ARP 101

ARP 101 is a selective MMP-2 inhibitor with IC50 value of 0.81nM.
MMP-2 is an enzyme and involved in the breakdown of extracellular matrix in normal physiological processes, such as embryonic development, reproduction and tissue remodeling, as well as in disease processes, such as arthritis and metastasis [1].
ARP 101 shows inhibition of fibrosarcoma HT1080 cell growth in vitro. ARP 101 has shown ~250 fold selectivity of MMP-2 over MMP-1 and ~100 fold of MMP-9 over MMP-1 [2]. ARP 101 proved to be 15.3 and 24.7 times more potent than compound a and CGS 27023A on MMP-2, maintaining a different selectivity and potency of MMP-2/MMP-1 compared with inhibitor Prinomastat and CGS 27023A [3].
Reference:
[1]. Page-McCaw A, Ewald AJ, Werb Z. Matrix metalloproteinases and the regulation of tissue remodelling. Nat Rev Mol Cell Biol, 2007, 8(3): 221-33.
[2]. Rossello A, Nuti E, Orlandini E, et al. New N-arylsulfonyl-N-alkoxyaminoacetohydroxamic acids as selective inhibitors of gelatinase A (MMP-2). Bioorg Med Chem, 2004, 12(9): 2441-50.
[3]. Tuccinardi T, Martinelli A, Nuti E, et al. Amber force field implementation, molecular modelling study, synthesis and MMP-1/MMP-2 inhibition profile of (R)- and (S)-N-hydroxy-2-(N-isopropoxybiphenyl-4-ylsulfonamido)-3 methylbutanamides. Bioorg Med Chem, 2004, 14: 4260-4276.