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Published on: September 28, 2015
Long Non-Coding RNA-ATB Attenuates the Angiotensin II-Induced Injury of Vascular Endothelial Cell
Miao Wang1, Shouyi Gan1, Bin Li1
1Deparment of Cardiovascular Medicine, Xian Ning Central Hospital, the First Affiliated Hospital of Hubei University of Science and Technology, Xian Ning Central Hospital, Xian'an District, Xian Ning City, Hubei Province, China.
Objective:
Long noncoding RNA activated by transforming growth factor-II (lncRNA-ATB) has been reported to have critical roles in carcinogenesis and progression of several cancers. However, the expression and biological roles of lncRNA-ATB in cardiovascular disease are still unclear. This study aimed to investigate the role of lncRNA-ATB expression in endothelial cell injury.
Materials:
Angiotensin II (Ang II)-induced damage to endothelial cells (ECs) plays a crucial role in the research of cardiovascular disease; it is used to treat human umbilical vein endothelial cell (HUVECs) at different concentrations. qRT-PCR is used to identify the expression of lncRNA-ATB in HUVECs. CCK-8 assay and flow cytometry analysis are performed to assess cell viability and apoptosis of HUVECs.
Results:
Ang II treatment down-regulated the lncRNA-ATB level in HUVECs. Meanwhile, both knockdown of lncRNA-ATB and Ang II treatment impaired the viability, and increased apoptosis rate of cells. Furthermore, overexpression of lncRNA-ATB inhibited cell apoptosis and repaired cell viability in HUVECs.
Conclusion:
The findings indicated that lncRNA-ATB might be associated with the development of the cardiovascular disease.
Insights
Long noncoding RNA activated by transforming growth factor-II (lncRNA-ATB) plays a protective role in endothelial cell injury. Lower lncRNA-ATB levels correlate with cardiovascular disease development, impacting cell viability and apoptosis.
Area of Science:
- Cardiovascular Biology
- Molecular Biology
- RNA Biology
Background:
- Long noncoding RNA activated by transforming growth factor-II (lncRNA-ATB) is implicated in various cancers.
- The role of lncRNA-ATB in cardiovascular disease and endothelial cell injury remains largely uncharacterized.
Purpose of the Study:
- To investigate the expression and function of lncRNA-ATB in endothelial cell injury.
- To elucidate the potential involvement of lncRNA-ATB in cardiovascular disease pathogenesis.
Main Methods:
- Human umbilical vein endothelial cells (HUVECs) were subjected to Angiotensin II (Ang II)-induced injury.
- lncRNA-ATB expression was quantified using qRT-PCR.
- Cell viability and apoptosis were assessed via CCK-8 assay and flow cytometry.
Main Results:
- Ang II treatment significantly downregulated lncRNA-ATB expression in HUVECs.
- Knockdown of lncRNA-ATB exacerbated Ang II-induced endothelial cell injury, impairing viability and increasing apoptosis.
- Overexpression of lncRNA-ATB demonstrated protective effects, inhibiting apoptosis and restoring cell viability.
Conclusions:
- lncRNA-ATB expression is reduced during endothelial cell injury induced by Ang II.
- lncRNA-ATB exhibits protective functions against endothelial cell injury.
- These findings suggest lncRNA-ATB is a potential therapeutic target for cardiovascular disease.
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lncRNA - Long Non-coding RNAs
lncRNA - Long Non-coding RNAs

