Cell Enrichment
Cell Enrichment - Related Videos
06:32
Isolation, Enrichment, and Maintenance of Medulloblastoma Stem Cells
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Cited by 28 •
2010
This protocol describes the isolation, enrichment, and maintenance of medulloblastoma tumor stem cells derived from mutant mice with ectopic Sonic hedgehog pathway activity.
10:24
Automated Cell Enrichment of Cytomegalovirus-specific T cells for Clinical Applications using the Cytokine-capture System
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Cited by 23 •
2015
The goal of this protocol is to manufacture pathogen-specific clinical-grade T cells using a bench-top, automated, second generation cell enrichment device that incorporates a closed cytokine capture system and does not require dedicated staff or use of a GMP facility. The cytomegalovirus pp65-specific-T cells generated can be directly administered to patients.
13:58
Peptide:MHC Tetramer-based Enrichment of Epitope-specific T cells
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Cited by 28 •
2012
This protocol describes the use of peptide:MHC tetramers and magnetic microbeads to isolate low frequency populations of epitope-specific T cells and analyze them by flow cytometry. This method enables the direct study of endogenous T cell populations of interest from in vivo experimental systems.
03:57
T-Cell Enrichment: A Technique to Isolate T-Cells from Mixed Cell Population by Magnetic Separation
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2023
This video describes T-cells enrichment from the spleen of a mouse by negative selection using a magnetic separator. The technique involves targeting the other cells in the sample for depletion using antibodies or ligands directed against specific cell surface antigens.
11:37
In vitro Enrichment of Ovarian Cancer Tumor-initiating Cells
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Cited by 30 •
2015
Tumor-initiating cells (TICs) may represent a viable therapeutic target for the treatment of ovarian cancer, a highly recurrent and fatal disease. We present a protocol for culture conditions that enrich for this highly tumorigenic population of cells.
FAQs
Cell Enrichment can exploit surface markers, cell size, density, adhesion, and other physical properties. Surface-marker differences support antibody-based magnetic separation or flow sorting, whereas density differences can be used with density-gradient centrifugation. Selective culture conditions provide another route when culture conditions can favor the desired population. Matching the separation principle to the clearest cellular difference helps focus downstream work.
Both approaches can use surface markers to distinguish cells, but they produce enrichment through different separation formats. Antibody-based magnetic separation uses marker recognition to associate selected cells with magnetic handling, while flow sorting separates cells through a sorting workflow based on identified cellular differences. The choice depends on the sample and whether the workflow prioritizes recovery, purity, viability, or preserved behavior.
Usefulness depends on more than the fraction of desired cells recovered. Purity indicates how much unwanted material remains, recovery indicates how much of the target population is retained, and viability indicates whether cells remain alive. The procedure should also preserve native cell behavior, because a highly focused population may still be unsuitable if separation alters the biology being measured.
A typical workflow begins with a mixed biological sample and identifies a distinguishing feature of the desired cells. The researcher then selects a compatible approach, such as magnetic separation, flow sorting, density-gradient centrifugation, or selective culture conditions. After enrichment, the population is evaluated for recovery, purity, viability, and preservation of native behavior before downstream analysis or experimentation.
Selection should follow the property that most clearly separates the desired cells from the rest of the sample. Surface markers point toward antibody-based magnetic separation or flow sorting; density differences support density-gradient centrifugation; and selective culture conditions may be appropriate when culture conditions can favor the target population. The intended downstream use also matters because recovery, purity, viability, and native behavior may have different priorities.
Enriched populations support cell characterization, molecular profiling, disease research, stem cell studies, and therapeutic development. Concentrating the relevant cells can make downstream analysis or experimentation more focused and reliable than work performed on an unfocused mixed sample. Interpretation still requires attention to purity, recovery, viability, and preservation of native cell behavior, since these factors affect the value of the results.