Evidence map›Paper›PMID 18583990›Full record

ArticleCell death and differentiation2008

The chemokine CXCL12 promotes survival of postmitotic neurons by regulating Rb protein.

M Z Khan, R Brandimarti, S Shimizu, J Nicolai, E Crowe, O Meucci

Open access · bronzeAbstract read
In one paragraph

Article in Cell death and differentiation, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

48 citing papers in PubMed, 95 citations in OpenAlex.

  1. Article
  2. CXCL12 Engages Cortical Inhibitory Neurons to Enhance Dendritic Spine Plasticity and Structured Network Activity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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  7. Opioid Modulation of Neuronal Iron and Potential Contributions to NeuroHIV.Methods in molecular biology (Clifton, N.J.) · 2021
    Review
  8. Review
  9. Article
  10. Article
  11. CXCR4 involvement in neurodegenerative diseases.Translational psychiatry · 2018
    Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. The Impact of CXCR4 Blockade on the Survival of Rat Brain Cortical Neurons.International journal of molecular sciences · 2016
    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

6 authors at 2 institutions in 2 countries.

M Z KhanDepartment of Pharmacology and Physiology, Drexel University College of Medicine, 245 North 15th Street, Philadelphia, PA 19102, USA.
R Brandimarti
S Shimizu
J Nicolai
E Crowe
O Meucci
Drexel University · USUniversity of Bologna · IT

Funding

Role of chemokine receptors in neuronal survivalR01DA015014 · NIDA · MCP HAHNEMANN UNIVERSITY · PI MEUCCI, OLIMPIA · 2001 to 2017
$4.3M
Role of chemokines in neuronal function and survivalR37DA015014 · NIDA · DREXEL UNIVERSITY · PI Olimpia Meucci · 2018 to 2026
$3.7M
Cellular and Molecular Mechanisms of HIV NeuropathologyR01DA019808 · NIDA · DREXEL UNIVERSITY · PI MEUCCI, OLIMPIA · 2004 to 2008
$1.8M
NIDA NIH HHS DA15014NIDA NIH HHS DA19808NIDA NIH HHS R01 DA015014NIDA NIH HHS R01 DA019808NIDA NIH HHS R37 DA015014
6 · The paper itself

Abstract

Postmitotic neurons need to keep their cell cycle under control to survive and maintain a differentiated state. This study aims to test the hypothesis that the chemokine CXCL12 regulates neuronal survival and differentiation by promoting Rb function, as suggested by previous studies showing that CXCL12 protects neurons from apoptosis induced by Rb loss. To this end, the effect of CXCL12 on Rb expression and transcriptional activity and the role of Rb in CXCL12-induced neuronal survival were studied. CXCL12 increases Rb protein and RNA levels in rat cortical neurons. The chemokine also stimulates an exogenous Rb promoter expressed in these neurons and counteracts the inhibition of the Rb promoter induced by E2F1 overexpression. Furthermore CXCL12 stimulates Rb activity as a transcription repressor. The effects of CXCL12 are mediated by its specific receptor CXCR4, and do not require the presence of glia. Finally, shRNA studies show that Rb expression is crucial to the neuroprotective activity of CXCL12 as indicated by NMDA-neurotoxicity assays. These findings suggest that proper CXCR4 stimulation in the mature CNS can prevent impairment of the Rb-E2F pathway and support neuronal survival. This is important to maintain CNS integrity in physiological conditions and prevent neuronal injury and loss typical of many neurodegenerative and neuroinflammatory conditions.

Indexed as

AnimalsCell CycleCell DifferentiationCells, CulturedCell SurvivalCerebral CortexChemokine CXCL12Gene Expression RegulationGene SilencingNeuronsN-MethylaspartatePromoter Regions, GeneticRatsReceptors, CXCR4Recombinant Fusion ProteinsRetinoblastoma ProteinChemokine CXCL12Cxcr4 protein, ratN-MethylaspartateReceptors, CXCR4Recombinant Fusion ProteinsRetinoblastoma Protein

Identifiers

PMID18583990
PMCPMC2676689
OpenAlexW1976686309

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.