Evidence map›Paper›PMID 11717349›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2001

Prenatal exposure to cocaine disrupts D1A dopamine receptor function via selective inhibition of protein phosphatase 1 pathway in rabbit frontal cortex.

X Zhen, C Torres, H Y Wang, E Friedman

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
  2. Cocaine-induced neurodevelopmental deficits and underlying mechanisms.Birth defects research. Part C, Embryo today : reviews · 2016
    Review
  3. Article
  4. Developmental consequences of fetal exposure to drugs: what we know and what we still must learn.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2015
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Cocaine exposure in utero alters synaptic plasticity in the medial prefrontal cortex of postnatal rats.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    Article
  14. Prenatal cocaine reduces AMPA receptor synaptic expression through hyperphosphorylation of the synaptic anchoring protein GRIP.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    Article
  15. Modes and mishaps of neuronal migration in the mammalian brain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2008
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

X ZhenDepartment of Pharmacology and Physiology, MCP Hahnemann School of Medicine, Philadelphia, Pennsylvania 19102, USA.
C Torres
H Y Wang
E Friedman
Hahnemann University Hospital · US

Funding

PRENATAL COCAINE AND DOPAMINE RECEPTOR SIGNALINGR01DA011029 · NIDA · MCP HAHNEMANN UNIVERSITY · PI FRIEDMAN, EITAN · 1998 to 2001
$480k
NIDA NIH HHS DA11029
6 · The paper itself

Abstract

Previous work has demonstrated that in utero cocaine exposure induces an uncoupling of brain D(1A) dopamine receptors (D(1A)DARs) from G(s)-protein. The present work is an attempt to define the mechanism underlying the uncoupling. We detected a significant elevation of phosphoserine in frontal cortical D(1A)DARs of rabbits that were exposed prenatally to cocaine compared with saline controls. This increase in phosphorylation is observed at gestational day 22 and persists to postnatal day 20. The hyperphosphorylation of the D(1A)DAR is accompanied by a 45% inhibition in frontal cortex (FCX) protein phsphatase-1 (PP1) activity that appears to be mediated via DARPP-32 (dopamine and cAMP-regulated phosphoprotein) as indicated by elevated FCX phospho-DARPP-32 (Thr(34)). Furthermore, we demonstrated in both FCX and in PC2 cells that express D(1A)DARs that PP1 is physically associated with D(1A)DARs. We also observed a dramatic decrease in D(1A)DAR-associated PP1 activity in FCX of prenatal cocaine-exposed rabbits, indicating that the reduction in PP1 activity may be responsible for the hyperphosphorylation of the receptor. Furthermore, pretreatment of cortical membranes obtained from cocaine-exposed animals with exogenous PP1 dephosphorylated the phosphorylated D(1A)DAR and significantly reversed the impaired receptor-G(alphas) coupling. This work indicates (1) that D(1A)DAR dephosphorylation via PP1 is essential for receptor resensitization or reactivation and (2) an alteration in the DARPP-32/PP1 cascade appears to be a primary event responsible for D(1A)DAR dysfunction in in utero cocaine-exposed rabbit progeny. The present finding of an altered DARPP-32/PP1 cascade in association with a dysfunction in D(1A)DAR signal transmission in the prenatal cocaine-exposed rabbit brain may implicate novel strategies for the prevention and treatment for in utero cocaine-induced developmental and behavioral abnormalities.

Indexed as

Nerve Tissue ProteinsPrenatal Exposure Delayed EffectsAgingAnimalsCocaineDopamine and cAMP-Regulated Phosphoprotein 32Enzyme ActivationFemaleFrontal LobeGTP-Binding ProteinsIn Vitro TechniquesMalePhosphoprotein PhosphatasesPhosphoproteinsPhosphorylationPregnancyCocaineDopamine and cAMP-Regulated Phosphoprotein 32dopamine D1A receptorGTP-Binding ProteinsNerve Tissue ProteinsPhosphoprotein PhosphatasesPhosphoproteinsProtein Phosphatase 1Receptors, Dopamine D1Serine

Identifiers

PMID11717349
PMCPMC6763896
OpenAlexW2145592505

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.