Title : Dopamine down-regulation of protein L-isoaspartyl methyltransferase is dependent on reactive oxygen species in SH-SY5Y cells.

Pub. Date : 2014 May 16

PMID : 24631677






20 Functional Relationships(s)
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1 Dopamine down-regulation of protein L-isoaspartyl methyltransferase is dependent on reactive oxygen species in SH-SY5Y cells. Dopamine protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
2 Dopamine down-regulation of protein L-isoaspartyl methyltransferase is dependent on reactive oxygen species in SH-SY5Y cells. Reactive Oxygen Species protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
3 Together, these observations prompted us to investigate whether dopamine can regulate PIMT expression in SH-SY5Y neuroblastoma cells. Dopamine protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
4 Here, we report that dopamine down-regulated PIMT at both gene and protein levels. Dopamine protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
5 The same inhibition of PIMT protein level was caused by the electron transport chain inhibitor, rotenone, which was accompanied, in both cases, by an increase in cell death and reactive oxygen species (ROS) production. Rotenone protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
6 The same inhibition of PIMT protein level was caused by the electron transport chain inhibitor, rotenone, which was accompanied, in both cases, by an increase in cell death and reactive oxygen species (ROS) production. Reactive Oxygen Species protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
7 The same inhibition of PIMT protein level was caused by the electron transport chain inhibitor, rotenone, which was accompanied, in both cases, by an increase in cell death and reactive oxygen species (ROS) production. Reactive Oxygen Species protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
8 In fact, pre-treatment with the antioxidant N-acetyl cysteine blocked PIMT dopamine-associated down-regulation. Acetylcysteine protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
9 In fact, pre-treatment with the antioxidant N-acetyl cysteine blocked PIMT dopamine-associated down-regulation. Dopamine protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
10 The inhibition of PCMT1 promoter activity was mediated by dopamine-induced ROS since it was prevented by the hydroxyl radical scavenger N,N"-dimethylthiourea. Dopamine protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
11 The inhibition of PCMT1 promoter activity was mediated by dopamine-induced ROS since it was prevented by the hydroxyl radical scavenger N,N"-dimethylthiourea. Reactive Oxygen Species protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
12 The inhibition of PCMT1 promoter activity was mediated by dopamine-induced ROS since it was prevented by the hydroxyl radical scavenger N,N"-dimethylthiourea. Hydroxyl Radical protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
13 The inhibition of PCMT1 promoter activity was mediated by dopamine-induced ROS since it was prevented by the hydroxyl radical scavenger N,N"-dimethylthiourea. 1,3-dimethylthiourea protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
14 Conversely, H2O2 inhibited in a dose-dependent manner the transcriptional activity of PCMT1 promoter. Hydrogen Peroxide protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
15 Therefore, our findings identified new molecular mechanisms, cytosolic dopamine and its resulting ROS, as inhibitors of PIMT expression. Dopamine protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
16 Therefore, our findings identified new molecular mechanisms, cytosolic dopamine and its resulting ROS, as inhibitors of PIMT expression. Reactive Oxygen Species protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
17 This suggests that ROS generated from cytosolic dopamine could reduce both the PCMT1 gene promoter activity and the PIMT protein level thus decreasing its capacity to repair proteins involved in apoptosis and could contribute to neuronal cell death observed in PD. Reactive Oxygen Species protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
18 This suggests that ROS generated from cytosolic dopamine could reduce both the PCMT1 gene promoter activity and the PIMT protein level thus decreasing its capacity to repair proteins involved in apoptosis and could contribute to neuronal cell death observed in PD. Reactive Oxygen Species protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
19 This suggests that ROS generated from cytosolic dopamine could reduce both the PCMT1 gene promoter activity and the PIMT protein level thus decreasing its capacity to repair proteins involved in apoptosis and could contribute to neuronal cell death observed in PD. Dopamine protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens
20 This suggests that ROS generated from cytosolic dopamine could reduce both the PCMT1 gene promoter activity and the PIMT protein level thus decreasing its capacity to repair proteins involved in apoptosis and could contribute to neuronal cell death observed in PD. Dopamine protein-L-isoaspartate (D-aspartate) O-methyltransferase Homo sapiens