EasySep™ Direct Human Total Lymphocyte Isolation Kit

Immunomagnetic negative selection from whole blood kit
Catalog #
19655_C
Immunomagnetic negative selection from whole blood kit
From: 476 USD
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Required Products
  1. EasySep™ Magnet
    EasySep™ Magnet

    Magnet for column-free immunomagnetic separation

  2. D-PBS Without Ca++ and Mg++
    D-PBS (Without Ca++ and Mg++)

    Dulbecco’s phosphate-buffered saline without calcium and magnesium

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, 2 x 2.5 mL
    • EasySep™ Direct RapidSpheres™, 4 x 2.5 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
Lymphocytes
Species
Human
Sample Source
Whole Blood
Selection Method
Negative
Application
Cell Isolation
Brand
EasySep
Area of Interest
Chimerism, HLA, Immunology

Scientific Resources

Product Documentation

Document Type Product Name Catalog # Lot # Language
Document Type
Product Information Sheet
Product Name
EasySep™ Direct Human Total Lymphocyte Isolation Kit
Catalog #
19655
Lot #
Purchase date 2020-09-28 or later
Language
English
Document Type
Product Information Sheet
Product Name
EasySep™ Direct Human Total Lymphocyte Isolation Kit for RoboSep™
Catalog #
19655RF
Lot #
Purchase date 2020-09-28 or later
Language
English
Document Type
Safety Data Sheet 1
Product Name
EasySep™ Direct Human Total Lymphocyte Isolation Kit
Catalog #
19655
Lot #
All
Language
English
Document Type
Safety Data Sheet 2
Product Name
EasySep™ Direct Human Total Lymphocyte Isolation Kit
Catalog #
19655
Lot #
All
Language
English

Educational Materials (18)

Brochure
EasySep™ Cell Separation Technology
Brochure
EasySep™ Direct: Cell Isolation from Whole Blood in 20 Minutes
Brochure
Cell Separation Products for HLA Analysis
Technical Bulletin
Cell Separation Solutions for the Flow Cytometric Crossmatch Assay
Wallchart
Frequencies of Cell Types in Human Peripheral Blood
Wallchart
Human Immune Cytokines
Video
Cell Isolation Directly from Whole Blood without RBC Lysis or Centrifugation: EasySep™ Direct
1:44
Cell Isolation Directly from Whole Blood without RBC Lysis or Centrifugation: EasySep™ Direct
Video
How to Isolate Cells Directly from Whole Blood Using the Easy 50 EasySep™ Magnet: 30-Minute Protocol
5:17
How to Isolate Cells Directly from Whole Blood Using the Easy 50 EasySep™ Magnet: 30-Minute Protocol
Video
Considerations to Streamline the Flow Cytometry Crossmatch (FCXM) Assay
29:55
Considerations to Streamline the Flow Cytometry Crossmatch (FCXM) Assay
Video
How to Isolate Cells Directly from Whole Blood - EasySep™ Direct Protocol, EasyEights Magnet
6:13
How to Isolate Cells Directly from Whole Blood - EasySep™ Direct Protocol, EasyEights Magnet
Video
How to Isolate Cells Directly from Whole Blood Using the EasySep™ Purple/Silver Magnets
4:30
How to Isolate Cells Directly from Whole Blood Using the EasySep™ Purple/Silver Magnets
Video
Isolate Cells with a Simple Pour-Off: EasySep™ Cell Separation Technology
1:13
Isolate Cells with a Simple Pour-Off: EasySep™ Cell Separation Technology
Webinar
Implementation of an Immunomagnetic Human Lymphocyte Isolation Procedure in an HLA Laboratory for Flow Cytometry Crossmatch Assay
59:04
Implementation of an Immunomagnetic Human Lymphocyte Isolation Procedure in an HLA Laboratory for Flow Cytometry Crossmatch Assay
Webinar
Optimize the Flow Cytometry Crossmatch Assay: Save Time Without Compromising Sensitivity
1:01:28
Optimize the Flow Cytometry Crossmatch Assay: Save Time Without Compromising Sensitivity
Webinar
Cell Separation Solutions for HLA and Chimerism Analysis
26:43
Cell Separation Solutions for HLA and Chimerism Analysis
Scientific Poster
Immunomagnetic Cell Isolation of Untouched Lymphocyte Populations Directly from Whole Blood
Scientific Poster
Cell Enrichment of Specific Lymphocyte Populations (T Cells, B Cells, Total Lymphocytes) from Whole Blood
Scientific Poster
Rapid, Automated Lymphocyte Isolation Directly from Whole Blood with EasySep™ Direct
Load More Educational Materials

Frequently Asked Question

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.
Read More

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).

Publications (2)

Scientific reports 2020 jan Profiling of human lymphocytes reveals a specific network of protein kinases modulated by endurance training status. K. Alack et al.

Abstract

To date, the effects of endurance exercise training on lymphocyte physiology at the kinome level are largely unknown. Therefore, the present study used a highly sensitive peptide-based kinase activity profiling approach to investigate if the basal activity of tyrosine (Tyr) and serine/threonine (Ser/Thr) kinases of human lymphocytes is affected by the aerobic endurance training status. Results revealed that the activity of various tyrosine kinases of the FGFR family and ZAP70 was increased, whereas the activity of multiple Ser/Thr kinases such as IKK$\alpha$, CaMK4, PKA$\alpha$, PKC$\alpha$+$\delta$ (among others) was decreased in lymphocytes of endurance trained athletes (ET). Moreover, functional associations between several differentially regulated kinases in ET-derived lymphocytes were demonstrated by phylogenetic mapping and network analysis. Especially, Ser/Thr kinases of the AGC-kinase (protein kinase A, G, and C) family represent exercise-sensitive key components within the lymphocytes kinase network that may mediate the long-term effects of endurance training. Furthermore, KEGG (Kyoto Encyclopedia of Genes and Genomes) and Reactome pathway analysis indicate that Ras as well as intracellular signaling by second messengers were found to be enriched in the ET individuals. Overall, our data suggest that endurance exercise training improves the adaptive immune competence by modulating the activity of multiple protein kinases in human lymphocytes.
NPJ precision oncology 2019 Liquid biopsy for minimal residual disease detection in leukemia using a portable blast cell biochip. B. L. Khoo et al.

Abstract

Long-term management for leukemia is challenging due to the painful and invasive procedure of bone marrow (BM) biopsy. At present, non-invasive liquid (blood) biopsy is not utilized for leukemia, due to lower counts of leukemia blast cells in the blood. Here, we described a robust system for the simultaneous detection and enrichment of rare blast cells. Enrichment of blast cells was achieved from blood with a one-step microfluidic blast cell biochip (BCB) sorting system, without specific targeting of proteins by antibodies. Non-target cells encountered a differential net force as compared to stiffer blast cells and were removed. The efficiency of the BCB promotes high detection sensitivity (1 in 106 cells) even from patients with minimal residual disease. The procedure was validated using actual blast cells from patients with various types of leukemia. Outcomes were compared to current evaluation standards, such as flow cytometry, using BM aspirates. Blast cell detection efficiency was higher in 55.6{\%} of the patients using the BCB as compared to flow cytometry, despite the lower concentrations of blast cells in liquid biopsy. These studies promote early-stage detection and routine monitoring for minimal residual disease in patients.
View All Publications

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