Receptors eosinophils

The largest numbers of integrins are members of the (31 integrins, also known as the very late antigen (VLA) subfamily because of its late appearance after activation. There are at least seven receptors characterized from this subfamily, each with different ligand specificity. Among the most studied include the 04(31 and a5 31 receptors. The leukocyte integrin a4 31 is a cell adhesion receptor that is predominantly expressed on lymphocytes, monocytes and eosinophils. 

The leukocyte integrin a 4(3 1 (also known as VLA-4 and CD49d/CD29) is a cell adhesion receptor, which is predominantly expressed on lymphocytes, monocytes and eosinophils. VLA-4 is generally selective for the CS1 domain within fibronectin, with an essential requirement for LDV sequence for binding. VLA-4 also binds to VCAM-1 as a counter receptor. 

EPA Eicosapentaenoic acid EpDIF Epithelial-derived inhibitory factor also known as epithelium/derived relaxant fector EPO Eosinophil peroxidase EPOR Erythropoietin receptor EPR Effector cell protease EPX Eosinophil protein X ER Endoplasmic reticulum ERCP Endoscopic retrograde cholangiopancreatography E-selectin Endothelial selectin formerly known as endothelial leucocyte adhesion molecule-1 (ELAM-1)... 

Emedastine H,-receptor antagonist inhibits eosinophil chemotaxis Superior Hrreceptor binding ability... 

Fig.l. Expression of CC and CXC chemokine receptors by inflammatory and structural cells in allergic lung disease. Eos, eosinophil Mac, macrophage Mono, monocyte. 

Chensue SW, Lukacs NW, Yang TY, et al. Aberrant in vivo T helper type 2 cell response and impaired eosinophil recruitment in CC chemokine receptor 8 knockout mice. J Exp Med 2001 193(5) 573-584. 

Liu LY, Jarjour NN, Busse WW, Kelly EA. Chemokine receptor expression on human eosinophils from peripheral blood and bronchoalveolar lavage fluid after segmental antigen challenge. J Allergy Clin Immunol 2003 112(3) 556-562. 

Humbles AA, Lu B, Friend DS, et al. The murine CCR3 receptor regulates both the role of eosinophils and mast cells in allergen-induced airway inflammation and hyperresponsiveness. Proc Natl Acad Sci U S A 2002 99(3) 1479-1484. 

Sabroe I, Peck MJ, Van Keulen BJ, et al. A small molecule antagonist of chemokine receptors CCR1 and CCR3. Potent inhibition of eosinophil function and CCR3-mediated HIV-1 entry. J Biol Chem 2000 275(34) 25985-25992. 

White JR, Lee JM, Dede K, et al. Identification of potent, selective non-peptide CC chemokine receptor-3 antagonist that inhibits eotaxin-, eotaxin-2-, and monocyte chemotactic protein-4-induced eosinophil migration. J Biol Chem 2000 275(47) 36626-36631. 

Eisner J, Petering H, Hochstetter R, et al. The CC chemokine antagonist Met-RANTES inhibits eosinophil effector functions through the chemokine receptors CCR1 and CCR3. Eur J Immunol 1997 27(ll) 2892-2898. 

Nagase H, Kudo K, Izumi S, et al. Chemokine receptor expression profile of eosinophils at inflamed tissue sites decreased CCR3 and increased CXCR4 expression by lung eosinophils. J Allergy Clin Immunol 2001 108(4) 563-569. 

Struyf S, Proost P, Schols D, et al. CD26/dipeptidyl-peptidase IV down-regulates the eosinophil chemotactic potency, but not the anti-HIV activity of human eotaxin by affecting its interaction with CC chemokine receptor 3. J Immunol 1999 162 4903 1909. 

Hirai, H., et al (2001). Prostaglandin D2 selectively induces chemotaxis in T helper type 2 cells, eosinophils, and basophils via seven-transmembrane receptor CRTH2. J. Exp. Med. 193, 255-61. 

The interleukin family of cytokines has been overviewed in Chapter 9, and a number of cytokines are known to influence haemopoiesis. The IL-3 receptor, for example, is found on a wide variety of progenitor haemopoietic cells, and appears to stimulate not only CFU-GEMM, but also the precursor cells of basophils, eosinophils and platelets. The role of IL-11, which also plays a role, was also discussed in Chapter 9. 

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