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TrypLe Express

TrypLE TM Express Enzyme(1X),无酚红

公司名称: Thermo Fisher Scientific
产品编号: 12604021
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Small Molecule-Based Retinal Differentiation of Human Embryonic Stem Cells and Induced Pluripotent Stem Cells
Author:
Date:
2018-06-20
[Abstract]  Retinal degeneration leads to loss of light-sensing photoreceptors eventually resulting in vision impairment and impose a heavy burden on both patients and the society. Currently available treatment options are very limited and mainly palliative. Ever since the discovery of human pluripotent stem cell technologies, cell replacement therapy has become a promising therapeutic strategy for these patients and may help restore visual function. Reproducibly generating enriched retinal cells including retinal progenitors and differentiated retinal neurons such as photoreceptors using human embryonic ... [摘要]  视网膜变性导致光感受器丧失,最终导致视力损害,并给患者和社会带来沉重的负担。目前可用的治疗方案非常有限,主要是姑息治疗。自从人类多能干细胞技术的发现以来,细胞替代疗法已成为这些患者的有希望的治疗策略,并可能有助于恢复视觉功能。使用人类胚胎干(ES)细胞和诱导多能干(iPS)细胞在培养皿中重现性地产生包括视网膜祖细胞和分化的视网膜神经元(例如光感受器)的富集视网膜细胞是开发基于干细胞的治疗的重要的第一步。此外,这将为研究疾病机制提供可靠和充足的人类视网膜细胞供应。在这里,我们描述了一种小分子视网膜诱导协议,已被用于生成视网膜祖细胞和分化的视网膜神经元,包括来自几个人ES和iPS细胞系的光感受器。通过该方案产生的视网膜细胞可以在视网膜下移植后的几个月内存活并且功能性地整合到正常和患病的小鼠视网膜中。

【背景】世界各地的一些团体正在开发用于从人多能干细胞产生特定细胞类型的方法。这些细胞可能在再生医学的未来作为替代细胞的来源中发挥关键作用。这些新产生的人类细胞在开发更好和更准确的人类疾病模型中非常有用,然后可用于发现具有更好功效和安全性的新药。

我们的工作重点是影响全球数百万人的视网膜退行性疾病,如黄斑变性和视网膜色素变性。视网膜中光感受器的死亡通常与这些疾病相关,并导致严重损伤或全部视力丧失。没有有效的药物治疗可以治愈这些疾病。
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A Co-culture Assay to Determine Efficacy of TNF-α Suppression by Biomechanically Induced Human Bone Marrow Mesenchymal Stem Cells
Author:
Date:
2017-08-20
[Abstract]  The beneficial effects of mesenchymal stem cell (MSC)-based cellular therapies are believed to be mediated primarily by the ability of MSCs to suppress inflammation associated with chronic or acute injury, infection, autoimmunity, and graft-versus-host disease. To specifically address the effects of frictional force caused by blood flow, or wall shear stress (WSS), on human MSC immunomodulatory function, we have utilized microfluidics to model WSS at the luminal wall of arteries. Anti-inflammatory potency of MSCs was subsequently quantified via measurement of TNF-α production by activated ... [摘要]  认为基于间充质干细胞(MSC)的细胞疗法的有益作用主要是由能够抑制慢性或急性损伤,感染,自身免疫和移植物抗宿主病相关炎症的能力介导的。 为了专门解决由血流或壁剪应力(WSS)引起的摩擦力对人MSC免疫调节功能的影响,我们利用微流体在动脉腔壁上建模WSS。 随后通过在共培养测定中通过活化的小鼠脾细胞测量TNF-α产生来量化MSC的抗炎效力。 TNF-α抑制测定作为MSC效力的功能评估的可重现平台,并且表现出作为MSC治疗功效的替代测定的预测价值。
【背景】间充质干细胞(MSC)的免疫调节活性由直接细胞相互作用和旁分泌因子介导(Singer和Caplan,2011;英语,2013)。 MSCs被认为是源于与骨髓和各种组织内脉管系统内皮细胞相关的周细胞(Sacchetti et al。,2007; Crisan et al。,2008)。这种独特的血管周围位置将它们置于血流中的炎症和其他可溶性因子附近,使其监测系统信号。事实上,将壁壁细胞募集到内皮是血管成熟的关键事件,周细胞在血管维持和完整性中起关键作用(Benjamin et al。,1998; ...

Isolation of Murine Adipose Tissue-derived Mesenchymal Stromal Cells (mASCs) and the Analysis of Their Proliferation in vitro
Author:
Date:
2015-11-05
[Abstract]  Mesenchymal stromal cells (MSCs) are non-hematopoietic, perivascular cells which support hematopoiesis and are thought to participate in tissue repair in vivo. MSCs can be isolated from various tissues and organs and are defined in vitro as plastic adherent cells expressing CD73, CD90, CD105 (human MSCs) or CD29, CD44, sca-1 (murine MSCs) which can differentiate into osteoblasts, adipocytes, chondroblasts and myocytes. MSCs possess potent immunomodulatory and trophic capacities in vitro and in vivo and have thus emerged as a promising treatment of ... [摘要]  间充质基质细胞(MSC)是非造血的血管周围细胞,其支持造血并且被认为在体内参与组织修复。 MSC可以从各种组织和器官中分离并在体外定义为表达CD73,CD90,CD105(人MSC)或CD29,CD44,sca-1(鼠MSC)的塑性贴壁细胞,其可以分化成骨细胞,脂肪细胞,软骨细胞和肌细胞。 MSC在体外具有强的免疫调节和营养能力,并且在体内具有强的免疫调节能力,因此已经成为炎症/自身免疫疾病的有希望的治疗。 MSC对人类疾病的使用依赖于大量细胞的注射,并且许多努力已经集中在获得具有高增殖能力的MSC。因此,建立简单和准确的测定MSC增殖的协议对于基础研究和应用研究都是重要的。目前的方案提供了关于如何使用xCELLigence系统和CellTiter-Blue试剂(Carrillo-Galvez等人,)分离和测量源自腹股沟和/或腹内脂肪组织(mASCs)的鼠MSC的增殖的细节>,2015; Anderson ,,2013)。下面描述的方案也可以容易地翻译成人MSC。

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