1
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Schmidt EN, Guo XY, Bui DT, Jung J, Klassen JS, Macauley MS. Dissecting the abilities of murine Siglecs to interact with gangliosides. J Biol Chem 2024; 300:107482. [PMID: 38897567 PMCID: PMC11294694 DOI: 10.1016/j.jbc.2024.107482] [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: 02/20/2024] [Revised: 05/21/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024] Open
Abstract
Siglecs are cell surface receptors whose functions are tied to the binding of their sialoglycan ligands. Recently, we developed an optimized liposome formulation and used it to investigate the binding of human Siglecs (hSiglec) against a panel of gangliosides. Animal models, more specifically murine models, are used to understand human biology; however, species-specific differences can complicate the interpretation of the results. Herein, we used our optimized liposome formulation to dissect the interactions between murine Siglecs (mSiglecs) and gangliosides to assess the appropriateness of mSiglecs as a proxy to better understand the biological roles of hSiglec-ganglioside interactions. Using our optimized liposome formulation, we found that ganglioside binding is generally conserved between mice and humans with mSiglec-1, -E, -F, and -15 binding multiple gangliosides like their human counterparts. However, in contrast to the hSiglecs, we observed little to no binding between the mSiglecs and ganglioside GM1a. Detailed analysis of mSiglec-1 interacting with GM1a and its structural isomer, GM1b, suggests that mSiglec-1 preferentially binds α2-3-linked sialic acids presented from the terminal galactose residue. The ability of mSiglecs to interact or not interact with gangliosides, particularly GM1a, has implications for using mice to study neurodegenerative diseases, infections, and cancer, where interactions between Siglecs and glycolipids have been proposed to modulate these human diseases.
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Affiliation(s)
- Edward N Schmidt
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Xue Yan Guo
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Duong T Bui
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Jaesoo Jung
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - John S Klassen
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Matthew S Macauley
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada; Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada; Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada.
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2
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Domma AJ, Henderson LA, Nurdin JA, Kamil JP. Uncloaking the viral glycocalyx: How do viruses exploit glycoimmune checkpoints? Adv Virus Res 2024; 119:63-110. [PMID: 38897709 PMCID: PMC11192240 DOI: 10.1016/bs.aivir.2024.03.001] [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] [Indexed: 06/21/2024]
Abstract
The surfaces of cells and enveloped viruses alike are coated in carbohydrates that play multifarious roles in infection and immunity. Organisms across all kingdoms of life make use of a diverse set of monosaccharide subunits, glycosidic linkages, and branching patterns to encode information within glycans. Accordingly, sugar-patterning enzymes and glycan binding proteins play integral roles in cell and organismal biology, ranging from glycoprotein quality control within the endoplasmic reticulum to lymphocyte migration, coagulation, inflammation, and tissue homeostasis. Unsurprisingly, genes involved in generating and recognizing oligosaccharide patterns are playgrounds for evolutionary conflicts that abound in cross-species interactions, exemplified by the myriad plant lectins that function as toxins. In vertebrates, glycans bearing acidic nine-carbon sugars called sialic acids are key regulators of immune responses. Various bacterial and fungal pathogens adorn their cells in sialic acids that either mimic their hosts' or are stolen from them. Yet, how viruses commandeer host sugar-patterning enzymes to thwart immune responses remains poorly studied. Here, we review examples of viruses that interact with sialic acid-binding immunoglobulin-like lectins (Siglecs), a family of immune cell receptors that regulate toll-like receptor signaling and govern glycoimmune checkpoints, while highlighting knowledge gaps that merit investigation. Efforts to illuminate how viruses leverage glycan-dependent checkpoints may translate into new clinical treatments that uncloak viral antigens and infected cell surfaces by removing or masking immunosuppressive sialoglycans, or by inhibiting viral gene products that induce their biosynthesis. Such approaches may hold the potential to unleash the immune system to clear long intractable chronic viral infections.
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Affiliation(s)
- Anthony J Domma
- LSU Health Sciences Center at Shreveport, Shreveport, LA, United States
| | | | - Jeffery A Nurdin
- LSU Health Sciences Center at Shreveport, Shreveport, LA, United States
| | - Jeremy P Kamil
- LSU Health Sciences Center at Shreveport, Shreveport, LA, United States.
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3
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Wißfeld J, Abou Assale T, Cuevas-Rios G, Liao H, Neumann H. Therapeutic potential to target sialylation and SIGLECs in neurodegenerative and psychiatric diseases. Front Neurol 2024; 15:1330874. [PMID: 38529039 PMCID: PMC10961342 DOI: 10.3389/fneur.2024.1330874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/21/2024] [Indexed: 03/27/2024] Open
Abstract
Sialic acids, commonly found as the terminal carbohydrate on the glycocalyx of mammalian cells, are pivotal checkpoint inhibitors of the innate immune system, particularly within the central nervous system (CNS). Sialic acid-binding immunoglobulin-like lectins (SIGLECs) expressed on microglia are key players in maintaining microglial homeostasis by recognizing intact sialylation. The finely balanced sialic acid-SIGLEC system ensures the prevention of excessive and detrimental immune responses in the CNS. However, loss of sialylation and SIGLEC receptor dysfunctions contribute to several chronic CNS diseases. Genetic variants of SIGLEC3/CD33, SIGLEC11, and SIGLEC14 have been associated with neurodegenerative diseases such as Alzheimer's disease, while sialyltransferase ST8SIA2 and SIGLEC4/MAG have been linked to psychiatric diseases such as schizophrenia, bipolar disorders, and autism spectrum disorders. Consequently, immune-modulatory functions of polysialic acids and SIGLEC binding antibodies have been exploited experimentally in animal models of Alzheimer's disease and inflammation-induced CNS tissue damage, including retinal damage. While the potential of these therapeutic approaches is evident, only a few therapies to target either sialylation or SIGLEC receptors have been tested in patient clinical trials. Here, we provide an overview of the critical role played by the sialic acid-SIGLEC axis in shaping microglial activation and function within the context of neurodegeneration and synaptopathies and discuss the current landscape of therapies that target sialylation or SIGLECs.
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Affiliation(s)
- Jannis Wißfeld
- Institute of Reconstructive Neurobiology, Medical Faculty and University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Tawfik Abou Assale
- Institute of Reconstructive Neurobiology, Medical Faculty and University Hospital Bonn, University of Bonn, Bonn, Germany
| | - German Cuevas-Rios
- Institute of Reconstructive Neurobiology, Medical Faculty and University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Huan Liao
- Florey Institute of Neuroscience and Mental Health, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Harald Neumann
- Institute of Reconstructive Neurobiology, Medical Faculty and University Hospital Bonn, University of Bonn, Bonn, Germany
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4
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Lee IM, Wu HY, Angata T, Wu SH. Bacterial pseudaminic acid binding to Siglec-10 induces a macrophage interleukin-10 response and suppresses phagocytosis. Chem Commun (Camb) 2024; 60:2930-2933. [PMID: 38372418 DOI: 10.1039/d4cc00077c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Pseudaminic acid (Pse) on pathogenic bacteria exopolysaccharide engages with the sialic acid-binding immunoglobulin-type lectin (Siglec)-10 receptor on macrophages via the critical 7-N-acetyl group. This binding stimulates macrophages to secrete interleukin 10 that suppresses phagocytosis against bacteria, but can be reverted by blocking Pse-Siglec-10 interaction with Pse-binding protein as a promising therapy.
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Affiliation(s)
- I-Ming Lee
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, No. 70 Lien-hai Road, Kaohsiung, 804201, Taiwan
| | - Hsing-Yu Wu
- Institute of Biological Chemistry, Academia Sinica, 128 Academia Road, Section 2, Nankang, 11529, Taipei, Taiwan.
| | - Takashi Angata
- Institute of Biological Chemistry, Academia Sinica, 128 Academia Road, Section 2, Nankang, 11529, Taipei, Taiwan.
| | - Shih-Hsiung Wu
- Institute of Biological Chemistry, Academia Sinica, 128 Academia Road, Section 2, Nankang, 11529, Taipei, Taiwan.
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5
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Wang Y, Cheng P. Arming oncolytic viruses with bispecific T cell engagers: The evolution and current status. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166962. [PMID: 37984801 DOI: 10.1016/j.bbadis.2023.166962] [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: 05/05/2023] [Revised: 11/09/2023] [Accepted: 11/12/2023] [Indexed: 11/22/2023]
Abstract
Oncolytic viruses (OVs) are emerging as therapeutically relevant anticancer agents as contemporary immunotherapy gains traction. Furthermore, OVs are an ideal platform for genetic modification to express therapeutic transgenes. Bispecific T cell engagers (BiTEs) can redirect T cells to tumor cells, resulting in targeted cytotoxicity. BiTEs have demonstrated success in hematological cancers but are rarely used in solid tumors. The drawbacks of BiTEs, including inadequate delivery and on-target-off-tumor activity have limited their efficacy. Combining OVs with BiTEs is a prospective area to investigate. This combined strategy can benefit from the best qualities of both therapies while overcoming the limitations.
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Affiliation(s)
- Yunmeng Wang
- Department of Biotherapy, Cancer Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 17 People's South Road, Chengdu 610041, PR China
| | - Ping Cheng
- Department of Biotherapy, Cancer Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 17 People's South Road, Chengdu 610041, PR China.
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6
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Bouti P, Blans C, Klein BJAM, Shome D, Nadafi R, Van Houdt M, Schornagel K, Verkuijlen PJJH, Roos V, Reijmers RM, Van Bruggen R, Kuijpers TW, Matlung HL. SIGLEC-5/14 Inhibits CD11b/CD18 Integrin Activation and Neutrophil-Mediated Tumor Cell Cytotoxicity. Int J Mol Sci 2023; 24:17141. [PMID: 38138970 PMCID: PMC10742634 DOI: 10.3390/ijms242417141] [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: 10/11/2023] [Revised: 11/29/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
Since the successful introduction of checkpoint inhibitors targeting the adaptive immune system, monoclonal antibodies inhibiting CD47-SIRPα interaction have shown promise in enhancing anti-tumor treatment efficacy. Apart from SIRPα, neutrophils express a broad repertoire of inhibitory receptors, including several members of the sialic acid-binding receptor (SIGLEC) family. Here, we demonstrate that interaction between tumor cell-expressed sialic acids and SIGLEC-5/14 on neutrophils inhibits antibody-dependent cellular cytotoxicity (ADCC). We observed that conjugate formation and trogocytosis, both essential processes for neutrophil ADCC, were limited by the sialic acid-SIGLEC-5/14 interaction. During neutrophil-tumor cell conjugate formation, we found that inhibition of the interaction between tumor-expressed sialic acids and SIGLEC-5/14 on neutrophils increased the CD11b/CD18 high affinity conformation. By dynamic acoustic force measurement, the binding between tumor cells and neutrophils was assessed. The interaction between SIGLEC-5/14 and the sialic acids was shown to inhibit the CD11b/CD18-regulated binding between neutrophils and antibody-opsonized tumor cells. Moreover, the interaction between sialic acids and SIGLEC-5/14-consequently hindered trogocytosis and tumor cell killing. In summary, our results provide evidence that the sialic acid-SIGLEC-5/14 interaction is an additional target for innate checkpoint blockade in the tumor microenvironment.
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Affiliation(s)
- Panagiota Bouti
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | - Colin Blans
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | - Bart J. A. M. Klein
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | - Debarati Shome
- LUMICKS, Paalbergweg 3, 1105 AG Amsterdam, The Netherlands
| | - Reza Nadafi
- LUMICKS, Paalbergweg 3, 1105 AG Amsterdam, The Netherlands
| | - Michel Van Houdt
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | - Karin Schornagel
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | - Paul J. J. H. Verkuijlen
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | - Virginie Roos
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | | | - Robin Van Bruggen
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | - Taco W. Kuijpers
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
- Department of Pediatric Immunology and Infectious Diseases, Emma Children’s Hospital, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Hanke L. Matlung
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
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7
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Tang X, Zhang J, Sui D, Yang Q, Wang T, Xu Z, Li X, Gao X, Yan X, Liu X, Song Y, Deng Y. Simultaneous dendritic cells targeting and effective endosomal escape enhance sialic acid-modified mRNA vaccine efficacy and reduce side effects. J Control Release 2023; 364:529-545. [PMID: 37949317 DOI: 10.1016/j.jconrel.2023.11.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/20/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023]
Abstract
mRNA vaccines are attractive prospects for the development of DC-targeted vaccines; however, no clinical success has been realized because, currently, it is difficult to simultaneously achieve DC targeting and efficient endosomal/lysosomal escape. Herein, we developed a sialic acid (SA)-modified mRNA vaccine that simultaneously achieved both. The SA modification promoted DCs uptake of lipid nanoparticles (LNPs) by 2 times, >90% of SA-modified LNPs rapidly escaped from early endosomes (EEs), avoided entering lysosomes, achieved mRNA simultaneously translated in ribosomes distributed in the cytoplasm and endoplasmic reticulum (ER), significantly improved the transfection efficiency of mRNA LNPs in DCs. Additionally, we applied cleavable PEG-lipids in mRNA vaccines for the first time and found this conducive to cellular uptake and DC targeting. In summary, SA-modified mRNA vaccines targeted DCs efficiently, and showed significantly higher EEs/lysosomal escape efficiency (90% vs 50%), superior tumor treatment effect, and lower side effects than commercially formulated mRNA vaccines.
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Affiliation(s)
- Xueying Tang
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Jiashuo Zhang
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Dezhi Sui
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Qiongfen Yang
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Tianyu Wang
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Zihan Xu
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Xiaoya Li
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Xin Gao
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Xinyang Yan
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Xinrong Liu
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Yanzhi Song
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China.
| | - Yihui Deng
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China.
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8
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Moreira RS, da Silva MM, de Melo Vasconcelos CF, da Silva TD, Cordeiro GG, Mattos-Jr LAR, da Rocha Pitta MG, de Melo Rêgo MJB, Pereira MC. Siglec 15 as a biomarker or a druggable molecule for non-small cell lung cancer. J Cancer Res Clin Oncol 2023; 149:17651-17661. [PMID: 37843557 DOI: 10.1007/s00432-023-05437-z] [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: 08/01/2023] [Accepted: 09/18/2023] [Indexed: 10/17/2023]
Abstract
Lung cancer has been the main cause of cancer mortality worldwide. Furthermore, lung cancer rates of new cases per year evidenced a large incidence of this neoplasm in both men and women. Because there is no biomarker for early detection, it is frequently detected late, at an advanced state. The introduction of multiple lines of tyrosine kinase inhibitors in patients with EGFR, ALK, ROS1, and NTRK mutations has modified the therapy of lung cancer. Immunotherapy advances have resulted in substantial improvements in overall survival and disease-free survival, making immune checkpoint inhibitors (ICIs) a potential option for lung cancer treatment. Current PD-1/PD-L1/CTLA-4 immunotherapies have resulted in important response and survival rates. However, existing medicines only function in around 20% of unselected, advanced NSCLC patients, and primary and acquired resistance remain unsolved obstacles. Therefore, precise predictive indicators must be identified to choose the best patients for ICI treatment. Thus, Sialic acid-binding immunoglobulin-like lectin 15 (Siglec-15) stands out as a potential tumor biomarker, with distinctive expression in normal tissues, in tumor immune involvement, and a high structural similarity to PD-L1. Understanding the tumor immune response and the search for new therapeutic targets leads to the improvement of therapeutic pathways directed at the tumor microenvironment. The present review aims to analyze Siglec-15 potential as a diagnostic, prognostic, and response biomarker in lung cancer, considering its results evidenced in the current literature.
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Affiliation(s)
- Rodrigo Santiago Moreira
- Suely-Galdino Therapeutic Innovation Research Center (NUPIT-SG), Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Marillya Morais da Silva
- Suely-Galdino Therapeutic Innovation Research Center (NUPIT-SG), Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | - Thiago Douberin da Silva
- Suely-Galdino Therapeutic Innovation Research Center (NUPIT-SG), Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | - Luiz Alberto Reis Mattos-Jr
- Department of Clinic Medicine, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235, Recife, PE, Brazil
| | - Maira Galdino da Rocha Pitta
- Suely-Galdino Therapeutic Innovation Research Center (NUPIT-SG), Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | - Michelly Cristiny Pereira
- Suely-Galdino Therapeutic Innovation Research Center (NUPIT-SG), Federal University of Pernambuco, Recife, Pernambuco, Brazil.
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9
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Tran NP, Tran P, Yoo SY, Tangchang W, Lee S, Lee JY, Son HY, Park JS. Sialic acid-decorated liposomes enhance the anti-cancer efficacy of docetaxel in tumor-associated macrophages. BIOMATERIALS ADVANCES 2023; 154:213606. [PMID: 37678087 DOI: 10.1016/j.bioadv.2023.213606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 09/09/2023]
Abstract
Tumor-associated macrophages (TAMs) in the tumor microenvironment potentially enhance tumor growth and invasion through various mechanisms and are thus an essential factor in tumor immunity. The highly expressed siglec-1 receptors on the surfaces of TAMs are potential targets for cancer drug delivery systems. Sialic acid (SA) is a specific ligand for siglec-1. In this study, the sialic acid-polyethylene glycol conjugate (DSPE-PEG2000-SA) was synthesized to modify the surface of liposomes and target TAMs by interacting with the siglec-1 receptor. Three docetaxel (DTX)-loaded liposomes, conventional (DTX-CL), DSPE-PEG2000-coated (DTX-PL), and DSPE-PEG2000-SA-coated (DTX-SAPL) liposomes, were prepared, with a particle size of <100 nm, uniform polydispersity index (PDI) values, negative zeta potential, and % encapsulation efficiency (EE) exceeding 95 %. Liposomes showed high stability after 3 months of storage at 4 °C without significant changes in particle size, PDI, zeta potential, or % EE. DTX was released from liposomes according to the Weibull model, and DTX-SAPL exhibited more rapid drug release than other liposomes. In vitro studies demonstrated that DTX-SAPL liposome exhibited a higher uptake and cytotoxicity on RAW 264.7 cells (TAM model) and lower toxicity on NIH3T3 cells (normal cell model) than other formulations. The high cell uptake ability was demonstrated by the role of the SA-SA receptor. Biodistribution studies indicated a high tumor accumulation of surface-modified liposomal formulations, particularly SA-modified liposomes, showing high signal accumulation at the tumor periphery, where TAMs were highly concentrated. Ex vivo imaging showed a significantly higher accumulation of SA-modified liposomes in the tumor, kidney, and heart than conventional liposomes. In the anti-cancer efficacy study, DTX-SAPL liposomes showed effective inhibition of tumor growth and relatively low systemic toxicity, as evidenced by the tumor volume, tumor weight, body weight values, and histopathological analysis. Therefore, DSPE-PEG2000-SA-coated liposomes could be promising carriers for DTX delivery targeting TAMs in cancer therapy.
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Affiliation(s)
- Nhan Phan Tran
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Phuong Tran
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - So-Yeol Yoo
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Warisraporn Tangchang
- College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Seokwoo Lee
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Jae-Young Lee
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Hwa-Young Son
- College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Jeong-Sook Park
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea.
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10
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Dan J, Cai J, Zhong Y, Wang C, Huang S, Zeng Y, Fan Z, Xu C, Hu L, Zhang J, Hu J, Liu Y, Su X, Zhu W, Yan G, Liang J, Lin Y. Oncolytic virus M1 functions as a bifunctional checkpoint inhibitor to enhance the antitumor activity of DC vaccine. Cell Rep Med 2023; 4:101229. [PMID: 37820722 PMCID: PMC10591054 DOI: 10.1016/j.xcrm.2023.101229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 08/03/2023] [Accepted: 09/15/2023] [Indexed: 10/13/2023]
Abstract
Although promising, dendritic cell (DC) vaccines still provide limited clinical benefits, mainly due to the immunosuppressive tumor microenvironment (TME) and the lack of tumor-associated antigens (TAAs). Oncolytic virus therapy is an ideal strategy to overcome immunosuppression and expose TAAs; therefore, they may work synergistically with DC vaccines. In this study, we demonstrate that oncolytic virus M1 (OVM) can enhance the antitumor effects of DC vaccines across diverse syngeneic mouse tumor models by increasing the infiltration of CD8+ effector T cells in the TME. Mechanically, we show that tumor cells counteract DC vaccines through the SIRPα-CD47 immune checkpoint, while OVM can downregulate SIRPα in DCs and CD47 in tumor cells. Since OVM upregulates PD-L1 in DCs, combining PD-L1 blockade with DC vaccines and OVM further enhances antitumor activity. Overall, OVM strengthens the antitumor efficacy of DC vaccines by targeting the SIRPα-CD47 axis, which exerts dominant immunosuppressive effects on DC vaccines.
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Affiliation(s)
- Jia Dan
- Advanced Medical Technology Center, The First Affiliated Hospital-Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China; Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China; Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Jing Cai
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Yingqian Zhong
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Chaoqun Wang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Shanyu Huang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Ying Zeng
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhen Fan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Cuiying Xu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Linyi Hu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Jiayu Zhang
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510000, China
| | - Jun Hu
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Ying Liu
- Department of Infectious Diseases, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xingwen Su
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Wenbo Zhu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Guangmei Yan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Jiankai Liang
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China.
| | - Yuan Lin
- Advanced Medical Technology Center, The First Affiliated Hospital-Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China; Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China.
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11
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Humpfle L, Hachem NE, Simon P, Weinhold B, Galuska SP, Middendorff R. Knockout of the polysialyltransferases ST8SiaII and ST8SiaIV leads to a dilatation of rete testis during postnatal development. Front Physiol 2023; 14:1240296. [PMID: 37520830 PMCID: PMC10382229 DOI: 10.3389/fphys.2023.1240296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 07/03/2023] [Indexed: 08/01/2023] Open
Abstract
Polysialic acid (polySia) is a carbohydrate polymer that modulates several cellular processes, such as migration, proliferation and differentiation processes. In the brain, its essential impact during postnatal development is well known. However, in most other polySia positive organs, only its localization has been described so far. For instance, in the murine epididymis, smooth muscle cells of the epididymal duct are polysialylated during the first 2 weeks of postnatal development. To understand the role of polySia during the development of the epididymis, the consequences of its loss were investigated in postnatal polySia knockout mice. As expected, no polysialylation was visible in the absence of the polysialyltransferases ST8SiaII and ST8SiaIV. Interestingly, cGMP-dependent protein kinase I (PGK1), which is essentially involved in smooth muscle cell relaxation, was not detectable in peritubular smooth muscle cells when tissue sections of polySia knockout mice were analyzed by immunohistochemistry. In contrast to this signaling molecule, the structural proteins smooth muscle actin (SMA) and calponin were expressed. As shown before, in the duct system of the testis, even the expression of these structural proteins was impaired due to the loss of polySia. We now found that the rete testis, connecting the duct system of the testis and epididymis, was extensively dilated. The obtained data suggest that less differentiated smooth muscle cells of the testis and epididymis result in disturbed contractility and thus, fluid transport within the duct system visible in the enlarged rete testis.
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Affiliation(s)
- Luisa Humpfle
- Institute of Anatomy and Cell Biology, Medical Faculty, Justus-Liebig-University, Giessen, Germany
| | - Nadim E. Hachem
- Institute of Anatomy and Cell Biology, Medical Faculty, Justus-Liebig-University, Giessen, Germany
| | - Peter Simon
- Institute of Anatomy and Cell Biology, Medical Faculty, Justus-Liebig-University, Giessen, Germany
- Institute of Biochemistry, Medical Faculty, Justus-Liebig-University, Giessen, Germany
| | - Birgit Weinhold
- Institute of Cellular Chemistry, Hannover Medical School, Hannover, Germany
| | | | - Ralf Middendorff
- Institute of Anatomy and Cell Biology, Medical Faculty, Justus-Liebig-University, Giessen, Germany
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12
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Pillsbury CE, Dougan J, Rabe JL, Fonseca JA, Zhou C, Evans AN, Abukharma H, Ichoku O, Gonzalez-Flamenco G, Park SI, Aljudi A, DeRyckere D, Castellino SM, Rafiq S, Langermann S, Liu LN, Henry CJ, Porter CC. Siglec-15 Promotes Evasion of Adaptive Immunity in B-cell Acute Lymphoblastic Leukemia. CANCER RESEARCH COMMUNICATIONS 2023; 3:1248-1259. [PMID: 37465593 PMCID: PMC10351425 DOI: 10.1158/2767-9764.crc-23-0056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/28/2023] [Accepted: 06/20/2023] [Indexed: 07/20/2023]
Abstract
Siglec-15 (Sig15) has been implicated as an immune checkpoint expressed in solid tumor-infiltrating macrophages and is being targeted in clinical trials with mAbs to normalize the tumor immune microenvironment and stimulate antitumor immunity. However, the role of Sig15 in hematologic malignancies remains undefined. Sig15 mRNA and protein expression levels in hematologic malignancies were determined from publicly available databases, cell lines, and primary patient samples. Human B-cell acute lymphoblastic leukemia (B-ALL) cell lines were used to identify signaling pathways involved in the regulation of Sig15 expression. Secreted/soluble Sig15 and cytokine levels were measured from the plasma of children with leukemia and healthy controls. Knockdown and knockout of Siglec15 in a murine model of B-ALL was used to evaluate the effect of leukemia-derived Sig15 on the immune response to leukemia. We observed pathologic overexpression of Sig15 in a variety of hematologic malignancies, including primary B-ALL samples. This overexpression was driven by NFκB activation, which also increased the surface localization of Sig15. Secreted/soluble Sig15 was found to circulate at elevated levels in the plasma of children with B-ALL and correlated with an immune-suppressive cytokine milieu. Genetic inhibition of Sig15 in murine B-ALL promoted clearance of the leukemia by the immune system and a marked reversal of the immune-privileged leukemia bone marrow niche, including expanded early effector CD8+ T cells and reduction of immunosuppressive cytokines. Thus, Sig15 is a novel, potent immunosuppressive molecule active in leukemia that may be targeted therapeutically to activate T lymphocytes against leukemia cells. Significance We demonstrate that Sig15 is overexpressed in hematologic malignancies driven by NFκB, is required for immune evasion in a mouse model of leukemia, and, for the first time, that it circulates at high levels in the plasma of children with leukemia.
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Affiliation(s)
- Claire E. Pillsbury
- Cancer Biology Program, Laney Graduate School, Emory University, Atlanta, Georgia
| | - Jodi Dougan
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Jennifer L. Rabe
- Molecular Biology Program, University of Colorado Denver, Aurora, Colorado
| | - Jairo A. Fonseca
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Chengjing Zhou
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Alyssa N. Evans
- Winship Cancer Institute, Emory University, Atlanta, Georgia
| | | | | | | | - Sunita I. Park
- Clinical Laboratory, Children's Healthcare of Atlanta, Atlanta, Georgia
- Department of Pathology, Emory University School of Medicine, Atlanta, Georgia
| | - Ahmed Aljudi
- Clinical Laboratory, Children's Healthcare of Atlanta, Atlanta, Georgia
- Department of Pathology, Emory University School of Medicine, Atlanta, Georgia
| | - Deborah DeRyckere
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
- Winship Cancer Institute, Emory University, Atlanta, Georgia
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Sharon M. Castellino
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
- Winship Cancer Institute, Emory University, Atlanta, Georgia
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Sarwish Rafiq
- Winship Cancer Institute, Emory University, Atlanta, Georgia
| | | | | | - Curtis J. Henry
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
- Winship Cancer Institute, Emory University, Atlanta, Georgia
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Christopher C. Porter
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
- Winship Cancer Institute, Emory University, Atlanta, Georgia
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia
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13
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Günther J, Galuska SP. A brief history of galectin evolution. Front Immunol 2023; 14:1147356. [PMID: 37457740 PMCID: PMC10343441 DOI: 10.3389/fimmu.2023.1147356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 06/13/2023] [Indexed: 07/18/2023] Open
Abstract
Galectins are a family of carbohydrate-binding proteins found in vertebrates in great abundance and diversity in terms of both structure and ligand-binding properties as well as physiological function. Proteins with clear relationships to vertebrate galectins are already found in primitive Bilateria. The increasing amount of accessible well-annotated bilaterian genomes has allowed us to reveal, through synteny analyses, a new hypothesis about the phylogenetic history of the galectin family in this animal group. Thus, we can trace the genomic localization of the putative ancestral Bilateria galectin back to the scallops as a still very primitive slow-evolving bilaterian lineage. Intriguingly, our analyses show that the primordial galectin of the Deuterostomata most likely exhibited galectin-8-like characteristics. This basal standing galectin is characterized by a tandem-repeat type with two carbohydrate recognition domains as well as by a sialic acid binding property of the N-terminal domain, which is typical for galectin-8. With the help of synteny, the amplification of this potential primordial galectin to the broad galectin cosmos of modern jawed vertebrates can be reconstructed. Therefore, it is possible to distinguish between the paralogs resulting from small-scale duplication and the ohnologues generated by whole-genome duplication. Our findings support a substantially new hypothesis about the origin of the various members of the galectin family in vertebrates. This allows us to reveal new theories on the kinship relationships of the galectins of Gnatostomata. In addition, we focus for the first time on the galectines of the Cyclostomata, which as a sister group of jawed vertebrates providing important insights into the evolutionary history of the entire subphylum. Our studies also highlight a previously neglected member of the galectin family, galectin-related protein 2. This protein appears to be a widespread ohnologue of the original tandem-repeat ancestor within Gnathostomata that has not been the focus of galectin research due to its nonclassical galactose binding sequence motif and the fact that it was lost during mammalian evolution.
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14
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Fosse JH, Andresen AMS, Ploss FB, Weli SC, Heffernan IA, Sapkota S, Lundgård K, Kuiper RV, Solhaug A, Falk K. The infectious salmon anemia virus esterase prunes erythrocyte surfaces in infected Atlantic salmon and exposes terminal sialic acids to lectin recognition. Front Immunol 2023; 14:1158077. [PMID: 37180109 PMCID: PMC10167051 DOI: 10.3389/fimmu.2023.1158077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/03/2023] [Indexed: 05/15/2023] Open
Abstract
Many sialic acid-binding viruses express a receptor-destroying enzyme (RDE) that removes the virus-targeted receptor and limits viral interactions with the host cell surface. Despite a growing appreciation of how the viral RDE promotes viral fitness, little is known about its direct effects on the host. Infectious salmon anemia virus (ISAV) attaches to 4-O-acetylated sialic acids on Atlantic salmon epithelial, endothelial, and red blood cell surfaces. ISAV receptor binding and destruction are effectuated by the same molecule, the haemagglutinin esterase (HE). We recently discovered a global loss of vascular 4-O-acetylated sialic acids in ISAV-infected fish. The loss correlated with the expression of viral proteins, giving rise to the hypothesis that it was mediated by the HE. Here, we report that the ISAV receptor is also progressively lost from circulating erythrocytes in infected fish. Furthermore, salmon erythrocytes exposed to ISAV ex vivo lost their capacity to bind new ISAV particles. The loss of ISAV binding was not associated with receptor saturation. Moreover, upon loss of the ISAV receptor, erythrocyte surfaces became more available to the lectin wheat germ agglutinin, suggesting a potential to alter interactions with endogenous lectins of similar specificity. The pruning of erythrocyte surfaces was inhibited by an antibody that prevented ISAV attachment. Furthermore, recombinant HE, but not an esterase-silenced mutant, was sufficient to induce the observed surface modulation. This links the ISAV-induced erythrocyte modulation to the hydrolytic activity of the HE and shows that the observed effects are not mediated by endogenous esterases. Our findings are the first to directly link a viral RDE to extensive cell surface modulation in infected individuals. This raises the questions of whether other sialic acid-binding viruses that express RDEs affect host cells to a similar extent, and if such RDE-mediated cell surface modulation influences host biological functions with relevance to viral disease.
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15
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Klaas M, Dubock S, Ferguson DJP, Crocker PR. Sialoadhesin (CD169/Siglec-1) is an extended molecule that escapes inhibitory cis-interactions and synergizes with other macrophage receptors to promote phagocytosis. Glycoconj J 2023; 40:213-223. [PMID: 36738392 PMCID: PMC10027830 DOI: 10.1007/s10719-022-10097-1] [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: 12/12/2022] [Revised: 12/13/2022] [Accepted: 12/23/2022] [Indexed: 02/05/2023]
Abstract
Sialoadhesin (CD169/Siglec-1, Sn) is a macrophage receptor that interacts with sialic acids on both host cells and pathogens. It is a type 1 membrane protein with an unusually large number of 17 extracellular immunoglobulin (Ig)-like domains, made up of an N-terminal V-set domain that binds sialic acid and 16 adjacent C2-set domains. The potential importance of 17 Ig domains in Sn for mediating cellular interactions has not been investigated experimentally. In the present study, Chinese Hamster Ovary (CHO) cells were stably transfected with full-length or truncated forms of Sn. Using human red blood cells (RBC) as a model system, CHO cells expressing truncated forms of Sn with 4 or less Ig domains were unable to bind RBC in comparison to the full-length protein. Immunoelectron microscopy of the CHO cells indicated that full-length Sn extends ~ 33 nm from the plasma membrane compared with ~ 14 nm for a truncated form with 6 N-terminal Ig domains. Co-expresssion of Sn-expressing CHO cells with heavily glycosylated membrane proteins of differing predicted lengths resulted in selective modulation of Sn-dependent binding to RBC and supported the hypothesis that Sn has evolved 17 Ig domains to escape inhibitory cis-interactions. The functional significance of the extended length of Sn was demonstrated in experiments with macrophages showing that Sn synergizes with phagocytic receptors FcR and TIM-4 to strongly promote uptake of IgG-opsonized and eryptotic RBC respectively.
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Affiliation(s)
- Mariliis Klaas
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dow Street, Dundee, United Kingdom
- Department of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, Tartu, Estonia
| | - Stuart Dubock
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dow Street, Dundee, United Kingdom
| | - David J P Ferguson
- Nuffield Division of Clinical Laboratory Sciences, Oxford University, John Radcliffe Hospital, Oxford, United Kingdom
- Department Biological & Medical Sciences, Oxford Brookes University, Oxford, United Kingdom
| | - Paul R Crocker
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dow Street, Dundee, United Kingdom.
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16
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Angata T, Varki A. Discovery, classification, evolution and diversity of Siglecs. Mol Aspects Med 2023; 90:101117. [PMID: 35989204 PMCID: PMC9905256 DOI: 10.1016/j.mam.2022.101117] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 08/03/2022] [Accepted: 08/06/2022] [Indexed: 02/08/2023]
Abstract
Immunoglobulin (Ig) superfamily proteins play diverse roles in vertebrates, including regulation of cellular responses by sensing endogenous or exogenous ligands. Siglecs are a family of glycan-recognizing proteins belonging to the Ig superfamily (i.e., I-type lectins). Siglecs are expressed on various leukocyte types and are involved in diverse aspects of immunity, including the regulation of inflammatory responses, leukocyte proliferation, host-microbe interaction, and cancer immunity. Sialoadhesin/Siglec-1, CD22/Siglec-2, and myelin-associated glycoprotein/Siglec-4 were among the first to be characterized as members of the Siglec family, and along with Siglec-15, they are relatively well-conserved among tetrapods. Conversely, CD33/Siglec-3-related Siglecs (CD33rSiglecs, so named as they show high sequence similarity with CD33/Siglec-3) are encoded in a gene cluster with many interspecies variations and even intraspecies variations within some lineages such as humans. The rapid evolution of CD33rSiglecs expressed on leukocytes involved in innate immunity likely reflects the selective pressure by pathogens that interact and possibly exploit these Siglecs. Human Siglecs have several additional unique and/or polymorphic properties as compared with closely related great apes, changes possibly related to the loss of the sialic acid Neu5Gc, another distinctly human event in sialobiology. Multiple changes in human CD33rSiglecs compared to great apes include many examples of human-specific expression in non-immune cells, coinciding with human-specific diseases involving such cell types. Some Siglec gene polymorphisms have dual consequences-beneficial in a situation but detrimental in another. The association of human Siglec gene polymorphisms with several infectious and non-infectious diseases likely reflects the ongoing competition between the host and microbial pathogens.
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Affiliation(s)
- Takashi Angata
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan; Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan.
| | - Ajit Varki
- Department of Cellular and Molecular Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, USA.
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17
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Prenzler S, Rudrawar S, Waespy M, Kelm S, Anoopkumar-Dukie S, Haselhorst T. The role of sialic acid-binding immunoglobulin-like-lectin-1 (siglec-1) in immunology and infectious disease. Int Rev Immunol 2023; 42:113-138. [PMID: 34494938 DOI: 10.1080/08830185.2021.1931171] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Siglec-1, also known as Sialoadhesin (Sn) and CD169 is highly conserved among vertebrates and with 17 immunoglobulin-like domains is Siglec-1 the largest member of the Siglec family. Expression of Siglec-1 is found primarily on dendritic cells (DCs), macrophages and interferon induced monocyte. The structure of Siglec-1 is unique among siglecs and its function as a receptor is also different compared to other receptors in this class as it contains the most extracellular domains out of all the siglecs. However, the ability of Siglec-1 to internalize antigens and to pass them on to lymphocytes by allowing dendritic cells and macrophages to act as antigen presenting cells, is the main reason that has granted Siglec-1's key role in multiple human disease states including atherosclerosis, coronary artery disease, autoimmune diseases, cell-cell signaling, immunology, and more importantly bacterial and viral infections. Enveloped viruses for example have been shown to manipulate Siglec-1 to increase their virulence by binding to sialic acids present on the virus glycoproteins allowing them to spread or evade immune response. Siglec-1 mediates dissemination of HIV-1 in activated tissues enhancing viral spread via infection of DC/T-cell synapses. Overall, the ability of Siglec-1 to bind a variety of target cells within the immune system such as erythrocytes, B-cells, CD8+ granulocytes and NK cells, highlights that Siglec-1 is a unique player in these essential processes.
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Affiliation(s)
- Shane Prenzler
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Queensland, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Santosh Rudrawar
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Queensland, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Mario Waespy
- Centre for Biomolecular Interactions Bremen, Department of Biology and Chemistry, University of Bremen, Bremen, Germany
| | - Sørge Kelm
- Centre for Biomolecular Interactions Bremen, Department of Biology and Chemistry, University of Bremen, Bremen, Germany
| | - Shailendra Anoopkumar-Dukie
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Queensland, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Thomas Haselhorst
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
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18
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Huang R, Zheng J, Shao Y, Zhu L, Yang T. Siglec-15 as multifunctional molecule involved in osteoclast differentiation, cancer immunity and microbial infection. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2023; 177:34-41. [PMID: 36265694 DOI: 10.1016/j.pbiomolbio.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 09/19/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
Abstract
Siglec-15 is a highly conserved member of the Siglec family, expressed on osteoclasts, a subset of myeloid cells and some cancer cells. Except for regulating osteoclast differentiation, Siglec-15 engages in immunoregulation as an immune suppressor. Siglec-15 functions as an immunosuppressive molecule in tumor-associated macrophage-mediated T cell immunity in the tumor microenvironment (TME), which makes Siglec-15 to be an emerging and promising target for normalization cancer immunotherapy. Besides, Siglec-15 interacts with sialylated pathogens and modulates host immune response against microbial pathogens by altering cytokine production and/or phagocytosis, which further broadens the underlying pathophysiological roles of Siglec-15. The fact that N-glycosylation and sialylation of Siglec-15 play a pivotal role in Siglec-15 biological function indicates that targeting certain post-translational modification may be an effective strategy for targeting Siglec-15 therapy. In-depth exploring Siglec-15 biology function is crucial for better design of Siglec-15-based therapy according to different clinical indications.
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Affiliation(s)
- Rui Huang
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China; Department of Clinical Laboratory, Children's Hospital and Women Health Center of Shanxi, Taiyuan, China
| | - Jinxiu Zheng
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, Taiyuan, China
| | - Ying Shao
- Department of Pathophysiology, Shanxi Medical University, Taiyuan, China
| | - Lei Zhu
- Department of Clinical Laboratory, Children's Hospital and Women Health Center of Shanxi, Taiyuan, China
| | - Tao Yang
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, Taiyuan, China.
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19
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Milk Polysialic Acid Levels Rapidly Decrease in Line with the N-Acetylneuraminic Acid Concentrations during Early Lactation in Dairy Cows. BIOLOGY 2022; 12:biology12010005. [PMID: 36671698 PMCID: PMC9854834 DOI: 10.3390/biology12010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/12/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Sialylated milk oligosaccharides and glycoconjugates have several positive effects on the mucosal barrier, the gut microbiome, and an effective immune system. For this reason, they are important biomolecules for mammary gland health and optimal development of offspring. In milk, the major sialic acid, N-acetylneuraminic acid (Neu5Ac), can be attached as monosialyl-residues or as polymers. To investigate the sialylation processes during lactation of German Holstein cows, we analyzed udder tissue in addition to milk at different time points of lactation. The analysis of the milk samples revealed that both the levels of Neu5Ac and its polymer, polysialic acid (polySia), rapidly decreased during the first three days of lactation, and a high interindividual variance was observed. In mature milk, however, the sialylation status remains relatively constant. The results indicate that mammary gland epithelial cells are one source for milk polySia, since immunohistochemistry of udder tissue exhibited strong polySia staining in these cells. Furthermore, both polysialyltransferases, ST8SiaII and ST8SiaIV, are expressed. Based on known functions of monosialyl residues and polySia, we discuss the potential impact of these biomolecules and the consequences of the heterogeneous sialylation status of milk in relation to udder health and offspring health.
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20
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Läubli H, Nalle SC, Maslyar D. Targeting the Siglec-Sialic Acid Immune Axis in Cancer: Current and Future Approaches. Cancer Immunol Res 2022; 10:1423-1432. [PMID: 36264237 PMCID: PMC9716255 DOI: 10.1158/2326-6066.cir-22-0366] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/08/2022] [Accepted: 09/01/2022] [Indexed: 01/10/2023]
Abstract
The sialic acid-binding immunoglobulin-like lectin (Siglec)-sialic acid immune axis is an evolutionarily conserved immunoregulatory pathway that provides a mechanism for establishing self-recognition and combatting invasive pathogens. Perturbations in the pathway lead to many immune dysregulated diseases, including autoimmunity, neurodegeneration, allergic conditions, and cancer. The purpose of this review is to provide a brief overview of the relationship between Siglecs and sialic acid as they relate to human health and disease, to consider current Siglec-based therapeutics, and to discuss new therapeutic approaches targeting the Siglec-sialic acid immune axis, with a focus on cancer.
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Affiliation(s)
- Heinz Läubli
- Laboratory for Cancer Immunotherapy, Department of Biomedicine, University, of Basel, Basel, Switzerland.,Division of Oncology, University Hospital Basel, Basel, Switzerland.,Corresponding Author: Heinz Läubli, University Hospital Basel, Petersgraben 4, Basel 4031, Switzerland. Phone: 416-1556-5212; Fax: 416-1265-5316; E-mail:
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21
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Liu G, Hao M, Zeng B, Liu M, Wang J, Sun S, Liu C, Huilian C. Sialic acid and food allergies: The link between nutrition and immunology. Crit Rev Food Sci Nutr 2022; 64:3880-3906. [PMID: 36369942 DOI: 10.1080/10408398.2022.2136620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Food allergies (FA), a major public health problem recognized by the World Health Organization, affect an estimated 3%-10% of adults and 8% of children worldwide. However, effective treatments for FA are still lacking. Recent advances in glycoimmunology have demonstrated the great potential of sialic acids (SAs) in the treatment of FA. SAs are a group of nine-carbon α-ketoacids usually linked to glycoproteins and glycolipids as terminal glycans. They play an essential role in modulating immune responses and may be an effective target for FA intervention. As exogenous food components, sialylated polysaccharides have anti-FA effects. In contrast, as endogenous components, SAs on immunoglobulin E and immune cell surfaces contribute to the pathogenesis of FA. Given the lack of comprehensive information on the effects of SAs on FA, we reviewed the roles of endogenous and exogenous SAs in the pathogenesis and treatment of FA. In addition, we considered the structure-function relationship of SAs to provide a theoretical basis for the development of SA-based FA treatments.
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Affiliation(s)
- Guirong Liu
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Mengzhen Hao
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Binghui Zeng
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Manman Liu
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Junjuan Wang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Shanfeng Sun
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Changqi Liu
- School of Exercise and Nutritional Sciences, College of Health and Human Services, San Diego State University, California, United States of America
| | - Che Huilian
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
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22
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Saini P, Adeniji OS, Abdel-Mohsen M. Inhibitory Siglec-sialic acid interactions in balancing immunological activation and tolerance during viral infections. EBioMedicine 2022; 86:104354. [PMID: 36371982 PMCID: PMC9663867 DOI: 10.1016/j.ebiom.2022.104354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/21/2022] [Accepted: 10/23/2022] [Indexed: 11/11/2022] Open
Abstract
Siglecs are a family of emerging glyco-immune checkpoints. Inhibiting them can enhance the functions of several types of immune cells, whereas engaging them can reduce hyper-inflammation and hyper-activation of immune functions. Siglec-sialoglycan interactions play an important role in modulating immunological functions during cancer, however, their roles in regulating immunological equilibrium during viral infections is less clear. In this review, we discuss the documented and potential roles of inhibitory Siglecs in balancing immune activation and tolerance during viral infections and consider how this balance could affect both the desired anti-viral immunological functions and the unwanted hyper- or chronic inflammation. Finally, we discuss the opportunities to target the Siglec immunological switches to reach an immunological balance during viral infections: inhibiting specific Siglec-sialoglycan interactions when maximum anti-viral immune responses are needed, or inducing other interactions when preventing excessive inflammation or reducing chronic immune activation are the goals.
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Affiliation(s)
| | | | - Mohamed Abdel-Mohsen
- Corresponding author. Vaccine and Immunotherapy Center, The Wistar Institute, 3601 Spruce Street, Philadelphia, PA 19104, USA.
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Fliniaux I, Marchand G, Molinaro C, Decloquement M, Martoriati A, Marin M, Bodart JF, Harduin-Lepers A, Cailliau K. Diversity of sialic acids and sialoglycoproteins in gametes and at fertilization. Front Cell Dev Biol 2022; 10:982931. [PMID: 36340022 PMCID: PMC9630641 DOI: 10.3389/fcell.2022.982931] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 10/10/2022] [Indexed: 09/22/2023] Open
Abstract
Sialic acids are a family of 9-carbon monosaccharides with particular physicochemical properties. They modulate the biological functions of the molecules that carry them and are involved in several steps of the reproductive process. Sialoglycoproteins participate in the balance between species recognition and specificity, and the mechanisms of these aspects remain an issue in gametes formation and binding in metazoan reproduction. Sialoglycoproteins form a specific coat at the gametes surface and specific polysialylated chains are present on marine species oocytes. Spermatozoa are submitted to critical sialic acid changes in the female reproductive tract facilitating their migration, their survival through the modulation of the female innate immune response, and the final oocyte-binding event. To decipher the role of sialic acids in gametes and at fertilization, the dynamical changes of enzymes involved in their synthesis and removal have to be further considered.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Katia Cailliau
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
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Wu L, Yin Z, Zheng Z, Tang Y, Guo S. Comprehensive Relationship Analysis of the Long Noncoding RNAs (lncRNAs) and the Target mRNAs in Response to the Infection of Edwardsiella anguillarum in European eel (Anguilla anguilla) Inoculated with Freund's Adjuvant. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:956-968. [PMID: 35995892 DOI: 10.1007/s10126-022-10157-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Freund's complete adjuvant (FCA) and incomplete adjuvant (FIA), generally applied in subunit fishery vaccine, have not been explored on the molecular mechanism of the non-specific immune enhancement. As long noncoding RNAs (lncRNAs) play vital regulating roles in various biological activities, in this study, we examined the genome-wide expression of transcripts in the liver of European eel (Anguilla anguilla, Aa) inoculated with FCA and FIA (FCIA) to elucidate the regulators of lncRNAs in the process of Edwardsiella anguillarum (Ea) infection and Aa anti-Ea infection using strand-specific RNA-seq. After eels were challenged by Ea at 28 days post the first inoculation (dpi), compared to the control uninfected eels (Li group), the control infected eels (Con_Li group) showed severe bleeding, hepatocyte atrophy, and thrombi formed in the hepatic vessels of the liver, although eels inoculated with FCIA (FCIA_Li group) also formed slight thrombi in the hepatic vessels. Compared to the FCIA_Li group, there was about 10 times colony-forming unit (cfu) in the Con_Li group per 100 μg liver tissue, and the relative percent survival (RPS) of eels was 50% in FCIA_Li vs Con_Li. Using high-throughput transcriptomics, differential expressed genes (DEGs) and transcripts were identified and the results were verified using fluorescence real-time polymerase chain reaction (qRT-PCR). Interactions between the differential expressed lncRNAs (DE-lncRNAs) and the target DEGs were explored using Cytoscape according to their co-expression and co-location relationship. We found 13,499 lncRNAs (10,176 annotated and 3423 novel lncRNAs) between 3 comparisons of Con_Li vs Li, FCIA_Li vs Li, and FCIA_Li vs Con_Li, of which 111, 110, and 129 DE-lncRNAs were ascertained. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of DEGs targeted by DE-lncRNAs revealed these DEGs mainly involved in single-organism cellular process in BP, membrane in CC and binding in MF, and KEGG pathways showed that the target DEGs in co-expression and co-location enriched in cell adhesion molecules. Finally, 118 DE-lncRNAs target 1161 DEGs were involved in an interaction network of 8474 co-expression and 333 co-location-related links, of which 16 DE-lncRNAs play vital roles in anti-Ea infection. Taken together, the interaction networks revealed that DE-lncRNAs underlies the process of Ea infection and Aa anti-Ea infection.
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Affiliation(s)
- Liqun Wu
- College of Overseas Education, Jimei University, Xiamen, 361021, China
| | - Zhijie Yin
- Fisheries College, Engineering Research Center of the Modern Industry Technology for Eel. Ministry of Education of PRC, Jimei University, Xiamen, 361021, China
| | - Zhijin Zheng
- Fisheries College, Engineering Research Center of the Modern Industry Technology for Eel. Ministry of Education of PRC, Jimei University, Xiamen, 361021, China
| | - Yijun Tang
- Department of Chemistry, University of Wisconsin Oshkosh, 800 Algoma Blvd., Oshkosh, WI, USA
| | - Songlin Guo
- Fisheries College, Engineering Research Center of the Modern Industry Technology for Eel. Ministry of Education of PRC, Jimei University, Xiamen, 361021, China.
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Herzog S, Fragkou PC, Arneth BM, Mkhlof S, Skevaki C. Myeloid CD169/Siglec1: An immunoregulatory biomarker in viral disease. Front Med (Lausanne) 2022; 9:979373. [PMID: 36213653 PMCID: PMC9540380 DOI: 10.3389/fmed.2022.979373] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
CD169, also known as Siglec1 or Sialoadhesin (Sn), is a surface adhesion molecule on human myeloid cells. Being part of the Siglec family, it acts as a receptor for sialylated molecular structures, which are found among various pathogenic and non-pathogenic ligands. Recent data suggest that CD169 may represent a promising new biomarker in acute respiratory and non-respiratory viral infections, such as SARS-CoV-2, Respiratory syncytial virus (RSV) and Human immunodeficiency virus (HIV). Therein lies a great potential to sufficiently differentiate viral from bacterial infection, which has been an incessant challenge in the clinical management of infectious disease. CD169 equips myeloid cells with functions, reaching far beyond pathogen elimination. In fact, CD169 seems to crosslink innate and adaptive immunity by antigen presentation and consecutive pathogen elimination, embodying a substantial pillar of immunoregulation. Yet, our knowledge about the kinetics, mechanisms of induction, signaling pathways and its precise role in host-pathogen interaction remains largely obscure. In this review, we describe the role of CD169 as a potentially novel diagnostic biomarker for respiratory viral infection by evaluating its strengths and weaknesses and considering host factors that are involved in pathogenesis of virus infection. Finally, this brief review aims to point out shortcomings of available evidence, thus, guiding future work revolving the topic.
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Affiliation(s)
- Silva Herzog
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus Liebig University Giessen, Giessen, Germany
- The European Society of Clinical Microbiology and Infection (ESCMID) Study Group for Respiratory Viruses (ESGREV), Basel, Switzerland
| | - Paraskevi C. Fragkou
- The European Society of Clinical Microbiology and Infection (ESCMID) Study Group for Respiratory Viruses (ESGREV), Basel, Switzerland
- First Department of Critical Care Medicine and Pulmonary Services, School of Medicine, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Borros M. Arneth
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus Liebig University Giessen, Giessen, Germany
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-University Marburg, Marburg, Germany
| | - Samr Mkhlof
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus Liebig University Giessen, Giessen, Germany
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-University Marburg, Marburg, Germany
| | - Chrysanthi Skevaki
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus Liebig University Giessen, Giessen, Germany
- The European Society of Clinical Microbiology and Infection (ESCMID) Study Group for Respiratory Viruses (ESGREV), Basel, Switzerland
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-University Marburg, Marburg, Germany
- Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Marburg, Germany
- *Correspondence: Chrysanthi Skevaki,
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Akiyama M, Eura Y, Kokame K. Siglec-5 and Siglec-14 mediate the endocytosis of ADAMTS13. Thromb Res 2022; 219:49-59. [PMID: 36116391 DOI: 10.1016/j.thromres.2022.09.005] [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: 03/08/2022] [Revised: 08/26/2022] [Accepted: 09/07/2022] [Indexed: 10/31/2022]
Abstract
BACKGROUND The plasma metalloprotease ADAMTS13 regulates the thrombotic activity of the von Willebrand factor (VWF). ADAMTS13 is highly glycosylated and its carbohydrate chains are capped with sialic acid (SA). Thus, ADAMTS13 may interact with carbohydrate- and/or SA-binding plasma membrane receptors that are involved in the clearance of various plasma proteins. We have investigated ADAMTS13 endocytosis via Siglecs, which were originally identified as SA-binding immunoreceptor family proteins expressed on leukocytes and are also known as endocytic receptors. MATERIALS AND METHODS Endocytic internalization of fluorescently labeled ADAMTS13 into HEK293 cells expressing Siglecs was examined via fluorescence microscopy. In vitro binding of ADAMTS13 to the extracellular region of Siglec-5 was examined. Plasma ADAMTS13 activity in human Siglec-5-expressing mice was measured. RESULTS AND CONCLUSIONS Siglec-5- and Siglec-14-expressing cells internalized not only full-length ADAMTS13 (FL) but also the truncated form (MDTCS) at least partly in an SA-independent manner. Replacement of the V-set domain of Siglec-14 with that of Siglec-3 abrogated the internalization of ADAMTS13. ADAMTS13 directly bound to the extracellular region of Siglec-5 in vitro. Expression of Siglec-5 in the mouse liver resulted in a significant decrease in plasma ADAMTS13 activity. These results suggest that Siglec-5 and Siglec-14, which have nearly identical ligand-binding domains, may contribute to the regulation of plasma ADAMTS13 levels as endocytic receptors for ADAMTS13.
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Affiliation(s)
- Masashi Akiyama
- Department of Molecular Pathogenesis, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Yuka Eura
- Department of Molecular Pathogenesis, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Koichi Kokame
- Department of Molecular Pathogenesis, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
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27
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Prescher H, Schweizer A, Frank M, Kuhfeldt E, Ring J, Nitschke L. Targeting Human CD22/Siglec-2 with Dimeric Sialosides as Novel Oligosaccharide Mimetics. J Med Chem 2022; 65:10588-10610. [PMID: 35881556 DOI: 10.1021/acs.jmedchem.2c00765] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Significant interest in the development of high-affinity ligands for Siglecs exists due to the various therapeutically relevant functions of these proteins. Here, we report a new strategy to develop and design Siglec ligands as disialyl-oligosaccharide mimetics exemplified on Siglec-2 (CD22). We report insights into development of dimeric ligands with high affinity and avidity to cell surface-expressed CD22, assay development, tool compounds, structure activity relationships, and biological data on calcium flux regulation in B-cells. The binding modes of selected ligands have been modeled based on state-of-the-art molecular dynamics simulations on the microsecond timescale, providing detailed views on ligand binding and opening a new perspective on drug design efforts for Siglecs. High-avidity dimeric ligands containing a linker opening the way towards bispecifics are presented as well.
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Affiliation(s)
| | - Astrid Schweizer
- Chair of Genetics, Department of Biology, University of Erlangen, 91058 Erlangen, Germany
| | - Martin Frank
- Biognos AB, Generatorsgatan 1, 40274 Göteborg, Sweden
| | | | - Julia Ring
- Chair of Genetics, Department of Biology, University of Erlangen, 91058 Erlangen, Germany
| | - Lars Nitschke
- Chair of Genetics, Department of Biology, University of Erlangen, 91058 Erlangen, Germany
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28
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Rusiniak ME, Punch PR, Hait NC, Maiti A, Burns RT, Chapla D, Moremen KW, Zhao P, Wells L, Hoffmeister K, Lau JTY. Extracellular ST6GAL1 regulates monocyte-macrophage development and survival. Glycobiology 2022; 32:701-711. [PMID: 35661210 PMCID: PMC9280526 DOI: 10.1093/glycob/cwac032] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 05/02/2022] [Accepted: 05/12/2022] [Indexed: 11/14/2022] Open
Abstract
Interaction of immune cells with the systemic environment is necessary for the coordinated development and execution of immune responses. Monocyte-macrophage lineage cells reside at the junction of innate and adaptive immunity. Previously we reported that the sialyltransferase ST6GAL1 in the extracellular milieu modulates B cell development and IgG production, granulocyte production, and attenuates acute airway inflammation to bacterial challenge in mouse models. Here, we report that extracellular ST6GAL1 also elicits profound responses in monocyte-macrophage lineage cells. We show that recombinant ST6GAL1 adheres to subsets of thioglycolate-elicited inflammatory cells in the mouse peritoneum and to cultured human monocyte THP-1 cells. Exposure of the inflammatory cells to recombinant ST6GAL1 elicited wholesale changes in the gene expression profile of primary mouse myeloid cells; most notable was the striking up-regulation of monocyte-macrophage and monocyte-derived dendritic cell development pathway signature genes and transcription factors PU.1, NFκB and their target genes, driving increased monocyte-macrophage population and survival ex vivo. In the cultured human monocyte cells, the essential cell surface receptor of the monocyte-macrophage lineage, the M-CSF receptor (M-CSF-R, Csfr1) was a target of extracellular ST6GAL1 catalytic activity. Extracellular ST6GAL1 activated the M-CSF-R and initiated intracellular signaling events, namely, the nuclear translocation of NFκB subunit p65, and phosphorylation of ERK 1/2 and AKT. The findings implicate extracellular ST6GAL1 in monocyte development by a mechanism initiated at the cell surface and support an emerging paradigm of an extracellular glycan-modifying enzyme as a central regulator coordinating immune hematopoietic cell development and function.
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Affiliation(s)
- Michael E Rusiniak
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Patrick R Punch
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
- Department of Oral Biology, University at Buffalo, Buffalo, NY 14215, United States
| | - Nitai C Hait
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Aparna Maiti
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Robert T Burns
- Translational Glycomics Center, Blood Research Institute, 8727 W. Watertown Plank Rd, Milwaukee, WI 53226, United States
| | - Digantkumar Chapla
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States
| | - Kelley W Moremen
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States
| | - Peng Zhao
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States
| | - Lance Wells
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States
| | - Karin Hoffmeister
- Translational Glycomics Center, Blood Research Institute, 8727 W. Watertown Plank Rd, Milwaukee, WI 53226, United States
| | - Joseph T Y Lau
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
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Saha S, Khan N, Comi T, Verhagen A, Sasmal A, Diaz S, Yu H, Chen X, Akey JM, Frank M, Gagneux P, Varki A. Evolution of Human-Specific Alleles Protecting Cognitive Function of Grandmothers. Mol Biol Evol 2022; 39:6637508. [PMID: 35809046 PMCID: PMC9356730 DOI: 10.1093/molbev/msac151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
The myelomonocytic receptor CD33 (Siglec-3) inhibits innate immune reactivity by extracellular V-set domain recognition of sialic acid (Sia)-containing "self-associated molecular patterns" (SAMPs). We earlier showed that V-set domain-deficient CD33-variant allele, protective against late-onset Alzheimer's Disease (LOAD), is derived and specific to the hominin lineage. We now report multiple hominin-specific CD33 V-set domain mutations. Due to hominin-specific, fixed loss-of-function mutation in the CMAH gene, humans lack N-glycolylneuraminic acid (Neu5Gc), the preferred Sia-ligand of ancestral CD33. Mutational analysis and molecular dynamics (MD)-simulations indicate that fixed change in amino acid 21 of hominin V-set domain and conformational changes related to His45 corrected for Neu5Gc-loss by switching to N-acetylneuraminic acid (Neu5Ac)-recognition. We show that human-specific pathogens Neisseria gonorrhoeae and Group B Streptococcus selectively bind human CD33 (huCD33) as part of immune-evasive molecular mimicry of host SAMPs and that this binding is significantly impacted by amino acid 21 modification. In addition to LOAD-protective CD33 alleles, humans harbor derived, population-universal, cognition-protective variants at several other loci. Interestingly, 11 of 13 SNPs in these human genes (including CD33) are not shared by genomes of archaic hominins: Neanderthals and Denisovans. We present a plausible evolutionary scenario to compile, correlate, and comprehend existing knowledge about huCD33-evolution and suggest that grandmothering emerged in humans.
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Affiliation(s)
- Sudeshna Saha
- Departments of Medicine, Pathology, Anthropology and Cellular and Molecular Medicine, Center for Academic Research and Training in Anthropogeny and Glycobiology Research and Training Center, University of California San Diego, San Diego, CA 92093, USA
| | - Naazneen Khan
- Departments of Medicine, Pathology, Anthropology and Cellular and Molecular Medicine, Center for Academic Research and Training in Anthropogeny and Glycobiology Research and Training Center, University of California San Diego, San Diego, CA 92093, USA
| | - Troy Comi
- Department of Genetics, Princeton University, Princeton, NJ 08544, USA
| | - Andrea Verhagen
- Departments of Medicine, Pathology, Anthropology and Cellular and Molecular Medicine, Center for Academic Research and Training in Anthropogeny and Glycobiology Research and Training Center, University of California San Diego, San Diego, CA 92093, USA
| | - Aniruddha Sasmal
- Departments of Medicine, Pathology, Anthropology and Cellular and Molecular Medicine, Center for Academic Research and Training in Anthropogeny and Glycobiology Research and Training Center, University of California San Diego, San Diego, CA 92093, USA
| | - Sandra Diaz
- Departments of Medicine, Pathology, Anthropology and Cellular and Molecular Medicine, Center for Academic Research and Training in Anthropogeny and Glycobiology Research and Training Center, University of California San Diego, San Diego, CA 92093, USA
| | - Hai Yu
- Department of Chemistry, University of California Davis, Davis, CA 95616, USA
| | - Xi Chen
- Department of Chemistry, University of California Davis, Davis, CA 95616, USA
| | - Joshua M Akey
- Department of Genetics, Princeton University, Princeton, NJ 08544, USA
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Song LM, Long M, Song SJ, Wang JR, Zhao GW, Zhao N. An Integrative Bioinformatics Analysis of Microarray Data for Identifying Differentially Expressed Genes in Preeclampsia. RUSS J GENET+ 2022. [DOI: 10.1134/s1022795422070109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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Wu J, Peng J, Zhou Y, Zhang R, Wang Z, Hu N, Zhang D, Quan G, Wu Y, Feng J, Shen B, Zhao J, Zhang Y, Yang K, Luo L. Screening and Identification of A Novel Anti-Siglec-15 Human Antibody 3F1 and Relevant Antitumor Activity. Mol Pharmacol 2022; 102:161-171. [PMID: 35764384 DOI: 10.1124/molpharm.121.000470] [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: 11/30/2021] [Accepted: 06/19/2022] [Indexed: 11/22/2022] Open
Abstract
Siglec-15 is an important immunosuppressive molecule considered to be a key target in next generation tumor immunotherapy. In this study, we screened 22 high affinity antibodies that specifically recognize human siglec-15 by using a large human phage antibody library and 5 representative sequences were selected for further study. The results showed the binding activity of 5 antibodies to siglec-15 (EC50 ranged from 0.02368μg /mL to 0.07949 μg /mL) and in 2 siglec-15 overexpressed cell lines, 3 antibodies had the strongest binding activity, so the 2 clones were discarded for further study. Subsequently the affinity of 3 antibodies were measured by Bio-layer interferometry technology (5-9×10E-09M). As the reported ligands of siglec-15, the binding activity of siglec-15 and sialyl-Tn, CD44, MAG and LRRC4C can be blocked by 3 of the antibodies. Among these, 3F1 had a competitive advantage. Then, the antibody 3F1 showed an obvious ADCC effect (EC50 were 0.85 μg/mL). Further, antibody 3F1 can reverse the inhibitory effect of siglec-15 on lymphocyte proliferation (especially CD4+T, CD8+T) and cytokine release (IFN-γ). Given the above results, 3F1 was selected as a candidate for the in vivo pharmacodynamics study. In the tumor model of Balb/c Nude mice, 3F1 (10 mg/kg) showed certain anti-tumor effects (TGI was 31.5%) while the combination of 3F1 (5 mg/kg) and ERBITUX (5 mg/kg) showed significant antitumor effects (TGI was 48.7%) compared with the PBS group. In conclusion, novel human antibody 3F1 has anti-tumor activity and is expected to be an innovative candidate drug targeting siglec-15 for tumor immunotherapy Significance Statement Siglec-15 is considered as an important target in the next generation of tumor immunotherapy. 3F1 is expected to be the most promising potential candidate for targeting siglec-15 for cancer treatment, and could provide a reference for the development of anti-tumor drugs.
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Affiliation(s)
- Jiaguo Wu
- Dali University; Institute of Pharmacology and Toxicology, China
| | - Jingyi Peng
- Institute of Pharmacology and Toxicology, China
| | | | - Ran Zhang
- Hunan Normal University School of Medicine, China
| | - Zhihong Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, China
| | - Naijing Hu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, China
| | - Dingmu Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, China
| | - Guiqi Quan
- Institute of Pharmacology and Toxicology, China
| | - Yuanyu Wu
- Institute of Pharmacology and Toxicology, China
| | - Jiannan Feng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, China
| | - Beifen Shen
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, China
| | | | - Yan Zhang
- Department of Obstetrics and Gynecology, First Medical Center, General Hospital of Chinese PLA, China
| | - Kaiming Yang
- School of Basic Medical Sciences of Dali University, China
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32
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Wen R, Zhao H, Zhang D, Chiu CL, Brooks JD. Sialylated glycoproteins as biomarkers and drivers of progression in prostate cancer. Carbohydr Res 2022; 519:108598. [DOI: 10.1016/j.carres.2022.108598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/20/2022] [Accepted: 05/20/2022] [Indexed: 01/27/2023]
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33
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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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34
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Mechanistic Insights into Immune Suppression and Evasion in Bacterial Vaginosis. Curr Microbiol 2022; 79:84. [PMID: 35128579 PMCID: PMC8818625 DOI: 10.1007/s00284-022-02771-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 01/18/2022] [Indexed: 12/25/2022]
Abstract
The immunological response to bacterial vaginosis (BV) remains poorly understood and recurrent BV is still a major public health burden especially in the pregnant population. This article reviews the potential mechanisms by which BV-associated bacteria suppress and circumvent the host and microbial defence responses, and propagate their survival/dominance without overt inflammation. We discuss the composition of cervicovaginal mucosal barrier and the mechanism by which BV circumvents host defence: the degradation of the mucosal barrier and immunoglobulin A (IgA); the BV-associated organism Gardnerella vaginalis haemolysin (vaginolysin); diminished IgA response against vaginolysin; mucosal sialic acid degradation, foraging and depletion; inhibition of IL-8-induced neutrophilic infiltration; and metabolite-induced incapacitation of neutrophil and monocyte chemotaxis. We also highlight the tolerance/resistance to both host and antimicrobial molecules mounted by BV-associated biofilms. A plausible role of sialic acid-binding immunoglobulin-like lectins (SIGLECS) was also suggested. Sialidase, which is often produced by G. vaginalis, is central to the immunosuppression, relapse and recurrence observed in BV, although it is supported by other hydrolytic enzymes, vaginolysin and immunomodulatory metabolites.
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35
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Nagao K, Maeda K, Hosomi K, Morioka K, Inuzuka T, Ohtsubo K. Sialyl-Tn antigen facilitates extracellular vesicle-mediated transfer of FAK and enhances motility of recipient cells. J Biochem 2022; 171:543-554. [PMID: 35106570 DOI: 10.1093/jb/mvac008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/18/2022] [Indexed: 11/14/2022] Open
Abstract
Protein glycosylation plays a pivotal role in tumor development by modulating molecular interactions and cellular signals. Sialyl-Tn (sTn) antigen is a tumor associating carbohydrate epitope whose expression correlates with metastasis and poor prognosis of various cancers; however, its pathophysiological function is poorly understood. Extracellular vesicles (EVs) derived from cancer cells act as a signal mediator among tumor microenvironments by transferring cargo molecules. sTn antigen has been found in the glycans of EVs, thereby the functional relevance of sTn antigen to the regulation of tumor microenvironments could be expected. In the present study, we showed that sTn antigen induced TP53 and tumor suppressor activated pathway 6 (TSAP6), and consequently enhanced EV-production. Besides, the genetic attenuation of TSAP6 resulted in the reduction of the EV-production in the sTn antigen expressing cells. The enhanced EV-production in the sTn antigen expressing cells consequently augmented the delivery of EVs to recipient cells. The produced EVs selectively and abundantly encased focal adhesion kinase and transferred it to EV-recipient cells, and thus their cellular motility was enhanced. These findings would contribute to facilitate the elucidation of the pathophysiological significance of the sTn antigen in the tumor microenvironments and tumor development.
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Affiliation(s)
- Keisuke Nagao
- Department of Analytical Biochemistry, Graduate school of health sciences, Kumamoto University, Kumamoto, Japan, 862-0976
| | - Kento Maeda
- Department of Analytical Biochemistry, Graduate school of health sciences, Kumamoto University, Kumamoto, Japan, 862-0976.,Department of Glyco-Oncology and Medical Biochemistry, Osaka International Cancer Institute, Osaka, Japan, 541-8567
| | - Kasumi Hosomi
- Department of Analytical Biochemistry, Graduate school of health sciences, Kumamoto University, Kumamoto, Japan, 862-0976
| | - Kaito Morioka
- Department of Analytical Biochemistry, Graduate school of health sciences, Kumamoto University, Kumamoto, Japan, 862-0976
| | | | - Kazuaki Ohtsubo
- Department of Analytical Biochemistry, Graduate school of health sciences, Kumamoto University, Kumamoto, Japan, 862-0976.,Department of Analytical Biochemistry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan, 862-0976
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36
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Tvaroška I. Glycosyltransferases as targets for therapeutic intervention in cancer and inflammation: molecular modeling insights. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-021-02026-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Sarmento MJ, Owen MC, Ricardo JC, Chmelová B, Davidović D, Mikhalyov I, Gretskaya N, Hof M, Amaro M, Vácha R, Šachl R. The impact of the glycan headgroup on the nanoscopic segregation of gangliosides. Biophys J 2021; 120:5530-5543. [PMID: 34798138 PMCID: PMC8715245 DOI: 10.1016/j.bpj.2021.11.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/26/2021] [Accepted: 11/10/2021] [Indexed: 01/04/2023] Open
Abstract
Gangliosides form an important class of receptor lipids containing a large oligosaccharide headgroup whose ability to self-organize within lipid membranes results in the formation of nanoscopic platforms. Despite their biological importance, the molecular basis for the nanoscopic segregation of gangliosides is not clear. In this work, we investigated the role of the ganglioside headgroup on the nanoscale organization of gangliosides. We studied the effect of the reduction in the number of sugar units of the ganglioside oligosaccharide chain on the ability of gangliosides GM1, GM2, and GM3 to spontaneously self-organize into lipid nanodomains. To reach nanoscopic resolution and to identify molecular forces that drive ganglioside segregation, we combined an experimental technique, Förster resonance energy transfer analyzed by Monte-Carlo simulations offering high lateral and trans-bilayer resolution with molecular dynamics simulations. We show that the ganglioside headgroup plays a key role in ganglioside self-assembly despite the negative charge of the sialic acid group. The nanodomains range from 7 to 120 nm in radius and are mostly composed of the surrounding bulk lipids, with gangliosides being a minor component of the nanodomains. The interactions between gangliosides are dominated by the hydrogen bonding network between the headgroups, which facilitates ganglioside clustering. The N-acetylgalactosamine sugar moiety of GM2, however, seems to impair the stability of these clusters by disrupting hydrogen bonding of neighboring sugars, which is in agreement with a broad size distribution of GM2 nanodomains. The simulations suggest that the formation of nanodomains is likely accompanied by several conformational changes in the gangliosides, which, however, have little impact on the solvent exposure of these receptor groups. Overall, this work identifies the key physicochemical factors that drive nanoscopic segregation of gangliosides.
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Affiliation(s)
- Maria J Sarmento
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Michael C Owen
- CEITEC - Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Institute of Chemistry, Faculty of Materials Science and Engineering, University of Miskolc, 3515 Miskolc, Hungary
| | - Joana C Ricardo
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Barbora Chmelová
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic; Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - David Davidović
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Ilya Mikhalyov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Science, Moscow Ul. Miklukho-Maklaya, Moscow 117997, Russia
| | - Natalia Gretskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Science, Moscow Ul. Miklukho-Maklaya, Moscow 117997, Russia
| | - Martin Hof
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Mariana Amaro
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Robert Vácha
- CEITEC - Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Radek Šachl
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic.
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38
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Rashid S, Song D, Yuan J, Mullin BH, Xu J. Molecular structure, expression, and the emerging role of Siglec-15 in skeletal biology and cancer. J Cell Physiol 2021; 237:1711-1719. [PMID: 34893976 DOI: 10.1002/jcp.30654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/12/2021] [Accepted: 11/18/2021] [Indexed: 12/25/2022]
Abstract
Siglec-15, a Siglec family member and type-1 transmembrane protein, is expressed mainly in human macrophages and dendritic cells. It is comprised of a lysine-containing transmembrane domain, two extracellular immunoglobulin (Ig)-like domains and a short cytoplasmic domain. Siglec-15 is highly conserved in vertebrates and acts as an immunoreceptor. It exerts diverse functions on osteoclast physiology as well as the tumor microenvironment. Siglec-15 interacts with adapter protein DAP12 - Syk signaling pathway to regulate the RANKL/RANK-mediated PI3K, AKT, and ERK signaling pathways during osteoclast formation in vitro. Consistently, the lack of the Siglec-15 gene in mice leads to impaired osteoclast activity and osteopetrosis in vivo. In addition, Siglec-15 is expressed by tumor-associated macrophages (TAMs) and regulates the tumor microenvironment by activating the SYK/MAPK signaling pathway. Interestingly, Siglec-15 shares sequence homology to programmed death-ligand 1 (PD-L1) and has a potential immune-regulatory role in cancer immunology. Thus, Siglec-15 might also represent an alternative target for the treatment of cancers that do not respond to anti-PD-L1/PD-1 immunotherapy. Understanding the role of Siglec-15 in osteoclastogenesis and the tumor microenvironment will help us to develop new treatments for bone disorders and cancer.
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Affiliation(s)
- Sarah Rashid
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Dezhi Song
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Jinbo Yuan
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Benjamin H Mullin
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Jiake Xu
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
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39
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Hitchcock CL, Povoski SP, Mojzisik CM, Martin EW. Survival Advantage Following TAG-72 Antigen-Directed Cancer Surgery in Patients With Colorectal Carcinoma: Proposed Mechanisms of Action. Front Oncol 2021; 11:731350. [PMID: 34950576 PMCID: PMC8688248 DOI: 10.3389/fonc.2021.731350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 10/25/2021] [Indexed: 12/09/2022] Open
Abstract
Patients with colorectal carcinoma (CRC) continue to have variable clinical outcomes despite undergoing the same surgical procedure with curative intent and having the same pathologic and clinical stage. This problem suggests the need for better techniques to assess the extent of disease during surgery. We began to address this problem 35 years ago by injecting patients with either primary or recurrent CRC with 125I-labeled murine monoclonal antibodies against the tumor-associated glycoprotein-72 (TAG-72) and using a handheld gamma-detecting probe (HGDP) for intraoperative detection and removal of radioactive, i.e., TAG-72-positive, tissue. Data from these studies demonstrated a significant difference in overall survival data (p < 0.005 or better) when no TAG-72-positive tissue remained compared to when TAG-72-positive tissue remained at the completion of surgery. Recent publications indicate that aberrant glycosylation of mucins and their critical role in suppressing tumor-associated immune response help to explain the cellular mechanisms underlying our results. We propose that monoclonal antibodies to TAG-72 recognize and bind to antigenic epitopes on mucins that suppress the tumor-associated immune response in both the tumor and tumor-draining lymph nodes. Complete surgical removal of all TAG-72-positive tissue serves to reverse the escape phase of immunoediting, allowing a resetting of this response that leads to improved overall survival of the patients with either primary or recurrent CRC. Thus, the status of TAG-72 positivity after resection has a significant impact on patient survival.
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Affiliation(s)
- Charles L. Hitchcock
- Department of Pathology, College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Stephen P. Povoski
- Division of Surgical Oncology, Department of Surgery, College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Cathy M. Mojzisik
- Division of Surgical Oncology, Department of Surgery, College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Edward W. Martin
- Division of Surgical Oncology, Department of Surgery, College of Medicine, The Ohio State University, Columbus, OH, United States
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40
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Choi H, Ho M, Adeniji OS, Giron L, Bordoloi D, Kulkarni AJ, Puchalt AP, Abdel-Mohsen M, Muthumani K. Development of Siglec-9 Blocking Antibody to Enhance Anti-Tumor Immunity. Front Oncol 2021; 11:778989. [PMID: 34869028 PMCID: PMC8640189 DOI: 10.3389/fonc.2021.778989] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Sialic acid-binding Immunoglobulin-like lectin-9 (Siglec-9) is a glyco-immune negative checkpoint expressed on several immune cells. Siglec-9 exerts its inhibitory effects by binding to sialoglycan ligands expressed on cancer cells, enabling them to evade immunosurveillance. We developed a panel of human anti-Siglec-9 hybridoma clones by immunizing mice with Siglec-9-encoding DNA and Siglec-9 protein. The lead antibodies, with high specificity and functionality against Siglec-9, were identified through screening of clones. The in vitro cytotoxicity assays showed that our lead antibody enhances anti-tumor immune activity. Further, in vivo testing utilizing ovarian cancer humanized mouse model showed a drastic reduction in tumor volume. Together, we developed novel antibodies that augment anti-tumor immunity through interference with Siglec-9-mediated immunosuppression.
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Affiliation(s)
- Hyeree Choi
- Vaccine & Immunotherapy Center, The Wistar Institute, Philadelphia, PA, United States
| | - Michelle Ho
- Vaccine & Immunotherapy Center, The Wistar Institute, Philadelphia, PA, United States
| | - Opeyemi S Adeniji
- Vaccine & Immunotherapy Center, The Wistar Institute, Philadelphia, PA, United States
| | - Leila Giron
- Vaccine & Immunotherapy Center, The Wistar Institute, Philadelphia, PA, United States
| | - Devivasha Bordoloi
- Vaccine & Immunotherapy Center, The Wistar Institute, Philadelphia, PA, United States
| | - Abhijeet J Kulkarni
- Vaccine & Immunotherapy Center, The Wistar Institute, Philadelphia, PA, United States
| | | | - Mohamed Abdel-Mohsen
- Vaccine & Immunotherapy Center, The Wistar Institute, Philadelphia, PA, United States
| | - Kar Muthumani
- Vaccine & Immunotherapy Center, The Wistar Institute, Philadelphia, PA, United States
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41
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Moorlag SJCFM, Matzaraki V, van Puffelen JH, van der Heijden C, Keating S, Groh L, Röring RJ, Bakker OB, Koeken VACM, de Bree LCJ, Smeekens SP, Oosting M, Gamboa RA, Riksen NP, Xavier RJ, Wijmenga C, Kumar V, van Crevel R, Novakovic B, Joosten LAB, Li Y, Netea MG. An integrative genomics approach identifies KDM4 as a modulator of trained immunity. Eur J Immunol 2021; 52:431-446. [PMID: 34821391 PMCID: PMC9299854 DOI: 10.1002/eji.202149577] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 09/29/2021] [Accepted: 11/19/2021] [Indexed: 01/21/2023]
Abstract
Innate immune cells are able to build memory characteristics via a process termed “trained immunity.” Host factors that influence the magnitude of the individual trained immunity response remain largely unknown. Using an integrative genomics approach, our study aimed to prioritize and understand the role of specific genes in trained immunity responses. In vitro‐induced trained immunity responses were assessed in two independent population‐based cohorts of healthy individuals, the 300 Bacillus Calmette‐Guérin (300BCG; n = 267) and 200 Functional Genomics (200FG; n = 110) cohorts from the Human Functional Genomics Project. Genetic loci that influence cytokine responses upon trained immunity were identified by conducting a meta‐analysis of QTLs identified in the 300BCG and 200FG cohorts. From the identified QTL loci, we functionally validated the role of PI3K‐Akt signaling pathway and two genes that belong to the family of Siglec receptors (Siglec‐5 and Siglec‐14). Furthermore, we identified the H3K9 histone demethylases of the KDM4 family as major regulators of trained immunity responses. These data pinpoint an important role of metabolic and epigenetic processes in the regulation of trained immunity responses, and these findings may open new avenues for vaccine design and therapeutic interventions.
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Affiliation(s)
- Simone J C F M Moorlag
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Vasiliki Matzaraki
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jelmer H van Puffelen
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Charlotte van der Heijden
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Sam Keating
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Laszlo Groh
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Rutger Jan Röring
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Olivier B Bakker
- Department of Genetics, University Medical Center Groningen, University of Groningenor, Groningen, The Netherlands
| | - Valerie A C M Koeken
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - L Charlotte J de Bree
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Research Center for Vitamins and Vaccines, Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark.,Odense Patient Data Explorative Network, University of Southern Denmark/Odense University Hospital, Odense, Denmark
| | - Sanne P Smeekens
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marije Oosting
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Raúl Aguirre Gamboa
- Department of Genetics, University Medical Center Groningen, University of Groningenor, Groningen, The Netherlands
| | - Niels P Riksen
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ramnik J Xavier
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Cisca Wijmenga
- Department of Genetics, University Medical Center Groningen, University of Groningenor, Groningen, The Netherlands.,K.G. Jebsen Coeliac Disease Research Centre, Department of Immunology, University of Oslo, Norway
| | - Vinod Kumar
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Genetics, University Medical Center Groningen, University of Groningenor, Groningen, The Netherlands
| | - Reinout van Crevel
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Boris Novakovic
- Epigenetics, Murdoch Children's Research Institute, Royal Children's Hospital, and Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - Leo A B Joosten
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Yang Li
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Computational Biology for Individualised Infection Medicine, Centre for Individualised Infection Medicine, Helmholtz Centre for Infection Research, Hannover Medical School, Hannover, Germany
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Department for Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
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42
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Sigal DS, Hermel DJ, Hsu P, Pearce T. The role of Globo H and SSEA-4 in the development and progression of cancer, and their potential as therapeutic targets. Future Oncol 2021; 18:117-134. [PMID: 34734786 DOI: 10.2217/fon-2021-1110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Glycans, chains of sugar molecules found conjugated to cell proteins and lipids, contribute to their growth, movement and differentiation. Aberrant glycosylation is a hallmark of several medical conditions including tumorigenesis. Glycosphingolipids (GSLs), consisting of glycans conjugated to a lipid (ceramide) core, are found in the lipid bilayer of eukaryotic cell membranes. GSLs, play an active role in cell processes. Several GSLs are expressed by human embryonic stem cells and have been found to be overexpressed in several types of cancer. In this review, we discuss the data, hypotheses and perspectives related to the GSLs Globo H and SSEA-4.
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Affiliation(s)
- Darren S Sigal
- Director, GI Oncology, Scripps Clinic & Scripps MD Anderson Cancer Center, 10710 N Torrey Pines Road, La Jolla, CA 92037, USA
| | - David J Hermel
- Scripps Clinic & Scripps MD Anderson Cancer Center, 10710 N Torrey Pines Road, LA Jolla, CA 92037, USA
| | - Pei Hsu
- Medical Advisor, Medical Affairs & Clinical Development, OBI Pharma Inc. 7F, No. 369, Zhongxiao E Road, Nangang District, Taipei City, 115, Taiwan
| | - Tillman Pearce
- Chief Medical Officer, OBI Pharma USA Inc., 6020 Cornerstone Court W, Suite 200, San Diego, CA 92121, USA
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43
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Karmakar J, Mukherjee K, Mandal C. Siglecs Modulate Activities of Immune Cells Through Positive and Negative Regulation of ROS Generation. Front Immunol 2021; 12:758588. [PMID: 34804046 PMCID: PMC8595208 DOI: 10.3389/fimmu.2021.758588] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 10/18/2021] [Indexed: 12/13/2022] Open
Abstract
Reactive oxygen species (ROS) are a group of oxygen-containing highly-reactive molecules produced from oxidative metabolic processes or in response to intracellular signals like cytokines and external stimuli like pathogen attack. They regulate a range of physiological processes and are involved in innate immune responses against infectious agents. Deregulation of ROS contributes to a plethora of disease conditions. Sialic acids are carbohydrates, present on cell surfaces or soluble proteins. Sialic acid-binding immunoglobulin-like lectins (Siglecs) recognize and bind to sialic acids. These are widely expressed on various types of immune cells. Siglecs modulate immune activation and can promote or inhibit ROS generation under different contexts. Siglecs promote ROS-dependent cell death in neutrophils and eosinophils while limiting oxidative stress associated with chronic obstructive pulmonary disease (COPD), sickle cell disease (SCD), coronavirus disease-2019 (COVID-19), etc. This review distinguishes itself in summarizing the current understanding of the role of Siglecs in moderating ROS production and their distinct effect on different immune cells; that ultimately determine the cellular response and the disease outcome. This is an important field of investigation having scope for both expansion and medical importance.
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Affiliation(s)
| | | | - Chitra Mandal
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India
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44
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He W, Wu L, Li S, Guo S. Transcriptome RNA-seq revealed lncRNAs activated by Edwardsiella anguillarum post the immunization of OmpA protecting European eel (Anguilla anguilla) from being infected. FISH & SHELLFISH IMMUNOLOGY 2021; 118:51-65. [PMID: 34474148 DOI: 10.1016/j.fsi.2021.08.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 08/23/2021] [Accepted: 08/29/2021] [Indexed: 05/26/2023]
Abstract
Long noncoding RNAs (lncRNAs) play important roles in various biological activities as vital regulators. However, no study has focused on the lncRNA regulation of Outer membrane protein (OMP) immunization against aquatic bacterial infection. In this study, we examined the genome-wide expression of lncRNAs in the liver of European eel (Anguilla anguilla, Aa) administrated by a recombinant OmpA (rOmpA) from Edwardsiella anguillarum (Ea) to elucidate the functions of lncRNAs in the process of Ea infection and Aa anti-Ea infection using strand specific RNA-seq. Eels were challenged by Ea at 28 d post the immunization (dpi) of OmpA, and the result showed, compared to uninfected livers in the PBS group (Con group), the infected livers in the PBS group (Con_inf group) showed severe bleeding, hepatocyte atrophy and thrombi formed in the hepatic vessels; livers in the OmpA group (OmpA_inf) also formed slight thrombi in the hepatic vessels. The relative percent survival of eels in OmpA_inf vs Con_inf was 78.6%. Using high-throughput transcriptomics, we found 13405 lncRNAs in 3 compares of Con_inf vs Con, OmpA_inf vs Con and OmpA_inf vs Con_inf, of which 111, 129 and 158 DE-lncRNAs were ascertained. GO analysis of the DE-lncRNAs revealed the targeting DEGs were mainly involved in single-organism process, signaling, biological process and response to stimulus in BP, component of membrane in CC and binding in MF; KEGG pathways showed that the targeting DEGs in co-expression and co-location enriched in cell adhesion molecules. Finally, 54 DE-lncRNAs targeting 1675 DEGs were involved in an interaction network of 21692 co-expression and 483 co-location related links, of which 18 DE-lncRNAs appear to play crucial roles in anti-Ea infection. Thus, the interaction networks revealed crucial DE-lncRNAs underlying the process of Ea infection and Aa anti-Ea infection pre and post the immunization of OmpA.
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Affiliation(s)
- Wenxuan He
- Fisheries College, Jimei University /Engineering Research Center of the Modern Industry Technology for Eel. Ministry of Education of PRC, Xiamen, 361021, China
| | - Liqun Wu
- College of Overseas Education, Jimei University, Xiamen, 361021, China
| | - Senlin Li
- Fisheries College, Jimei University /Engineering Research Center of the Modern Industry Technology for Eel. Ministry of Education of PRC, Xiamen, 361021, China
| | - Songlin Guo
- Fisheries College, Jimei University /Engineering Research Center of the Modern Industry Technology for Eel. Ministry of Education of PRC, Xiamen, 361021, China.
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45
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McDermott M, Cerullo AR, Parziale J, Achrak E, Sultana S, Ferd J, Samad S, Deng W, Braunschweig AB, Holford M. Advancing Discovery of Snail Mucins Function and Application. Front Bioeng Biotechnol 2021; 9:734023. [PMID: 34708024 PMCID: PMC8542881 DOI: 10.3389/fbioe.2021.734023] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/06/2021] [Indexed: 01/12/2023] Open
Abstract
Mucins are a highly glycosylated protein family that are secreted by animals for adhesion, hydration, lubrication, and other functions. Despite their ubiquity, animal mucins are largely uncharacterized. Snails produce mucin proteins in their mucous for a wide array of biological functions, including microbial protection, adhesion and lubrication. Recently, snail mucins have also become a lucrative source of innovation with wide ranging applications across chemistry, biology, biotechnology, and biomedicine. Specifically, snail mucuses have been applied as skin care products, wound healing agents, surgical glues, and to combat gastric ulcers. Recent advances in integrated omics (genomic, transcriptomic, proteomic, glycomic) technologies have improved the characterization of gastropod mucins, increasing the generation of novel biomaterials. This perspective describes the current research on secreted snail mucus, highlighting the potential of this biopolymer, and also outlines a research strategy to fulfill the unmet need of examining the hierarchical structures that lead to the enormous biological and chemical diversity of snail mucus genes.
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Affiliation(s)
- Maxwell McDermott
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States
| | - Antonio R Cerullo
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States
| | - James Parziale
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States
| | - Eleonora Achrak
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States
| | - Sharmin Sultana
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States
| | - Jennifer Ferd
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States
| | - Safiyah Samad
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States
| | - William Deng
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States
| | - Adam B Braunschweig
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States.,Advanced Science Research Center, Graduate Center of New York, Graduate Department of Biochemistry, New York, NY, United States.,PhD Programs in Biochemistry and Chemistry Graduate Center of the City University of New York, New York, NY, United States
| | - Mandë Holford
- Department of Chemistry and Biochemistry, Hunter College, New York, NY, United States.,PhD Programs in Biochemistry and Chemistry Graduate Center of the City University of New York, New York, NY, United States.,PhD Program in Biology Graduate Center of the City University of New York, New York, NY, United States.,Department of Invertebrate Zoology, The American Museum of Natural History, New York, NY, United States
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46
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Jarahian M, Marofi F, Maashi MS, Ghaebi M, Khezri A, Berger MR. Re-Expression of Poly/Oligo-Sialylated Adhesion Molecules on the Surface of Tumor Cells Disrupts Their Interaction with Immune-Effector Cells and Contributes to Pathophysiological Immune Escape. Cancers (Basel) 2021; 13:5203. [PMID: 34680351 PMCID: PMC8534074 DOI: 10.3390/cancers13205203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 12/28/2022] Open
Abstract
Glycans linked to surface proteins are the most complex biological macromolecules that play an active role in various cellular mechanisms. This diversity is the basis of cell-cell interaction and communication, cell growth, cell migration, as well as co-stimulatory or inhibitory signaling. Our review describes the importance of neuraminic acid and its derivatives as recognition elements, which are located at the outermost positions of carbohydrate chains linked to specific glycoproteins or glycolipids. Tumor cells, especially from solid tumors, mask themselves by re-expression of hypersialylated neural cell adhesion molecule (NCAM), neuropilin-2 (NRP-2), or synaptic cell adhesion molecule 1 (SynCAM 1) in order to protect themselves against the cytotoxic attack of the also highly sialylated immune effector cells. More particularly, we focus on α-2,8-linked polysialic acid chains, which characterize carrier glycoproteins such as NCAM, NRP-2, or SynCam-1. This characteristic property correlates with an aggressive clinical phenotype and endows them with multiple roles in biological processes that underlie all steps of cancer progression, including regulation of cell-cell and/or cell-extracellular matrix interactions, as well as increased proliferation, migration, reduced apoptosis rate of tumor cells, angiogenesis, and metastasis. Specifically, re-expression of poly/oligo-sialylated adhesion molecules on the surface of tumor cells disrupts their interaction with immune-effector cells and contributes to pathophysiological immune escape. Further, sialylated glycoproteins induce immunoregulatory cytokines and growth factors through interactions with sialic acid-binding immunoglobulin-like lectins. We describe the processes, which modulate the interaction between sialylated carrier glycoproteins and their ligands, and illustrate that sialic acids could be targets of novel therapeutic strategies for treatment of cancer and immune diseases.
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Affiliation(s)
- Mostafa Jarahian
- German Cancer Research Center, Toxicology and Chemotherapy Unit Heidelberg, 69120 Heidelberg, Germany;
| | - Faroogh Marofi
- Department of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran;
| | - Marwah Suliman Maashi
- Stem Cells and Regenerative Medicine Unit at King Fahad Medical Research Centre, Jeddah 11211, Saudi Arabia;
| | - Mahnaz Ghaebi
- Cancer Gene Therapy Research Center (CGRC), Zanjan University of Medical Sciences, Zanjan 4513956184, Iran;
| | - Abdolrahman Khezri
- Department of Biotechnology, Inland Norway University of Applied Sciences, 2418 Hamar, Norway;
| | - Martin R. Berger
- German Cancer Research Center, Toxicology and Chemotherapy Unit Heidelberg, 69120 Heidelberg, Germany;
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47
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Regulation of prognosis-related Siglecs in the glioma microenvironment. J Cancer Res Clin Oncol 2021; 147:3343-3357. [PMID: 34472004 DOI: 10.1007/s00432-021-03762-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/09/2021] [Indexed: 12/21/2022]
Abstract
PURPOSE The anti-inflammatory environment of glioma reduces the efficacy of immunotherapies. Therefore, it is vital to transform the immunosuppressive microenvironment of glioma into a pro-inflammatory environment. Sialic acid-binding immunoglobulin-type lectins (Siglecs) can serve as immune checkpoint targets that enhance the anti-tumor immune response. However, the roles of Siglecs in the glioma microenvironment are unknown. This study was conducted to identify targets to inhibit the anti-inflammatory environment to improve therapeutic outcomes in patients with glioma. METHODS We analyzed the regulatory effect of prognosis-related Siglecs identified from data available in The Cancer Genome Atlas database (TCGA) and China Glioma Genome Atlas Data portal on the immunosuppressive microenvironment of glioma. The effects of prognosis-related Siglecs on the glioma microenvironment were investigated by determining the Pearson correlation coefficients of the Siglecs in transcriptome data from the TCGA database. RESULTS Siglec-1, -9, -10, and -14 were closely associated with the prognosis of patients with glioma. The expression of these four Siglecs was significantly increased in the high-risk group and positively correlated with anti-inflammatory cytokine levels in the glioma microenvironment. CONCLUSION Our study provides insights into the effects of prognosis-related Siglecs in glioma immunotherapy, suggesting that targeted prognosis-related Siglecs can modify the microenvironment of glioma and improve the sensitivity of patients with glioma to immunotherapy.
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48
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Hong S, Yu C, Rodrigues E, Shi Y, Chen H, Wang P, Chapla DG, Gao T, Zhuang R, Moremen KW, Paulson JC, Macauley MS, Wu P. Modulation of Siglec-7 Signaling Via In Situ-Created High-Affinity cis-Ligands. ACS CENTRAL SCIENCE 2021; 7:1338-1346. [PMID: 34471678 PMCID: PMC8393205 DOI: 10.1021/acscentsci.1c00064] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Indexed: 05/04/2023]
Abstract
Sialic acid-binding immunoglobulin-like lectins, also known as Siglecs, have recently been designated as glyco-immune checkpoints. Through their interactions with sialylated glycan ligands overexpressed on tumor cells, inhibitory Siglecs on innate and adaptive immune cells modulate signaling cascades to restrain anti-tumor immune responses. However, the elucidation of the mechanisms underlying these processes is just beginning. We find that when human natural killer (NK) cells attack tumor cells, glycan remodeling occurs on the target cells at the immunological synapse. This remodeling occurs through both the transfer of sialylated glycans from NK cells to target tumor cells and the accumulation of de novo synthesized sialosides on the tumor cells. The functionalization of NK cells with a high-affinity ligand of Siglec-7 leads to multifaceted consequences in modulating a Siglec-7-regulated NK-activation. At high levels of ligand, an enzymatically added Siglec-7 ligand suppresses NK cytotoxicity through the recruitment of Siglec-7 to an immune synapse, whereas at low levels of ligand an enzymatically added Siglec-7 ligand triggers the release of Siglec-7 from the cell surface into the culture medium, preventing a Siglec-7-mediated inhibition of NK cytotoxicity. These results suggest that a glycan engineering of NK cells may provide a means to boost NK effector functions for related applications.
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Affiliation(s)
- Senlian Hong
- State
Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology
Center, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Chenhua Yu
- Department of Molecular Medicine, Department of Immunology
and Microbiology, The Scripps Research Institute, La Jolla 92037, California, United States
- Tianjin
Medical University Cancer Institute and Hospital, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin 300060, China
| | - Emily Rodrigues
- Department of Chemistry, Department of Medical
Microbiology and Immunology, University
of Alberta, 11227 Saskatchewan Drive NW, Edmonton AB T6G 2G2, Alberta, Canada
| | - Yujie Shi
- Department of Molecular Medicine, Department of Immunology
and Microbiology, The Scripps Research Institute, La Jolla 92037, California, United States
| | - Hongmin Chen
- State
Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology
Center, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Peng Wang
- Department of Molecular Medicine, Department of Immunology
and Microbiology, The Scripps Research Institute, La Jolla 92037, California, United States
| | - Digantkumar G. Chapla
- Complex
Carbohydrate Research Center, University
of Georgia, Athens, Georgia 30602, United States
| | - Tao Gao
- State
Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology
Center, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ruoxuan Zhuang
- State
Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology
Center, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Kelley W. Moremen
- Complex
Carbohydrate Research Center, University
of Georgia, Athens, Georgia 30602, United States
| | - James C. Paulson
- Department of Molecular Medicine, Department of Immunology
and Microbiology, The Scripps Research Institute, La Jolla 92037, California, United States
| | - Matthew S. Macauley
- Department of Chemistry, Department of Medical
Microbiology and Immunology, University
of Alberta, 11227 Saskatchewan Drive NW, Edmonton AB T6G 2G2, Alberta, Canada
| | - Peng Wu
- Department of Molecular Medicine, Department of Immunology
and Microbiology, The Scripps Research Institute, La Jolla 92037, California, United States
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49
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Fan MK, Zhang GC, Chen W, Qi LL, Xie MF, Zhang YY, Wang L, Zhang Q. Siglec-15 Promotes Tumor Progression in Osteosarcoma via DUSP1/MAPK Pathway. Front Oncol 2021; 11:710689. [PMID: 34336699 PMCID: PMC8322944 DOI: 10.3389/fonc.2021.710689] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/01/2021] [Indexed: 12/30/2022] Open
Abstract
Recurrence and metastasis are important features of osteosarcoma (OS) that cause its poor prognosis. Aberrant expression of Sialic acid-binding immunoglobulin-like lectin 15 (Siglec-15) has been reported in various kinds of cancers. However, the expression and function of Siglec-15 in OS remain unclear. In cultured OS cells (143B cells and MNNG/HOS cells) and their xenograft mouse models, we found that downregulation of Siglec-15 could inhibit the proliferation, migration and invasion of by inducing epithelial-mesenchymal transition (EMT) in vitro and in vivo. Conversely, Siglec-15 overexpression promoted the growth, migration and invasion of OS cells in a significant manner. Then, we screened a number of differentially expressed genes (DEGs) between Siglec-15-knockdown group and control group by RNA-Seq assay. Among these DEGs, we found that dual-specificity phosphatase 1 (DUSP1/MKP1) was significantly downregulated after Siglec-15 silencing. We investigated the DUSP1 functions in influencing OS cells’ biology, and found that the proliferation, migration and invasion of OS cells were promoted by overexpressing DUSP1 and crucially, the proliferation, migration and invasion of Siglec-15-knockdown OS cells were rescued by overexpressing DUSP1. Mechanically, we further showed that DUSP1-mediated inhibition of p38/MAPK and JNK/MAPK expression was attenuated when Siglec-15 expression was inhibited, suggesting that Siglec-15 promotes the malignant progression of OS cells by suppressing DUSP1-mediated suppression of the MAPK pathway. Moreover, we showed that both Siglec-15 and DUSP1 were highly expressed in human OS tissues by immunohistochemistry. High Siglec-15 expression was associated with OS lung metastasis, and high DUSP1 expression was associated with the high Enneking stage. Kaplan–Meier analysis indicated that high expression of Siglec-15 could predict poor prognosis of OS patients. Altogether, these results showed that Siglec-15 expression promoted OS development and progression by activating DUSP1 and might be a novel target in OS treatment.
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Affiliation(s)
- Meng-Ke Fan
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Guo-Chuan Zhang
- Department of Orthopedic Oncology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wei Chen
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Li-Li Qi
- Department of Pathogenic Biology, Hebei Medical University, Shijiazhuang, China
| | - Ming-Fang Xie
- Department of Orthopedic Oncology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yue-Yao Zhang
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ling Wang
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, China.,Department of Orthopedic Oncology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Qi Zhang
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, China
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50
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Giamougiannis P, Martin-Hirsch PL, Martin FL. The evolving role of MUC16 (CA125) in the transformation of ovarian cells and the progression of neoplasia. Carcinogenesis 2021; 42:327-343. [PMID: 33608706 DOI: 10.1093/carcin/bgab010] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/19/2021] [Accepted: 02/15/2021] [Indexed: 12/23/2022] Open
Abstract
MUC16 (the cancer antigen CA125) is the most commonly used serum biomarker in epithelial ovarian cancer, with increasing levels reflecting disease progression. It is a transmembrane glycoprotein with multiple isoforms, undergoing significant changes through the metastatic process. Aberrant glycosylation and cleavage with overexpression of a small membrane-bound fragment consist MUC16-related mechanisms that enhance malignant potential. Even MUC16 knockdown can induce an aggressive phenotype but can also increase susceptibility to chemotherapy. Variable MUC16 functions help ovarian cancer cells avoid immune cytotoxicity, survive inside ascites and form metastases. This review provides a comprehensive insight into MUC16 transformations and interactions, with description of activated oncogenic signalling pathways, and adds new elements on the role of its differential glycosylation. By following the journey of the molecule from pre-malignant states to advanced stages of disease it demonstrates its behaviour, in relation to the phenotypic shifts and progression of ovarian cancer. Additionally, it presents proposed differences of MUC16 structure in normal/benign conditions and epithelial ovarian malignancy.
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Affiliation(s)
- Panagiotis Giamougiannis
- Department of Gynaecological Oncology, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK.,School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, UK
| | - Pierre L Martin-Hirsch
- Department of Gynaecological Oncology, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK.,Division of Cancer Sciences, University of Manchester, Manchester, UK
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