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转化生长因子-β3的腺病毒介导的基因转移,但不转化生长因子-β1,抑制了收缩性重塑,并减少了冠状动脉血管形成术后的光线损失.

Paul A Kingston1, Sanjay Sinha, Clare E Appleby

  • 1Vascular Gene Therapy Unit, University of Manchester, Manchester, UK. paul.a.kingston@man.ac.uk

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此摘要是机器生成的。

转化生长因子-β3 (TGF-β3) 基因疗法通过抑制细胞外矩阵重塑来减少血管塑性手术后的光线损失. 这种方法在预防复缩症方面表现有前途.

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科学领域:

  • 心血管生物学 心血管生物学
  • 基因治疗 基因治疗
  • 细胞外矩阵生物学 细胞外矩阵生物学

背景情况:

  • 细胞外矩阵 (ECM) 改造是后皮肤透光冠状动脉血管形成术 (PTCA) 后复原的关键.
  • 转化生长因子-β1 (TGF-β1) 促进ECM沉积,有助于复原病原体的产生.
  • 转化生长因子-β3 (TGF-β3) 已经显示出降低TGF-β1诱导的ECM沉积在伤口愈合中的潜力.

研究的目的:

  • 研究冠心内TGF-β3和TGF-β1表达对血管塑造术后光线损失的影响.
  • 评估TGF-beta3和TGF-beta1基因传递对PTCA后ECM重塑和血管收缩的影响.

主要方法:

  • 猪冠状动脉用携带TGF-beta3,TGF-beta1或lacZ (对照) 或PBS的腺病毒载体进行治疗.
  • 进行了血管整形手术,28天后进行了形态分析,以评估光线区域和ECM组成.
  • 进行了光损失,外部弹性层面面积和原蛋白含量量的量化.

主要成果:

  • 与lacZ和PBS对照组相比,TGF-beta3治疗显著减少了光线损失 (P=0.003).
  • 治疗TGF-β1并没有显著减少光线损失 (P=0.48).
  • 与对照组和TGF-beta1组不同,TGF-beta3增加了外部弹性膜面积和偶然原含量.

结论:

  • 冠内TGF-β3表达有效地抑制了收缩性重塑,并减少了血管形成术后的光线损失.
  • 在TGF-beta3处理的血管中增加的偶然原蛋白可能会充当支架,防止收缩.
  • 用TGF-beta3向ECM重塑的基因疗法有潜力用于复原性瘤预防.