lu103793

Droxinavir Free Base is an experimental protease inhibitor researched by Pharmacia as a treatment for HIV infection.

Cemadotin free base(LU103793 free base) is a novel anti-limiting peptide , an analog of Dolastatin 15, a naturally occurring cytotoxic peptide that blocks mitosis and inhibits microtubules (tubulin) with a Ki of 1 μM. Cemadotin is used in research against cancer.

Cemadotin hydrochloride is the salt from of Cemadotin (free base), also known as, LU103793, a mitosis inhibitor potentially for the treatment of solid tumours. Cemadotin is also a synthetic derivative of Dolastatin 15, an antiproliferative compound which was isolated from the mollusk Dolabella auricularia. Like Dolastatin 15, LU103793 is highly cytotoxic in vitro (IC50 = 0.1 nM). LU103793 inhibits microtubule polymerization in a concentration-dependent manner (IC50 = 7 microM). Treatment with this compound also induced depolymerization of preassembled microtubules. Cell cycle analysis of tumor cell lines treated with LU103793 indicated a block in the G2-M phase.