PXD062730

PXD062730 is an original dataset announced via ProteomeXchange.

Title	About the effects of true to life polyethylene terephthalate nanoparticles on macrophages
Description	Plastics are emerging pollutants of great concern. Macroplastics degrade into microplastics and nanoplastics, which can accumulate in living organisms with still poorly known consequences. Nanoplastics being particulate pollutants, they are handled in animal organisms by scavenger cells such as macrophages, which are important players in the immune system. Polyethylene terephthalate is one of these plastics of concern, as it is widely used in food packaging where it releases nanoparticles. We have thus undertaken a study on the effects of true-to-life polyethylene terephthalate nanoparticles prepared from water bottles on macrophages. To this purpose, we used a combination of proteomics and targeted validation experiments. Proteomics showed important adaptive changes in the proteome in response to exposure to polyethylene terephthalate nanoparticles. These changes affected for example mitochondrial, cytoskeletal and lysosomal proteins, but also proteins implicated in immune functions. Validation experiments showed that many of these changes were homeostatic, with no induced oxidative stress and no gross perturbation of the mitochondrial function. However, polyethylene terephthalate nanoparticles induced endoplasmic reticulum stress and disturbed the immune functions of macrophages. We indeed observed a slight pro-inflammatory response (1.5-fold increase in TNF secretion). We also observed a decrease in the response to bacterial stimulation (1.6 decrease in IL-6 secretion). We also observed a 20 percent decrease in the expression of important proteins involved in immune responses such as TLR2, TLR7 or collectin 12, and a two-fold decrease in the production of lysozyme. This suggests that macrophages having ingested polyethylene terephthalate nanoparticles are less efficient in their immune functions.
HostingRepository	PRIDE
AnnounceDate	2025-04-09
AnnouncementXML	Submission_2025-04-09_01:11:52.905.xml
DigitalObjectIdentifier	https://dx.doi.org/10.6019/PXD062730
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Supported dataset by repository
PrimarySubmitter	Hélène Diemer
SpeciesList	scientific name: Mus musculus (Mouse); NCBI TaxID: 10090;
ModificationList	iodoacetamide derivatized residue
Instrument	Q Exactive

Revision	Datetime	Status	ChangeLog Entry
0	2025-04-08 06:23:52	ID requested
⏵ 1	2025-04-09 01:11:53	announced

10.1039/D4EN01063A;

10.6019/PXD062730;

submitter keyword: gel plugs, nanoplastic particle,macrophage, Mouse, nanoLC-MS/MS

Sarah Cianferani
contact affiliation	Laboratoire de Spectrométrie de Masse BioOrganique (LSMBO), Université de Strasbourg,CNRS, IPHC UMR 7178, 67087 Strasbourg, France
contact email	sarah.cianferani@unistra.fr
lab head
Hélène Diemer
contact affiliation	LSMBO
contact email	hdiemer@unistra.fr
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD062730
     1. Label: PRIDE project
     2. Name: About the effects of true to life polyethylene terephthalate nanoparticles on macrophages