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Updated: Jun 27, 2026

Characterization of Thymus-dependent and Thymus-independent Immunoglobulin Isotype Responses in Mice Using Enzyme-linked Immunosorbent Assay
Published on: September 7, 2018
Basic and clinical immunology of Siglecs.
Stephan von Gunten1, Bruce S Bochner
1Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, Johns Hopkins Asthma and Allergy Center, Baltimore, MD 21224-6821, USA.
Sialic acid-binding immunoglobulin-like lectins (Siglecs) are immune cell surface proteins. This review details Siglec functions, ligands, and signaling, focusing on CD33-related Siglecs and their therapeutic potential.
Area of Science:
- Immunology
- Cell Biology
- Biochemistry
Background:
- Siglecs are cell-surface proteins on hematopoietic cells, belonging to the immunoglobulin superfamily.
- They bind sialic acid and possess signaling motifs, playing roles in immune regulation.
- Understanding Siglec diversity and function is crucial for immunology.
Purpose of the Study:
- To provide a comprehensive review of Siglec characteristics, expression, and functions.
- To detail human Siglecs, their murine counterparts, ligands, and signaling pathways.
- To explore the clinical and therapeutic implications of Siglecs, particularly CD33-related Siglecs.
Main Methods:
- Literature review and synthesis of existing research on Siglecs.
- Comparative analysis of human and murine Siglec orthologs/paralogs.
- Focus on cellular expression, immune functions, ligands, and signaling pathways.
Main Results:
- Siglecs exhibit diverse cellular expression patterns and immune functions.
- Specific ligands and signaling pathways are identified for various Siglecs.
- CD33-related Siglecs are highlighted for their significant roles and therapeutic potential.
Conclusions:
- Siglecs are critical regulators of immune responses with diverse functions.
- Detailed knowledge of Siglec biology informs potential therapeutic strategies.
- Further research into Siglec signaling and ligands can unlock new treatments for immune disorders.
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