Cd14 Isolation
Cd14 Isolation - Related Videos
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This study compares two different methods of human monocyte isolation for obtaining in vitro dendritic cells (DCs). Monocytes are selected by adherence or negatively enriched by magnetic separation. Monocyte yield and viability along with MDDC viability, proliferation and CD11c/CD14 surface marker expression will be compared between both methods.
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08:09
Vasodilation of Isolated Vessels and the Isolation of the Extracellular Matrix of Tight-skin Mice
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07:12
Neutrophil Isolation Protocol
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FAQs
The separation depends on selective antigen recognition. An antibody binds CD14 on target cells, either directly or through an attached magnetic particle. When the sample is exposed to a magnetic field, labeled cells are retained, whereas unlabeled leukocytes can be removed during washing. This molecular labeling step converts CD14 expression into a practical means of enriching a defined cell population.
Magnetic particles provide the physical link between antibody recognition and cell retention. They do not replace the antibody’s specificity; instead, they allow cells carrying the recognized CD14 marker to respond to the magnetic field. This distinction matters when interpreting the enriched fraction, because separation is based on marker-associated labeling rather than on general properties shared by all leukocytes.
During washing, unlabeled cells are removed while labeled cells remain associated with the magnetic separation step. This reduces carryover of other leukocytes and helps produce a more defined CD14-positive fraction. The practical benefit is greater consistency in experiments examining cytokine responses, monocyte differentiation, innate immune recognition, or interactions between isolated cells and infectious agents.
Enriching a defined CD14-positive population gives researchers a more standardized starting material than an unsorted mixed leukocyte sample. Comparable starting populations make it easier to interpret differences in cellular responses across experiments. The isolated cells can then support controlled studies of differentiation, cytokine production, innate immune recognition, and infection-related interactions.
A basic workflow begins with a mixed leukocyte sample and exposure to an antibody that recognizes CD14, either directly or through magnetic particles. The labeled sample is placed in a magnetic field, allowing labeled cells to be retained while unlabeled cells are removed during washing. The enriched fraction is then available for downstream immunological, molecular, culture, or functional analysis.
The essential components are a mixed leukocyte sample, CD14-recognizing antibodies, and, when used, magnetic particles that associate with labeled cells. A magnetic field provides the retention force, while washing removes unlabeled cells. These components work together to translate CD14 expression into physical separation without requiring the sample to be analyzed only as an unsorted leukocyte mixture.
The method is useful when experiments require a defined population for studying innate immune recognition or responses to infectious agents. It also supports investigations of cytokine responses, monocyte differentiation, and cell interactions during infection-related studies. Enrichment before experimentation helps connect observed outcomes to a more consistent CD14-positive starting population.
The enriched cells can be directed into several downstream workflows, including flow cytometry, culture, molecular analysis, and functional assays. These approaches can examine cellular markers, responses, differentiation, or activity under defined experimental conditions. Using the isolated fraction therefore links magnetic enrichment with both descriptive measurements and functional studies in immunology and infection research.