The in vivo role of the N-terminal lectin-like domain of thrombomodulin
was studied by using homologous recombination in murine ES cells to
create mutant mice that lack this region of thrombomodulin. Phenotypic
analysis shows that said mice respond identically to their wild type
littermates following pro-coagulant challenges meaning that the protein C
pathway is not altered by the mutation. However, following several
inflammatory stimuli, it was observed that the mutant mice showed an
elevated neutrophil extravasation in several organs. It is found that
leukocyte adhesion could be abrogated by addition of recombinant
lectin-domain meaning that said domain has direct anti-inflammatory
properties which means that the lectin-like domain can be used to
manufacture a medicament useful for the treatment of a variety of
inflammatory disease processes.