骨关节炎基因疗法:从概念到临床试验的30年的旅程
Christopher H Evans1, Steven C Ghivizzani2, Paul D Robbins3
1Departments of Physical Medicine & Rehabilitation, Orthopaedic Surgery, and Molecular Medicine, Mayo Clinic, Rochester, Minnesota, USA.
概括
这项研究证明了一种用于治疗骨关节炎 (OA) 的新型基因疗法的安全性和持续表达,该疗法使用腺相关病毒 (AAV) 通过关节内输送互白素-1受体对抗剂 (IL-1Ra).
科学领域:
- 再生医学是一种再生医学.
- 基因治疗 基因治疗
- 整形医生 整形医生
背景情况:
- 在关节疾病的关节内基因转移方面进行了30多年的研究.
- 开创了第一个在人体内使用IL-1Ra的类风湿性关节炎的ex vivo基因转移.
- 转移到体内腺相关病毒 (AAV) 基因传递用于骨关节炎 (OA).
研究的目的:
- 评估活体AAV基因传递系统 (sc-rAAV2.5IL-1Ra) 对于骨关节炎的安全性和有效性.
- 评估治疗基因 (IL-1Ra) 在单次关节内注射后的持续表达.
- 探索基因治疗在再生骨科的潜力.
主要方法:
- 在临床前模型 (老鼠,马) 中开发并测试了sc-rAAV2.5IL-1Ra载体.
- 在OA患者中进行了I期临床试验 (NCT02790723),在OA患者中增加剂量.
- 在注射后的一年内监测安全性和基因表达.
主要成果:
- 载体sc-rAAV2.5IL-1Ra在第一阶段试验中证明了安全性.
- 在一次关节内注射后,实现了转基因IL-1Ra的持续表达.
- 患者报告的结局显示改善,尽管安慰剂效应需要进一步调查.
结论:
- 用sc-rAAV2.5IL-1Ra进行关节内AAV基因治疗是安全的,并使OA患者的IL-1Ra表达持续.
- 这种方法对治疗OA和其他退行性,炎症性,纤维化和自身免疫性疾病具有前景.
- 进一步的试验 (NCT05835895) 正在进行中,以解决尚未解决的问题并确认有效性.
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