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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Plasmodium falciparum-infected erythrocytes bind ICAM-1 at a site distinct from LFA-1, Mac-1, and human rhinovirus.

The attachment of erythrocytes infected with P. falciparum to human venular endothelium is the primary step leading to complications from severe and cerebral malaria. Intercellular adhesion molecule-1 ( ICAM-1, CD54) has been implicated as a cytoadhesion receptor for P. falciparum-infected erythrocytes. Characterization of domain deletion, human/murine chimeric ICAM-1 molecules, and amino acid substitution mutants localized the primary binding site for parasitized erythrocytes to the first amino-terminal immunoglobulin-like domain of ICAM-1. The ICAM-1 binding site is distinct from those recognized by LFA-1, Mac-1, and the human major-type rhinoviruses. Synthetic peptides encompassing the binding site on ICAM-1 inhibited malaria-infected erythrocyte adhesion to ICAM-1-coated surfaces with a Ki of 0.1-0.3 mM, whereas the Ki for soluble ICAM-1 is 0.15 microM. These findings have implications for the therapeutic reversal of malaria-infected erythrocyte sequestration in the host microvasculature.[1]

References

  1. Plasmodium falciparum-infected erythrocytes bind ICAM-1 at a site distinct from LFA-1, Mac-1, and human rhinovirus. Ockenhouse, C.F., Betageri, R., Springer, T.A., Staunton, D.E. Cell (1992) [Pubmed]
 
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