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Penicillin-Streptomycin Solution 100X

Company: Caisson Laboratories
Catalog#: PSL01-100ML
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Mandibular Explant Assay for Investigating Extrinsic Stimuli on Bone and Cartilage Development
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Date:
2017-12-05
[Abstract]  A major issue in developmental biology is to determine how embryonic tissues respond to molecular signals in a timely manner and given the position-restricted instructions during morphogenesis, of which Meckel’s cartilage is a classical example. The ex-vivo explant model is a practical and convenient system that allows investigation of bone and cartilage responses to specific stimuli under a controlled manner that closely mimics the in vivo conditions. In this protocol, the explant model was applied to test whether Meckel’s cartilage and surrounding tissues are responsive to the Endothelin1 (Edn1) signaling molecule and whether it would rescue the phenotype of genetic mutations. The system allows a high degree of manipulation in terms of the concentrations of exogenous ... [摘要]  发育生物学中的一个主要问题是确定胚胎组织如何及时响应分子信号,并且在形态发生期间给予位置限制指示,其中Meckel软骨是一个经典的例子。 体外外植体模型是一种实用且便利的系统,其允许以受控的方式调查对特定刺激的骨和软骨反应,所述方式严格模拟体内条件。 在这个协议中,外植模型被用来测试Meckel的软骨和周围组织是否对内皮素1(Edn1)信号分子有反应,以及是否会拯救基因突变的表型。 该系统允许在添加到外植体中的外源性化合物的浓度,关于测量下颌骨发育的时间点以及施用外源分子和致畸剂的方法方面进行高度的操作。

【背景】颅面畸形是人类最常见的先天性出生缺陷(Miettinen等人,1999)。许多这些畸形发生在面部形态发生期间,这是一个复杂的多步骤过程,其中颅神经嵴细胞迁移到咽弓以产生许多面部结构(Jin等人,2011)。

特定基因内的两种变异以及基因 - 基因相互作用都可能导致颅面变形。 IRF6基因突变导致头面部外胚层和上皮细胞的形成,导致唇裂,腭裂和下颌畸形。与 IRF6 相比, TWIST1 基因调节胚胎发育期间的神经管闭合和颅骨发育期间的颅缝融合。 TWIST1 ...

In vitro Assays for Measuring Endothelial Permeability by Transwells and Electrical Impedance Systems
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Date:
2017-05-05
[Abstract]  Vascular leakage is an important feature in several diseases, such as septic shock, viral hemorrhagic fever, cancer metastasis and ischemia-reperfusion injuries. Thus establishing assays for measuring endothelial permeability will provide insight into the establishment or progression of such diseases. Here, we provide transwell permeability assay and electrical impedance sensing assay for studying endothelial permeability in vitro. With these methods, the effect of a molecule on endothelial permeability could be defined. [摘要]  血管渗漏是脓毒性休克,病毒性出血热,癌症转移和缺血再灌注损伤等几种疾病的重要特征。因此,建立测定内皮通透性的测定将提供对这些疾病的建立或进展的洞察。在这里,我们提供transwell渗透性测定和用于研究体内内皮通透性的电阻抗感测测定。通过这些方法,可以定义分子对内皮通透性的影响。

背景 内皮屏障是一个良好调节的结构,其在正常生理条件下保持对流体和分子的最小和选择性渗透性(Komarova和Malik,2010)。内皮屏障的破坏在暴露于炎性细胞因子,病原体感染或癌症转移中发生,其诱导细胞骨架,细胞 - 细胞连接或细胞与基质附着的破坏。血管通透性的增加是许多疾病的重要特征,包括缺血再灌注损伤,败血症,病毒性出血热和癌症。为了筛选哪个分子调节血管通透性,有必要建立体外的体外试验以在扩张到动物研究之前测试内皮通透性。有两种可用的体外试验体外渗透性试验,transwell渗透性测定法和电阻抗检测装置(Bischoff等,2016)。 ...

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