GSK-3 inhibitor 1 - CAS 603272-51-1
Catalog number: 603272-51-1
Category: Inhibitor
Not Intended for Therapeutic Use. For research use only.
Molecular Formula:
Molecular Weight:
GSK-3 inhibitor 1 is a potent GSK-3 inhibitor.
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1.Opposing actions of the synapse-associated protein of 97-kDa molecular weight (SAP97) and Disrupted in Schizophrenia 1 (DISC1) on Wnt/β-catenin signaling.
Boccitto M1, Doshi S2, Newton IP3, Nathke I3, Neve R4, Dong F5, Mao Y5, Zhai J6, Zhang L6, Kalb R7. Neuroscience. 2016 Mar 26;326:22-30. doi: 10.1016/j.neuroscience.2016.03.048. [Epub ahead of print]
It has been suggested that synapse-associated protein of 97-kDa molecular weight (SAP97) is a susceptibility factor for childhood and adult neuropsychiatric disorders. SAP97 is a scaffolding protein that shares direct and indirect binding partners with the Disrupted in Schizophrenia 1 (DISC1) gene product, a gene with strong association with neuropsychiatric disorders. Here we investigated the possibility that these two proteins converge upon a common molecular pathway. Since DISC1 modifies Wnt/β-catenin signaling via changes in glycogen synthase kinase 3 beta (GSK3β) phosphorylation, we asked if SAP97 impacts Wnt/β-catenin signaling and GSK3β phosphorylation. We find that SAP97 acts as inhibitor of Wnt signaling activity and can suppress the stimulatory effects of DISC1 on β-catenin transcriptional activity. Reductions in SAP97 abundance also decrease GSK3β phosphorylation. In addition, we find that over expression of DISC1 leads to an increase in the abundance of SAP97, by inhibiting its proteasomal degradation.
2.BCR signaling inhibitors differ in their ability to overcome Mcl-1-mediated resistance of CLL B cells to ABT-199.
Bojarczuk K1, Sasi BK1, Gobessi S1, Innocenti I2, Pozzato G3, Laurenti L2, Efremov DG4. Blood. 2016 Apr 19. pii: blood-2015-10-675009. [Epub ahead of print]
The Bcl-2 antagonist ABT-199 has demonstrated promising clinical activity in patients with CLL. ABT-199 is strongly cytotoxic against unstimulated peripheral blood CLL cellsin vitro, but is much less effective against CLL cells that have received survival signals from the microenvironment. In particular, stimulation of CLL cells with CD40L results in substantial resistance that is mediated by induction of the antiapoptotic Bcl-2 family proteins Bcl-xLand Bfl-1. In the present study we investigated whether resistance to ABT-199 can be conferred by B-cell receptor (BCR) stimulation, which is another important survival signal from the leukemic microenvironment. We show that sustained BCR stimulation results in significant ABT-199-resistance, which correlates with induction of the antiapoptotic protein Mcl-1 and less consistently with downregulation of proapoptotic Bmf, Hrk and BimEL A major role for Mcl-1 in conferring ABT-199 resistance is additionally supported by knockdown and enforced expression experiments with primary CLL cells.
3.Synthesis of novel oxazolo[4,5-b]pyridine-2-one based 1,2,3-triazoles as Glycogen Synthase Kinase-3β inhibitors with anti-inflammatory potential.
Tantray MA1, Khan I1, Hamid H1, Alam MS1, Umar S2, Ali Y1, Sharma K3. Chem Biol Drug Des. 2016 Jan 25. doi: 10.1111/cbdd.12724. [Epub ahead of print]
A novel series of oxazolo[4,5-b]pyridine-2-one based 1,2,3-triazoles has been synthesized by click chemistry approach and evaluated for in vitro GSK-3β inhibitory activity. Compound 4g showed maximum inhibition with IC50 value of 0.19 μM. Keeping in view the effect of GSK-3β inhibition on inflammation, compounds 4g, 4d, 4f, 4i, 4n and 4q exhibiting significant GSK-3β inhibition were examined for in vivo anti-inflammatory activity in rat-paw edema model. The compounds 4g, 4d, 4f and 4i showed pronounced in vivo anti-inflammatory activity (76.36, 74.54, 72.72 and 70.90% respectively after 5 h post-carrageenan administration) and were further found to inhibit the pro-inflammatory mediators viz., NO, TNF-α, IL-1β and IL-6 substantially in comparison to indomethacin, an anti-inflammatory drug as well as SB216763, a GSK-3β inhibitor, reported to exert a similar effect. Histopathology studies confirmed the tolerance of gastric mucosa to these compounds.
4.Investigations on GSK-3β/NF-kB signaling in stress and stress adaptive behavior in electric foot shock subjected mice.
Bali A1, Jaggi AS2. Behav Brain Res. 2016 Apr 1;302:1-10. doi: 10.1016/j.bbr.2016.01.014. Epub 2016 Jan 8.
The present study was designed to explore the role of GSK-3β and NF-kB signaling in electric foot shock-induced stress and stress adaptation. Mice were subjected to foot shocks of 0.5mA intensity and 1s duration of 1h to produce acute stress. Animals were exposed to the same stressor for 5 days to induce stress adaptation. The behavioral alterations were assessed using the actophotometer, hole board, open field and social interaction tests. The serum corticosterone levels were assessed as a marker of the HPA axis. The levels of total GSK-3β, p-GSK-3β-S9 and p-NF-kB were determined in the hippocampus, frontal cortex and amygdala. Acute electric foot shock stress produced behavioral and biochemical changes; decreased the levels of p-GSK-3β-S9, produced no change in total GSK-3β levels and increased p-NF-kB levels in the brain. However, repeated exposure of foot shock stress restored the behavioral and biochemical changes along with normalization of p-GSK-3β-S9 and p-NF-kB levels.
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