Voreloxin hydrochloride

SKU: orb1218628

Description

Voreloxin hydrochloride is a potent inhibitor of Topoisomerase II with broad-spectrum anti-tumor activity.

Images & Validation

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Key Properties

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CAS Number	175519-16-1
MW	437.9
Purity	>98% (HPLC)
Formula	C₁₈H₂₀ClN₅O₄S
SMILES	[H]Cl.O=C(C1=CN(C2=NC=CS2)C3=C(C=CC(N4C[C@H](OC)[C@@H](NC)C4)=N3)C1=O)O
Target	Apoptosis
Solubility	DMSO:20 mg/ml (45.67 mM)

Bioactivity

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In Vivo

Voreloxin (20 mg/kg, i. v.) alone results in 80% reduction in bone marrow cellularity of CD-1 mice by administration one dose every 4 days repeated twice (q4d ×2). voreloxin at 10 mg/kg in combination with cytarabine causes ablation of the marrow, dilation of sinusoids, and infiltration of adipocytes in mice. Voreloxin (20 mg/kg, i. v.) combined with cytarabine causes a reversible decrease in myeloid and lymphoid cells in bone marrow and peripheral blood CD-1 mice. voreloxin (10 mg/kg, q4d ×2) and cytarabine in combination causes reversible neutropenia with a more modest impact on platelets CD-1 mice.

In Vitro

Voreloxin Hydrochloride is a first-in-class topoisomerase II poison and inhibitor that intercalates DNA and induces site-selective DNA DSB, G2 arrest, and apoptosis. Voreloxin (0.1-20 μM) inhibits topoisomerase II activity and induces site-selective DNA DSB in CCRF-CEM cells. Voreloxin (0.11, 0.33, 1, 3 μM) induces G2 arrest partially through topoisomerase II in A549 lung cancer cell line. Voreloxin cytotoxic activity requires DNA intercalation. However, Voreloxin (1-9 μM) does not generate significant levels of ROS. Voreloxin has potent cytotoxic activity in AML cell lines MV4-11 and HL-60, with IC50s of 95 ± 8 nM and 884 ± 114 nM, respectively. Voreloxin in combination with cytarabine shows additive or synergistic activity in acute leukemia cell lines. Voreloxin is active on the primary acute myeloid leukemia (AML) with a mean LD50 of 2.3 μM. The LD50 for voreloxin in myeloid cell lines NB4 and HL-60 is 0.59 μM ± 0.25 μM. Voreloxin causes accumulation of cells in the S and G2 phases of the cell cycle and acts on topoisomerase II.

Storage & Handling

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Storage	Storage temperature: -20°C. Stability: ≥ 2 years
Expiration Date	12 months from date of receipt.
Disclaimer	For research use only

Alternative Names

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Vosaroxin | SNS-595 hydrochloride

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Gene Symbol

Apoptosis

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