Evidence map›Paper›PMID 28626645›Full record

ArticleBiotechnology reports (Amsterdam, Netherlands)2014

An intrabody specific for the nucleophosmin carboxy-terminal mutant and fused to a nuclear localization sequence binds its antigen but fails to relocate it in the nucleus.

Chiara Martinelli, Emanuela Colombo, Daniele Piccini, Cristina Sironi, Pier Giuseppe Pelicci, Ario de Marco

Open access · goldAbstract read
In one paragraph

Article in Biotechnology reports (Amsterdam, Netherlands), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.2field-weighted citation impact, top 45% 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

5 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Applying Antibodies Inside Cells: Principles and Recent Advances in Neurobiology, Virology and Oncology.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2020
    Review
  5. Article
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

6 authors at 2 institutions in 2 countries.

Chiara MartinelliIFOM-IEO Campus, Via Adamello 16, 20139 Milan, Italy.
Emanuela ColomboDepartment of Experimental Oncology, IEO, Via Adamello 16, 20139 Milan, Italy.
Daniele PicciniIFOM-IEO Campus, Via Adamello 16, 20139 Milan, Italy.
Cristina SironiDepartment of Experimental Oncology, IEO, Via Adamello 16, 20139 Milan, Italy.
Pier Giuseppe PelicciDepartment of Experimental Oncology, IEO, Via Adamello 16, 20139 Milan, Italy.
Ario de MarcoDepartment of Biomedical Sciences and Engineering, University of Nova Gorica, Glavni Trg 9, SI-5261 Vipava, Slovenia.
University of Milan · ITUniversity of Nova Gorica · SI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The cytoplasmic accumulation of NPM1 (NPMc+) is found in acute myeloid leukemia (AML) with NPM1 mutation. NPM1 must shuttle between nucleus and cytoplasm to assure physiological protein synthesis and, therefore, the elimination of NPMc+ is not a suitable therapeutic option. We isolated, characterized, and produced a functional scFv intrabody fused to nuclear localization signal(s) (NLS) that does not recognize NPM1 but binds to the mutant-specific C-terminal NES (nuclear export signal) of NPMc+, responsible for its cytoplasmic accumulation. The scFv-NLS fusion accumulated in the nuclei of wild type cells and strongly bound to its antigen in the cytoplasm of NPMc+ expressing cells. However, it failed to relocate the majority of NPMc+ in the nucleus, even when fused to four NLS. Our results show the technical feasibility of producing recombinant intrabodies with defined sub-cellular targeting and nuclear accumulation but the lack of information concerning the features that confer variable strength to the signal peptides impairs the development of biomolecules able to counteract pathological sub-cellular distribution of shuttling proteins.

Indexed as

AML, acute myeloid leukemiaCRM1, Chromosomal Region Maintenance 1GST, glutathione S-transferaseIntrabodyLeukemiaMBP, maltose binding proteinNES, nuclear export signalNLS, nuclear localization signalNPM1, nucleophosminNPMc+, cytoplasmic nucleophosminProtein shuttlingRecombinant fusion proteinscFv, single-chain variable fragmentSingle-chain antibody

Identifiers

PMID28626645
PMCPMC5466097
OpenAlexW2088559280

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.