Evidence map›Paper›PMID 28416701›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

Defective synaptic connectivity and axonal neuropathology in a human iPSC-based model of familial Parkinson's disease.

Georgia Kouroupi, Era Taoufik, Ioannis S Vlachos, Konstantinos Tsioras, Nasia Antoniou, Florentia Papastefanaki, Dafni Chroni-Tzartou, Wolfgang Wrasidlo, Delphine Bohl, Dimitris Stellas and 8 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed, 1 pooled it
9.8field-weighted citation impact, top 1% 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

92 citing papers in PubMed, 1 synthesis or guideline pooled it, 156 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Current Development of iPSC-Based Modeling in Neurodegenerative Diseases.International journal of molecular sciences · 2025
    Review
  10. Stem Cell-Based Approaches in Parkinson's Disease Research.International journal of stem cells · 2025
    Review
  11. Article
  12. Frontiers in neuroscience · 2025
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
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  19. Article
  20. Review

32 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

18 authors at 7 institutions in 3 countries.

Georgia KouroupiDepartment of Neurobiology, Hellenic Pasteur Institute, 11521 Athens, Greece.
Era TaoufikDepartment of Neurobiology, Hellenic Pasteur Institute, 11521 Athens, Greece.
Ioannis S VlachosDIANA-Lab, Hellenic Pasteur Institute, 11521 Athens, Greece.
Konstantinos TsiorasDepartment of Neurobiology, Hellenic Pasteur Institute, 11521 Athens, Greece.
Nasia AntoniouDepartment of Neurobiology, Hellenic Pasteur Institute, 11521 Athens, Greece.
Florentia PapastefanakiDepartment of Neurobiology, Hellenic Pasteur Institute, 11521 Athens, Greece.
Dafni Chroni-TzartouDepartment of Neurobiology, Hellenic Pasteur Institute, 11521 Athens, Greece.
Wolfgang WrasidloDepartment of Neurosciences, University of California, San Diego, La Jolla, CA 92093.
Delphine BohlInstitut Pasteur, 75015 Paris, France.
Dimitris StellasDepartment of Cancer Biology, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece.ORCID 0000-0002-9587-6288
Panagiotis K PolitisCenter for Basic Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece.
Kostas VekrellisCenter of Clinical Research, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece.
Dimitra PapadimitriouNeurology Clinic, Henry Dunant Hospital Center, 11526 Athens, Greece.
Leonidas StefanisCenter of Clinical Research, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece.
Piotr BregestovskiAix-Marseille Université, INSERM, Institut de Neurosciences des Systèmes, 13005 Marseille, France.
Artemis G HatzigeorgiouDIANA-Lab, Hellenic Pasteur Institute, 11521 Athens, Greece.
Eliezer MasliahDepartment of Neurosciences, University of California, San Diego, La Jolla, CA 92093.
Rebecca MatsasDepartment of Neurobiology, Hellenic Pasteur Institute, 11521 Athens, Greece; rmatsa@pasteur.gr.
Pasteur Hellenic Institute · GRAcademy of Athens · GRNational and Kapodistrian University of Athens · GRUniversity of California San Diego · USHenry Dunant Hospital · GRInserm · FRInstitut Pasteur · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

α-Synuclein (αSyn) is the major gene linked to sporadic Parkinson's disease (PD), whereas the G209A (p.A53T) αSyn mutation causes a familial form of PD characterized by early onset and a generally severe phenotype, including nonmotor manifestations. Here we generated de novo induced pluripotent stem cells (iPSCs) from patients harboring the p.A53T mutation and developed a robust model that captures PD pathogenic processes under basal conditions. iPSC-derived mutant neurons displayed novel disease-relevant phenotypes, including protein aggregation, compromised neuritic outgrowth, and contorted or fragmented axons with swollen varicosities containing αSyn and Tau. The identified neuropathological features closely resembled those in brains of p.A53T patients. Small molecules targeting αSyn reverted the degenerative phenotype under both basal and induced stress conditions, indicating a treatment strategy for PD and other synucleinopathies. Furthermore, mutant neurons showed disrupted synaptic connectivity and widespread transcriptional alterations in genes involved in synaptic signaling, a number of which have been previously linked to mental disorders, raising intriguing implications for potentially converging disease mechanisms.

Indexed as

Models, BiologicalMutation, MissenseSynaptic Transmissionalpha-SynucleinAmino Acid SubstitutionAxonsHumansInduced Pluripotent Stem CellsParkinson DiseasePolyneuropathiesalpha-SynucleinSNCA protein, humanaxonal degenerationdystrophic neuritesParkinson’s diseasesmall moleculesα-synuclein

Identifiers

PMID28416701
PMCPMC5422768
OpenAlexW2606032846

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.