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Company: Life Technologies
Catalog#: AM12400
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Intestinal Co-culture System to Study TGR5 Agonism and Gut Restriction
Author:
Date:
2021-03-20
[Abstract]  

The activation of the Takeda G-protein receptor 5 (TGR5, also known as the G protein-coupled bile acid receptor 1, GPBAR1) in enteroendocrine L-cells results in secretion of the anti-diabetic hormone Glucagon-Like Peptide 1 (GLP-1) into systemic circulation. Consequently, recent research has focused on identification and development of TGR5 agonists as type 2 diabetes therapeutics. However, the clinical application of TGR5 agonists has been hampered by side effects of these compounds that primarily result from their absorption into circulation. Here we describe an in vitro screening protocol to evaluate the TGR5 agonism, GLP-1 secretion, and gut-restricted properties of small molecules. The protocol involves differentiating gut epithelial and endocrine cells together in transwells to

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[摘要]  [摘要]肠内分泌L细胞中的Takeda G蛋白受体5(TGR5,也称为G蛋白偶联胆汁酸受体1,GPBAR1)的激活导致抗糖尿病激素胰高血糖素样肽1的分泌。 (GLP-1)进入全身循环。因此,最近的研究集中于鉴定和开发TGR5激动剂作为2型糖尿病治疗剂。但是,TGR5激动剂的临床应用受到这些化合物的副作用的阻碍,这些副作用主要是由于它们吸收进入循环系统所致。这里我们描述一个体外 筛选协议以评估TGR5激动剂,GLP-1分泌和小分子的肠道限制性特性。该协议涉及在跨孔中将肠道上皮细胞和内分泌细胞一起分化,以评估TGR5激动剂的药效学和化合物对肠道单层的毒性。作为概念的证明,我们证明了该协议在评估有效的TGR5激动剂自然存在的胆汁酸代谢物的性质中的应用。该协议改编自Chaudhari等人。(202 1 )。


[背景和d ] GI道的肠壁是由几个不同类型的细胞,每一个特定的和,有时独有的功能的(阿莱尔等人。,2018) ...

Detection and Quantification of African Swine Fever Virus in MA-104 Cells
Author:
Date:
2021-03-20
[Abstract]  

Detection of live African swine fever virus (ASFV) has historically relied on the use of primary swine macrophages (PSM). PSM do not replicate and have to be isolated fresh from donor swine. We previously identified that a MA-104 cells (ATCC #CRL-2378.1), a commercially available cell line isolated from African green monkey (Cercopithecus aethiops) kidney epithelial cells, supports the detection of ASFV from field samples with a sensitivity comparable to that of primary swine macrophages. Collection of swine blood or lungs is time costing, which is often not readily available in most veterinary diagnostic laboratories. MA-104 cells could thus be used as substitute for primary swine macrophages to save significant lead time by avoiding the production of primary swine macrophages.

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[摘要]  [摘要]活的非洲猪瘟病毒(ASFV)的检测在历史上一直依赖于原代猪巨噬细胞(PSM)的使用。PSM不能复制,必须从供体猪中新鲜分离。我们先前发现,MA-104细胞(ATCC#CRL-2378.1)是一种从非洲绿猴(Cercopithecus aethiops )肾上皮细胞分离的商业细胞系,支持从野外样品中检测ASFV,其灵敏度可与ASFV媲美。原发性猪巨噬细胞。Ç的猪的血液或肺ollection是时间成本计算,这往往是在大多数兽医诊断实验室容易获得的。MA-104细胞因此可以用作原代猪巨噬细胞的替代品,通过避免原代猪巨噬细胞的产生来节省大量的准备时间。

[背景]非洲猪瘟病毒(ASFV)的成员,非洲猪瘟病毒科的家庭,导致野猪和家猪具有高度传染性和致命性出血热,即非洲猪瘟(ASF)。成熟的病毒颗粒(病毒粒子)直径为175-215 nm,脂质双层包裹了二十面体衣壳和180-190千碱基对的双链DNA基因组。根据宿主特征和病毒株,该病毒会引起多种症状,包括高度致死性至亚临床性(Tulman等,2009 ...

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