scholarly journals Palmitoleic acid ameliorates palmitic acid-induced proinflammation in J774A.1 macrophages via TLR4-dependent and TNF-α-independent signallings

2021 ◽  
Vol 169 ◽  
pp. 102270
Author(s):  
Yi-Wen Tsai ◽  
Chieh-Hua Lu ◽  
Richard Cheng-An Chang ◽  
Yung-Pei Hsu ◽  
Low-Tone Ho ◽  
...  
Keyword(s):  
Palmitic Acid ◽  
Palmitoleic Acid ◽  
Tnf Α

Palmitic acid but not palmitoleic acid induces insulin resistance in a human endothelial cell line by decreasing SERCA pump expression

2016 ◽  
Vol 28 (1) ◽  
pp. 53-59 ◽  
Author(s):  
J. Gustavo Vazquez-Jimenez ◽  
Jesus Chavez-Reyes ◽  
Tatiana Romero-Garcia ◽  
Angel Zarain-Herzberg ◽  
Jesus Valdes-Flores ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Endothelial Cell ◽  
Palmitic Acid ◽  
Cell Line ◽  
Palmitoleic Acid ◽  
Human Endothelial Cell ◽  
Endothelial Cell Line ◽  
Human Endothelial Cell Line ◽  
Serca Pump

scholarly journals Ruscogenin alleviates palmitic acid-induced endothelial cell inflammation by suppressing TXNIP/NLRP3 pathway

2020 ◽  
Vol 19 (8) ◽  
pp. 1605-1610
Author(s):  
Hongtao Liu ◽  
Simin Zheng ◽  
Hongfei Xiong ◽  
Xiaoli Niu
Keyword(s):  
Endothelial Cells ◽  
Endothelial Cell ◽  
Cardiovascular Diseases ◽  
Palmitic Acid ◽  
Umbilical Vein ◽  
Intercellular Adhesion Molecule ◽  
Enzyme Linked Immunosorbent Assay ◽  
Dependent Manner ◽  
Intercellular Adhesion Molecule 1 ◽  
Tnf Α

Purpose: To investigate the involvement of ruscogenin in palmitic acid (PA)-induced endothelial cell inflammation. Method: Cultured human umbilical vein endothelial cells (HUVECs) were divided into five groups: control (normal untreated cells), PA (cell treated with palmitic acid), and PA + ruscogenin (1, 10, or 30 μM). Cell viability and apoptosis rate were determined using MTT (3-(4,5)-dimethylthiahiazo(-z-y1)-3,5- di-phenytetrazolium bromide) and flow cytometry assays, respectively. The levels of cytokines, including interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), intercellular adhesion molecule-1 (ICAM-1), and monocyte chemo-attractant protein-1 (MCP-1) were determined by an enzyme-linked immunosorbent assay. Western blotting and real-time polymerase chain reaction (RT-PCR) were used to evaluate the underlying mechanisms of action. Results: PA treatment decreased the viability of HUVECs and induced apoptosis (p < 0.05). Ruscogenin attenuated PA-induced cell death in a dose-dependent manner (p < 0.05). On the other hand, PA induced an increase in IL-1β, TNF-α, ICAM-1, MCP-1, TXNIP (thioredoxin-interacting protein),as well as NLRP3 (nucleotide oligomerization domain-, leucine-rich repeat- and pyrin domain-containing protein 3), all of which were attenuated by ruscogenin (p < 0.05). Conclusion: Ruscogenin alleviates PA-induced endothelial cell inflammation via TXNIP/NLRP3 pathway, thereby providing an insight into new therapeutic strategies to treat cardiovascular diseases. Keywords: Ruscogenin, Palmitic acid, Endothelial cells, Inflammation, TXNIP, NLRP3, Cardiovascular diseases

scholarly journals Effect of docosahexaenoic acid plus insulin on atherosclerotic human endothelial cells

2020 ◽  
Author(s):  
Aysan Eslami Abriz ◽  
Reza Rahbarghazi ◽  
Alireza Nourazarian ◽  
Çıgır Biray Avci ◽  
Soltan Ali Mahboob ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Endothelial Cells ◽  
Docosahexaenoic Acid ◽  
Palmitic Acid ◽  
Pcr Array ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Human Endothelial Cells ◽  
Array Analysis ◽  
Tnf Α

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 1mM palmitic acid, 50μM insulin, 50μM docosahexaenoic acid, and their combination for 48 hours. 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

scholarly journals Effect of docosahexaenoic acid plus insulin on atherosclerotic human endothelial cells

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Aysan Eslami Abriz ◽  
Reza Rahbarghazi ◽  
Alireza Nourazarian ◽  
Çıgır Biray Avci ◽  
Soltan Ali Mahboob ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Endothelial Cells ◽  
Docosahexaenoic Acid ◽  
Palmitic Acid ◽  
Pcr Array ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Human Endothelial Cells ◽  
Array Analysis ◽  
Tnf Α

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.

Effects of palmitic acid on TNF-α-induced cytotoxicity in SK-Hep-1 cells

2012 ◽  
Vol 26 (6) ◽  
pp. 783-790 ◽  
Author(s):  
Jung Min Oh ◽  
Jong Min Choi ◽  
Ji Yoon Lee ◽  
Soo Jin Oh ◽  
Hyoung Chin Kim ◽  
...  
Keyword(s):  
Palmitic Acid ◽  
Tnf Α
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