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Staumont-Salle, D.* ; Fleury, S.* ; Lazzari, A.* ; Molendi-Coste, O.* ; Hornez, N.* ; Lavogiez, C.* ; Kanda, A.* ; Wartelle, J.* ; Fries, A.* ; Pennino, D. ; Mionnet, C.* ; Prawitt, J.* ; Bouchaert, E.* ; Delaporte, E.* ; Glaichenhaus, N.* ; Staels, B.* ; Julia, V.* ; Dombrowicz, D.*

CX3CL1 (fractalkine) and its receptor CX3CR1 regulate atopic dermatitis by controlling effector T cell retention in inflamed skin.

J. Exp. Med. 211, 1185-1196 (2014)
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Atopic dermatitis (AD) is a chronic allergic dermatosis characterized by epidermal thickening and dermal inflammatory infiltrates with a dominant Th2 profile during the acute phase, whereas a Th1 profile is characteristic of the chronic stage. Among chemokines and chemokine receptors associated with inflammation, increased levels of CX(3)CL1 (fractalkine) and its unique receptor, CX(3)CR1, have been observed in human AD. We have thus investigated their role and mechanism of action in experimental models of AD and psoriasis. AD pathology and immune responses, but not psoriasis, were profoundly decreased in CX(3)CR1 deficient mice and upon blocking CX(3)CL1-CX(3)CR1 interactions in wild- type mice. CX(3)CR1 deficiency affected neither antigen presentation nor T cell proliferation in vivo upon skin sensitization, but CX(3)CR1 expression by both Th2 and Th1 cells was required to induce AD. Surprisingly, unlike in allergic asthma, where CX(3)CL1 and CX(3)CR1 regulate the pathology by controlling effector CD4(+) T cell survival within inflamed tissues, adoptive transfer experiments established CX(3)CR1 as a key regulator of CD4+ T cell retention in inflamed skin, indicating a new function for this chemokine receptor. Therefore, although CX(3)CR1 and CX3CL1 act through distinct mechanisms in different pathologies, our results further indicate their interest as promising therapeutic targets in allergic diseases.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Dendritic Cells; Allergic Dermatitis; Inflammation; Cx3cr1; Mice; Expression; Antigen; Asthma; Population; Survival
ISSN (print) / ISBN 0022-1007
e-ISSN 1540-9538
Zeitschrift Journal of Experimental Medicine
Quellenangaben Band: 211, Heft: 6, Seiten: 1185-1196 Artikelnummer: , Supplement: ,
Verlag Rockefeller University Press
Verlagsort New York
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute for Allergy Research (IAF)