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Updated: Mar 15, 2026
12:43
On-Chip Endothelial Inflammatory Phenotyping
Published on: July 21, 2012
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APOC3 induces endothelial dysfunction through TNF-α and JAM-1.
Yun Tao1, Yisong Xiong2, Huimin Wang1
1Center of Laboratory Medicine, Affiliated Hospital, Nantong University, 20 Xi Si Road, Nantong, 226001, People's Republic of China.
Lipids in Health and Disease
|September 14, 2016
Summary
Apolipoprotein C3 (APOC3) promotes cardiovascular disease (CVD) by increasing inflammation and endothelial cell (EC) dysfunction. Targeting APOC3-induced inflammation may offer a novel therapeutic strategy for CVD.
Area of Science:
- Lipid metabolism and cardiovascular research
- Endothelial cell biology
- Inflammation and atherosclerosis
Background:
- Cardiovascular disease (CVD) fatality rates are rising, with elevated triglycerides as a risk factor.
- Endothelial cell (EC) dysfunction is a key contributor to CVD.
- Apolipoprotein C3 (APOC3) is linked to hyperlipidemia and CVD risk, but its direct effects on ECs were unclear.
Purpose of the Study:
- To determine the direct effects of APOC3 on ECs.
- To investigate APOC3's role in EC inflammation, chemotaxis, and exudation.
Main Methods:
- Utilized ELISA, qRT-PCR, immunofluorescence, flow cytometry, and transwell assays on human umbilical vein endothelial cells (HUVECs).
- Employed siRNA to silence TNF-α and JAM-1 to analyze APOC3's influence on EC inflammatory processes.
Main Results:
- APOC3 correlated with EC inflammation, marked by increased TNF-α expression.
- APOC3 disrupted endothelial tight junctions (TJs) via elevated JAM-1, promoting leukocyte exudation and EC chemotaxis.
- APOC3 increased THP-1 cell adhesion to HUVECs.
Conclusions:
- Elucidated the mechanism of APOC3-induced EC inflammation, chemotaxis, and exudation.
- Suggests targeting APOC3-mediated inflammatory pathways as a potential new therapeutic approach for CVD.
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