Evidence map›Paper›PMID 27978547›Full record

ArticleJAMA facial plastic surgery2017

Human Induced Pluripotent Stem Cell-Derived Motor Neuron Transplant for Neuromuscular Atrophy in a Mouse Model of Sciatic Nerve Injury.

Jon-Paul Pepper, Tiffany V Wang, Valerie Hennes, Soo Yeon Sun, Justin K Ichida

Open access · greenAbstract read
In one paragraph

Article in JAMA facial plastic surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

13 citing papers in PubMed, 25 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

5 authors at 2 institutions in 1 country.

Jon-Paul PepperUSC (University of Southern California) Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine, USC, Los Angeles.
Tiffany V WangUSC (University of Southern California) Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine, USC, Los Angeles.
Valerie HennesDepartment of Regenerative Medicine and Stem Cell Biology, Broad CIRM (California Institute for Regenerative Medicine) Center, Keck School of Medicine, USC, Los Angeles.
Soo Yeon SunDivision of Biokinesiology and Physical Therapy, Herman Ostrow School of Dentistry, USC, Los Angeles.
Justin K IchidaDepartment of Regenerative Medicine and Stem Cell Biology, Broad CIRM (California Institute for Regenerative Medicine) Center, Keck School of Medicine, USC, Los Angeles.
California Institute for Regenerative Medicine · USUniversity of Southern California · US

Funding

Validating Secretory Autophagy as a Therapeutic Strategy for Diverse Forms of ALS and FTDR01NS097850 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ICHIDA, JUSTIN KAWIKA · 2016 to 2024
$5.5M
Conversion of Fibroblasts to fxnal Spinal Motor Neurons Using Defined FactorR00NS077435 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ICHIDA, JUSTIN KAWIKA · 2013 to 2015
$737k
NINDS NIH HHS R00 NS077435NINDS NIH HHS R01 NS097850
6 · The paper itself

Abstract

importanceHuman motor neurons may be reliably derived from induced pluripotent stem cells (iPSCs). In vivo transplant studies of human iPSCs and their cellular derivatives are essential to gauging their clinical utility.

objectiveTo determine whether human iPSC-derived motor neurons can engraft in an immunodeficient mouse model of sciatic nerve injury. DESIGN, SETTING, AND SUBJECTS: This nonblinded interventional study with negative controls was performed at a biomedical research institute using an immunodeficient, transgenic mouse model. Induced pluripotent stem cell-derived motor neurons were cultured and differentiated. Cells were transplanted into 32 immunodeficient mice with sciatic nerve injury aged 6 to 15 weeks. Tissue analysis was performed at predetermined points after the mice were killed humanely. Animal experiments were performed from February 24, 2015, to May 2, 2016, and data were analyzed from April 7, 2015, to May 27, 2016.

interventionsHuman iPSCs were used to derive motor neurons in vitro before transplant. MAIN OUTCOMES AND MEASURES: Evidence of engraftment based on immunohistochemical analysis (primary outcome measure); evidence of neurite outgrowth and neuromuscular junction formation (secondary outcome measure); therapeutic effect based on wet muscle mass preservation and/or electrophysiological evidence of nerve and muscle function (exploratory end point).

resultsIn 13 of the 32 mice undergoing the experiment, human iPSC-derived motor neurons successfully engrafted and extended neurites to target denervated muscle. Human iPSC-derived motor neurons reduced denervation-induced muscular atrophy (mean [SD] muscle mass preservation, 54.2% [4.0%]) compared with negative controls (mean [SD] muscle mass preservation, 33.4% [2.3%]) (P = .04). No electrophysiological evidence of muscle recovery was found. CONCLUSIONS AND RELEVANCE: Human iPSC-derived motor neurons may have future use in the treatment of peripheral motor nerve injury, including facial paralysis. LEVEL OF EVIDENCE: NA.

Indexed as

AnimalsCells, CulturedDisease Models, AnimalHumansImmunohistochemistryInduced Pluripotent Stem CellsMiceMice, TransgenicMotor NeuronsMuscle DenervationMuscle, SkeletalMuscular AtrophyPeripheral Nerve InjuriesSciatic Nerve

Identifiers

PMID27978547
PMCPMC5815137
OpenAlexW2561298198

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.