Factor XI deficiency alters the cytokine response and activation of contact proteases during polymicrobial sepsis in mice

Charles E. Bane, Ivan Ivanov, Anton Matafonov, Kelli L. Boyd, Qiufang Cheng, Edward R. Sherwood, Erik Tucker, Stephen T. Smiley, Owen McCarty, Andras Gruber, David Gailani

Research output: Contribution to journalArticle

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Abstract

Sepsis, a systemic inflammatory response to infection, is often accompanied by abnormalities of blood coagulation. Prior work with a mouse model of sepsis induced by cecal ligation and puncture (CLP) suggested that the protease factor XIa contributed to disseminated intravascular coagulation (DIC) and to the cytokine response during sepsis. We investigated the importance of factor XI to cytokine and coagulation responses during the first 24 hours after CLP. Compared to wild type littermates, factor XI-deficient (FXI-/-) mice had a survival advantage after CLP, with smaller increases in plasma levels of TNF-α and IL-10 and delayed IL-1β and IL-6 responses. Plasma levels of serum amyloid P, an acute phase protein, were increased in wild type mice 24 hours post-CLP, but not in FXI-/- mice, supporting the impression of a reduced inflammatory response in the absence of factor XI. Surprisingly, there was little evidence of DIC in mice of either genotype. Plasma levels of the contact factors factor XII and prekallikrein were reduced in WT mice after CLP, consistent with induction of contact activation. However, factor XII and PK levels were not reduced in FXI-/- animals, indicating factor XI deficiency blunted contact activation. Intravenous infusion of polyphosphate into WT mice also induced changes in factor XII, but had much less effect in FXI deficient mice. In vitro analysis revealed that factor XIa activates factor XII, and that this reaction is enhanced by polyanions such polyphosphate and nucleic acids. These data suggest that factor XI deficiency confers a survival advantage in the CLP sepsis model by altering the cytokine response to infection and blunting activation of the contact (kallikrein-kinin) system. The findings support the hypothesis that factor XI functions as a bidirectional interface between contact activation and thrombin generation, allowing the two processes to influence each other.

Original languageEnglish (US)
Article numbere0152968
JournalPLoS One
Volume11
Issue number4
DOIs
StatePublished - Apr 1 2016

Fingerprint

Factor XI Deficiency
Factor XI
sepsis (infection)
Sepsis
Peptide Hydrolases
cytokines
proteinases
Chemical activation
Punctures
Cytokines
Factor XII
Ligation
mice
Coagulation
Factor XIa
disseminated intravascular coagulation
polyphosphates
Polyphosphates
Disseminated Intravascular Coagulation
Plasmas

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Bane, C. E., Ivanov, I., Matafonov, A., Boyd, K. L., Cheng, Q., Sherwood, E. R., ... Gailani, D. (2016). Factor XI deficiency alters the cytokine response and activation of contact proteases during polymicrobial sepsis in mice. PLoS One, 11(4), [e0152968]. https://doi.org/10.1371/journal.pone.0152968

Factor XI deficiency alters the cytokine response and activation of contact proteases during polymicrobial sepsis in mice. / Bane, Charles E.; Ivanov, Ivan; Matafonov, Anton; Boyd, Kelli L.; Cheng, Qiufang; Sherwood, Edward R.; Tucker, Erik; Smiley, Stephen T.; McCarty, Owen; Gruber, Andras; Gailani, David.

In: PLoS One, Vol. 11, No. 4, e0152968, 01.04.2016.

Research output: Contribution to journalArticle

Bane, Charles E. ; Ivanov, Ivan ; Matafonov, Anton ; Boyd, Kelli L. ; Cheng, Qiufang ; Sherwood, Edward R. ; Tucker, Erik ; Smiley, Stephen T. ; McCarty, Owen ; Gruber, Andras ; Gailani, David. / Factor XI deficiency alters the cytokine response and activation of contact proteases during polymicrobial sepsis in mice. In: PLoS One. 2016 ; Vol. 11, No. 4.
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