Systemically administered anti-TNF therapy ameliorates functional outcomes after focal cerebral ischemia

Autor: Yvonne Couch, Ian L. Sargent, Géraldine H Petit, David E. Szymkowski, Leena Karimi, Nellie Anne Martin, Matilda Degn, Chris Gardiner, Maria-Louise Bergholdt Mortensen, Maria Ormhøj, Bente Finsen, Hanne Gredal, Tomas Deierborg, Daniel C. Anthony, Bettina Hjelm Clausen, Kate Lykke Lambertsen
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Clausen, B H, Degn, M, Martin, N A, Couch, Y, Karimi, L, Ormhøj, M, Mortensen, M-L B, Gredal, H B, Gardiner, C, Sargent, I I L, Szymkowski, D E, Petit, G H, Deierborg, T, Finsen, B, Anthony, D C & Lambertsen, K L 2014, ' Systemically administered anti-TNF therapy ameliorates functional outcomes after focal cerebral ischemia ', Journal of Neuroinflammation, vol. 11, 203 . https://doi.org/10.1186/s12974-014-0203-6
Clausen, B H, Degn, M, Martin, N A, Couch, Y, Karimi, L, Ormhøj, M, Mortensen, M-L B, Gredal, H, Gardiner, C, Sargent, I I L, Szymkowski, D E, Petit, G, Deierborg, T, Finsen, B, Anthony, D & Lambertsen, K L 2014, ' Systemically administered anti-TNF therapy ameliorates functional outcomes after focal cerebral ischemia ', Journal of Neuroinflammation, vol. 11, no. 1, 203 . https://doi.org/10.1186/s12974-014-0203-6
Journal of Neuroinflammation; 11, no 203 (2014)
Journal of Neuroinflammation
ISSN: 1742-2094
DOI: 10.1186/s12974-014-0203-6
Popis: Background The innate immune system contributes to the outcome after stroke, where neuroinflammation and post-stroke systemic immune depression are central features. Tumor necrosis factor (TNF), which exists in both a transmembrane (tm) and soluble (sol) form, is known to sustain complex inflammatory responses associated with stroke. We tested the effect of systemically blocking only solTNF versus blocking both tmTNF and solTNF on infarct volume, functional outcome and inflammation in focal cerebral ischemia. Methods We used XPro1595 (a dominant-negative inhibitor of solTNF) and etanercept (which blocks both solTNF and tmTNF) to test the effect of systemic administration on infarct volume, functional recovery and inflammation after focal cerebral ischemia in mice. Functional recovery was evaluated after one, three and five days, and infarct volumes at six hours, 24 hours and five days after ischemia. Brain inflammation, liver acute phase response (APR), spleen and blood leukocyte profiles, along with plasma microvesicle analysis, were evaluated. Results We found that both XPro1595 and etanercept significantly improved functional outcomes, altered microglial responses, and modified APR, spleen T cell and microvesicle numbers, but without affecting infarct volumes. Conclusions Our data suggest that XPro1595 and etanercept improve functional outcome after focal cerebral ischemia by altering the peripheral immune response, changing blood and spleen cell populations and decreasing granulocyte infiltration into the brain. Blocking solTNF, using XPro1595, was just as efficient as blocking both solTNF and tmTNF using etanercept. Our findings may have implications for future treatments with anti-TNF drugs in TNF-dependent diseases. Electronic supplementary material The online version of this article (doi:10.1186/s12974-014-0203-6) contains supplementary material, which is available to authorized users.
Databáze: OpenAIRE
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