Title : The rewards of nicotine: regulation by tissue plasminogen activator-plasmin system through protease activated receptor-1.

Pub. Date : 2006 Nov 22

PMID : 17122062






11 Functional Relationships(s)
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1 The rewards of nicotine: regulation by tissue plasminogen activator-plasmin system through protease activated receptor-1. Nicotine plasminogen activator, tissue Mus musculus
2 Here we show that the tissue plasminogen activator (tPA)-plasmin system regulates nicotine-induced reward and dopamine release by activating protease activated receptor-1 (PAR1). Nicotine plasminogen activator, tissue Mus musculus
3 Here we show that the tissue plasminogen activator (tPA)-plasmin system regulates nicotine-induced reward and dopamine release by activating protease activated receptor-1 (PAR1). Nicotine plasminogen activator, tissue Mus musculus
4 In vivo microdialysis revealed that microinjection of either tPA or plasmin into the nucleus accumbens (NAc) significantly potentiated whereas plasminogen activator inhibitor-1 reduced the nicotine-induced dopamine release in the NAc in a dose-dependent manner. Nicotine plasminogen activator, tissue Mus musculus
5 Nicotine-induced dopamine release was markedly diminished in tPA-deficient (tPA-/-) mice, and the defect of dopamine release in tPA-/- mice was restored by microinjection of either exogenous tPA or plasmin into the NAc. Nicotine plasminogen activator, tissue Mus musculus
6 Nicotine-induced dopamine release was markedly diminished in tPA-deficient (tPA-/-) mice, and the defect of dopamine release in tPA-/- mice was restored by microinjection of either exogenous tPA or plasmin into the NAc. Nicotine plasminogen activator, tissue Mus musculus
7 Nicotine-induced dopamine release was markedly diminished in tPA-deficient (tPA-/-) mice, and the defect of dopamine release in tPA-/- mice was restored by microinjection of either exogenous tPA or plasmin into the NAc. Nicotine plasminogen activator, tissue Mus musculus
8 Nicotine-induced dopamine release was markedly diminished in tPA-deficient (tPA-/-) mice, and the defect of dopamine release in tPA-/- mice was restored by microinjection of either exogenous tPA or plasmin into the NAc. Nicotine plasminogen activator, tissue Mus musculus
9 Nicotine increased tPA protein levels and promoted the release of tPA into the extracellular space in the NAc. Nicotine plasminogen activator, tissue Mus musculus
10 Nicotine increased tPA protein levels and promoted the release of tPA into the extracellular space in the NAc. Nicotine plasminogen activator, tissue Mus musculus
11 Targeting the tPA-plasmin-PAR1 system would provide new therapeutic approaches to the treatment of nicotine dependence. Nicotine plasminogen activator, tissue Mus musculus