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首页> 外文期刊>Journal of Cellular Physiology >Nitric Oxide Chemical Donor Affects the Early Phases of In Vitro Wound Healing Process
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Nitric Oxide Chemical Donor Affects the Early Phases of In Vitro Wound Healing Process

机译:一氧化氮供体影响早期的化学物质体外伤口愈合过程的阶段

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An artificial wound in a confluent monolayer of human keratinocyte HaCaT cells or mouse embryo fibroblast Swiss NIH 3T3 cells was used to analyze the effects of the nitric oxide (NO) chemical donor, S-nitroso-N-acetylpenicillamine (SNAP). SNAP exposure promoted an enhanced rate of wound closure and accelerated motility of both keratinocytes and fibroblasts compared to control cells. The wounded monolayer cultures of HaCaT and NIH 3T3 cells, treated with or without SNAP, were monitored under a phase contrast microscope. Structural and ultrastructural modifications were analyzed by scanning electron microscopy (SEM). The images were captured by a digital camera at different time points (0-28h) and the wound area was analyzed through software included in Matlab (R). As early as 15min, SNAP induced significant cytoskeletal remodeling, as shown by immunostaining (phalloidin-labelling), which in turn was associated with increased filopodium number and length rise. NO donor treatment also induced overexpression of Ki-67 protein, a typical marker of cell proliferation, as shown by immunostaining. Both SNAP-induced migration and proliferation were antagonized by the NO-sensitive GC inhibitor 1H-[1,2,4]oxadiazolo[-4,3-a]quinoxalin-1-one (ODQ), which suggests activation of the NO/cGMP signalling cascade in the observed SNAP-induced effects in the early stages of the healing process. Moreover, we provide evidence that PPAR- antagonist (GSK0660) may interfere with NO-mediated wound healing process. J. Cell. Physiol. 231: 2185-2195, 2016. (c) 2016 Wiley Periodicals, Inc.
机译:一个人工汇合的单层的伤口人类的角化细胞HaCaT细胞或老鼠胚胎纤维母细胞瑞士NIH 3 t3细胞被用来一氧化氮(NO)的影响分析化学捐赠者,S-nitroso-N-acetylpenicillamine(临时)。伤口关闭和加速的能动性角化细胞和成纤维细胞相比,控制细胞。和NIH 3 t3细胞,治疗有或没有,相差显微镜下监控。结构和超微结构的修改通过扫描电子显微镜(SEM)分析。数码相机拍摄的图像不同的时间点(0-28h)和伤口区分析了通过软件包含在Matlab(R)。早在15分钟,快速诱导显著细胞骨架改建,如图所示疣状(phalloidin-labelling)又与外肉伪足增加有关数量和长度增加。诱导ki - 67蛋白的过度表达,细胞增殖的典型标志,如图所示疣状。扩散的敌意的任何一个敏感的GC抑制剂1H - [1,2,4] oxadiazolo -4,3-a] quinoxalin-1-one(ODQ),这表明NO / cGMP的激活在观察SNAP-induced信号级联早期愈合的影响的过程。拮抗剂(GSK0660)可能会干扰NO-mediated伤口愈合过程。杂志。231:2185 - 2195年,2016年。期刊、公司。

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