Inhibitory Siglec-sialic acid interactions in balancing immunological activation and tolerance during viral infections

Summary: Siglecs are a family of emerging glyco-immune checkpoints. Inhibiting them can enhance the functions of several types of immune cells, whereas engaging them can reduce hyper-inflammation and hyper-activation of immune functions. Siglec-sialoglycan interactions play an important role in modu...

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Main Authors: Pratima Saini, Opeyemi S. Adeniji, Mohamed Abdel-Mohsen
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:EBioMedicine
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352396422005369
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author Pratima Saini
Opeyemi S. Adeniji
Mohamed Abdel-Mohsen
author_facet Pratima Saini
Opeyemi S. Adeniji
Mohamed Abdel-Mohsen
author_sort Pratima Saini
collection DOAJ
description Summary: Siglecs are a family of emerging glyco-immune checkpoints. Inhibiting them can enhance the functions of several types of immune cells, whereas engaging them can reduce hyper-inflammation and hyper-activation of immune functions. Siglec-sialoglycan interactions play an important role in modulating immunological functions during cancer, however, their roles in regulating immunological equilibrium during viral infections is less clear. In this review, we discuss the documented and potential roles of inhibitory Siglecs in balancing immune activation and tolerance during viral infections and consider how this balance could affect both the desired anti-viral immunological functions and the unwanted hyper- or chronic inflammation. Finally, we discuss the opportunities to target the Siglec immunological switches to reach an immunological balance during viral infections: inhibiting specific Siglec-sialoglycan interactions when maximum anti-viral immune responses are needed, or inducing other interactions when preventing excessive inflammation or reducing chronic immune activation are the goals.
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spelling doaj.art-0925d9ecf0974676ba6101e034387f5e2022-12-22T02:28:25ZengElsevierEBioMedicine2352-39642022-12-0186104354Inhibitory Siglec-sialic acid interactions in balancing immunological activation and tolerance during viral infectionsPratima Saini0Opeyemi S. Adeniji1Mohamed Abdel-Mohsen2The Wistar Institute, Philadelphia, PA, 19104, USAThe Wistar Institute, Philadelphia, PA, 19104, USACorresponding author. Vaccine and Immunotherapy Center, The Wistar Institute, 3601 Spruce Street, Philadelphia, PA 19104, USA.; The Wistar Institute, Philadelphia, PA, 19104, USASummary: Siglecs are a family of emerging glyco-immune checkpoints. Inhibiting them can enhance the functions of several types of immune cells, whereas engaging them can reduce hyper-inflammation and hyper-activation of immune functions. Siglec-sialoglycan interactions play an important role in modulating immunological functions during cancer, however, their roles in regulating immunological equilibrium during viral infections is less clear. In this review, we discuss the documented and potential roles of inhibitory Siglecs in balancing immune activation and tolerance during viral infections and consider how this balance could affect both the desired anti-viral immunological functions and the unwanted hyper- or chronic inflammation. Finally, we discuss the opportunities to target the Siglec immunological switches to reach an immunological balance during viral infections: inhibiting specific Siglec-sialoglycan interactions when maximum anti-viral immune responses are needed, or inducing other interactions when preventing excessive inflammation or reducing chronic immune activation are the goals.http://www.sciencedirect.com/science/article/pii/S2352396422005369Viral infectionsSiglecSialic acidImmune activationImmune toleranceImmune surveillance
spellingShingle Pratima Saini
Opeyemi S. Adeniji
Mohamed Abdel-Mohsen
Inhibitory Siglec-sialic acid interactions in balancing immunological activation and tolerance during viral infections
EBioMedicine
Viral infections
Siglec
Sialic acid
Immune activation
Immune tolerance
Immune surveillance
title Inhibitory Siglec-sialic acid interactions in balancing immunological activation and tolerance during viral infections
title_full Inhibitory Siglec-sialic acid interactions in balancing immunological activation and tolerance during viral infections
title_fullStr Inhibitory Siglec-sialic acid interactions in balancing immunological activation and tolerance during viral infections
title_full_unstemmed Inhibitory Siglec-sialic acid interactions in balancing immunological activation and tolerance during viral infections
title_short Inhibitory Siglec-sialic acid interactions in balancing immunological activation and tolerance during viral infections
title_sort inhibitory siglec sialic acid interactions in balancing immunological activation and tolerance during viral infections
topic Viral infections
Siglec
Sialic acid
Immune activation
Immune tolerance
Immune surveillance
url http://www.sciencedirect.com/science/article/pii/S2352396422005369
work_keys_str_mv AT pratimasaini inhibitorysiglecsialicacidinteractionsinbalancingimmunologicalactivationandtoleranceduringviralinfections
AT opeyemisadeniji inhibitorysiglecsialicacidinteractionsinbalancingimmunologicalactivationandtoleranceduringviralinfections
AT mohamedabdelmohsen inhibitorysiglecsialicacidinteractionsinbalancingimmunologicalactivationandtoleranceduringviralinfections