Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 1999
Markedly high eosinophilia and an elevated serum IL-5 level in an infant with cow milk allergy.
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Matsumoto T, Goto Y, Miike T
Аннотация
BACKGROUND: Interleukin-5 (IL-5) promotes the production and function of eosinophils, and an increase in the serum soluble CD23 (sCD23) level is suggestive of enhanced type-2 helper T-cell activity. The secretion of a large amount of the proinflammatory cytokine, tumor necrosis factor alpha (TNF-a), has been reported to alter the intestinal barrier capacity.
OBJECTIVE: To determine whether or not distinct profiles of cytokine production were involved in the marked peripheral eosinophilia of as high as 20,000/mm3 and the gastrointestinal symptoms seen in an infant with cow milk allergy.
METHODS: The levels of IL-5, sCD23, and TNF-alpha in serum and the culture supernatants of mononuclear cells were compared with those in infants with anaphylaxis to cow milk and nonallergic infants.
RESULTS: Interleukin-5 was detected in the serum (19 pg/mL) but became undetectable after 2 weeks on a milk-free diet together with clinical remission. A kinetic decrease in the serum sCD23 level was also observed during the administration of a milk-free diet with improvement of the eosinophilia in 2 months. The TNF-alpha produced in vitro after stimulation with cow milk protein was not different from in controls.
CONCLUSION: It seems likely that the allergic inflammation due to cow milk can induce marked eosinophilia with an associated increase in IL-5 production.
OBJECTIVE: To determine whether or not distinct profiles of cytokine production were involved in the marked peripheral eosinophilia of as high as 20,000/mm3 and the gastrointestinal symptoms seen in an infant with cow milk allergy.
METHODS: The levels of IL-5, sCD23, and TNF-alpha in serum and the culture supernatants of mononuclear cells were compared with those in infants with anaphylaxis to cow milk and nonallergic infants.
RESULTS: Interleukin-5 was detected in the serum (19 pg/mL) but became undetectable after 2 weeks on a milk-free diet together with clinical remission. A kinetic decrease in the serum sCD23 level was also observed during the administration of a milk-free diet with improvement of the eosinophilia in 2 months. The TNF-alpha produced in vitro after stimulation with cow milk protein was not different from in controls.
CONCLUSION: It seems likely that the allergic inflammation due to cow milk can induce marked eosinophilia with an associated increase in IL-5 production.