Effect of etanercept on post-traumatic proliferative vitreoretinopathy

• 作者: Hua Yan Mei Du Xiao-Feng Chen Xiao-Hong Wang
• 来源期刊: 国际眼科杂志:英文版
• 学科: 医学
• 关键词: etanercept/rh TNFR-Ig traumatic PROLIFERATIVE VITREORETINOPATHY TNF-Α inhibitor/anti TNF-Α rabbit
• 年，卷（期）: 2019,（5）
• 页码范围: 731-738
• 页数: 8页
• 分类号: R774.1

摘要

AIM: To evaluate the safety and efficacy of intravitreal etanercept in the inhibiting of proliferative vitreoretinopathy(PVR) in a model of penetrating ocular injury. METHODS: Penetrating ocular injury on the retina of rabbit was induced, which was subsequently treated using 0.1 mL of sterile water or 0.1 m L of 12.5 mg/mL etanercept. The development of PVR was evaluated by fundus images, the B-scan, and the histopathology. The mRNA and protein expressions of tumor necrosis factor-α(TNF-α), transforming growth factor β(TGF-β) as well as connective tissue growth factor(CTGF) were examined at various time points after the etanercept injection with the reverse transcriptase-polymerase chain reaction(RT-PCR) and Western blotting, respectively. The safety of etanercept was evaluated by injection of 12.5 mg/mL etanercept into a normal rabbit eye without penetrating trauma. RESULTS: Clinical assessment and grading clearly demonstrated that the PVR formation was prevented in etanercept-treated animals, which was confirmed via fundus images, B-scan and histopathology. The RT-PCR and Western blotting showed increased mRNA and protein expression of TNF-α, TGF-β as well as CTGF in the retina of rabbits following penetrating ocular injury, and these factors were dramatically mitigated by ocular etanercept treatment. In addition, there was no adverse effect of etanercept intravitreal injection in normal eyes without penetrating trauma, it showed normal structure and histology. CONCLUSION: The etanercept is a potential therapy for inhibiting PVR development. To assess the clinic application of the etanercept in preventing PVR, further clinical studies are required.