| Isolation of Murine Primary Aortic Smooth Muscle Cells
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Author:
Date:
2021-02-05
[Abstract] Vascular smooth muscle cells (VSMCs) have been cultured for decades to study the role of these cells in cardiovascular disorders. The most common source of VSMCs is the rat aorta. Here we show the adaptation of this method to isolate and culture mouse aortic VSMCs. The advantage of this method is that there are many more transgenic mouse lines available compared to rats. The protocol consists of the isolation of the aorta, the liberation of vascular cells by the action of collagenase, culturing of VSCMs, and analyzing filamentous actin and alpha smooth muscle actin by fluorescence microscopy. VSCMs can be further used to study mechanisms underlying cardiovascular diseases.
Graphic abstract
Figure 1. Working steps ...
[摘要] [摘要]血管平滑肌细胞（VSMC）已培养了数十年，以研究这些细胞在心血管疾病中的作用。VSMC的最常见来源是大鼠主动脉。在这里，我们展示了此方法对分离和培养小鼠主动脉VSMC的适应性。这种方法的优点是，与大鼠相比，有更多的转基因小鼠系可用。该方案包括主动脉的分离，通过胶原酶的作用释放血管细胞，培养VSCM ，通过荧光显微镜分析丝状肌动蛋白和α平滑肌肌动蛋白。VSCM可进一步用于研究心血管疾病的潜在机制。
图形摘要：
˚F igure 1.工作步骤
关键词：血管平滑肌细胞鼠主动脉提取分离培养
[背景]血管壁细胞（壁细胞）在多种疾病的调节中起着至关重要的作用，从高血压（Rodríguez-Vita等，2005a）和动脉粥样硬化（Rodríguez-Vita等，2008）到癌症（ Wong等人，2020年），甚至最近还有COVID-19 （He等人，2020年）。毛细血管大部分被周细胞覆盖，而较大的血管在血管壁中含有VSCM。壁细胞通过血管收缩和血管舒张来控制血流。这样，吨哎是在几种药物靶，其降低血压（圣保罗等人，2020） ...
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| Differentiation of Human Induced Pluripotent Stem Cells (iPS Cells) and Embryonic Stem Cells (ES Cells) into Dendritic Cell (DC) Subsets
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Author:
Date:
2017-08-05
[Abstract] Induced pluripotent stem cells (iPS cells) are engineered stem cells, which exhibit properties very similar to embryonic stem cells (ES cells; Takahashi and Yamanaka, 2016). Both iPS cells and ES cells have an extraordinary self-renewal capacity and can differentiate into all cell types of our body, including hematopoietic stem/progenitor cells and dendritic cells (DC) derived thereof. This makes iPS cells particularly well suited for studying molecular mechanisms of diseases, drug discovery and regenerative therapy (Grskovic et al., 2011; Bellin et al., 2012; Robinton and Daley, 2012).
DC are the major antigen presenting cells of the immune system and thus they are key players in modulating and directing immune responses (Merad et al., 2013). DC ...
[摘要] 诱导的多能干细胞（iPS细胞）是工程干细胞，其表现出与胚胎干细胞（ES细胞，Takahashi和Yamanaka，2016）非常相似的性质。 iPS细胞和ES细胞都具有非凡的自我更新能力，可以分化成我们身体的所有细胞类型，包括造血干细胞/祖细胞和源自其的树突状细胞（DC）。这使得iPS细胞特别适用于研究疾病，药物发现和再生治疗的分子机制（Grskovic等人，2011; Bellin等人，2012; Robinton和Daley，2012）。
＆NBSP; DC是免疫系统的主要抗原呈递细胞，因此它们是调节和引导免疫应答的关键参与者（Merad等人，2013）。 DC巡逻外周和界面组织（例如，肺，肠和皮肤）以检测入侵的病原体，并且在激活时，它们迁移到淋巴结以激活和引发淋巴细胞。
＆NBSP; DC包含具有功能专门子集的表型异质家族（Schlitzer和Ginhoux，2014）。通常，经典DC（cDC）和浆细胞样DC（pDC）是分别表现出典型的和等离子体细胞样的DC形态。 cDC识别许多病原体并在激活后分泌促炎细胞因子，而pDC专门检测细胞内病原体并分泌I型干扰素（Merad等，2013; Schlitzer和Ginhoux，2014）。在被称为CD141 Clec9a + cDC1和CD1c + ...
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| In vitro and in vivo Limiting Dilution Assay for Colorectal Cancer
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Author:
Date:
2015-11-20
[Abstract] The in vitro limiting dilution assay is used to determine the colorectal cancer initiating cell (CC-IC) frequency of a CC-IC enriched suspension culture, grown in growth factor enriched serum free media. The in vivo limiting dilution assay is used to determine the colorectal cancer initiating cell frequency of a primary colorectal cancer sample or an established suspension cell line using immunocompromised murine xenograft models. In vitro and in vivo limiting dilution assays (LDAs) can be used to determine the effect of a specific treatment or genetic knockdown strategy on the initiating cell frequency of a population of CC-ICs or colorectal cancer sample, respectively.
[摘要] 体外极限稀释测定法用于测定在富含生长因子的无血清培养基中生长的CC-IC富集悬浮培养物的结肠直肠癌起始细胞（CC-IC）频率。 体内限制性稀释测定法用于使用免疫受损的鼠异种移植物模型确定原发性结肠直肠癌样品或建立的悬浮细胞系的结肠直肠癌起始细胞频率。 可以使用体外和体内有限稀释测定法（LDAs）来确定特定处理或遗传击倒策略对CC- IC或结肠直肠癌样品。
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