血管内皮生长因子反义寡聚脱氧核苷酸对增生性视网膜病变幼鼠血管内皮生长因子表达的影响

目的 观察血管内皮生长因子（vascular endothelial cell growth factor,VEGF）反义寡聚脱氧核苷酸（antisense oligodeoxynucleotides，ASODNs）对增生性视网膜病变幼鼠模型VEGF表达的影响。 方法 将30只Sprague-Dawley(SD) 新生幼鼠随机分为正常对照组、用药组及未用药组,每组10只。用高浓度氧诱导用药组及未用药组SD幼鼠，建立增生性视网膜病变幼鼠模型。对用药组幼鼠行VEGF ASODNs 球后注射，3d后取各组幼鼠除角膜、巩膜及晶状体外的全部眼内组织及血清，通过竞争性酶免疫测定法检测其VEGF的含量。 结果 用药组幼鼠眼内组织VEGF含量明显低于未用药组（P＜0.05），而与对照组相比差异无显著性的意义（P＞0.05）；用药组幼鼠血清VEGF含量与未用药组相比差异无显著性的意义（P＞0.05），两者均明显低于对照组（P＜0.05）。 结论 VEGF ASODNs能明显抑制由高浓度氧诱导的增生性视网膜病变幼鼠VEGF的表达。 （中华眼底病杂志，2003，19：172-174）

Effect of vascular endothelial cell growth factor (VEGF) antisense oligodeoxynucleotides on expression of VEGF in rats with oxygen-induced retinopathy

Objective To evaluate the effect of vascular endothelial cell growth factor (VEGF) antisense oligodeoxynucleotides (ASODNs) on the expression of VEGF in rats with oxygen-induced retinopathy. Methods Thirty newborn Sprague-Dawley (SD) rats were randomly divided into 3 groups:normal control group, disposal group and non-disposed group, The animal models with oxygen-induced proliferative retinopathy were established by raising the rats in hyperoxic environment. Retrobulbar injection was performed with VEGF ASODNs or normal saline on the rats in 3 groups respectively. The intraocular tissues (all the tissues except the cornea, sclera, and lens) and serum were collected, and the expressions of VEGF were determined by using competitive enzyme immunoassay. Results The expressions of VEGF in intraocular tissues of rats in disposal group were significantly lower than those in non-disposed group (P<0.05), and there was no statistical difference between the disposal and normal control group (P>0.05). There was no significant difference of the expressions of VEGF in serum of rats between the disposal and non-disposed group (P>0.05), which were both lower than those in the normal control group (P<0.05). Conclusion VEGF ASODNs could significantly inhibit the expression of VEGF in intraocular tissues.