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Homoharringtonine is an alkaloid originally isolated from C. harringtonia and a homolog of harringtonine (Item No. 15361) that has diverse biological activities including protein synthesis inhibitory, antiviral, antiparasitic, and anticancer properties.{42189} Homoharringtonine inhibits the chain elongation phase of translation in eukaryotes.{42190} It inhibits diphenylalanine formation by rabbit reticulocyte and human placental ribosomes in cell-free assays and binds to human 80S ribosomes (Kd = 39 nM). Homoharringtonine is active against coronaviruses, reducing the viral load in vitro and in vivo and prevents severe symptoms in porcine and chicken models of porcine epidemic diarrhea virus (PEDV) and Newcastle disease virus (NDV), respectively.{53654} It reduces the infectious virus yield and viral RNA copy numbers in the culture supernatant of Vero E6 cells infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (EC50s = 2.55 and 2.14 µM, respectively).{53655} It also inhibits the growth of P. falciparum in cultured in human erythrocytes (IC50 = 4 nM).{42191} Homoharringtonine is cytotoxic and inhibits the proliferation of Jurkat acute T cell leukemia (IC50 = 9 nM) and K562 chronic myelogenous leukemia (CML) cells (IC50 = 408 ?g/ml).{42192,42193} In vivo, it decreases the number of peripheral leukemia stem cells and increases survival in CML and B cell acute lymphoblastic leukemia (B-ALL) mouse models when administered at a dose of 0.5 mg/kg.{42194} Formulations containing homoharringtonine have been used in the treatment of CML in patients with resistance and/or intolerance to two or more tyrosine kinase inhibitors.
Territorial Availability: Available through Bertin Technologies only in France
| Size | 1 mg, 10 mg, 5 mg |
|---|---|
| Shipping | dry ice |
| CAS number | 26833-87-4 |
| Molecular formula | C29H39NO9 |
| Smiles | O=C(OC)C[C@@](CCCC(C)(O)C)(O)C(O[C@H]1[C@](C(C=C(OCO2)C2=C3)=C3CCN4CCC5)([H])[C@]45C=C1OC)=O |
| Molecular weight | 545,6 |
| Custom code | 2903.99 |
| Formulation | A crystalline solid |
| Purity | ≥98% |
| UNSPSC code | 12352100 |
Cayman Chemical’s mission is to help make research possible by supplying scientists worldwide with the basic research tools necessary for advancing human and animal health. Our utmost commitment to healthcare researchers is to offer the highest quality products with an affordable pricing policy.
Our scientists are experts in the synthesis, purification, and characterization of biochemicals ranging from small drug-like heterocycles to complex biolipids, fatty acids, and many others. We are also highly skilled in all aspects of assay and antibody development, protein expression, crystallization, and structure determination.
Over the past thirty years, Cayman developed a deep knowledge base in lipid biochemistry, including research involving the arachidonic acid cascade, inositol phosphates, and cannabinoids. This knowledge enabled the production of reagents of exceptional quality for cancer, oxidative injury, epigenetics, neuroscience, inflammation, metabolism, and many additional lines of research.
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ISO/IEC 17025:2005
ISO Guide 34:2009
Cayman is a leader in the field of emerging drugs of abuse, providing high-purity Schedule I-V Controlled Substances to federally-licensed laboratories and qualified academic research institutions for forensic analyses. We are certified by ACLASS Accreditation Services with dual accreditation to ISO/IEC 17025:2005 and ISO Guide 34:2009.
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