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LDN193189 Hydrochloride CAS: 1062368-62-0

Category: Inhibitors
Product Name: LDN193189 Hydrochloride
Cat No: I000317
CAS No: 1062368-62-0
Related CAS: 1062368-24-4 (free base)
Synonyms: 4-[6-(4-piperazin-1-ylphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline tetrahydrochloride
Molecular Formula: C25H22N6 HCl
Molecular Weight: 443.0
Solubility: Water 20 mg/ml
Target: SMAD
IC50: 5 nM/30 nM (ALK2/ALK3) [1]
Storage: Store at -20°C
CAS 1062368-62-0,LDN193189 Hydrochloride
  • Description

LDN193189 4Hcl(DM 3189) is a selective BMP signaling inhibitor, inhibits the transcriptional activity of the BMP type I receptors ALK2 and ALK3 with IC50 of 5 nM and 30 nM, respectively, exhibits 200-fold selectivity for BMP versus TGF-β.
IC50 value: 5 nM/30 nM (ALK2/ALK3) [1]
Target: ALK2/3
in vitro: LDN193189 potently inhibits BMP4-mediated Smad1, Smad5 and Smad8 activation with IC50 of 5 nM, and efficiently inhibits transcriptional activity of the BMP type I receptors ALK2 and ALK3 with IC50 of 5 nM and 30 nM, respectively. Furthermore, LDN193189 also shows the inhibitory effect on the transcriptional activity induced by either constitutively active ALK2R206H or ALK2Q207D mutant proteins [1]. A recent study shows that LDN-193189 blocks the production of reactive oxygen species induced by oxidized LDL during atherogenesis in human aortic endothelial cells [4].
in vivo: In conditional caALK2-transgenic mice with Ad.Cre on on postnatal day 7 (P7), LDN-193189 (3 mg/kg i.p) leads to mild calcifications surrounding the left tibia and fibula first visible at P13, and prevents radiographic lesions at P15 without causing weight loss or growth retardation, spontaneous fractures, decreased bone density or behavioral abnormalities [1]. LDN193189 dorsalizes zebrafish embryos by inhibiting signaling pathways induced by bone morphogenetic protein (BMP)6 without effect on vascular development [2]. In PCa-118b tumor-bearing mice, LDN-193189 treatment attenuates tumor growth and reduces bone formation in the tumors [3]. In LDL receptor-deficient (LDLR-/-) mice, LDN-193189 potently inhibits development of atheroma. Moreover, LDN-193189 also exhibits the inhibitory effects on associated vascular inflammation, osteogenic activity, and calcification [4].

  • Spec

Appearance:A crystalline solid

  • References

[1]. Yu PB, et al. BMP type I receptor inhibition reduces heterotopic [corrected] ossification. Nat Med, 2008, 14(12), 1363-1369.
[2]. Cannon JE, et al. Intersegmental vessel formation in zebrafish: requirement for VEGF but not BMP signalling revealed by selective and non-selective BMP antagonists. Br J Pharmacol, 2010, 161(1), 140-149.
[3]. Lee YC, et al. BMP4 promotes prostate tumor growth in bone through osteogenesis. Cancer Res, 2011, 71(15), 5194-5203.
[4]. Derwall M, et al. Inhibition of bone morphogenetic protein signaling reduces vascular calcification and atherosclerosis. Arterioscler Thromb Vasc Biol, 2012, 32(3), 613-622.

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