CCR4 and CXCR3 play different roles in the migration of T cells to inflammation in skin, arthritic joints, and lymph nodes

Nadia A. Al-Banna, Maria Vaci, Drew Slauenwhite, Brent Johnston, Thomas B. Issekutz

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

33 Citas (Scopus)

Resumen

CCR4 and CXCR3 are expressed on several T-cell subsets in inflamed tissues, yet their role in tissue-specific recruitment is unclear. We examined the contributions of CCR4 and CXCR3 to T-cell recruitment into inflamed joints in collagen-induced arthritis, antigen-draining lymph nodes (LNs) and dermal inflammatory sites (poly I:C, LPS, concanavalin A, and delayed type hypersensitivity), using labeled activated T cells from CXCR3-/-, CCR4-/-, and WT mice. Both CXCR3 and CCR4 deficiency reduced the development of arthritis, but did not affect Th1-cell recruitment to the inflamed joints. Accumulation in inflamed LNs was highly CXCR3 dependent. In contrast, CCR4-deficient Th1 cells had an increased accumulation in these LNs. Migration to all four dermal inflammatory sites by activated Th1 and T cytotoxic cells and memory CD4+ T cells was partially CXCR3-dependent, but Treg-cell migration was independent of CXCR3. The subset of cells expressing CCR4 has skin-migrating properties, but CCR4 itself is not required for the migration. Thus, migration into these inflamed tissues is CCR4-independent, and partially dependent on CXCR3, except for Treg cells, which require neither receptor. CCR4 may therefore affect retention of T cells in different tissues rather than trafficking out of the blood.

Idioma originalEnglish
Páginas (desde-hasta)1633-1643
Número de páginas11
PublicaciónEuropean Journal of Immunology
Volumen44
N.º6
DOI
EstadoPublished - jun. 2014

ASJC Scopus Subject Areas

  • Immunology and Allergy
  • Immunology

PubMed: MeSH publication types

  • Journal Article
  • Research Support, Non-U.S. Gov't

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