Evidence map›Paper›PMID 34496914›Full record

ArticleParticle and fibre toxicology2021

Prospects on the nano-plastic particles internalization and induction of cellular response in human keratinocytes.

Ponnusamy Manogaran Gopinath, Krishna Sundar Twayana, Palaniyandi Ravanan, John Thomas, Amitava Mukherjee, David F Jenkins, Natarajan Chandrasekaran

Open access · goldAbstract read
In one paragraph

Article in Particle and fibre toxicology, 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
3.1field-weighted citation impact, top 8% 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, 96 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. [Microplastic and skin-an update].Dermatologie (Heidelberg, Germany) · 2026
    Review
  10. Review
  11. Review
  12. Plastics in dermatology: A review and solutions.Journal of the European Academy of Dermatology and Venereology : JEADV · 2025
    Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Interaction of Polystyrene Nanoplastic with Lipid Membranes.The journal of physical chemistry. B · 2025
    Article
  18. Article
  19. The Impact of Microplastics in Food and Drugs on Human Health: A Review of the MENA Region.International journal of environmental research and public health · 2025
    Review
  20. Artificial plasticenta: how polystyrene nanoplastics affectFrontiers in cell and developmental biology · 2025
    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

7 authors at 3 institutions in 2 countries.

Ponnusamy Manogaran GopinathCentre for Nanobiotechnology, Vellore Institute of Technology (VIT), Tamil Nadu, Vellore, 632 014, India.
Krishna Sundar TwayanaApoptosis and Cell Survival Research Lab, Department of Biosciences, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, 632 014, India.
Palaniyandi RavananApoptosis and Cell Survival Research Lab, Department of Biosciences, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, 632 014, India. ravanan@cutn.ac.in.
John ThomasCentre for Nanobiotechnology, Vellore Institute of Technology (VIT), Tamil Nadu, Vellore, 632 014, India.
Amitava MukherjeeCentre for Nanobiotechnology, Vellore Institute of Technology (VIT), Tamil Nadu, Vellore, 632 014, India.
David F JenkinsFaculty of Science and Environment, Plymouth University, Plymouth, PL4 8AA, UK.
Natarajan ChandrasekaranCentre for Nanobiotechnology, Vellore Institute of Technology (VIT), Tamil Nadu, Vellore, 632 014, India. nchandrasekaran@vit.ac.in.
Vellore Institute of Technology University · INCentral University of Tamil Nadu · INUniversity of Plymouth · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundToday, cosmetic products are very popular with both men and women to improve their appearance and increase their social acceptability.

resultsIn this study, nano-sized (30-300 nm) plastic particles were isolated from the commercial face-scrubs and treated on the human keratinocytes. The observed adherence of polyethylene nano-plastics (PENPs), polystyrene NPs (PSNPs), and face-scrubs isolated nano-plastics (NPs) on the keratin layer reveals a significant attachment of NPs from the cosmetics that are applied on the skin for a short duration. This attachment property could facilitate further adherence of protein molecules on NPs and the protein-corona formation. The protein-corona mimics protein aggregates, thereby triggers macropinocytosis, followed by the macropinolysosomal process in the cell. These internalized NPs induced the concentration-dependent cytotoxic, cytostatic and cytoprotective activity in keratinocytes. Both single dose and chronic long-term exposure of lethal and sub-lethal concentrations of NPs resulted in oxidative stress-mediated down-regulation of cell growth and proliferation inhibition. Autophagic structures and premature aging were also observed using an electron microscopy and a senescence marker, respectively in the NPs internalized HaCaT cells incubated in a fresh, NPs-free medium.

conclusionThough 2D culture models have many limitations, it produces significant conceptual advancements. This work provides an insight into the NPs concentration-dependent regulatory, cytoprotective, and cytotoxic effects in HaCaT cells. However, 3D model studies are required to identify the detailed mechanisms of NPs toxicity and cytoprotective events in cells at the molecular level.

Indexed as

Metal NanoparticlesNanoparticlesProtein CoronaHumansKeratinocytesMicroplasticsPlasticsMicroplasticsPlasticsProtein CoronaAutophagyHuman keratinKeratinocytesMacropinocytosisNano-plasticsOxidative stressProtein-coronaSenescence

Identifiers

PMID34496914
PMCPMC8424902
OpenAlexW3114155501

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.