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Human-CD4+-Helper-T-Cells

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产品名称: Human-CD4+-Helper-T-Cells
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产品展商: ABM
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Human-CD4+-Helper-T-Cells


Human-CD4+-Helper-T-Cells  的详细介绍
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Description Human CD4+ Helper T cells are a sub-group of lymphocytes that play a crucial role in establishing and maximizing the capabilities of the immune system. These cells are unusual in that they have no cytotoxic or phagocytic activity; they cannot kill infected host cells (also known as somatic cells) or pathogens. CD4+ T cells are essential in determining B cell antibody class switching, in the activation and growth of cytotoxic T cells, and in maximizing bactericidal activity of phagocytes such as macrophages. It is this diversity in function and their role in influencing other cells that gives T helper cells their name.
Procedure Overview
BioSafety Level II
Organism Homo sapiens
Source Organ Blood
Isolation These cells are extracted from whole blood using Lymphoprep(R), a hydrophilic polysaccharide that separates layers of blood, with monocytes and lymphocytes forming a buffy coat under a layer of plasma.
Growth Properties Suspension
Morphology Spheric
Passage Number They are cryopreserved immediately after isolation
Population Doubling The Human CD4+ Helper T Cells do not proliferate in vitro
Markers CD4+
Applications For Research Use Only. The most common applications of CD4+ Helper T cells are T cell proliferation assays, ELISPOT assays, secretion assays, and cytokine release assays.
Disease Normal
Propagation The basal medium for this cell line is Prigrow X series medium available in ABM, Cat. No. TM4120.
Atmosphere: air, 95%; Carbon dioxide (CO2), 5%. The Human CD4+ Helper T Cells do not proliferate in vitro .
Quality Control abm’s cryopreserved PBMCs consistently exhibited viability above 87% (Day 0 when thawed) with less than a 7.5% deviation from that of fresh PBMCs.
Disclaimer 1. The CoA for this product (provided upon request) verifies the cell-type specific gene expression via RT-PCR only. All test parameters provided in the CoA are conducted using abm's standardized culture system and procedures. The stated values may vary under the end-user's culture conditions. Please verify that the product is suitable for your studies by referencing published papers. All sales are final.
2. We strongly recommend live cell shipments for ease of cell transfer and this option can be requested at the time of ordering. Please note that the end-user will need to evaluate the feasibility of live cell shipment by taking into account the final destination's temperature variation and its geographical location. In addition, we thoroughly test our cell lines for freeze-thaw recovery. If frozen cells were received and not recovered in your lab under the exact, specified conditions (using recommended culture vessel, media, additional supplements, and atmospheric conditions), a live cell replacement is possible at a cost (plus shipping).
3. All of abm's cell biology products are for research use ONLY and NOT for therapeutic/diagnostic applications. abm is not liable for any repercussions arising from the use of its cell biology product(s) in therapeutic/diagnostic application(s). Please contact a technical service representative for more information.
4. abm makes no warranties or representations as to the accuracy of the information on this site. Citations from literature and provided for informational purposes only. abm does not warrant that such information has been shown to be accurate.
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