Lys05

Lys05 is water soluble salt of Lys01. Lys05 shows potent antitumor activity as a single agent both in vitro and in vivo in multiple human cancer cell lines and xenograft models^[1].

Lys01 and Lys05 produce equivalent dose-dependent increases in the LC3II/LC3I ratio, accumulation of the autophagy cargo protein p62, and identical IC50 values in the MTT assay^[2].

While lower doses of Lys05 are well tolerated and associated with antitumor activity, at the highest dose tested, Lys05 produces Paneth cell dysfunction and intestinal toxicity, similar to what can be observed in mice and humans with genetic defects in the autophagy gene ATG16L1. In two melanoma xenograft models and a colon cancer xenograft model, intermittent high dose Lys05 or chronic daily dosing of Lys05 at lower doses produces significant early blockade of autophagy in vivo, and has single-agent antitumor activity at doses as low as 10 mg/kg i.p. daily^[1].

• Animal Models

  Nu/Nu nude mice

• Dosages

  10 mg/kg, 40 mg/kg, or 80 mg/kg

• Administration

  i.p.