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APOAF
Annexin V-FITC Apoptosis Detection Kit
Synonym(e):
Annexin V-FITC, Apoptosis probe FITC
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About This Item
UNSPSC-Code:
12352207
NACRES:
NA.84
Preise und Verfügbarkeit sind derzeit nicht verfügbar.
Empfohlene Produkte
Verwendung
(20 tests)
Qualitätsniveau
Verpackung
pkg of 1 kit
Methode(n)
flow cytometry: suitable
Anwendung(en)
cell analysis
detection
Nachweisverfahren
fluorometric
Versandbedingung
wet ice
Lagertemp.
2-8°C
Allgemeine Beschreibung
Annexin V-FITC kit allows fluorescent detection of annexin V bound to apoptotic cells and quantitative determination by flow cytometry. The AnnexinV-FITC kit uses annexin V conjugated with fluorescein isothiocyante (FITC) to label phosphatidylserine sites on the membrane surface. The kit includes propidium iodide (PI) to label the cellular DNA in necrotic cells where the cell membrane has been totally compromised. This combination allows the differentiation among early apoptotic cells (annexin V positive, PI negative), necrotic cells (annexin V positive, PI positive), and viable cells (annexin V negative, PI negative).
Anwendung
Annexin V-FITC Apoptosis Detection Kit was used:
- in staining of LNCaP prostate cancer cells for measuring the G. lucidum extracts activity during the treatment of prostate cancer.[1]
- for tumor cell labelling to study the inhibitory activity of DBP-maf (Vitamin D binding protein-macrophage activating factor) on prostate tumor cells.[2]
- for indirect measurement of flippase activity.[3]
Leistungsmerkmale und Vorteile
Detects apoptosis earlier in the process than DNA-based assays such as TUNEL.
- Rapid labeling of cells. Cell staining takes only 10 minutes.
- No cell fixation or processing required, reducing the detection time and allowing the cells to be used for further study.
- Propidium iodide secondary dye is included with the kit to differentiate apoptotic cells from viable and necrotic cells.
Sonstige Hinweise
Allow all components to reach room temperature before use.
Nur Kit-Komponenten
Produkt-Nr.
Beschreibung
- APOAFA
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10 - Combustible liquids
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What is the Department of Transportation shipping information for this product?
1 answer-
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Can Product APOAF, Annexin V-FITC Apoptosis Detection Kit be used on fixed cells?
1 answer-
No. Product APOAF, Annexin V-FITC Apoptosis Detection Kit must be performed on live cells in order to measure Apoptosis. The assay is based on the externization of phosphatidylserine from the inner cell membrane to the outer cell membrane. If the membrane is preturbed due to fixation, non-speciifc staining of the inner cell membrane might occur
Helpful?
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When using Product APOAF, Annexin V-FITC Apoptosis Detection Kit, I have cells that are Annexin V FITC negative and PI positive. What are these cells?
1 answer-
It is not possible to have cells that are PI positive without the cells also being positive for Annexin V binding. Cells are PI positive because the membrane has been compromised. If this is the case, Annexin V can also enter the cell and bind to the PS on the internal cell membrane. The gating on the histogram for the FITC channel should be changed so that all cells that are PI positive are also Annexin V positive.
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When using the Annexin V-FITC Apoptosis Detection Kit, Product APOAF, can I use any buffer for resuspending my cells?
1 answer-
The binding buffer included in the kit needs to be used for resuspending cells. The buffer contains calcium chloride at a final (1X) concentration of 2.5 mM which is necessary for the binding of annexin V to phosphatidylserine.
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What wavelength do I use to detect Annexin V-FITC and Propidium Iodide when using Annexin V-FITC Apoptosis Detection Kit, Product APOAF?
1 answer-
Annexin V FITC will have a maximum emission of 528 nm. This can be measured in the standard FITC Channel on a flow cytometer (FL1). Propidium Iodide has a maximum emission of 620 nm. This is measured on the short red channel on a flow cytometer (FL2 or FL3).
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Can I use Product APOAF, Annexin V-FITC Apoptosis Detection Kit, to differentiate cells that are dead due to necrosis or apoptosis?
1 answer-
When using a kinetic study (various time points), you can show the progression of the cells from viable (annexin V FITC negative, PI negative), to annexin FITC positive, PI negative (membrane flip) to annexin V FITC positive, PI positive (dead). If there are cells that are double positive when starting, it is not possible to guarantee that the cell death occurred due to apoptosis with this assay.
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