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CS1

Cat. No. M8557
CS1 Structure
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Biological Activity

CS1 is a selective and potent inhibitor of topoisomerase IIα (TopoIIα) that potently inhibits a proliferation of cancer cell lines including MDA-MB-231 and A548 cells, with less toxicity than etoposide. CS1 is a nonintercalating topoisomerase IIα (Topo IIα) inhibitor, which stabilizes the DNA-Topo IIα cleavage complex.

Chemical Information
Molecular Weight 252.26
Formula C16H12O3
CAS Number 1448009-94-6
Solubility (25°C) DMSO: 20 mg/mL
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Kim De Veirman, et al. CS1-specific single-domain antibodies labeled with Actinium-225 prolong survival and increase CD8+ T cells and PD-L1 expression in Multiple Myeloma

[2] Casey W Buller, et al. Roles of NK Cell Receptors 2B4 (CD244), CS1 (CD319), and LLT1 (CLEC2D) in Cancer

[3] Joseph D Malaer, et al. 2B4 (CD244, SLAMF4) and CS1 (CD319, SLAMF7) in systemic lupus erythematosus and cancer

[4] Joseph D Malaer, et al. CS1 (SLAMF7, CD319) is an effective immunotherapeutic target for multiple myeloma

[5] Andr Veillette, et al. CS1, a SLAM family receptor involved in immune regulation, is a therapeutic target in multiple myeloma

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