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Reaction of inhibition of leukocyte migration in blood
Medical expert of the article
Last reviewed: 05.07.2025
The values of the reaction of inhibition of leukocyte migration in the blood are normal: migration with phytohemagglutinin (PHA) - 20-80%, with concanavalin A (ConA) - 40-75%, with a specific antigen - 80-120%.
The leukocyte migration inhibition test allows one to evaluate the ability of T-lymphocytes to produce lymphokines in response to antigen stimulation. This test for evaluating the functional activity of T-lymphocytes can be used to diagnose immunological deficiency (reaction with mitogens), delayed-type hypersensitivity (allergy) (reaction with a specific antigen or allergen). The leukocyte migration inhibition test can also be used to detect the immune response to infectious agents, to determine the degree of histocompatibility, and in tumor processes.
This test characterizes the activity of the inflammatory process. An increase in the leukocyte migration inhibition reaction should be considered as a prognostically favorable factor; clinically, this is accompanied by a faster recovery of patients with acute surgical diseases after surgery and a shortened postoperative period. Inhibition of leukocyte migration can be very significant in allergic reactions. Diseases and conditions leading to a change in the leukocyte migration inhibition reaction
Increase in the indicator
- Functional insufficiency of T-lymphocytes, immunodeficiency (including HIV infection), congenital defects of the T-link of immunity
- Chronization of the inflammatory process
- New growths
- Severe burns, injuries, stress
- Intestinal and renal protein wasting syndromes, aging
- Malnutrition
- Treatment with cytostatics and immunosuppressants
- Ionizing radiation
Decrease in the indicator
- A decrease in migration with a specific antigen or allergen indicates sensitization of lymphocytes to these antigens (allergy)
- Decreased migration with mitogens indicates hyperactivity of the immune system in allergic and autoimmune diseases