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Molecular mechanisms of leukocyte trafficking in T-cell-mediated skin inflammation: insights from intravital imaging

Published online by Cambridge University Press:  20 August 2009

James A. Deane
Affiliation:
Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Clayton, Australia.
Michael J. Hickey*
Affiliation:
Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Clayton, Australia.
*
*Corresponding author: Michael Hickey, Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, 246 Clayton Rd., Clayton, 3168, Australia, Tel: +61 3 9594 5519; Fax: +61 3 9594 6495; E-mail: [email protected]

Abstract

Infiltration of T cells is a key step in the pathogenesis of the inflammatory skin diseases atopic dermatitis, allergic contact dermatitis and psoriasis. Understanding the mechanisms of T cell recruitment to the skin is therefore of fundamental importance for the discovery and application of novel therapies for these conditions. Studies of both clinical samples and experimental models of skin inflammation have implicated specific adhesion molecules and chemokines in lymphocyte recruitment. In particular, recent studies using advanced in vivo imaging techniques have greatly increased our understanding of the kinetics and molecular basis of this process. In this review, we summarise the current understanding of the cellular immunology of antigen-driven dermal inflammation and the roles of adhesion molecules and chemokines. We focus on results obtained using intravital microscopy to examine the dermal microvasculature and interstitium to determine the mechanisms of T cell recruitment and migration in experimental models of T-cell-mediated skin inflammation.

Type
Review Article
Copyright
Copyright © Cambridge University Press 2009

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References

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Further reading, resources and contacts

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Ley, K. et al. (2007) Getting to the site of inflammation: the leukocyte adhesion cascade updated. Nature Reviews Immunology 7, 678-689CrossRefGoogle Scholar
Cahalan, M.D. and Parker, I. (2008) Choreography of Cell Motility and Interaction Dynamics Imaged by Two-Photon Microscopy in Lymphoid Organs. Annual Reviews in Immunology 26, 585-626CrossRefGoogle ScholarPubMed
Pittet, M.J. and Mempel, T.R. (2008) Regulation of T-cell migration and effector functions: insights from in vivo imaging studies. Immunology Reviews 221, 107-129CrossRefGoogle ScholarPubMed
Saint-Mezard, P. et al. (2004) Allergic contact dermatitis. European Journal of Dermatology 14, 284-295Google ScholarPubMed
Saint-Mezard, P. et al. (2004) The role of CD4+ and CD8+ T cells in contact hypersensitivity and allergic contact dermatitis. European Journal of Dermatology 14, 131-138Google ScholarPubMed
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Ley, K. et al. (2007) Getting to the site of inflammation: the leukocyte adhesion cascade updated. Nature Reviews Immunology 7, 678-689CrossRefGoogle Scholar
Cahalan, M.D. and Parker, I. (2008) Choreography of Cell Motility and Interaction Dynamics Imaged by Two-Photon Microscopy in Lymphoid Organs. Annual Reviews in Immunology 26, 585-626CrossRefGoogle ScholarPubMed
Pittet, M.J. and Mempel, T.R. (2008) Regulation of T-cell migration and effector functions: insights from in vivo imaging studies. Immunology Reviews 221, 107-129CrossRefGoogle ScholarPubMed
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