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LiberaseTM Research Grade

LiberaseTM Research Grade

公司名称: Roche Diagnostics
产品编号: 05401119001
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Evaluation of Cross-presentation in Bone Marrow-derived Dendritic Cells in vitro and Splenic Dendritic Cells ex vivo Using Antigen-coated Beads
Author:
Date:
2016-11-20
[Abstract]  Antigen presentation by MHC class I molecules, also referred to as cross-presentation, elicits cytotoxic immune responses. In particular, dendritic cells (DC) are the most proficient cross-presenting cells, since they have developed unique means to control phagocytic and degradative pathways.

This protocol allows the evaluation of antigen cross-presentation both in vitro (by using bone marrow-derived DC) and ex vivo (by purifying CD8+ DC from spleen after incorporation of particulate antigen) using ovalbumin (OVA)-coupled particles. Cross-presentation ...
[摘要]  通过MHC I类分子的抗原呈递,也称为交叉呈递,引起细胞毒性免疫应答。特别地,树突细胞(DC)是最熟练的交叉呈递细胞,因为它们已经开发了控制吞噬和降解途径的独特手段。 <此协议允许在体外(通过使用骨髓衍生的DC)和离体(通过纯化CD8 + )评价抗原交叉呈递。 (OVA)偶联的颗粒后,来自脾脏的DC/DC结合颗粒抗原)。通过三种不同的读数测量交叉呈递效率:B3Z杂交瘤T细胞系(Karttunen等人,1992)和抗原特异性CD8 + T细胞的刺激OT-I)(Kurts等人,1996),在用羧基荧光素琥珀酰亚胺酯(CFSE)标记它们之后分析CD69表达或OT-I增殖的OT-I活化。通过使用这种方法,我们可以最近显示DCs能够在TLR4结合时瞬时增加交叉表达效率(Alloatti等人,2015)。 [背景] 在小鼠中,抗原呈递细胞(APC)能够吸收外源抗原以加工它们,并将源自这些外源抗原的肽加载到主要组织相容性复合体(MHC)I类分子上。肽-MHC I复合物随后被转运到质膜,在那里它们可以呈递到CD8 + T细胞,从而促进T细胞活化,这被称为交叉呈递(Joffre等人, al 。,2012)。在不同的APC中,树突状细胞(DC)在交叉呈递方面表现优异,并且包含表达XCR1标记的不同亚群,其已经显示非常有效地交叉呈递抗原(即CD8 + 来自脾的DC和来自皮肤和肺的CD103 ...

Coculture between hMADS and Mouse Adult CM
Author:
Date:
2014-07-20
[Abstract]  Heart failure occurring after acute myocardial infarction (MI) is among the main causes of death in western countries. Cell therapies, particularly those based on mesenchymal stem cells (MSC), represent one of the most promising approaches to repair damaged heart tissues. Several reports have provided evidences that injection of mesenchymal stem cells improved heart function following myocardial infarction (Shake et al., 2002; Zimmet and Hare, 2005; Zeng et al., 2007). Nevertheless, the mechanism(s) by which MSC exert their therapeutic action is far from being understood, ... [摘要]  急性心肌梗死(MI)后发生的心力衰竭是西方国家死亡的主要原因。细胞疗法,特别是基于间充质干细胞(MSC)的那些,代表了修复受损心脏组织的最有希望的方法之一。几个报道提供了证据,注射间充质干细胞改善了心肌梗塞后的心脏功能(Shake等人,2002; Zimmet和Hare,2005; Zeng等人, 2007)。然而,MSC发挥其治疗作用的机制远未被理解,并且尤其需要在该领域中的进一步知识以优化当前心脏细胞治疗的效率。为了评估由MSC在体外形成的再生机制,我们开发了上述方法,其预期模拟梗塞心脏的典型微环境。该方法包括处于不良状态的小鼠终末分化心肌细胞与本文用作MSC模型的人多能脂肪来源干细胞(hMADS细胞)之间的物种错配共培养物。

Bronchoalveolar Lavage and Lung Tissue Digestion
Author:
Date:
2013-08-20
[Abstract]  Bronchoalveolar lavage (BAL) is a simple but valuable and typically performed technique commonly used for studying the pathogenesis of lung diseases such as asthma and COPD. Cell counts can be combined with new methods for examining inflammatory responses, such as ELISA, Flow cytometric analysis, immunohistochemistry, quantitative polymerase chain reaction, and HPLC to assess cellular expression for inflammatory cytokines and growth factor. Here we describe a basic procedure to collect BAL fluid and digest lung tissue for assessing a number of pulmonary components.
[摘要]  支气管肺泡灌洗(BAL)是一种简单但有价值且通常执行的技术,通常用于研究肺病如哮喘和COPD的发病机制。 细胞计数可以与用于检查炎症反应的新方法组合,例如ELISA,流式细胞术分析,免疫组织化学,定量聚合酶链反应和HPLC以评估炎症细胞因子和生长因子的细胞表达。 在这里,我们描述了收集BAL液和消化肺组织以评估肺部成分数量的基本程序

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