Aysan Eslami Abriz1,2, Reza Rahbarghazi2,3, Alireza Nourazarian4,5, Çıgır Biray Avci6, Soltan Ali Mahboob1, Maryam Rahnema1,2, Atefeh Araghi7, Morteza Heidarzadeh2. 1. Department of Biochemistry, Higher Education Institute of Rab-Rashid, Tabriz, Iran. 2. Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. 3. Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran. 4. Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. alinour65@gmail.com. 5. Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Golgasht St, Tabriz, 51666-16471, Iran. alinour65@gmail.com. 6. Department of Medical Biology, Faculty of Medicine, Ege University, Izmir, Turkey. 7. Department of Clinical Sciences, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran.
Abstract
BACKGROUND: Atherosclerosis is touted as one of the most critical consequences of diabetes mellitus indicated by local inflammation of endothelial cells. The Effect of Omega 3 fatty acids, mainly docosahexaenoic acid (DHA), has been investigated in cells after exposure to high doses of lipids. The current experiment aimed to address the modulatory effects of docosahexaenoic acid and insulin in palmitic-treated human endothelial cells. METHODS: Human umbilical vein endothelial cells were treated with 1 mM palmitic acid, 50 μM insulin, 50 μM docosahexaenoic acid, and their combination for 48 h. Cell survival rate and apoptosis were measured using MTT and flow cytometry assays. The Griess assay detected NO levels. Protein levels of TNF-α, IL-6, and NF-κB were studied using ELISA and immunofluorescence imaging. The expression of genes participating in atherosclerosis was monitored using PCR array analysis. RESULTS: Oil Red O staining showed the inhibitory effect of DHA and insulin to reduce the intracellular accumulation of palmitic acid. Both DHA and Insulin blunted palmitic acid detrimental effects on HUVECs indicated by an increased survival rate (p < 0.05). The percent of apoptotic cells was decreased in palmitic-treated cells received insulin and DHA compared to palmitic-treated group (p < 0.05). Based on our data, DHA and Insulin diminished the production of all inflammatory cytokines, TNF-α, IL-6, and NF-κB, in palmitic-treated cells (p < 0.05). Similar to these data, NO production was also decreased in all groups treated with insulin and DHA compared to the palmitic-treated cells (p < 0.05). PCR array analysis revealed the modulatory effect of DHA and insulin on the expression of atherosclerosis-related genes pre-treated with palmitic acid compared to the control group (p < 0.05). CONCLUSION: DHA and Insulin could alter the dynamic growth and dysfunctional activity of human endothelial cells after treatment with palmitic acid. Taken together, Omega 3 fatty acids, along with insulin, could dictate specific cell behavior in endothelial cells in vitro.
BACKGROUND:Atherosclerosis is touted as one of the most critical consequences of diabetes mellitus indicated by local inflammation of endothelial cells. The Effect of Omega 3 fatty acids, mainly docosahexaenoic acid (DHA), has been investigated in cells after exposure to high doses of lipids. The current experiment aimed to address the modulatory effects of docosahexaenoic acid and insulin in palmitic-treated human endothelial cells. METHODS:Human umbilical vein endothelial cells were treated with 1 mM palmitic acid, 50 μM insulin, 50 μM docosahexaenoic acid, and their combination for 48 h. Cell survival rate and apoptosis were measured using MTT and flow cytometry assays. The Griess assay detected NO levels. Protein levels of TNF-α, IL-6, and NF-κB were studied using ELISA and immunofluorescence imaging. The expression of genes participating in atherosclerosis was monitored using PCR array analysis. RESULTS:Oil Red O staining showed the inhibitory effect of DHA and insulin to reduce the intracellular accumulation of palmitic acid. Both DHA and Insulin blunted palmitic acid detrimental effects on HUVECs indicated by an increased survival rate (p < 0.05). The percent of apoptotic cells was decreased in palmitic-treated cells received insulin and DHA compared to palmitic-treated group (p < 0.05). Based on our data, DHA and Insulin diminished the production of all inflammatory cytokines, TNF-α, IL-6, and NF-κB, in palmitic-treated cells (p < 0.05). Similar to these data, NO production was also decreased in all groups treated with insulin and DHA compared to the palmitic-treated cells (p < 0.05). PCR array analysis revealed the modulatory effect of DHA and insulin on the expression of atherosclerosis-related genes pre-treated with palmitic acid compared to the control group (p < 0.05). CONCLUSION:DHA and Insulin could alter the dynamic growth and dysfunctional activity of human endothelial cells after treatment with palmitic acid. Taken together, Omega 3 fatty acids, along with insulin, could dictate specific cell behavior in endothelial cells in vitro.
Authors: Lara T Meital; Mark T Windsor; Maria Perissiou; Karl Schulze; Rebecca Magee; Anna Kuballa; Jonathan Golledge; Tom G Bailey; Christopher D Askew; Fraser D Russell Journal: Sci Rep Date: 2019-09-10 Impact factor: 4.379
Authors: Mariely Mendes Furtado; Joana Érica Lima Rocha; Ana Victória da Silva Mendes; Renato Sampaio Mello Neto; Ana Karolinne da Silva Brito; José Otávio Carvalho Sena de Almeida; Emerson Iuri Rodrigues Queiroz; José Vinícius de Sousa França; Ana Lina de Carvalho Cunha Sales; Andreanne Gomes Vasconcelos; Wanessa Felix Cabral; Luana de Oliveira Lopes; Iolanda Souza do Carmo; Selma Aparecida Souza Kückelhaus; José Roberto de Souza de Almeida Leite; Adriana Maria Viana Nunes; Marcia Dos Santos Rizzo; Antônia Maria das Graças Lopes Citó; Ana Karina Marques Fortes Lustosa; Massimo Lucarini; Alessandra Durazzo; Maria do Carmo de Carvalho E Martins; Daniel Dias Rufino Arcanjo Journal: Biology (Basel) Date: 2022-01-27