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A cell-permeable pyridylthiazolyl-urea that acts as a potent, ATP site-targeting, Rho Kinase inhibitor (IC50 = 14.5 and 6.2 nM against ROCK1 and ROCK2, respectively), displaying much reduced potency against PKA, PKN1/PRK1, p70S6K/RPS6kB1, AKT1, MRCKa/CDC42BPA (85.5%, 80.5%, 61.9%, 56.0%, and 50.4% inhibition, respectively, by 1 µM RKI-1447) or 15 other kinases. Selectively inhibits ROCK-dependent, but not mTORC2-dependent, cellular phosphorylations (effective conc. 0.1 to 1 µM in MDA-MB-231, MDA-MB-468, and H1299 cultures). Shown to be efficacious in suppressing established tumor expansion in a murine ErbB2 mammary cancer model (200 mg/kg/day i.p.) in vivo.
Catalogue Number
555562
Brand Family
Calbiochem®
Synonyms
1-(3-Hydroxybenzyl)-3-(4-(pyridin-4-yl)thiazol-2-yl)urea, Methanesulfonate, ROCK Inhibitor XIII, 1-(3-Hydroxybenzyl)-3-(4-(pyridin-4-yl)thiazol-2-yl)urea, Mesylate
Note that this data sheet is not lot-specific and is representative of the current specifications for this product. Please consult the vial label and the certificate of analysis for information on specific lots. Also note that shipping conditions may differ from storage conditions.
Revision
12-April-2013 JSW
Synonyms
1-(3-Hydroxybenzyl)-3-(4-(pyridin-4-yl)thiazol-2-yl)urea, Methanesulfonate, ROCK Inhibitor XIII, 1-(3-Hydroxybenzyl)-3-(4-(pyridin-4-yl)thiazol-2-yl)urea, Mesylate
Description
A cell-permeable pyridylthiazolyl-urea that acts as a potent, ATP site-targeting, Rho Kinase inhibitor (IC50 = 14.5 and 6.2 nM against ROCK1 and ROCK2, respectively), displaying much reduced potency against PKA, PKN1/PRK1, p70S6K/RPS6kB1, AKT1, MRCKa/CDC42BPA (85.5%, 80.5%, 61.9%, 56.0%, and 50.4% inhibition, respectively, at 1 µM) and little or no activity against 15 other kinases (IC50 >1 µM). Selectively inhibits ROCK-dependent MLC-2 Ser19 and MYPT-1 Thr696 phosphorylations (effective conc. 0.1 to 1 µM in MDA-MB-231, MDA-MB-468, and H1299 cultures), but not mTORC2-dependent Akt Ser473, PAK-dependent Mek Ser298, or S6K-dependent S6 Ser240/244 phosphorylations (up to 10 µM in MDA-MB-231 cells). Shown to inhibit MDA-MB-231 invasion (by 53% and 85%, respectively, with 1 and 10 µM inhibitor) and anchorage-independent colony formation (IC50 = 709 nM) in vitro and be efficacious in suppressing established tumor expansion in a murine ErbB2 mammary cancer model (8.8% vs. 68.3% average tumor size expansion in 14 days, respectively, with or without treatment; 14 dailly i.p. doses at 200 mg/kg) in vivo.
Form
Yellowish white solid
Intert gas (Yes/No)
Packaged under inert gas
Chemical formula
C₁₆H₁₄N₄O₂S • CH₃SO₃H
Structure formula
Purity
≥98% by HPLC
Solubility
DMSO (100 mg/ml)
Storage
Protect from light
-20°C
Hygroscopic
Do Not Freeze
Ok to freeze
Special Instructions
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.
