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Nogo-A-targeting antibody promotes visual recovery and inhibits neuroinflammation after retinal injury
被引:20
作者:
Baya Mdzomba, Julius
[1
,2
]
Joly, Sandrine
[1
,2
]
Rodriguez, Lea
[1
,2
]
Dirani, Ali
[1
,2
]
Lassiaz, Patricia
[3
,4
]
Behar-Cohen, Francine
[3
,4
]
Pernet, Vincent
[1
,2
]
机构:
[1] Univ Laval, CUO Rech, Ctr Rech, CHU Quebec, Quebec City, PQ, Canada
[2] Univ Laval, Fac Med, Dept Ophtalmol, Quebec City, PQ, Canada
[3] Paris Descartes Univ, Sorbonne Univ, Inserm, UMR S 1138,Team 17,Ctr Rech Cordeliers, Paris, France
[4] Univ Paris 06, Paris, France
基金:
加拿大创新基金会;
关键词:
OPTOKINETIC RESPONSE;
AXONAL REGENERATION;
NEURITE OUTGROWTH;
CELL ACTIVATION;
ADULT-RAT;
IN-VIVO;
KAPPA-B;
GLUTAMATE;
RECEPTOR;
PROTEIN;
D O I:
10.1038/s41419-020-2302-x
中图分类号:
Q2 [细胞生物学];
学科分类号:
071009 ;
090102 ;
摘要:
N-Methyl-D-aspartate (NMDA)-induced neuronal cell death is involved in a large spectrum of diseases affecting the brain and the retina such as Alzheimer's disease and diabetic retinopathy. Associated neurological impairments may result from the inhibition of neuronal plasticity by Nogo-A. The objective of the current study was to determine the contribution of Nogo-A to NMDA excitotoxicity in the mouse retina. We observed that Nogo-A is upregulated in the mouse vitreous during NMDA-induced inflammation. Intraocular injection of a function-blocking antibody specific to Nogo-A (11C7) was carried out 2 days after NMDA-induced injury. This treatment significantly enhanced visual function recovery in injured animals. Strikingly, the expression of potent pro-inflammatory molecules was downregulated by 11C7, among which TNF alpha was the most durably decreased cytokine in microglia/macrophages. Additional analyses suggest that TNF alpha downregulation may stem from cofilin inactivation in microglia/macrophages. 11C7 also limited gliosis presumably via P.Stat3 downregulation. Diabetic retinopathy was associated with increased levels of Nogo-A in the eyes of donors. In summary, our results reveal that Nogo-A-targeting antibody can stimulate visual recovery after retinal injury and that Nogo-A is a potent modulator of excitotoxicity-induced neuroinflammation. These data may be used to design treatments against inflammatory eye diseases.
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