Evidence map›Paper›PMID 33519199›Full record

ArticleInternational journal of nanomedicine2021

Platinum Nanoparticles Enhance Exosome Release in Human Lung Epithelial Adenocarcinoma Cancer Cells (A549): Oxidative Stress and the Ceramide Pathway are Key Players.

Sangiliyandi Gurunathan, Min-Hee Kang, Muniyandi Jeyaraj, Jin-Hoi Kim

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

34 citing papers in PubMed, 57 citations in OpenAlex.

  1. Biology and Therapeutic Potential of Exosomes, Targeted Drug Delivery.International journal of molecular sciences · 2026
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  13. [Effects of Electromagnetic Pulses on Exosomes Secretion by A549 Cells].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2024
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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

4 authors at 1 institution in 1 country.

Sangiliyandi GurunathanDepartment of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul 05029, Korea.
Min-Hee KangDepartment of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul 05029, Korea.ORCID 0000-0003-4402-7064
Muniyandi JeyarajDepartment of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul 05029, Korea.
Jin-Hoi KimDepartment of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul 05029, Korea.ORCID 0000-0003-1232-5307
Konkuk University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeveral studies have demonstrated various molecular mechanisms involved in the biogenesis and release of exosomes. However, how external stimuli, such as platinum nanoparticles (PtNPs), induces the biogenesis and release of exosomes remains unclear. To address this, PtNPs were synthesized using lutein to examine their effect on the biogenesis and release of exosomes in human lung epithelial adenocarcinoma cancer cells (A549).

methodsThe size and concentration of isolated exosomes were characterized by dynamic light scattering (DLS) and nanoparticle tracking analysis system (NTA). Morphology and structure of exosomes were examined using scanning electron microscopy and transmission electron microscopy (TEM), respectively. Quantification of exosomes were analyzed by EXOCET

resultsA549 cells cultured with PtNPs enhance exosome secretion by altering various physiological processes. Interestingly, A549 cells treated with PtNPs increases total protein concentration, biogenesis and release of exosomes associated with PtNPs-induced oxidative stress. GW4869 inhibits PtNPs induced biogenesis and release of exosomes and also acetylcholinesterase (AChE), neutral sphingomyelinase activity (n-SMase), and exosome counts. A549 cells pre-treated with N-acetylcysteine (NAC) significantly inhibited PtNPs induced exosome biogenesis and release. These findings confirmed that PtNPs-induced exosome release was due to the induction of oxidative stress and the ceramide pathway. These factors enhanced exosome biogenesis and release and may be useful in understanding the mechanism of exosome formation, release, and function.

conclusionPtNPs provide a promising agent to increase exosome production in A549 cells. These findings offer novel strategies for enhancing exosome release, which can be applied in the treatment and prevention of cancer. Importantly, this is the first study, to our knowledge, showing that PtNPs stimulate exosome biogenesis by inducing oxidative stress and the ceramide pathway.

Indexed as

Oxidative StressA549 CellsAcetylcholinesteraseAcetylcysteineAdenocarcinoma of LungAniline CompoundsBenzylidene CompoundsCell ProliferationCell SurvivalCeramidesEnzyme ActivationExosomesGene Expression Regulation, NeoplasticHumansLung NeoplasmsLuteinAcetylcholinesteraseAcetylcysteineAniline CompoundsBenzylidene CompoundsCeramidesGW 4869LuteinNeoplasm ProteinsPlatinumRNA, MessengerSphingomyelin Phosphodiesteraseacetylcholinesterase activitycytotoxicityexosomeneutral sphingomyelinase activityoxidative stressplatinum nanoparticle

Identifiers

PMID33519199
PMCPMC7837572
OpenAlexW3123756075

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.