TY  - JOUR
A1  - Albert-Weissenberger, Christiane
A1  - Mencl, Stine
A1  - Schuhmann, Michael K.
A1  - Salur, Irmak
A1  - Göb, Eva
A1  - Langhauser, Friederike
A1  - Hopp, Sarah
A1  - Hennig, Nelli
A1  - Meuth, Sven G.
A1  - Nolte, Marc W.
A1  - Sirén, Anna-Leena
A1  - Kleinschnitz, Christoph
T1  - C1-Inhibitor protects from focal brain trauma in a cortical cryolesion mice model by reducing thrombo-inflammation
JF  - Frontiers in Cellular Neuroscience
N2  - Traumatic brain injury (TBI) induces a strong inflammatory response which includes blood-brain barrier damage, edema formation and infiltration of different immune cell subsets. More recently, microvascular thrombosis has been identified as another pathophysiological feature of TBI. The contact-kinin system represents an interface between inflammatory and thrombotic circuits and is activated in different neurological diseases. C1-Inhibitor counteracts activation of the contact-kinin system at multiple levels. We investigated the therapeutic potential of C1-Inhibitor in a model of TBI. Male and female C57BL/6 mice were subjected to cortical cryolesion and treated with C1-Inhibitor after 1 h. Lesion volumes were assessed between day 1 and day 5 and blood-brain barrier damage, thrombus formation as well as the local inflammatory response were determined post TBI. Treatment of male mice with 15.0 IU C1-Inhibitor, but not 7.5 IU, 1 h after cryolesion reduced lesion volumes by ~75% on day 1. This protective effect was preserved in female mice and at later stages of trauma. Mechanistically, C1-Inhibitor stabilized the blood-brain barrier and decreased the invasion of immune cells into the brain parenchyma. Moreover, C1-Inhibitor had strong antithrombotic effects. C1-Inhibitor represents a multifaceted anti-inflammatory and antithrombotic compound that prevents traumatic neurodegeneration in clinically meaningful settings.
KW  - thrombosis
KW  - traumatic brain injury
KW  - C1-inhibitor
KW  - blood-brain barrier
KW  - contact-kinin system
KW  - edema
KW  - inflammation
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-119263
SN  - 1662-5102
VL  - 8
ER  - 
TY  - JOUR
A1  - Göbel, Kerstin
A1  - Pankratz, Susann
A1  - Asaridou, Chloi-Magdalini
A1  - Herrmann, Alexander M.
A1  - Bittner, Stefan
A1  - Merker, Monika
A1  - Ruck, Tobias
A1  - Glumm, Sarah
A1  - Langhauser, Friederike
A1  - Kraft, Peter
A1  - Krug, Thorsten F.
A1  - Breuer, Johanna
A1  - Herold, Martin
A1  - Gross, Catharina C.
A1  - Beckmann, Denise
A1  - Korb-Pap, Adelheid
A1  - Schuhmann, Michael K.
A1  - Kuerten, Stefanie
A1  - Mitroulis, Ioannis
A1  - Ruppert, Clemens
A1  - Nolte, Marc W.
A1  - Panousis, Con
A1  - Klotz, Luisa
A1  - Kehrel, Beate
A1  - Korn, Thomas
A1  - Langer, Harald F.
A1  - Pap, Thomas
A1  - Nieswandt, Bernhard
A1  - Wiendl, Heinz
A1  - Chavakis, Triantafyllos
A1  - Kleinschnitz, Christoph
A1  - Meuth, Sven G.
T1  - Blood coagulation factor XII drives adaptive immunity during neuroinflammation via CD87-mediated modulation of dendritic cells
JF  - Nature Communications
N2  - Aberrant immune responses represent the underlying cause of central nervous system (CNS) autoimmunity, including multiple sclerosis (MS). Recent evidence implicated the crosstalk between coagulation and immunity in CNS autoimmunity. Here we identify coagulation factor XII (FXII), the initiator of the intrinsic coagulation cascade and the kallikrein–kinin system, as a specific immune cell modulator. High levels of FXII activity are present in the plasma of MS patients during relapse. Deficiency or pharmacologic blockade of FXII renders mice less susceptible to experimental autoimmune encephalomyelitis (a model of MS) and is accompanied by reduced numbers of interleukin-17A-producing T cells. Immune activation by FXII is mediated by dendritic cells in a CD87-dependent manner and involves alterations in intracellular cyclic AMP formation. Our study demonstrates that a member of the plasmatic coagulation cascade is a key mediator of autoimmunity. FXII inhibition may provide a strategy to combat MS and other immune-related disorders.
KW  - blood coagulation
KW  - factor XII
KW  - neuroinflammation
KW  - dendric cells
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-165503
VL  - 7
IS  - 11626
ER  -