Evidence map›Paper›PMID 33021630›Full record

ArticleNucleic acids research2020

Evolution of a highly functional circular DNA aptamer in serum.

Yu Mao, Jimmy Gu, Dingran Chang, Lei Wang, Lili Yao, Qihui Ma, Zhaofeng Luo, Hao Qu, Yingfu Li, Lei Zheng

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

18 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Advances in aptamer technology for target-based drug discovery.Journal of pharmaceutical analysis · 2026
    Review
  5. Review
  6. Review
  7. Spiegelmer Aptamers: Innovative Approach in Breast Cancer.Breast cancer : basic and clinical research · 2026
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Aptamer-armed nanostructures improve the chemotherapy outcome of triple-negative breast cancer.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
    Article
  16. Review
  17. Aptamer Blocking Strategy Inhibits SARS-CoV-2 Virus Infection.Angewandte Chemie (International ed. in English) · 2021
    Article
  18. Review
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

10 authors at 3 institutions in 2 countries.

Yu MaoSchool of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
Jimmy GuDepartment of Biochemistry and Biomedical Sciences, McMaster University, Hamilton L8S4K1, Canada.
Dingran ChangDepartment of Biochemistry and Biomedical Sciences, McMaster University, Hamilton L8S4K1, Canada.
Lei WangSchool of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
Lili YaoSchool of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
Qihui MaSchool of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
Zhaofeng LuoSchool of Life Sciences, University of Science and Technology of China, Hefei 230026, China.
Hao QuSchool of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
Yingfu LiDepartment of Biochemistry and Biomedical Sciences, McMaster University, Hamilton L8S4K1, Canada.
Lei ZhengSchool of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
Hefei University of Technology · CNMcMaster University · CAUniversity of Science and Technology of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Circular DNA aptamers are powerful candidates for therapeutic applications given their dramatically enhanced biostability. Herein we report the first effort to evolve circular DNA aptamers that bind a human protein directly in serum, a complex biofluid. Targeting human thrombin, this strategy has led to the discovery of a circular aptamer, named CTBA4T-B1, that exhibits very high binding affinity (with a dissociation constant of 19 pM), excellent anticoagulation activity (with the half maximal inhibitory concentration of 90 pM) and high stability (with a half-life of 8 h) in human serum, highlighting the advantage of performing aptamer selection directly in the environment where the application is intended. CTBA4T-B1 is predicted to adopt a unique structural fold with a central two-tiered guanine quadruplex capped by two long stem-loops. This structural arrangement differs from all known thrombin binding linear DNA aptamers, demonstrating the added advantage of evolving aptamers from circular DNA libraries. The method described here permits the derivation of circular DNA aptamers directly in biological fluids and could potentially be adapted to generate other types of aptamers for therapeutic applications.

Indexed as

Aptamers, NucleotideDNA, CircularG-QuadruplexesHumansProtein BindingThrombinAptamers, NucleotideDNA, CircularThrombin

Identifiers

PMID33021630
PMCPMC7641760
OpenAlexW3090930135

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.