Evidence map›Paper›PMID 25988257›Full record

ArticleScientific reports2015

Heparin affinity purification of extracellular vesicles.

Leonora Balaj, Nadia A Atai, Weilin Chen, Dakai Mu, Bakhos A Tannous, Xandra O Breakefield, Johan Skog, Casey A Maguire

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 108 papers.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed
9.3field-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

108 citing papers in PubMed, 187 citations in OpenAlex.

  1. Article
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  9. Article
  10. Article
  11. Review
  12. Review
  13. Extracellular vesicles as tools and targets in therapy for diseases.Signal transduction and targeted therapy · 2024
    Review
  14. Article
  15. Review
  16. Plasma/Serum Proteomics based on Mass Spectrometry.Protein and peptide letters · 2024
    Review
  17. Article
  18. Review
  19. Review
  20. Extracellular Vesicles as Source of Biomarkers in Glomerulonephritis.International journal of molecular sciences · 2023
    Review

48 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

8 authors at 3 institutions in 1 country.

Leonora BalajDepartment of Neurology, Massachusetts General Hospital and Program in Neuroscience, Harvard Medical School, Boston, MA.
Nadia A Atai1] Department of Neurology, Massachusetts General Hospital and Program in Neuroscience, Harvard Medical School, Boston, MA. [2] Department of Cell Biology and Histology, Academic Medical Center (AMC), University of Amsterdam, The Netherlands.
Weilin ChenDepartment of Neurology, Massachusetts General Hospital and Program in Neuroscience, Harvard Medical School, Boston, MA.
Dakai MuDepartment of Neurology, Massachusetts General Hospital and Program in Neuroscience, Harvard Medical School, Boston, MA.
Bakhos A TannousDepartment of Neurology, Massachusetts General Hospital and Program in Neuroscience, Harvard Medical School, Boston, MA.
Xandra O Breakefield1] Department of Neurology, Massachusetts General Hospital and Program in Neuroscience, Harvard Medical School, Boston, MA. [2] Departments of Radiology, Massachusetts General Hospital and Program in Neuroscience, Harvard Medical School, Boston, MA.
Johan SkogExosome Diagnostics Inc. Cambridge, MA.
Casey A MaguireDepartment of Neurology, Massachusetts General Hospital and Program in Neuroscience, Harvard Medical School, Boston, MA.
Massachusetts General Hospital · USHarvard University · USExosome Diagnostics (United States) · US

Funding

The role of microvesicles in giloma virotherapyP01CA069246 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI CHAREST, ALAIN · 1996 to 2021
$30.9M
Interdepartmental Neuroscience CenterP30NS045776 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI BREAKEFIELD, XANDRA OWENS, TANNOUS, BAKHOS A · 2003 to 2018
$11.1M
Tumor exosomes as agents of genetic changeR01CA141150 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI BREAKEFIELD, XANDRA OWENS · 2009 to 2011
$873k
A hybrid microvesicle/virus vector for targeted gene transfer to the brainR21NS081374 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI MAGUIRE, CASEY A · 2012 to 2013
$449k
Serum exosome diagnosis for gliomaR21CA141226 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI BREAKEFIELD, XANDRA OWENS · 2009 to 2010
$424k
Serum exosome biomarkers for evaluation of glioma drug responseR21CA156009 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI BREAKEFIELD, XANDRA OWENS · 2011 to 2012
$423k
NCI NIH HHS CA069246NCI NIH HHS CA141150NCI NIH HHS CA141226NCI NIH HHS CA156009NCI NIH HHS P01 CA069246NCI NIH HHS R01 CA141150NCI NIH HHS R21 CA141226NCI NIH HHS R21 CA156009NINDS NIH HHS 1 R21 NS081374-01NINDS NIH HHS P30 NS045776NINDS NIH HHS P30NS045776NINDS NIH HHS R21 NS081374
6 · The paper itself

Abstract

Extracellular vesicles (EVs) are lipid membrane vesicles released by cells. They carry active biomolecules including DNA, RNA, and protein which can be transferred to recipient cells. Isolation and purification of EVs from culture cell media and biofluids is still a major challenge. The most widely used isolation method is ultracentrifugation (UC) which requires expensive equipment and only partially purifies EVs. Previously we have shown that heparin blocks EV uptake in cells, supporting a direct EV-heparin interaction. Here we show that EVs can be purified from cell culture media and human plasma using ultrafiltration (UF) followed by heparin-affinity beads. UF/heparin-purified EVs from cell culture displayed the EV marker Alix, contained a diverse RNA profile, had lower levels of protein contamination, and were functional at binding to and uptake into cells. RNA yield was similar for EVs isolated by UC. We were able to detect mRNAs in plasma samples with comparable levels to UC samples. In conclusion, we have discovered a simple, scalable, and effective method to purify EVs taking advantage of their heparin affinity.

Indexed as

Cell Line, TumorExtracellular VesiclesHEK293 CellsHeparinHumansHuman Umbilical Vein Endothelial CellsMicrospheresProtein BindingRNA, MessengerSepharoseHeparinRNA, MessengerSepharose

Identifiers

PMID25988257
PMCPMC4437317
OpenAlexW1888751811

What OpenQuestion holds

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Registered trials

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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.