PXD036456 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Comprehensive proteomic analysis reveals omega-3 fatty acids to counteract endotoxin-stimulated metabolic dysregulation in porcine enterocytes |
Description | Omega-3 polyunsaturated fatty acids (n-3 PUFA), such as the eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are reported to beneficially affect intestinal immunity. The intestinal epithelial layer (IEL), made up of absorptive cells as the enterocytes, is the primary site of fatty acid absorption. So far, the biological pathways modulated by n-3 PUFA in IEL during infection remain elusive. In the present study, shotgun proteomics analysis integrated with RNA sequencing (RNA-seq) technology was employed to unveil the proteomic changes induced by n-3 PUFA in enterocytes, in the presence and absence of lipopolysaccharide (LPS) stress conditions. A total of 33, 85, and 88 differential proteins were identified in the IPEC-J2 cells exposed to (i) n-3 PUFA (DHA:EPA, 1:2, 10 µM, 24 h), (ii) LPS (10 µg/mL, 24 h), or (iii) n-3 PUFA pre-treatment followed by LPS stimulation, respectively. Functional annotation and pathway analysis of the differential proteins revealed the modulation of central carbon metabolism, including glycolysis/gluconeogenesis, pentose phosphate pathway, and oxidative phosphorylation. Specifically, LPS caused metabolic dysregulation in the IPEC-J2 cells, abated upon prior treatment with n-3 PUFA. Indeed, n-3 PUFA supplementation facilitated enterocyte development and lipid homeostasis. This work provided a comprehensive picture of the biological pathways modulated by n-3 PUFA in enterocytes, both in the absence and presence of a state of endotoxin-induced metabolic dysregulation. Our findings provide important insights into the role of n-3 PUFA in the intestinal barrier, which could support better planning of nutritional strategies in managing intestinal health and immunity. |
HostingRepository | PRIDE |
AnnounceDate | 2024-10-22 |
AnnouncementXML | Submission_2024-10-22_06:17:14.185.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Salvatore Pisanu |
SpeciesList | scientific name: Sus scrofa domesticus (domestic pig); NCBI TaxID: 9825; |
ModificationList | acetylated residue; monohydroxylated residue; iodoacetamide derivatized residue |
Instrument | Q Exactive |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2022-09-02 05:12:55 | ID requested | |
1 | 2023-12-11 02:31:53 | announced | |
⏵ 2 | 2024-10-22 06:17:14 | announced | 2024-10-22: Updated project metadata. |
Publication List
Keyword List
submitter keyword: Lipopolysaccharides, LC-MS/MS., Enterocytes, Metabolic stress,Biological dataset, Omega-3 polyunsaturated fatty acids, Shotgun proteomics |
Contact List
Salvatore Pisanu |
contact affiliation | Proteomics and Immunodiagnostic Lab at Porto Conte Ricerche Srl, Alghero (SS), Italy. |
contact email | pisanu@portocontericerche.it |
lab head | |
Salvatore Pisanu |
contact affiliation | Porto Conte Ricerche, Alghero, Sardinia, Italy. |
contact email | pisanu@portocontericerche.it |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD036456
- Label: PRIDE project
- Name: Comprehensive proteomic analysis reveals omega-3 fatty acids to counteract endotoxin-stimulated metabolic dysregulation in porcine enterocytes