Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat

Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Kallupi, Marsida [verfasserIn] de Guglielmo, Giordano Cannella, Nazzareno Li, Hong Wu Caló, Girolamo Guerrini, Remo Ubaldi, Massimo Renger, John J. Uebele, Victor N. Ciccocioppo, Roberto

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2012

Schlagwörter:	Addiction Drug abuse Neuropeptide S Self-administration Relapse Psychostimulants

Anmerkung:	© Springer-Verlag Berlin Heidelberg 2012

Übergeordnetes Werk:	Enthalten in: Psychopharmacology - Berlin : Springer, 1959, 226(2012), 2 vom: 13. Nov., Seite 347-355
Übergeordnetes Werk:	volume:226 ; year:2012 ; number:2 ; day:13 ; month:11 ; pages:347-355

Links:	Volltext

DOI / URN:	10.1007/s00213-012-2910-y

Katalog-ID:	SPR002025302

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100	1		\|a Kallupi, Marsida \|e verfasserin \|4 aut
245	1	0	\|a Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat
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520			\|a Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment.
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700	1		\|a de Guglielmo, Giordano \|4 aut
700	1		\|a Cannella, Nazzareno \|4 aut
700	1		\|a Li, Hong Wu \|4 aut
700	1		\|a Caló, Girolamo \|4 aut
700	1		\|a Guerrini, Remo \|4 aut
700	1		\|a Ubaldi, Massimo \|4 aut
700	1		\|a Renger, John J. \|4 aut
700	1		\|a Uebele, Victor N. \|4 aut
700	1		\|a Ciccocioppo, Roberto \|4 aut
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allfields	10.1007/s00213-012-2910-y doi (DE-627)SPR002025302 (SPR)s00213-012-2910-y-e DE-627 ger DE-627 rakwb eng Kallupi, Marsida verfasserin aut Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag Berlin Heidelberg 2012 Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment. Addiction (dpeaa)DE-He213 Drug abuse (dpeaa)DE-He213 Neuropeptide S (dpeaa)DE-He213 Self-administration (dpeaa)DE-He213 Relapse (dpeaa)DE-He213 Psychostimulants (dpeaa)DE-He213 de Guglielmo, Giordano aut Cannella, Nazzareno aut Li, Hong Wu aut Caló, Girolamo aut Guerrini, Remo aut Ubaldi, Massimo aut Renger, John J. aut Uebele, Victor N. aut Ciccocioppo, Roberto aut Enthalten in Psychopharmacology Berlin : Springer, 1959 226(2012), 2 vom: 13. Nov., Seite 347-355 (DE-627)341342254 (DE-600)2066933-1 1432-2072 nnns volume:226 year:2012 number:2 day:13 month:11 pages:347-355 https://dx.doi.org/10.1007/s00213-012-2910-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 226 2012 2 13 11 347-355
spelling	10.1007/s00213-012-2910-y doi (DE-627)SPR002025302 (SPR)s00213-012-2910-y-e DE-627 ger DE-627 rakwb eng Kallupi, Marsida verfasserin aut Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag Berlin Heidelberg 2012 Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment. Addiction (dpeaa)DE-He213 Drug abuse (dpeaa)DE-He213 Neuropeptide S (dpeaa)DE-He213 Self-administration (dpeaa)DE-He213 Relapse (dpeaa)DE-He213 Psychostimulants (dpeaa)DE-He213 de Guglielmo, Giordano aut Cannella, Nazzareno aut Li, Hong Wu aut Caló, Girolamo aut Guerrini, Remo aut Ubaldi, Massimo aut Renger, John J. aut Uebele, Victor N. aut Ciccocioppo, Roberto aut Enthalten in Psychopharmacology Berlin : Springer, 1959 226(2012), 2 vom: 13. Nov., Seite 347-355 (DE-627)341342254 (DE-600)2066933-1 1432-2072 nnns volume:226 year:2012 number:2 day:13 month:11 pages:347-355 https://dx.doi.org/10.1007/s00213-012-2910-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 226 2012 2 13 11 347-355
allfields_unstemmed	10.1007/s00213-012-2910-y doi (DE-627)SPR002025302 (SPR)s00213-012-2910-y-e DE-627 ger DE-627 rakwb eng Kallupi, Marsida verfasserin aut Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag Berlin Heidelberg 2012 Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment. Addiction (dpeaa)DE-He213 Drug abuse (dpeaa)DE-He213 Neuropeptide S (dpeaa)DE-He213 Self-administration (dpeaa)DE-He213 Relapse (dpeaa)DE-He213 Psychostimulants (dpeaa)DE-He213 de Guglielmo, Giordano aut Cannella, Nazzareno aut Li, Hong Wu aut Caló, Girolamo aut Guerrini, Remo aut Ubaldi, Massimo aut Renger, John J. aut Uebele, Victor N. aut Ciccocioppo, Roberto aut Enthalten in Psychopharmacology Berlin : Springer, 1959 226(2012), 2 vom: 13. Nov., Seite 347-355 (DE-627)341342254 (DE-600)2066933-1 1432-2072 nnns volume:226 year:2012 number:2 day:13 month:11 pages:347-355 https://dx.doi.org/10.1007/s00213-012-2910-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 226 2012 2 13 11 347-355
allfieldsGer	10.1007/s00213-012-2910-y doi (DE-627)SPR002025302 (SPR)s00213-012-2910-y-e DE-627 ger DE-627 rakwb eng Kallupi, Marsida verfasserin aut Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag Berlin Heidelberg 2012 Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment. Addiction (dpeaa)DE-He213 Drug abuse (dpeaa)DE-He213 Neuropeptide S (dpeaa)DE-He213 Self-administration (dpeaa)DE-He213 Relapse (dpeaa)DE-He213 Psychostimulants (dpeaa)DE-He213 de Guglielmo, Giordano aut Cannella, Nazzareno aut Li, Hong Wu aut Caló, Girolamo aut Guerrini, Remo aut Ubaldi, Massimo aut Renger, John J. aut Uebele, Victor N. aut Ciccocioppo, Roberto aut Enthalten in Psychopharmacology Berlin : Springer, 1959 226(2012), 2 vom: 13. Nov., Seite 347-355 (DE-627)341342254 (DE-600)2066933-1 1432-2072 nnns volume:226 year:2012 number:2 day:13 month:11 pages:347-355 https://dx.doi.org/10.1007/s00213-012-2910-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 226 2012 2 13 11 347-355
allfieldsSound	10.1007/s00213-012-2910-y doi (DE-627)SPR002025302 (SPR)s00213-012-2910-y-e DE-627 ger DE-627 rakwb eng Kallupi, Marsida verfasserin aut Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag Berlin Heidelberg 2012 Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment. Addiction (dpeaa)DE-He213 Drug abuse (dpeaa)DE-He213 Neuropeptide S (dpeaa)DE-He213 Self-administration (dpeaa)DE-He213 Relapse (dpeaa)DE-He213 Psychostimulants (dpeaa)DE-He213 de Guglielmo, Giordano aut Cannella, Nazzareno aut Li, Hong Wu aut Caló, Girolamo aut Guerrini, Remo aut Ubaldi, Massimo aut Renger, John J. aut Uebele, Victor N. aut Ciccocioppo, Roberto aut Enthalten in Psychopharmacology Berlin : Springer, 1959 226(2012), 2 vom: 13. Nov., Seite 347-355 (DE-627)341342254 (DE-600)2066933-1 1432-2072 nnns volume:226 year:2012 number:2 day:13 month:11 pages:347-355 https://dx.doi.org/10.1007/s00213-012-2910-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 226 2012 2 13 11 347-355
language	English
source	Enthalten in Psychopharmacology 226(2012), 2 vom: 13. Nov., Seite 347-355 volume:226 year:2012 number:2 day:13 month:11 pages:347-355
sourceStr	Enthalten in Psychopharmacology 226(2012), 2 vom: 13. Nov., Seite 347-355 volume:226 year:2012 number:2 day:13 month:11 pages:347-355
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Addiction Drug abuse Neuropeptide S Self-administration Relapse Psychostimulants
isfreeaccess_bool	false
container_title	Psychopharmacology
authorswithroles_txt_mv	Kallupi, Marsida @@aut@@ de Guglielmo, Giordano @@aut@@ Cannella, Nazzareno @@aut@@ Li, Hong Wu @@aut@@ Caló, Girolamo @@aut@@ Guerrini, Remo @@aut@@ Ubaldi, Massimo @@aut@@ Renger, John J. @@aut@@ Uebele, Victor N. @@aut@@ Ciccocioppo, Roberto @@aut@@
publishDateDaySort_date	2012-11-13T00:00:00Z
hierarchy_top_id	341342254
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This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Addiction</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Drug abuse</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Neuropeptide S</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Self-administration</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Relapse</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Psychostimulants</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">de Guglielmo, Giordano</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Cannella, Nazzareno</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Li, Hong Wu</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Caló, Girolamo</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Guerrini, Remo</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ubaldi, Massimo</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Renger, John J.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Uebele, Victor N.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ciccocioppo, Roberto</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Psychopharmacology</subfield><subfield code="d">Berlin : Springer, 1959</subfield><subfield code="g">226(2012), 2 vom: 13. 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author	Kallupi, Marsida
spellingShingle	Kallupi, Marsida misc Addiction misc Drug abuse misc Neuropeptide S misc Self-administration misc Relapse misc Psychostimulants Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat
authorStr	Kallupi, Marsida
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topic_title	Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat Addiction (dpeaa)DE-He213 Drug abuse (dpeaa)DE-He213 Neuropeptide S (dpeaa)DE-He213 Self-administration (dpeaa)DE-He213 Relapse (dpeaa)DE-He213 Psychostimulants (dpeaa)DE-He213
topic	misc Addiction misc Drug abuse misc Neuropeptide S misc Self-administration misc Relapse misc Psychostimulants
topic_unstemmed	misc Addiction misc Drug abuse misc Neuropeptide S misc Self-administration misc Relapse misc Psychostimulants
topic_browse	misc Addiction misc Drug abuse misc Neuropeptide S misc Self-administration misc Relapse misc Psychostimulants
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title	Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat
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title_full	Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat
author_sort	Kallupi, Marsida
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author_browse	Kallupi, Marsida de Guglielmo, Giordano Cannella, Nazzareno Li, Hong Wu Caló, Girolamo Guerrini, Remo Ubaldi, Massimo Renger, John J. Uebele, Victor N. Ciccocioppo, Roberto
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title_sort	hypothalamic neuropeptide s receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat
title_auth	Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat
abstract	Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment. © Springer-Verlag Berlin Heidelberg 2012
abstractGer	Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment. © Springer-Verlag Berlin Heidelberg 2012
abstract_unstemmed	Rationale Previous studies have shown that activation of brain neuropeptide S receptor (NPSR) facilitates reinstatement of cocaine seeking elicited by environmental cues predictive of drug availability. This finding suggests the possibility that blockade of NPSR receptors may be of therapeutic benefit in cocaine addiction. To evaluate this hypothesis, we investigated the effect of two newly synthetized NPSR antagonists, namely the quinolinone-amide derivative NPSR-QA1 and the NPS peptidic analogue [D-Cys(tBu)5]NPS on cocaine self-administration and on discriminative cue-induced relapse to cocaine seeking in the rat. Methods Separate groups of rats self-administered food and cocaine 0.25 mg/kg/inf in FR1 and FR5 (fixed ratio reinforcement schedules) for 30-min and 2-h sessions per day. After food and cocaine intake reached baseline levels, the effect of NPSR-QA1 was tested on cocaine and food self-administration. The NPSR-QA1 was injected intraperitoneally and its effect on discriminative cue-induced reinstatement was evaluated, while [D-Cys(tBut)5]NPS was injected intracranially, intra-lateral hypothalamus, intra-perifornical area of the hypothalamus, and intra-central amygdala. The effect of the NPSR-QA1 on extinction of cocaine seeking was also assessed. Results Intraperitoneal administration of NPSR-QA1 (15–30 mg/kg) did not affect cocaine self-administration. Conversely, NPSR-QA1 (15–30 mg/kg) decreased discriminative cue-induced cocaine relapse. At the lowest dose, this effect was specific, while at the highest dose, NPSR-QA1 also reduced food self-administration. The efficacy of NPSR antagonism on cocaine seeking was confirmed with [D-Cys(tBu)5]NPS (10–30 nmol/rat) as it markedly inhibited relapse behavior following site-specific injection into the lateral hypothalamus and the perifornical area of the hypothalamus but not into the central amygdala. Conclusions The identification of the NPS/NPSR system as an important new element involved in the physiopathology of cocaine addiction and the discovery of the anti-addictive properties of NPSR antagonists opens the possibility of exploring a new mechanism for cocaine addiction treatment. © Springer-Verlag Berlin Heidelberg 2012
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title_short	Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat
url	https://dx.doi.org/10.1007/s00213-012-2910-y
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Hypothalamic Neuropeptide S receptor blockade decreases discriminative cue-induced reinstatement of cocaine seeking in the rat

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