Evidence map›Paper›PMID 31585092›Full record

ReviewCell stem cell2019

Transplantation of Human Brain Organoids: Revisiting the Science and Ethics of Brain Chimeras.

H Isaac Chen, John A Wolf, Rachel Blue, Mingyan Maggie Song, Jonathan D Moreno, Guo-Li Ming, Hongjun Song

Abstract readReview
In one paragraph

Review in Cell stem cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

51 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Organoids: a systematic review of ethical issues.Stem cell research & therapy · 2022
    Pooled it
  4. Media portrayal of ethical and social issues in brain organoid research.Philosophy, ethics, and humanities in medicine : PEHM · 2022
    Pooled it
  5. Article
  6. Review
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  9. Organoid Brain-Machine-Interface Devices for Central Nervous System Repair.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Review
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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.

H Isaac ChenDepartment of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, USA. Electronic address: isaac.chen@pennmedicine.upenn.edu.
John A WolfDepartment of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, USA.
Rachel BlueDepartment of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Mingyan Maggie SongDepartment of Neuroscience, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Jonathan D MorenoDepartment of Medical Ethics and Health Policy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Philosophy, University of Pennsylvania, Philadelphia, PA 19104, USA.
Guo-Li MingInstitute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Neuroscience, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Hongjun SongInstitute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Neuroscience, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; The Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.

Funding

Role of CACNA1C - a shared risk gene in neuropsychiatric disordersU19MH106434 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI SONG, HONGJUN · 2016 to 2020
$13.8M
Continuous Neurogenesis in the Mammalian HippocampusR35NS116843 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI HONGJUN SONG · 2020 to 2026
$6.9M
Designing Neural Tissue Constructs that Mimic Brain-Specific ArchitectureIK2RX002013 · VA · PHILADELPHIA VA MEDICAL CENTER · PI CHEN, HAN-CHIAO ISAAC · 2016 to 2021
–
NIMH NIH HHS U19 MH106434NINDS NIH HHS R35 NS116843RRD VA IK2 RX002013
6 · The paper itself

Abstract

Recent demonstrations of human brain organoid transplantation in rodents have accentuated ethical concerns associated with these entities, especially as they relate to potential "humanization" of host animals. Consideration of established scientific principles can help define the realistic range of expected outcomes in such transplantation studies. This practical approach suggests that augmentation of discrete brain functions in transplant hosts is a more relevant ethical question in the near term than the possibility of "conscious" chimeric animals. We hope that this framework contributes to a balanced approach for proceeding with studies involving brain organoid transplantation and other forms of human-animal brain chimeras.

Indexed as

AnimalsBrainBrain Tissue TransplantationChimeraConsciousnessDisease Models, AnimalEthics, ResearchHumansMiceOrganoidsPractice Guidelines as TopicRatsTransplantation, Heterologousbrain organoidchimeraconsciousnessenhancementethicstransplantation

Identifiers

PMID31585092
PMCPMC7180006

What OpenQuestion holds

Textmetadata
LicenceTDM
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.