SR 48692 has been used as a neurotensin high-affinity receptor 1 (NTSR1) antagonist:
to explore the function of NTSR1 in glioblastoma (GBM) cells[1]
to determine the roles of neurotensin (NT) in the regulation of bile acid (BA) uptake, in vivo[2]
to explore the involvement of NTSR1 versus NTSR2 in mice[3]
Biochem/physiol Actions
SR 48692 is a high affinity, orally bioavailable and selective nonpeptide NT1 neurotensin receptor antagonist that antagonizes neurotensin-induced calcium mobilization with a pA2 of 8.13 in HT-29 human colon carcinoma cell line, and blocks the ability of neurotensin to increase GABA levels in the prefrontal cortex.
SR 48692 is a high affinity, orally bioavailable and selective nonpeptide NT1 neurotensin receptor antagonist.
Features and Benefits
This compound is featured on the Neurotensin Receptors page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
The European journal of neuroscience, 24(10), 2789-2800 (2006-11-23)
Several lines of evidence suggest a close association between dopamine (DA) and neurotensin (NT) systems in the CNS. Indeed, in the rodent brain, abundant NT-containing fibres are found in DA-rich areas such as the ventral tegmental area and substantia nigra.
In the central nervous system neurotensin (NT) acts as a neurotransmitter and neuromodulator. It was shown that NT has positive reinforcing effects after its direct microinjection into the ventral tegmental area. The central nucleus of amygdala (CeA), part of the
In a search for nonpeptide agonists for the neurotensin receptor (NTR1), we replaced the adamantyl amino acid moiety found in the antagonist SR48692 (1a) with leucine and related alpha-alkylamino acids found in peptide agonists. When tested in a calcium mobilization
Psychostimulant-induced locomotor sensitization has been related to changes within the mesolimbic dopamine system and has been suggested to be useful to study mechanisms underlying drug craving. Neurotensin is a neuropeptide co-localized with dopamine in the mesolimbic system. The response to
Brain research bulletin, 77(2-3), 129-135 (2008-08-30)
The effects of the peptide transmitter neurotensin (NT) on the release of acetylcholine (ACh), gamma-aminobutyric acid (GABA), glutamate (Glu), aspartate (Asp), and taurine from the prefrontal cortex (PFC) of freely moving rats were studied by transversal microdialysis. Neurotensin (0.2 and
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