与CA5-HIF-1α等离子体复合的奇托桑颗粒增加血管生成,改善伤口愈合
Louis J Born1,2, Sameer Bengali2, Angela Ting Wei Hsu2
1Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA.
International journal of molecular sciences
|September 28, 2023
概括
素颗粒有效地传递基因,以增强皮肤伤口愈合. 这种新型的基因传递方法,使用一种亲疗聚合物,通过促进血管形成,显著改善了糖尿病小鼠的愈合.
科学领域:
- 生物材料科学 生物材料科学
- 基因治疗 基因治疗
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 当地基因传递到皮肤提供治疗优势.
- 有效的伤口愈合需要合适的载体和治疗材料.
- 酸盐是用于伤口应用的有前途的生物材料.
研究的目的:
- 评估素颗粒 (CPs) 作为基因传递的非病毒载体,以增强伤口愈合.
- 评估携带人类CA5-HIF-1α等离子体的CP的血管性潜力.
- 为了在糖尿病伤口模型中比较HIF/CPs与对照的疗效.
主要方法:
- 使用素颗粒 (CPs) 作为非病毒载体.
- 输送的等离子体编码人类CA5-HIF-1α (HIF/CPs).
- 在糖尿病db/db小鼠中比较HIF/CPs,bb/CPs (等离子体骨干) 和单独CPs.
主要成果:
- 素颗粒显示出固有的血管新生效应.
- 在糖尿病小鼠中,HIF/CP显著增强了伤口愈合 (p < 0.01).
- 与对照人群相比,HIF/CPs治疗导致治愈组织中的血管密度增加 (p < 0.01).
结论:
- 素颗粒作为皮肤应用的有效基因传递载体.
- 素和CA5-HIF-1α等离子体的组合促进了伤口愈合和血管生成.
- 这种方法提供了一个多功能平台,可以提供治疗基因以促进伤口修复.
相关概念视频
Regulation of Angiogenesis and Blood Supply
2.6K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.6K
Mechanism of Angiogenesis
5.5K
Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
5.5K


