Activation of proline metabolism maintains ATP levels during cocaine-induced polyADP-ribosylation.
Adenosine Triphosphate
/ metabolism
Apoptosis
/ drug effects
Cell Death
/ drug effects
Cell Line, Tumor
Cocaine
/ adverse effects
Humans
Metabolic Networks and Pathways
/ drug effects
Poly (ADP-Ribose) Polymerase-1
/ metabolism
Proline
/ metabolism
Signal Transduction
/ drug effects
Tumor Suppressor Protein p53
/ metabolism
ATP
Cocaine
Poly(ADP-ribose) polymerase-1
Proline oxidase
p53
Journal
Amino acids
ISSN: 1438-2199
Titre abrégé: Amino Acids
Pays: Austria
ID NLM: 9200312
Informations de publication
Date de publication:
Dec 2021
Dec 2021
Historique:
received:
23
04
2021
accepted:
06
08
2021
pubmed:
22
8
2021
medline:
17
3
2022
entrez:
21
8
2021
Statut:
ppublish
Résumé
Cocaine is a commonly abused drug worldwide. Acute as well as repeated exposure to cocaine activates persistent cellular and molecular changes in the brain reward regions. The effects of cocaine are predominantly mediated via alterations in neuronal gene expression by chromatin remodeling. Poly(ADP-ribose) polymerase-1 (PARP-1) catalyzed PARylation of chromatin has been reported as an important regulator of cocaine-mediated gene expression. PARP-1 dependent ADP-ribosylation is an energy-dependent process. In this study, we investigated the cellular energy response to cocaine-induced upregulation of PARP-1 expression. Exposure of differentiated SH-SY5Y cells to varying concentrations of cocaine resulted in the induction of PARP-1 dependent PARylation of p53 tumor suppressor. Further analysis revealed that PARylation of p53 by cocaine treatment resulted in nuclear accumulation of p53. However, induction and nuclear accumulation of p53 did not correlate with neuronal apoptosis/cell death upon cocaine exposure. Interestingly, cocaine-induced p53 PARylation resulted in the induction of proline oxidase (POX)-a p53 responsive gene involved in cellular metabolism. Given that cocaine-induced p53 PARylation is an energy-dependent process, we observed that cocaine-induced PARP-1/p53/POX axes alters cellular energy metabolism. Accordingly, using pharmacological and genetic studies of PARP-1, p53, and POX, we demonstrated the contribution of POX in maintaining cellular energy during neuronal function. Collectively, these studies highlight activation of a novel metabolic pathway in response to cocaine treatment.
Identifiants
pubmed: 34417893
doi: 10.1007/s00726-021-03065-w
pii: 10.1007/s00726-021-03065-w
pmc: PMC8651605
doi:
Substances chimiques
Tumor Suppressor Protein p53
0
Adenosine Triphosphate
8L70Q75FXE
Proline
9DLQ4CIU6V
PARP1 protein, human
EC 2.4.2.30
Poly (ADP-Ribose) Polymerase-1
EC 2.4.2.30
Cocaine
I5Y540LHVR
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1903-1915Subventions
Organisme : NIAID NIH HHS
ID : R01 AI136740
Pays : United States
Organisme : NIMHD NIH HHS
ID : U54 MD007586
Pays : United States
Organisme : NIDA NIH HHS
ID : R24 DA036420
Pays : United States
Organisme : NIAID NIH HHS
ID : R56 AI122960
Pays : United States
Organisme : NIDA NIH HHS
ID : R01 DA042348
Pays : United States
Organisme : National Center on Minority Health and Health Disparities
ID : U54MD007586
Organisme : NIAID NIH HHS
ID : R25 AI164610
Pays : United States
Organisme : NIAID NIH HHS
ID : P30 AI110527
Pays : United States
Organisme : NIMHD NIH HHS
ID : U54 MD007593
Pays : United States
Informations de copyright
© 2021. The Author(s).
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