Abstract:
:Retinal neovascularization (NV) due to retinal ischemia is one of the major causes of vision reduction in patients with different types of retinal diseases although anti-vascular endothelial growth factor (anti-VEGF) therapy can partially reduce the size of the retinal NV. We recently reported that periostin plays an important role in the development of NV and the formation of preretinal fibrovascular membranes, but the role of the splice variants of periostin on retinal NV has not been determined. We examined the expressions of periostin splice variants in the ischemic retinas of a mouse model of oxygen-induced retinal NV. We also studied the function of periostin splice variants on retinal NV using periostin knock out mice, and the effects of anti-periostin antibodies on retinal NV. Our results showed that the expressions of the periostin splice variants were increased in ischemic retinas. The degree of increase of periostin lacking exon 17 was the highest among the periostin splice variants examined. Both genetic ablation of periostin exons 17 and 21 and antibodies for periostin exons 17 and 21 affected preretinal pathological NV. Inhibition of exon 17 of periostin had the greatest effect in reducing preretinal pathological NV. These findings suggest a causal link between periostin splice variants and retinal NV, and an intravitreal injection of antibody for exon 17 and exon 21 of periostin should be considered to inhibit preretinal pathological NV.
journal_name
Exp Eye Resjournal_title
Experimental eye researchauthors
Nakama T,Yoshida S,Ishikawa K,Kobayashi Y,Abe T,Kiyonari H,Shioi G,Katsuragi N,Ishibashi T,Morishita R,Taniyama Ydoi
10.1016/j.exer.2016.10.012subject
Has Abstractpub_date
2016-12-01 00:00:00pages
133-140eissn
0014-4835issn
1096-0007pii
S0014-4835(16)30342-6journal_volume
153pub_type
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