Femtosecond laser-patterned nanopore arrays for surface-mediated peptide treatment.

Femtosecond laser-patterned nanopore arrays for surface-mediated peptide treatment.
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用于表面介导肽处理的飞秒激光图案纳米孔阵列。

DOI:
10.1016/j.nano.2013.09.002
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发表时间:
2014
期刊:
Nanomedicine : nanotechnology, biology, and medicine
影响因子:
--
通讯作者:
Sung,Hak-Joon
Sung,Hak-Joon
中科院分区:
--
文献类型:
--
作者:
Zachman,AngelaL;Hofmeister,LucasH;Costa,Lino;Boire,TimothyC;Hwang,Yu-Shik;Hofmeister,WilliamH;Sung,Hak-Joon

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这项研究的主要目标是创造易于使用的,可重复使用的基板,能够存储任何肽或生物活性分子所需的一段时间,直到细胞摄取它们,而不需要生物活性分子或肽特异性技术。使用飞秒激光烧蚀将均匀尺寸和分布的纳米孔阵列加工到熔融石英基底中,并通过简单吸附加载肽。通过检查负载N-乙酰基-丝氨酰-乙酰基-赖氨酰-脯氨酸(Ac-SDKP)的纳米孔在有和没有促炎性脂多糖(LPS)的情况下对巨噬细胞吞噬作用和活性氧物质(ROS)的细胞内产生的影响来验证纳米孔基底。我们的结果表明,纳米孔以均匀的阵列方式产生。Ac-SDKP肽稳定储存在纳米孔中并被巨噬细胞内化。与对照底物相比,即使与LPS刺激相结合,也观察到巨噬细胞中ROS产生和吞噬作用的显著减少,表明在孔中装载Ac-SDKP肽显著改善了抗炎作用。来自临床编辑该科学家团队打算创造易于使用,可重复使用的底物,用于在细胞摄取发生之前将肽或生物活性分子储存一段所需的时间,并且不需要生物活性分子或肽特异性技术。它们证明了在均匀阵列中成功产生纳米孔,所述均匀阵列将Ac-SDKP肽稳定地储存在纳米孔中。当肽被巨噬细胞内化时,观察到ROS产生和吞噬作用的显著减少,表明抗炎作用改善。
The major goal of this study was to create easy-to-use, reusable substrates capable of storing any peptides or bioactive molecules for a desired period of time until cells uptake them without the need for bioactive molecule or peptide-specific techniques. Nanopore arrays of uniform size and distribution were machined into fused silica substrates using femtosecond laser ablation and loaded with peptides by simple adsorption. The nanopore substrates were validated by examining the effect of N-acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP) loaded nanopores on macrophage phagocytosis and intracellular production of reactive oxygen species (ROS) with and without the pro-inflammatory lipopolysaccharide (LPS). Our results demonstrated that nanopores were generated in a uniform array fashion. Ac-SDKP peptides were stably stored in nanopores and internalized by macrophages. Significant reductions in ROS production and phagocytosis in macrophages were observed over control substrates, even in combination with LPS stimulation, indicating that loading Ac-SDKP peptides in pores significantly improved the anti-inflammatory effects.From the Clinical EditorThis team of scientists intended to create easy-to-use, reusable substrates for storing peptides or bioactive molecules for a desired period of time before cellular uptake occurs, and without the need for bioactive molecule or peptide-specific techniques. They demonstrate the successful generation of nanopores in a uniform array that stably stores Ac-SDKP peptides in the nanopores. When peptides were internalized by macrophages, significant reductions in ROS production and phagocytosis were observed, indicating improved anti-inflammatory effects.
活性氧和细胞外信号调节激酶 1/2 丝裂原激活蛋白激酶介导肺上皮细胞高氧诱导的细胞死亡。
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