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Anti-Biotin MicroBeads

Anti-Biotin MicroBeads

Company: Miltenyi Biotec
Catalog#: 130-090-485
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Lentiviral Barcode Labeling and Transplantation of Fetal Liver Hematopoietic Stem and Progenitor Cells
Author:
Date:
2017-04-20
[Abstract]  Cellular barcoding enables the dissection of clonal dynamics in heterogeneous cell populations through single cell lineage tracing. The labeling of hematopoietic stem and progenitor cells (HSPCs) with unique and heritable DNA barcodes, makes it possible to resolve donor cell heterogeneity in terms of differentiation potential and lineage bias at the single cell level, through subsequent transplantation and high-throughput sequencing. Furthermore, cellular barcoding allows for bona fide hematopoietic stem cells (HSCs) to be defined based on functional rather than immunophenotypic parameters.

This protocol describes the work flow of lentiviral cellular barcoding, tracking 14.5 days post coitum (d.p.c.) fetal liver (FL) Lineage-Sca+cKit+ (LSK) HSPCs following ...
[摘要]  细胞条形码可以通过单细胞谱系追踪来分离异种细胞群体中的克隆动力学。通过独特和可遗传的DNA条形码对造血干细胞和祖细胞(HSPC)进行标记,可以通过随后的移植和高通量测序,在单细胞水平上分化供体细胞异质性,分化潜力和谱系偏倚。此外,细胞条形码可以根据功能而不是免疫表型参数定义真正的造血干细胞(HSC)。
 该协议描述了慢病毒细胞条形码的工作流程,追踪1450天后(dpc)胎肝(FL)Lineage-Sca+ cKit + (LSK)HSPC经过长期重建(图1)(Kristiansen等人,2016),但可以适应于选择的细胞类型或时间框架。


图1.实验工作流程摘要(Naik 等人,2013)

最初建立了细胞条形码技术来解决在体内移植造血细胞后的单细胞动力学,并且近年来在移植中对血细胞群体中功能​​异质性的认识有显着贡献(Schepers ,2008; Gerrits等人,2010; Lu等人,2011; Naik等人 ,2013; Verovskaya等人,2013; ...

In vitro Detection of Neutrophil Traps and Post-attack Cell Wall Changes in Candida Hyphae
Author:
Date:
2017-04-05
[Abstract]  In this protocol we describe how to visualize neutrophil extracellular traps (NETs) and fungal cell wall changes in the context of the coculture of mouse neutrophils with fungal hyphae of Candida albicans. These protocols are easily adjusted to test a wide array of hypotheses related to the impact of immune cells on fungi and the cell wall, making them promising tools for exploring host-pathogen interactions during fungal infection. [摘要]  在本协议中,我们描述了如何在小鼠嗜中性粒细胞与真菌白色念珠菌的真菌菌丝共培养的背景下观察嗜中性粒细胞胞外捕获物(NETs)和真菌细胞壁变化。 这些方案很容易调整,以测试与免疫细胞对真菌和细胞壁的影响有关的各种假设,使其成为探索真菌感染期间宿主病原体相互作用的有前景的工具。

C。白色念珠菌是一种多态性机会性酵母,嗜中性粒细胞是免疫细胞,对于这种和其他真菌病原体的防御至关重要(Brown等,2012; Lionakis和Netea,2013)。 NETs是可以针对病原体部署的潜在防御机制,并且已经表明它们优先针对诸如C的微生物细胞部署。白念珠菌菌丝太大而不能吞噬(Urban et al。,2006; Bruns等人,2010; Branzk等人,,2014; Rohm等人,2014)。 NET已经显示含有许多组分,包括髓过氧化物酶,胞外DNA和瓜氨酸化的组蛋白(Amulic等人,2012; ...

Isolation of THY1+ Undifferentiated Spermatogonia from Mouse Postnatal Testes Using Magnetic-activated Cell Sorting (MACS)
Author:
Date:
2016-12-20
[Abstract]  In mammals, homeostasis of many tissues rely on a subpopulation of cells, referred to as stem cells, to sustain an appropriate number of undifferentiated and differentiated cells. Spermatogonial stem cells (SSCs) provide the fundamental cellular source for spermatogenesis and are responsible for the lifelong maintenance of the germline pool in testes throughout the reproductive lifespan of males. To gain insight into germline stem cell biology and develop strategies for infertility treatment, several germ cell isolation methods have been reported in order to acquire good quality and quantity of undifferentiated spermatogonia. Among them, magnetic-activated cell sorting (MACS) is an efficient cell isolation method that requires less time and less initial cell numbers to obtain an enriched ... [摘要]  在哺乳动物中,许多组织的体内平衡依赖于称为干细胞的细胞亚群,以维持适量的未分化细胞和分化细胞。精原细胞干细胞(SSC)为精子发生提供了基本的细胞来源,并且负责终生维持雄性生殖期间睾丸中的种系池。为了获得对种系干细胞生物学的了解并制定不孕症治疗策略,已经报道了几种生殖细胞分离方法,以获得良好质量和数量的未分化精原细胞。其中,磁激活细胞分选(MACS)是一种有效的细胞分离方法,其需要较少的时间和较少的初始细胞数以使用抗原 - 抗体反应来获得富集的细胞群体。胸腺细胞抗原1(THY1,CD90.2)被认为是小鼠新生儿和成年睾丸中未分化精原细胞的表面标志物。在这里,我们描述了一个用于分离来自小鼠睾丸的一周龄THY1 + 细胞和四周龄THY1 + 细胞的方案。分离过程包括三个步骤:睾丸收集和单细胞悬浮,使用生物素缀合的抗THY1抗体的细胞标记和磁性细胞分离。注意,这种隔离方案应在五小时内完成,以最大限度地提高活细胞的质量和数量。

背景 在几个成人组织中观察到活性和静止干细胞的共存。静止,自我更新和分化之间的充分平衡对于维持适当数量的未分化干细胞是必要的,并且避免过早的干细胞耗尽许多组织的体内平衡(Tseng等人,2015; Wabik和Jones,2015; ...

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