A cell-permeable hydroxynaphthalenylthioacetate that targets Mcl-1 BH3-binding groove and selectively competes against 8 nM FITC-AHA-BIM_142-161 for Mcl-1, but not Bcl-xL, binding (IC₅₀ = 310 nM vs >40 µM; [Mcl-1] & [Bcl-xL] = 6.25 nM), displaying little inhibitory potency toward CYP450 isoforms 1A2/2D6/3A4/2C9 (IC₅₀ = >10 µM). Antiproliferation potencies against 2 murine lymphoma cell lines (GI₅₀ = 300 nM/ MCl1-1780 & 1.1 µM/Bcl2-1863) and 11 human cancer lines of various origins (GI₅₀ from 1.6 to 25 µM) correlate well with intracellular BH3 domain peptide-binding capacity. Likewise, greater apoptosis induction is observed in MCl1-1780 than the highly Bcl-2/Bcl-xL primed Bcl2-1863 cultures upon drug treatment. Stability studies using murine and human liver microsome preparations reveal t_1/2 values of 40 min and 55 min, respectively.

Cell permeable: yes

Primary Target
Mcl-1

Reversible: yes

Packaged under inert gas

Richard, D.J., et al. 2013. Bioorg. Med. Chem.21, 6642.

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Toxicity: Standard Handling (A)