EasySep™ Human CD138 Positive Selection Kit II

Immunomagnetic positive selection cell isolation kit

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EasySep™ Human CD138 Positive Selection Kit II

Immunomagnetic positive selection cell isolation kit

From: 807 USD
Catalog #
17877_C
Immunomagnetic positive selection cell isolation kit

Product Advantages


  • Fast and easy-to-use

  • No columns required

What's Included

  • EasySep™ Human CD138 Positive Selection Kit II (Catalog #17877)
    • EasySep™ Human CD138 Positive Selection Kit II Cocktail, 1 mL
    • EasySep™ Dextran RapidSpheres™ 50100, 1 mL
  • RoboSep™ Human CD138 Positive Selection Kit II with Filter Tips (Catalog #17877RF)
    • EasySep™ Human CD138 Positive Selection Kit II Cocktail, 1 mL
    • EasySep™ Dextran RapidSpheres™ 50100, 1 mL
    • RoboSep™ Buffer (Catalog #20104)
    • RoboSep™ Filter Tips (Catalog #20125)
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

Overview

The EasySep™ Human CD138 Positive Selection Kit II is designed to isolate CD138+ (syndecan-1) cells from fresh or previously frozen bone marrow or peripheral blood mononuclear cells by positive selection. Desired cells are targeted with Tetrameric Antibody Complexes recognizing CD138 and dextran-coated magnetic particles. This cocktail also contains an antibody to human Fc receptor to minimize nonspecific binding. 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. The CD138 antigen is expressed on normal and malignant plasma cells (but not mature B cells).

This product is an improved version of the EasySep™ Human CD138 Positive Selection Kit (Catalog #18357) that provides highly purified cells using a shorter protocol.
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
B Cells, Plasma
Species
Human
Sample Source
Bone Marrow, PBMC
Selection Method
Positive
Application
Cell Isolation
Brand
EasySep, RoboSep
Area of Interest
Cancer, Immunology

Data Figures

Starting with thawed PBMCs spiked with a multiple myeloma cell line, U266, the CD138+ cell content of the isolated fraction typically ranges from 93.0 - 98.2%. In the above example, the purities of the start and final isolated fractions are 9.16% and 94.34%, respectively.

Protocols and Documentation

Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.

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17877RF
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Safety Data Sheet 1
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Safety Data Sheet 1
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Safety Data Sheet 2
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17877RF
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English
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Safety Data Sheet 3
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17877RF
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English

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.

Resources and Publications

Publications (7)

BCMA peptide-engineered nanoparticles enhance induction and function of antigen-specific CD8+ cytotoxic T lymphocytes against multiple myeloma: clinical applications. J. Bae et al. Leukemia 2020 jan

Abstract

The purpose of these studies was to develop and characterize B-cell maturation antigen (BCMA)-specific peptide-encapsulated nanoparticle formulations to efficiently evoke BCMA-specific CD8+ cytotoxic T lymphocytes (CTL) with poly-functional immune activities against multiple myeloma (MM). Heteroclitic BCMA72-80 [YLMFLLRKI] peptide-encapsulated liposome or poly(lactic-co-glycolic acid) (PLGA) nanoparticles displayed uniform size distribution and increased peptide delivery to human dendritic cells, which enhanced induction of BCMA-specific CTL. Distinct from liposome-based nanoparticles, PLGA-based nanoparticles demonstrated a gradual increase in peptide uptake by antigen-presenting cells, and induced BCMA-specific CTL with higher anti-tumor activities (CD107a degranulation, CTL proliferation, and IFN-$\gamma$/IL-2/TNF-$\alpha$ production) against primary CD138+ tumor cells and MM cell lines. The improved functional activities were associated with increased Tetramer+/CD45RO+ memory CTL, CD28 upregulation on Tetramer+ CTL, and longer maintenance of central memory (CCR7+ CD45RO+) CTL, with the highest anti-MM activity and less differentiation into effector memory (CCR7- CD45RO+) CTL. These results provide the framework for therapeutic application of PLGA-based BCMA immunogenic peptide delivery system, rather than free peptide, to enhance the induction of BCMA-specific CTL with poly-functional Th1-specific anti-MM activities. These results demonstrate the potential clinical utility of PLGA nanotechnology-based cancer vaccine to enhance BCMA-targeted immunotherapy against myeloma.
Silencing of SENP2 in Multiple Myeloma Induces Bortezomib Resistance by Activating NF-$\kappa$B Through the Modulation of I$\kappa$B$\alpha$ Sumoylation. H. Xie et al. Scientific reports 2020 jan

Abstract

The proteasome inhibitor bortezomib is the most successfully applied chemotherapeutic drug for treating multiple myeloma. However, its clinical efficacy reduced due to resistance development. The underlying molecular mechanisms of bortezomib resistance are poorly understood. In this study, by combining in silico analysis and sgRNA library based drug resistance screening assay, we identified SENP2 (Sentrin/SUMO-specific proteases-2) as a bortezomib sensitive gene and found its expression highly downregulated in bortezomib resistant multiple myeloma patient's samples. Furthermore, down regulation of SENP2 in multiple myeloma cell line RPMI8226 alleviated bortezomib induced cell proliferation inhibition and apoptosis, whereas, overexpression of SENP2 sensitized these cells to bortezomib treatment. We further demonstrate that knockdown of SENP2 in RPMI8226 cells increased SUMO2 conjugated I$\kappa$B$\alpha$ that resulted in the activation of NF-$\kappa$B. Taken together, we report that silencing of SENP2 and consequent activation of NF-$\kappa$B through the modulation of I$\kappa$B$\alpha$ sumoylation as a novel mechanism inducing bortezomib resistance in multiple myeloma.
Oncolytic measles virus therapy enhances tumor antigen-specific T-cell responses in patients with multiple myeloma. N. Packiriswamy et al. Leukemia 2020 apr

Abstract

Oncolytic virus therapy leads to immunogenic death of virus-infected tumor cells and this has been shown in preclinical models to enhance the cytotoxic T-lymphocyte response against tumor-associated antigens (TAAs), leading to killing of uninfected tumor cells. To investigate whether oncolytic virotherapy can increase immune responses to tumor antigens in human subjects, we studied T-cell responses against a panel of known myeloma TAAs using PBMC samples obtained from ten myeloma patients before and after systemic administration of an oncolytic measles virus encoding sodium iodide symporter (MV-NIS). Despite their prior exposures to multiple immunosuppressive antimyeloma treatment regimens, T-cell responses to some of the TAAs were detectable even before measles virotherapy. Measurable baseline T-cell responses against MAGE-C1 and hTERT were present. Furthermore, MV-NIS treatment significantly (P {\textless} 0.05) increased T-cell responses against MAGE-C1 and MAGE-A3. Interestingly, one patient who achieved complete remission after MV-NIS therapy had strong baseline T-cell responses both to measles virus proteins and to eight of the ten tested TAAs. Our data demonstrate that oncolytic virotherapy can function as an antigen agnostic vaccine, increasing cytotoxic T-lymphocyte responses against TAAs in patients with multiple myeloma, providing a basis for continued exploration of this modality in combination with immune checkpoint blockade.

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