Title |
Neutralization of the IL-17 axis diminishes neutrophil invasion and protects from ischemic stroke
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Published in |
Blood, September 2012
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DOI | 10.1182/blood-2012-02-412726 |
Pubmed ID | |
Authors |
Mathias Gelderblom, Anna Weymar, Christian Bernreuther, Joachim Velden, Priyadharshini Arunachalam, Karin Steinbach, Ellen Orthey, Thiruma V. Arumugam, Frank Leypoldt, Olga Simova, Vivien Thom, Manuel A. Friese, Immo Prinz, Christoph Hölscher, Markus Glatzel, Thomas Korn, Christian Gerloff, Eva Tolosa, Tim Magnus |
Abstract |
The devastating effect of ischemic stroke is attenuated in mice lacking conventional and unconventional T cells, suggesting that inflammation enhances tissue damage in cerebral ischemia. We explored the functional role of αβ and γδ T cells in a murine model of stroke and distinguished 2 different T cell-dependent proinflammatory pathways in ischemia-reperfusion injury. IFN-γ produced by CD4(+) T cells induced TNF-α production in macrophages, whereas IL-17A secreted by γδ T cells led to neutrophil recruitment. The synergistic effect of TNF-α and IL-17A on astrocytes resulted in enhanced secretion of CXCL-1, a neutrophil chemoattractant. Application of an IL-17A-blocking antibody within 3 hours after stroke induction decreased infarct size and improved neurologic outcome in the murine model. In autoptic brain tissue of patients who had a stroke, we detected IL-17A-positive lymphocytes, suggesting that this aspect of the inflammatory cascade is also relevant in the human brain. We propose that selective targeting of IL-17A signaling might provide a new therapeutic option for the treatment of stroke. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Germany | 3 | 1% |
Spain | 1 | <1% |
India | 1 | <1% |
Mexico | 1 | <1% |
Unknown | 217 | 97% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 43 | 19% |
Student > Ph. D. Student | 41 | 18% |
Student > Master | 25 | 11% |
Student > Doctoral Student | 23 | 10% |
Student > Bachelor | 15 | 7% |
Other | 42 | 19% |
Unknown | 34 | 15% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 43 | 19% |
Neuroscience | 35 | 16% |
Agricultural and Biological Sciences | 35 | 16% |
Immunology and Microbiology | 25 | 11% |
Biochemistry, Genetics and Molecular Biology | 17 | 8% |
Other | 22 | 10% |
Unknown | 46 | 21% |