Amphimedine
Amphimedine is a polycyclic alkaloid isolated from the marine sponge Amphimedon sp. and belongs to the pyridoindole alkaloid class. Amphimedine has cytotoxic activity and has been studied as an anticancer metabolite along with neoamphimedine. Studies have shown that deoxyamphimedine damages DNA by generating reactive oxygen species, a mechanism different from that of amphimedine.
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- CAS. Nr.: 86047-14-5
- Formel: C19H11N3O2
- Molecular Weight:313.31
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Speicherung:
Please store the product under the recommended conditions in the Certificate of Analysis.
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Biologische Aktivität
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Chemical Information
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Biologische Aktivität
Beschreibung
Chemical Information
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CAS. Nr. 86047-14-5
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Molecular Weight 313.31
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Formel C19H11N3O2
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SMILES
O=C(C1=NC=CC2=C3C=CC=CC3=NC(C4=CC5=O)=C12)C4=CN5C
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Structure Classification
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Initial Source
Xestospongia sponges
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Versand
Room temperature in continental US; may vary elsewhere.
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Speicherung
Please store the product under the recommended conditions in the Certificate of Analysis.
Protokoll
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Cell Cytotoxicity Assay
Cytotoxicity assays are usually based on the assessment of cell membrane damage, which can also be indirectly detected by measuring cell viability. Detection methods include MTT assay, CKK-8 assay, LDH assay and ATP assay, etc.
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ROS/oxidative-stress fluorescent staining
ROS/oxidative-stress fluorescent staining uses cell-permeant fluorogenic probes that become fluorescent after oxidation inside cells or tissues; commonly used examples include DCFH-DA/DCFDA for broad cellular oxidant detection, DHE for superoxide-related signal detection, MitoSOX for mitochondrial superoxide-related signal detection, and CellROX probes for oxidative-stress-associated fluorescence readouts. The assay detects probe oxidation rather than a single ROS species unless the probe and analysis method have been chemically validated for that species. DCFH-DA enters cells, is deacetylated by intracellular esterases to DCFH, and produces fluorescent DCF after oxidation, so the readout is used as an operational measure of total cellular oxidative stress rather than a species-specific ROS measurement. DHE and MitoSOX can report superoxide-related oxidation, but red fluorescence alone can include non-specific ethidium-like oxidation products; HPLC or optimized spectral approaches are
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Cell Viability Determination by MTT Colorimetric Assay
The following protocol uses the MTT colorimetric assay as a classic literature-established method for assessing cell viability/metabolic activity in cultured mammalian cells. MTT[3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] is reduced by metabolically active cells to a colored formazan product; the amount of formazan is quantified spectrophotometrically and provides an indirect measure of metabolically active viable cells. Importantly, MTT reduction reflects cellular oxidoreductase/metabolic activity rather than an absolute direct count of living cells, so changes in cellular metabolism can alter the signal independently of cell number.
Reinheit & Dokumentation
Verweise
Calculators
Konzentration (Stammlösung) × Volumen (Stammlösung) = Konzentration (Ziellösung) × Volumen (Ziellösung)
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