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The potential role of sialoadhesin as a macrophage recognition molecule in health and disease

P R Crocker1, A Hartnell, J Munday

  • 1ICRF Laboratories, Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, UK. p.crocker@icrf.icnet.uk

Glycoconjugate Journal
|August 1, 1997
PubMed

Insights

Sialoadhesin, a macrophage glycoprotein, mediates cell interactions by recognizing specific sialic acids. This review explores its role in normal and inflammatory macrophage functions.

Area of Science:

  • Immunology
  • Glycobiology
  • Cell Biology

Background:

  • Sialoadhesin is an 185 kDa macrophage-restricted transmembrane glycoprotein.
  • It mediates cell-cell interactions via recognition of Neu5Ac alpha2,3Gal in glycoconjugates.
  • Its extracellular region features seventeen immunoglobulin-like domains, with the N-terminal two related to CD22, myelin associated glycoprotein, and CD33.

Purpose of the Study:

  • To review recent studies on sialoadhesin.
  • To explore the contribution of sialoadhesin to macrophage functions under normal and inflammatory conditions.

Main Methods:

  • Review of existing literature and recent studies on sialoadhesin.
  • Analysis of sialoadhesin's structure and function.
  • Discussion of sialic acid recognition mechanisms.

Main Results:

  • Sialoadhesin belongs to a family of proteins mediating sialic acid-dependent binding with distinct specificities.
  • The sialoadhesin family exhibits specificities for both sialic acid type and linkage to subterminal sugars.
  • Recent studies provide insights into sialoadhesin's molecular interactions.

Conclusions:

  • Sialoadhesin plays a significant role in macrophage-mediated cell-cell interactions.
  • Understanding sialoadhesin's function is crucial for comprehending macrophage roles in immunity and inflammation.
  • Further research can elucidate therapeutic strategies targeting sialoadhesin-mediated pathways.

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