EGFL7 reduces CNS inflammation in mouse.
EGFL7 reduces CNS inflammation in mouse.
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DOI:
10.1038/s41467-018-03186-z
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发表时间:
2018-02-26
影响因子:
16.6
通讯作者:
Zipp F
中科院分区:
文献类型:
--
作者:
Larochelle C;Uphaus T;Broux B;Gowing E;Paterka M;Michel L;Dudvarski Stankovic N;Bicker F;Lemaître F;Prat A;Schmidt MHH;Zipp F
Extracellular matrix (ECM) proteins secreted by blood-brain barrier (BBB) endothelial cells (ECs) are implicated in cell trafficking. We discovered that the expression of ECM epidermal growth factor-like protein 7 (EGFL7) is increased in the CNS vasculature of patients with multiple sclerosis (MS), and in mice with experimental autoimmune encephalomyelitis (EAE). Perivascular CD4 T lymphocytes colocalize with ECM-bound EGFL7 in MS lesions. Human and mouse activated T cells upregulate EGFL7 ligand αvβ3 integrin and can adhere to EGFL7 through integrin αvβ3. EGFL7-knockout (KO) mice show earlier onset of EAE and increased brain and spinal cord parenchymal infiltration of T lymphocytes. Importantly, EC-restricted EGFL7-KO is associated with a similar EAE worsening. Finally, treatment with recombinant EGFL7 improves EAE, reduces MCAM expression, and tightens the BBB in mouse. Our data demonstrate that EGFL7 can limit CNS immune infiltration and may represent a novel therapeutic avenue in MS. Endothelial cells release extracellular matrix components that regulate inflammation. Here the authors demonstrate that the extracellular matrix component epidermal growth factor-like protein 7 regulates inflammation in experimental autoimmune encephalomyelitis in the mouse.
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影响因子:
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NEMEROW, GR
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