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Fluorescent microscope

研究倒置显微镜

Company: Olympus
Catalog#: IX73
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Histological and Immunohistochemical Examination of Stem Cell Proliferation and Reepithelialization in the Wounded Skin
Author:
Date:
2021-01-20
[Abstract]  

The skin is the largest organ that protects our body from the external environment and it is constantly exposed to pathogenic insults and injury. Repair of damage to this organ is carried out by a complex process involving three overlapping phases of inflammation, proliferation and remodeling. Histological analysis of wounded skin is a convenient approach to examine broad alterations in tissue architecture and investigate cells in their indigenous microenvironment. In this article we present a protocol for immunohistochemical examination of wounded skin to study mechanisms involved in regulating stem cell activity, which is a vital component in the repair of the damaged tissue. Performing such histological analysis enables the understanding of the spatial relationship between cells that

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[摘要]  [摘要]皮肤是保护我们的身体免受外界环境影响最大的器官,并且不断受到病原体的伤害和伤害。修复该器官的水坝年龄是通过复杂的过程进行的,该过程涉及炎症,增殖和重塑的三个重叠阶段。对受伤的皮肤进行组织学分析是检查组织结构的广泛变化并研究其固有微环境中的细胞的便捷方法。在本文中,我们提出了一种用于受伤皮肤的免疫组织化学检查的方案,以研究参与调节干细胞活性的机制,这是修复受损组织的重要组成部分。进行这种组织学分析可以了解在特殊伤口微环境中相互作用的细胞之间的空间关系。本文所述的分析工具,允许邻近伤口和重新程度的干细胞的再生能力的定量测量-伤口闭合过程中的上皮。这些协议可以适用于研究受伤皮肤内的众多细胞过程和细胞类型。


[背景]皮肤具有巨大的再生能力,这归因于位于整个器官不同部位的众多常驻干细胞种群的存在。免疫组织学方法与目标细胞的遗传标记相结合,已大大提高了体内对干细胞调节和组织稳态的认识(Blanpain等,2004)。这些方法已用于鉴定与毛囊相关的多个干细胞群体,包括位于毛发隆突中的表皮和黑素细胞干细胞,次级毛发芽中的快速循环祖细胞以及真皮鞘中存在的真皮干细胞(Greco等。,2009;拉赫马尼等人,2020)。这些干细胞具有自我更新,多能性和高度增殖性,可在生理性毛发循环过程中再生组织,并在伤口愈合过程中修复损伤。引人注目的是,由于这些细胞分裂并迅速向伤口部位进展,使上皮中的干细胞对皮肤损伤迅速做出反应,从而使伤口重新上皮化(Ito等人,2005)。 ...

Bacterial Intracellular Sodium Ion Measurement using CoroNa Green
Author:
Date:
2017-01-05
[Abstract]  The bacterial flagellar type III export apparatus consists of a cytoplasmic ATPase complex and a transmembrane export gate complex, which are powered by ATP and proton motive force (PMF) across the cytoplasmic membrane, respectively, and transports flagellar component proteins from the cytoplasm to the distal end of the growing flagellar structure where their assembly occurs (Minamino, 2014). The export gate complex can utilize sodium motive force in addition to PMF when the cytoplasmic ATPase complex does not work properly. A transmembrane export gate protein FlhA acts as a dual ion channel to conduct both H+ and Na+ (Minamino et al., 2016). Here, we describe how to measure the intracellular Na+ concentrations in living Escherichia coli ... [摘要]  细菌鞭毛III型出口设备由细胞质ATP酶复合物和跨膜出口门复合物组成,分别由ATP和质子动力(PMF)驱动跨越细胞质膜,并将鞭毛成分蛋白从细胞质转运到远端结束它们的组装发生的鞭毛结构(Minamino,2014)。当细胞质ATPase复合物不能正常工作时,出口门复合物可以利用除PMF之外的钠动力。跨膜出口门蛋白FlhA充当双离子通道,以进行H + 和Na + (Minamino等人,2016)。在这里,我们描述如何使用钠敏感荧光染料CoroNa Green(Minamino等人)测量活细胞大肠杆菌细胞中的细胞内Na+浓度,。,2016)。通过荧光显微镜检测CoroNa Green的荧光强度,可以定量测定细胞内Na +的浓度。

背景 通过荧光成像技术测量细胞内Na +浓度能够在单细胞水平上更精确和定量地进行,因为每个细胞的背景噪声可以通过图像分析程序去除。 Lo <等等。已经建立了用于测量活体中的细胞质Na +浓度的方案。使用钠敏感荧光染料钠绿,并显示细胞质Na +浓度维持在10mM左右。大肠杆菌在0至100mM的外部Na +浓度范围的宽范围内(Lo et al。,2006)。因为CoroNa ...

Electro-fusion of Gametes and Subsequent Culture of Zygotes in Rice
Author:
Date:
2016-12-20
[Abstract]  Electro-fusion system with isolated gametes has been utilized to dissect fertilization-induced events in angiosperms, such as egg activation, zygote development and early embryogenesis, since the female gametophytes of plants are deeply embedded within ovaries. In this protocol, procedures for isolation of rice gametes, electro-fusion of gametes, and culture of the produced zygotes are described. [摘要]  已经利用具有孤立配子的电融合系统来解剖被子植物中受精诱导的事件,例如卵活化,合子发育和早期胚胎发生,因为植物的雌配子体深深嵌入卵巢内。在该方案中,描述了分离水稻配子,配子电融合和产生的受精卵培养的程序。

背景 被子植物的受精和后续事件,如胚胎发生和胚乳发育,发生在深入嵌入卵母细胞的胚囊中(Nawaschin,1898; Guignard,1899; Russell,1992; Raghavan,2003)。因此,分离的配子已被用于体外受精(IVF)系统,以观察和分析受精和后处理过程(Wang等人,2006年)。用于被子植物的IVF系统包括三种基本微技术的组合:(i)男性和女性配子的分离和选择; (ii)配对对和(iii)单细胞培养物的融合(Kranz,1999)。已经在广泛的植物物种中建立了分离活的配子的程序,包括单子叶植物和双子叶植物(综述于Kranz,1999和Okamoto,2011)。分离的配子可以电融合(Kranz等人,1991; Uchiumi等人,2006和2007)或化学地使用钙(Faure等人,1994; Kranz和Lörz,1994; Khalequzzaman和Haq,2005),聚乙二醇(Sun等,1995; ...

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