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Eclipse TE2000 Inverted Microscopes

倒置显微镜

公司名称: Nikon
产品编号: Eclipse TE2000
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Isolation, Culturing, and Differentiation of Primary Myoblasts from Skeletal Muscle of Adult Mice
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Date:
2017-05-05
[Abstract]  Myogenesis is a multi-step process that leads to the formation of skeletal muscle during embryonic development and repair of injured myofibers. In this process, myoblasts are the main effector cell type which fuse with each other or to injured myofibers leading to the formation of new myofibers or regeneration of skeletal muscle in adults. Many steps of myogenesis can be recapitulated through in vitro differentiation of myoblasts into myotubes. Most laboratories use immortalized myogenic cells lines that also differentiate into myotubes. Although these cell lines have been found ... [摘要]  造血是一种多步骤过程,导致在损伤的肌纤维的胚胎发育和修复期间骨骼肌的形成。在这个过程中,成肌细胞是主要的效应细胞类型,彼此融合或损伤肌纤维,导致新成肌纤维的形成或成年人骨骼肌的再生。通过体外成骨细胞分化成肌管可以概括出许多发生肌肉发育的步骤。大多数实验室使用也分化成肌管的永生化肌原细胞系。虽然已经发现这些细胞系对于描绘造血的调节机制非常有用,但是它们通常依赖于细胞的来源和培养条件而显示出很大的变异性。原代成肌细胞被认为是体外研究肌生成的最生理学相关模型。然而,由于成体骨骼肌的丰度低,原代成肌细胞的分离在技术上是有挑战性的。在本文中,我们描述了一种用于从小鼠的成年骨骼肌分离原代成肌细胞的改进方案。我们还描述了其培养和分化成肌管的方法。


背景 造血是一个复杂而高度协调的过程,其涉及多潜能中胚层细胞的测定,以产生成肌细胞,成肌细胞从细胞周期中排出,以及它们最终分化为骨骼肌纤维。 Myogen-5,MyoD,myogenin和MRF4的基因螺旋 - 环 - 螺旋转录因子的一组基因调控因子(MRFs)的顺序表达调控。 Myf-5和MyoD是成肌细胞形成,增殖和存活所需的主要MRFs,而其他MRF(如肌细胞生成素和MRF-4)在肌发生过程中起作用迟发,激活收缩蛋白和其他结构和代谢蛋白的基因表达(白金汉,2003; ...

Isolation of Exosomes from Semen for in vitro Uptake and HIV-1 Infection Assays
Author:
Date:
2017-04-05
[Abstract]  Exosomes are membranous extracellular nanovesicles of endocytic origin. Exosomes are known to carry host and pathogen-derived genomic, proteomic, lipidomic cargos and other extraneous molecules. Exosomes are secreted by diverse cell types into the extracellular milieu and are subsequently internalized by recipient neighboring or distal cells. Upon internalization, exosomes condition recipient cells by donating their cargos and/or activating various signal transduction pathways, consequently regulating physiological and pathophysiological processes. Exosomes facilitate intercellular ... [摘要]  外来体是内膜起源的膜性胞外纳米囊。 已知外来载体携带宿主和病原体衍生的基因组,蛋白质组,脂质体载体和其他外来分子。 外来体由不同细胞类型分泌到细胞外环境中,随后被受体相邻细胞或远端细胞内化。 在内化后,外来体通过捐赠其载体和或激活各种信号转导途径来调节受体细胞,从而调节生理和病理生理过程。 外来体促进细胞间通讯,调节细胞表型和调节微生物发病机制。 我们以前表明精液外来体(SE)抑制各种细胞类型的HIV-1复制。 在这里,我们描述特征SE的详细协议。 该方案可以适应或修改,并用于评估感兴趣的其他细胞外小泡。

外来体是由许多细胞类型的晚期内体室内的内体膜向内发生的结果而引起的膜状纳米囊(Simons and Raposo,2009)。外来体被许多细胞类型(Iglesias等人,2012)释放到细胞外环境中,并且被发现在包括血液在内的生物流体中(Kaur等人,2014)尿(Liem等人,2013)唾液(Madison等人,2015)和母乳(Madison等人,2014; Naslund ,2014)。人类精液含有由包括前列腺分泌腺泡细胞在内的男性生殖道组织产生的纳米囊泡的异质群体(Madison等人,2014; Madison等人,2015) (Sahlen等人,2002)和附睾上皮细胞(Frenette等人,2010)以及vasa感染,睾丸和囊泡腺细胞( ...

Bone Marrow Mesenchymal Stem Cells Adhesion Assay
Author:
Date:
2016-08-05
[Abstract]  Mesenchymal stem cells (MSCs) are widespread in adult organisms and involved in tissue maintenance and repair as well as in the regulation of hematopoiesis and immunologic responses. As cell adhesion play important roles in cell interactions and signaling, to thoroughly evaluate the adhesion ability of MSCs is of vital importance to clarify the mechanism of self-renewal, proliferation, activation and migration of MSCs in different microenvironments. Based on the method by Siler et al., 2000, we revised the protocol in order to provide details on how to evaluate the adhesion ability ... [摘要]  间充质干细胞(MSC)在成年生物体中广泛存在并参与组织维持和修复以及造血作用和免疫反应的调节。 由于细胞粘附在细胞相互作用和信号转导中发挥重要作用,彻底评估MSC的粘附能力对于阐明MSC在不同微环境中的自我更新,增殖,活化和迁移的机制至关重要。 基于Siler等人的方法(2000),我们修订方案以提供关于如何评价来自骨髓(BMSCs)的MSC对细胞外基质(ECM)蛋白的粘附能力的细节 层粘连蛋白。 目前的方案也可以很容易地翻译成MSC与其他治疗或ECM,如胶原,纤连蛋白,等。

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