LPA Promotes T Cell Recruitment through Synthesis of CXCL13.

Abstract:

:Lysophosphatidic acid (LPA) is a bioactive phospholipid playing an important role in various inflammatory diseases by inducing expression and secretion of many inflammatory cytokines/chemokines. Here we report in a murine air pouch model of inflammation that LPA induced CXCL13 secretion in a time-dependent manner and with exacerbation of the response when LPA was administered after a pretreatment with TNF-α, a key inflammatory cytokine. LPA mediates recruitment of leukocytes, including that of CD3(+) cells into unprimed and TNF-α-primed air pouches. CXCL13 neutralization using a blocking antibody injected into air pouches prior to administration of LPA into TNF-α-primed air pouches decreased CD3(+) cell influx. Our data highlight that LPA-mediated CXCL13 secretion plays a role in T cell recruitment and participates in regulation of the inflammatory response.

journal_name

Mediators Inflamm

authors

Hui W,Zhao C,Bourgoin SG

doi

10.1155/2015/248492

subject

Has Abstract

pub_date

2015-01-01 00:00:00

pages

248492

eissn

0962-9351

issn

1466-1861

journal_volume

2015

pub_type

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