Evidence map›Paper›PMID 31907052›Full record

ArticleJournal of nanobiotechnology2020

Biological response and cytotoxicity induced by lipid nanocapsules.

Marzena Szwed, Maria Lyngaas Torgersen, Remya Valsala Kumari, Sunil Kumar Yadava, Sascha Pust, Tore Geir Iversen, Tore Skotland, Jyotsnendu Giri, Kirsten Sandvig

Open access · goldAbstract read
In one paragraph

Article in Journal of nanobiotechnology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

23 citing papers in PubMed, 47 citations in OpenAlex.

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  13. Hybrid Lipid Nanocapsules: A Robust Platform for mRNA Delivery.ACS applied materials & interfaces · 2024
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Enhancing theDrug delivery · 2021
    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

9 authors at 4 institutions in 2 countries.

Marzena SzwedDepartment of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway.ORCID http://orcid.org/0000-0002-2102-3741
Maria Lyngaas TorgersenDepartment of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway.ORCID http://orcid.org/0000-0003-2616-7194
Remya Valsala KumariDepartment of Biomedical Engineering, Indian Institute of Technology, Hyderabad, India.ORCID http://orcid.org/0000-0001-8064-4268
Sunil Kumar YadavaDepartment of Biomedical Engineering, Indian Institute of Technology, Hyderabad, India.ORCID http://orcid.org/0000-0002-5749-1758
Sascha PustDepartment of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway.ORCID http://orcid.org/0000-0002-0178-2206
Tore Geir IversenDepartment of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway.ORCID http://orcid.org/0000-0003-1148-6117
Tore SkotlandDepartment of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway.ORCID http://orcid.org/0000-0002-6524-612X
Jyotsnendu GiriDepartment of Biomedical Engineering, Indian Institute of Technology, Hyderabad, India. j.giri@iith.ac.in.ORCID http://orcid.org/0000-0002-2313-4912
Kirsten SandvigDepartment of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway. ksandvig@radium.uio.no.ORCID http://orcid.org/0000-0002-4174-9072
Oslo University Hospital · NOIndian Institute of Technology Hyderabad · INIndian Institute of Chemical Technology · INUniversity of Oslo · NO

Funding

India Nanomission DST/IMRCD/INNO-INDIGO/NANOBREASTCO/2015The Research Council of Norway 228200
6 · The paper itself

Abstract

backgroundLipid nanocapsules (LNCs) are promising vehicles for drug delivery. However, since not much was known about cellular toxicity of these nanoparticles in themselves, we have here investigated the mechanisms involved in LNC-induced intoxication of the three breast cancer cell lines MCF-7, MDA-MD-231 and MDA-MB-468. The LNCs used were made of Labrafac™ Lipophile WL1349, Lipoid

resultsHigh resolution SIM microscopy showed that the DiD-labeled LNCs ended up in lysosomes close to the membrane. Empty LNCs, i.e. without encapsulated drug, induced not only increased lysosomal pH, but also acidification of the cytosol and a rapid inhibition of protein synthesis. The cytotoxicity of the LNCs were measured for up to 72 h of incubation using the MTT assay and ATP measurements in all three cell lines, and revealed that MDA-MB-468 was the most sensitive cell line and MCF-7 the least sensitive cell line to these LNCs. The LNCs induced generation of reactive free oxygen species and lipid peroxidation. Experiments with knock-down of kinases in the near-haploid cell line HAP1 indicated that the kinase HRI is essential for the observed phosphorylation of eIF2α. Nrf2 and ATF4 seem to play a protective role against the LNCs in MDA-MB-231 cells, as knock-down of these factors sensitizes the cells to the LNCs. This is in contrast to MCF-7 cells where the knock-down of these factors had a minor effect on the toxicity of the LNCs. Inhibitors of ferroptosis provided a large protection against LNC toxicity in MDA-MB-231 cells, but not in MCF-7 cells.

conclusionsHigh doses of LNCs showed a different degree of toxicity on the three cell lines studied, i.e. MCF-7, MDA-MD-231 and MDA-MB-468 and affected signaling factors and the cell fate differently in these cell lines.

Indexed as

Activating Transcription Factor 4Cell DeathCell Line, TumorEndocytosisFerroptosisHomeostasisHumansHydrogen-Ion ConcentrationLipidsLysosomesNanocapsulesNF-E2-Related Factor 2Oxidation-ReductionProtein BiosynthesisReactive Oxygen SpeciesStress, PhysiologicalActivating Transcription Factor 4ATF4 protein, humanLipidsNanocapsulesNFE2L2 protein, humanNF-E2-Related Factor 2Reactive Oxygen SpeciesBreast cancer cellsFerroptosisLipid nanocapsulesStress responses

Identifiers

PMID31907052
PMCPMC6943936
OpenAlexW2997677579

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.