EasySep™ Mouse CD4 Positive Selection Kit II
Immunomagnetic positive selection kit
-
EasySep™ Mouse CD4 Positive Selection Kit II -
RoboSep™ Mouse CD4 Positive Selection Kit II -
Label for EasySep™ Mouse CD4 Positive Selection Kit II
More Views
Required Products
-
Magnet for column-free immunomagnetic separation -
Cell separation buffer -
Compatible antibodies for purity assessment of isolated cells
Overview
The EasySep™ Mouse CD4 Positive Selection Kit II is designed to isolate CD4+ cells from single-cell suspensions of splenocytes or other tissues by positive selection. Desired cells are targeted with antibody complexes recognizing CD4 and dextran-coated magnetic particles. Labeled cells are separated using an EasySep™ magnet without the use of columns. Cells of interest remain in the tube while unwanted cells are poured off.
This product replaces the EasySep™ Mouse CD4 Positive Selection Kit (Catalog #18752) for even faster cell isolations and does not result in the labeling of isolated cells with PE.
This product replaces the EasySep™ Mouse CD4 Positive Selection Kit (Catalog #18752) for even faster cell isolations and does not result in the labeling of isolated cells with PE.
Advantages:
• Fast and easy-to-use
• Up to 99% purity
• No columns required
• Isolated cells are not fluorochrome-labeled
• Up to 99% purity
• No columns required
• Isolated cells are not fluorochrome-labeled
Components:
- EasySep™ Mouse CD4 Positive Selection Kit II (Catalog #18952)
- EasySep™ Mouse CD4 Positive Selection II Component A, 0.5 mL
- EasySep™ Mouse CD4 Positive Selection II Component B, 0.5 mL
- Normal Rat Serum, 2 mL
- EasySep™ Dextran RapidSpheres™ 50100, 1 mL
- RoboSep™ Empty Vial
- RoboSep™ Mouse CD4 Positive Selection Kit II (Catalog #18952RF)
- EasySep™ Mouse CD4 Positive Selection II Component A, 0.5 mL
- EasySep™ Mouse CD4 Positive Selection II Component B, 0.5 mL
- Normal Rat Serum, 2 mL
- EasySep™ Dextran RapidSpheres™ 50100, 1 mL
- RoboSep™ Empty Vial
- RoboSep™ Buffer (Catalog #20104)
- RoboSep™ Filter Tips (Catalog #20125) x 2
Magnet Compatibility:
• EasySep™ Magnet (Catalog #18000)
• “The Big Easy” EasySep™ Magnet (Catalog #18001)
• EasyEights™ EasySep™ Magnet (Catalog #18103)
• RoboSep™-S (Catalog #21000)
Subtype:
Cell Isolation Kits
Cell Type:
T Cells; T Cells, CD4+
Species:
Mouse
Sample Source:
Other; Spleen
Selection Method:
Positive
Application:
Cell Isolation
Brand:
EasySep; RoboSep
Area of Interest:
Immunology
Related Products
-
EasySep™ Mouse CD90.2 Positive Selection Kit II
Immunomagnetic positive selection kit -
EasySep™ Mouse CD4+ T Cell Isolation Kit
15-Minute cell isolation kit using immunomagnetic negative selection
Labeling Antibodies
-
Anti-Mouse CD3e Antibody, Clone 145-2C11
Hamster (Armenian) monoclonal IgG1 antibody against mouse CD3e -
Anti-Mouse CD4 Antibody, Clone RM4-4
Rat monoclonal IgG2b antibody against mouse CD4
Scientific Resources
Product Documentation
Document Type
Product Name
Catalog #
Lot #
Language
Educational Materials
(8)
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.
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.
Research Area
Workflow Stages for
Workflow Stages
Data and Publications
Data
Figure 1. Typical EasySep™ CD4 Positive Selection Profile
Starting with mouse splenocytes, the CD4+ cell content of the isolated fraction is typically 98.6 ± 0.4% (mean ± SD for the purple EasySep™ Magnet).
Publications
(3)
Frontiers in immunology 2019
Macrophage Coordination of the Interferon Lambda Immune Response.
Abstract
Abstract
Lambda interferons (IFN-$\lambda$s) are a major component of the innate immune defense to viruses, bacteria, and fungi. In human liver, IFN-$\lambda$ not only drives antiviral responses, but also promotes inflammation and fibrosis in viral and non-viral diseases. Here we demonstrate that macrophages are primary responders to IFN-$\lambda$, uniquely positioned to bridge the gap between IFN-$\lambda$ producing cells and lymphocyte populations that are not intrinsically responsive to IFN-$\lambda$. While CD14+ monocytes do not express the IFN-$\lambda$ receptor, IFNLR1, sensitivity is quickly gained upon differentiation to macrophages in vitro. IFN-$\lambda$ stimulates macrophage cytotoxicity and phagocytosis as well as the secretion of pro-inflammatory cytokines and interferon stimulated genes that mediate immune cell chemotaxis and effector functions. In particular, IFN-$\lambda$ induced CCR5 and CXCR3 chemokines, stimulating T and NK cell migration, as well as subsequent NK cell cytotoxicity. Using immunofluorescence and cell sorting techniques, we confirmed that human liver macrophages expressing CD14 and CD68 are highly responsive to IFN-$\lambda$ ex vivo. Together, these data highlight a novel role for macrophages in shaping IFN-$\lambda$ dependent immune responses both directly through pro-inflammatory activity and indirectly by recruiting and activating IFN-$\lambda$ unresponsive lymphocytes.
Toxicology and applied pharmacology 2018 OCT
Astragaloside IV regulates differentiation and induces apoptosis of activated CD4+ T cells in the pathogenesis of experimental autoimmune encephalomyelitis.
Abstract
Abstract
CD4+ T cells, especially T-helper (Th) cells (Th1, Th2 and Th17) and regulatory T cells (Treg) play pivotal role in the pathogenesis of multiple sclerosis (MS), a demyelinating autoimmune disease occurring in central nervous system (CNS). Astragaloside IV (ASI, CAS: 84687-43-4) is one of the saponins isolated from Astragalus membranceus, a traditional Chinese medicine with immunomodulatory effect. So far, whether ASI has curative effect on experimental autoimmune encephalomyelitis (EAE), an animal model of MS, and how it affects the subsets of CD4+ T cells, as well as the underlying mechanism have not been clearly elucidated. In the present study, ASI was found to ameliorate the progression and hamper the recurrence of EAE effectively in the treatment regimens. It significantly reduced the demyelination and inflammatory infiltration of CNS in EAE mice by suppressing the percentage of Th1 and Th17 cells, which was closely associated with the inhibition of JAK/STAT and NF-$\kappa$B signaling pathways. ASI also increased the percentage of Treg cells in spleen and CNS, which was accompanied by elevated Foxp3. However, in vitro experiments disclosed that ASI could regulate the differentiation of Th17 and Treg cells but not Th1 cells. In addition, it induced the apoptosis of MOG-stimulated CD4+ T cells probably through modulating STAT3/Bcl-2/Bax signaling pathways. Together, our findings suggested that ASI can modulate the differentiation of autoreactive CD4+ T cells and is a potential prodrug or drug for the treatment of MS and other similar autoimmune diseases.
Cell reports 2016 NOV
Opposing Development of Cytotoxic and Follicular Helper CD4 T Cells Controlled by the TCF-1-Bcl6 Nexus.
Abstract
Abstract
CD4(+) T cells develop distinct and often contrasting helper, regulatory, or cytotoxic activities. Typically a property of CD8(+) T cells, granzyme-mediated cytotoxic T cell (CTL) potential is also exerted by CD4(+) T cells. However, the conditions that induce CD4(+) CTLs are not entirely understood. Using single-cell transcriptional profiling, we uncover a unique signature of Granzyme B (GzmB)(+) CD4(+) CTLs, which distinguishes them from other CD4(+) T helper (Th) cells, including Th1 cells, and strongly contrasts with the follicular helper T (Tfh) cell signature. The balance between CD4(+) CTL and Tfh differentiation heavily depends on the class of infecting virus and is jointly regulated by the Tfh-related transcription factors Bcl6 and Tcf7 (encoding TCF-1) and by the expression of the inhibitory receptors PD-1 and LAG3. This unique profile of CD4(+) CTLs offers targets for their study, and its antagonism by the Tfh program separates CD4(+) T cells with either helper or killer functions.
PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED. FOR ADDITIONAL INFORMATION ON QUALITY AT STEMCELL, REFER TO WWW.STEMCELL.COM/COMPLIANCE.