{{'Search' | translate}}
 

MCDB 131 Medium, no glutamine

MCDB 131 Medium

Company: Thermo Fisher Scientific
Catalog#: 10372019
Bio-protocol()
Company-protocol()
Other protocol()

Mimicking Angiogenesis in vitro: Three-dimensional Co-culture of Vascular Endothelial Cells and Perivascular Cells in Collagen Type I Gels
Author:
Date:
2017-04-20
[Abstract]  Angiogenesis defines the process of formation of new vascular structures form existing blood vessels, involved during development, repair processes like wound healing but also linked to pathological changes. During angiogenic processes, endothelial cells build a vascular network and recruit perivascular cells to form mature, stable vessels. Endothelial cells and perivascular cells secret and assemble a vascular basement membrane and interact via close cell-cell contacts. To mimic these processes in vitro we have developed a versatile three-dimensional culture system where perivascular cells (PVC) are co-cultured with human umbilical cord vascular endothelial cells (HUVEC) in a collagen type I gel. This co-culture system can be used to determine biochemical and cellular processes ... [摘要]  血管发生定义了形成现有血管的新血管结构的形成过程,涉及发育过程中的修复过程,如伤口愈合,还与病理变化有关。 在血管生成过程中,内皮细胞建立血管网络并招募血管周围细胞以形成成熟稳定的血管。 内皮细胞和血管周围细胞秘密并组装血管基底膜,并通过细胞间接触进行相互作用。 为了体外模拟这些过程,我们开发了一种通用的三维培养系统,其中血管周围细胞(PVC)与胶原I型凝胶中的人脐带血管内皮细胞(HUVEC)共培养。 这种共培养系统可用于通过广泛的分析选项来确定新生血管生成事件期间的生物化学和细胞过程。
【背景】内皮细胞和血管周围细胞之间的协调相互作用对于根据给定组织内的局部需要形成稳定的血管网是非常重要的。多个分子组分有助于相互作用,但仍然很少了解。需要各种生长因子来吸引内皮细胞到低氧浓度的位点,并建立新的血管,然后被血管周围细胞覆盖。两种细胞类型相互作用以分泌特定的细胞外基质并稳定新形成的血管。在过去已经建立了多个测定法来分析二维基质胶底物上的血管细胞相互作用和血管样网络形成,但是这些测定在三维细胞内提供关于血管内血管周围细胞相互作用和血管基底膜形成的初始步骤的信息是有限的维度微环境。此外,缺乏适合于培养实验的良好表征的血管周围细胞。
我们以前分离出具有血管周围特征的细胞,因为它们表达周细胞特异性标记,产生和分泌细胞外基质蛋白并在体内刺激血管生成过程(Brachvogel等,2005和2007)。这些细胞用于与人脐静脉内皮细胞建立共培养系统,并研究三维微环境中两种细胞类型相互作用后新生血管发生的关键步骤(Pitzler等,2016; ...

Neurosphere Co-culture Assay
Author:
Date:
2016-08-05
[Abstract]  The hippocampal niche is one of two areas in the brain where stem cells reside. In this neurogenic niche, stem cells can be found in close proximity to astrocytes and in contact with microvessels consisting of pericytes and endothelial cells. To study the regulatory interplay of this complex niche network in a simplified in vitro model, we established a co-culture system. We investigate the formation of neurosphere under different co-culture conditions by using primary niche cells. Here, we describe the isolation procedure for primary niche cells culture of astrocytes, endothelial cells and pericytes/smooth muscle cells from mouse brain. These niche cells are co-cultured (by hanging inserts) with freshly isolated stem and precursor cells from the adult hippocampus to study the ... [摘要]  真菌形态发生需要细胞壁的修饰和可塑性,这意味着其组分(包括壳多糖和葡聚糖)的合成和重塑。因此几丁质酶和葡聚糖酶活性对于细胞壁生物发生和细胞分裂是至关重要的。几丁质酶活性的定量可能有助于鉴定可能负面影响一些丝状真菌如产生细胞内和分泌型几丁质酶的尖孢镰刀菌的生长和形态发生的结构缺陷。基于它们对壳多糖底物的酶作用将壳聚糖分解酶分类。内酯酶被定义为催化几丁质链中内部点的随机裂解的酶。外切球蛋白酶催化乙酰壳寡糖或N-乙酰葡糖胺从几丁质的非还原端逐步释放,因此分别称为壳聚糖酶和β-N-乙酰氨基葡糖苷酶。在这里,我们描述了一种简单的方法来轻易地纯化几丁质酶,以便比较不同的F的内切几丁质酶活性和外切几丁质酶活性。尖孢镰孢菌株。该方案可适用于任何真菌物种。...

Comments