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Recombinant Human EGF Protein, CF

重组人EGF蛋白,CF

公司名称: R&D Systems
产品编号: 236-EG
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A Murine Orthotopic Allograft to Model Prostate Cancer Growth and Metastasis
Author:
Date:
2017-02-20
[Abstract]  Prostate cancer is one of the most common cancers in men in the United States. Comprehensive understanding of the biology contributing to prostate cancer will have important clinical implications. Animal models have greatly impacted our knowledge of disease and will continue to be a valuable resource for future studies. Herein, we describe a detailed protocol for the orthotopic engraftment of a murine prostate cancer cell line (Myc-CaP) into the anterior prostate of an immune competent mouse. [摘要]  前列腺癌是美国男性最常见的癌症之一。对前列腺癌生物学的全面了解将具有重要的临床意义。动物模型大大影响了我们对疾病的了解,并将继续成为未来研究的宝贵资源。在这里,我们描述了将一种鼠前列腺癌细胞系(Myc-CaP)原位植入免疫能力小鼠前列腺的详细方案。

背景 由于转移的癌症的一小部分,前列腺癌是男性癌症死亡的主要原因。然而,驱动局部肿瘤发展和进展为转移性疾病的遗传和分子因素仍未完全了解。基因工程小鼠(GEM)模型和前列腺癌的异种移植模型都有助于我们对前列腺癌遗传学的了解(Ittmann等人,2013; Park等人,2010)。通过前列腺特异性转基因过表达如Hi-Myc小鼠(Ellwood-Yen等人,2003)或通过前列腺特异性缺失例如在Pten中的遗传操作, - 小鼠(Wang等人,2003)是有利的,因为它模拟了免疫能力小鼠的器官微环境中的肿瘤发展和进展。转移性前列腺癌的发展在这些GEM模型中是可变的,其中一些低频率, 其他模型如TRAMP(转基因腺癌​​小鼠前列腺)(reenberg等,1995)和Hi-Myc / Pten < -=""> (Hubbard等人,2016)。尽管他们对前列腺癌研究有很大的实用价值,但进一步的遗传操纵GEM模型是困难,耗时和昂贵的。为了克服这些局限性,研究人员依赖于人类细胞系的皮下和原位异种移植物。细胞系可以以多种方式在体外进行遗传操作。虽然皮下异种移植物由于其易于注射和监测而是有利的,但原位异种移植物更好地概括了可能影响药物敏感性的局部肿瘤微环境(Wilmann等人,1992; ...

In vitro Migration Assays for Neural Stem Cells, Intermediate Neurogenic Progenitors and Immature Neurons
Author:
Date:
2015-01-05
[Abstract]  In the vertebrate central nervous system (CNS), different neural precursor populations such as neural stem cells (NSCs), intermediate neurogenic progenitors (INPs) and immature neurons have to migrate from their places of birth to their location of function. Coordinated migration is mediated by direct cell-cell interactions and by extracellular matrix components, chemoattractants as well as repellents. The migration potential of such populations as well as the responsiveness to chemoattractive compounds can be addressed in isolated cells using in vitro migration assays. Here we ... [摘要]  在脊椎动物中枢神经系统(CNS)中,不同的神经前体细胞如神经干细胞(NSCs),中间神经源性祖细胞(INPs)和不成熟的神经元必须从他们的出生地迁移到它们的功能位置。配位迁移通过直接的细胞 - 细胞相互作用和细胞外基质组分,化学引诱物以及驱避剂介导。这些群体的迁移潜力以及对化学吸引化合物的反应性可以使用体外迁移测定在分离的细胞中解决。在这里我们描述两个迁移测定,基质胶迁移测定和博伊登室迁移测定,其允许在确定的条件下的神经迁移的体外评估(Ladewig,Koch和Brüstle,2014)。基质胶基质是可溶性基底膜提取物。基质胶基质的主要成分是胶原,层粘连蛋白和蛋白聚糖,它们为迁移细胞提供了底物。在基质胶试验中,可以使用相差显微镜分析迁移。 Boyden室测定法(Richards和McCullough,1984)基于微化学趋化室,其由通过具有限定孔径的膜分开的两个室组成。细胞可以接种在上室中并允许通过孔迁移到下室,其中加载了潜在的趋化剂。可以在固定和免疫组织化学染色后分析细胞迁移。原则上,所描述的方案应该适用于其它细胞群体,例如内皮细胞或癌细胞,使用适合于特定细胞类型的个体需要的条件。

Mouse ESC Differentiation to Nkx2.1+ Lung and Thyroid Progenitors
Author:
Date:
2012-11-20
[Abstract]  The de novo derivation of lung progenitors from pluripotent stem cells provides the opportunity to model early lung development in vitro and allows easy access to cells for tissue engineering or basic cell biology studies. This detailed protocol allows the generation of lung and thyroid progenitors from mouse embryonic stem cell (ESC) or induced pluripotent stem cell (iPSC) lines. When used together with a published Nkx2.1-GFP knock-in ESC line, the protocol allows tracking and purification of lung and thyroid progenitors by sorting on the GFP reporter based on the induction ... [摘要]  该实验方案的中文版正在准备中...

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