Selective AMPA receptor positive allosteric modulator (IC50 values are 0.15, 0.21, 1.66 and 5.65 μM for GluA2i, GluA4i, GluA3i and GluA1i respectively). Potentiates glutamate and AMPA-evoked currents in pre frontal cortex (PFC) pyramidal neurons in vitro. Has no effect on NMDA- or kainate-evoked currents; also has no effect on K+ or Na+ ion channels. Potentiates PFC glutamatergic synaptic transmission in vitro and in vivo. Induces neurite growth in combination with (S)-AMPA (Cat. No. 0254) in SH-SY5Y human neuroblastoma cells in vitro. Also reduces MPTP-induced toxicity in mice. Brain penetrant.
|Storage||Store at +4°C|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions
The following data is based on the product molecular weight 342.46. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||2.92 mL||14.6 mL||29.2 mL|
|5 mM||0.58 mL||2.92 mL||5.84 mL|
|10 mM||0.29 mL||1.46 mL||2.92 mL|
|50 mM||0.06 mL||0.29 mL||0.58 mL|
References are publications that support the biological activity of the product.
O'Neill et al (2004) Neurotrophic actions of the novel AMPA receptor potentiator, LY404187, in rodent models of Parkinson's disease. Eur.J.Pharmacol. 486 163 PMID: 14975705
Quirk and Nisenbaum (2002) LY404187: a novel positive allosteric modulator of AMPA receptors. CNS Drug Rev. 8 255 PMID: 12353058
Voss et al (2007) Molecular mechanisms of neurite growth with AMPA receptor potentiation. Neuropharmacology 52 590 PMID: 17101156
Baumbarger et al (2001) Positive modulation of alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptors in prefrontal cortical pyramidal neurons by a novel allosteric potentiator. J.Pharmacol.Exp.Ther. 298 86 PMID: 11408529
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Literature in this Area
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The key feature of drug addiction is the inability to stop using a drug despite clear evidence of harm. This poster describes the brain circuits associated with addiction, and provides an overview of the main classes of addictive drugs and the neurotransmitter systems that they target.
Alzheimer's disease (AD) is a degenerative brain disease and the most common cause of dementia, affecting approximately 47 million people worldwide. Updated in 2015, this poster summarizes the structural and functional changes observed in the progression of this neurodegenerative disease, as well as classic AD drug targets.
Major depressive disorder is characterized by depressed mood and a loss of interest and/or pleasure. Updated in 2015 this poster highlights presynaptic and postsynaptic targets for the potential treatment of major depressive disorder, as well as outlining the pharmacology of currently approved antidepressant drugs.
Learning & Memory Poster
Recognition memory enables us to make judgements about whether or not we have encountered a particular stimulus before. This poster outlines the cellular mechanisms underlying recognition memory and its links to long-term depression, as well as the use of pharmacological intervention to assess the role of neurotransmitters in recognition memory.
Peripheral sensitization is the reduction in the threshold of excitability of sensory neurons that results in an augmented response to a given external stimulus. This poster outlines the excitatory and inhibitory signaling pathways involved in modulation of peripheral sensitization. The role of ion channels, GPCRs, neurotrophins, and cytokines in sensory neurons are also described.
Parkinson's disease (PD) causes chronic disability and is the second most common neurodegenerative condition. This poster outlines the neurobiology of the disease, as well as highlighting current therapeutic treatments for symptomatic PD, and emerging therapeutic strategies to delay PD onset and progression.
Schizophrenia is a debilitating psychiatric disorder that affects 1% of the worldwide population. This poster describes the neurobiology of Schizophrenia, as well as highlighting the genetic and environmental factors that play a fundamental role in the etiology of the disease. The current and emerging drug targets are also discussed.