Evidence map›Paper›PMID 12972605›Full record

ArticleMolecular and cellular biology2003

Puralpha is essential for postnatal brain development and developmentally coupled cellular proliferation as revealed by genetic inactivation in the mouse.

Kamel Khalili, Luis Del Valle, Vandhana Muralidharan, William J Gault, Nune Darbinian, Jessica Otte, Ellen Meier, Edward M Johnson, Dianne C Daniel, Yayoi Kinoshita and 2 more

Open access · greenAbstract readComparative Study
In one paragraph

Article in Molecular and cellular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 2 pooled it
2.5field-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

101 citing papers in PubMed, 2 syntheses or guidelines pooled it, 192 citations in OpenAlex.

  1. Pooled it
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  17. Movement Disorders in PURA Syndrome: A Video Case Series.Movement disorders clinical practice · 2023
    Article
  18. Review
  19. Article
  20. Heterozygous c.175C>T variant inClinical case reports · 2023
    Article

41 more citing papers are in PubMed but not listed here.

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

12 authors at 2 institutions in 1 country.

Kamel KhaliliCenter for Neurovirology and Cancer Biology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania 19122, USA. kamel.khalili@temple.edu
Luis Del Valle
Vandhana Muralidharan
William J Gault
Nune Darbinian
Jessica Otte
Ellen Meier
Edward M Johnson
Dianne C Daniel
Yayoi Kinoshita
Shohreh Amini
Jennifer Gordon
Temple University · USIcahn School of Medicine at Mount Sinai · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The single-stranded DNA- and RNA-binding protein, Puralpha, has been implicated in many biological processes, including control of transcription of multiple genes, initiation of DNA replication, and RNA transport and translation. Deletions of the PURA gene are frequent in acute myeloid leukemia. Mice with targeted disruption of the PURA gene in both alleles appear normal at birth, but at 2 weeks of age, they develop neurological problems manifest by severe tremor and spontaneous seizures and they die by 4 weeks. There are severely lower numbers of neurons in regions of the hippocampus and cerebellum of PURA(-/-) mice versus those of age-matched +/+ littermates, and lamination of these regions is aberrant at time of death. Immunohistochemical analysis of MCM7, a protein marker for DNA replication, reveals a lack of proliferation of precursor cells in these regions in the PURA(-/-) mice. Levels of proliferation were also absent or low in several other tissues of the PURA(-/-) mice, including those of myeloid lineage, whereas those of PURA(+/-) mice were intermediate. Evaluation of brain sections indicates a reduction in myelin and glial fibrillary acidic protein labeling in oligodendrocytes and astrocytes, respectively, indicating pathological development of these cells. At postnatal day 5, a critical time for cerebellar development, Puralpha and Cdk5 were both at peak levels in bodies and dendrites of Purkinje cells of PURA(+/+) mice, but both were absent in dendrites of PURA(-/-) mice. Puralpha and Cdk5 can be coimmunoprecipitated from brain lysates of PURA(+/+) mice. Immunohistochemical studies reveal a dramatic reduction in the level of both phosphorylated and nonphosphorylated neurofilaments in dendrites of the Purkinje cell layer and of synapse formation in the hippocampus. Overall results are consistent with a role for Puralpha in developmentally timed DNA replication in specific cell types and also point to a newly emerging role in compartmentalized RNA transport and translation in neuronal dendrites.

Indexed as

AnimalsBody WeightBrainCell Cycle ProteinsCell DivisionCerebellumCyclic AMP Response Element-Binding ProteinCyclin-Dependent Kinase 5Cyclin-Dependent KinasesDendritesDNA-Binding ProteinsDNA ReplicationGene DeletionGene Expression Regulation, DevelopmentalGene SilencingGenotypeCdk5 protein, mouseCell Cycle ProteinsCyclic AMP Response Element-Binding ProteinCyclin-Dependent Kinase 5Cyclin-Dependent KinasesDNA-Binding ProteinsGlial Fibrillary Acidic ProteinMcm7 protein, mouseMinichromosome Maintenance Complex Component 7Nerve Tissue ProteinsNuclear ProteinsPura protein, mouseTranscription Factors

Identifiers

PMID12972605
PMCPMC193944
OpenAlexW2146683128

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.