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Erythroblast-macrophage adhesive interactions in the erythroid niche. Interactions illustrated include erythroblast α4β1 binding macrophage VCAM-1; erythroblast ICAM-4 binding macrophage α⋁ integrin; homophilic binding mediated by Emp between erythroblast and macrophage. Illustration by Paulette Dennis.
