The present invention provides a method of treating or preventing immunoinflammatory, vascular, thrombotic or ischemic disorders in a subject, the method comprises administering to the subject an agent which dissipates nucleotide phosphates or generates a product which stimulates adenosine receptors. The present invention also provides a method of treating or preventing immunoinflammatory, thrombotic or ischemic disorders in a subject by inhibiting leukocyte infiltration into a site which comprises administering to the subject an effective amount a described agent. Agents described for use in the methods of the invention include CD73, a fragment a mutant, or a modified form thereof.
