Cited by 241Pluripotent Stem Cells ResearchNeurogenesis and neuroplasticity mechanismsMesenchymal stem cell research

Human induced pluripotent stem cell-derived cortical neurons integrate in stroke-injured cortex and improve functional recovery

Open access

Abstract

Stem cell-based approaches to restore function after stroke through replacement of dead neurons require the generation of specific neuronal subtypes. Loss of neurons in the cerebral cortex is a major cause of stroke-induced neurological deficits in adult humans. Reprogramming of adult human somatic cells to induced pluripotent stem cells is a novel approach to produce patient-specific cells for autologous transplantation. Whether such cells can be converted to functional cortical neurons that survive and give rise to behavioural recovery after transplantation in the stroke-injured cerebral cortex is not known. We have generated progenitors in vitro, expressing specific cortical markers and giving rise to functional neurons, from long-term self-renewing neuroepithelial-like stem cells, produced from adult human fibroblast-derived induced pluripotent stem cells. At 2 months after transplantation into the stroke-damaged rat cortex, the cortically fated cells showed less proliferation and more efficient conversion to mature neurons with morphological and immunohistochemical characteristics of a cortical phenotype and higher axonal projection density as compared with non-fated cells. Pyramidal morphology and localization of the cells expressing the cortex-specific marker TBR1 in a certain layered pattern provided further evidence supporting the cortical phenotype of the fated, grafted cells, and electrophysiological recordings demonstrated their functionality. Both fated and non-fated cell-transplanted groups showed bilateral recovery of the impaired function in the stepping test compared with vehicle-injected animals. The behavioural improvement at this early time point was most likely not due to neuronal replacement and reconstruction of circuitry. At 5 months after stroke in immunocompromised rats, there was no tumour formation and the grafted cells exhibited electrophysiological properties of mature neurons with evidence of integration in host circuitry. Our findings show, for the first time, that human skin-derived induced pluripotent stem cells can be differentiated to cortical neuronal progenitors, which survive, differentiate to functional neurons and improve neurological outcome after intracortical implantation in a rat stroke model.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1093/brain/awt278

Cites

41 of 41 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Tornero, D., Wattananit, S., Grønning Madsen, M., Koch, P., Wood, J., Tatarishvili, J., Mine, Y., Ge, R., Monni, E., Devaraju, K., Hevner, R. F., Brüstle, O., Lindvall, O., & Kokaia, Z.
Affiliations
  • Skåne University Hospital (SE)
  • University of Bonn (DE)
  • Seattle Children's Research Institute (US)
Venue
Brain
Published
2013-10-21
Volume
136
Issue
12
Pages
3561-3577
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2045757887
Cited by
241
References
41
Citations by year
2026: 4 · 2025: 14 · 2024: 8 · 2023: 14 · 2022: 10 · 2021: 19 · 2020: 30 · 2019: 27 · 2018: 29 · 2017: 27 · 2016: 17 · 2015: 27 · 2014: 14 · 2013: 1
FWCI
8.82
Type
journal article
Language
en
Open access
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • Lund University Publications (Lund University) (submittedVersion)
Funders
  • Association of Fraternity/Sorority Advisors Foundation
  • European Commission (279017)
  • Deutsche Forschungsgemeinschaft (SFB TR 3)
  • Bundesministerium für Bildung und Forschung (01GN0813)
  • Vetenskapsrådet
  • Instituto de Salud Carlos III
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Pluripotent Stem Cells Research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Mesenchymal stem cell research
Keywords
stroke, induced pluripotent stem cells, cortical neurons, neural transplantation, functional recovery, Tbr1, axonal projections, electrophysiological maturation, rat stroke model, tumor formation
MeSH terms
Action Potentials, Animals, Cell Differentiation, Cells, Cultured, Cerebral Cortex, Disease Models, Animal, Electric Stimulation, Glutaminase, Humans, Neurons, Rats, Nude, Rats, Sprague-Dawley, Neurotransmitter Agents, Patch-Clamp Techniques, Recovery of Function, Infarction, Middle Cerebral Artery, Green Fluorescent Proteins, Rats, Induced Pluripotent Stem Cells

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review