EasySep™ HLA Chimerism Whole Blood CD3 Positive Selection Kit
Immunomagnetic positive selection of human CD3+ cells from whole blood and buffy coat
Isolate highly purified human CD3+ cells from fresh whole blood or buffy coat samples by immunomagnetic positive selection, with the EasySep™ HLA Chimerism Whole Blood CD3 Positive Selection Kit. Widely used in published research for more than 20 years, EasySep™ combines the specificity of monoclonal antibodies with the simplicity of a column-free magnetic system.
In this EasySep™ positive selection procedure, desired cells are labeled with antibody complexes recognizing CD3 and magnetic particles. The cocktail in this kit also contains an antibody to human Fc receptor to prevent non-specific binding. Labeled cells are separated using an EasySep™ magnet and by simply pouring or pipetting off the unwanted cells. The cells of interest remain in the tube. Following magnetic cell isolation, the desired CD3+ cells are ready for downstream applications such as flow cytometry, culture, or DNA/RNA extraction.
This product replaces the EasySep™ Human Whole Blood CD3 Positive Selection Kit (Catalog #18081) and EasySep™ HLA Whole Blood CD3 Positive Selection Kit (Catalog #18081HLA), for even faster cell isolations.
Learn more about how immunomagnetic EasySep™ technology works or how to fully automate immunomagnetic cell isolation with RoboSep™ to save time and increase laboratory throughput. Explore additional products optimized for your workflow, including those for cell characterization, cryopreservation, and more.
In this EasySep™ positive selection procedure, desired cells are labeled with antibody complexes recognizing CD3 and magnetic particles. The cocktail in this kit also contains an antibody to human Fc receptor to prevent non-specific binding. Labeled cells are separated using an EasySep™ magnet and by simply pouring or pipetting off the unwanted cells. The cells of interest remain in the tube. Following magnetic cell isolation, the desired CD3+ cells are ready for downstream applications such as flow cytometry, culture, or DNA/RNA extraction.
This product replaces the EasySep™ Human Whole Blood CD3 Positive Selection Kit (Catalog #18081) and EasySep™ HLA Whole Blood CD3 Positive Selection Kit (Catalog #18081HLA), for even faster cell isolations.
Learn more about how immunomagnetic EasySep™ technology works or how to fully automate immunomagnetic cell isolation with RoboSep™ to save time and increase laboratory throughput. Explore additional products optimized for your workflow, including those for cell characterization, cryopreservation, and more.
Data Figures
Protocols and Documentation
Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.
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
Educational Materials (14)
Publications (1)
Neutrophil and Granulocytic Myeloid-Derived Suppressor Cell-Mediated T Cell Suppression Significantly Contributes to Immune Dysregulation in Common Variable Immunodeficiency Disorders. Journal of immunology (Baltimore, Md. : 1950) 2018 NOV
Abstract
Common variable immunodeficiency disorders (CVID) represent a group of primary immunodeficiency diseases characterized by hypogammaglobulinemia and impaired specific Ab response, resulting in recurrent infections due to dysfunctional immune response. The specific mechanisms mediating immune deficiency in CVID remain to be determined. Previous studies indicated that immune dysregulation in CVID patients is associated with chronic microbial translocation, systemic immune activation, and altered homeostasis of lymphocytic and myeloid lineages. A detailed phenotypic, functional characterization of plasma markers and immune cell populations was performed in 46 CVID patients and 44 healthy donors. CVID patients displayed significantly elevated plasma levels of a marker of neutrophil activation neutrophil gelatinase-associated lipocalin. Neutrophils from CVID patients exhibited elevated surface levels of CD11b and PD-L1 and decreased levels of CD62L, CD16, and CD80, consistent with a phenotype of activated neutrophils with suppressive properties. Neutrophils from CVID patients actively suppressed T cell activation and release of IFN-$\gamma$ via the production of reactive oxygen species. Furthermore, CVID was associated with an increased frequency of low-density neutrophils (LDNs)/granulocytic myeloid-derived suppressor cells. LDN/granulocytic myeloid-derived suppressor cell frequency in CVID patients correlated with reduced T cell responsiveness. Exogenous stimulation of whole blood with bacterial LPS emulated some but not all of the phenotypic changes observed on neutrophils from CVID patients and induced neutrophil population with LDN phenotype. The presented data demonstrate that neutrophils in the blood of CVID patients acquire an activated phenotype and exert potent T cell suppressive activity. Specific targeting of myeloid cell-derived suppressor activity represents a novel potential therapeutic strategy for CVID.
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