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Effects of novel lipoxygenase products on migration of eosinophils and neutrophils in vitro

, : Effects of novel lipoxygenase products on migration of eosinophils and neutrophils in vitro. International Archives of Allergy and Applied Immunology 72(1): 91-93

Since it has been suggested that a lipoxygenase product might be specific chemotactic factor for eosinophils, we assessed the stimulating effects of a variety of lipoxygenase products (LTB4, 20-OH-LTB4, 20-COOH-LTB4 and 5(S)12(S)-DHETE) on both neutrophil and eosinophil migration under agarose. LTB4 was the most potent lipoxygenase cytotaxin for neutrophils as well as eosinophils and its stimulating potential for both cell types was similar. The other leukotrienes stimulated migration of neutrophils less than LTB4, whereas eosinophils did not respond. Thus, the previous suggestion that an eosinophil chemotactic factor could be identical with LTB4 was not verified.


PMID: 6307891

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