FTY720 stimulates multidrug transporter- and cysteinyl leukotriene-dependent T cell chemotaxis to lymph nodes

Shaun M. Honig, Shuang Fu, Xia Mao, Adam Yopp, Michael D. Gunn, Gwendalyn J. Randolph, Jonathan S. Bromberg

Research output: Contribution to journalArticle

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Abstract

FTY720 is a sphingosine-derived immunosuppressant. Phosphorylated FTY720 promotes T cell homing from spleen and peripheral blood to LNs by acting as an agonist for sphingosine-1-phosphate (S1P) receptors. Here we demonstrate that FTY720 enhances the activity of the sphingosine transporter Abcb1 (Mdr1) and the leukotriene C4 transporter Abcc1 (Mrp1). Both transporters must be active for FTY720-mediated T cell migration and LN homing. Migration and homing driven by FTY720, phosphorylated FTY720, or S1P also require 5-lipoxygenase-mediated synthesis of cysteinyl leukotrienes and their efflux from the cell. FTY720-mediated LN homing events further downstream are dependent on CCL19, CCL21, VLA-4α, and CD44. Use of T cells deficient in 5-lipoxygenase, Abcb1, and Abcc1, and comparison of the effects of FTY720 with those of S1P, suggest a model of sequential engagement of Abcb1, SP1 receptors, 5-lipoxygenase, and Abcc1 to enhance T cell migration and homing.

Original languageEnglish (US)
Pages (from-to)627-637
Number of pages11
JournalJournal of Clinical Investigation
Volume111
Issue number5
DOIs
StatePublished - Mar 2003

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Chemotaxis
Lymph Nodes
T-Lymphocytes
Arachidonate 5-Lipoxygenase
Sphingosine
Cell Movement
Lysosphingolipid Receptors
Integrin alpha4beta1
Leukotriene C4
Fingolimod Hydrochloride
cysteinyl-leukotriene
Immunosuppressive Agents
Spleen

ASJC Scopus subject areas

  • Medicine(all)

Cite this

FTY720 stimulates multidrug transporter- and cysteinyl leukotriene-dependent T cell chemotaxis to lymph nodes. / Honig, Shaun M.; Fu, Shuang; Mao, Xia; Yopp, Adam; Gunn, Michael D.; Randolph, Gwendalyn J.; Bromberg, Jonathan S.

In: Journal of Clinical Investigation, Vol. 111, No. 5, 03.2003, p. 627-637.

Research output: Contribution to journalArticle

Honig, Shaun M. ; Fu, Shuang ; Mao, Xia ; Yopp, Adam ; Gunn, Michael D. ; Randolph, Gwendalyn J. ; Bromberg, Jonathan S. / FTY720 stimulates multidrug transporter- and cysteinyl leukotriene-dependent T cell chemotaxis to lymph nodes. In: Journal of Clinical Investigation. 2003 ; Vol. 111, No. 5. pp. 627-637.
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