AlDeSense AM
AlDeSense AM is a cell-permeable ALDH1A1-selective fluorescent reporter. AlDeSense AM is oxidized by ALDH1A1, which eliminates photoinduced electron transfer quenching and enhances the fluorescent signal. AlDeSense AM can be used to detect cells with cancer stem cell properties, as well as to monitor the plasticity of cancer stem cells in cell culture systems and animal models. AlDeSense AM is applicable to the study of cancers associated with cancer stem cells, including chronic myeloid leukemia, melanoma, and breast cancer.
For research use only. We do not sell to patients.
- CAS No.: 2243148-62-9
- Formula: C24H16F2O6
- Molecular Weight:438.38
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
In Vitro
AlDeSense AM (1.5-2 μM; 30 min) selectively labels human chronic myeloid leukemia K562 cells with active ALDH1A1, which correspond to the CD34+/CD38−/CD133+ leukemia stem cell population[1].
AlDeSense AM (2 μM; 1 h) detects elevated ALDH1A1 activity in MDA-MB-231 breast cancer mammospheres (cancer stem cell-enriched), and the fluorescent signal decreases as the mammospheres differentiate over 36 h[1].
The fluorescence signal of AlDeSense AM (2 μM; 1 h) in CSC-enriched B16F0 e-CSC is 11.3-fold higher than that in non-CSC B16F0 cells, confirming elevated ALDH1A1 activity in e-CSC[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
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Cell Line:K562 human chronic myeloid leukemia cells
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Concentration:1.5 μM (flow cytometry staining); 2 μM (confocal imaging staining)
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Incubation Time:30 min at room temperature (confocal imaging staining)
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Result:Identified a population of brightly fluorescent cells corresponding to the CD34+/CD38-/CD133+ leukemic stem cell profile.
Showed a small population of highly fluorescent cells via confocal imaging.
Completely abolished the fluorescence signal after ALDH1A1 siRNA knockdown.
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Cell Line:MDA-MB-231 breast cancer mammospheres (CSC-enriched) and differentiating mammospheres
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Concentration:2 μM
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Incubation Time:1 h at room temperature (at 1, 6, 12, 24, 36 h time points during differentiation)
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Result:Exhibited 3-fold brighter fluorescence in freshly isolated mammospheres compared to control-stained mammospheres.
Gradually decreased fluorescence signal over 36 h of differentiation.
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Cell Line:B16F0 murine melanoma e-CSCs (CSC-enriched via spiral-patterned hydrogel culture) and non-CSCs (standard culture)
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Concentration:2 μM
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Incubation Time:1 h at room temperature
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Result:Showed 11.3-fold brighter fluorescence in e-CSCs than in non-CSCs.
Showed 9.0-fold brighter fluorescence in e-CSCs than in e-CSCs stained with control reagent.
Colocalized with the CD271 melanoma stem cell marker in e-CSCs.
In Vivo
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:C57BL/6J (female, 6 to 8 weeks old)[1]
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Dosage:15 μM
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Administration:lung perfusion; single dose
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Result:Produced a mean fluorescence signal of ~1×1011 a.u.
in lungs with e-CSC metastases.
Showed a significantly higher mean fluorescence signal (~1×1011 a.u.) than the ~7×1010 a.u.
measured in lungs with non-CSC metastases.
Demonstrated significantly higher fluorescence in e-CSC metastases than e-CSC metastases treated with Ctrl-AlDeSense AM.
Chemical Information
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CAS No. 2243148-62-9
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Molecular Weight 438.38
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Formula C24H16F2O6
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SMILES
CC(OCOC1=C(C=C2C(OC3=CC(C(F)=CC3=C2C4=CC=C(C=C4C)C=O)=O)=C1)F)=O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Protocols
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Breast Cancer Modeling
Breast cancer is a heterogeneous cancer, and it has been distinguished into four subtypes: luminal A, luminal B, HER2-positive and basal-like. Molecular mutations, epigenetic alterations, hormone exposure and immune microenvironment are related to the progression of breast cancer.
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Directly Induced Neuron Culture
Directly induced neuron culture converts somatic cells, most commonly fibroblasts, into induced neurons without passing through a pluripotent or neural progenitor stage; classic evidence shows that mouse fibroblasts can be converted by Ascl1, Brn2/Pou3f2, and Myt1l, human fibroblasts can be converted by defined neuronal transcription factors, and human fibroblasts can also be converted by miR-9/9-124 with neurogenic or subtype-specifying transcription factors. The readout is acquisition of neuronal identity and function, assessed by neuronal morphology, neuronal markers such as Tuj1/βIII-tubulin, MAP2, synapsin, and subtype markers when relevant, together with functional assays such as action-potential firing, synaptic activity, and electrophysiology.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Keywords
- AlDeSense AM
- 2243148-62-9
- Fluorescent Dye
- Aldehyde Dehydrogenase (ALDH)
- melanoma
- breast cancer
- CD34+/CD38-/CD133+ leukemic stem cell population
- C57BL/6J mice
- chronic myeloid leukemia
- MDA-MB-231 breast cancer mammospheres
- cancer stem cells
- B16F0 e-CSCs
- K562 human chronic myeloid leukemia cells
- ALDH1A1
- Inhibitor
- inhibitor
- inhibit