EasySep™ Mouse CD11b Positive Selection Kit II

Immunomagnetic positive selection cell isolation kit

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Immunomagnetic positive selection cell isolation kit
From: 673 USD

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Overview

The EasySep™ Mouse CD11b Positive Selection Kit II isolates highly purified CD11b+ cells from mouse splenocytes, bone marrow, lungs, brains or other tissues by immunomagnetic positive selection. Desired cells are targeted with antibodies and magnetic particles, and isolated without columns using an EasySep™ magnet. Unwanted cells are simply poured off, while desired cells remain in the tube. Isolated cells are immediately ready for downstream applications such as flow cytometry, culture, and cell-based experiments.

This product replaces the EasySep™ Mouse CD11b Positive Selection Kit (Catalog #18770) 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 95% purity (for bone marrow, purity can be up to 99%)
• No columns required
• Isolated cells are not fluorochrome-labeled
Components:
  • EasySep™ Mouse CD11b Positive Selection Kit II (Catalog #18970)
    • EasySep™ Mouse CD11b Positive Selection II Component A, 0.5 mL
    • EasySep™ Mouse CD11b Positive Selection II Component B, 0.5 mL
    • EasySep™ Dextran RapidSpheres™ 50100, 2 x 1 mL
    • Rat Serum, 2 mL
    • Empty Vial for use with RoboSep™
  • RoboSep™ Mouse CD11b Positive Selection Kit II (Catalog #18970RF)
    • EasySep™ Mouse CD11b Positive Selection II Component A, 0.5 mL
    • EasySep™ Mouse CD11b Positive Selection II Component B, 0.5 mL
    • EasySep™ Dextran RapidSpheres™ 50100, 2 x 1 mL
    • Rat Serum, 2 mL
    • Empty Vial for use with RoboSep™
    • RoboSep™ Buffer (Catalog #20104)
    • RoboSep™ Filter Tips (Catalog #20125)
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:
Monocytes; Myeloid Cells
Species:
Mouse
Sample Source:
Bone Marrow; Other; Spleen; Lung
Selection Method:
Positive
Application:
Cell Isolation
Brand:
EasySep; RoboSep
Area of Interest:
Immunology

Scientific Resources

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.
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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

Typical EasySep™ Mouse CD11b Positive Selection Profile from Mouse Spleen and Bone Marrow

Figure 1. Typical EasySep™ Mouse CD11b Positive Selection Profile from Mouse Spleen and Bone Marrow

Starting with mouse splenocytes and bone marrow samples, the CD11b+ cell content of the isolated fraction is typically 92.6 ± 3.0% and 98.4 ± 2.3%, respectively (gated on viable singlet cells, mean ± SD using the purple EasySep™ Magnet).

Typical EasySep™ Mouse CD11b Positive Selection Profile from Mouse Lung Tissue

Figure 2. Typical EasySep™ Mouse CD11b Positive Selection Profile from Mouse Lung Tissue

Starting with mouse lung single-cell suspension, the CD11b+ cell content of the isolated fraction is typically 86.9 ± 7.6% (mean ± SD using the purple EasySep™ Magnet).

Typical EasySep™ Mouse CD11b Positive Selection Profile from Mouse Brain Tissue

Figure 3. Typical EasySep™ Mouse CD11b Positive Selection Profile from Mouse Brain Tissue

Starting with a single-cell suspension of mouse brain cells, the CD11b+ cell content of the isolated fraction is typically 94.2 ± 4.0% (mean ± SD using the purple EasySep™ Magnet). In the above example, the purities of the start and final isolated fractions are 32.5% and 94.5%, respectively.

Publications

(2)
Nature 2018 SEP

Clearance of senescent glial cells prevents tau-dependent pathology and cognitive decline.

T. J. Bussian et al.

Abstract

Cellular senescence, which is characterized by an irreversible cell-cycle arrest1 accompanied by a distinctive secretory phenotype2, can be induced through various intracellular and extracellular factors. Senescent cells that express the cell cycle inhibitory protein p16INK4A have been found to actively drive naturally occurring age-related tissue deterioration3,4 and contribute to several diseases associated with ageing, including atherosclerosis5 and osteoarthritis6. Various markers of senescence have been observed in patients with neurodegenerative diseases7-9; however, a role for senescent cells in the aetiology of these pathologies is unknown. Here we show a causal link between the accumulation of senescent cells and cognition-associated neuronal loss. We found that the MAPTP301SPS19 mouse model of tau-dependent neurodegenerative disease10 accumulates p16INK4A-positive senescent astrocytes and microglia. Clearance of these cells as they arise using INK-ATTAC transgenic mice prevents gliosis, hyperphosphorylation of both soluble and insoluble tau leading to neurofibrillary tangle deposition, and degeneration of cortical and hippocampal neurons, thus preserving cognitive function. Pharmacological intervention with a first-generation senolytic modulates tau aggregation. Collectively, these results show that senescent cells have a role in the initiation and progression of tau-mediated disease, and suggest that targeting senescent cells may provide a therapeutic avenue for the treatment of these pathologies.
The Journal of experimental medicine 2016 OCT

MAIT cells promote inflammatory monocyte differentiation into dendritic cells during pulmonary intracellular infection.

Meierovics AI et al.

Abstract

Mucosa-associated invariant T (MAIT) cells are a unique innate T cell subset that is necessary for rapid recruitment of activated CD4(+) T cells to the lungs after pulmonary F. tularensis LVS infection. Here, we investigated the mechanisms behind this effect. We provide evidence to show that MAIT cells promote early differentiation of CCR2-dependent monocytes into monocyte-derived DCs (Mo-DCs) in the lungs after F. tularensis LVS pulmonary infection. Adoptive transfer of Mo-DCs to MAIT cell-deficient mice (MR1(-/-) mice) rescued their defect in the recruitment of activated CD4(+) T cells to the lungs. We further demonstrate that MAIT cell-dependent GM-CSF production stimulated monocyte differentiation in vitro, and that in vivo production of GM-CSF was delayed in the lungs of MR1(-/-) mice. Finally, GM-CSF-deficient mice exhibited a defect in monocyte differentiation into Mo-DCs that was phenotypically similar to MR1(-/-) mice. Overall, our data demonstrate that MAIT cells promote early pulmonary GM-CSF production, which drives the differentiation of inflammatory monocytes into Mo-DCs. Further, this delayed differentiation of Mo-DCs in MR1(-/-) mice was responsible for the delayed recruitment of activated CD4(+) T cells to the lungs. These findings establish a novel mechanism by which MAIT cells function to promote both innate and adaptive immune responses.
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.