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EasySep™ Direct人Naïve B细胞分选试剂盒

直接从全血中分离未标记的初始 B 细胞的免疫磁珠分离

只有 %1
¥8,338.00

产品号 #(选择产品)

产品号 #19264_C

全血免疫磁珠负选试剂盒

产品优势

  • > 99.9%的红细胞(RBC)去除率,无需密度梯度离心、沉降或裂解
  • 操作简单、快捷,且无需分离柱
  • 分选获得的细胞纯度高达95%
  • 分选得到的细胞不带标记

产品组分包括

  • EasySep™ Direct人Naïve B细胞分选试剂盒(产品号#19264)
    • EasySep™ Direct人Naïve B细胞分选抗体混合物,2 x 2.5 mL
    • EasySep™ Direct RapidSpheres™磁珠,4 x 2.5 mL
New look, same high quality and support! You may notice that your instrument or reagent packaging looks slightly different from images displayed on the website, or from previous orders. We are updating our look but rest assured, the products themselves and how you should use them have not changed. Learn more

总览

使用 EasySep™ 直接人初始 B 细胞分离试剂盒,可通过免疫磁性负选法直接从人全血样本中轻松高效地分离高纯度的初始 B 细胞。EasySep™ 技术在已发表的研究中被广泛应用超过 20 年,结合了单克隆抗体的特异性与无柱磁分选系统的简便性。

在此 EasySep™ 负选步骤中,非目的细胞通过抗体复合物与 EasySep™ Direct RapidSpheres™ 磁性颗粒进行标记。以下标志物阳性的细胞将被去除:CD2、CD3、CD15、CD16、CD27、CD36、CD43、CD56、CD66b 和 GlyA。经 EasySep™ 磁极分离后,未标记的目的初始 B 细胞被收集到新试管中。磁性分离完成后,目的初始 B 细胞可直接用于流式细胞术、培养或 DNA/RNA 提取等下游应用。

了解更多关于 EasySep™ 免疫磁性技术的工作原理。探索更多产品,包括细胞表征、低温保存及其他相关产品,以优化您的实验流程。

 

磁极兼容性
• EasySep™磁极(产品号 #18000)
• “The Big Easy” EasySep™磁极(产品号 #18001)
• Easy 50 EasySep™磁极(产品号 #18002)
• EasyEights™ EasySep™磁极(产品号 #18103)
 
分类
细胞分选试剂盒
 
细胞类型
B 细胞
 
种属

 
样本来源
全血
 
分选方法
负选
 
应用
细胞分选
 
品牌
EasySep
 
研究领域
免疫
 

实验数据

Starting with human whole blood from normal healthy donors, the typical naïve B cell (CD19+CD27-) content of the non-lysed final isolated fraction is 918 ± 36% (gated on CD45) or 824 ± 126% (not gated on CD45)

Figure 1. Typical EasySep™ Direct Human Naïve B Cell Isolation Profile

Starting with human whole blood from normal healthy donors, the typical naïve B cell (CD19+CD27-) content of the non-lysed final isolated fraction is 91.8 ± 3.6% (gated on CD45) or 82.4 ± 12.6% (not gated on CD45). In the above example, the naïve B cell (CD19+CD27-) content of the lysed whole blood start sample and non-lysed final isolated fraction is 5.1% and 91.5% (gated on CD45), respectively, or 5.1% and 90.0% (not gated on CD45), respectively. The starting frequency of naïve B cells in the non-lysed whole blood start sample above is 0.009% (data not shown).

产品说明书及文档

请在《产品说明书》中查找相关支持信息和使用说明,或浏览下方更多实验方案。

Document Type
Product Name
Catalog #
Lot #
Language
Catalog #
19264
Lot #
All
Language
English
Document Type
Safety Data Sheet 1
Catalog #
19264
Lot #
All
Language
English
Document Type
Safety Data Sheet 2
Catalog #
19264
Lot #
All
Language
English

应用领域

本产品专为以下研究领域设计,适用于工作流程中的高亮阶段。探索这些工作流程,了解更多我们为各研究领域提供的其他配套产品。

相关材料与文献

技术资料 (12)

常见问题

Can EasySep™ be used for either positive or negative selection?

Yes. The EasySep™ kits use either a negative selection approach by targeting and removing unwanted cells or a positive selection approach targeting desired cells. Depletion kits are also available for the removal of cells with a specific undesired marker (e.g. GlyA).

How does the separation work?

Magnetic particles are crosslinked to cells using Tetrameric Antibody Complexes (TAC). When placed in the EasySep™ Magnet, labeled cells migrate to the wall of the tube. The unlabeled cells are then poured off into a separate fraction.

Which columns do I use?

The EasySep™ procedure is column-free. That's right - no columns!

How can I analyze the purity of my enriched sample?

The Product Information Sheet provided with each EasySep™ kit contains detailed staining information.

Can EasySep™ separations be automated?

Yes. RoboSep™, the fully automated cell separator, automates all EasySep™ labeling and cell separation steps.

Can EasySep™ be used to isolate rare cells?

Yes. We recommend a cell concentration of 2x108 cells/mL and a minimum working volume of 100 µL. Samples containing 2x107 cells or fewer should be suspended in 100 µL of buffer.

Are the EasySep™ magnetic particles FACS-compatible?

Yes, the EasySep™ particles are flow cytometry-compatible, as they are very uniform in size and about 5000X smaller than other commercially available magnetic beads used with column-free systems.

Can the EasySep™ magnetic particles be removed after enrichment?

No, but due to the small size of these particles, they will not interfere with downstream applications.

Can I alter the separation time in the magnet?

Yes; however, this may impact the kit's performance. The provided EasySep™ protocols have already been optimized to balance purity, recovery and time spent on the isolation.

For positive selection, can I perform more than 3 separations to increase purity?

Yes, the purity of targeted cells will increase with additional rounds of separations; however, cell recovery will decrease.

How does the binding of the EasySep™ magnetic particle affect the cells? is the function of positively selected cells altered by the bound particles?

Hundreds of publications have used cells selected with EasySep™ positive selection kits for functional studies. Our in-house experiments also confirm that selected cells are not functionally altered by the EasySep™ magnetic particles.

If particle binding is a key concern, we offer two options for negative selection. The EasySep™ negative selection kits can isolate untouched cells with comparable purities, while RosetteSep™ can isolate untouched cells directly from whole blood without using particles or magnets.

文献 (1)

BCR-associated factors driving chronic lymphocytic leukemia cells proliferation ex vivo. C. Schleiss et al. Scientific reports 2019 jan

Abstract

A chronic antigenic stimulation is believed to sustain the leukemogenic development of chronic lymphocytic leukemia (CLL) and most of lymphoproliferative malignancies developed from mature B cells. Reproducing a proliferative stimulation ex vivo is critical to decipher the mechanisms of leukemogenesis in these malignancies. However, functional studies of CLL cells remains limited since current ex vivo B cell receptor (BCR) stimulation protocols are not sufficient to induce the proliferation of these cells, pointing out the need of mandatory BCR co-factors in this process. Here, we investigated benefits of several BCR co-stimulatory molecules (IL-2, IL-4, IL-15, IL-21 and CD40 ligand) in multiple culture conditions. Our results demonstrated that BCR engagement (anti-IgM ligation) concomitant to CD40 ligand, IL-4 and IL-21 stimulation allowed CLL cells proliferation ex vivo. In addition, we established a proliferative advantage for ZAP70 positive CLL cells, associated to an increased phosphorylation of ZAP70/SYK and STAT6. Moreover, the use of a tri-dimensional matrix of methylcellulose and the addition of TLR9 agonists further increased this proliferative response. This ex vivo model of BCR stimulation with T-derived cytokines is a relevant and efficient model for functional studies of CLL as well as lymphoproliferative malignancies.

更多信息

更多信息
物种 人类
Magnet Compatibility • EasySep™ Magnet (Catalog #18000) • “The Big Easy” EasySep™ Magnet (Catalog #18001) • Easy 50 EasySep™ Magnet (Catalog #18002) • EasyEights™ EasySep™ Magnet (Catalog #18103)
样本来源 全血
Selection Method Negative
标记抗体
质量保证:

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