MT-7716

Last updated
MT-7716
MT-7716.svg
Names
IUPAC name
2-[3-[1-[(1R)-1,2-Dihydroacenaphthylen-1-yl]piperidin-4-yl]-2-oxobenzimidazol-1-yl]-N-methylacetamide
Identifiers
PubChem CID
Properties
C27H28N4O2
Molar mass 440.547 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

MT-7716 is an experimental opioid drug that could potentially be used in the treatment of alcohol addiction.

Contents

Mechanism of action

Unlike most opioids, MT-7716 does not appear to act through delta, kappa and mu opioid receptors, but instead is an agonist of the nociceptin receptor. [1]

Alcohol addiction

A study has shown that MT-7716 was able to decrease alcohol self-administration and reduce alcohol withdrawal symptoms in rats. [2]

Another study was also able to show similar results, in addition to demonstrating MT-7716's ability to suppress stress-induced alcohol seeking. [3]

Related Research Articles

Dynorphins (Dyn) are a class of opioid peptides that arise from the precursor protein prodynorphin. When prodynorphin is cleaved during processing by proprotein convertase 2 (PC2), multiple active peptides are released: dynorphin A, dynorphin B, and α/β-neoendorphin. Depolarization of a neuron containing prodynorphin stimulates PC2 processing, which occurs within synaptic vesicles in the presynaptic terminal. Occasionally, prodynorphin is not fully processed, leading to the release of "big dynorphin". "Big dynorphin" is a 32-amino acid molecule consisting of both dynorphin A and dynorphin B.

<span class="mw-page-title-main">Opioid antagonist</span> Receptor antagonist that acts on one or more of the opioid receptors

An opioid antagonist, or opioid receptor antagonist, is a receptor antagonist that acts on one or more of the opioid receptors.

<span class="mw-page-title-main">Quinpirole</span> Chemical compound

Quinpirole is a psychoactive drug and research chemical which acts as a selective D2 and D3 receptor agonist. It is used in scientific research. Quinpirole has been shown to increase locomotion and sniffing behavior in mice treated with it. At least one study has found that quinpirole induces compulsive behavior symptomatic of obsessive compulsive disorder in rats. Another study in rats show that quinpirole produces significant THC-like effects when metabolic degradation of anandamide is inhibited, supporting the hypothesis that these effects of quinpirole are mediated by cannabinoid CB1 receptors. Quinpirole may also reduce relapse in adolescent rat models of cocaine addiction.

<span class="mw-page-title-main">Nociceptin</span> Chemical compound

Nociceptin/orphanin FQ (N/OFQ), a 17-amino acid neuropeptide, is the endogenous ligand for the nociceptin receptor. Nociceptin acts as a potent anti-analgesic, effectively counteracting the effect of pain-relievers; its activation is associated with brain functions such as pain sensation and fear learning.

κ-opioid receptor Protein-coding gene in the species Homo sapiens, named for ketazocine

The κ-opioid receptor or kappa opioid receptor, abbreviated KOR or KOP for its ligand ketazocine, is a G protein-coupled receptor that in humans is encoded by the OPRK1 gene. The KOR is coupled to the G protein Gi/G0 and is one of four related receptors that bind opioid-like compounds in the brain and are responsible for mediating the effects of these compounds. These effects include altering nociception, consciousness, motor control, and mood. Dysregulation of this receptor system has been implicated in alcohol and drug addiction.

<span class="mw-page-title-main">Nociceptin receptor</span> Protein-coding gene in the species Homo sapiens

The nociceptin opioid peptide receptor (NOP), also known as the nociceptin/orphanin FQ (N/OFQ) receptor or kappa-type 3 opioid receptor, is a protein that in humans is encoded by the OPRL1 gene. The nociceptin receptor is a member of the opioid subfamily of G protein-coupled receptors whose natural ligand is the 17 amino acid neuropeptide known as nociceptin (N/OFQ). This receptor is involved in the regulation of numerous brain activities, particularly instinctive and emotional behaviors. Antagonists targeting NOP are under investigation for their role as treatments for depression and Parkinson's disease, whereas NOP agonists have been shown to act as powerful, non-addictive painkillers in non-human primates.

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<span class="mw-page-title-main">MTEP</span> Chemical compound

3-( ethynyl)pyridine (MTEP) is a research drug that was developed by Merck & Co. as a selective allosteric antagonist of the metabotropic glutamate receptor subtype mGluR5. Identified through structure-activity relationship studies on an older mGluR5 antagonist MPEP, MTEP has subsequently itself acted as a lead compound for newer and even more improved drugs.

<span class="mw-page-title-main">JDTic</span> Chemical compound

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<span class="mw-page-title-main">SoRI-9409</span> Chemical compound

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<span class="mw-page-title-main">Central nucleus of the amygdala</span> Nucleus within the amygdala

The central nucleus of the amygdala is a nucleus within the amygdala. It "serves as the major output nucleus of the amygdala and participates in receiving and processing pain information."

<span class="mw-page-title-main">LY-255582</span> Chemical compound

LY-255582 is a phenylpiperidine non-selective opioid antagonist. It has been shown to reduce ethanol consumption in experiments carried out on rats. It has also been shown to reduce food and water consumption in rats.

<span class="mw-page-title-main">Marisa Roberto</span> American neuroscientist

Marisa Roberto is an Italian-American neuroscientist and professor in the Department of Molecular Medicine and Neuroscience at The Scripps Research Institute in La Jolla, California. Roberto is recognized for her contributions to the understanding of alcohol addiction, specifically for her research on the effects of alcohol and neuromodulators on synaptic transmission in the central amygdala, a critical addiction-related brain region.

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References

  1. Kallupi, Marsida; Oleata, Christopher S.; Luu, George; Teshima, Koji; Ciccocioppo, Roberto; Roberto, Marisa (2014). "MT-7716, a novel selective nonpeptidergic NOP receptor agonist, effectively blocks ethanol-induced increase in GABAergic transmission in the rat central amygdala". Frontiers in Integrative Neuroscience. 8: 18. doi: 10.3389/fnint.2014.00018 . ISSN   1662-5145. PMC   3927450 . PMID   24600360.
  2. Ciccocioppo, Roberto; Stopponi, Serena; Economidou, Daina; Kuriyama, Makoto; Kinoshita, Hiroshi; Heilig, Markus; Roberto, Marisa; Weiss, Friedbert; Teshima, Koji (April 2014). "Chronic treatment with novel brain-penetrating selective NOP receptor agonist MT-7716 reduces alcohol drinking and seeking in the rat". Neuropsychopharmacology. 39 (11): 2601–2610. doi:10.1038/npp.2014.113. ISSN   1740-634X. PMC   4207340 . PMID   24863033.
  3. de Guglielmo, Giordano; Martin-Fardon, Rémi; Teshima, Koji; Ciccocioppo, Roberto; Weiss, Friedbert (July 2015). "MT-7716, a potent NOP receptor agonist, preferentially reduces ethanol seeking and reinforcement in post-dependent rats". Addiction Biology. 20 (4): 643–651. doi:10.1111/adb.12157. ISSN   1355-6215. PMC   4268094 . PMID   24930632.