Evidence map›Paper›PMID 29391477›Full record

ArticleScientific reports2018

Uptake, distribution, clearance, and toxicity of iron oxide nanoparticles with different sizes and coatings.

Qiyi Feng, Yanping Liu, Jian Huang, Ke Chen, Jinxing Huang, Kai Xiao

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 257 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
257citing papers in PubMed, 1 pooled it
44.4field-weighted citation impact, top 1% 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

257 citing papers in PubMed, 1 synthesis or guideline pooled it, 659 citations in OpenAlex.

  1. Pooled it
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  15. Article
  16. Nanoparticles in the Treatment of Renal Fibrosis.International journal of nanomedicine · 2026
    Review
  17. Review
  18. Review
  19. Observational
  20. Review

197 more citing papers are in PubMed but not listed here.

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 4 institutions in 1 country.

Qiyi FengNational Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
Yanping LiuSafety Evaluation Center, Sichuan Institute for Food and Drug Control, Chengdu, China.
Jian HuangDepartment of Thoracic Surgery, Wuxi People's Hospital of Nanjing Medical University, Wuxi, China.
Ke ChenNational Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
Jinxing HuangNational Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
Kai XiaoNational Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China. iamxiaokai@hotmail.com.
Sichuan University · CNState Key Laboratory of BiotherapyWest China Hospital of Sichuan University · CNZheJiang Institute For Food and Drug Control · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Iron oxide nanoparticles (IONPs) have been increasingly used in biomedical applications, but the comprehensive understanding of their interactions with biological systems is relatively limited. In this study, we systematically investigated the in vitro cell uptake, cytotoxicity, in vivo distribution, clearance and toxicity of commercially available and well-characterized IONPs with different sizes and coatings. Polyethylenimine (PEI)-coated IONPs exhibited significantly higher uptake than PEGylated ones in both macrophages and cancer cells, and caused severe cytotoxicity through multiple mechanisms such as ROS production and apoptosis. 10 nm PEGylated IONPs showed higher cellular uptake than 30 nm ones, and were slightly cytotoxic only at high concentrations. Interestingly, PEGylated IONPs but not PEI-coated IONPs were able to induce autophagy, which may play a protective role against the cytotoxicity of IONPs. Biodistribution studies demonstrated that all the IONPs tended to distribute in the liver and spleen, and the biodegradation and clearance of PEGylated IONPs in these tissues were relatively slow (>2 weeks). Among them, 10 nm PEGylated IONPs achieved the highest tumor uptake. No obvious toxicity was found for PEGylated IONPs in BALB/c mice, whereas PEI-coated IONPs exhibited dose-dependent lethal toxicity. Therefore, it is crucial to consider the size and coating properties of IONPs in their applications.

Indexed as

AnimalsAutophagyCell LineCell Line, TumorFemaleFerric CompoundsHumansInactivation, MetabolicMetal NanoparticlesMiceMice, Inbred BALB CMice, NudePolyethylene GlycolsPolyethyleneimineTissue DistributionFerric Compoundsferric oxidePolyethylene GlycolsPolyethyleneimine

Identifiers

PMID29391477
PMCPMC5794763
OpenAlexW2805521463

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.