Evidence map›Paper›PMID 33330358›Full record

ArticleFrontiers in chemistry2020

Structural Insights on Tiny Peptide Nucleic Acid (PNA) Analogues of miRNA-34a: An

Maria Moccia, Flavia Anna Mercurio, Emma Langella, Valerio Piacenti, Marilisa Leone, Mauro F A Adamo, Michele Saviano

Open access · goldAbstract read
In one paragraph

Article in Frontiers in chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.4field-weighted citation impact, top 39% 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

8 citing papers in PubMed, 10 citations in OpenAlex.

  1. Current issues in molecular biology · 2026
    Article
  2. Review
  3. Review
  4. Recent Cutting-Edge Technologies for the Delivery of Peptide Nucleic Acid.Chemistry (Weinheim an der Bergstrasse, Germany) · 2025
    Review
  5. Review
  6. Epigenetic Dysregulation inInternational journal of molecular sciences · 2023
    Review
  7. Review
  8. 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

7 authors at 3 institutions in 2 countries.

Maria MocciaInstitute of Crystallography, National Research Council, Department of Chemical Sciences and Materials Technologies, Bari, Italy.
Flavia Anna MercurioInstitute of Biostructures and Bioimaging, National Research Council, Naples, Italy.
Emma LangellaInstitute of Biostructures and Bioimaging, National Research Council, Naples, Italy.
Valerio PiacentiRoyal College of Surgeons in Ireland, Department of Pharmaceutical and Medicinal Chemistry, Dublin, Ireland.
Marilisa LeoneInstitute of Biostructures and Bioimaging, National Research Council, Naples, Italy.
Mauro F A AdamoRoyal College of Surgeons in Ireland, Department of Pharmaceutical and Medicinal Chemistry, Dublin, Ireland.
Michele SavianoInstitute of Crystallography, National Research Council, Department of Chemical Sciences and Materials Technologies, Bari, Italy.
National Research Council · ITRoyal College of Surgeons in Ireland · IEInstitute of Biostructure and Bioimaging · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present work, structural features of the interaction between peptide nucleic acid (PNA)-based analogs of the tumor-suppressor microRNA-34a with both its binding sites on MYCN mRNA were investigated. In particular, the region from base 1 to 8 ("seed" region) of miR-34a was reproduced in the form of an 8-mer PNA fragment (tiny PNA), and binding to target 3'UTR MYCN mRNA, was studied by a seldom reported and detailed NMR characterization, providing evidence for the formation of anti-parallel duplexes with a well-organized structural core. The formation of PNA-3'UTR duplexes was also confirmed by Circular Dichroism, and their melting curves were measured by UV spectroscopy. Nevertheless, this study offered a valuable comparison between molecular dynamics predictions and experimental evidence, which showed great correlation. Preliminary uptake assays were carried out in Neuroblastoma Kelly cells, using short peptide conjugates as carriers and FITC fluorescent tag for subcellular localization. Moderate internalization was observed without the use of transfecting agents. The reported results corroborate the interest toward the design and development of chimeric PNA/RNA sequences as effective RNA-targeting agents.

Indexed as

miRNA-34amolecular dynamicsNMRPNAtumor suppressor

Identifiers

PMID33330358
PMCPMC7719796
OpenAlexW3107540922

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.