Evidence map›Paper›PMID 35626637›Full record

ArticleCells2022

Long-Term Evaluation of Intranigral Transplantation of Human iPSC-Derived Dopamine Neurons in a Parkinson's Disease Mouse Model.

Sébastien Brot, Nabila Pyrenina Thamrin, Marie-Laure Bonnet, Maureen Francheteau, Maëlig Patrigeon, Laure Belnoue, Afsaneh Gaillard

Open access · goldAbstract read
In one paragraph

Article in Cells, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Sébastien BrotLaboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, INSERM 1084, 86022 Poitiers, France.ORCID 0000-0002-4373-2135
Nabila Pyrenina ThamrinLaboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, INSERM 1084, 86022 Poitiers, France.ORCID 0000-0002-0296-6998
Marie-Laure BonnetLaboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, INSERM 1084, 86022 Poitiers, France.
Maureen FrancheteauLaboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, INSERM 1084, 86022 Poitiers, France.
Maëlig PatrigeonLaboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, INSERM 1084, 86022 Poitiers, France.
Laure BelnoueLaboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, INSERM 1084, 86022 Poitiers, France.
Afsaneh GaillardLaboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, INSERM 1084, 86022 Poitiers, France.ORCID 0000-0002-9375-6506
Inserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parkinson's disease (PD) is a neurodegenerative disorder associated with loss of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNpc). One strategy for treating PD is transplantation of DA neuroblasts. Significant advances have been made in generating midbrain DA neurons from human pluripotent stem cells. Before these cells can be routinely used in clinical trials, extensive preclinical safety studies are required. One of the main issues to be addressed is the long-term therapeutic effectiveness of these cells. In most transplantation studies using human cells, the maturation of DA neurons has been analyzed over a relatively short period not exceeding 6 months. In present study, we generated midbrain DA neurons from human induced pluripotent stem cells (hiPSCs) and grafted these neurons into the SNpc in an animal model of PD. Graft survival and maturation were analyzed from 1 to 12 months post-transplantation (mpt). We observed long-term survival and functionality of the grafted neurons. However, at 12 mpt, we observed a decrease in the proportion of SNpc DA neuron subtype compared with that at 6 mpt. In addition, at 12 mpt, grafts still contained immature neurons. Our results suggest that longer-term evaluation of the maturation of neurons derived from human stem cells is mandatory for the safe application of cell therapy for PD.

Indexed as

Induced Pluripotent Stem CellsParkinson DiseaseAnimalsDisease Models, AnimalDopaminergic NeuronsHumansMesencephalonMicebrain repairdopaminergic neuronsinduced pluripotent stem cellsParkinson’s diseaserecovery

Identifiers

PMID35626637
PMCPMC9140181
OpenAlexW4280535518

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.