by E-selectin-mediated deceleration of the circulating leukocytes onto microvascular endothelial cells of the target tissue. E-selectin is inducibly expressed by cytokines (tumor necrosis factor-α and IL-1β) on inflamed endothelium, and binds to sialofucosylated glycan determinants displayed on protein and lipid scaffolds of blood cells. Efficient extravasation of circulating monocytes and DCs to inflamed tissues is crucial in facilitating an effective immune response, but also fuels the immunopathology of several inflammatory disorders. Thus, insights into the structural and functional properties of the E-selectin ligands expressed by different monocyte and DC populations is key to understanding the biology of protective immunity and the pathobiology of several acute and chronic inflammatory diseases. This review will address the role of E-selectin in recruitment of human circulating monocytes and DCs to sites of tissue injury/inflammation, the structural biology of the E-selectin ligands expressed by these cells, and the molecular effectors that shape E-selectin ligand cell-specific display. In addition, therapeutic approaches targeting E-selectin receptor/ligand interactions, which can be used to boost host defense or, conversely, to dampen pathological inflammatory conditions, will also be discussed.
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Affiliation(s)
- Mariana Silva
- Department of Dermatology, Harvard Skin Disease Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.,Program of Excellence in Glycosciences, Harvard Medical School, Boston, MA, United States
| | - Paula A Videira
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Lisboa, Portugal.,Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Robert Sackstein
- Department of Dermatology, Harvard Skin Disease Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.,Program of Excellence in Glycosciences, Harvard Medical School, Boston, MA, United States.,Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
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43
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Kumar S, Saini RV, Mahindroo N. Recent advances in cancer immunology and immunology-based anticancer therapies. Biomed Pharmacother 2017; 96:1491-1500. [PMID: 29198747 DOI: 10.1016/j.biopha.2017.11.126] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 11/12/2017] [Accepted: 11/27/2017] [Indexed: 12/14/2022] Open
Abstract
Cancer immunotherapies offer promise for cure of cancer with specificity and minimal toxicity. Recent developments in cancer immunology have led to the better understanding of role of immune regulatory mechanisms in cancer. There is rapid progress in this field in the last few years. Several clinical studies report the efficacy of immunotherapies for treating cancer. The immunology-based anticancer therapies have shown better safety profiles in clinic as compared to other chemotherapeutic agents, thus increasing interest in this area. This review summarizes recent advances in cancer immunology and discusses tumor microenvironment and immunology-based anticancer therapies, including vaccines and therapies targeting immune checkpoints.
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Affiliation(s)
- Sunil Kumar
- School of Pharmaceutical Sciences, Shoolini University, Post Box 9, Solan, 173212, Himachal Pradesh, India
| | - Reena Vohra Saini
- School of Biotechnology, Shoolini University, Post Box 9, Solan, 173212, Himachal Pradesh, India; Centre of Research on Himalayan Sustainability and Development, Shoolini University, Post Box 9, Solan, 173212, Himachal Pradesh, India
| | - Neeraj Mahindroo
- School of Pharmaceutical Sciences, Shoolini University, Post Box 9, Solan, 173212, Himachal Pradesh, India; Centre of Research on Himalayan Sustainability and Development, Shoolini University, Post Box 9, Solan, 173212, Himachal Pradesh, India.
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44
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Lynch K, Treacy O, Gerlach JQ, Annuk H, Lohan P, Cabral J, Joshi L, Ryan AE, Ritter T. Regulating Immunogenicity and Tolerogenicity of Bone Marrow-Derived Dendritic Cells through Modulation of Cell Surface Glycosylation by Dexamethasone Treatment. Front Immunol 2017; 8:1427. [PMID: 29163502 PMCID: PMC5670353 DOI: 10.3389/fimmu.2017.01427] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 10/13/2017] [Indexed: 12/15/2022] Open
Abstract
Dendritic cellular therapies and dendritic cell vaccines show promise for the treatment of autoimmune diseases, the prolongation of graft survival in transplantation, and in educating the immune system to fight cancers. Cell surface glycosylation plays a crucial role in the cell–cell interaction, uptake of antigens, migration, and homing of DCs. Glycosylation is known to change with environment and the functional state of DCs. Tolerogenic DCs (tDCs) are commonly generated using corticosteroids including dexamethasone, however, to date, little is known on how corticosteroid treatment alters glycosylation and what functional consequences this may have. Here, we present a comprehensive profile of rat bone marrow-derived dendritic cells, examining their cell surface glycosylation profile before and after Dexa treatment as resolved by both lectin microarrays and lectin-coupled flow cytometry. We further examine the functional consequences of altering cell surface glycosylation on immunogenicity and tolerogenicity of DCs. Dexa treatment of rat DCs leads to profoundly reduced expression of markers of immunogenicity (MHC I/II, CD80, CD86) and pro-inflammatory molecules (IL-6, IL-12p40, inducible nitric oxide synthase) indicating a tolerogenic phenotype. Moreover, by comprehensive lectin microarray profiling and flow cytometry analysis, we show that sialic acid (Sia) is significantly upregulated on tDCs after Dexa treatment, and that this may play a vital role in the therapeutic attributes of these cells. Interestingly, removal of Sia by neuraminidase treatment increases the immunogenicity of immature DCs and also leads to increased expression of pro-inflammatory cytokines while tDCs are moderately protected from this increase in immunogenicity. These findings may have important implications in strategies aimed at increasing tolerogenicity where it is advantageous to reduce immune activation over prolonged periods. These findings are also relevant in therapeutic strategies aimed at increasing the immunogenicity of cells, for example, in the context of tumor specific immunotherapies.
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Affiliation(s)
- Kevin Lynch
- School of Medicine, Regenerative Medicine Institute (REMEDI), National University of Ireland Galway, Galway, Ireland
| | - Oliver Treacy
- School of Medicine, Regenerative Medicine Institute (REMEDI), National University of Ireland Galway, Galway, Ireland
| | - Jared Q Gerlach
- School of Medicine, Regenerative Medicine Institute (REMEDI), National University of Ireland Galway, Galway, Ireland.,Glycoscience Group, NCBES National Centre for Biomedical Engineering Science, National University of Ireland Galway, Galway, Ireland
| | - Heidi Annuk
- Glycoscience Group, NCBES National Centre for Biomedical Engineering Science, National University of Ireland Galway, Galway, Ireland
| | - Paul Lohan
- School of Medicine, Regenerative Medicine Institute (REMEDI), National University of Ireland Galway, Galway, Ireland
| | - Joana Cabral
- School of Medicine, Regenerative Medicine Institute (REMEDI), National University of Ireland Galway, Galway, Ireland
| | - Lokesh Joshi
- Glycoscience Group, NCBES National Centre for Biomedical Engineering Science, National University of Ireland Galway, Galway, Ireland
| | - Aideen E Ryan
- School of Medicine, Regenerative Medicine Institute (REMEDI), National University of Ireland Galway, Galway, Ireland.,Discipline of Pharmacology and Therapeutics, School of Medicine, National University of Ireland, Galway, Ireland
| | - Thomas Ritter
- School of Medicine, Regenerative Medicine Institute (REMEDI), National University of Ireland Galway, Galway, Ireland
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45
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Son M, Diamond B, Volpe BT, Aranow CB, Mackay MC, Santiago-Schwarz F. Evidence for C1q-mediated crosslinking of CD33/LAIR-1 inhibitory immunoreceptors and biological control of CD33/LAIR-1 expression. Sci Rep 2017; 7:270. [PMID: 28325905 PMCID: PMC5412647 DOI: 10.1038/s41598-017-00290-w] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 02/17/2017] [Indexed: 02/03/2023] Open
Abstract
C1q collagen-like region (CLR) engaging and activating the LAIR-1 inhibitory immunoreceptor represents a non-complement mechanism for maintaining immune quiescence. Given the binding promiscuity of C1q’s globular region (gC1q), we hypothesized that C1q concurrently associates with distinct inhibitory immunoreceptors to produce C1q-mediated modulatory networking. Like LAIR-1, CD33 inhibitory immunoreceptors are highly expressed on monocytes. Binding CD33 restricts cell activation/differentiation; however, natural ligands for CD33 remain elusive. CD33 has IgC2-like domains potentially recognized by gC1q. Thus, we asked whether C1q binds to CD33 and if C1q mediates CD33/LAIR-1 crosslinking. Our findings demonstrate that C1q and gC1q interact with CD33 to activate its inhibitory motifs, while CLR does not. Whole C1q is required to crosslink CD33 and LAIR-1 and concurrently activate CD33/LAIR-1 inhibitory motifs. While C1q binds CD33C2 domains, decreased C1q-CD33 interactions resulting from sialic acid masking of CD33C2 domains suggests a process for regulating C1q-CD33 activity. Consistent with defective self-tolerance, CD33/LAIR-1 expression is reduced in systemic lupus erythematosus (SLE) myelomonocytes. The anti-inflammatory cytokine M-CSF, but not DC growth factors, sustains CD33/LAIR-1 expression on both healthy and SLE cells suggesting further biological control of C1q-CD33/LAIR-1 processes.
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Affiliation(s)
- Myoungsun Son
- Center for Autoimmune and Musculoskeletal Diseases, The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, 11030, USA
| | - Betty Diamond
- Center for Autoimmune and Musculoskeletal Diseases, The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, 11030, USA
| | - Bruce T Volpe
- Center for Biomedical Science, The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, 11030, USA
| | - Cynthia B Aranow
- Center for Autoimmune and Musculoskeletal Diseases, The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, 11030, USA
| | - Meggan C Mackay
- Center for Autoimmune and Musculoskeletal Diseases, The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, 11030, USA
| | - Frances Santiago-Schwarz
- Center for Autoimmune and Musculoskeletal Diseases, The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, 11030, USA.
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Ferluga J, Kouser L, Murugaiah V, Sim RB, Kishore U. Potential influences of complement factor H in autoimmune inflammatory and thrombotic disorders. Mol Immunol 2017; 84:84-106. [PMID: 28216098 DOI: 10.1016/j.molimm.2017.01.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 01/11/2017] [Accepted: 01/13/2017] [Indexed: 01/01/2023]
Abstract
Complement system homeostasis is important for host self-protection and anti-microbial immune surveillance, and recent research indicates roles in tissue development and remodelling. Complement also appears to have several points of interaction with the blood coagulation system. Deficiency and altered function due to gene mutations and polymorphisms in complement effectors and regulators, including Factor H, have been associated with familial and sporadic autoimmune inflammatory - thrombotic disorders, in which autoantibodies play a part. These include systemic lupus erythematosus, rheumatoid arthritis, atypical haemolytic uremic syndrome, anti-phospholipid syndrome and age-related macular degeneration. Such diseases are generally complex - multigenic and heterogeneous in their symptoms and predisposition/susceptibility. They usually need to be triggered by vascular trauma, drugs or infection and non-complement genetic factors also play a part. Underlying events seem to include decline in peripheral regulatory T cells, dendritic cell, and B cell tolerance, associated with alterations in lymphoid organ microenvironment. Factor H is an abundant protein, synthesised in many cell types, and its reported binding to many different ligands, even if not of high affinity, may influence a large number of molecular interactions, together with the accepted role of Factor H within the complement system. Factor H is involved in mesenchymal stem cell mediated tolerance and also contributes to self-tolerance by augmenting iC3b production and opsonisation of apoptotic cells for their silent dendritic cell engulfment via complement receptor CR3, which mediates anti-inflammatory-tolerogenic effects in the apoptotic cell context. There may be co-operation with other phagocytic receptors, such as complement C1q receptors, and the Tim glycoprotein family, which specifically bind phosphatidylserine expressed on the apoptotic cell surface. Factor H is able to discriminate between self and nonself surfaces for self-protection and anti-microbe defence. Factor H, particularly as an abundant platelet protein, may also modulate blood coagulation, having an anti-thrombotic role. Here, we review a number of interaction pathways in coagulation and in immunity, together with associated diseases, and indicate where Factor H may be expected to exert an influence, based on reports of the diversity of ligands for Factor H.
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Affiliation(s)
- Janez Ferluga
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, UB8 3PH, United Kingdom
| | - Lubna Kouser
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, UB8 3PH, United Kingdom
| | - Valarmathy Murugaiah
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, UB8 3PH, United Kingdom
| | - Robert B Sim
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, United Kingdom
| | - Uday Kishore
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, UB8 3PH, United Kingdom.
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Metabolic sialic acid blockade lowers the activation threshold of moDCs for TLR stimulation. Immunol Cell Biol 2016; 95:408-415. [PMID: 27874015 DOI: 10.1038/icb.2016.105] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 09/27/2016] [Accepted: 10/13/2016] [Indexed: 12/29/2022]
Abstract
Sialic acid sugars cover the surface of dendritic cells (DCs) and have been suggested to impact several aspects of DC biology. Research into the role of sialic acids in DCs, however, is complicated by the limited number of tools available to modulate sialic acid expression. Here we report on a synthetic, fluorinated sialic acid mimetic, Ac53FaxNeu5Ac, which potently blocks sialic acid expression in human monocyte-derived DCs (moDCs). Sialic acid blockade enhanced the responsiveness of moDCs to Toll-like receptor (TLR) stimulation as measured by increased maturation marker expression and cytokine production. Consequently, the T-cell activation capacity of Ac53FaxNeu5Ac-treated moDCs was strongly increased. In addition to sialic acids, moDCs also expressed the sialic acid-binding immunoglobulin-like lectins (Siglecs) -3, -5, -7, -9 and -10, immune inhibitory receptors recognizing these sialic acids. Treatment with Ac53FaxNeu5Ac abrogated putative cis and trans interactions between sialic acids and Siglec-7/-9. Together, these data indicate that sialic acids limit the activation of moDCs via the TLR pathway, potentially by interacting with Siglec-7 or Siglec-9. Metabolic sialic acid blockade with Ac53FaxNeu5Ac could therefore potentially be used to generate more potent DC-based vaccines for induction of robust anti-viral or anti-tumor immune responses.
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Scheenstra MR, De Cuyper IM, Branco-Madeira F, de Bleser P, Kool M, Meinders M, Hoogenboezem M, Mul E, Wolkers MC, Salerno F, Nota B, Saeys Y, Klarenbeek S, van IJcken WFJ, Hammad H, Philipsen S, van den Berg TK, Kuijpers TW, Lambrecht BN, Gutiérrez L. GATA1-Deficient Dendritic Cells Display Impaired CCL21-Dependent Migration toward Lymph Nodes Due to Reduced Levels of Polysialic Acid. THE JOURNAL OF IMMUNOLOGY 2016; 197:4312-4324. [DOI: 10.4049/jimmunol.1600103] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 09/29/2016] [Indexed: 02/05/2023]
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Monticelli M, Ferro T, Jaeken J, Dos Reis Ferreira V, Videira PA. Immunological aspects of congenital disorders of glycosylation (CDG): a review. J Inherit Metab Dis 2016; 39:765-780. [PMID: 27393411 DOI: 10.1007/s10545-016-9954-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/16/2016] [Accepted: 06/06/2016] [Indexed: 02/06/2023]
Abstract
Congenital disorders of glycosylation (CDG) are a rapidly growing family of genetic diseases comprising more than 85 known distinct disorders. They show a great phenotypic variability ranging from multi-organ/system to mono-organ/system involvement with very mild to extremely severe expression. Immunological dysfunction has a significant impact on the phenotype in a minority of CDG. CDG with major immunological involvement are ALG12-CDG, MAGT1-CDG, MOGS-CDG, SLC35C1-CDG and PGM3-CDG. This review discusses the variety of immunological abnormalities reported in human CDG. Understanding the immunological aspects of CDG may contribute to a better management/treatment of these pathologies and possibly of more common diseases, such as inflammatory diseases.
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Affiliation(s)
- Maria Monticelli
- Centro de Estudos de Doenças Crónicas, CEDOC, NOVA Medical School / Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
- Dipartimento di Biologia, Università degli Studi di Napoli "Federico II", Naples, Italy
| | - Tiago Ferro
- Centro de Estudos de Doenças Crónicas, CEDOC, NOVA Medical School / Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Jaak Jaeken
- CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Caparica, Portugal
- Center for Metabolic Disease, KU Leuven, Leuven, Belgium
| | - Vanessa Dos Reis Ferreira
- Portuguese Association for Congenital Disorders of Glycosylation (CDG), Lisbon, Portugal.
- CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Caparica, Portugal.
| | - Paula A Videira
- Centro de Estudos de Doenças Crónicas, CEDOC, NOVA Medical School / Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal.
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal.
- CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Caparica, Portugal.
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Katorcha E, Srivastava S, Klimova N, Baskakov IV. Sialylation of Glycosylphosphatidylinositol (GPI) Anchors of Mammalian Prions Is Regulated in a Host-, Tissue-, and Cell-specific Manner. J Biol Chem 2016; 291:17009-19. [PMID: 27317661 PMCID: PMC5016106 DOI: 10.1074/jbc.m116.732040] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 06/09/2016] [Indexed: 01/08/2023] Open
Abstract
Prions or PrP(Sc) are proteinaceous infectious agents that consist of misfolded, self-replicating states of the prion protein or PrP(C) PrP(C) is posttranslationally modified with N-linked glycans and a sialylated glycosylphosphatidylinositol (GPI) anchor. Conformational conversion of PrP(C) gives rise to glycosylated and GPI-anchored PrP(Sc) The question of the sialylation status of GPIs within PrP(Sc) has been controversial. Previous studies that examined scrapie brains reported that both sialo- and asialo-GPIs were present in PrP(Sc), with the majority being asialo-GPIs. In contrast, recent work that employed cultured cells claimed that only PrP(C) with sialylo-GPIs could be recruited into PrP(Sc), whereas PrP(C) with asialo-GPIs inhibited conversion. To resolve this controversy, we analyzed the sialylation status of GPIs within PrP(Sc) generated in the brain, spleen, or cultured N2a or C2C12 myotube cells. We found that recruiting PrP(C) with both sialo- and asialo-GPIs is a common feature of PrP(Sc) The mixtures of sialo- and asialo-GPIs were observed in PrP(Sc) universally regardless of prion strain as well as host, tissue, or type of cells that produced PrP(Sc) Remarkably, the proportion of sialo- versus asialo-GPIs was found to be controlled by host, tissue, and cell type but not prion strain. In summary, this study found no strain-specific preferences for selecting PrP(C) with sialo- versus asialo-GPIs. Instead, this work suggests that the sialylation status of GPIs within PrP(Sc) is regulated in a cell-, tissue-, or host-specific manner and is likely to be determined by the specifics of GPI biosynthesis.
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Affiliation(s)
- Elizaveta Katorcha
- From the Center for Biomedical Engineering and Technology and the Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Saurabh Srivastava
- From the Center for Biomedical Engineering and Technology and the Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Nina Klimova
- From the Center for Biomedical Engineering and Technology and the Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Ilia V Baskakov
- From the Center for Biomedical Engineering and Technology and the Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, Maryland 21201
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