Valanimycin
Valanimycin is an antibiotic, which inhibits Escherichia coli (BE1121) through interaction with DNA. Valanimycin exhibits cytotoxicity to mouse leukemia L1210, P388/S (doxorubicin (HY-15142A)-sensitive), and P388/ADR (doxorubicin-resistant), with IC50 of 0.79, 2.65, and 1.44 μg/mL, respectively. Valanimycin exhibits antitumor efficacy against ehrlich ascites tumors or L1210 in mice.
For research use only. We do not sell to patients.
- CAS No.: 101961-60-8
- Formula: C7H12N2O3
- Molecular Weight:172.18
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
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Biological Activity
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Chemical Information
- Protocols
- Purity & Documentation
- References
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Biological Activity
Description
Chemical Information
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CAS No. 101961-60-8
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Molecular Weight 172.18
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Formula C7H12N2O3
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SMILES
CC(C)C/[N+]([O-])=N/C(C(O)=O)=C
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Structure Classification
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Initial Source
Streptomyces viridifaciens MG456-hF10
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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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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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Mammalian live/dead viability and cytotoxicity staining
Live/dead viability and cytotoxicity staining assays are based on the simultaneous detection of intracellular esterase activity in metabolically active (viable) cells and membrane integrity loss in non-viable cells. In commonly used dual-staining approaches, membrane-permeant fluorogenic substrates are converted by intracellular esterases into fluorescent products in live cells, while impermeant DNA-binding dyes selectively enter cells with compromised plasma membranes and label nucleic acids in dead or dying cells, enabling discrimination between viable and non-viable populations by fluorescence microscopy or flow cytometry.
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Patient-Derived Xenograft (PDX)
Patient-derived xenograft (PDX) models are generated by engrafting primary human tumor tissue directly into immunodeficient mice, allowing in vivo propagation of patient tumor biology without initial in vitro adaptation. These models are used to preserve key histopathological and molecular characteristics of the original tumor and enable assessment of tumor growth dynamics and therapeutic response in a living organism. The biological readout is tumor engraftment and subsequent growth in the murine host, which reflects the ability of human tumor cells to survive, vascularize, and expand in an immunocompromised microenvironment.
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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.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Valanimycin Related Classifications
HY-126170 Related Classifications
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