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Targeting Coagulation Factor XII as a Novel Therapeutic Option in Brain Trauma
Univ Hosp Wurzburg, Dept Neurol, Josef Schneider Str 11, D-97080 Wurzburg, Germany.;Univ Hosp Wurzburg, Dept Neurosurg, D-97080 Wurzburg, Germany..
Univ Hosp Wurzburg, Dept Neurol, Josef Schneider Str 11, D-97080 Wurzburg, Germany.;Univ Hosp Wurzburg, Dept Neurosurg, D-97080 Wurzburg, Germany..
Univ Hosp Wurzburg, Dept Neurol, Josef Schneider Str 11, D-97080 Wurzburg, Germany..
Univ Hosp Wurzburg, Dept Neurol, Josef Schneider Str 11, D-97080 Wurzburg, Germany.;Univ Hosp Wurzburg, Comprehens Heart Failure Ctr DZHI, D-97080 Wurzburg, Germany..
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2016 (English)In: Annals of Neurology, ISSN 0364-5134, E-ISSN 1531-8249, Vol. 79, no 6, 970-982 p.Article in journal (Refereed) Published
Abstract [en]

Objective: Traumatic brain injury is a major global public health problem for which specific therapeutic interventions are lacking. There is, therefore, a pressing need to identify innovative pathomechanism-based effective therapies for this condition. Thrombus formation in the cerebral microcirculation has been proposed to contribute to secondary brain damage by causing pericontusional ischemia, but previous studies have failed to harness this finding for therapeutic use. The aim of this study was to obtain preclinical evidence supporting the hypothesis that targeting factor XII prevents thrombus formation and has a beneficial effect on outcome after traumatic brain injury.

Methods: We investigated the impact of genetic deficiency of factor XII and acute inhibition of activated factor XII with a single bolus injection of recombinant human albumin-fused infestin-4 (rHA-Infestin-4) on trauma-induced microvascular thrombus formation and the subsequent outcome in 2 mouse models of traumatic brain injury.

Results: Our study showed that both genetic deficiency of factor XII and an inhibition of activated factor XII in mice minimize trauma-induced microvascular thrombus formation and improve outcome, as reflected by better motor function, reduced brain lesion volume, and diminished neurodegeneration. Administration of human factor XII in factor XII-deficient mice fully restored injury-induced microvascular thrombus formation and brain damage.

Interpretation: The robust protective effect of rHA-Infestin-4 points to a novel treatment option that can decrease ischemic injury after traumatic brain injury without increasing bleeding tendencies.

Place, publisher, year, edition, pages
2016. Vol. 79, no 6, 970-982 p.
National Category
Medical and Health Sciences
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URN: urn:nbn:se:uu:diva-302221DOI: 10.1002/ana.24655ISI: 000376775400011PubMedID: 27043916OAI: oai:DiVA.org:uu-302221DiVA: diva2:957141
Available from: 2016-09-01 Created: 2016-08-31 Last updated: 2016-09-01Bibliographically approved

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Alafuzoff, IrinaMarklund, Niklas
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