| Mechanical Tissue Compression and Whole-mount Imaging at Single Cell Resolution for Developing Murine Epididymal Tubules
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Author:
Date:
2020-08-05
[Abstract] Cells inside the body are subjected to various mechanical stress, such as stretch or compression provided by surrounding cells, shear stresses by blood or lymph flows, and normal stresses by luminal liquids. Force loading to the biological tissues is a fundamental method to better understand cellular responses to such mechanical stimuli. There have been many studies on compression or stretch experiments that target culture cells attached to a flexible extensible material including polydimethylsiloxane (PDMS); however, the know-how of those targeting to tissues is still incomplete. Here we present the protocol for mechanical tissue compression and image-based analysis by focusing on developing murine epididymis as an example. We show a series of steps including tissue dissection from ...
[摘要] [摘要 ] 细胞我n侧主体经受各种机械应力，例如通过管腔液体拉伸或通过血液或淋巴周围细胞的剪切应力提供的压缩流，并且正常的应力。力加载到生物组织上是一种基本方法，可以更好地了解细胞对此类机械刺激的反应。关于压缩或拉伸实验，已有许多研究针对以附着于包括聚二甲基硅氧烷（PDMS）在内的柔性可扩展材料的培养细胞为目标的研究。然而，知道的-如何与靶向组织仍然是不完整的。 在这里，我们以开发小鼠附睾为例，介绍用于机械组织压缩和基于图像的分析的协议。我们显示了一系列步骤，包括从鼠胚胎中解剖组织，使用手动设备进行基于水凝胶的压缩方法以及无损容积组织成像。该协议对于定量和探索组织水平的生物机械反应系统很有用。
[背景 ] 细胞可以对机械刺激作出反应通过细胞内的生物化学信号传导途径。已知这种细胞机械反应在诸如胚胎发育，再生，组织稳态和癌症转移的各种生物过程中起着基本作用（Mammoto 等，2013； Humphrey 等，2014； Vining和Mooney，2017）。最近有关向细胞外部施加力的实验表明细胞如何对给定的机械刺激作出反应。例如，已显示出拉伸或压缩附着在诸如聚二甲基硅氧烷（PDMS）之类的柔性有机硅基材上的细胞单层会触发机械敏感离子通道蛋白Piezo1，从而引起各种细胞行为，例如细胞分裂和挤压，从而导致体内稳态的细胞数量增加。组织（Eisenhoffer ...
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| A 3D Culture System of Human Immortalized Myometrial Cells
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Author:
Date:
2016-10-20
[Abstract] Myometrium forms the middle layer of the uterus and is mainly composed of the smooth muscle cells. The cells in vitro are usually grown in a single layer (2-dimensional; 2D) format, whereas in vivo cells are structured in an extracellular matrix scaffolding that allows the cells to communicate and respond to environmental cues. We have developed human myometrium and leiomyoma 3-dimensional (3D) culture, wherein the cells retain their molecular characteristics and respond to environmental cues (Malik and Catherino, 2012; Malik et al., 2014).
[摘要] 子宫肌层形成子宫的中间层，主要由平滑肌细胞组成。细胞在体外通常生长在单层（2维; 2D）格式中，而体内细胞在细胞外基质支架中结构化，其允许细胞沟通和响应环境线索。我们已经开发了人子宫肌瘤和平滑肌瘤3维（3D）培养物，其中细胞保留其分子特征并响应环境线索（Malik和Catherino，2012; Malik等人，2014）。 br /> [背景] 在过去十年中，随着更多实验室从使用人工2D格式的细胞培养转移到3D细胞培养模型系统，观察到一定的转变，其中细胞生长在允许它们附着并获得更生理结构的基质中。该模型系统为细胞提供更自然的分化状态，并且培养的细胞在体内形成组织样环境。这是一个详细的协议为myometrium 3D细胞培养生长胶原-1矩阵，修改从Malik和Catherino（2012年）。
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