title: C-C chemokines in allergen-induced late-phase cutaneous responses in atopic subjects: association of eotaxin with early 6-hour eosinophils, and of eotaxin-2 and monocyte chemoattractant protein-4 with the later 24-hour tissue eosinophilia, and relationship to basophils and other C-C chemokines (monocyte chemoattractant protein-3 and RANTES).
abstract: The relationship of expression of the C-C chemokines eotaxin, eotaxin 2, RANTES, monocyte chemoattractant protein-3 (MCP-3), and MCP-4 to the kinetics of infiltrating eosinophils, basophils, and other inflammatory cells was examined in allergen-induced, late-phase allergic reactions in the skin of human atopic subjects. EG2+ eosinophils peaked at 6 h and correlated significantly with eotaxin mRNA and protein, whereas declining eosinophils at 24 h correlated significantly with eotaxin-2 and MCP-4 mRNA. In contrast, no significant correlations were observed between BB1+ basophil infiltrates, which peaked at 24 h, and expression of eotaxin, eotaxin-2, RANTES, MCP-3, and MCP-4 or elastase+ neutrophils (6-h peak), CD3+ and CD4+ T cells (24 h), and CD68+ macrophages (72 h). Furthermore, 83% of eosinophils, 40% of basophils, and 1% of CD3+ cells expressed the eotaxin receptor CCR3, while eotaxin protein was expressed by 43% of macrophages, 81% of endothelial cells, and 6% of T cells (6%). These data suggest that 1) eotaxin has a role in the early 6-h recruitment of eosinophils, while eotaxin-2 and MCP-4 appear to be involved in later 24-h infiltration of these CCR3+ cells; 2) different mechanisms may guide the early vs late eosinophilia; and 3) other chemokines and receptors may be involved in basophil accumulation of allergic tissue reactions in human skin.
authors.affiliation: Department of Allergy and Clinical Immunology, Imperial College School of Medicine, National Heart and Lung Institute, London, United Kingdom.
authors.forename: S
authors.initials: S
authors.lastname: Ying
authors.forename: D S
authors.initials: DS
authors.lastname: Robinson
authors.forename: Q
authors.initials: Q
authors.lastname: Meng
authors.forename: L T
authors.initials: LT
authors.lastname: Barata
authors.forename: A R
authors.initials: AR
authors.lastname: McEuen
authors.forename: M G
authors.initials: MG
authors.lastname: Buckley
authors.forename: A F
authors.initials: AF
authors.lastname: Walls
authors.forename: P W
authors.initials: PW
authors.lastname: Askenase
authors.forename: A B
authors.initials: AB
authors.lastname: Kay
mesh_terms: D000293:Adolescent; D000328:Adult; D000485:Allergens / Q000276:immunology*; D001491:Basophils / Q000276:immunology* / Q000378:metabolism / Q000473:pathology; D002465:Cell Movement / Q000276:immunology; D054413:Chemokine CCL11; D054423:Chemokine CCL24; D018946:Chemokine CCL5 / Q000235:genetics / Q000378:metabolism; D054410:Chemokine CCL7; D019742:Chemokines, CC / Q000096:biosynthesis / Q000235:genetics / Q000378:metabolism*; D016207:Cytokines / Q000235:genetics / Q000378:metabolism; D003876:Dermatitis, Atopic / Q000276:immunology* / Q000473:pathology; D004802:Eosinophilia / Q000276:immunology* / Q000473:pathology; D004804:Eosinophils / Q000276:immunology* / Q000378:metabolism / Q000473:pathology; D006801:Humans; D016130:Immunophenotyping; D008875:Middle Aged; D018945:Monocyte Chemoattractant Proteins / Q000235:genetics / Q000378:metabolism; D012333:RNA, Messenger / Q000096:biosynthesis; D054397:Receptors, CCR3; D019707:Receptors, Chemokine / Q000096:biosynthesis / Q000235:genetics; D013997:Time Factors
chemical_list: D000485:Allergens; C515456:CCL11 protein, human; C099677:CCL13 protein, human; C515484:CCL24 protein, human; C515450:CCL7 protein, human; C515350:CCR3 protein, human; D054413:Chemokine CCL11; D054423:Chemokine CCL24; D018946:Chemokine CCL5; D054410:Chemokine CCL7; D019742:Chemokines, CC; D016207:Cytokines; D018945:Monocyte Chemoattractant Proteins; D012333:RNA, Messenger; D054397:Receptors, CCR3; D019707:Receptors, Chemokine