Evidence map›Paper›PMID 34086733›Full record

ArticlePloS one2021

Comparison of polypeptides that bind the transferrin receptor for targeting gold nanocarriers.

Conor McQuaid, Andrea Halsey, Maëva Dubois, Ignacio Romero, David Male

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.3field-weighted citation impact, top 54% 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

10 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. New Trends in Brain Shuttle Peptides.Molecular pharmaceutics · 2025
    Review
  6. Review
  7. Emerging Perspectives on Prime Editor Delivery to the Brain.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  8. Peptides for trans-blood-brain barrier delivery.Journal of labelled compounds & radiopharmaceuticals · 2023
    Review
  9. Article
  10. Nanocarriers for Delivery of Oligonucleotides to the CNS.International journal of molecular sciences · 2022
    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

5 authors at 1 institution in 1 country.

Conor McQuaidDepartment of Life Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom.ORCID 0000-0002-5163-8915
Andrea HalseyDepartment of Life Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom.
Maëva DuboisDepartment of Life Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom.
Ignacio RomeroDepartment of Life Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom.
David MaleDepartment of Life Health and Chemical Sciences, The Open University, Milton Keynes, United Kingdom.ORCID 0000-0002-1242-3137
The Open University · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ability to target therapeutic agents to specific tissues is an important element in the development of new disease treatments. The transferrin receptor (TfR) is one potential target for drug delivery, as it expressed on many dividing cells and on brain endothelium, the key cellular component of the blood-brain barrier. The aim of this study was to compare a set of new and previously-described polypeptides for their ability to bind to brain endothelium, and investigate their potential for targeting therapeutic agents to the CNS. Six polypeptides were ranked for their rate of endocytosis by the human brain endothelial cell line hCMEC/D3 and the murine line bEnd.3. One linear polypeptide and two cyclic polypeptides showed high rates of uptake. These peptides were investigated to determine whether serum components, including transferrin itself affected uptake by the endothelium. One of the cyclic peptides was strongly inhibited by transferrin and the other cyclic peptide weakly inhibited. As proof of principle the linear peptide was attached to 2nm glucose coated gold-nanoparticles, and the rate of uptake of the nanoparticles measured in a hydrogel model of the blood-brain barrier. Attachment of the TfR-targeting polypeptide significantly increased the rates of endocytosis by brain endothelium and increased movement of nanoparticles across the cells.

Indexed as

AnimalsBiological TransportBlood-Brain BarrierBrainCell LineDrug CarriersDrug Delivery SystemsEndocytosisEndothelial CellsEndothelium, VascularGoldHumansMetal NanoparticlesMicePeptidesReceptors, TransferrinDrug CarriersGoldPeptidesReceptors, TransferrinTransferrin

Identifiers

PMID34086733
PMCPMC8177412
OpenAlexW3165340195

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.