Evidence map›Paper›PMID 22359573›Full record

ArticlePloS one2012

Probing high affinity sequences of DNA aptamer against VEGF165.

Harleen Kaur, Lin-Yue Lanry Yung

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

50 citing papers in PubMed, 139 citations in OpenAlex.

  1. Aptamer-based DNA nanoswitches for multiplexed protein detection.Chemical communications (Cambridge, England) · 2026
    Article
  2. Aptamer-based DNA nanoswitches for multiplexed protein detection.bioRxiv : the preprint server for biology · 2026
    Article
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  18. Logic Gates Based on DNA Aptamers.Pharmaceuticals (Basel, Switzerland) · 2020
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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

2 authors at 1 institution in 1 country.

Harleen KaurDepartment of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore.
Lin-Yue Lanry Yung
National University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vascular endothelial growth factor (VEGF(165)) is a potent angiogenic mitogen commonly overexpressed in cancerous cells. It contains two main binding domains, the receptor-binding domain (RBD) and the heparin-binding domain (HBD). This study attempted to identify the specific sequences of the VEa5 DNA aptamer that exhibit high binding affinity towards the VEGF(165) protein by truncating the original VEa5 aptamer into different segments. Using surface plasmon resonance (SPR) spectroscopy for binding affinity analysis, one of the truncated aptamers showed a >200-fold increase in the binding affinity for HBD. This truncated aptamer also exhibited high specificity to HBD with negligible binding affinity for VEGF(121), an isoform of VEGF lacking HBD. Exposing colorectal cancer cells to the truncated aptamer sequence further confirmed the binding affinity and specificity of the aptamer to the target VEGF(165) protein. Hence, our approach of aptamer truncation can potentially be useful in identifying high affinity aptamer sequences for the biological molecules and targeting them as antagonist for cancer cell detection.

Indexed as

Aptamers, NucleotideBase SequenceBinding SitesColorectal NeoplasmsHumansProtein BindingSensitivity and SpecificitySurface Plasmon ResonanceTumor Cells, CulturedVascular Endothelial Growth Factor AAptamers, NucleotideVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID22359573
PMCPMC3281051
OpenAlexW2021399348

What OpenQuestion holds

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LicenceCC BY
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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.