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EasySep™ Direct Human Total Lymphocyte Isolation Kit

Immunomagnetic negative selection from whole blood kit

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From: 425 USD

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Immunomagnetic negative selection from whole blood kit
From: 425 USD

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Overview

The EasySep™ Direct Human Total Lymphocyte Isolation Kit isolates highly purified lymphocytes directly from human whole blood by immunomagnetic negative selection. Isolated cells are untouched and available for direct use in flow cytometry, culture​,​ DNA/RNA extraction or other downstream applications.​
Advantages:
• > 99.9% RBC depletion without the need for density gradient centrifugation, sedimentation or lysis
• Fast, easy-to-use and column-free
• Up to 96% purity of isolated cells
• Isolated cells are untouched
Components:
  • EasySep™ Direct Human Total Lymphocyte Isolation Kit (Catalog #19655)
    • EasySep™ Direct Human Total Lymphocyte Isolation Cocktail, 2 x 2.5 mL
    • EasySep™ Direct RapidSpheres™, 4 x 2.5 mL
 
  • EasySep™ Direct Human Total Lymphocyte Isolation Kit for RoboSep™ (Catalog #19655RF)
    • EasySep™ Direct Human Total Lymphocyte Isolation Cocktail, 4 x 1.25 mL
    • EasySep™ Direct RapidSpheres™, 8 x 1.25 mL
    • RoboSep™ Buffer (Catalog #20104)
    • RoboSep™ Filter Tips (Catalog #20125)
Magnet Compatibility:
• EasySep™ Magnet (Catalog #18000)
• “The Big Easy” EasySep™ Magnet (Catalog #18001)
• Easy 50 EasySep™ Magnet (Catalog #18002)
• EasyEights™ EasySep™ Magnet (Catalog #18103)
• RoboSep™-S (Catalog #21000)
Subtype:
Cell Isolation Kits
Cell Type:
Total Lymphocytes
Species:
Human
Sample Source:
Whole Blood
Selection Method:
Negative
Application:
Cell Isolation
Brand:
EasySep
Area of Interest:
Immunology; HLA; Chimerism

Scientific Resources

Educational Materials

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Frequently Asked Questions

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.
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Product Applications

This product is designed for use in the following research area(s) as part of the highlighted workflow stage(s). Explore these workflows to learn more about the other products we offer to support each research area.

Data and Publications

Data

EasySep™ Direct Human Total Lymphocyte Isolation Profile

Figure 1. Typical EasySep™ Direct Human Total Lymphocyte Isolation Profile

Starting with human whole blood from normal healthy donors, the typical total lymphocyte (CD3-CD19+ and CD3+) content of the non-lysed final isolated fraction is 96.7 ± 1.5% (gated on CD45) or 95.8 ± 2.2% (not gated on CD45). In the example above, the total lymphocyte (CD3-CD19+ and CD3+) content of the lysed whole blood start sample and non-lysed final isolated fraction is 30.5% and 93.2% (gated on CD45), respectively, or 30.2% and 93.0% (not gated on CD45), respectively. The starting frequency of total lymphocytes in the non-lysed whole blood start sample above is 0.055% (data not shown).

STEMCELL TECHNOLOGIES INC.’S QUALITY MANAGEMENT SYSTEM IS CERTIFIED TO ISO 13485. PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED.