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Grant number: 15/06376-8
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): October 01, 2015
Effective date (End): March 31, 2016
Field of knowledge:Health Sciences - Nutrition - Nutrition Biochemistry
Principal researcher:José Cesar Rosa Neto
Grantee:Camila Oliveira de Souza
Supervisor abroad: Philip Charles Calder
Home Institution: Instituto de Ciências Biomédicas (ICB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Research place: University of Southampton, England  
Associated to the scholarship:13/04765-1 - Palmitoleic acid supplementation effects on immune-metabolics alterations induced by high fat diet on PPAR knockout mice, BP.DR


Chronic inflammation contributes to many human diseases and conditions. Often these may be related to diet suggesting that dietary components may either trigger or modify inflammatory responses. Cell culture systems offer controlled settings in which the effect of specific compounds, including nutrients, can be tested for their effects on inflammatory processes and their mechanisms of action investigated. Human umbilical vein endothelial cells (HUVECs) offer such possibilities. The host lab is currently conducting research with HUVECs. It is proposed to compare the effects of palmitoleic acid, which is not explored in this model, with those of the related fatty acids palmitic acid and oleic acid. The work will identify novel actions and mechanisms of the impact of palmitoleic acid on inflammatory processes. So, HUVECs will be cultured under the standard conditions. They will be exposed to palmitic, oleic or palmitoleic acid at concentrations from 100 to 500 ¼M for a period of 24 hours. This is known to be sufficient time to allow incorporation of fatty acids into the cells; incorporation of the fatty acids will be confirmed through fatty acid analysis of cells using gas chromatography. The modified cells will then be exposed to an inflammatory stimulus. After various periods of times cells will be studied for the appearance of inflammatory markers on their surface using flow cytometry while cell signalling events will be followed by Western blotting of key proteins and confocal microscopy (protein movement within the cell) and changes in inflammatory gene expression will be followed by RT-PCR. Cell culture supernatants will be assayed by ELISA for the appearance of cytokines, chemokines and lipid mediators (eicosanoids, resolvins) involved in the inflammatory response.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE SOUZA, CAMILA OLIVEIRA; VALENZUELA, CARINA A.; BAKER, ELLA J.; MILES, ELIZABETH A.; NETO, JOSE C. ROSA; CALDER, PHILIP C.. Palmitoleic Acid has Stronger Anti-Inflammatory Potential in Human Endothelial Cells Compared to Oleic and Palmitic Acids. MOLECULAR NUTRITION & FOOD RESEARCH, v. 62, n. 20, . (13/04765-1, 15/06376-8, 16/01409-8)

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