H-1152 dihydrochloride 是一种膜通透的，选择性的 ROCK 抑制剂，Ki 值为 1.6 nM，对 ROCK2 的 IC50 值为 12 nM。
H-1152 dihydrochloride is an inhibitor of Rho-kinase, with an IC
50
of 12 nM for ROCK2. H-1152 (H-1152P) also shows less inhibitory activities against CaMKII, PKG, AuroraA, PKA, Src, PKC, MLCK, Abl, EGFR, MKK4, GSK3α, AMPK, and P38α, with IC
50
s of 0.180, 0.360, 0.745, 3.03, 3.06, 5.68, 28.3, 7.77, 50.0, 16.9, 60.7, 100, and 100 μM, respectively. H-1152 potently inhibits Rho kinase, with a K
i
of 1.6 nM, and slightly suppresses PKA, PKC and MLCK, with K
i
s of 0.63, 9.27, and 10.1 μM, respectively. H-1152 (0.1-10 µM) highly inhibits MARCKS phosphorylation, with an IC
50
value of 2.5 µM in LPA-treated cells, but shows no such obvious effects in PDBu-treated cells. H-1152 (0.5-10 μM) cuases no decreased neuronal survival. H-1152 (1, 5 or 10 μM) also exerts no alterations in the ratios of different neuronal morphologies. Furthermore, H-1152 (10 μM) increases neurite length in both BMP4 and LIF cultures.