Gene transfer of soluble TGF-β type II receptor inhibits experimental proliferative vitreoretinopathy

Y. Oshima, T. Sakamoto, T. Hisatomi, C. Tsutsumi, H. Ueno, T. Ishibashi

研究成果: ジャーナルへの寄稿学術誌査読

38 被引用数 (Scopus)


This study was conducted to investigate a method of gene therapy for proliferative vitreoretinopathy (PVR) by inhibiting type β transforming growth factor (TGF-β). PVR was induced in pigmented rabbits by intravitreal injection of 50 000 rabbit conjunctival fibroblasts after vitrectomy. Subsequently, the eyes received an intravitreal application of adenovirus vector encoding a soluble type II TGF-β receptor (AdTβ-ExR, n = 10) or adenoviral vector expressing β-galactosidase (AdLacZ) (n = 10) or balanced salt solution (BSS) (n = 6). The eyes were examined ophthalmoscopically for 28 days after surgery, and the clinical stage of PVR was evaluated on a scale of zero to five. Histological examinations were performed on the treated eyes on day 28. All control eyes injected with AdLacZ or BSS developed PVR, characterized by retinal detachment and the formation of intravitreal membranes within 7 days. The eyes injected with AdTβ-ExR also developed features of PVR, but the average severity from day 5 to day 28 was significant lower than in the control eyes (P < 0.05). TGF-β plays an important role in PVR progression in a PVR model, and prevention of TGF-β signaling could be therapeutically useful.

ジャーナルGene Therapy
出版ステータス出版済み - 9月 2002

!!!All Science Journal Classification (ASJC) codes

  • 分子医療
  • 分子生物学
  • 遺伝学


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