Abstract:
BACKGROUND:This study was to examine the expression of total vascular endothelial growth factor (VEGF) and the anti-angiogenic VEGF 165 b isoform in the vitreous body of retinopathy of prematurity (ROP) patients, and to further study the role of the VEGF splicing in the development of ROP. METHODS:This was a prospective clinical laboratory investigation study. All patients enrolled received standard ophthalmic examination with stage 4 ROP that required vitrectomy to collect the vitreous samples. The control samples were from congenital cataract patients. The expression of total VEGF and the anti-angiogenic VEGF 165 b were measured by enzyme-linked immunosorbent assay. Results were analyzed statistically using nonparametric tests. RESULTS:The total VEGF level was markedly elevated in ROP samples while VEGF 165 b was markedly decreased compared to control group. The relative protein expression level of VEGF 165 b isoform was significantly decreased in ROP patients which were correlated with the ischemia-induced neovascularization. CONCLUSIONS:There was a switch of VEGF splicing from anti-angiogenic to pro-angiogenic family in ROP patients. A specific inhibitor that more selectively targets VEGF 165 and controls the VEGF splicing between pro- and anti-angiogenic families might be a more effective therapy for ROP.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Zhao M,Xie WK,Bai YJ,Huang LZ,Wang B,Liang JH,Yin H,Li XX,Shi Xdoi
10.4103/0366-6999.164937subject
Has Abstractpub_date
2015-09-20 00:00:00pages
2505-9issue
18eissn
0366-6999issn
2542-5641pii
ChinMedJ_2015_128_18_2505_164937journal_volume
128pub_type
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