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Stericup-GP Sterile Vacuum Filtration System

Company: Merck
Catalog#: SCGPU02RE
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Vascular Permeability Assay in Human Coronary and Mouse Brachiocephalic Arteries
Author:
Date:
2018-10-20
[Abstract]  Coronary artery disease remains an important cause of morbidity and mortality. Previous work, including ours, has focused on the role of intraplaque hemorrhage, particularly from immature microvessel angiogenesis, as an important contributor to plaque progression via increases in vascular permeability leading to further intraplaque hemorrhage, which increases red cell membrane-derived free cholesterol in plaque content and inflammatory cell recruitment. Evans Blue Dye (EBD) assay is widely used as a standard assay for vasculature permeability. However, the method has not been established in fresh human coronary artery autopsy samples to evaluate intraplaque microvessel permeability and angiogenesis. In this protocol, we describe a method to evaluate human coronary samples for ... [摘要]  冠状动脉疾病仍然是发病率和死亡率的重要原因。以前的研究,包括我们的研究,都集中在斑块内出血的作用,特别是来自未成熟的微血管血管生成,作为斑块进展的重要因素,通过增加血管通透性导致进一步的斑块内出血,增加斑块中红细胞膜来源的游离胆固醇内容和炎症细胞募集。 Evans Blue Dye(EBD)测定法广泛用作脉管系统渗透性的标准测定法。然而,该方法尚未在新鲜人冠状动脉尸检样本中建立,以评估斑块内微血管通透性和血管生成。在该方案中,我们描述了评估人类冠状动脉样本的微血管通透性的方法,包括灌注冠状动脉的程序,用于组织学分析和免疫染色的动脉样本的收集以及使用适当的方法来分析图像。还提供了在小鼠模型中使用FITC-葡聚糖以评估血管通透性的任选程序。这些Evans Blue Dye程序可用于在各种病理条件下提供人样品和动物模型中内皮完整性和渗透性的功能测量。

【背景】
血管内皮细胞主动调节血浆成分和循环细胞(包括白细胞)从血液到亚内皮组织的浸润。这种机制通常被认为是动脉粥样硬化起始和发展的关键步骤(Mundi et al。>,2018)。血管通透性的调节通过内皮细胞 - 细胞连接的协调打开和闭合来实现。在几种疾病状态下,内源性药物如组胺,凝血酶和血管内皮生长因子(VEGF)显着但可逆地以不同方式改变细胞 - ...

Generation of Chemically Induced Liver Progenitors (CLiPs) from Rat Adult Hepatocytes
Author:
Date:
2018-01-20
[Abstract]  Primary mature hepatocytes (MHs) or their progenitor cells are candidate cell sources for cell transplantation therapy in severe liver diseases. However, stable culture of these cells or generation of equivalent cells from pluripotent stem cells has been limited. Using a cocktail of small molecules that we previously found useful in stable culture of multiple types of stem/progenitor cells, we recently established a novel method to generate bipotent liver progenitor cells, named chemically induced liver progenitors (CLiPs), from adult rat MHs. Here, we describe a detailed protocol for the induction of rat CLiPs. We first describe the method to isolate primary rat MHs and then describe how to induce CLiPs from these MHs. In addition, we describe a method to evaluate the bipotentiality of ... [摘要]  原代成熟肝细胞(MH)或其祖细胞是重症肝病中细胞移植治疗的候选细胞来源。然而,这些细胞的稳定培养或多能干细胞的等效细胞的产生受到限制。我们使用先前在多种类型的干/祖细胞稳定培养中发现有用的小分子混合物,最近建立了一种从成年大鼠MHs产生双能肝脏祖细胞(命名为化学诱导肝祖细胞(CLiPs))的新方法。在这里,我们描述了诱导大鼠CLiPs的详细方案。我们首先描述分离原代鼠MH的方法,然后描述如何从这些MH中诱导CLiPs。另外,我们描述了一种评估产生的CLiPs分化成肝细胞和胆管上皮细胞的双能性的方法。我们还介绍了如何通过长期的文化和详细的示例数据建立稳定的CLiP。可以在2周内产生初级CLiPs,并且可以在2.5-4个月内建立经历10次传代的稳定的CLiPs,批次间变异性。
【背景】对于实现肝病再生医学的新型细胞来源有着强烈的需求。目前唯一的治疗终末期肝病的方法是肝移植,但是由于供者短缺,其应用受到限制。最近,我们小组提出了一种产生能够在体外稳定地扩增的新型LPC的方法,并且可以以广泛的效率重新繁殖慢性肝炎动物模型的损伤肝脏(Katsuda等人, / ...

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