用于从生物材料中释放模式蛋白质的基因编码的可光切割连接器
Jared A Shadish, Alder C Strange, Cole A DeForest1,2
1Department of Bioengineering , University of Washington , Seattle , Washington 98105 , United States.
Journal of the American Chemical Society
|September 19, 2019
概括
研究人员开发了一种使用光线精确控制生物材料中的蛋白质释放的新方法. 这种技术保持了蛋白质的活性,并使其能够在再生医学和诊断领域应用.
科学领域:
- 生物材料科学
- 生物技术
- 分子生物学
背景情况:
- 蛋白质对于生物过程至关重要,但控制它们的呈现和从生物材料中释放仍然具有挑战性.
- 现有的方法通常会产生异质的蛋白质群体,其活性降低,从而限制了生长因子等脆弱生物分子的应用.
研究的目的:
- 开发一种模块化,可扩展的方法,以高精度从水凝中固定和光释放生物活性蛋白质.
- 用于控制释放应用的单分散,遗传编码的蛋白质仿真体.
主要方法:
- 通过可光裂蛋白 (PhoCl) 将蛋白质与水凝结合,利用了化学酶反应,生物对应化学和光遗传学.
- 使用可见光 (λ ≈ 400 nm) 的基于面具和激光扫描的光刻法来控制蛋白质的释放.
- 已证明PhoCl链接器的特定位点固定和剂量依赖的不可逆转的脊柱光解.
主要成果:
- 成功制造出具有生物活性的单分散蛋白-水凝结合物.
- 从水凝中获得精确的时间空间控制蛋白质释放.
- 在3D中展示了光模式表皮生长因子,以促进异型细胞增殖.
结论:
- 开发的方法提供了一种可扩展和精确的方法来控制生物材料中的蛋白质呈现和释放.
- 这种技术保留了蛋白质的活性,并使得模式交付成为可能,为诊断,药物交付和再生医学提供了希望.
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