1
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Peter AS, Hoffmann DS, Klier J, Lange CM, Moeller J, Most V, Wüst CK, Beining M, Gülesen S, Junker H, Brumme B, Schiffner T, Meiler J, Schoeder CT. Strategies of rational and structure-driven vaccine design for Arenaviruses. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2024; 123:105626. [PMID: 38908736 DOI: 10.1016/j.meegid.2024.105626] [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: 02/21/2024] [Revised: 04/16/2024] [Accepted: 06/18/2024] [Indexed: 06/24/2024]
Abstract
The COVID-19 outbreak has highlighted the importance of pandemic preparedness for the prevention of future health crises. One virus family with high pandemic potential are Arenaviruses, which have been detected almost worldwide, particularly in Africa and the Americas. These viruses are highly understudied and many questions regarding their structure, replication and tropism remain unanswered, making the design of an efficacious and molecularly-defined vaccine challenging. We propose that structure-driven computational vaccine design will contribute to overcome these challenges. Computational methods for stabilization of viral glycoproteins or epitope focusing have made progress during the last decades and particularly during the COVID-19 pandemic, and have proven useful for rational vaccine design and the establishment of novel diagnostic tools. In this review, we summarize gaps in our understanding of Arenavirus molecular biology, highlight challenges in vaccine design and discuss how structure-driven and computationally informed strategies will aid in overcoming these obstacles.
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Affiliation(s)
- Antonia Sophia Peter
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany
| | - Dieter S Hoffmann
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany
| | - Johannes Klier
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany
| | - Christina M Lange
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany
| | - Johanna Moeller
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany; Center for Scalable Data Analytics and Artificial Intelligence ScaDS.AI, Dresden/Leipzig, Germany
| | - Victoria Most
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany
| | - Christina K Wüst
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany; Molecular Medicine Studies, Faculty for Biology and Preclinical Medicine, University of Regensburg, Regensburg, Germany
| | - Max Beining
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany; SECAI, School of Embedded Composite Artificial Intelligence, Dresden/Leipzig, Germany
| | - Sevilay Gülesen
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany
| | - Hannes Junker
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany
| | - Birke Brumme
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany
| | - Torben Schiffner
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany; The Scripps Research Institute, Department for Immunology and Microbiology, La Jolla, CA, United States
| | - Jens Meiler
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany; Center for Scalable Data Analytics and Artificial Intelligence ScaDS.AI, Dresden/Leipzig, Germany; Department of Chemistry, Vanderbilt University, Nashville, TN, United States; Center for Structural Biology, Vanderbilt University, Nashville, TN, United States
| | - Clara T Schoeder
- Institute for Drug Discovery, Leipzig University, Faculty of Medicine, Leipzig, Germany; Center for Scalable Data Analytics and Artificial Intelligence ScaDS.AI, Dresden/Leipzig, Germany.
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2
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Delaunay C, Pollastri S, Thépaut M, Cavazzoli G, Belvisi L, Bouchikri C, Labiod N, Lasala F, Gimeno A, Franconetti A, Jiménez-Barbero J, Ardá A, Delgado R, Bernardi A, Fieschi F. Unprecedented selectivity for homologous lectin targets: differential targeting of the viral receptors L-SIGN and DC-SIGN. Chem Sci 2024:d4sc02980a. [PMID: 39246372 PMCID: PMC11376147 DOI: 10.1039/d4sc02980a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 08/13/2024] [Indexed: 09/10/2024] Open
Abstract
DC-SIGN (CD209) and L-SIGN (CD209L) are two C-type lectin receptors (CLRs) that facilitate SARS-CoV-2 infections as viral co-receptors. SARS-CoV-2 manipulates both DC-SIGN and L-SIGN for enhanced infection, leading to interest in developing receptor antagonists. Despite their structural similarity (82% sequence identity), they function differently. DC-SIGN, found in dendritic cells, shapes the immune response by recognizing pathogen-associated carbohydrate patterns. In contrast, L-SIGN, expressed in airway epithelial endothelial cells, is not directly involved in immunity. COVID-19's primary threat is the hyperactivation of the immune system, potentially reinforced if DC-SIGN engages with exogenous ligands. Therefore, L-SIGN, co-localized with ACE2-expressing cells in the respiratory tract, is a more suitable target for anti-adhesion therapy. However, designing a selective ligand for L-SIGN is challenging due to the high sequence identity of the Carbohydrate Recognition Domains (CRDs) of the two lectins. We here present Man84, a mannose ring modified with a methylene guanidine triazole at position 2. It binds L-SIGN with a K D of 12.7μM ± 1 μM (ITC) and is the first known L-SIGN selective ligand, showing 50-fold selectivity over DC-SIGN (SPR). The X-ray structure of the L-SIGN CRD/Man84 complex reveals the guanidinium group's role in achieving steric and electrostatic complementarity with L-SIGN. This allows us to trace the source of selectivity to a single amino acid difference between the two CRDs. NMR analysis confirms the binding mode in solution, highlighting Man84's conformational selection upon complex formation. Dimeric versions of Man84 achieve additional selectivity and avidity in the low nanomolar range. These compounds selectively inhibit L-SIGN dependent trans-infection by SARS-CoV-2 and Ebola virus. Man84 and its dimeric constructs display the best affinity and avidity reported to date for low-valency glycomimetics targeting CLRs. They are promising tools for competing with SARS-CoV-2 anchoring in the respiratory tract and have potential for other medical applications.
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Affiliation(s)
- Clara Delaunay
- Université Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale Grenoble France
| | - Sara Pollastri
- Università degli Studi di Milano, Dipartimento di Chimica via Golgi 19 Milano Italy
| | - Michel Thépaut
- Université Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale Grenoble France
| | - Gianluca Cavazzoli
- Università degli Studi di Milano, Dipartimento di Chimica via Golgi 19 Milano Italy
| | - Laura Belvisi
- Università degli Studi di Milano, Dipartimento di Chimica via Golgi 19 Milano Italy
| | - Clémentine Bouchikri
- Université Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale Grenoble France
| | - Nuria Labiod
- Instituto de Investigacion Hospital Universitario 12 de Octubre, Universidad Complutense, School of Medicine Madrid Spain
| | - Fatima Lasala
- Instituto de Investigacion Hospital Universitario 12 de Octubre, Universidad Complutense, School of Medicine Madrid Spain
| | - Ana Gimeno
- Chemical Glycobiology Lab, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA) 48160 Derio Bizkaia Spain
| | - Antonio Franconetti
- Chemical Glycobiology Lab, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA) 48160 Derio Bizkaia Spain
| | - Jesús Jiménez-Barbero
- Chemical Glycobiology Lab, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA) 48160 Derio Bizkaia Spain
- Ikerbasque, Basque Foundation for Science Bilbao Spain
- Centro de Investigacion Biomedica En Red de Enfermedades Respiratorias 28029 Madrid Spain
| | - Ana Ardá
- Chemical Glycobiology Lab, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA) 48160 Derio Bizkaia Spain
- Ikerbasque, Basque Foundation for Science Bilbao Spain
| | - Rafael Delgado
- Instituto de Investigacion Hospital Universitario 12 de Octubre, Universidad Complutense, School of Medicine Madrid Spain
- School of Medicine, Universidad Complutense Madrid Spain
| | - Anna Bernardi
- Università degli Studi di Milano, Dipartimento di Chimica via Golgi 19 Milano Italy
| | - Franck Fieschi
- Université Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale Grenoble France
- Institut Universitaire de France (IUF) Paris France
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3
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Ning X, Budhadev D, Pollastri S, Nehlmeier I, Kempf A, Manfield I, Turnbull WB, Pöhlmann S, Bernardi A, Li X, Guo Y, Zhou D. Polyvalent Glycomimetic-Gold Nanoparticles Revealing Critical Roles of Glycan Display on Multivalent Lectin-Glycan Interaction Biophysics and Antiviral Properties. JACS AU 2024; 4:3295-3309. [PMID: 39211605 PMCID: PMC11350578 DOI: 10.1021/jacsau.4c00610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 08/04/2024] [Accepted: 08/07/2024] [Indexed: 09/04/2024]
Abstract
Multivalent lectin-glycan interactions (MLGIs) are widespread and vital for biology, making them attractive therapeutic targets. Unfortunately, the structural and biophysical mechanisms of several key MLGIs remain poorly understood, limiting our ability to design spatially matched glycoconjugates as potential therapeutics against specific MLGIs. We have recently demonstrated that natural oligomannose-coated nanoparticles are powerful probes for MLGIs. They can provide not only quantitative affinity and binding thermodynamic data but also key structural information (e.g, binding site orientation and mode) useful for designing glycoconjugate therapeutics against specific MLGIs. Despite success, how designing parameters (e.g., glycan type, density, and scaffold size) control their MLGI biophysical and antiviral properties remains to be elucidated. A synthetic pseudodimannose (psDiMan) ligand has been shown to selectively bind to a dendritic cell surface tetrameric lectin, DC-SIGN, over some other multimeric lectins sharing monovalent mannose specificity but having distinct cellular functions. Herein, we display psDiMan polyvalently onto gold nanoparticles (GNPs) of varying sizes (e.g., ∼5 and ∼13 nm, denoted as G5- and G13 psDiMan hereafter) to probe how the scaffold size and glycan display control their MLGI properties with DC-SIGN and the closely related lectin DC-SIGNR. We show that G5/13 psDiMan binds strongly to DC-SIGN, with sub-nM K ds, with affinity being enhanced with increasing scaffold size, whereas they show apparently no or only weak binding to DC-SIGNR. Interestingly, there is a minimal, GNP-size-dependent, glycan density threshold for forming strong binding with DC-SIGN. By combining temperature-dependent affinity and Van't Hoff analyses, we have developed a new GNP fluorescence quenching assay for MLGI thermodynamics, revealing that DC-SIGN-Gx-psDiMan binding is enthalpy-driven, with a standard binding ΔH 0 of ∼ -95 kJ mol-1, which is ∼4-fold that of the monovalent binding and is comparable to that measured by isothermal titration calorimetry. We further reveal that the enhanced DC-SIGN affinity with Gx-psDiMan with increasing GNP scaffold size is due to reduced binding entropy penalty and not due to enhanced favorable binding enthalpy. We further show that DC-SIGN binds tetravalently to a single Gx-psDiMan, irrespective of the GNP size, whereas DC-SIGNR binding is dependent on GNP size, with no apparent binding with G5, and weak cross-linking with G13. Finally, we show that Gx-psDiMans potently inhibit DC-SIGN-dependent augmentation of cellular entry of Ebola pseudoviruses with sub-nM EC50 values, whereas they exhibit no significant (for G5) or weak (for G13) inhibition against DC-SIGNR-augmented viral entry, consistent to their MLGI properties with DC-SIGNR in solution. These results have established Gx-psDiMan as a versatile new tool for probing MLGI affinity, selectivity, and thermodynamics, as well as GNP-glycan antiviral properties.
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Affiliation(s)
- Xinyu Ning
- School
of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Darshita Budhadev
- School
of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Sara Pollastri
- Dipartimento
di Chimica, Universita′ Degli Studi
di Milano, via Golgi 19, Milano 20133, Italy
| | - Inga Nehlmeier
- Infection
Biology Unit, German Primate Center—Leibniz
Institute for Primate Research, 37077 Göttingen, Germany
| | - Amy Kempf
- Infection
Biology Unit, German Primate Center—Leibniz
Institute for Primate Research, 37077 Göttingen, Germany
| | - Iain Manfield
- School
of Molecular and Cellular Biology and Astbury Centre for Structural
Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - W. Bruce Turnbull
- School
of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Stefan Pöhlmann
- Infection
Biology Unit, German Primate Center—Leibniz
Institute for Primate Research, 37077 Göttingen, Germany
- Faculty
of Biology and Psychology, University of
Göttingen, 37073 Göttingen, Germany
| | - Anna Bernardi
- Dipartimento
di Chimica, Universita′ Degli Studi
di Milano, via Golgi 19, Milano 20133, Italy
| | - Xin Li
- Building
One, Granta Centre, G ranta Park, Sphere
Fluidics Ltd, Great Abington, Cambridge CB21 6AL, United Kingdom
| | - Yuan Guo
- School
of Food Science & Nutrition and Astbury Centre for Structural
Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Dejian Zhou
- School
of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
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4
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Nemli DD, Jiang X, Jakob RP, Gloder LM, Schwardt O, Rabbani S, Maier T, Ernst B, Cramer J. Thermodynamics-Guided Design Reveals a Cooperative Hydrogen Bond in DC-SIGN-targeted Glycomimetics. J Med Chem 2024; 67:13813-13828. [PMID: 38771131 DOI: 10.1021/acs.jmedchem.4c00623] [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: 05/22/2024]
Abstract
Due to the shallow and hydrophilic binding sites of carbohydrate-binding proteins, the design of glycomimetics is often complicated by high desolvation costs as well as competition with solvent. Therefore, a careful optimization of interaction vectors and ligand properties is required in the design and optimization of glycomimetics. Here, we employ thermodynamics-guided design to optimize mannose-based glycomimetics targeting the human C-type lectin receptor dendritic cell-specific intercellular adhesion molecule 3 grabbing nonintegrin (DC-SIGN), a pathogenic host factor in viral infections. By exploring ligand rigidification and hydrogen bond engineering, a monovalent glycomimetic with an unprecedented affinity for DC-SIGN in the low μM range was discovered. A matched molecular pair analysis based on microcalorimetric data revealed a stereospecific hydrogen bond interaction with Glu358/Ser360 as the origin of this cooperative and enthalpically dominated interaction. This detailed insight into the binding mechanism paves the way for an improvement of monovalent glycomimetics targeting DC-SIGN.
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Affiliation(s)
- Dilara D Nemli
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Xiaohua Jiang
- Department of Pharmaceutical Sciences, Group Molecular Pharmacy, Pharmazentrum, University of Basel, Klingelbergstrasse 50, Basel CH-4056, Switzerland
| | - Roman P Jakob
- Department Biozentrum, Structural Area Focal Biology, University of Basel, Spitalstrasse 41, Basel 4056, Switzerland
| | - Laura Muñoz Gloder
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Oliver Schwardt
- Department of Pharmaceutical Sciences, Group Molecular Pharmacy, Pharmazentrum, University of Basel, Klingelbergstrasse 50, Basel CH-4056, Switzerland
| | - Said Rabbani
- Department of Pharmaceutical Sciences, Group Molecular Pharmacy, Pharmazentrum, University of Basel, Klingelbergstrasse 50, Basel CH-4056, Switzerland
| | - Timm Maier
- Department Biozentrum, Structural Area Focal Biology, University of Basel, Spitalstrasse 41, Basel 4056, Switzerland
| | - Beat Ernst
- Department of Pharmaceutical Sciences, Group Molecular Pharmacy, Pharmazentrum, University of Basel, Klingelbergstrasse 50, Basel CH-4056, Switzerland
| | - Jonathan Cramer
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
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5
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Tatsuno R, Komohara Y, Pan C, Kawasaki T, Enomoto A, Jubashi T, Kono H, Wako M, Ashizawa T, Haro H, Ichikawa J. Surface Markers and Chemokines/Cytokines of Tumor-Associated Macrophages in Osteosarcoma and Other Carcinoma Microenviornments-Contradictions and Comparisons. Cancers (Basel) 2024; 16:2801. [PMID: 39199574 PMCID: PMC11353089 DOI: 10.3390/cancers16162801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 08/01/2024] [Accepted: 08/07/2024] [Indexed: 09/01/2024] Open
Abstract
Osteosarcoma (OS) is the most common primary bone tumor in children and adolescents. Prognosis is improving with advances in multidisciplinary treatment strategies, but the development of new anticancer agents has not, and improvement in prognosis for patients with pulmonary metastases has stalled. In recent years, the tumor microenvironment (TME) has gained attention as a therapeutic target for cancer. The immune component of OS TME consists mainly of tumor-associated macrophages (TAMs). They exhibit remarkable plasticity, and their phenotype is influenced by the TME. In general, surface markers such as CD68 and CD80 show anti-tumor effects, while CD163 and CD204 show tumor-promoting effects. Surface markers have potential value as diagnostic and prognostic biomarkers. The cytokines and chemokines produced by TAMs promote tumor growth and metastasis. However, the role of TAMs in OS remains unclear to date. In this review, we describe the role of TAMs in OS by focusing on TAM surface markers and the TAM-produced cytokines and chemokines in the TME, and by comparing their behaviors in other carcinomas. We found contrary results from different studies. These findings highlight the urgency for further research in this field to improve the stalled OS prognosis percentages.
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Affiliation(s)
- Rikito Tatsuno
- Department of Orthopaedic Surgery, University of Yamanashi, Yamanashi 400-0016, Japan; (R.T.); (T.J.); (H.K.); (M.W.); (T.A.); (H.H.)
| | - Yoshihiro Komohara
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8555, Japan; (Y.K.); (C.P.)
| | - Cheng Pan
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8555, Japan; (Y.K.); (C.P.)
| | - Tomonori Kawasaki
- Department of Pathology, Saitama Medical University International Medical Center, Saitama 350-1298, Japan;
| | - Atsushi Enomoto
- Department of Pathology, Graduate School of Medicine, Nagoya University, Nagoya 464-8601, Japan;
| | - Takahiro Jubashi
- Department of Orthopaedic Surgery, University of Yamanashi, Yamanashi 400-0016, Japan; (R.T.); (T.J.); (H.K.); (M.W.); (T.A.); (H.H.)
| | - Hiroyuki Kono
- Department of Orthopaedic Surgery, University of Yamanashi, Yamanashi 400-0016, Japan; (R.T.); (T.J.); (H.K.); (M.W.); (T.A.); (H.H.)
| | - Masanori Wako
- Department of Orthopaedic Surgery, University of Yamanashi, Yamanashi 400-0016, Japan; (R.T.); (T.J.); (H.K.); (M.W.); (T.A.); (H.H.)
| | - Tomoyuki Ashizawa
- Department of Orthopaedic Surgery, University of Yamanashi, Yamanashi 400-0016, Japan; (R.T.); (T.J.); (H.K.); (M.W.); (T.A.); (H.H.)
| | - Hirotaka Haro
- Department of Orthopaedic Surgery, University of Yamanashi, Yamanashi 400-0016, Japan; (R.T.); (T.J.); (H.K.); (M.W.); (T.A.); (H.H.)
| | - Jiro Ichikawa
- Department of Orthopaedic Surgery, University of Yamanashi, Yamanashi 400-0016, Japan; (R.T.); (T.J.); (H.K.); (M.W.); (T.A.); (H.H.)
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6
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Yu X, Zhu Y, Yin G, Wang Y, Shi X, Cheng G. Exploiting hosts and vectors: viral strategies for facilitating transmission. EMBO Rep 2024; 25:3187-3201. [PMID: 39048750 PMCID: PMC11315993 DOI: 10.1038/s44319-024-00214-6] [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: 05/29/2023] [Revised: 04/17/2024] [Accepted: 06/25/2024] [Indexed: 07/27/2024] Open
Abstract
Viruses have developed various strategies to ensure their survival and transmission. One intriguing strategy involves manipulating the behavior of infected arthropod vectors and hosts. Through intricate interactions, viruses can modify vector behavior, aiding in crossing barriers and improving transmission to new hosts. This manipulation may include altering vector feeding preferences, thus promoting virus transmission to susceptible individuals. In addition, viruses employ diverse dissemination methods, including cell-to-cell and intercellular transmission via extracellular vesicles. These strategies allow viruses to establish themselves in favorable environments, optimize replication, and increase the likelihood of spreading to other individuals. Understanding these complex viral strategies offers valuable insights into their biology, transmission dynamics, and potential interventions for controlling infections. Unraveling interactions between viruses, hosts, and vectors enables the development of targeted approaches to effectively mitigate viral diseases and prevent transmission.
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Affiliation(s)
- Xi Yu
- New Cornerstone Science Laboratory, Tsinghua-Peking Center for Life Sciences, School of Basic Medical Sciences, Tsinghua University, Beijing, 100084, China
- Institute of Infectious Diseases, Shenzhen Bay Laboratory, Shenzhen, Guangdong, 518000, China
- Institute of Pathogenic Organisms, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, 518055, China
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yibin Zhu
- New Cornerstone Science Laboratory, Tsinghua-Peking Center for Life Sciences, School of Basic Medical Sciences, Tsinghua University, Beijing, 100084, China
- Institute of Pathogenic Organisms, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, 518055, China
| | - Gang Yin
- Department of Parasitology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Yibaina Wang
- China National Center for Food Safety Risk Assessment, Beijing, 100022, China
| | - Xiaolu Shi
- Institute of Pathogenic Organisms, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, 518055, China
| | - Gong Cheng
- New Cornerstone Science Laboratory, Tsinghua-Peking Center for Life Sciences, School of Basic Medical Sciences, Tsinghua University, Beijing, 100084, China.
- Institute of Infectious Diseases, Shenzhen Bay Laboratory, Shenzhen, Guangdong, 518000, China.
- Institute of Pathogenic Organisms, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, 518055, China.
- Southwest United Graduate School, Kunming, 650092, China.
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7
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Schnetzke U, Fischer M, Röllig C, Scherag A, Altmann H, Stölzel F, Alakel N, Bornhäuser M, Hochhaus A, Scholl S. Validating genetic variants in innate immunity linked to infectious events in acute myeloid leukemia post-induction chemotherapy. Genes Immun 2024; 25:317-323. [PMID: 38982248 PMCID: PMC11327101 DOI: 10.1038/s41435-024-00285-4] [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: 04/28/2024] [Revised: 06/28/2024] [Accepted: 07/03/2024] [Indexed: 07/11/2024]
Abstract
Infectious events, such as sepsis and invasive fungal disease (IFD), pose significant risks in patients with acute myeloid leukemia (AML). Previous studies, including our own, have suggested a potential role of single nucleotide polymorphisms (SNPs) within the innate immune system in influencing individual infection susceptibility. However, many of these associations lack validation in independent cohorts. This study sought to validate the impact of 11 candidate SNPs across 6 genes (TLR2, TLR4, Dectin-1, DC-SIGN, PTX3, L-Ficolin) in an independent cohort of patients. Two cohorts with newly diagnosed AML patients receiving intensive induction chemotherapy were analyzed: a stratification cohort comprising 186 patients and a validation cohort consisting of 138 patients. Multiple SNPs in each cohort were found to be associated to infectious complications, notably the DC-SIGN SNP rs4804800 demonstrated a significant association with sepsis in both cohorts. SNPs within the PTX3 and Dectin-1 genes were linked to IFD development in one cohort each. This study represents the first validation study of candidate genes associated with infectious events in AML patients after intensive induction chemotherapy. Identifying genetic predispositions to infections could significantly impact the management of antimicrobial prophylaxis and treatment in AML patients.
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Affiliation(s)
- Ulf Schnetzke
- Klinik für Innere Medizin II, Abteilung für Hämatologie und Internistische Onkologie, Comprehensive Cancer Center Central Germany - Campus Jena, Universitätsklinikum Jena, Jena, Germany.
| | - Mike Fischer
- Institut für Humangenetik, Universitätsklinikum Jena, Jena, Germany
| | - Christoph Röllig
- Medizinische Klinik I, Universitätsklinikum der Technischen Universität Dresden, Dresden, Germany
| | - André Scherag
- Institut für Medizinische Statistik, Informatik und Datenwissenschaften, Universitätsklinikum Jena, Jena, Germany
| | - Heidi Altmann
- Medizinische Klinik I, Universitätsklinikum der Technischen Universität Dresden, Dresden, Germany
| | - Friedrich Stölzel
- Medizinische Klinik I, Universitätsklinikum der Technischen Universität Dresden, Dresden, Germany
- Sektion für Stammzelltransplantation und zelluläre Immuntherapie, Klinik für Innere Medizin II, Abteilung für Hämatologie und Onkologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Christian-Albrechts-Universität Kiel, Kiel, Germany
| | - Nael Alakel
- Medizinische Klinik I, Universitätsklinikum der Technischen Universität Dresden, Dresden, Germany
| | - Martin Bornhäuser
- Medizinische Klinik I, Universitätsklinikum der Technischen Universität Dresden, Dresden, Germany
| | - Andreas Hochhaus
- Klinik für Innere Medizin II, Abteilung für Hämatologie und Internistische Onkologie, Comprehensive Cancer Center Central Germany - Campus Jena, Universitätsklinikum Jena, Jena, Germany
| | - Sebastian Scholl
- Klinik für Innere Medizin II, Abteilung für Hämatologie und Internistische Onkologie, Comprehensive Cancer Center Central Germany - Campus Jena, Universitätsklinikum Jena, Jena, Germany
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8
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Basaran R, Budhadev D, Kempf A, Nehlmeier I, Hondow N, Pöhlmann S, Guo Y, Zhou D. Probing scaffold size effects on multivalent lectin-glycan binding affinity, thermodynamics and antiviral properties using polyvalent glycan-gold nanoparticles. NANOSCALE 2024; 16:13962-13978. [PMID: 38984502 DOI: 10.1039/d4nr00484a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Multivalent lectin-glycan interactions (MLGIs) are pivotal for viral infections and immune regulation. Their structural and biophysical data are thus highly valuable, not only for understanding their basic mechanisms but also for designing potent glycoconjugate therapeutics against target MLGIs. However, such information for some important MGLIs remains poorly understood, greatly limiting research progress. We have recently developed densely glycosylated nanoparticles, e.g., ∼4 nm quantum dots (QDs) or ∼5 nm gold nanoparticles (GNPs), as mechanistic probes for MLGIs. Using two important model lectin viral receptors, DC-SIGN and DC-SIGNR, we have shown that these probes can not only offer sensitive fluorescence assays for quantifying MLGI affinities, but also reveal key structural information (e.g., binding site orientation and binding mode) useful for MLGI targeting. However, the small sizes of the previous scaffolds may not be optimal for maximising MLGI affinity and targeting specificity. Herein, using α-manno-α-1,2-biose (DiMan) functionalised GNP (GNP-DiMan) probes, we have systematically studied how GNP scaffold size (e.g., 5, 13, and 27 nm) and glycan density (e.g., 100, 75, 50 and 25%) determine their MLGI affinities, thermodynamics, and antiviral properties. We have developed a new GNP fluorescence quenching assay format to minimise the possible interference of GNP's strong inner filter effect in MLGI affinity quantification, revealing that increasing the GNP size is highly beneficial for enhancing MLGI affinity. We have further determined the MLGI thermodynamics by combining temperature-dependent affinity and Van't Hoff analyses, revealing that GNP-DiMan-DC-SIGN/R binding is enthalpy driven with favourable binding Gibbs free energy changes (ΔG°) being enhanced with increasing GNP size. Finally, we show that increasing the GNP size significantly enhances their antiviral potency. Notably, the DiMan coated 27 nm GNP potently and robustly blocks both DC-SIGN and DC-SIGNR mediated pseudo-Ebola virus cellular entry with an EC50 of ∼23 and ∼49 pM, respectively, making it the most potent glycoconjugate inhibitor against DC-SIGN/R-mediated Ebola cellular infections. Our results have established GNP-glycans as a new tool for quantifying MLGI biophysical parameters and revealed that increasing the GNP scaffold size significantly enhances their MLGI affinities and antiviral potencies.
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Affiliation(s)
- Rahman Basaran
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK.
| | - Darshita Budhadev
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK.
| | - Amy Kempf
- Infection Biology Unit, German Primate Centre - Leibniz Institute for Primate Research, 37077 Göttingen, Germany
| | - Inga Nehlmeier
- Infection Biology Unit, German Primate Centre - Leibniz Institute for Primate Research, 37077 Göttingen, Germany
| | - Nicole Hondow
- School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
| | - Stefan Pöhlmann
- Infection Biology Unit, German Primate Centre - Leibniz Institute for Primate Research, 37077 Göttingen, Germany
- Faculty of Biology and Psychology, Georg-August-University Göttingen, 37073 Göttingen, Germany
| | - Yuan Guo
- School of Food Science and Nutrition, and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - Dejian Zhou
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK.
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9
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Malinská N, Grobárová V, Knížková K, Černý J. Maternal-Fetal Microchimerism: Impacts on Offspring's Immune Development and Transgenerational Immune Memory Transfer. Physiol Res 2024; 73:315-332. [PMID: 39027950 PMCID: PMC11299782 DOI: 10.33549/physiolres.935296] [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: 12/06/2023] [Accepted: 02/06/2024] [Indexed: 07/27/2024] Open
Abstract
Maternal-fetal microchimerism is a fascinating phenomenon in which maternal cells migrate to the tissues of the offspring during both pregnancy and breastfeeding. These cells primarily consist of leukocytes and stem cells. Remarkably, these maternal cells possess functional potential in the offspring and play a significant role in shaping their immune system development. T lymphocytes, a cell population mainly found in various tissues of the offspring, have been identified as the major cell type derived from maternal microchimerism. These T lymphocytes not only exert effector functions but also influence the development of the offspring's T lymphocytes in the thymus and the maturation of B lymphocytes in the lymph nodes. Furthermore, the migration of maternal leukocytes also facilitates the transfer of immune memory across generations. Maternal microchimerism has also been observed to address immunodeficiencies in the offspring. This review article focuses on investigating the impact of maternal cells transported within maternal microchimerism on the immune system development of the offspring, as well as elucidating the effector functions of maternal cells that migrate through the placenta and breast milk to reach the offspring.
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Affiliation(s)
- N Malinská
- Laboratory of Cell Immunology, Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic.
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10
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Korpidou M, Becker J, Tarvirdipour S, Dinu IA, Becer CR, Palivan CG. Glycooligomer-Functionalized Catalytic Nanocompartments Co-Loaded with Enzymes Support Parallel Reactions and Promote Cell Internalization. Biomacromolecules 2024; 25:4492-4509. [PMID: 38910355 PMCID: PMC11238334 DOI: 10.1021/acs.biomac.4c00526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/08/2024] [Accepted: 06/10/2024] [Indexed: 06/25/2024]
Abstract
A major shortcoming associated with the application of enzymes in drug synergism originates from the lack of site-specific, multifunctional nanomedicine. This study introduces catalytic nanocompartments (CNCs) made of a mixture of PDMS-b-PMOXA diblock copolymers, decorated with glycooligomer tethers comprising eight mannose-containing repeating units and coencapsulating two enzymes, providing multifunctionality by their in situ parallel reactions. Beta-glucuronidase (GUS) serves for local reactivation of the drug hymecromone, while glucose oxidase (GOx) induces cell starvation through glucose depletion and generation of the cytotoxic H2O2. The insertion of the pore-forming peptide, melittin, facilitates diffusion of substrates and products through the membranes. Increased cell-specific internalization of the CNCs results in a substantial decrease in HepG2 cell viability after 24 h, attributed to simultaneous production of hymecromone and H2O2. Such parallel enzymatic reactions taking place in nanocompartments pave the way to achieve efficient combinatorial cancer therapy by enabling localized drug production along with reactive oxygen species (ROS) elevation.
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Affiliation(s)
- Maria Korpidou
- Department
of Chemistry, University of Basel, Mattenstrasse 22, Basel 4002, Switzerland
| | - Jonas Becker
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Shabnam Tarvirdipour
- Department
of Chemistry, University of Basel, Mattenstrasse 22, Basel 4002, Switzerland
| | - Ionel Adrian Dinu
- Department
of Chemistry, University of Basel, Mattenstrasse 22, Basel 4002, Switzerland
| | - C. Remzi Becer
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Cornelia G. Palivan
- Department
of Chemistry, University of Basel, Mattenstrasse 22, Basel 4002, Switzerland
- NCCR
Molecular Systems Engineering, Mattenstrasse 22, Basel 4002, Switzerland
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11
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Zheng Y, Feng J, Ling M, Yu Y, Tao Y, Wang X. A comprehensive review on targeting cluster of differentiation: An attractive strategy for inhibiting viruses through host proteins. Int J Biol Macromol 2024; 269:132200. [PMID: 38723834 DOI: 10.1016/j.ijbiomac.2024.132200] [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: 03/04/2024] [Revised: 04/20/2024] [Accepted: 05/06/2024] [Indexed: 05/13/2024]
Abstract
Viral infections continue to pose a significant global public health threat. Targeting host proteins, such as cluster of differentiation (CD) macromolecules, may offer a promising alternative approach to developing antiviral treatments. CDs are cell-surface biological macromolecules mainly expressed on leukocytes that viruses can use to enter cells, thereby evading immune detection and promoting their replication. The manipulation of CDs by viruses may represent an effective and clever means of survival through the prolonged co-evolution of hosts and viruses. Targeting of CDs is anticipated to hinder the invasion of related viruses, modulate the body's immune system, and diminish the incidence of subsequent inflammation. They have become crucial for biomedical diagnosis, and some have been used as valuable tools for resisting viral infections. However, a summary of the structures and functions of CDs involved in viral infection is currently lacking. The development of drugs targeting these biological macromolecules is restricted both in terms of their availability and the number of compounds currently identified. This review provides a comprehensive analysis of the critical role of CD proteins in virus invasion and a list of relevant targeted antiviral agents, which will serve as a valuable reference for future research in this field.
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Affiliation(s)
- Youle Zheng
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Jin Feng
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Min Ling
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yixin Yu
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yanfei Tao
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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12
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Lefèbre J, Falk T, Ning Y, Rademacher C. Secondary Sites of the C-type Lectin-Like Fold. Chemistry 2024; 30:e202400660. [PMID: 38527187 DOI: 10.1002/chem.202400660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 03/27/2024]
Abstract
C-type lectins are a large superfamily of proteins involved in a multitude of biological processes. In particular, their involvement in immunity and homeostasis has rendered them attractive targets for diverse therapeutic interventions. They share a characteristic C-type lectin-like domain whose adaptability enables them to bind a broad spectrum of ligands beyond the originally defined canonical Ca2+-dependent carbohydrate binding. Together with variable domain architecture and high-level conformational plasticity, this enables C-type lectins to meet diverse functional demands. Secondary sites provide another layer of regulation and are often intricately linked to functional diversity. Located remote from the canonical primary binding site, secondary sites can accommodate ligands with other physicochemical properties and alter protein dynamics, thus enhancing selectivity and enabling fine-tuning of the biological response. In this review, we outline the structural determinants allowing C-type lectins to perform a large variety of tasks and to accommodate the ligands associated with it. Using the six well-characterized Ca2+-dependent and Ca2+-independent C-type lectin receptors DC-SIGN, langerin, MGL, dectin-1, CLEC-2 and NKG2D as examples, we focus on the characteristics of non-canonical interactions and secondary sites and their potential use in drug discovery endeavors.
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Affiliation(s)
- Jonathan Lefèbre
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport, Sciences, University of Vienna, Vienna, Austria
- Department of Microbiology, Immunology and Genetics, University of Vienna, Max F. Perutz Labs, Vienna, Austria
| | - Torben Falk
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport, Sciences, University of Vienna, Vienna, Austria
- Department of Microbiology, Immunology and Genetics, University of Vienna, Max F. Perutz Labs, Vienna, Austria
| | - Yunzhan Ning
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport, Sciences, University of Vienna, Vienna, Austria
- Department of Microbiology, Immunology and Genetics, University of Vienna, Max F. Perutz Labs, Vienna, Austria
| | - Christoph Rademacher
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
- Department of Microbiology, Immunology and Genetics, University of Vienna, Max F. Perutz Labs, Vienna, Austria
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13
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Karsten CB, Buettner FFR, Cajic S, Nehlmeier I, Roshani B, Klippert A, Sauermann U, Stolte-Leeb N, Reichl U, Gerardy-Schahn R, Rapp E, Stahl-Hennig C, Pöhlmann S. Macrophage- and CD4+ T cell-derived SIV differ in glycosylation, infectivity and neutralization sensitivity. PLoS Pathog 2024; 20:e1012190. [PMID: 38805549 PMCID: PMC11161069 DOI: 10.1371/journal.ppat.1012190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/07/2024] [Accepted: 04/11/2024] [Indexed: 05/30/2024] Open
Abstract
The human immunodeficiency virus (HIV) envelope protein (Env) mediates viral entry into host cells and is the primary target for the humoral immune response. Env is extensively glycosylated, and these glycans shield underlying epitopes from neutralizing antibodies. The glycosylation of Env is influenced by the type of host cell in which the virus is produced. Thus, HIV is distinctly glycosylated by CD4+ T cells, the major target cells, and macrophages. However, the specific differences in glycosylation between viruses produced in these cell types have not been explored at the molecular level. Moreover, it remains unclear whether the production of HIV in CD4+ T cells or macrophages affects the efficiency of viral spread and resistance to neutralization. To address these questions, we employed the simian immunodeficiency virus (SIV) model. Glycan analysis implied higher relative levels of oligomannose-type N-glycans in SIV from CD4+ T cells (T-SIV) compared to SIV from macrophages (M-SIV), and the complex-type N-glycans profiles seem to differ between the two viruses. Notably, M-SIV demonstrated greater infectivity than T-SIV, even when accounting for Env incorporation, suggesting that host cell-dependent factors influence infectivity. Further, M-SIV was more efficiently disseminated by HIV binding cellular lectins. We also evaluated the influence of cell type-dependent differences on SIV's vulnerability to carbohydrate binding agents (CBAs) and neutralizing antibodies. T-SIV demonstrated greater susceptibility to mannose-specific CBAs, possibly due to its elevated expression of oligomannose-type N-glycans. In contrast, M-SIV exhibited higher susceptibility to neutralizing sera in comparison to T-SIV. These findings underscore the importance of host cell-dependent attributes of SIV, such as glycosylation, in shaping both infectivity and the potential effectiveness of intervention strategies.
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Affiliation(s)
- Christina B. Karsten
- Institute for the Research on HIV and AIDS-associated Diseases, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Falk F. R. Buettner
- Institute of Clinical Biochemistry, Hannover Medical School, Hannover, Germany
- Proteomics, Institute of Theoretical Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Samanta Cajic
- glyXera GmbH, Magdeburg, Germany
- Bioprocess Engineering Group, Max Planck Institute for Dynamics of Complex Technical Systems, Magdeburg, Germany
| | - Inga Nehlmeier
- Infection Biology Unit, German Primate Center–Leibniz Institute for Primate Research, Göttingen, Germany
| | - Berit Roshani
- Unit of Infection Models, German Primate Center–Leibniz Institute for Primate Research, Göttingen, Germany
| | | | - Ulrike Sauermann
- Unit of Infection Models, German Primate Center–Leibniz Institute for Primate Research, Göttingen, Germany
| | - Nicole Stolte-Leeb
- Unit of Infection Models, German Primate Center–Leibniz Institute for Primate Research, Göttingen, Germany
| | - Udo Reichl
- Bioprocess Engineering Group, Max Planck Institute for Dynamics of Complex Technical Systems, Magdeburg, Germany
| | - Rita Gerardy-Schahn
- Institute of Clinical Biochemistry, Hannover Medical School, Hannover, Germany
| | - Erdmann Rapp
- glyXera GmbH, Magdeburg, Germany
- Bioprocess Engineering Group, Max Planck Institute for Dynamics of Complex Technical Systems, Magdeburg, Germany
| | - Christiane Stahl-Hennig
- Unit of Infection Models, German Primate Center–Leibniz Institute for Primate Research, Göttingen, Germany
| | - Stefan Pöhlmann
- Infection Biology Unit, German Primate Center–Leibniz Institute for Primate Research, Göttingen, Germany
- Faculty of Biology and Psychology, Georg-August-University Göttingen, Göttingen, Germany
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14
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Helgers LC, Keijzer NCH, van Hamme JL, Sprokholt JK, Geijtenbeek TBH. Dengue Virus Infects Human Skin Langerhans Cells through Langerin for Dissemination to Dendritic Cells. J Invest Dermatol 2024; 144:1099-1111.e3. [PMID: 37979773 DOI: 10.1016/j.jid.2023.09.287] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 09/14/2023] [Accepted: 09/14/2023] [Indexed: 11/20/2023]
Abstract
Dengue virus (DENV) is the most disease-causative flavivirus worldwide. DENV as a mosquito-borne virus infects human hosts through the skin; however, the initial target cells in the skin remain unclear. In this study, we have investigated whether epidermal Langerhans cells (LCs) play a role in DENV acquisition and dissemination. We have used a human epidermal ex vivo infection model as well as isolated LCs to investigate infection by DENV. Notably, both immature and mature LCs were permissive to DENV infection in vitro and ex vivo, and infection was dependent on C-type lectin receptor langerin because blocking antibodies against langerin significantly reduced DENV infection in vitro and ex vivo. DENV-infected LCs efficiently transmitted DENV to target cells such as dendritic cells. Moreover, DENV exposure increased the migration of LCs from epidermal explants. These results strongly suggest that DENV targets epidermal LCs for infection and dissemination in the human host. These findings could provide potential drug targets to combat the early stage of DENV infection.
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Affiliation(s)
- Leanne C Helgers
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam institute for Infection & Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Nadia C H Keijzer
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam institute for Infection & Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - John L van Hamme
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam institute for Infection & Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Joris K Sprokholt
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam institute for Infection & Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Teunis B H Geijtenbeek
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam institute for Infection & Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
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15
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Zhai X, Yuan Y, He WT, Wu Y, Shi Y, Su S, Du Q, Mao Y. Evolving roles of glycosylation in the tug-of-war between virus and host. Natl Sci Rev 2024; 11:nwae086. [PMID: 38784919 PMCID: PMC11114464 DOI: 10.1093/nsr/nwae086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/08/2024] [Accepted: 03/03/2024] [Indexed: 05/25/2024] Open
Affiliation(s)
- Xiaofeng Zhai
- Academy for Advanced Interdisciplinary Studies, Engineering Laboratory of Animal Immunity of Jiangsu Province, College of Veterinary Medicine, Nanjing Agricultural University, China
| | - Yanqiu Yuan
- State Key Laboratory of Anti-Infective Drug Discovery and Development, School of Pharmaceutical Sciences, Sun Yat-sen University, China
| | - Wan-Ting He
- School of Pharmacy, China Pharmaceutical University, China
| | - Ying Wu
- Guangdong Provincial Key Laboratory of Drug Non-Clinical Evaluation and Research, School of Pharmaceutical Sciences, Sun Yat-sen University, China
| | - Yi Shi
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, China
| | - Shuo Su
- Academy for Advanced Interdisciplinary Studies, Engineering Laboratory of Animal Immunity of Jiangsu Province, College of Veterinary Medicine, Nanjing Agricultural University, China
| | - Quansheng Du
- Department of Interdisciplinary Sciences, National Natural Science Foundation of China, China
| | - Yang Mao
- Guangdong Provincial Key Laboratory of Drug Non-Clinical Evaluation and Research, School of Pharmaceutical Sciences, Sun Yat-sen University, China
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16
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Albanese M, Chen HR, Gapp M, Muenchhoff M, Yang HH, Peterhoff D, Hoffmann K, Xiao Q, Ruhle A, Ambiel I, Schneider S, Mejías-Pérez E, Stern M, Wratil PR, Hofmann K, Amann L, Jocham L, Fuchs T, Ulivi AF, Besson-Girard S, Weidlich S, Schneider J, Spinner CD, Sutter K, Dittmer U, Humpe A, Baumeister P, Wieser A, Rothenfusser S, Bogner J, Roider J, Knolle P, Hengel H, Wagner R, Laketa V, Fackler OT, Keppler OT. Receptor transfer between immune cells by autoantibody-enhanced, CD32-driven trogocytosis is hijacked by HIV-1 to infect resting CD4 T cells. Cell Rep Med 2024; 5:101483. [PMID: 38579727 PMCID: PMC11031382 DOI: 10.1016/j.xcrm.2024.101483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 12/23/2023] [Accepted: 03/01/2024] [Indexed: 04/07/2024]
Abstract
Immune cell phenotyping frequently detects lineage-unrelated receptors. Here, we report that surface receptors can be transferred from primary macrophages to CD4 T cells and identify the Fcγ receptor CD32 as driver and cargo of this trogocytotic transfer. Filamentous CD32+ nanoprotrusions deposit distinct plasma membrane patches onto target T cells. Transferred receptors confer cell migration and adhesion properties, and macrophage-derived membrane patches render resting CD4 T cells susceptible to infection by serving as hotspots for HIV-1 binding. Antibodies that recognize T cell epitopes enhance CD32-mediated trogocytosis. Such autoreactive anti-HIV-1 envelope antibodies can be found in the blood of HIV-1 patients and, consistently, the percentage of CD32+ CD4 T cells is increased in their blood. This CD32-mediated, antigen-independent cell communication mode transiently expands the receptor repertoire and functionality of immune cells. HIV-1 hijacks this mechanism by triggering the generation of trogocytosis-promoting autoantibodies to gain access to immune cells critical to its persistence.
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Affiliation(s)
- Manuel Albanese
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany; Department for Clinical Sciences and Community Health (DISCCO), University of Milan, Milan, Italy
| | - Hong-Ru Chen
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany.
| | - Madeleine Gapp
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Maximilian Muenchhoff
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany; German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Hsiu-Hui Yang
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - David Peterhoff
- Institute of Medical Microbiology and Hygiene, Molecular Microbiology (Virology), University of Regensburg, Regensburg, Germany
| | - Katja Hoffmann
- Institute of Virology, University Medical Center, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Qianhao Xiao
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Adrian Ruhle
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Ina Ambiel
- Department of Infectious Diseases, Heidelberg University, Medical Faculty Heidelberg, Integrative Virology, Center for Integrative Infectious Disease Research (CIID), Heidelberg, Germany; German Centre for Infection Research (DZIF), Partner Site Heidelberg, Heidelberg, Germany
| | - Stephanie Schneider
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Ernesto Mejías-Pérez
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Marcel Stern
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Paul R Wratil
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Katharina Hofmann
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Laura Amann
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Linda Jocham
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | - Thimo Fuchs
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | | | - Simon Besson-Girard
- Institute for Stroke and Dementia Research, University Hospital, LMU München, Munich, Germany
| | - Simon Weidlich
- Technical University of Munich, School of Medicine, University Hospital Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Jochen Schneider
- Technical University of Munich, School of Medicine, University Hospital Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Christoph D Spinner
- German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany; Technical University of Munich, School of Medicine, University Hospital Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Kathrin Sutter
- University Hospital Essen, University Duisburg-Essen, Institute for Virology and Institute for Translational HIV Research, Essen, Germany
| | - Ulf Dittmer
- University Hospital Essen, University Duisburg-Essen, Institute for Virology and Institute for Translational HIV Research, Essen, Germany
| | - Andreas Humpe
- Department of Transfusion Medicine, Cell Therapeutics, and Hemostaseology, Department of Anesthesiology, University Hospital Munich, Munich, Germany
| | - Philipp Baumeister
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, LMU München, Munich, Germany
| | - Andreas Wieser
- German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany; Max von Pettenkofer Institute, Medical Microbiology and Hospital Epidemiology, Faculty of Medicine, LMU München, Munich, Germany; Division of Infectious Diseases and Tropical Medicine, University Hospital, LMU München, Munich, Germany
| | - Simon Rothenfusser
- Division of Clinical Pharmacology, University Hospital, LMU München and Unit Clinical Pharmacology (EKliP), Helmholtz Center for Environmental Health, Munich, Germany
| | - Johannes Bogner
- German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany; Division of Infectious Diseases, University Hospital, Medizinische Klinik und Poliklinik IV, LMU München, Munich, Germany
| | - Julia Roider
- German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany; Division of Infectious Diseases, University Hospital, Medizinische Klinik und Poliklinik IV, LMU München, Munich, Germany
| | - Percy Knolle
- German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany; Institute of Molecular Immunology and Experimental Oncology, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Hartmut Hengel
- Institute of Virology, University Medical Center, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Ralf Wagner
- Institute of Medical Microbiology and Hygiene, Molecular Microbiology (Virology), University of Regensburg, Regensburg, Germany
| | - Vibor Laketa
- German Centre for Infection Research (DZIF), Partner Site Heidelberg, Heidelberg, Germany; Department of Infectious Diseases, Heidelberg University, Medical Faculty Heidelberg, Virology, Center for Integrative Infectious Disease Research (CIID), Heidelberg, Germany
| | - Oliver T Fackler
- Department of Infectious Diseases, Heidelberg University, Medical Faculty Heidelberg, Integrative Virology, Center for Integrative Infectious Disease Research (CIID), Heidelberg, Germany; German Centre for Infection Research (DZIF), Partner Site Heidelberg, Heidelberg, Germany.
| | - Oliver T Keppler
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany; German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany.
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17
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Basaran R, Ning X, Budhadev D, Hondow N, Guo Y, Zhou D. Probing the pH-dependency of DC-SIGN/R multivalent lectin-glycan interactions using polyvalent glycan-gold nanoparticles. NANOSCALE ADVANCES 2024; 6:2198-2208. [PMID: 38633047 PMCID: PMC11019501 DOI: 10.1039/d3na01013a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 03/04/2024] [Indexed: 04/19/2024]
Abstract
The dendritic cell tetrameric lectin, DC-SIGN, and its closely related endothelial cell lectin, DC-SIGNR (collectively abbreviated as DC-SIGN/R) play a key role in the binding and transmission of deadly viruses, including Ebola, HIV, HCV, and SARS-CoV-2. Their virus binding/release processes involve a gradually acidifying environment following the natural intracellular trafficking pathways. Therefore, understanding DC-SIGN/R's pH-dependent binding properties with glycan ligands is of great importance. We have recently developed densely glycosylated gold nanoparticles (glycan-GNPs) as a powerful new tool for probing DC-SIGN/R multivalent lectin-glycan interaction (MLGI) mechanisms. They can provide not only quantitative MLGI affinities but also important structural information, such as binding site orientation and binding modes. Herein, we further employ the glycan-GNP probes to investigate the pH dependency of DC-SIGN/R MLGI properties. We find that DC-SIGN/R MLGIs exhibit distinct pH dependence over the normal physiological (7.4) to lysosomal (∼4.6) pH range. DC-SIGN binds glycan-GNPs strongly and stably from pH 7.4 to ∼5.8, but the binding is weakened significantly as pH decreases to ≤5.4 and may be fully dissociated at pH 4.6. This behaviour is fully consistent with DC-SIGN's role as an endocytic recycling receptor. In contrast, DC-SIGNR's affinity with glycan-GNPs is enhanced with the decreasing pH from 7.4 to 5.4, peaking at pH 5.4, and then reduced as pH is further lowered. Interestingly, both DC-SIGN/R binding with glycan-GNPs are found to be partially reversible in a pH-dependent manner.
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Affiliation(s)
- Rahman Basaran
- School of Chemistry, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Xinyu Ning
- School of Chemistry, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Darshita Budhadev
- School of Chemistry, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Nicole Hondow
- School of Chemical and Process Engineering, University of Leeds Leeds LS2 9JT UK
| | - Yuan Guo
- School of Food Science and Nutrition, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Dejian Zhou
- School of Chemistry, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
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18
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Reis E Sousa C, Yamasaki S, Brown GD. Myeloid C-type lectin receptors in innate immune recognition. Immunity 2024; 57:700-717. [PMID: 38599166 DOI: 10.1016/j.immuni.2024.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 04/12/2024]
Abstract
C-type lectin receptors (CLRs) expressed by myeloid cells constitute a versatile family of receptors that play a key role in innate immune recognition. Myeloid CLRs exhibit a remarkable ability to recognize an extensive array of ligands, from carbohydrates and beyond, and encompass pattern-associated molecular patterns (PAMPs), damage-associated molecular patterns (DAMPs), and markers of altered self. These receptors, classified into distinct subgroups, play pivotal roles in immune recognition and modulation of immune responses. Their intricate signaling pathways orchestrate a spectrum of cellular responses, influencing processes such as phagocytosis, cytokine production, and antigen presentation. Beyond their contributions to host defense in viral, bacterial, fungal, and parasitic infections, myeloid CLRs have been implicated in non-infectious diseases such as cancer, allergies, and autoimmunity. A nuanced understanding of myeloid CLR interactions with endogenous and microbial triggers is starting to uncover the context-dependent nature of their roles in innate immunity, with implications for therapeutic intervention.
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Affiliation(s)
- Caetano Reis E Sousa
- Immunobiology Laboratory, The Francis Crick Institute, 1 Midland Road, NW1 1AT London, UK.
| | - Sho Yamasaki
- Molecular Immunology, Research Institute for Microbial Diseases, Immunology Frontier Research Center (IFReC), Osaka University, Suita 565-0871, Japan.
| | - Gordon D Brown
- MRC Centre for Medical Mycology at the University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK.
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19
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Cheng S, Xu M, Li M, Feng Y, He L, Liu T, Ma L, Li X. Improving Anti-HIV activity and pharmacokinetics of enfuvirtide (T20) by modification with oligomannose. Eur J Med Chem 2024; 269:116299. [PMID: 38479167 DOI: 10.1016/j.ejmech.2024.116299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/25/2024] [Accepted: 03/01/2024] [Indexed: 04/07/2024]
Abstract
Dendritic cells (DCs) play a pivotal role in controlling HIV-1 infections of CD4+ T cells. DC-SIGN, which is expressed on the surface of DCs, efficiently captures HIV-1 virions by binding to the highly mannosylated membrane protein, gp120, and then the DCs transport the virus to target T cells in lymphoid organs. This study explored the modification of T20, a peptide inhibitor of HIV-1 fusion, by conjugation of the N-terminus with varying sizes of oligomannose, which are DC-SIGN-specific carbohydrates, aiming to create dual-targeting HIV inhibitors. Mechanistic studies indicated the dual-target binding of the conjugates. Antiviral assays demonstrated that N-terminal mannosylation of T20 resulted in increased inhibition of the viral infection of TZM-b1 cells (EC50 = 0.3-0.8 vs. 1.4 nM). Pentamannosylated T20 (M5-T20) exhibited a stronger inhibitory effect on virus entry into DC-SIGN+ 293T cells compared with T20 (67% vs. 50% inhibition at 500 μM). M5-T20 displayed an extended half-life in rats relative to T20 (T1/2: 8.56 vs. 1.64 h, respectively). These conjugates represent a potential new treatment for HIV infections with improved antiviral activity and pharmacokinetics, and this strategy may prove useful in developing dual-target inhibitors for other pathogens that require DC-SIGN involvement for infection.
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Affiliation(s)
- Shuihong Cheng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing, 101408, China
| | - Mingyue Xu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing, 101408, China
| | - Mingli Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing, 101408, China
| | - Yong Feng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing, 101408, China
| | - Lin He
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Tong Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing, 101408, China
| | - Liying Ma
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
| | - Xuebing Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing, 101408, China.
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20
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Stevenson FK, Forconi F. The essential microenvironmental role of oligomannoses specifically inserted into the antigen-binding sites of lymphoma cells. Blood 2024; 143:1091-1100. [PMID: 37992212 DOI: 10.1182/blood.2023022703] [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: 09/27/2023] [Revised: 10/27/2023] [Accepted: 10/29/2023] [Indexed: 11/24/2023] Open
Abstract
ABSTRACT There are 2 mandatory features added sequentially en route to classical follicular lymphoma (FL): first, the t(14;18) translocation, which upregulates BCL2, and second, the introduction of sequence motifs into the antigen-binding sites of the B-cell receptor (BCR), to which oligomannose-type glycan is added. Further processing of the glycan is blocked by complementarity-determining region-specific steric hindrance, leading to exposure of mannosylated immunoglobulin (Ig) to the microenvironment. This allows for interaction with the local lectin, dendritic cell-specific ICAM-3-grabbing nonintegrin (DC-SIGN), expressed by tissue macrophages and follicular dendritic cells. The major function of DC-SIGN is to engage pathogens, but this is subverted by FL cells. DC-SIGN induces tumor-specific low-level BCR signaling in FL cells and promotes membrane changes with increased adhesion to VCAM-1 via proximal kinases and actin regulators but, in contrast to engagement by anti-Ig, avoids endocytosis and apoptosis. These interactions appear mandatory for the early development of FL, before the acquisition of other accelerating mutations. BCR-associated mannosylation can be found in a subset of germinal center B-cell-like diffuse large B-cell lymphoma with t(14;18), tracking these cases back to FL. This category was associated with more aggressive behavior: both FL and transformed cases and, potentially, a significant number of cases of Burkitt lymphoma, which also has sites for N-glycan addition, could benefit from antibody-mediated blockade of the interaction with DC-SIGN.
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Affiliation(s)
- Freda K Stevenson
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Francesco Forconi
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
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21
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Cheng S, Li M, Feng Y, Liu T, He L, Xu M, Ma L, Li X. Glycan-Modified Peptides for Dual Inhibition of Human Immunodeficiency Virus Entry into Dendritic Cells and T Cells. J Med Chem 2024; 67:4225-4233. [PMID: 38364308 DOI: 10.1021/acs.jmedchem.4c00116] [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: 02/18/2024]
Abstract
Dendritic cells (DCs) play a crucial role in HIV-1 infection of CD4+ T cells. DC-SIGN, a lectin expressed on the surface of DCs, binds to the highly mannosylated viral membrane protein gp120 to capture HIV-1 virions and then transport them to target T cells. In this study, we modified peptide C34, an HIV-1 fusion inhibitor, at different sites using different sizes of the DC-SIGN-specific carbohydrates to provide dual-targeted HIV inhibition. The dual-target binding was confirmed by mechanistic studies. Pentamannose-modified C34 inhibited virus entry into both DC-SIGN+ 293T cells (52%-71% inhibition at 500 μM) and CD4+ TZM-b1 cells (EC50 = 0.7-1.7 nM). One conjugate, NC-M5, showed an extended half-life relative to C34 in rats (T1/2: 7.8 vs 1.02 h). These improvements in antiviral activity and pharmacokinetics have potential for HIV treatment and the development of dual-target inhibitors for pathogens that require the involvement of DC-SIGN for infection.
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Affiliation(s)
- Shuihong Cheng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing 101408, China
| | - Mingli Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing 101408, China
| | - Yong Feng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing 101408, China
| | - Tong Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing 101408, China
| | - Lin He
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, People's Republic of China
| | - Mingyue Xu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing 101408, China
| | - Liying Ma
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, People's Republic of China
| | - Xuebing Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Chaoyang District, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Huairou district, Beijing 101408, China
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22
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Siew ZY, Asudas E, Khoo CT, Cho GH, Voon K, Fang CM. Fighting nature with nature: antiviral compounds that target retroviruses. Arch Microbiol 2024; 206:130. [PMID: 38416180 DOI: 10.1007/s00203-024-03846-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 02/29/2024]
Abstract
The human immunodeficiency virus (HIV) is a type of lentivirus that targets the human immune system and leads to acquired immunodeficiency syndrome (AIDS) at a later stage. Up to 2021, there are millions still living with HIV and many have lost their lives. To date, many anti-HIV compounds have been discovered in living organisms, especially plants and marine sponges. However, no treatment can offer a complete cure, but only suppressing it with a life-long medication, known as combined antiretroviral therapy (cART) or highly active antiretroviral therapy (HAART) which are often associated with various adverse effects. Also, it takes many years for a discovered compound to be approved for clinical use. Thus, by employing advanced technologies such as automation, conducting systematic screening and testing protocols may boost the discovery and development of potent and curative therapeutics for HIV infection/AIDS. In this review, we aim to summarize the antiretroviral therapies/compounds and their associated drawbacks since the discovery of azidothymidine. Additionally, we aim to provide an updated analysis of the most recent discoveries of promising antiretroviral candidates, along with an exploration of the current limitations within antiretroviral research. Finally, we intend to glean insightful perspectives and propose future research directions in this crucial area of study.
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Affiliation(s)
- Zhen Yun Siew
- Division of Biomedical Sciences, School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor, Malaysia.
| | - Elishea Asudas
- Division of Biomedical Sciences, School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor, Malaysia
| | - Chia Ting Khoo
- School of Biosciences, University of Nottingham Malaysia, 43500, Semenyih, Selangor, Malaysia
| | - Gang Hyeon Cho
- School of Pharmacy, University of Nottingham Malaysia, 43500, Semenyih, Selangor, Malaysia
| | - Kenny Voon
- Division of Biomedical Sciences, School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor, Malaysia
| | - Chee-Mun Fang
- Division of Biomedical Sciences, School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor, Malaysia.
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23
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Nieto-Fabregat F, Zhu Q, Vivès C, Zhang Y, Marseglia A, Chiodo F, Thépaut M, Rai D, Kulkarni SS, Di Lorenzo F, Molinaro A, Marchetti R, Fieschi F, Xiao G, Yu B, Silipo A. Atomic-Level Dissection of DC-SIGN Recognition of Bacteroides vulgatus LPS Epitopes. JACS AU 2024; 4:697-712. [PMID: 38425910 PMCID: PMC10900495 DOI: 10.1021/jacsau.3c00748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 03/02/2024]
Abstract
The evaluation of Bacteroides vulgatus mpk (BVMPK) lipopolysaccharide (LPS) recognition by DC-SIGN, a key lectin in mediating immune homeostasis, has been here performed. A fine chemical dissection of BVMPK LPS components, attained by synthetic chemistry combined to spectroscopic, biophysical, and computational techniques, allowed to finely map the LPS epitopes recognized by DC-SIGN. Our findings reveal BVMPK's role in immune modulation via DC-SIGN, targeting both the LPS O-antigen and the core oligosaccharide. Furthermore, when framed within medical chemistry or drug design, our results could lead to the development of tailored molecules to benefit the hosts dealing with inflammatory diseases.
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Affiliation(s)
- Ferran Nieto-Fabregat
- Department
of Chemical Sciences, University of Naples
Federico II, Naples 80126, Italy
| | - Qian Zhu
- State
Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai
Institute of Organic Chemistry, University
of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Corinne Vivès
- Université
Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, Grenoble 38027, France
| | - Yunqin Zhang
- State Key
Laboratory of Phytochemistry and Plant Resources in West China, Kunming
Institute of Botany, University of Chinese
Academy of Sciences, Chinese Academy of Sciences, Kunming 650201, China
| | - Angela Marseglia
- Department
of Chemical Sciences, University of Naples
Federico II, Naples 80126, Italy
| | - Fabrizio Chiodo
- Institute
of Biomolecular Chemistry, National Research Council (CNR), Pozzuoli 80078, Italy
| | - Michel Thépaut
- Université
Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, Grenoble 38027, France
| | - Diksha Rai
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
| | - Suvarn S. Kulkarni
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
| | - Flaviana Di Lorenzo
- Department
of Chemical Sciences, University of Naples
Federico II, Naples 80126, Italy
| | - Antonio Molinaro
- Department
of Chemical Sciences, University of Naples
Federico II, Naples 80126, Italy
| | - Roberta Marchetti
- Department
of Chemical Sciences, University of Naples
Federico II, Naples 80126, Italy
| | - Franck Fieschi
- Université
Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, Grenoble 38027, France
- Institut
Universitaire de France (IUF), Paris 75005, France
| | - Guozhi Xiao
- State Key
Laboratory of Phytochemistry and Plant Resources in West China, Kunming
Institute of Botany, University of Chinese
Academy of Sciences, Chinese Academy of Sciences, Kunming 650201, China
| | - Biao Yu
- State
Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai
Institute of Organic Chemistry, University
of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Alba Silipo
- Department
of Chemical Sciences, University of Naples
Federico II, Naples 80126, Italy
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24
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Nieto-Fabregat F, Marseglia A, Thépaut M, Kleman JP, Abbas M, Le Roy A, Ebel C, Maalej M, Simorre JP, Laguri C, Molinaro A, Silipo A, Fieschi F, Marchetti R. Molecular recognition of Escherichia coli R1-type core lipooligosaccharide by DC-SIGN. iScience 2024; 27:108792. [PMID: 38299112 PMCID: PMC10828809 DOI: 10.1016/j.isci.2024.108792] [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: 05/08/2023] [Revised: 08/30/2023] [Accepted: 01/02/2024] [Indexed: 02/02/2024] Open
Abstract
Due to their ability to recognize carbohydrate structures, lectins emerged as potential receptors for bacterial lipopolysaccharides (LPS). Despite growing interest in investigating the association between host receptor lectins and exogenous glycan ligands, the molecular mechanisms underlying bacterial recognition by human lectins are still not fully understood. We contributed to fill this gap by unveiling the molecular basis of the interaction between the lipooligosaccharide of Escherichia coli and the dendritic cell-specific intracellular adhesion molecules (ICAM)-3 grabbing non-integrin (DC-SIGN). Specifically, a combination of different techniques, including fluorescence microscopy, surface plasmon resonance, NMR spectroscopy, and computational studies, demonstrated that DC-SIGN binds to the purified deacylated R1 lipooligosaccharide mainly through the recognition of its outer core pentasaccharide, which acts as a crosslinker between two different tetrameric units of DC-SIGN. Our results contribute to a better understanding of DC-SIGN-LPS interaction and may support the development of pharmacological and immunostimulatory strategies for bacterial infections, prevention, and therapy.
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Affiliation(s)
- Ferran Nieto-Fabregat
- Department of Chemical Science, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
| | - Angela Marseglia
- Department of Chemical Science, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
| | - Michel Thépaut
- University Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 41 Avenue des Martyrs, 38000 Grenoble, France
| | - Jean-Philippe Kleman
- University Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 41 Avenue des Martyrs, 38000 Grenoble, France
| | - Massilia Abbas
- University Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 41 Avenue des Martyrs, 38000 Grenoble, France
| | - Aline Le Roy
- University Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 41 Avenue des Martyrs, 38000 Grenoble, France
| | - Christine Ebel
- University Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 41 Avenue des Martyrs, 38000 Grenoble, France
| | - Meriem Maalej
- Department of Chemical Science, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
- University Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 41 Avenue des Martyrs, 38000 Grenoble, France
| | - Jean-Pierre Simorre
- University Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 41 Avenue des Martyrs, 38000 Grenoble, France
| | - Cedric Laguri
- University Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 41 Avenue des Martyrs, 38000 Grenoble, France
| | - Antonio Molinaro
- Department of Chemical Science, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
| | - Alba Silipo
- Department of Chemical Science, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
| | - Franck Fieschi
- University Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 41 Avenue des Martyrs, 38000 Grenoble, France
- Institut Universitaire de France (IUF), Paris, France
| | - Roberta Marchetti
- Department of Chemical Science, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
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25
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Herrera-González I, González-Cuesta M, Thépaut M, Laigre E, Goyard D, Rojo J, García Fernández JM, Fieschi F, Renaudet O, Nieto PM, Ortiz Mellet C. High-Mannose Oligosaccharide Hemimimetics that Recapitulate the Conformation and Binding Mode to Concanavalin A, DC-SIGN and Langerin. Chemistry 2024; 30:e202303041. [PMID: 37828571 DOI: 10.1002/chem.202303041] [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: 09/18/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 10/14/2023]
Abstract
The "carbohydrate chemical mimicry" exhibited by sp2 -iminosugars has been utilized to develop practical syntheses for analogs of the branched high-mannose-type oligosaccharides (HMOs) Man3 and Man5 . In these compounds, the terminal nonreducing Man residues have been substituted with 5,6-oxomethylidenemannonojirimycin (OMJ) motifs. The resulting oligomannoside hemimimetic accurately reproduce the structure, configuration, and conformational behavior of the original mannooligosaccharides, as confirmed by NMR and computational techniques. Binding studies with mannose binding lectins, including concanavalin A, DC-SIGN, and langerin, by enzyme-linked lectin assay and surface plasmon resonance revealed significant variations in their ability to accommodate the OMJ unit in the mannose binding site. Intriguingly, OMJMan segments demonstrated "in line" heteromultivalent effects during binding to the three lectins. Similar to the mannobiose (Man2 ) branches in HMOs, the binding modes involving the external or internal monosaccharide unit at the carbohydrate binding-domain exist in equilibrium, facilitating sliding and recapture processes. This equilibrium, which influences the multivalent binding of HMOs, can be finely modulated upon incorporation of the OMJ sp2 -iminosugar caps. As a proof of concept, the affinity and selectivity towards DC-SIGN and langerin were adjustable by presenting the OMJMan epitope in platforms with diverse architectures and valencies.
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Affiliation(s)
- Irene Herrera-González
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/ Profesor García González 1, 41012, Sevilla, Spain
- Present address: DCM, UMR 5250, Université Grenoble Alpes, CNRS, 570 Rue de la Chimie, 38000, Grenoble, France
| | - Manuel González-Cuesta
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/ Profesor García González 1, 41012, Sevilla, Spain
| | - Michel Thépaut
- Institut de Biologie Structurale, Université Grenoble Alpes, CNRS, CEA, 38000, Grenoble, France
| | - Eugénie Laigre
- Institut de Biologie Structurale, Université Grenoble Alpes, CNRS, CEA, 38000, Grenoble, France
- DCM, UMR 5250, Université Grenoble Alpes, CNRS, 570 Rue de la Chimie, 38000, Grenoble, France
| | - David Goyard
- DCM, UMR 5250, Université Grenoble Alpes, CNRS, 570 Rue de la Chimie, 38000, Grenoble, France
| | - Javier Rojo
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Américo Vespucio 49, 41092, Sevilla, Spain
| | - José M García Fernández
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Américo Vespucio 49, 41092, Sevilla, Spain
| | - Franck Fieschi
- Institut de Biologie Structurale, Université Grenoble Alpes, CNRS, CEA, 38000, Grenoble, France
- Institut Universitaire de France (IUF), Paris, France
| | - Olivier Renaudet
- DCM, UMR 5250, Université Grenoble Alpes, CNRS, 570 Rue de la Chimie, 38000, Grenoble, France
| | - Pedro M Nieto
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Américo Vespucio 49, 41092, Sevilla, Spain
| | - Carmen Ortiz Mellet
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/ Profesor García González 1, 41012, Sevilla, Spain
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26
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Ma TF, Huang JN, Wen B, Gao JZ, Chen ZZ. Genome-wide identification and expression analysis of C-type lectins in discus fish (Symphysodon aequifasciatus) during parental care. FISH & SHELLFISH IMMUNOLOGY 2024; 144:109291. [PMID: 38104702 DOI: 10.1016/j.fsi.2023.109291] [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: 10/04/2023] [Revised: 12/07/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023]
Abstract
Discus fish (Symphysodon aequifasciatus) exhibit a unique parental care behavior: adult discus produces secretion through their skin, on which the larvae live after birth. The immune components in the skin mucus of parental discus would change during different parental care. C-type lectins (CTLs) could identify and eliminate pathogenic microorganisms and play important roles in innate immunity. Studies on CTLs of discus fish especially during parental care, however, are scarce. Here, we identified 186 CTL genes that distributed in 27 linkage groups based on discus genome. Phylogenetic analysis showed that S. aequifasciatus CTL (SaCTL) members were grouped into 14 subfamilies. A total of 80 gene replication events occurred, of which 15 pairs were subjected to segmental duplication and 65 pairs underwent tandem duplication. Ka/Ks ranged from 0.11 (SaCTL25/SaCTL158) to 0.68 (SaCTL36/SaCTL69), all undergoing purifying selection. RNA-seq analysis revealed that SaCTL members, including duplicated genes, in the skin of parental discus show distinct expression patterns in different care stages and between male and female parents. The SaCTL11 was differentially expressed in most care stages and reached the maximum after eggs spawned, but the expression of its paired SaCTL14 was low in each stage. The SaCTL39 increased first and then decreased, reaching a peak in eggs spawned, while paired SaCTL48 first decreased and then increased, reaching a peak in hatched eggs. The SaCTL50 was differentially expressed only in female fish during care, but not in male fish. These results provide new insights into the evolution and potential functional differentiation of CTLs in discus fish during parental care.
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Affiliation(s)
- Teng-Fei Ma
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Jun-Nan Huang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Bin Wen
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.
| | - Jian-Zhong Gao
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Zai-Zhong Chen
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.
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27
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Balaji S, Chakraborty R, Aggarwal S. Neurological Complications Caused by Human Immunodeficiency Virus (HIV) and Associated Opportunistic Co-infections: A Review on their Diagnosis and Therapeutic Insights. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:284-305. [PMID: 37005520 DOI: 10.2174/1871527322666230330083708] [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: 04/30/2022] [Revised: 12/28/2022] [Accepted: 01/25/2023] [Indexed: 04/04/2023]
Abstract
Neurocognitive disorders associated with human immunodeficiency virus (HIV) infected individuals increase the risk of mortality and morbidity that remain a prevalent clinical complication even in the antiretroviral therapy era. It is estimated that a considerable number of people in the HIV community are developing neurological complications at their early stages of infection. The daily lives of people with chronic HIV infections are greatly affected by cognitive declines such as loss of attention, learning, and executive functions, and other adverse conditions like neuronal injury and dementia. It has been found that the entry of HIV into the brain and subsequently crossing the blood-brain barrier (BBB) causes brain cell damage, which is the prerequisite for the development of neurocognitive disorders. Besides the HIV replication in the central nervous system and the adverse effects of antiretroviral therapy on the BBB, a range of opportunistic infections, including viral, bacterial, and parasitic agents, augment the neurological complications in people living with HIV (PLHIV). Given the immuno-compromised state of PLHIV, these co-infections can present a wide range of clinical syndromes with atypical manifestations that pose challenges in diagnosis and clinical management, representing a substantial burden for the public health system. Therefore, the present review narrates the neurological complications triggered by HIV and their diagnosis and treatment options. Moreover, coinfections that are known to cause neurological disorders in HIV infected individuals are highlighted.
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Affiliation(s)
- Sivaraman Balaji
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, Ansari Nagar, New Delhi, 110029, India
| | - Rohan Chakraborty
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Sumit Aggarwal
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, Ansari Nagar, New Delhi, 110029, India
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28
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Bains A, Fischer K, Guan W, LiWang PJ. The Antiviral Activity of the Lectin Griffithsin against SARS-CoV-2 Is Enhanced by the Presence of Structural Proteins. Viruses 2023; 15:2452. [PMID: 38140693 PMCID: PMC10747160 DOI: 10.3390/v15122452] [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: 10/14/2023] [Revised: 12/07/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
Although COVID-19 transmission has been reduced by the advent of vaccinations and a variety of rapid monitoring techniques, the SARS-CoV-2 virus itself has shown a remarkable ability to mutate and persist. With this long track record of immune escape, researchers are still exploring prophylactic treatments to curtail future SARS-CoV-2 variants. Specifically, much focus has been placed on the antiviral lectin Griffithsin in preventing spike protein-mediated infection via the hACE2 receptor (direct infection). However, an oft-overlooked aspect of SARS-CoV-2 infection is viral capture by attachment receptors such as DC-SIGN, which is thought to facilitate the initial stages of COVID-19 infection in the lung tissue (called trans-infection). In addition, while immune escape is dictated by mutations in the spike protein, coronaviral virions also incorporate M, N, and E structural proteins within the particle. In this paper, we explored how several structural facets of both the SARS-CoV-2 virion and the antiviral lectin Griffithsin can affect and attenuate the infectivity of SARS-CoV-2 pseudovirus. We found that Griffithsin was a better inhibitor of hACE2-mediated direct infection when the coronaviral M protein is present compared to when it is absent (possibly providing an explanation regarding why Griffithsin shows better inhibition against authentic SARS-CoV-2 as opposed to pseudotyped viruses, which generally do not contain M) and that Griffithsin was not an effective inhibitor of DC-SIGN-mediated trans-infection. Furthermore, we found that DC-SIGN appeared to mediate trans-infection exclusively via binding to the SARS-CoV-2 spike protein, with no significant effect observed when other viral proteins (M, N, and/or E) were present. These results provide etiological data that may help to direct the development of novel antiviral treatments, either by leveraging Griffithsin binding to the M protein as a novel strategy to prevent SARS-CoV-2 infection or by narrowing efforts to inhibit trans-infection to focus on DC-SIGN binding to SARS-CoV-2 spike protein.
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Affiliation(s)
- Arjan Bains
- Chemistry and Biochemistry, University of California Merced, 5200 North Lake Rd., Merced, CA 95343, USA;
| | - Kathryn Fischer
- Quantitative and Systems Biology, University of California Merced, 5200 North Lake Rd., Merced, CA 95343, USA;
| | - Wenyan Guan
- Materials and Biomaterials Science and Engineering, University of California Merced, 5200 North Lake Rd., Merced, CA 95343, USA;
| | - Patricia J. LiWang
- Molecular Cell Biology, Health Sciences Research Institute, University of California Merced, 5200 North Lake Rd., Merced, CA 95343, USA
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29
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Loaiza JD, Chvatal-Medina M, Hernandez JC, Rugeles MT. Integrase inhibitors: current protagonists in antiretroviral therapy. Immunotherapy 2023; 15:1477-1495. [PMID: 37822251 DOI: 10.2217/imt-2023-0011] [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] [Indexed: 10/13/2023] Open
Abstract
Since HIV was identified as the etiological agent of AIDS, there have been significant advances in antiretroviral therapy (ART) that has reduced morbidity/mortality. Still, the viral genome's high mutation rate, suboptimal ART regimens, incomplete adherence to therapy and poor control of the viral load generate variants resistant to multiple drugs. Licensing over 30 anti-HIV drugs worldwide, including integrase inhibitors, has marked a milestone since they are potent and well-tolerated drugs. In addition, they favor a faster recovery of CD4+ T cells. They also increase the diversity profile of the gut microbiota and reduce inflammatory markers. All of these highlight the importance of including them in different ART regimens.
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Affiliation(s)
- John D Loaiza
- Grupo Inmunovirología, Facultad de medicina, Universidad de Antioquia, Medellín, 050010, Colombia
| | - Mateo Chvatal-Medina
- Grupo Inmunovirología, Facultad de medicina, Universidad de Antioquia, Medellín, 050010, Colombia
| | - Juan C Hernandez
- Infettare, Facultad de medicina, Universidad Cooperativa de Colombia, Medellín, 050012, Colombia
| | - Maria T Rugeles
- Grupo Inmunovirología, Facultad de medicina, Universidad de Antioquia, Medellín, 050010, Colombia
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30
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Van Ryk D, Vimonpatranon S, Hiatt J, Ganesan S, Chen N, McMurry J, Garba S, Min S, Goes LR, Girard A, Yolitz J, Licavoli I, Wei D, Huang D, Soares MA, Martinelli E, Cicala C, Arthos J. The V2 domain of HIV gp120 mimics an interaction between CD4 and integrin ⍺4β7. PLoS Pathog 2023; 19:e1011860. [PMID: 38064524 PMCID: PMC10732398 DOI: 10.1371/journal.ppat.1011860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 12/20/2023] [Accepted: 11/25/2023] [Indexed: 12/21/2023] Open
Abstract
The CD4 receptor, by stabilizing TCR-MHC II interactions, plays a central role in adaptive immunity. It also serves as the HIV docking receptor. The HIV gp120 envelope protein binds directly to CD4. This interaction is a prerequisite for viral entry. gp120 also binds to ⍺4β7, an integrin that is expressed on a subset of memory CD4+ T cells. HIV tropisms for CD4+ T cells and gut tissues are central features of HIV pathogenesis. We report that CD4 binds directly to ⍺4β7 in a dynamic way, consistent with a cis regulatory interaction. The molecular details of this interaction are related to the way in which gp120 interacts with both receptors. Like MAdCAM-1 and VCAM-1, two recognized ligands of ⍺4β7, the binding interface on CD4 includes 2 sites (1° and accessory), distributed across its two N-terminal IgSF domains (D1 and D2). The 1° site includes a sequence in the G β-strand of CD4 D2, KIDIV, that binds directly to ⍺4β7. This pentapeptide sequence occurs infrequently in eukaryotic proteins. However, a closely related and conserved sequence, KLDIV, appears in the V2 domain of gp120. KLDIV mediates gp120-⍺4β7 binding. The accessory ⍺4β7 binding site on CD4 includes Phe43. The Phe43 aromatic ring protrudes outward from one edge of a loop connecting the C'C" strands of CD4 D1. Phe43 is a principal contact for HIV gp120. It interacts with conserved residues in the recessed CD4 binding pocket. Substitution of Phe43 abrogates CD4 binding to both gp120 and ⍺4β7. As such, the interactions of gp120 with both CD4 and ⍺4β7 reflect elements of their interactions with each other. These findings indicate that gp120 specificities for CD4 and ⍺4β7 are interrelated and suggest that selective pressures which produced a CD4 tropic virus that replicates in gut tissues are linked to a dynamic interaction between these two receptors.
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Affiliation(s)
- Donald Van Ryk
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Sinmanus Vimonpatranon
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
- Department of Retrovirology, Armed Forces Research Institute of Medical Sciences–United States Component, Bangkok, Thailand
| | - Joe Hiatt
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Sundar Ganesan
- Biological Imaging Section, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Nathalie Chen
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Jordan McMurry
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Saadiq Garba
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Susie Min
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Livia R. Goes
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
- Oncovirology Program, Instituto Nacional de Câncer, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alexandre Girard
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Jason Yolitz
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Isabella Licavoli
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Danlan Wei
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Dawei Huang
- Lymphoid Malignancies Branch, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Marcelo A. Soares
- Oncovirology Program, Instituto Nacional de Câncer, Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Genetics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Elena Martinelli
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Claudia Cicala
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - James Arthos
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
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31
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Zhou B, Zhou R, Chan JFW, Zeng J, Zhang Q, Yuan S, Liu L, Robinot R, Shan S, Liu N, Ge J, Kwong HYH, Zhou D, Xu H, Chan CCS, Poon VKM, Chu H, Yue M, Kwan KY, Chan CY, Chan CCY, Chik KKH, Du Z, Au KK, Huang H, Man HO, Cao J, Li C, Wang Z, Zhou J, Song Y, Yeung ML, To KKW, Ho DD, Chakrabarti LA, Wang X, Zhang L, Yuen KY, Chen Z. SARS-CoV-2 hijacks neutralizing dimeric IgA for nasal infection and injury in Syrian hamsters 1. Emerg Microbes Infect 2023; 12:2245921. [PMID: 37542391 PMCID: PMC10444022 DOI: 10.1080/22221751.2023.2245921] [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: 04/24/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/06/2023]
Abstract
Prevention of robust severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in nasal turbinate (NT) requires in vivo evaluation of IgA neutralizing antibodies. Here, we report the efficacy of receptor binding domain (RBD)-specific monomeric B8-mIgA1 and B8-mIgA2, and dimeric B8-dIgA1, B8-dIgA2 and TH335-dIgA1 against intranasal SARS-CoV-2 challenge in Syrian hamsters. These antibodies exhibited comparable neutralization potency against authentic virus by competing with human angiotensin converting enzyme-2 (ACE2) receptor for RBD binding. While reducing viral loads in lungs significantly, prophylactic intranasal B8-dIgA unexpectedly led to high amount of infectious viruses and extended damage in NT compared to controls. Mechanistically, B8-dIgA failed to inhibit SARS-CoV-2 cell-to-cell transmission, but was hijacked by the virus through dendritic cell-mediated trans-infection of NT epithelia leading to robust nasal infection. Cryo-EM further revealed B8 as a class II antibody binding trimeric RBDs in 3-up or 2-up/1-down conformation. Neutralizing dIgA, therefore, may engage an unexpected mode of SARS-CoV-2 nasal infection and injury.
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Affiliation(s)
- Biao Zhou
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Runhong Zhou
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Jasper Fuk-Woo Chan
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People’s Republic of China
- Hainan-Medical University – The University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, and Academician Workstation of Hainan Province, Hainan Medical University, Haikou, People’s Republic of China, and The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Jianwei Zeng
- The Ministry of Education Key Laboratory of Protein Science, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center for Biological Structure, Collaborative Innovation Center for Biotherapy, School of Life Sciences, Tsinghua University, Beijing, People’s Republic of China
| | - Qi Zhang
- NexVac Research Center, Comprehensive AIDS Research Center, Center for Infectious Diseases, School of Medicine, Tsinghua University, Beijing, People’s Republic of China
| | - Shuofeng Yuan
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People’s Republic of China
| | - Li Liu
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Rémy Robinot
- Control of Chronic Viral Infections Group, Virus & Immunity Unit, Institute Pasteur, Paris, France; CNRS UMR, Paris, France
| | - Sisi Shan
- NexVac Research Center, Comprehensive AIDS Research Center, Center for Infectious Diseases, School of Medicine, Tsinghua University, Beijing, People’s Republic of China
| | - Na Liu
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People’s Republic of China
| | - Jiwan Ge
- The Ministry of Education Key Laboratory of Protein Science, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center for Biological Structure, Collaborative Innovation Center for Biotherapy, School of Life Sciences, Tsinghua University, Beijing, People’s Republic of China
| | - Hugo Yat-Hei Kwong
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Dongyan Zhou
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Haoran Xu
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Chris Chung-Sing Chan
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Vincent Kwok-Man Poon
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Hin Chu
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People’s Republic of China
| | - Ming Yue
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Ka-Yi Kwan
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Chun-Yin Chan
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Chris Chun-Yiu Chan
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Kenn Ka-Heng Chik
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Zhenglong Du
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Ka-Kit Au
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Haode Huang
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Hiu-On Man
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Jianli Cao
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Cun Li
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Ziyi Wang
- The Ministry of Education Key Laboratory of Protein Science, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center for Biological Structure, Collaborative Innovation Center for Biotherapy, School of Life Sciences, Tsinghua University, Beijing, People’s Republic of China
| | - Jie Zhou
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People’s Republic of China
| | - Youqiang Song
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Man-Lung Yeung
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People’s Republic of China
| | - Kelvin Kai-Wang To
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People’s Republic of China
| | - David D. Ho
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Lisa A. Chakrabarti
- Control of Chronic Viral Infections Group, Virus & Immunity Unit, Institute Pasteur, Paris, France; CNRS UMR, Paris, France
| | - Xinquan Wang
- The Ministry of Education Key Laboratory of Protein Science, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center for Biological Structure, Collaborative Innovation Center for Biotherapy, School of Life Sciences, Tsinghua University, Beijing, People’s Republic of China
| | - Linqi Zhang
- NexVac Research Center, Comprehensive AIDS Research Center, Center for Infectious Diseases, School of Medicine, Tsinghua University, Beijing, People’s Republic of China
| | - Kwok-Yung Yuen
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People’s Republic of China
- Hainan-Medical University – The University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, and Academician Workstation of Hainan Province, Hainan Medical University, Haikou, People’s Republic of China, and The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
| | - Zhiwei Chen
- AIDS Institute, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Pak Shek Kok, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region (SAR), People’s Republic of China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People’s Republic of China
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Banga R, Procopio FA, Lana E, Gladkov GT, Roseto I, Parsons EM, Lian X, Armani-Tourret M, Bellefroid M, Gao C, Kauzlaric A, Foglierini M, Alfageme-Abello O, Sluka SHM, Munoz O, Mastrangelo A, Fenwick C, Muller Y, Mkindi CG, Daubenberger C, Cavassini M, Trunfio R, Déglise S, Corpataux JM, Delorenzi M, Lichterfeld M, Pantaleo G, Perreau M. Lymph node dendritic cells harbor inducible replication-competent HIV despite years of suppressive ART. Cell Host Microbe 2023; 31:1714-1731.e9. [PMID: 37751747 PMCID: PMC11068440 DOI: 10.1016/j.chom.2023.08.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/02/2023] [Accepted: 08/30/2023] [Indexed: 09/28/2023]
Abstract
Although gut and lymph node (LN) memory CD4 T cells represent major HIV and simian immunodeficiency virus (SIV) tissue reservoirs, the study of the role of dendritic cells (DCs) in HIV persistence has long been limited to the blood due to difficulties to access lymphoid tissue samples. In this study, we show that LN migratory and resident DC subpopulations harbor distinct phenotypic and transcriptomic profiles. Interestingly, both LN DC subpopulations contain HIV intact provirus and inducible replication-competent HIV despite the expression of the antiviral restriction factor SAMHD1. Notably, LN DC subpopulations isolated from HIV-infected individuals treated for up to 14 years are transcriptionally silent but harbor replication-competent virus that can be induced upon TLR7/8 stimulation. Taken together, these results uncover a potential important contribution of LN DCs to HIV infection in the presence of ART.
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Affiliation(s)
- Riddhima Banga
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Francesco Andrea Procopio
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Erica Lana
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | | | | | - Elizabeth M Parsons
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA; Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Xiaodong Lian
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA; Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA
| | | | | | - Ce Gao
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Annamaria Kauzlaric
- Translational Bioinformatics and Statistics Department of Oncology, University of Lausanne Swiss Cancer Center, Lausanne, Switzerland
| | - Mathilde Foglierini
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Oscar Alfageme-Abello
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Susanna H M Sluka
- Newborn Screening Switzerland, University Children's Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Olivia Munoz
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Andrea Mastrangelo
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Craig Fenwick
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Yannick Muller
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Catherine Gerald Mkindi
- Ifakara Health Institute, Bagamoyo, United Republic of Tanzania; Department of Medical Parasitology and Infection Biology, Clinical Immunology Unit, Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Claudia Daubenberger
- Department of Medical Parasitology and Infection Biology, Clinical Immunology Unit, Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, 4001 Basel, Switzerland
| | - Matthias Cavassini
- Services of Infectious Diseases, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Rafael Trunfio
- Services of Vascular Surgery, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Sébastien Déglise
- Services of Vascular Surgery, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Jean-Marc Corpataux
- Services of Vascular Surgery, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Mauro Delorenzi
- Translational Bioinformatics and Statistics Department of Oncology, University of Lausanne Swiss Cancer Center, Lausanne, Switzerland
| | - Mathias Lichterfeld
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA; Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Giuseppe Pantaleo
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland; Swiss Vaccine Research Institute, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Matthieu Perreau
- Services of Immunology and Allergy, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland.
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Khan A, Paneerselvam N, Lawson BR. Antiretrovirals to CCR5 CRISPR/Cas9 gene editing - A paradigm shift chasing an HIV cure. Clin Immunol 2023; 255:109741. [PMID: 37611838 PMCID: PMC10631514 DOI: 10.1016/j.clim.2023.109741] [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: 05/31/2023] [Revised: 07/18/2023] [Accepted: 08/13/2023] [Indexed: 08/25/2023]
Abstract
The evolution of drug-resistant viral strains and anatomical and cellular reservoirs of HIV pose significant clinical challenges to antiretroviral therapy. CCR5 is a coreceptor critical for HIV host cell fusion, and a homozygous 32-bp gene deletion (∆32) leads to its loss of function. Interestingly, an allogeneic HSCT from an HIV-negative ∆32 donor to an HIV-1-infected recipient demonstrated a curative approach by rendering the recipient's blood cells resistant to viral entry. Ex vivo gene editing tools, such as CRISPR/Cas9, hold tremendous promise in generating allogeneic HSC grafts that can potentially replace allogeneic ∆32 HSCTs. Here, we review antiretroviral therapeutic challenges, clinical successes, and failures of allogeneic and allogeneic ∆32 HSCTs, and newer exciting developments within CCR5 editing using CRISPR/Cas9 in the search to cure HIV.
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Affiliation(s)
- Amber Khan
- The Scintillon Research Institute, 6868 Nancy Ridge Drive, San Diego, CA 92121, USA
| | | | - Brian R Lawson
- The Scintillon Research Institute, 6868 Nancy Ridge Drive, San Diego, CA 92121, USA.
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34
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Labiod N, Luczkowiak J, Tapia MM, Lasala F, Delgado R. The role of DC-SIGN as a trans-receptor in infection by MERS-CoV. Front Cell Infect Microbiol 2023; 13:1177270. [PMID: 37808906 PMCID: PMC10552186 DOI: 10.3389/fcimb.2023.1177270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 08/28/2023] [Indexed: 10/10/2023] Open
Abstract
DC-SIGN is a C-type lectin expressed in myeloid cells such as immature dendritic cells and macrophages. Through glycan recognition in viral envelope glycoproteins, DC-SIGN has been shown to act as a receptor for a number of viral agents such as HIV, Ebola virus, SARS-CoV, and SARS-CoV-2. Using a system of Vesicular Stomatitis Virus pseudotyped with MERS-CoV spike protein, here, we show that DC-SIGN is partially responsible for MERS-CoV infection of dendritic cells and that DC-SIGN efficiently mediates trans-infection of MERS-CoV from dendritic cells to susceptible cells, indicating a potential role of DC-SIGN in MERS-CoV dissemination and pathogenesis.
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Affiliation(s)
- Nuria Labiod
- Department of Microbiology, Instituto de Investigación Hospital Universitario 12 de Octubre (Imas12), Madrid, Spain
| | - Joanna Luczkowiak
- Department of Microbiology, Instituto de Investigación Hospital Universitario 12 de Octubre (Imas12), Madrid, Spain
| | - María M. Tapia
- Department of Microbiology, Instituto de Investigación Hospital Universitario 12 de Octubre (Imas12), Madrid, Spain
| | - Fátima Lasala
- Department of Microbiology, Instituto de Investigación Hospital Universitario 12 de Octubre (Imas12), Madrid, Spain
| | - Rafael Delgado
- Department of Microbiology, Instituto de Investigación Hospital Universitario 12 de Octubre (Imas12), Madrid, Spain
- Departamento de Medicina, Facultad de Medicina, Universidad Complutense, Madrid, Spain
- CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
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35
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Bhat EA, Ali T, Sajjad N, Kumar R, Bron P. Insights into the structure, functional perspective, and pathogenesis of ZIKV: an updated review. Biomed Pharmacother 2023; 165:115175. [PMID: 37473686 DOI: 10.1016/j.biopha.2023.115175] [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: 06/02/2023] [Revised: 07/04/2023] [Accepted: 07/12/2023] [Indexed: 07/22/2023] Open
Abstract
Zika virus (ZIKV) poses a serious threat to the entire world. The rapid spread of ZIKV and recent outbreaks since 2007 have caused worldwide concern about the virus. Diagnosis is complicated because of the cross-reactivity of the virus with other viral antibodies. Currently, the virus is diagnosed by molecular techniques such as RT-PCR and IgM-linked enzyme immunoassays (MAC-ELISA). Recently, outbreaks and epidemics have been caused by ZIKV, and severe clinical symptoms and congenital malformations have also been associated with the virus. Although most ZIKV infections present with a subclinical or moderate flu-like course of illness, severe symptoms such as Guillain-Barre syndrome in adults and microcephaly in children of infected mothers have also been reported. Because there is no reliable cure for ZIKV and no vaccine is available, the public health response has focused primarily on preventing infection, particularly in pregnant women. A comprehensive approach is urgently needed to combat this infection and stop its spread and imminent threat. In view of this, this review aims to present the current structural and functional viewpoints, structure, etiology, clinical prognosis, and measures to prevent this transmission based on the literature and current knowledge. Moreover, we provide thorough description of the current understanding about ZIKV interaction with receptors, and a comparative examination of its similarities and differences with other viruses.
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Affiliation(s)
- Eijaz Ahmed Bhat
- CBS (Centre de Biologie Structurale), Univ. Montpellier, CNRS, INSERM, 29 rue de Navacelles, 34090 Montpellier, France.
| | - Tufail Ali
- Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Nasreena Sajjad
- Department of Biochemistry, University of Kashmir, Hazratbal, Jammu and Kashmir 190006, India
| | - Rohit Kumar
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi 110021, India
| | - Patrick Bron
- CBS (Centre de Biologie Structurale), Univ. Montpellier, CNRS, INSERM, 29 rue de Navacelles, 34090 Montpellier, France.
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36
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Planes R, Bahraoui E. HIV and SIV Envelope Glycoproteins Interact with Glycolipids and Lipids. Int J Mol Sci 2023; 24:11730. [PMID: 37511488 PMCID: PMC10380495 DOI: 10.3390/ijms241411730] [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: 04/17/2023] [Revised: 07/07/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
The present study demonstrates that, in addition to interacting with galactosylceramide (GalCer), HIV-1, HIV-2, and SIV envelope glycoproteins are able to interact with glucosylceramide (GlcCer), lactosylceramide (LacCer), and ceramide. These interactions were characterized by using three complementary approaches based on molecular binding and physicochemical assays. The binding assays showed that iodinated radiolabeled HIV-1 and HIV-2 glycoproteins (125I-gp) interact physically with GalCer, GlcCer, LacCer, and ceramide previously separated by thin layer chromatography (TLC) or directly coated on a flexible 96-well plate. These interactions are specific as demonstrated, on the one hand, by the dose-dependent inhibition in the presence of various dilutions of immune, but not non-immune, sera, and, on the other hand, by the absence of interaction of these glycolipids/lipids with 125I-IgG used as an unrelated control protein. These interactions were further confirmed in a physicochemical assay, based on the capacity of these glycolipids for insertion in a pre-established monomolecular film, as a model of the cell membrane, with each glycolipid/lipid. The addition of HIV envelope glycoproteins, but not ovomucoid protein used as a negative control, resulted in a rapid increase in surface pressure of the glycolipid/lipid films, thus indirectly confirming their interactions with GalCer, GlcCer, LacCer, and ceramide. In summary, we show that HIV and SIV envelope glycoproteins bind to GalCer, GlcCer, LacCer, and ceramide in a dose-dependent, saturable, and specific manner. These interactions may function as receptors of attachment in order to facilitate infection of CD4 low or negative cells or promote interactions with other receptors leading to the activation of signaling pathways or pathogenesis.
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Affiliation(s)
- Rémi Planes
- INFINITY, INSERM, CNRS, CHU Purpan Toulouse, 31024 Toulouse, France
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37
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Heeregrave EJ, Thomas J, van Capel TM, de Jong EC, Pollakis G, Paxton WA. Glycan dependent phenotype differences of HIV-1 generated from macrophage versus CD4 + T helper cell populations. Front Immunol 2023; 14:1107349. [PMID: 37415979 PMCID: PMC10320205 DOI: 10.3389/fimmu.2023.1107349] [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: 11/24/2022] [Accepted: 06/06/2023] [Indexed: 07/08/2023] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) is able to infect a variety of cell types with differences in entry efficiency and replication kinetics determined by the host cell type or the viral phenotype. The phenotype of the virus produced from these various cell types, including infectivity, co-receptor usage and neutralisation sensitivity, may also be affected by the characteristics of the producing cell. This can be due to incorporation of variant cell-specific molecules or differences in post-translational modifications of the gp41/120 envelope. In this study we produced genetically identical virus strains from macrophages, CD4-enriched lymphocytes as well as Th1 and Th2 CD4+ cell lines and compared each different virus stock for their infectivity in various cell types and sensitivity to neutralisation. In order to study the effect of the producer host cell on the virus phenotype, virus stocks were normalised on infectivity and were sequenced to confirm env gene homogeneity. Virus production by Th1 or Th2 cells did not compromise infectivity of the variant cell types tested. We observed no difference in sensitivity to co-receptor blocking agents upon viral passage through Th1 and Th2 CD4+ cell lineages nor did this affect DC-SIGN-mediated viral capture as measured in a transfer assay to CD4+ lymphocytes. Virus produced by macrophages was comparably sensitive to CC-chemokine inhibition as was virus generated from the array of CD4+ lymphocytes. We identified that virus produced from macrophages was fourteen times more resistant to 2G12 neutralisation than virus produced from CD4+ lymphocytes. Macrophage-produced dual-tropic (R5/X4) virus was six times more efficiently transmitted to CD4+ cells than lymphocyte-derived HIV-1 (p<0.0001) after DCSIGN capture. These results provide further insights to what extent the host cell influences viral phenotype and thereby various aspects of HIV-1 pathogenesis but suggest that viruses generated from Th1 versus Th2 cells are consistent in phenotype.
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Affiliation(s)
- Edwin J. Heeregrave
- Laboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Jordan Thomas
- Department of Clinical Infection, Microbiology and Immunology, Institute of Veterinary and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Toni M. van Capel
- Department of Experimental Immunology, University Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Esther C. de Jong
- Department of Experimental Immunology, University Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Georgios Pollakis
- Department of Experimental Immunology, University Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - William A. Paxton
- Laboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Department of Clinical Infection, Microbiology and Immunology, Institute of Veterinary and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
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38
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Leusmann S, Ménová P, Shanin E, Titz A, Rademacher C. Glycomimetics for the inhibition and modulation of lectins. Chem Soc Rev 2023; 52:3663-3740. [PMID: 37232696 PMCID: PMC10243309 DOI: 10.1039/d2cs00954d] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Indexed: 05/27/2023]
Abstract
Carbohydrates are essential mediators of many processes in health and disease. They regulate self-/non-self- discrimination, are key elements of cellular communication, cancer, infection and inflammation, and determine protein folding, function and life-times. Moreover, they are integral to the cellular envelope for microorganisms and participate in biofilm formation. These diverse functions of carbohydrates are mediated by carbohydrate-binding proteins, lectins, and the more the knowledge about the biology of these proteins is advancing, the more interfering with carbohydrate recognition becomes a viable option for the development of novel therapeutics. In this respect, small molecules mimicking this recognition process become more and more available either as tools for fostering our basic understanding of glycobiology or as therapeutics. In this review, we outline the general design principles of glycomimetic inhibitors (Section 2). This section is then followed by highlighting three approaches to interfere with lectin function, i.e. with carbohydrate-derived glycomimetics (Section 3.1), novel glycomimetic scaffolds (Section 3.2) and allosteric modulators (Section 3.3). We summarize recent advances in design and application of glycomimetics for various classes of lectins of mammalian, viral and bacterial origin. Besides highlighting design principles in general, we showcase defined cases in which glycomimetics have been advanced to clinical trials or marketed. Additionally, emerging applications of glycomimetics for targeted protein degradation and targeted delivery purposes are reviewed in Section 4.
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Affiliation(s)
- Steffen Leusmann
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Petra Ménová
- University of Chemistry and Technology, Prague, Technická 5, 16628 Prague 6, Czech Republic
| | - Elena Shanin
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Christoph Rademacher
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
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39
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Iida N, Kawahara M, Hirota R, Shibagaki Y, Hattori S, Morikawa Y. A Proteomic Analysis of Detergent-Resistant Membranes in HIV Virological Synapse: The Involvement of Vimentin in CD4 Polarization. Viruses 2023; 15:1266. [PMID: 37376566 DOI: 10.3390/v15061266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
The cell-cell contact between HIV-1-infected and uninfected cells forms a virological synapse (VS) to allow for efficient HIV-1 transmission. Not only are HIV-1 components polarized and accumulate at cell-cell interfaces, but viral receptors and lipid raft markers are also. To better understand the nature of the HIV-1 VS, detergent-resistant membrane (DRM) fractions were isolated from an infected-uninfected cell coculture and compared to those from non-coculture samples using 2D fluorescence difference gel electrophoresis. Mass spectrometry revealed that ATP-related enzymes (ATP synthase subunit and vacuolar-type proton ATPase), protein translation factors (eukaryotic initiation factor 4A and mitochondrial elongation factor Tu), protein quality-control-related factors (protein disulfide isomerase A3 and 26S protease regulatory subunit), charged multivesicular body protein 4B, and vimentin were recruited to the VS. Membrane flotation centrifugation of the DRM fractions and confocal microscopy confirmed these findings. We further explored how vimentin contributes to the HIV-1 VS and found that vimentin supports HIV-1 transmission through the recruitment of CD4 to the cell-cell interface. Since many of the molecules identified in this study have previously been suggested to be involved in HIV-1 infection, we suggest that a 2D difference gel analysis of DRM-associated proteins may reveal the molecules that play crucial roles in HIV-1 cell-cell transmission.
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Affiliation(s)
- Naoyuki Iida
- School of Pharmacy, Kitasato University, Shirokane 5-9-1, Minato-ku, Tokyo 108-8641, Japan
| | - Madoka Kawahara
- Omura Satoshi Memorial Institute and Graduate School for Infection Control, Kitasato University, Shirokane 5-9-1, Minato-ku, Tokyo 108-8641, Japan
| | - Riku Hirota
- Omura Satoshi Memorial Institute and Graduate School for Infection Control, Kitasato University, Shirokane 5-9-1, Minato-ku, Tokyo 108-8641, Japan
| | - Yoshio Shibagaki
- School of Pharmacy, Kitasato University, Shirokane 5-9-1, Minato-ku, Tokyo 108-8641, Japan
| | - Seisuke Hattori
- School of Pharmacy, Kitasato University, Shirokane 5-9-1, Minato-ku, Tokyo 108-8641, Japan
| | - Yuko Morikawa
- Omura Satoshi Memorial Institute and Graduate School for Infection Control, Kitasato University, Shirokane 5-9-1, Minato-ku, Tokyo 108-8641, Japan
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40
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Gupta J, Malik MZ, Chaturvedi M, Mishra M, Mishra SK, Grover A, Ray AK, Chaturvedi R. SARS CoV-2 spike protein variants exploit DC-SIGN/DC-SIGNR receptor for evolution and severity: an in-silico insight. Virusdisease 2023:1-19. [PMID: 37363363 PMCID: PMC10206574 DOI: 10.1007/s13337-023-00820-3] [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: 11/23/2022] [Accepted: 04/10/2023] [Indexed: 06/28/2023] Open
Abstract
The Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) is related with the COVID-19 pandemic. Recent spike protein variations have had an effect on the transmission of the virus. In addition to ACE-2, spike proteins can employ DC-SIGN and its analogous receptor, DC-SIGNR, for host evasion. Spike variations in the DC-SIGN interaction region and role of DC-SIGN in immune evasion have not been well defined. To understand the spike protein variations and their binding mode, phylogenetic analysis of the complete GISAID (Global Initiative for Sharing Avian Influenza Data) data of the SARS-CoV-2 spike protein was considered. In addition, an in silico knockout network evaluation of the SARS-CoV-2 single-cell transcriptome was conducted to determine the key role of DC-SIGN/R in immunological dysregulation. Within the DC-SIGN-interacting region of the SARS-CoV spike protein, the spike protein of SARS-CoV-2 displayed remarkable similarity to the SARS-CoV spike protein. Surprisingly, the phylogenetic analysis revealed that the SARS-CoV-2's spike exhibited significantly diverse variants in the DC-SIGN interaction domain, which altered the frequency of these variants. The variation within the DC-SIGN-interacting domain of spike proteins affected the binding of a limited number of variants with DC-SIGN and DC-SIGNR and affected their evolution. MMGBSA binding free energies evaluation differed for variants from those of the wild type, suggesting the influence of substitution mutations on the interaction pattern. In silico knockout network analysis of the single-cell transcriptome of Bronchoalveolar Lavage and peripheral blood mononuclear cells revealed that SARS-CoV-2 altered DC-SIGN/R signaling. Early surveillance of diverse SARS-CoV-2 strains could preclude a worsening of the pandemic and facilitate the development of an optimum vaccine against variations. The spike Receptor Binding Domain genetic variants are thought to boost SARS CoV-2 immune evasion, resulting in its higher longevity. Supplementary Information The online version contains supplementary material available at 10.1007/s13337-023-00820-3.
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Affiliation(s)
- Jyoti Gupta
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
| | - Md. Zubbair Malik
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman, 15462 Kuwait
| | - Maya Chaturvedi
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
| | - Mohit Mishra
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
| | - Surbhi Kriti Mishra
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067 India
| | - Abhinav Grover
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
| | - Ashwini Kumar Ray
- Department of Environmental Studies, University of Delhi, New Delhi, 11007 India
| | - Rupesh Chaturvedi
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
- Special Center for Systems Medicine, Jawaharlal Nehru University, New Delhi, 110067 India
- Nanofludiks Research Pvt. Ltd., JNU-Atal Incubation Center, Jawaharlal Nehru University, New Delhi, 110067 India
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Viljoen A, Vercellone A, Chimen M, Gaibelet G, Mazères S, Nigou J, Dufrêne YF. Nanoscale clustering of mycobacterial ligands and DC-SIGN host receptors are key determinants for pathogen recognition. SCIENCE ADVANCES 2023; 9:eadf9498. [PMID: 37205764 PMCID: PMC10198640 DOI: 10.1126/sciadv.adf9498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 04/14/2023] [Indexed: 05/21/2023]
Abstract
The bacterial pathogen Mycobacterium tuberculosis binds to the C-type lectin DC-SIGN (dendritic cell-specific intercellular adhesion molecule 3-grabbing nonintegrin) on dendritic cells to evade the immune system. While DC-SIGN glycoconjugate ligands are ubiquitous among mycobacterial species, the receptor selectively binds pathogenic species from the M. tuberculosis complex (MTBC). Here, we unravel the molecular mechanism behind this intriguing selective recognition by means of a multidisciplinary approach combining single-molecule atomic force microscopy with Förster resonance energy transfer and bioassays. Molecular recognition imaging of mycobacteria demonstrates that the distribution of DC-SIGN ligands markedly differs between Mycobacterium bovis Bacille Calmette-Guérin (BCG) (model MTBC species) and Mycobacterium smegmatis (non-MTBC species), the ligands being concentrated into dense nanodomains on M. bovis BCG. Upon bacteria-host cell adhesion, ligand nanodomains induce the recruitment and clustering of DC-SIGN. Our study highlights the key role of clustering of both ligands on MTBC species and DC-SIGN host receptors in pathogen recognition, a mechanism that might be widespread in host-pathogen interactions.
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Affiliation(s)
- Albertus Viljoen
- Louvain Institute of Biomolecular Science and Technology, UCLouvain, Croix du Sud, 4-5, bte L7.07.07., B-1348 Louvain-la-Neuve, Belgium
| | - Alain Vercellone
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III - Paul Sabatier (UPS), Toulouse, France
| | - Myriam Chimen
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III - Paul Sabatier (UPS), Toulouse, France
| | - Gérald Gaibelet
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III - Paul Sabatier (UPS), Toulouse, France
| | - Serge Mazères
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III - Paul Sabatier (UPS), Toulouse, France
| | - Jérôme Nigou
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III - Paul Sabatier (UPS), Toulouse, France
| | - Yves F. Dufrêne
- Louvain Institute of Biomolecular Science and Technology, UCLouvain, Croix du Sud, 4-5, bte L7.07.07., B-1348 Louvain-la-Neuve, Belgium
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Papin L, Lehmann M, Lagisquet J, Maarifi G, Robert-Hebmann V, Mariller C, Guerardel Y, Espert L, Haucke V, Blanchet FP. The Autophagy Nucleation Factor ATG9 Forms Nanoclusters with the HIV-1 Receptor DC-SIGN and Regulates Early Antiviral Autophagy in Human Dendritic Cells. Int J Mol Sci 2023; 24:ijms24109008. [PMID: 37240354 DOI: 10.3390/ijms24109008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Dendritic cells (DC) are critical cellular mediators of host immunity, notably by expressing a broad panel of pattern recognition receptors. One of those receptors, the C-type lectin receptor DC-SIGN, was previously reported as a regulator of endo/lysosomal targeting through functional connections with the autophagy pathway. Here, we confirmed that DC-SIGN internalization intersects with LC3+ autophagy structures in primary human monocyte-derived dendritic cells (MoDC). DC-SIGN engagement promoted autophagy flux which coincided with the recruitment of ATG-related factors. As such, the autophagy initiation factor ATG9 was found to be associated with DC-SIGN very early upon receptor engagement and required for an optimal DC-SIGN-mediated autophagy flux. The autophagy flux activation upon DC-SIGN engagement was recapitulated using engineered DC-SIGN-expressing epithelial cells in which ATG9 association with the receptor was also confirmed. Finally, Stimulated emission depletion (STED) microscopy performed in primary human MoDC revealed DC-SIGN-dependent submembrane nanoclusters formed with ATG9, which was required to degrade incoming viruses and further limit DC-mediated transmission of HIV-1 infection to CD4+ T lymphocytes. Our study unveils a physical association between the Pattern Recognition Receptor DC-SIGN and essential components of the autophagy pathway contributing to early endocytic events and the host's antiviral immune response.
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Affiliation(s)
- Laure Papin
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Justine Lagisquet
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Ghizlane Maarifi
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Véronique Robert-Hebmann
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Christophe Mariller
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France
| | - Yann Guerardel
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France
- Institute for Glyco-Core Research (iGCORE), Gifu University, Gifu 501-1112, Japan
| | - Lucile Espert
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Volker Haucke
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Fabien P Blanchet
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
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Porkolab V, Lepšík M, Ordanini S, St John A, Le Roy A, Thépaut M, Paci E, Ebel C, Bernardi A, Fieschi F. Powerful Avidity with a Limited Valency for Virus-Attachment Blockers on DC-SIGN: Combining Chelation and Statistical Rebinding with Structural Plasticity of the Receptor. ACS CENTRAL SCIENCE 2023; 9:709-718. [PMID: 37122470 PMCID: PMC10141607 DOI: 10.1021/acscentsci.2c01136] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Indexed: 05/03/2023]
Abstract
The C-type lectin receptor DC-SIGN has been highlighted as the coreceptor for the spike protein of the SARS-CoV-2 virus. A multivalent glycomimetic ligand, Polyman26, has been found to inhibit DC-SIGN-dependent trans-infection of SARS-CoV-2. The molecular details underlying avidity generation in such systems remain poorly characterized. In an effort to dissect the contribution of the known multivalent effects - chelation, clustering, and statistical rebinding - we studied a series of dendrimer constructs related to Polyman26 with a rod core rationally designed to engage simultaneously two binding sites of the tetrameric DC-SIGN. Binding properties of these compounds have been studied with a range of biophysical techniques, including recently developed surface plasmon resonance oriented-surface methodology. Using molecular modeling we addressed, for the first time, the impact of the carbohydrate recognition domains' flexibility of the DC-SIGN tetramer on the compounds' avidity. We were able to gain deeper insight into the role of different binding modes, which in combination produce a construct with a nanomolar affinity despite a limited valency. This multifaceted experimental-theoretical approach provides detailed understanding of multivalent ligand/multimeric protein interactions which can lead to future predictions. This work opens the way to the development of new virus attachment blockers adapted to different C-type lectin receptors of viruses.
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Affiliation(s)
- Vanessa Porkolab
- Univ.
Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 38000 Grenoble, France
| | - Martin Lepšík
- Univ.
Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, Flemingovo nam. 2, Prague 6, 166 10, Czechia
| | - Stefania Ordanini
- Universita’
degli Studi di Milano, Dipartimento di Chimica, via Golgi 19, 20133, Milano, Italy
| | - Alexander St John
- Astbury
Centre & School of Molecular and Cellular Biology, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - Aline Le Roy
- Univ.
Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 38000 Grenoble, France
| | - Michel Thépaut
- Univ.
Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 38000 Grenoble, France
| | - Emanuele Paci
- Department
of Physics and Astronomy “Augusto Righi”, University of Bologna, Via Zamboni, 33, 40126, Bologna, Italy
| | - Christine Ebel
- Univ.
Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 38000 Grenoble, France
| | - Anna Bernardi
- Universita’
degli Studi di Milano, Dipartimento di Chimica, via Golgi 19, 20133, Milano, Italy
| | - Franck Fieschi
- Univ.
Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 38000 Grenoble, France
- Institut
Universitaire de France (IUF), 1 rue Descartes, 75231 Paris, France
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Calado M, Pires D, Conceição C, Ferreira R, Santos-Costa Q, Anes E, Azevedo-Pereira JM. Cell-to-Cell Transmission of HIV-1 and HIV-2 from Infected Macrophages and Dendritic Cells to CD4+ T Lymphocytes. Viruses 2023; 15:v15051030. [PMID: 37243118 DOI: 10.3390/v15051030] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Macrophages (Mø) and dendritic cells (DCs) are key players in human immunodeficiency virus (HIV) infection and pathogenesis. They are essential for the spread of HIV to CD4+ T lymphocytes (TCD4+) during acute infection. In addition, they constitute a persistently infected reservoir in which viral production is maintained for long periods of time during chronic infection. Defining how HIV interacts with these cells remains a critical area of research to elucidate the pathogenic mechanisms of acute spread and sustained chronic infection and transmission. To address this issue, we analyzed a panel of phenotypically distinct HIV-1 and HIV-2 primary isolates for the efficiency with which they are transferred from infected DCs or Mø to TCD4+. Our results show that infected Mø and DCs spread the virus to TCD4+ via cell-free viral particles in addition to other alternative pathways. We demonstrate that the production of infectious viral particles is induced by the co-culture of different cell populations, indicating that the contribution of cell signaling driven by cell-to-cell contact is a trigger for viral replication. The results obtained do not correlate with the phenotypic characteristics of the HIV isolates, namely their co-receptor usage, nor do we find significant differences between HIV-1 and HIV-2 in terms of cis- or trans-infection. The data presented here may help to further elucidate the cell-to-cell spread of HIV and its importance in HIV pathogenesis. Ultimately, this knowledge is critical for new therapeutic and vaccine approaches.
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Affiliation(s)
- Marta Calado
- Host-Pathogen Interactions Unit, Research Institute for Medicines, iMed-ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - David Pires
- Host-Pathogen Interactions Unit, Research Institute for Medicines, iMed-ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Center for Interdisciplinary Research in Health, Católica Medical School, Universidade Católica Portuguesa, Estrada Octávio Pato, 2635-631 Sintra, Portugal
| | - Carolina Conceição
- Host-Pathogen Interactions Unit, Research Institute for Medicines, iMed-ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Rita Ferreira
- Host-Pathogen Interactions Unit, Research Institute for Medicines, iMed-ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Quirina Santos-Costa
- Host-Pathogen Interactions Unit, Research Institute for Medicines, iMed-ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Elsa Anes
- Host-Pathogen Interactions Unit, Research Institute for Medicines, iMed-ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - José Miguel Azevedo-Pereira
- Host-Pathogen Interactions Unit, Research Institute for Medicines, iMed-ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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Diskin R. A structural perspective on the evolution of viral/cellular macromolecular complexes within the arenaviridae family of viruses. Curr Opin Struct Biol 2023; 79:102561. [PMID: 36857816 DOI: 10.1016/j.sbi.2023.102561] [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: 09/19/2022] [Revised: 01/16/2023] [Accepted: 01/30/2023] [Indexed: 03/02/2023]
Abstract
Viruses are obligatory parasites that can replicate only inside host cells. Therefore, the evolutionary drive to enter cells is immense, leading to diversification in the cell-entry strategies of viruses. One of the most critical steps for cell entry is the recognition of the target cell, a process driven by the formation of viral/host macromolecular complexes. The accumulation of recent structural data for viruses within the arenaviridae family allows us to examine how different viral species from the same viral family utilize evolutionarily-related viral glycoproteins to engage with a variety of different cellular receptors. These structural data, compared to other viruses from the coronaviridae family, hint about possible routes that such viruses use for evolving new receptor-binding capabilities, allowing them to switch from one receptor to another.
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Affiliation(s)
- Ron Diskin
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot, 7610001, Israel.
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Becker J, Terracciano R, Yilmaz G, Napier R, Becer CR. Step-Growth Glycopolymers with a Defined Tacticity for Selective Carbohydrate-Lectin Recognition. Biomacromolecules 2023; 24:1924-1933. [PMID: 36976928 PMCID: PMC10091353 DOI: 10.1021/acs.biomac.3c00133] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Glycopolymers are potent candidates for biomedical applications by exploiting multivalent carbohydrate-lectin interactions. Owing to their specific recognition capabilities, glycosylated polymers can be utilized for targeted drug delivery to certain cell types bearing the corresponding lectin receptors. A fundamental challenge in glycopolymer research, however, is the specificity of recognition to receptors binding to the same sugar unit (e.g., mannose). Variation of polymer backbone chirality has emerged as an effective method to distinguish between lectins on a molecular level. Herein, we present a facile route toward producing glycopolymers with a defined tacticity based on a step-growth polymerization technique using click chemistry. A set of polymers have been fabricated and further functionalized with mannose moieties to enable lectin binding to receptors relevant to the immune system (mannose-binding lectin, dendritic cell-specific intercellular adhesion molecule-3-grabbing non-integrin, and dendritic and thymic epithelial cell-205). Surface plasmon resonance spectrometry was employed to determine the kinetic parameters of the step-growth glycopolymers. The results highlight the importance of structural complexity in advancing glycopolymer synthesis, yet multivalency remains a main driving force in lectin recognition.
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Affiliation(s)
- Jonas Becker
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | | | - Gokhan Yilmaz
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Richard Napier
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, U.K
| | - C Remzi Becer
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
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Kalantari P, Shecter I, Hopkins J, Pilotta Gois A, Morales Y, Harandi BF, Sharma S, Stadecker MJ. The balance between gasdermin D and STING signaling shapes the severity of schistosome immunopathology. Proc Natl Acad Sci U S A 2023; 120:e2211047120. [PMID: 36943884 PMCID: PMC10068786 DOI: 10.1073/pnas.2211047120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 02/03/2023] [Indexed: 03/23/2023] Open
Abstract
There is significant disease heterogeneity among mouse strains infected with the helminth Schistosoma mansoni. Here, we uncover a unique balance in two critical innate pathways governing the severity of disease. In the low-pathology setting, parasite egg-stimulated dendritic cells (DCs) induce robust interferon (IFN)β production, which is dependent on the cyclic GMP-AMP synthase (cGAS)/stimulator of interferon genes (STING) cytosolic DNA sensing pathway and results in a Th2 response with suppression of proinflammatory cytokine production and Th17 cell activation. IFNβ induces signal transducer and activator of transcription (STAT)1, which suppresses CD209a, a C-type lectin receptor associated with severe disease. In contrast, in the high-pathology setting, enhanced DC expression of the pore-forming protein gasdermin D (Gsdmd) results in reduced expression of cGAS/STING, impaired IFNβ, and enhanced pyroptosis. Our findings demonstrate that cGAS/STING signaling represents a unique mechanism inducing protective type I IFN, which is counteracted by Gsdmd.
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Affiliation(s)
- Parisa Kalantari
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
- Department of Veterinary and Biomedical Sciences, Center for Molecular Immunology and Infectious Disease, The Pennsylvania State University, University Park, PA16802
| | - Ilana Shecter
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
| | - Jacob Hopkins
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
| | - Andrea Pilotta Gois
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
| | - Yoelkys Morales
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
| | - Bijan F. Harandi
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
| | - Shruti Sharma
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
| | - Miguel J. Stadecker
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
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Mendes-Aguiar CDO, Kitahara-Oliveira MY, de Almeida ACO, Pereira-Oliveira M, de Oliveira Neto MP, Pirmez C, Sampaio EP, Gomes-Silva A, Da-Cruz AM. DC-SIGN receptor is expressed by cells from cutaneous leishmaniasis lesions and differentially binds to Leishmania (Viannia) braziliensis and L. (Leishmania) amazonensis promastigotes. Mem Inst Oswaldo Cruz 2023; 118:e220044. [PMID: 36995847 PMCID: PMC10042235 DOI: 10.1590/0074-02760220044] [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: 04/11/2022] [Accepted: 02/06/2023] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND Dendritic cells (DCs) specific intercellular adhesion molecule (ICAM)-3-grabbing non integrin receptor (DC-SIGN) binds to subgenera Leishmania promastigotes mediating its interaction with DC and neutrophils, potentially influencing the infection outcome. OBJECTIVES In this work, we investigated whether DC-SIGN receptor is expressed in cells from cutaneous leishmaniasis (CL) lesions as well as the in vitro binding pattern of Leishmania (Viannia) braziliensis (Lb) and L. (L.) amazonensis (La) promastigotes. METHODS DC-SIGN receptor was labeled by immunohistochemistry in cryopreserved CL tissue fragments. In vitro binding assay with CFSE-labeled Lb or La promastigotes and RAJI-transfecting cells expressing DC-SIGN (DC-SIGNPOS) or mock-transfected (DC-SIGNNEG) were monitored by flow cytometry at 2 h, 24 h and 48 h in co-culture. RESULTS In CL lesion infiltrate, DC-SIGNPOS cells were present in the dermis and near the epidermis. Both Lb and La bind to DC-SIGNPOS cells, while binding to DC-SIGNNEG was low. La showed precocious and higher affinity to DC-SIGNhi population than to DC-SIGNlow, while Lb binding was similar in these populations. CONCLUSION Our results demonstrate that DC-SIGN receptor is present in L. braziliensis CL lesions and interact with Lb promastigotes. Moreover, the differences in the binding pattern to Lb and La suggest DC-SIGN can influence in a difference way the intake of the parasites at the first hours after Leishmania infection. These results raise the hypothesis that DC-SIGN receptor could participate in the immunopathogenesis of American tegumentary leishmaniasis accounting for the differences in the outcome of the Leishmania spp. infection.
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Affiliation(s)
- Carolina de O Mendes-Aguiar
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Interdisciplinar de Pesquisas Médicas, Rio de Janeiro, RJ, Brasil
- Universidade Federal do Rio Grande do Norte, Instituto de Medicina Tropical do Rio Grande do Norte, Natal, RN, Brasil
| | - Milene Yoko Kitahara-Oliveira
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Interdisciplinar de Pesquisas Médicas, Rio de Janeiro, RJ, Brasil
| | - Ana Cristina Oliveira de Almeida
- Universidade do Estado do Rio de Janeiro, Faculdade de Ciências Médicas, Departamento de Microbiologia, Imunologia e Parasitologia, Rio de Janeiro, RJ, Brasil
| | - Marcia Pereira-Oliveira
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Interdisciplinar de Pesquisas Médicas, Rio de Janeiro, RJ, Brasil
| | - Manoel Paes de Oliveira Neto
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia Evandro Chagas, Laboratório de Pesquisa Clínica em Micobacterioses, Rio de Janeiro, RJ, Brasil
| | - Claude Pirmez
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Interdisciplinar de Pesquisas Médicas, Rio de Janeiro, RJ, Brasil
| | - Elizabeth Pereira Sampaio
- National Institute of Allergy and Infectious Diseases, Laboratory of Clinical Immunology and Microbiology, Bethesda, MD, USA
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Hanseníase, Rio de Janeiro, RJ, Brasil
| | - Adriano Gomes-Silva
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Interdisciplinar de Pesquisas Médicas, Rio de Janeiro, RJ, Brasil
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia Evandro Chagas, Laboratório de Pesquisa Clínica em Micobacterioses, Rio de Janeiro, RJ, Brasil
| | - Alda Maria Da-Cruz
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Interdisciplinar de Pesquisas Médicas, Rio de Janeiro, RJ, Brasil
- Universidade do Estado do Rio de Janeiro, Faculdade de Ciências Médicas, Departamento de Microbiologia, Imunologia e Parasitologia, Rio de Janeiro, RJ, Brasil
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Hooper J, Budhadev D, Fernandez Ainaga DL, Hondow N, Zhou D, Guo Y. Polyvalent Glycan Functionalized Quantum Nanorods as Mechanistic Probes for Shape-Selective Multivalent Lectin-Glycan Recognition. ACS APPLIED NANO MATERIALS 2023; 6:4201-4213. [PMID: 37006911 PMCID: PMC10043877 DOI: 10.1021/acsanm.2c05247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/24/2023] [Indexed: 06/19/2023]
Abstract
Multivalent lectin-glycan interactions (MLGIs) are widespread in biology and hold the key to many therapeutic applications. However, the underlying structural and biophysical mechanisms for many MLGIs remain poorly understood, limiting our ability to design glycoconjugates to potently target specific MLGIs for therapeutic intervention. Glycosylated nanoparticles have emerged as a powerful biophysical probe for MLGIs, although how nanoparticle shape affects the MLGI molecular mechanisms remains largely unexplored. Herein, we have prepared fluorescent quantum nanorods (QRs), densely coated with α-1,2-manno-biose ligands (QR-DiMan), as multifunctional probes to investigate how scaffold geometry affects the MLGIs of a pair of closely related, tetrameric viral receptors, DC-SIGN and DC-SIGNR. We have previously shown that a DiMan-capped spherical quantum dot (QD-DiMan) gives weak cross-linking interactions with DC-SIGNR but strong simultaneous binding with DC-SIGN. Against the elongated QR-DiMan, DC-SIGN retains similarly strong simultaneous binding of all four binding sites with a single QR-DiMan (apparent K d ≈ 0.5 nM, ∼1.8 million-fold stronger than the corresponding monovalent binding), while DC-SIGNR gives both weak cross-linking and strong individual binding interactions, resulting in a larger binding affinity enhancement than that with QD-DiMan. S/TEM analysis of QR-DiMan-lectin assemblies reveals that DC-SIGNR's different binding modes arise from the different nanosurface curvatures of the QR scaffold. The glycan display at the spherical ends presents too high a steric barrier for DC-SIGNR to bind with all four binding sites; thus, it cross-links between two QR-DiMan to maximize binding multivalency, whereas the more planar character of the cylindrical center allows the glycans to bridge all binding sites in DC-SIGNR. This work thus establishes glycosylated QRs as a powerful biophysical probe for MLGIs not only to provide quantitative binding affinities and binding modes but also to demonstrate the specificity of multivalent lectins in discriminating different glycan displays in solution, dictated by the scaffold curvature.
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Affiliation(s)
- James Hooper
- School
of Food Science and Nutrition and Astbury Centre for Structural Molecular
Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Darshita Budhadev
- School
of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | | | - Nicole Hondow
- School
of Chemical and Process Engineering, University
of Leeds, Leeds LS2 9JT, United
Kingdom
| | - Dejian Zhou
- School
of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Yuan Guo
- School
of Food Science and Nutrition and Astbury Centre for Structural Molecular
Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
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50
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Alves I, Santos-Pereira B, de la Cruz N, Campar A, Pinto V, Rodrigues PM, Araújo M, Santos S, Ramos-Soriano J, Vasconcelos C, Silva R, Afonso N, Mira F, Barrias CC, Alves NL, Rojo J, Santos L, Marinho A, Pinho SS. Host-derived mannose glycans trigger a pathogenic γδ T cell/IL-17a axis in autoimmunity. Sci Transl Med 2023; 15:eabo1930. [PMID: 36921032 DOI: 10.1126/scitranslmed.abo1930] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Autoimmune diseases are life-threatening disorders that cause increasing disability over time. Systemic lupus erythematosus (SLE) and other autoimmune diseases arise when immune stimuli override mechanisms of self-tolerance. Accumulating evidence has demonstrated that protein glycosylation is substantially altered in autoimmune disease development, but the mechanisms by which glycans trigger these autoreactive immune responses are still largely unclear. In this study, we found that presence of microbial-associated mannose structures at the surface of the kidney triggers the recognition of DC-SIGN-expressing γδ T cells, inducing a pathogenic interleukin-17a (IL-17a)-mediated autoimmune response. Mice lacking Mgat5, which have a higher abundance of mannose structures in the kidney, displayed increased γδ T cell infiltration into the kidney that was associated with spontaneous development of lupus in older mice. N-acetylglucosamine supplementation, which promoted biosynthesis of tolerogenic branched N-glycans in the kidney, was found to inhibit γδ T cell infiltration and control disease development. Together, this work reveals a mannose-γδ T cell-IL-17a axis in SLE immunopathogenesis and highlights glycometabolic reprogramming as a therapeutic strategy for autoimmune disease treatment.
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Affiliation(s)
- Inês Alves
- i3s - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal.,Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - Beatriz Santos-Pereira
- i3s - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal.,Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - Noelia de la Cruz
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, 41092 Sevilla, Spain
| | - Ana Campar
- i3s - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal.,ICBAS-School of Medicine and Biomedical Sciences, University of Porto, 4050-313 Porto, Portugal.,Department of Clinical Immunology, Centro Hospitalar Universitário do Porto, 4099-001 Porto, Portugal
| | - Vanda Pinto
- i3s - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal
| | - Pedro M Rodrigues
- i3s - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal
| | - Marco Araújo
- i3s - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal
| | - Sofia Santos
- Nephrology Department, Centro Hospitalar e Universitário do Porto, 4099-001 Porto, Portugal
| | - Javier Ramos-Soriano
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, 41092 Sevilla, Spain
| | - Carlos Vasconcelos
- ICBAS-School of Medicine and Biomedical Sciences, University of Porto, 4050-313 Porto, Portugal.,Department of Clinical Immunology, Centro Hospitalar Universitário do Porto, 4099-001 Porto, Portugal
| | - Roberto Silva
- Department of Pathology, Hospital Universitário São João do Porto, 4200-319 Porto, Portugal
| | - Nuno Afonso
- Department of Nephrology, Centro Hospitalar Universitário de Coimbra, 3004-561 Coimbra, Portugal
| | - Filipe Mira
- Department of Nephrology, Centro Hospitalar Universitário de Coimbra, 3004-561 Coimbra, Portugal
| | - Cristina C Barrias
- i3s - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal
| | - Nuno L Alves
- i3s - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal
| | - Javier Rojo
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, 41092 Sevilla, Spain
| | - Lélita Santos
- Department of Internal Medicine, Centro Hospitalar Universitário de Coimbra, 3004-561 Coimbra, Portugal
| | - António Marinho
- ICBAS-School of Medicine and Biomedical Sciences, University of Porto, 4050-313 Porto, Portugal.,Department of Clinical Immunology, Centro Hospitalar Universitário do Porto, 4099-001 Porto, Portugal
| | - Salomé S Pinho
- i3s - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal.,Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal.,ICBAS-School of Medicine and Biomedical Sciences, University of Porto, 4050-313 Porto, Portugal
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