LY-411575

Names

[ CAS No. ]:
209984-57-6

[ Name ]:
LY-411575

[Synonym ]:
N2-((2S)-2-(3,5-difluorophenyl)-2-hydroxyethanoyl)-N1-((7S)-5-methyl-6-oxo-6,7-dihydro-5H-dibenzo(b,d)azepin-7-yl)-L-alaninamide
Benzeneacetamide, N-[(1S)-2-[[(7S)-6,7-dihydro-5-methyl-6-oxo-5H-dibenz[b,d]azepin-7-yl]amino]-1-methyl-2-oxoethyl]-3,5-difluoro-α-hydroxy-, (αS)-
N-[(2S)-2-(3,5-Difluorophenyl)-2-hydroxyacetyl]-N-[(7S)-5-methyl-6-oxo-6,7-dihydro-5H-dibenzo[b,d]azepin-7-yl]-L-alaninamide
(2S)-2-[[(2S)-2-(3,5-difluorophenyl)-2-hydroxyacetyl]amino]-N-[(7S)-5-methyl-6-oxo-7H-benzo[d][1]benzazepin-7-yl]propanamide
cc-581
LY411575

Biological Activity

[Description]:

LY-411575 is a potent γ-secretase inhibitor with IC50 of 0.078 nM/0.082 nM (membrane/cell-based), and also inhibits Notch S3 cleavage with IC50 of 0.39 nM.

[Related Catalog]:

Signaling Pathways >> Neuronal Signaling >> γ-secretase

Signaling Pathways >> Stem Cell/Wnt >> γ-secretase

Signaling Pathways >> Stem Cell/Wnt >> Notch

Research Areas >> Neurological Disease

[Target]

IC50: 0.078 nM (γ-secretase in membrane), 0.082 nM (γ-secretase cell-based), 0.39 nM (Notch S3 cleavage cell-based)[1]

[In Vitro]

LY-411,575 blocks Notch activation, and results in apoptosis in primary and immortalized KS cells. LY-411,575 (500 μM) induces G2/M growth arrest SLK cells[2]. LY411575 treatment significantly decreases the amounts of intracellular HCV RNA with IC50 of 0.56 ± 0.20 μM and extracellular HCV particles. LY411575 (0-40 nM) alone or in combination with daclatasvir (0-40 pM) decreases supernatant infectious titers in a dose-dependent manner, and is synergistic regarding production of infectious virus. LY411575 (10 µM) treatment impairs ROS production in HCVcc-infected cells[4]. LY411575 significantly attenuates EMT by inhibiting the Notch signaling activation in vitro[5].

[In Vivo]

LY-411,575 (10 mg/kg) decreases brain and plasma Aβ40 and -42 robustly when chronically administered to TgCRND8 mice[1]. LY411,575 reduces cortical Aβ40 in young transgenic CRND8 mice (ED50 appr 0.6 mg/kg) and produces significant thymus atrophy and intestinal goblet cell hyperplasia at higher doses (>3 mg/kg). The extent of intestinal goblet cell hyperplasia induced by LY411,575 (10 mg/kg) is similar in young and aged mice[3]. LY411575 inhibits mouse proliferative vitreoretinopathy (PVR) formation in vivo[5].

[Animal admin]

Mice from the aged cohort (16-26 months old) are either retired breeders or experimentally naive mice. Before dosing begin and for the duration of the study, mice are singly housed with a plastic igloo and nesting material. Mice are sacrificed 2 to 4 h after their final dosing. For oral dosing, LY411,575 and LY-D are formulated as 10 mg/mL solutions and diluted 1:10 with 0.4% methycellulose. In the case of subcutaneous dosing, the 10 mg/mL stock solution is diluted 1:10 with 20% hydroxyl-propyl-β-cyclodextrin. If necessary, serial dilutions are made from the 1 mg/mL solution using the appropriate 1:10 vehicle. The dosing volume is 10 mL/kg. After oral administration of 10 mg/kg LY411,575, inhibition of plasma Aβ is still significant 24, but not 48, h after dosing, so in an effort to maintain continuous γ-secretase inhibition, LY411,575 and LY-D are dosed once per day in all studies.

[References]

[1]. Wong GT, et al. Chronic treatment with the gamma-secretase inhibitor LY-411,575 inhibits beta-amyloid peptide production and alters lymphopoiesis and intestinal cell differentiation. J Biol Chem. 2004 Mar 26;279(13):12876-82.

[2]. Curry CL, et al. Gamma secretase inhibitor blocks Notch activation and induces apoptosis in Kaposi's sarcoma tumor cells. Oncogene. 2005 Sep 22;24(42):6333-44.

[3]. Hyde LA, et al. Studies to investigate the in vivo therapeutic window of the gamma-secretase inhibitor N2-[(2S)-2-(3,5-difluorophenyl)-2-hydroxyethanoyl]-N1-[(7S)-5-methyl-6-oxo-6,7-dihydro-5H-dibenzo[b,d]azepin-7-yl]-L-alaninamide (LY411,575) in the CRND8 mouse. J Pharmacol Exp Ther. 2006 Dec;319(3):1133-43.

[4]. Otoguro T, et al. Inhibitory effect of presenilin inhibitor LY411575 on maturation of hepatitis C virus core protein, production of the viral particle and expression of host proteins involved in pathogenicity. Microbiol Immunol. 2016 Nov;60(11):740-753

[5]. Zhang J, et al. Notch signaling modulates proliferative vitreoretinopathy via regulating retinal pigment epithelial-to-mesenchymal transition. Histochem Cell Biol. 2017 Mar;147(3):367-375.

[Related Small Molecules]

DAPT (GSI-IX) | RO4929097 | Crenigacestat(LY3039478) | YO-01027 | PF-3084014 | L-685,458 | Tangeretin | FLI-06 | MK-0752 | Avagacestat | IMR-1 | BMS-983970 | Semagacestat(LY450139) | Z-Ile-Leu-aldehyde | E 2012

Chemical & Physical Properties

[ Density]:
1.4±0.1 g/cm3

[ Boiling Point ]:
836.0±65.0 °C at 760 mmHg

[ Melting Point ]:
328.47°C

[ Molecular Formula ]:
C₂₆H₂₃F₂N₃O₄

[ Molecular Weight ]:
479.475

[ Flash Point ]:
459.4±34.3 °C

[ Exact Mass ]:
479.165649

[ PSA ]:
98.74000

[ LogP ]:
4.75

[ Appearance of Characters ]:
white to beige

[ Vapour Pressure ]:
0.0±3.2 mmHg at 25°C

[ Index of Refraction ]:
1.652

[ Storage condition ]:
?20°C

[ Water Solubility ]:
DMSO: soluble5mg/mL, clear

MSDS

Click to get detail MSDS

Safety Information

[ Safety Phrases ]:
24/25

[ RIDADR ]:
NONH for all modes of transport

[ HS Code ]:
29337900

Articles

Targeting both Notch and ErbB-2 signalling pathways is required for prevention of ErbB-2-positive breast tumour recurrence.

Br. J. Cancer 105 , 796-806, (2011)

We reported that Notch-1, a potent breast oncogene, is activated in response to trastuzumab and contributes to trastuzumab resistance in vitro. We sought to determine the preclinical benefit of combin...