Evidence map›Paper›PMID 31870376›Full record

ArticleJournal of nanobiotechnology2019

Biodegraded magnetosomes with reduced size and heating power maintain a persistent activity against intracranial U87-Luc mouse GBM tumors.

Edouard Alphandéry, Ahmed Idbaih, Clovis Adam, Jean-Yves Delattre, Charlotte Schmitt, Florence Gazeau, François Guyot, Imène Chebbi

Abstract read
In one paragraph

Article in Journal of nanobiotechnology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

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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

8 authors.

Edouard AlphandéryInstitut de minéralogie et de Physique Des matériaux et de Cosmochimie, UMR 7590 CNRS, Sorbonne Universités, UPMC, University Paris 06, Muséum National D'Histoire Naturelle, 4 Place Jussieu, 75005, Paris, France. edouardalphandery@hotmail.com.ORCID http://orcid.org/0000-0002-2952-2270
Ahmed IdbaihSorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, Service de Neurologie 2-Mazarin, F-75013, Paris, France.
Clovis AdamLaboratoire de Neuropathologie, GHU Paris-Sud-Hôpital Bicêtre, 78 rue du Général Leclerc, 94270, Le Kremlin Bicêtre, France.
Jean-Yves DelattreSorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, Service de Neurologie 2-Mazarin, F-75013, Paris, France.
Charlotte SchmittSorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, Service de Neurologie 2-Mazarin, F-75013, Paris, France.
Florence GazeauLaboratoire de matière et systèmes Complexes, MSC, Université Paris Diderot, Bâtiment Condorcet, Case 7056, 75205, Paris Cedex 13, France.
François GuyotInstitut de minéralogie et de Physique Des matériaux et de Cosmochimie, UMR 7590 CNRS, Sorbonne Universités, UPMC, University Paris 06, Muséum National D'Histoire Naturelle, 4 Place Jussieu, 75005, Paris, France.
Imène ChebbiNanobacterie SARL, 36 boulevard Flandrin, 75016, Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAn important but rarely addressed question in nano-therapy is to know whether bio-degraded nanoparticles with reduced sizes and weakened heating power are able to maintain sufficient anti-tumor activity to fully eradicate a tumor, hence preventing tumor re-growth. To answer it, we studied magnetosomes, which are nanoparticles synthesized by magnetotactic bacteria with sufficiently large sizes (~ 30 nm on average) to enable a follow-up of nanoparticle sizes/heating power variations under two different altering conditions that do not prevent anti-tumor activity, i.e. in vitro cellular internalization and in vivo intra-tumor stay for more than 30 days.

resultsWhen magnetosomes are internalized in U87-Luc cells by being incubated with these cells during 24 h in vitro, the dominant magnetosome sizes within the magnetosome size distribution (DMS) and specific absorption rate (SAR) strongly decrease from DMS ~ 40 nm and SAR ~ 1234 W/g

conclusionHere, we report sustained magnetosome anti-tumor activity under conditions of significant magnetosome size reduction and complete loss of magnetosome heating power.

Indexed as

AnimalsAntineoplastic AgentsBrain NeoplasmsCell Line, TumorCell SurvivalFemaleHeatingHumansHyperthermia, InducedMagnetic FieldsMagnetite NanoparticlesMagnetosomesMagnetospirillumMiceMice, NudeParticle SizeAntineoplastic AgentsMagnetite NanoparticlesAlternating magnetic fieldAntitumor efficacyChains of magnetosomesGlioblastomaHyperthermiaMagnetic hyperthermiaMagnetotactic bacteriaNanomedicineNanooncologyNanotherapyOncologyThermotherapyU87-Luc

Identifiers

PMID31870376
PMCPMC6929367

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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.