Evidence map›Paper›PMID 34480088›Full record

ArticleMolecular psychiatry2021

Integrative brain transcriptome analysis links complement component 4 and HSPA2 to the APOE ε2 protective effect in Alzheimer disease.

Rebecca Panitch, Junming Hu, Jaeyoon Chung, Congcong Zhu, Gaoyuan Meng, Weiming Xia, David A Bennett, Kathryn L Lunetta, Tsuneya Ikezu, Rhoda Au and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Molecular psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 3 pooled it
4.8field-weighted citation impact, top 4% 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

38 citing papers in PubMed, 3 syntheses or guidelines pooled it, 58 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Systematic review and meta-analysis of bulk RNAseq studies in human Alzheimer's disease brain tissue.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Pooled it
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  7. Review
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  10. Alzheimer's disease multi-ancestry genome-wide interaction and stratified study with smoking.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  11. Article
  12. Article
  13. Genome-wide pleiotropy analysis of longitudinal blood pressure and harmonized cognitive performance measures.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  14. Emerging Role of Oligodendrocytes Malfunction in the Progression of Alzheimer's Disease.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025
    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

13 authors at 2 institutions in 1 country.

Rebecca PanitchDepartment of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, MA, USA.
Junming HuDepartment of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, MA, USA.
Jaeyoon ChungDepartment of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, MA, USA.ORCID http://orcid.org/0000-0002-6431-9454
Congcong ZhuDepartment of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, MA, USA.
Gaoyuan MengDepartment of Veterans Affairs Medical Center, Bedford, MA, USA.
Weiming XiaDepartment of Veterans Affairs Medical Center, Bedford, MA, USA.
David A BennettRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, USA.
Kathryn L LunettaDepartment of Biostatistics, Boston University School of Public Health, Boston, MA, USA.ORCID http://orcid.org/0000-0002-9268-810X
Tsuneya IkezuDepartment of Pharmacology & Experimental Therapeutics, Boston University School of Medicine, Boston, MA, USA.ORCID http://orcid.org/0000-0002-3979-8596
Rhoda AuDepartment of Neurology, Boston University School of Medicine, Boston, MA, USA.
Thor D SteinDepartment of Veterans Affairs Medical Center, Bedford, MA, USA.
Lindsay A FarrerDepartment of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, MA, USA. farrer@bu.edu.ORCID http://orcid.org/0000-0001-5533-4225
Gyungah R JunDepartment of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, MA, USA. gyungah@bu.edu.ORCID http://orcid.org/0000-0002-3230-8697
Boston University · USRush University Medical Center · US

Funding

Vascular Structure and Function in Cognitive AgingP01AG003949 · NIA · YESHIVA UNIVERSITY · PI CAROL A. DERBY · 1985 to 2026
$73.9M
Alzheimer's Disease Genetics ConsortiumU01AG032984 · NIA · UNIVERSITY OF PENNSYLVANIA · PI SCHELLENBERG, GERARD DAVID · 2009 to 2024
$60.4M
SUPPLEMENT TO ALZHEIMERS DISEASE PATIENT REGISTRYU01AG006786 · NIA · MAYO CLINIC ROCHESTER · PI GRAFF-RADFORD, JONATHAN, JACK, CLIFFORD R. · 1986 to 2023
$49.6M
SUPPLEMENT TO RUSH ALZHEIMERS DISEASE CENTER COREP30AG010161 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI LEURGANS, SUE E. · 1991 to 2020
$49.1M
EPIDEMIOLOGY OF NEURAL RESERVE AND NEUROBIOLOGY IN AGINGR01AG017917 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI BENNETT, DAVID ALAN · 2001 to 2023
$43.3M
TBDU19AG068753 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI Thor Stein · 2020 to 2026
$42.4M
THE PGRN/TDP-43 AXIS IN ALZHEIMER?S DISEASE AND NEURODEGENERATIONP50AG016574 · NIA · MAYO CLINIC ROCHESTER · PI PETERSEN, RONALD C · 1999 to 2018
$36.9M
FRAMINGHAM HEART STUDY - YEAR 5 EXAM75N92019D00031 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · 2019 to 2024
$29.8M
Neuropathology CoreP30AG013846 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI KOWALL, NEIL W. · 1996 to 2020
$29.1M
RL5: Research Education CoreP30AG072978 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI Ann C. McKee · 2021 to 2026
$25.6M
Integrating the exposome and methylome to inform brain molecular changes in ADRD across established diverse cohorts.U01AG046139 · NIA · UNIVERSITY OF FLORIDA · PI ERTEKIN-TANER, NILUFER, FUNK, CORY · 2013 to 2022
$24.6M
South Texas Alzheimer's Disease Research CenterP30AG066546 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Mohamad Habes · 2021 to 2026
$24.0M
CSRD VA I01 CX001038NHLBI NIH HHS 75N92019D00031NHLBI NIH HHS HHSN268201000011CNHLBI NIH HHS HHSN268201500001CNHLBI NIH HHS HHSN268201500001INHLBI NIH HHS HHSN268201500011CNIA NIH HHS P01 AG003949NIA NIH HHS P01 AG017216NIA NIH HHS P30 AG010161NIA NIH HHS P30 AG013846NIA NIH HHS P30 AG066546NIA NIH HHS P30 AG072978NIA NIH HHS P50 AG016574NIA NIH HHS P50 AG025711NIA NIH HHS R01 AG008122NIA NIH HHS R01 AG015819NIA NIH HHS R01 AG017917NIA NIH HHS R01 AG018023NIA NIH HHS R01 AG030146NIA NIH HHS R01 AG032990NIA NIH HHS R01 AG036836NIA NIH HHS R01 AG048927NIA NIH HHS R01 AG054076NIA NIH HHS R01 AG054672NIA NIH HHS R01 AG066429NIA NIH HHS RF1 AG054156NIA NIH HHS RF1 AG054199NIA NIH HHS RF1 AG057519NIA NIH HHS RF1 AG057768NIA NIH HHS U01 AG006786NIA NIH HHS U01 AG032984NIA NIH HHS U01 AG046139NIA NIH HHS U01 AG046152NIA NIH HHS U01 AG058654NIA NIH HHS U01 AG062602NIA NIH HHS U19 AG068753NINDS NIH HHS R01 NS080820
6 · The paper itself

Abstract

Mechanisms underlying the protective effect of apolipoprotein E (APOE) ε2 against Alzheimer disease (AD) are not well understood. We analyzed gene expression data derived from autopsied brains donated by 982 individuals including 135 APOE ɛ2/ɛ3 carriers. Complement pathway genes C4A and C4B were among the most significantly differentially expressed genes between ɛ2/ɛ3 AD cases and controls. We also identified an APOE ε2/ε3 AD-specific co-expression network enriched for astrocytes, oligodendrocytes and oligodendrocyte progenitor cells containing the genes C4A, C4B, and HSPA2. These genes were significantly associated with the ratio of phosphorylated tau at position 231 to total Tau but not with amyloid-β 42 level, suggesting this APOE ɛ2 related co-expression network may primarily be involved with tau pathology. HSPA2 expression was oligodendrocyte-specific and significantly associated with C4B protein. Our findings provide the first evidence of a crucial role of the complement pathway in the protective effect of APOE ε2 for AD.

Indexed as

Alzheimer DiseaseApolipoprotein E2Complement C4HSP70 Heat-Shock ProteinsBrainGene Expression ProfilingGenotypeHumansApolipoprotein E2Complement C4HSP70 Heat-Shock ProteinsHSPA2 protein, human

Identifiers

PMID34480088
PMCPMC8758485
OpenAlexW3197706138

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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.