Evidence map›Paper›PMID 21980237›Full record

ArticleInternational journal of nanomedicine2011

Second-generation aptamer-conjugated PSMA-targeted delivery system for prostate cancer therapy.

Xin Wu, Baoyue Ding, Jing Gao, Huanyun Wang, Wei Fan, Xiang Wang, Wei Zhang, Xiaoyu Wang, Lihua Ye, Min Zhang and 4 more

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in International journal of nanomedicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing 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

49 citing papers in PubMed, 110 citations in OpenAlex.

  1. Synthetic Polymers for Drug, Gene, and Vaccine Delivery.Polymer science & technology (Washington, D.C.) · 2025
    Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Smart nanoparticles for cancer therapy.Signal transduction and targeted therapy · 2023
    Review
  7. Review
  8. A Glimpse into Dendrimers Integration in Cancer Imaging and Theranostics.International journal of molecular sciences · 2023
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Aptamers, the Nucleic Acid Antibodies, in Cancer Therapy.International journal of molecular sciences · 2020
    Review
  16. Article
  17. Review
  18. Review
  19. Review
  20. MicroRNA replacement therapy in cancer.Journal of cellular physiology · 2019
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 1 institution in 1 country.

Xin WuDepartment of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People’s Republic of China.
Baoyue Ding
Jing Gao
Huanyun Wang
Wei Fan
Xiang Wang
Wei Zhang
Xiaoyu Wang
Lihua Ye
Min Zhang
Xueying Ding
Jiyong Liu
Quangang Zhu
Shen Gao
Zero to Three · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundmiR-15a and miR-16-1 have been identified as tumor suppressor genes in prostate cancer, but their safe and effective delivery to target cells is key to the successful use of this therapeutic strategy. RNA aptamer A10 has been used as a ligand, targeting prostate cancer cells that express prostate-specific membrane antigen (PSMA). Compared with A10, the binding of the second-generation RNA aptamer, A10-3.2, to PSMA is more efficient.

methodsA10-3.2 was investigated as a PSMA-targeting ligand in the design of a polyamidoamine (PAMAM)-based microRNA (miR-15a and miR-16-1) vector to prostate cancer cells. Using polyethyleneglycol (PEG) as a spacer, PAMAM was conjugated to aptamer (PAMAM-PEG-APT) and used as a vehicle for miRNA target delivery.

resultsLuciferase assays of pGL-3 expression against PC3 (PSMA(-)) and LNCaP (PSMA(+)) cells demonstrated that the transfection efficiency of the synthesized DNA/PAMAM-PEG-APT complex was higher than that of the DNA/PAMAM-PEG complex. In addition, cell viability assays of LNCaP (PSMA(+)) cells showed that, with a N/P ratio of 15:1, the IC(50) value of miRNA/PAMAM-PEG-APT was approximately 4.7-fold lower than that of miRNA/PAMAM-PEG.

conclusionThis PSMA-targeted system may prove useful in widening the therapeutic window and allow for selective killing of prostate cancer cells.

Indexed as

Analysis of VarianceAntigens, SurfaceAptamers, NucleotideBlotting, WesternCell Line, TumorCell ProliferationCell SurvivalDrug Delivery SystemsFlow CytometryGene ExpressionGlutamate Carboxypeptidase IIHumansMagnetic Resonance SpectroscopyMaleMicroRNAsMicroscopy, FluorescenceAntigens, SurfaceAptamers, NucleotideFOLH1 protein, humanGlutamate Carboxypeptidase IIMicroRNAsPoly(amidoamine)PolyaminesPolyethylene GlycolsaptamermiRNApolyamidoamineprostate cancerprostate-specific membrane antigentargeted delivery

Identifiers

PMID21980237
PMCPMC3184934
OpenAlexW1617274189

What OpenQuestion holds

Textmetadata
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.