Evidence map›Paper›PMID 28444230›Full record

ArticleHuman molecular genetics2017

APOE ε4/ε4 diminishes neurotrophic function of human iPSC-derived astrocytes.

Jing Zhao, Mary D Davis, Yuka A Martens, Mitsuru Shinohara, Neill R Graff-Radford, Steven G Younkin, Zbigniew K Wszolek, Takahisa Kanekiyo, Guojun Bu

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 143 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
143citing papers in PubMed, 2 pooled it
10.3field-weighted citation impact, top 1% 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

143 citing papers in PubMed, 2 syntheses or guidelines pooled it, 215 citations in OpenAlex.

  1. Pooled it
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  15. Astrocytes as Therapeutic Targets in Neurodegenerative Disorders.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Review
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83 more citing papers are in PubMed but not listed here.

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

9 authors at 1 institution in 1 country.

Jing ZhaoDepartment of Neuroscience.
Mary D DavisDepartment of Neuroscience.
Yuka A MartensDepartment of Neuroscience.
Mitsuru ShinoharaDepartment of Neuroscience.
Neill R Graff-RadfordDepartment of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA.
Steven G YounkinDepartment of Neuroscience.
Zbigniew K WszolekDepartment of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA.
Takahisa KanekiyoDepartment of Neuroscience.
Guojun BuDepartment of Neuroscience.
Mayo Clinic in Florida · US

Funding

THE PGRN/TDP-43 AXIS IN ALZHEIMER?S DISEASE AND NEURODEGENERATIONP50AG016574 · NIA · MAYO CLINIC ROCHESTER · PI BU, GUOJUN · 1999 to 2018
$36.9M
Longitudinal Evaluation of Familial Frontotemporal Dementia Subjects (LEFFTDS)U01AG045390 · NIA · MAYO CLINIC ROCHESTER · PI BOEVE, BRADLEY F, ROSEN, HOWARD J · 2014 to 2018
$16.9M
Viral Vectors CoreP01NS074969 · NINDS · WASHINGTON UNIVERSITY · PI SNIDER, BARBARA JOY · 2012 to 2021
$13.0M
Integrative translational discovery of vascular risk factors in aging and dementiaRF1AG051504 · NIA · MAYO CLINIC JACKSONVILLE · PI BU, GUOJUN, ERTEKIN-TANER, NILUFER · 2015 to 2019
$9.8M
Neuropathology CoreP50NS072187 · NINDS · MAYO CLINIC JACKSONVILLE · PI DICKSON, DENNIS WILLIAM · 2010 to 2017
$8.7M
ApoE Receptor Pathways to Intraneuronal AbetaR01AG027924 · NIA · WASHINGTON UNIVERSITY · PI LI, YONGHE · 2006 to 2021
$3.7M
BRAIN LIPID METABOLISM, DENDRITES AND SYNAPSES IN AGING AND ALZHEIMER'S DISEASER01AG035355 · NIA · MAYO CLINIC JACKSONVILLE · PI BU, GUOJUN · 2010 to 2019
$3.1M
ApoE isoform-specific therapy for Alzheimer diseaseR01AG046205 · NIA · MAYO CLINIC JACKSONVILLE · PI BU, GUOJUN · 2013 to 2017
$1.6M
Reverse apoE4 effects by apoE2 expression in Alzheimer's diseaseR21AG052423 · NIA · MAYO CLINIC JACKSONVILLE · PI KANEKIYO, TAKAHISA · 2016 to 2017
$430k
NIA NIH HHS P50 AG016574NIA NIH HHS R01 AG027924NIA NIH HHS R01 AG035355NIA NIH HHS R01 AG046205NIA NIH HHS R21 AG052423NIA NIH HHS RF1 AG051504NIA NIH HHS U01 AG045390NINDS NIH HHS P01 NS074969NINDS NIH HHS P50 NS072187
6 · The paper itself

Abstract

The ε4 allele of the APOE gene encoding apolipoprotein E (apoE) is a strong genetic risk factor for aging-related cognitive decline as well as late-onset Alzheimer's disease (AD) compared to the common ε3 allele. In the central nervous system, apoE is produced primarily by astrocytes and functions in transporting lipids including cholesterol to support neuronal homeostasis and synaptic integrity. Although mouse models and corresponding primary cells have provided valuable tools for studying apoE isoform-dependent functions, recent studies have shown that human astrocytes have a distinct gene expression profile compare with rodent astrocytes. Human induced pluripotent stem cells (iPSCs) derived from individuals carrying specific gene variants or mutations provide an alternative cellular model more relevant to humans upon differentiation into specific cell types. Thus, we reprogramed human skin fibroblasts from cognitively normal individuals carrying APOE ε3/ε3 or ε4/ε4 genotype to iPSC clones and further differentiated them into neural progenitor cells and then astrocytes. We found that human iPSC-derived astrocytes secreted abundant apoE with apoE4 lipoprotein particles less lipidated compared to apoE3 particles. More importantly, human iPSC-derived astrocytes were capable of promoting neuronal survival and synaptogenesis when co-cultured with iPSC-derived neurons with APOE ε4/ε4 astrocytes less effective in supporting these neurotrophic functions than those with APOE ε3/ε3 genotype. Taken together, our findings demonstrate APOE genotype-dependent effects using human iPSC-derived astrocytes and provide novel evidence that the human iPSC-based model system is a strong tool to explore how apoE isoforms contribute to neurodegenerative diseases.

Indexed as

AllelesApolipoprotein E3Apolipoprotein E4AstrocytesCells, CulturedCoculture TechniquesGenotypeHumansInduced Pluripotent Stem CellsNeuronsApolipoprotein E3Apolipoprotein E4

Identifiers

PMID28444230
PMCPMC5886091
OpenAlexW2607261398

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.