Evidence map›Paper›PMID 26154133›Full record

ArticlePLoS pathogens2015

MiR-21 in Extracellular Vesicles Leads to Neurotoxicity via TLR7 Signaling in SIV Neurological Disease.

Sowmya V Yelamanchili, Benjamin G Lamberty, Deborah A Rennard, Brenda M Morsey, Colleen G Hochfelder, Brittney M Meays, Efrat Levy, Howard S Fox

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 98 papers.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed
5.3field-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

98 citing papers in PubMed, 139 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Extracellular vesicles as nodal mediators of neuroHIV pathogenesis: a perspective.Extracellular vesicles and circulating nucleic acids · 2026
    Article
  6. Extracellular RNAs as Messengers and Early Biomarkers in Neurodegeneration.International journal of molecular sciences · 2025
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. miR-574-5p in epigenetic regulation and Toll-like receptor signaling.Cell communication and signaling : CCS · 2024
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Research advances of tissue-derived extracellular vesicles in cancers.Journal of cancer research and clinical oncology · 2024
    Review
  19. Extracellular Vesicles: The Invisible Heroes and Villains of COVID-19 Central Neuropathology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Review
  20. Article

38 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Sowmya V YelamanchiliDepartment of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, United States of America. syelamanchili@unmc.edu
Benjamin G LambertyDepartment of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, United States of America.
Deborah A RennardDepartment of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, United States of America.
Brenda M MorseyDepartment of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, United States of America.
Colleen G HochfelderDepartment of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, United States of America.
Brittney M MeaysDepartment of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, United States of America.
Efrat LevyNathan S. Kline Institute, Orangeburg, New York, Departments of Pathology, Psychiatry, and Biochemistry and Molecular Pharmacology, New York University Langone Medical Center, New York, New York, United States of America.
Howard S FoxDepartment of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, United States of America.
University of Nebraska Medical Center · USNYU Langone Health · US

Funding

Therapeutics Core (Page 286)P30MH062261 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI GENDELMAN, HOWARD E · 2000 to 2021
$37.7M
Molecular Aspects of CNS Dysfunction Due to SIV/HIVR01MH073490 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI FOX, HOWARD S · 2005 to 2014
$3.9M
Elucidating the role of exosomal miR-21 in SIV/HIV neurological dysfunctionR21MH106422 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI FOX, HOWARD S, YELAMANCHILI, SOWMYA · 2015 to 2016
$414k
NIMH NIH HHS P30 MH062261NIMH NIH HHS R01 MH073490NIMH NIH HHS R21 MH106422
6 · The paper itself

Abstract

Recent studies have found that extracellular vesicles (EVs) play an important role in normal and disease processes. In the present study, we isolated and characterized EVs from the brains of rhesus macaques, both with and without simian immunodeficiency virus (SIV) induced central nervous system (CNS) disease. Small RNA sequencing revealed increased miR-21 levels in EVs from SIV encephalitic (SIVE) brains. In situ hybridization revealed increased miR-21 expression in neurons and macrophage/microglial cells/nodules during SIV induced CNS disease. In vitro culture of macrophages revealed that miR-21 is released into EVs and is neurotoxic when compared to EVs derived from miR-21-/- knockout animals. A mutation of the sequence within miR-21, predicted to bind TLR7, eliminates this neurotoxicity. Indeed miR-21 in EV activates TLR7 in a reporter cell line, and the neurotoxicity is dependent upon TLR7, as neurons isolated from TLR7-/- knockout mice are protected from neurotoxicity. Further, we show that EVs isolated from the brains of monkeys with SIV induced CNS disease activates TLR7 and were neurotoxic when compared to EVs from control animals. Finally, we show that EV-miR-21 induced neurotoxicity was unaffected by apoptosis inhibition but could be prevented by a necroptosis inhibitor, necrostatin-1, highlighting the actions of this pathway in a growing number of CNS disorders.

Indexed as

AnimalsBlotting, WesternBrainExtracellular VesiclesFluorescent Antibody TechniqueIn Situ Hybridization, FluorescenceMacaca mulattaMacrophagesMiceMice, KnockoutMicroRNAsMicroscopy, Electron, TransmissionReal-Time Polymerase Chain ReactionSignal TransductionSimian Acquired Immunodeficiency SyndromeSimian Immunodeficiency VirusMicroRNAsToll-Like Receptor 7

Identifiers

PMID26154133
PMCPMC4496044
OpenAlexW1742956183

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.