Evidence map›Paper›PMID 31875567›Full record

ArticleCell reports2019

Reconstitution of the Human Nigro-striatal Pathway on-a-Chip Reveals OPA1-Dependent Mitochondrial Defects and Loss of Dopaminergic Synapses.

Angelo Iannielli, Giovanni Stefano Ugolini, Chiara Cordiglieri, Simone Bido, Alicia Rubio, Gaia Colasante, Marco Valtorta, Tommaso Cabassi, Marco Rasponi, Vania Broccoli

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

34 citing papers in PubMed, 63 citations in OpenAlex.

  1. Mitochondrial molecular diversity in the brain.Current opinion in neurobiology · 2026
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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

10 authors at 4 institutions in 1 country.

Angelo IannielliStem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy; CNR Institute of Neuroscience, 20129 Milan, Italy.
Giovanni Stefano UgoliniDepartment of Electronics, Information & Bioengineering, Politecnico di Milano, 20133 Milan, Italy.
Chiara CordiglieriNational Institute of Molecular Genetics "Romeo e Enrica Invernizzi" - INGM, 20122 Milan, Italy.
Simone BidoStem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy.
Alicia RubioStem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy; CNR Institute of Neuroscience, 20129 Milan, Italy.
Gaia ColasanteStem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy.
Marco ValtortaStem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy; CNR Institute of Neuroscience, 20129 Milan, Italy.
Tommaso CabassiStem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy.
Marco RasponiDepartment of Electronics, Information & Bioengineering, Politecnico di Milano, 20133 Milan, Italy.
Vania BroccoliStem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy; CNR Institute of Neuroscience, 20129 Milan, Italy. Electronic address: broccoli.vania@hsr.it.
Vita-Salute San Raffaele University · ITNeuroscience Institute · ITPolitecnico di Milano · ITIstituto Nazionale Genetica Molecolare · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stem cell-derived neurons are generally obtained in mass cultures that lack both spatial organization and any meaningful connectivity. We implement a microfluidic system for long-term culture of human neurons with patterned projections and synaptic terminals. Co-culture of human midbrain dopaminergic and striatal medium spiny neurons on the microchip establishes an orchestrated nigro-striatal circuitry with functional dopaminergic synapses. We use this platform to dissect the mitochondrial dysfunctions associated with a genetic form of Parkinson's disease (PD) with OPA1 mutations. Remarkably, we find that axons of OPA1 mutant dopaminergic neurons exhibit a significant reduction of mitochondrial mass. This defect causes a significant loss of dopaminergic synapses, which worsens in long-term cultures. Therefore, PD-associated depletion of mitochondria at synapses might precede loss of neuronal connectivity and neurodegeneration. In vitro reconstitution of human circuitries by microfluidic technology offers a powerful system to study brain networks by establishing ordered neuronal compartments and correct synapse identity.

Indexed as

Lab-On-A-Chip DevicesAxonsCells, CulturedDopaminergic NeuronsGTP PhosphohydrolasesHumansInduced Pluripotent Stem CellsMitochondriaMutationNeostriatumNerve NetNeuritesParkinson DiseaseSubstantia NigraSynapsesGTP PhosphohydrolasesOPA1 protein, human

Identifiers

PMID31875567
PMCPMC6941223
OpenAlexW2996888186

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.