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Related Experiment Video

Updated: Jul 29, 2025

Screening Assays to Characterize Novel Endothelial Regulators Involved in the Inflammatory Response
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CD24-Siglec interactions in inflammatory diseases.

Yang Liu1, Pan Zheng1

  • 1OncoC4, Inc., Rockville, MD, United States.

Frontiers in Immunology
|May 25, 2023
PubMed
Summary
This summary is machine-generated.

The CD24-Siglec pathway, involving sialylated CD24 (SialoCD24), regulates inflammatory responses. This interaction is crucial for protecting against autoimmune diseases, metabolic disorders, and COVID-19, driving translational research.

Keywords:
CD24COVID-19Siglecsgraft vs host diseasesimmunotherapy-related adverse events

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Area of Science:

  • Immunology
  • Glycobiology
  • Molecular Biology

Background:

  • CD24 is a GPI-anchored glycoprotein with diverse cellular functions.
  • Differential glycosylation of CD24 influences its interactions with various receptors.
  • CD24-Siglec interactions were first identified for inhibiting inflammatory responses.

Purpose of the Study:

  • To review the biological significance of the CD24-Siglec pathway.
  • To highlight the role of sialylated CD24 (SialoCD24) as a Siglec ligand.
  • To emphasize the clinical translation of CD24-Siglec pathway research.

Main Methods:

  • Literature review of studies on CD24 and Siglec interactions.
  • Analysis of CD24's role in inflammatory, autoimmune, and metabolic diseases.
  • Examination of CD24-Siglec pathway's relevance in COVID-19 and other conditions.

Main Results:

  • Sialylated CD24 (SialoCD24) acts as a key endogenous ligand for CD33-family Siglecs.
  • The CD24-Siglec pathway protects against inflammatory and autoimmune diseases.
  • This pathway is critical in metabolic disorders and respiratory distress, including COVID-19.

Conclusions:

  • CD24-Siglec interactions are vital for immune homeostasis and disease prevention.
  • Translational research is actively exploring CD24-Siglec pathways for therapeutic applications.
  • Targeting this pathway holds promise for treating graft-vs-host diseases, cancer, COVID-19, and metabolic disorders.