Cd34 Positive Cells
Cd34 Positive Cells - Related Videos
12:19
Analysis of Cell Cycle Position in Mammalian Cells
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Cited by 71 •
2012
Determining the cell cycle position of a population of cells, or understanding how signals affect proliferation, can be readily measured by flow cytometry using this protocol. We report a simple experimental approach to staining cells and quantifying their position in the cell cycle.
08:14
Immunomagnetic Isolation of the Vascular Wall-Resident CD34+ Stem Cells from Mice
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Cited by 1 •
2023
This study has established a stable and efficient method for the isolation, culture, and functional determination of vascular wall-resident CD34+ stem cells (CD34+ VW-SCs). This easy-to-follow and time-effective isolation method can be utilized by other investigators to study the potential mechanisms involved in cardiovascular diseases.
09:46
Megakaryocyte Differentiation and Platelet Formation from Human Cord Blood-derived CD34+ Cells
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Cited by 21 •
2017
A highly pure population of megakaryocytes can be obtained from cord blood-derived CD34+ cells. A method for CD34+ cell isolation and megakaryocyte differentiation is described here.
02:32
Position-effect Variegation
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2020
In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
06:57
Leukodepletion Filters-Derived CD34+ Cells As a Cell Source to Study Megakaryocyte Differentiation and Platelet Formation
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Cited by 4 •
2021
This protocol describes in detail all the steps involved in obtaining leukofilter-derived CD34+ hematopoietic progenitors and their in vitro differentiation and maturation into proplatelet-bearing megakaryocytes that are able to release platelets in the culture medium. This procedure is useful for in-depth analysis of cellular and molecular mechanisms controlling megakaryopoiesis.
FAQs
CD34 expression serves as an identification handle rather than a complete functional diagnosis. Because the marker can occur on hematopoietic stem cells, progenitor cells, and certain endothelial progenitor populations, a CD34-positive result does not by itself establish stem-cell function or a single cell identity. Researchers therefore interpret the population in the context of the assay and study question.
Antibody binding makes these cells detectable or separable because antibodies directed against CD34 recognize the surface glycoprotein. The same recognition principle supports different readouts: immunomagnetic separation enriches the labeled population, whereas flow cytometry measures it and fluorescence-activated cell sorting can isolate selected cells. Thus, the choice depends on whether enrichment, measurement, or physical sorting is needed.
Tracking these populations can reveal how bone marrow responds when hematopoiesis is altered. In immunology and infection research, measurements may be used to examine regeneration and assess changes associated with infection or treatment. The result is most informative when interpreted as a change in a CD34-positive population, rather than as proof that all measured cells share identical immune or stem-cell behavior.
A practical workflow begins by selecting an antibody against CD34, applying it to the cell sample, and then choosing the readout suited to the experiment. Immunomagnetic separation supports enrichment, flow cytometry supports population measurement, and fluorescence-activated cell sorting supports isolation. These approaches allow the same marker-based strategy to serve different experimental goals.
Enrichment of CD34-positive cells can support investigations of hematopoietic stem and progenitor compartments, while measurement can characterize their abundance in a sample. Such data are relevant to blood-cell development, immune reconstitution, and hematopoietic stem-cell transplantation. The outcome is a defined marker-based population for downstream study, not an automatic confirmation of functional stem-cell capacity.
In infection-focused experiments, the population can serve as an indicator of bone-marrow and regenerative responses, including effects associated with treatment. Interpretation should preserve the distinction between marker detection and biological function: an increase or decrease in CD34-positive cells identifies a population-level change, but CD34 expression alone cannot specify which cell type caused it or how it will function.