Regulation of lymphocyte trafficking by CXC chemokine receptor 3 during septic shock

Daniela S. Herzig, Brandon R. Driver, Geping Fang, Tracy Toliver-Kinsky, Eric N. Shute, Edward R. Sherwood

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Rationale: Lymphocytes have been shown to facilitate systemic inflammation and physiologic dysfunction in experimental models of severe sepsis. Our previous studies show that natural killer (NK) cells migrate into the peritoneal cavity during intraabdominal sepsis, but the trafficking of NKT and T lymphocytes has not been determined. The factors that regulate lymphocyte trafficking during sepsis are currently unknown. Objectives: To ascertain the importance of CXC chemokine receptor 3 (CXCR3) as a regulator of lymphocyte trafficking during sepsis and determine the contribution of CXCR3-mediated lymphocyte trafficking to the pathogenesis of septic shock. Methods: Lymphocyte trafficking was evaluated in control and CXCR3-deficient mice using flow cytometry during sepsis caused by cecal ligation and puncture (CLP). Survival, core temperature, cytokine production,andbacterial clearance were measured as pathobiological endpoints. Measurements and Main Results: This study shows that concentrations of the CXCR3 ligands CXCL9 (monokine induced by interferon γ, MIG) and CXCL10 (interferon γ-induced protein 10, IP-10) increase in plasma and the peritoneal cavity after CLP, peak at 8 hours after infection, and are higher in the peritoneal cavity than in plasma. The numbers of CXCR3 + NK cells progressively decreased in spleen after CLP with a concomitant increase within the peritoneal cavity, a pattern that was ablated in CXCR3-deficient mice. CXCR3-dependent recruitment of T cells was also evident at 16 hours after CLP. Treatment of mice with anti-CXCR3 significantly attenuated CLP-induced hypothermia, decreased systemic cytokine production, and improved survival. Conclusions: CXCR3 regulates NK- and T-cell trafficking during sepsis and blockade of CXCR3 attenuates the pathogenesis of septic shock.

Original languageEnglish (US)
Pages (from-to)291-300
Number of pages10
JournalAmerican Journal of Respiratory and Critical Care Medicine
Volume185
Issue number3
DOIs
StatePublished - Feb 1 2012

Fingerprint

CXCR3 Receptors
Septic Shock
Lymphocytes
Sepsis
Punctures
Ligation
Peritoneal Cavity
Natural Killer Cells
Interferons
Monokines
Cytokines
T-Lymphocytes
Induced Hypothermia
Natural Killer T-Cells
Flow Cytometry

Keywords

  • Natural killer cells
  • Natural killer T cells
  • Septic shock
  • T cells

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine

Cite this

Regulation of lymphocyte trafficking by CXC chemokine receptor 3 during septic shock. / Herzig, Daniela S.; Driver, Brandon R.; Fang, Geping; Toliver-Kinsky, Tracy; Shute, Eric N.; Sherwood, Edward R.

In: American Journal of Respiratory and Critical Care Medicine, Vol. 185, No. 3, 01.02.2012, p. 291-300.

Research output: Contribution to journalArticle

Herzig, Daniela S. ; Driver, Brandon R. ; Fang, Geping ; Toliver-Kinsky, Tracy ; Shute, Eric N. ; Sherwood, Edward R. / Regulation of lymphocyte trafficking by CXC chemokine receptor 3 during septic shock. In: American Journal of Respiratory and Critical Care Medicine. 2012 ; Vol. 185, No. 3. pp. 291-300.
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