Entry
Name
Morphine addiction - Phocoena sinus (vaquita)
Description
Morphine is an alkaloid from the plant extracts of opium poppy. Although morphine is highly effective for the treatment of pain, it is also known to be intensely addictive. We now know that the most important brain-reward circuit involves dopamine (DA) -containing neurons in the ventral tegmental area (VTA) of the midbrain and their target areas in the limbic forebrain, in particular, the nucleus accumbens (NAc) and frontal regions of cerebral cortex. Morphine can cause indirect excitation of VTA dopamine neurons by reducing inhibitory synaptic transmission mediated by GABAergic neurons. The chronic use of morphine is characterized by adaptive changes in neurons and neuronal communication; such adaptations (e.g., 'superactivation' of adenylyl cyclase) must underlie altered behaviour associated with morphine dependence and withdrawal syndrome, as well as drug-induced craving and relapse to drug use.
Class
Human Diseases; Substance dependence
BRITE hierarchy
Pathway map
Ortholog table
Other DBs
Organism
Phocoena sinus (vaquita) [GN:
psiu ]
Gene
116756285 KCNJ3; G protein-activated inward rectifier potassium channel 1 [KO:K04997 ]
116752719 KCNJ6; G protein-activated inward rectifier potassium channel 2 [KO:K05000 ]
116761814 KCNJ9; G protein-activated inward rectifier potassium channel 3 [KO:K05002 ]
116758063 KCNJ5; G protein-activated inward rectifier potassium channel 4 isoform X1 [KO:K04999 ]
116751638 CACNA1A; voltage-dependent P/Q-type calcium channel subunit alpha-1A [KO:K04344 ]
116755421 CACNA1B; LOW QUALITY PROTEIN: voltage-dependent N-type calcium channel subunit alpha-1B [KO:K04849 ]
116747461 GABRA3; gamma-aminobutyric acid receptor subunit alpha-3 isoform X1 [KO:K05175 ]
116754229 GABRA2; gamma-aminobutyric acid receptor subunit alpha-2 isoform X1 [KO:K05175 ]
116754263 GABRA4; gamma-aminobutyric acid receptor subunit alpha-4 isoform X1 [KO:K05175 ]
116749073 GABRA5; gamma-aminobutyric acid receptor subunit alpha-5 [KO:K05175 ]
116741222 LOW QUALITY PROTEIN: gamma-aminobutyric acid receptor subunit alpha-5-like [KO:K05175 ]
116751345 GABRA1; gamma-aminobutyric acid receptor subunit alpha-1 isoform X1 [KO:K05175 ]
116751396 GABRA6; gamma-aminobutyric acid receptor subunit alpha-6 [KO:K05175 ]
116754137 GABRB1; gamma-aminobutyric acid receptor subunit beta-1 isoform X1 [KO:K05181 ]
116750004 GABRB3; gamma-aminobutyric acid receptor subunit beta-3 isoform X1 [KO:K05181 ]
116751382 GABRB2; gamma-aminobutyric acid receptor subunit beta-2 isoform X1 [KO:K05181 ]
116754257 GABRG1; gamma-aminobutyric acid receptor subunit gamma-1 [KO:K05186 ]
116749807 GABRG3; gamma-aminobutyric acid receptor subunit gamma-3 [KO:K05186 ]
116751267 GABRG2; gamma-aminobutyric acid receptor subunit gamma-2 isoform X1 [KO:K05186 ]
116763887 GABRD; gamma-aminobutyric acid receptor subunit delta [KO:K05184 ]
116747809 GABRE; gamma-aminobutyric acid receptor subunit epsilon [KO:K05185 ]
116747990 GABRQ; gamma-aminobutyric acid receptor subunit theta [KO:K05192 ]
116751761 GABRP; gamma-aminobutyric acid receptor subunit pi isoform X1 [KO:K05189 ]
116753391 GABRR3; gamma-aminobutyric acid receptor subunit rho-3 [KO:K05190 ]
116763181 GABRR2; gamma-aminobutyric acid receptor subunit rho-2 [KO:K05190 ]
116763512 GABRR1; gamma-aminobutyric acid receptor subunit rho-1 [KO:K05190 ]
116755193 GABBR2; gamma-aminobutyric acid type B receptor subunit 2 [KO:K04615 ]
116762593 GABBR1; gamma-aminobutyric acid type B receptor subunit 1 isoform X1 [KO:K04615 ]
116761812 GNAI2; guanine nucleotide-binding protein G(i) subunit alpha-2 isoform X1 [KO:K04630 ]
116749946 GNAI3; guanine nucleotide-binding protein G(i) subunit alpha [KO:K04630 ]
116759318 GNAI1; guanine nucleotide-binding protein G(i) subunit alpha-1 [KO:K04630 ]
116744142 guanine nucleotide-binding protein G(o) subunit alpha [KO:K04534 ]
116764574 GNB1; guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 [KO:K04536 ]
116739605 GNB2; LOW QUALITY PROTEIN: guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-2 [KO:K04537 ]
116760197 GNB3; guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-3 [KO:K07825 ]
116753308 GNB4; guanine nucleotide-binding protein subunit beta-4 isoform X1 [KO:K04538 ]
116748817 GNB5; guanine nucleotide-binding protein subunit beta-5 isoform X1 [KO:K04539 ]
116748861 GNG2; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 isoform X1 [KO:K07826 ]
116758798 GNG3; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-3 [KO:K04540 ]
116742043 GNG4; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-4 [KO:K04541 ]
116753058 GNG5; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-5 [KO:K04542 ]
116763781 guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-5-like [KO:K04542 ]
116743126 guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-5-like [KO:K04542 ]
116752047 GNG7; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-7 [KO:K04543 ]
116743417 GNG8; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-8 [KO:K04544 ]
116744006 guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-10-like [KO:K04545 ]
116755457 GNG10; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-10 [KO:K04545 ]
116759883 GNG11; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-11 isoform X1 [KO:K04546 ]
116756875 GNG12; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-12 [KO:K04347 ]
116740969 GNG13; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-13 [KO:K04547 ]
116759589 GNGT1; guanine nucleotide-binding protein G(T) subunit gamma-T1 [KO:K04548 ]
116745853 GNGT2; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-T2 [KO:K04549 ]
116740988 GNAS; guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas isoform X1 [KO:K04632 ]
116759999 PDE1B; calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1B isoform X1 [KO:K13755 ] [EC:3.1.4.17 ]
116756887 PDE1A; calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A [KO:K13755 ] [EC:3.1.4.17 ]
116759526 PDE1C; calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1C isoform X1 [KO:K13755 ] [EC:3.1.4.17 ]
116742396 PDE7A; high affinity cAMP-specific 3',5'-cyclic phosphodiesterase 7A isoform X1 [KO:K18436 ] [EC:3.1.4.53 ]
116746651 PDE8A; high affinity cAMP-specific and IBMX-insensitive 3',5'-cyclic phosphodiesterase 8A isoform X1 [KO:K18437 ] [EC:3.1.4.53 ]
116740856 LOW QUALITY PROTEIN: high affinity cAMP-specific and IBMX-insensitive 3',5'-cyclic phosphodiesterase 8A-like [KO:K18437 ] [EC:3.1.4.53 ]
116750827 PDE8B; high affinity cAMP-specific and IBMX-insensitive 3',5'-cyclic phosphodiesterase 8B [KO:K18437 ] [EC:3.1.4.53 ]
Compound
D02271 Morphine hydrochloride hydrate (JP18)
Reference
Authors
Bailey CP, Connor M
Title
Opioids: cellular mechanisms of tolerance and physical dependence.
Journal
Reference
Authors
Williams JT, Christie MJ, Manzoni O
Title
Cellular and synaptic adaptations mediating opioid dependence.
Journal
Reference
Authors
Gintzler AR, Chakrabarti S
Title
Post-opioid receptor adaptations to chronic morphine; altered functionality and associations of signaling molecules.
Journal
Reference
Authors
Bonci A, Williams JT
Title
A common mechanism mediates long-term changes in synaptic transmission after chronic cocaine and morphine.
Journal
Reference
Authors
Liu JG, Anand KJ
Title
Protein kinases modulate the cellular adaptations associated with opioid tolerance and dependence.
Journal
Reference
Authors
Shoji Y, Delfs J, Williams JT
Title
Presynaptic inhibition of GABA(B)-mediated synaptic potentials in the ventral tegmental area during morphine withdrawal.
Journal
Reference
Authors
Zhang Y, Chen Q, Yu LC
Title
Morphine: a protective or destructive role in neurons?
Journal
Reference
Authors
Tso PH, Wong YH
Title
Molecular basis of opioid dependence: role of signal regulation by G-proteins.
Journal
Reference
Authors
Johnson SW, North RA
Title
Opioids excite dopamine neurons by hyperpolarization of local interneurons.
Journal
Reference
Authors
Madhavan A, Bonci A, Whistler JL
Title
Opioid-Induced GABA potentiation after chronic morphine attenuates the rewarding effects of opioids in the ventral tegmental area.
Journal
Reference
Authors
Bonci A, Williams JT
Title
Increased probability of GABA release during withdrawal from morphine.
Journal
Reference
Authors
Morikawa H, Paladini CA
Title
Dynamic regulation of midbrain dopamine neuron activity: intrinsic, synaptic, and plasticity mechanisms.
Journal
Reference
Authors
Xi ZX, Stein EA
Title
GABAergic mechanisms of opiate reinforcement .
Journal
Reference
Authors
Kalivas PW
Title
Neurotransmitter regulation of dopamine neurons in the ventral tegmental area.
Journal
Reference
Authors
Jalabert M, Bourdy R, Courtin J, Veinante P, Manzoni OJ, Barrot M, Georges F
Title
Neuronal circuits underlying acute morphine action on dopamine neurons.
Journal
Reference
Authors
Chakrabarti S, Gintzler AR
Title
Phosphorylation of Gbeta is augmented by chronic morphine and enhances Gbetagamma stimulation of adenylyl cyclase activity.
Journal
Reference
Authors
Ferrer-Alcon M, La Harpe R, Garcia-Sevilla JA
Title
Decreased immunodensities of micro-opioid receptors, receptor kinases GRK 2/6 and beta-arrestin-2 in postmortem brains of opiate addicts.
Journal
Related pathway
KO pathway
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